CN104131064A - In-situ hybridization detection kit of miR-378 in early stage of pathologic evolution of gastric cancer, detection method and application - Google Patents
In-situ hybridization detection kit of miR-378 in early stage of pathologic evolution of gastric cancer, detection method and application Download PDFInfo
- Publication number
- CN104131064A CN104131064A CN201310159214.9A CN201310159214A CN104131064A CN 104131064 A CN104131064 A CN 104131064A CN 201310159214 A CN201310159214 A CN 201310159214A CN 104131064 A CN104131064 A CN 104131064A
- Authority
- CN
- China
- Prior art keywords
- hybridization
- cancer
- mir
- kit
- test kit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 208000005718 Stomach Neoplasms Diseases 0.000 title claims abstract description 42
- 238000001514 detection method Methods 0.000 title claims abstract description 32
- 108091027983 miR-378-1 stem-loop Proteins 0.000 title abstract description 35
- 108091089716 miR-378-2 stem-loop Proteins 0.000 title abstract description 35
- 206010017758 gastric cancer Diseases 0.000 title abstract description 17
- 201000011549 stomach cancer Diseases 0.000 title abstract description 17
- 238000007901 in situ hybridization Methods 0.000 title abstract description 11
- 230000001575 pathological effect Effects 0.000 title abstract description 9
- 238000009396 hybridization Methods 0.000 claims abstract description 49
- 239000000523 sample Substances 0.000 claims abstract description 38
- 238000000034 method Methods 0.000 claims abstract description 27
- 239000003550 marker Substances 0.000 claims abstract description 11
- 239000000758 substrate Substances 0.000 claims abstract description 7
- 108090000623 proteins and genes Proteins 0.000 claims abstract description 6
- 206010028980 Neoplasm Diseases 0.000 claims description 49
- 201000011510 cancer Diseases 0.000 claims description 37
- 201000000498 stomach carcinoma Diseases 0.000 claims description 25
- 238000011282 treatment Methods 0.000 claims description 22
- 238000012360 testing method Methods 0.000 claims description 18
- 238000011065 in-situ storage Methods 0.000 claims description 15
- 238000007899 nucleic acid hybridization Methods 0.000 claims description 10
- YBJHBAHKTGYVGT-ZKWXMUAHSA-N (+)-Biotin Chemical compound N1C(=O)N[C@@H]2[C@H](CCCCC(=O)O)SC[C@@H]21 YBJHBAHKTGYVGT-ZKWXMUAHSA-N 0.000 claims description 9
- 210000004369 blood Anatomy 0.000 claims description 6
- 239000008280 blood Substances 0.000 claims description 6
- 208000037273 Pathologic Processes Diseases 0.000 claims description 5
- 230000009054 pathological process Effects 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 4
- 229930003756 Vitamin B7 Natural products 0.000 claims description 3
- 239000011735 vitamin B7 Substances 0.000 claims description 3
- 235000011912 vitamin B7 Nutrition 0.000 claims description 3
- 241001529572 Chaceon affinis Species 0.000 claims description 2
- 108090000790 Enzymes Proteins 0.000 claims description 2
- 102000004190 Enzymes Human genes 0.000 claims description 2
- GNBHRKFJIUUOQI-UHFFFAOYSA-N fluorescein Chemical compound O1C(=O)C2=CC=CC=C2C21C1=CC=C(O)C=C1OC1=CC(O)=CC=C21 GNBHRKFJIUUOQI-UHFFFAOYSA-N 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 239000002086 nanomaterial Substances 0.000 claims description 2
- 210000005259 peripheral blood Anatomy 0.000 claims description 2
- 239000011886 peripheral blood Substances 0.000 claims description 2
- 239000000941 radioactive substance Substances 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- 239000012747 synergistic agent Substances 0.000 claims description 2
- 238000012216 screening Methods 0.000 abstract description 8
- 239000003814 drug Substances 0.000 abstract description 3
- 239000002679 microRNA Substances 0.000 abstract description 2
- 108091070501 miRNA Proteins 0.000 abstract 1
- 238000013016 damping Methods 0.000 description 24
- 239000012530 fluid Substances 0.000 description 24
- 108091032973 (ribonucleotides)n+m Proteins 0.000 description 18
- 210000004027 cell Anatomy 0.000 description 17
- 238000003745 diagnosis Methods 0.000 description 17
- 239000007788 liquid Substances 0.000 description 12
- 201000010099 disease Diseases 0.000 description 11
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 11
- 238000005516 engineering process Methods 0.000 description 10
- 108020004707 nucleic acids Proteins 0.000 description 8
- 150000007523 nucleic acids Chemical class 0.000 description 8
- 102000039446 nucleic acids Human genes 0.000 description 8
- 238000004321 preservation Methods 0.000 description 8
- 239000012153 distilled water Substances 0.000 description 6
- 238000004043 dyeing Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 235000011194 food seasoning agent Nutrition 0.000 description 5
- 230000003449 preventive effect Effects 0.000 description 5
- 238000011269 treatment regimen Methods 0.000 description 5
- 239000006059 cover glass Substances 0.000 description 4
- 238000002059 diagnostic imaging Methods 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- SHIBSTMRCDJXLN-UHFFFAOYSA-N Digoxigenin Natural products C1CC(C2C(C3(C)CCC(O)CC3CC2)CC2O)(O)C2(C)C1C1=CC(=O)OC1 SHIBSTMRCDJXLN-UHFFFAOYSA-N 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 229960002685 biotin Drugs 0.000 description 3
- 235000020958 biotin Nutrition 0.000 description 3
- 239000011616 biotin Substances 0.000 description 3
- 239000003153 chemical reaction reagent Substances 0.000 description 3
- 230000000295 complement effect Effects 0.000 description 3
- 210000002249 digestive system Anatomy 0.000 description 3
- QONQRTHLHBTMGP-UHFFFAOYSA-N digitoxigenin Natural products CC12CCC(C3(CCC(O)CC3CC3)C)C3C11OC1CC2C1=CC(=O)OC1 QONQRTHLHBTMGP-UHFFFAOYSA-N 0.000 description 3
- SHIBSTMRCDJXLN-KCZCNTNESA-N digoxigenin Chemical compound C1([C@@H]2[C@@]3([C@@](CC2)(O)[C@H]2[C@@H]([C@@]4(C)CC[C@H](O)C[C@H]4CC2)C[C@H]3O)C)=CC(=O)OC1 SHIBSTMRCDJXLN-KCZCNTNESA-N 0.000 description 3
- 238000012151 immunohistochemical method Methods 0.000 description 3
- 230000003902 lesion Effects 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 238000009007 Diagnostic Kit Methods 0.000 description 2
- LTMHDMANZUZIPE-AMTYYWEZSA-N Digoxin Natural products O([C@H]1[C@H](C)O[C@H](O[C@@H]2C[C@@H]3[C@@](C)([C@@H]4[C@H]([C@]5(O)[C@](C)([C@H](O)C4)[C@H](C4=CC(=O)OC4)CC5)CC3)CC2)C[C@@H]1O)[C@H]1O[C@H](C)[C@@H](O[C@H]2O[C@@H](C)[C@H](O)[C@@H](O)C2)[C@@H](O)C1 LTMHDMANZUZIPE-AMTYYWEZSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
- 206010027336 Menstruation delayed Diseases 0.000 description 2
- 108020004711 Nucleic Acid Probes Proteins 0.000 description 2
- 108020005187 Oligonucleotide Probes Proteins 0.000 description 2
- 239000000427 antigen Substances 0.000 description 2
- 108091007433 antigens Proteins 0.000 description 2
- 102000036639 antigens Human genes 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 208000016644 chronic atrophic gastritis Diseases 0.000 description 2
- 238000003759 clinical diagnosis Methods 0.000 description 2
- 239000002299 complementary DNA Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- LTMHDMANZUZIPE-PUGKRICDSA-N digoxin Chemical compound C1[C@H](O)[C@H](O)[C@@H](C)O[C@H]1O[C@@H]1[C@@H](C)O[C@@H](O[C@@H]2[C@H](O[C@@H](O[C@@H]3C[C@@H]4[C@]([C@@H]5[C@H]([C@]6(CC[C@@H]([C@@]6(C)[C@H](O)C5)C=5COC(=O)C=5)O)CC4)(C)CC3)C[C@@H]2O)C)C[C@@H]1O LTMHDMANZUZIPE-PUGKRICDSA-N 0.000 description 2
- 229960005156 digoxin Drugs 0.000 description 2
- LTMHDMANZUZIPE-UHFFFAOYSA-N digoxine Natural products C1C(O)C(O)C(C)OC1OC1C(C)OC(OC2C(OC(OC3CC4C(C5C(C6(CCC(C6(C)C(O)C5)C=5COC(=O)C=5)O)CC4)(C)CC3)CC2O)C)CC1O LTMHDMANZUZIPE-UHFFFAOYSA-N 0.000 description 2
- 230000003053 immunization Effects 0.000 description 2
- 238000002649 immunization Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 230000000155 isotopic effect Effects 0.000 description 2
- 210000000265 leukocyte Anatomy 0.000 description 2
- 108020004999 messenger RNA Proteins 0.000 description 2
- 238000000386 microscopy Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000002853 nucleic acid probe Substances 0.000 description 2
- 239000002751 oligonucleotide probe Substances 0.000 description 2
- 210000002784 stomach Anatomy 0.000 description 2
- 210000004881 tumor cell Anatomy 0.000 description 2
- OALHHIHQOFIMEF-UHFFFAOYSA-N 3',6'-dihydroxy-2',4',5',7'-tetraiodo-3h-spiro[2-benzofuran-1,9'-xanthene]-3-one Chemical compound O1C(=O)C2=CC=CC=C2C21C1=CC(I)=C(O)C(I)=C1OC1=C(I)C(O)=C(I)C=C21 OALHHIHQOFIMEF-UHFFFAOYSA-N 0.000 description 1
- 102000002260 Alkaline Phosphatase Human genes 0.000 description 1
- 108020004774 Alkaline Phosphatase Proteins 0.000 description 1
- 108020003215 DNA Probes Proteins 0.000 description 1
- 239000003298 DNA probe Substances 0.000 description 1
- 241000589902 Leptospira Species 0.000 description 1
- 241001215120 Leptospirales Species 0.000 description 1
- 108700011259 MicroRNAs Proteins 0.000 description 1
- 108700019961 Neoplasm Genes Proteins 0.000 description 1
- 102000048850 Neoplasm Genes Human genes 0.000 description 1
- 108020004518 RNA Probes Proteins 0.000 description 1
- 239000003391 RNA probe Substances 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000000692 anti-sense effect Effects 0.000 description 1
- 239000003150 biochemical marker Substances 0.000 description 1
- 150000001720 carbohydrates Chemical class 0.000 description 1
- 230000009668 clonal growth Effects 0.000 description 1
- 230000000093 cytochemical effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000013399 early diagnosis Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 235000011187 glycerol Nutrition 0.000 description 1
- 239000005556 hormone Substances 0.000 description 1
- 229940088597 hormone Drugs 0.000 description 1
- 238000003365 immunocytochemistry Methods 0.000 description 1
- 238000011532 immunohistochemical staining Methods 0.000 description 1
- 238000012308 immunohistochemistry method Methods 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000002595 magnetic resonance imaging Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001394 metastastic effect Effects 0.000 description 1
- 206010061289 metastatic neoplasm Diseases 0.000 description 1
- 239000002773 nucleotide Substances 0.000 description 1
- 125000003729 nucleotide group Chemical group 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000021368 organ growth Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000036285 pathological change Effects 0.000 description 1
- 231100000915 pathological change Toxicity 0.000 description 1
- 230000007170 pathology Effects 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000011321 prophylaxis Methods 0.000 description 1
- 238000004445 quantitative analysis Methods 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000003757 reverse transcription PCR Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 210000002966 serum Anatomy 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 230000008467 tissue growth Effects 0.000 description 1
- 239000012745 toughening agent Substances 0.000 description 1
- 238000013518 transcription Methods 0.000 description 1
- 230000035897 transcription Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12Q—MEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEIC ACIDS OR MICROORGANISMS; COMPOSITIONS OR TEST PAPERS THEREFOR; PROCESSES OF PREPARING SUCH COMPOSITIONS; CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL OR ENZYMOLOGICAL PROCESSES
- C12Q1/00—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions
- C12Q1/68—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions involving nucleic acids
- C12Q1/6876—Nucleic acid products used in the analysis of nucleic acids, e.g. primers or probes
- C12Q1/6883—Nucleic acid products used in the analysis of nucleic acids, e.g. primers or probes for diseases caused by alterations of genetic material
- C12Q1/6886—Nucleic acid products used in the analysis of nucleic acids, e.g. primers or probes for diseases caused by alterations of genetic material for cancer
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12Q—MEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEIC ACIDS OR MICROORGANISMS; COMPOSITIONS OR TEST PAPERS THEREFOR; PROCESSES OF PREPARING SUCH COMPOSITIONS; CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL OR ENZYMOLOGICAL PROCESSES
- C12Q2600/00—Oligonucleotides characterized by their use
- C12Q2600/158—Expression markers
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12Q—MEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEIC ACIDS OR MICROORGANISMS; COMPOSITIONS OR TEST PAPERS THEREFOR; PROCESSES OF PREPARING SUCH COMPOSITIONS; CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL OR ENZYMOLOGICAL PROCESSES
- C12Q2600/00—Oligonucleotides characterized by their use
- C12Q2600/178—Oligonucleotides characterized by their use miRNA, siRNA or ncRNA
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Organic Chemistry (AREA)
- Proteomics, Peptides & Aminoacids (AREA)
- Engineering & Computer Science (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Analytical Chemistry (AREA)
- Zoology (AREA)
- Genetics & Genomics (AREA)
- Wood Science & Technology (AREA)
- Physics & Mathematics (AREA)
- Biotechnology (AREA)
- Microbiology (AREA)
- Molecular Biology (AREA)
- Hospice & Palliative Care (AREA)
- Biophysics (AREA)
- Oncology (AREA)
- Biochemistry (AREA)
- Bioinformatics & Cheminformatics (AREA)
- General Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Measuring Or Testing Involving Enzymes Or Micro-Organisms (AREA)
Abstract
The invention discloses an in-situ hybridization detection kit which includes a hybridization probe and a marker. The invention also discloses a method for detecting change of expression of a miR-378 gene, which is closely relative to pathologic evolution in an early stage of gastric cancer cancerization, through the kit in a manner of in-situ hybridization detection. The method includes following steps: (1) on the condition that the hybridization probe and a target sequence can form a stable hybridization complex, contacting a to-be-detected miR-378 in a substrate with the hybridization probe to form the hybridization complex; and (2) detecting the hybridization complex. By means of the kit and the method, an expression quantity of the miR-378 can be detected on a miRNA level. Compared with image medicine and a clinical biochemical detection index in the prior art, The kit and the method can be applied in an earlier stage and can achieve a true RNA-level screening operation during the early stage of cancerization. Meanwhile, the detection method is simple and convenient, is low in cost and is suitable for being popularized in hospitals in counties or districts.
Description
Technical field
The present invention relates to field of biological detection, more particularly, relate to change with cancer of the stomach Pathologic rna expression the correlation detection technology of (Pathologic process).
Background technology
The data providing according to domestic and international authoritative institution, the newly-increased number of the annual cancer of China has reached 3,120,000, death toll nearly 2,600,000, patient surpasses 7,000,000, the annual newly-increased cancer patients 8,000,000 in the whole world, death toll approaches 8,000,000, and patient approximately has more than 8,400 ten thousand people, to the above number of the year two thousand twenty, will double, this is one group of fearful numeral.Cancer diagnosis and treatment cost is more and more higher, by cancer patients's year medical expense 200,000, (poor area may be higher, developed regions may exceed 200,000 far away), more than 700 ten thousand patients, annual cost is 1.4 trillion Renminbi, deduction cost 35% approximately 400,000,000,000, approximately has 1,000,000,000,000 Renminbi to consume in vain every year.And cancer patients is most of can be dead soon after treatment.Therefore, existing clinical cancer diagnosis and treatment pattern must change, and innovative point of the present invention is to accomplish in advance preventative examination, then gets involved in time preventative regulation and control and prophylactic treatment, accomplishes preventiveing treatment of disease of gene level cancer.
The inventor is in the middle discovery that studies for a long period of time, and causing the major reason that cancer mortality is not fallen is to accomplish real early diagnosis.According to existing clinical medicine image (B ultrasonic, CT, Magnetic resonance imaging etc.) and with other biochemistry (cancer antigen, carcinomebryonic antigen, carbohydrate hormone, the cytolemma factor, nuclear factor, cell streaming technology) index, carry out diagnosing cancer, all that tumour forms rear diagnosis, the former will learn in a organized way and change or existing occupying lesion, the latter's major part be tumour form rear secreted, discharge or the marker of tumour.The clinical idea of tradition thinks that occupancy cancer piece is the diagnosis that belongs to early-stage cancer under 2 centimeters, this concept is worth conscientiously discussing, it is rigorous not that 2 centimeters of early stage these of following cancer piece genus define science, from cytology angle, analyze, the lump of 1 centimeter approximately has 100,000,000 tumour cells, its three-dimensional cell stack number of the lump of 2 centimeters is far above 200,000,000 tumour cells, from canceration, to mono-clonal cancer cells, produce and form the cancer piece of 2 centimeters early stage, its Pathologic process is quite long, it may be 5 years or 10 years, or even 10 years above (except special case), what be difficult to confirm is in this Pathologic process, lump is the unique spot of cancer and independent focus, possible cancer cells moves to other tissue or organ growth already.Clinical study confirms already, and once form lump, other cancer cells moves to other position clonal growth by different approaches, once after excision primary tumor, other organ recurrence kitchen range or multiple cancer piece kitchen range successively form.Therefore, with 2 centimeters of following cancerous swelling piece sizes, whether define in early days clinically, rigorous not (some case, when finding primary lesion, find metastatic lesion simultaneously, not in the content of our statement), be at this moment diagnosis in late period and treatment of late stage in fact, this is the true cause that causes cancer mortality not fallen.
Along with molecular biotechnology is day by day perfect, functional genomics, the deep expansion of the research such as cancer gene group, in order to seek more early stage diagnosing cancer, treatment cancer and preventing cancer, makes great progress.So far, we likely do more accurate early screening and diagnosis on the one-level functional transcription product (mRNA level or microRNA) of gene, front in canceration early stage or cancer cells formation (mono-clonal), just can accomplish early prediction and examination.
The death toll of annual cancer of the stomach surpasses 1,000,000,75% Patients with Gastric Cancer in Asia in the world, and China has accounted for significant proportion.And M & M is also rising.In experimental study, find miR-378 great expression in patients with gastric cancer, and just have obviously and increase in cancer of the stomach early expression amount.
The present invention selects many group clinical samples (Patients with Gastric Cancer, high risk population, normal control) to adopt nucleic acid hybridization in situ technology and ImmunohistochemistryMethods Methods to detect analysis to the early warning of miR-378 and cancer of the stomach.The inventor finds that miR-378 has obvious expression amount to change patients with gastric cancer, cancer high risk population's (chronic atrophic gastritis and stomach have Leptospira), normal control people, has very important clinical diagnosis meaning using miR-378 in earlier stage as the pathological change of early screening cancer of the stomach under study for action.The Preventive early warning of doing in after cancer of the stomach canceration examination in early stage and curing gastric cancer also has very important clinical meaning.
Contriver is in long-term research, drawn a kind of new concept, the clinical diagnosis and treatment pattern of cancer and other clinical major disease must change, can not only stop and control now oneself disease (diagnosis and treatment after morbidity), accomplish preventative diagnosis and treatment, accomplish to preventive treatment of disease, only in this way could reduce the M & M of major disease, reduce social cost and medical treatment cost.Therefore, contriver, in the rna level kit for screening and medicine of development and production major disease, innovates theoretical and technical.Particularly screen clinical samples (normal population, cancer high risk population, tumour patient), broken through the consistency research and development thinking of healthy tissues and tumor tissues comparison, find and develop the rna level becoming before cancer, develop closely related with cancer early gene physiopathology, and the extremely important target of clinical meaning (disease gene), tumour is clinically formed to the preventative diagnosis and treatment that rear diagnosis and treatment pattern becomes tumour, striven for time and the space of tumor diagnosis and treatment, reach preventing cancer.
At present, someone has applied for that miR-378 express spectra detects patent, use be the analytical technologies such as chip, RT-PCR, sample is serum.The present invention adopts hybridization in situ technique and groupization immunization method to detect the detection technique of miR-378 expression amount, adopts peripheral blood leucocyte sample or histocyte sample, and similar reagents box and screening method have no report.
The inventor is in the requirement for novelty invention, designed (patients with gastric cancer, high risk population, normal control) different pieces of information example group, with hybridization in situ technique, detect, result shows above Patients with Gastric Cancer miR-378 high expression level, high risk population has and expresses in various degree 6-18%, and normal control is all zero to express.Show that miR-378 is the important symbol thing of cancer of the stomach canceration examination in early stage.
Hybridization in situ technique (in situ hybridization) is that molecular biology and Cytochemical Technique are combined, and the nucleic acid molecule of mark of take is probe, in the technology of histocyte in situ detection specific nucleic acid molecule.Its principle is the nucleic acid strand (being probe) that makes to contain distinguished sequence, passes through mark, under optimum conditions with histocyte in complementary nucleic acid strand be that target nucleic acid is hybridized, with radioautograph or immunocytochemistry, label probe is surveyed again, thereby shown special DNA or RNA molecule at cell in-situ.
The probe of in situ hybridization is the molecule of known array or sequence the unknown but known nucleic acid molecule (though indefinite this molecule full sequence of molecule, but known its for what target molecule), the kind of probe can be divided into again DNA probe, cDNA probe, cRNA probe and synthetic oligonucleotide probe by properties of nucleic acids difference.For the ease of spike, probe must, with certain means mark in addition, be beneficial to later detection.Conventional marker comprises radionuclide and the large class of non-radioactive marker two.Conventional isotopic label has
3h,
35s,
125i and
32p.The advantages such as susceptibility is high although isotopic label has, back end is comparatively clear, because radio isotope all can damage human and environment, have the trend being replaced by heterotope recently.At present the most frequently used in heterotope marker have three kinds of vitamin H, digoxin and fluoresceins.The method that detects these markers is all extremely sensitive.
According to probe used and the difference that will detect nucleic acid, can be divided into DNA-DNA again, RNA-DNA, RNA-RNA hybridization.No matter but the hybridization of any form, all must be through five large processes, histiocytic fixing, prehybridization, hybridization, flushing and demonstration.The present invention adopts the Crossing system of RNA-RNA, synthetic probe (RNA) and the target RNA detecting are the principles that adopts base complementrity (hybridization is complementary), simultaneously through long-time research with observe, start and termination place residue on not impact of the result detecting.
In view of the diagnosis of cancer of the stomach clinically (gastroscope, medical imaging and biochemical indicator thing are all the diagnosis after tumour forms) is at present diagnosis in late period, treatment is also treatment of late stage, is also the treatment pattern that causes mortality ratio not fallen.Original intention of the present invention is to want to improve at present the diagnosis and treatment pattern of major disease clinically, from treating the disease affected, become preventative preventiveing treatment of disease, reach preventative diagnosis and treatment, current medical imaging means and numerous biochemical marker cannot be detected and become rna level before cancer and quantize change technology, do the technological breakthrough of novelty, provide cancer the front rna level examination technology that becomes.Made to have had clinically a front technology (tumour does not have before formation) that becomes the real early screening of rna level of new cancer, for the diagnosis and treatment of clinical cancer of the stomach are raced against time and space.
In sum, first object of the present invention is to provide a kind of hybridization in situ detection kit, and it comprises in situ hybridization detection probes and marker.Secondly, the present invention shifts the relevant in situ hybridization detection method of early warning after also will providing mentioned reagent box for the examination in early stage of cancer of the stomach Pathologic and treatment.
Summary of the invention
For realizing object of the present invention, technical scheme of the present invention is as follows:
First the present invention provides a kind of hybridization in situ detection kit, and it comprises hybridization probe and marker, and wherein, described hybridization probe has respectively sequence number shown in sequence table SEQ ID: NR_029870, nucleotide sequence length 66bp.
A preferred version of test kit of the present invention is that described marker is selected from radioactive substance, chemoluminescence or substance that show color, vitamin H, metal king crab, fluorescein, enzyme and nano material.
A preferred version of test kit of the present invention is also to comprise hybridization solution.
A preferred version of test kit of the present invention is also to comprise toughener.
A preferred version of test kit of the present invention is also to comprise developer.
Cancer of the stomach Pathologic of the present invention miR-378 kit for screening in early stage using value is, to the examination in early stage of cancer of the stomach Pathologic, and early warning occurs for Preventive, diffusion after canceration or after treatment, further coordinates clinical treatment.
The present invention also provides a kind of detection method of miR-378 in situ hybridization, comprises the following steps:
(1) described hybridization probe and target sequence can form under the condition of stablizing hybridization complex in the above, RNA to be measured in substrate contacted to formation hybridization complex with hybridization probe; With
(2) detect described hybridization complex.
Detection method of the present invention, wherein preferably, the condition that hybridization complex is stablized in described forming is: the temperature of nucleic acid hybridization is 42 ℃; The time of nucleic acid hybridization is 16-24 hour.
Detection method of the present invention, wherein preferably, described substrate is selected people's blood leucocyte sample or other organ-tissue cell specimen.More preferably, described blood preparation or other organ-tissue cell specimen are from the high risk population of patients with gastric cancer, cancer of the stomach, healthy normal population.
Detection kit of the present invention is to adopt nucleic acid hybridization technique and groupization immunization method to combine, take miR-378 as detected object, synthesising probing needle is miR-378 hybridization complementary sequence, and the substrate of detection is the expression amount of blood of human body sample white corpuscle or histiocytic miR-378.The display packing of hybridization in situ technique can provide sxemiquantitative or the quantitative expression deciding degree of miR-378.The expression amount of judging above mRNA according to immunohistochemical methods colour developing after hybridization, normal people miR-378 zero expresses, and does not develop the color; The low expression of high risk population, a small amount of cell dyeing; Patients with Gastric Cancer high expression level, a large amount of cell dyeings.
The component of diagnostic kit of the present invention is by hybridization probe, hybridization solution, developer, the compositions such as synergistic agent.The nucleic acid hybridization principle of this test kit is that molecular biology insider all knows, and concrete operation step is under sample disposal, prehybridization, hybridization, immunohistochemical staining, mirror, to carry out quantitative analysis, report the test, and wherein the concrete steps of hybridization comprise:
1). sample to be measured is put into reactive tank;
2). instrument discards liquid automatically, automatically adds Digestive system;
3). instrument discards liquid automatically, automatically rear fixing;
4). instrument discards liquid automatically, automatically prehybridization (42 ℃);
5). instrument discards liquid automatically, automatically cleans;
6). instrument discards liquid automatically, automatically hybridization (42 ℃);
7). instrument discards liquid automatically, automatically cleans;
8). instrument discards liquid automatically, and automatic and DIG antibody is cultivated (room temperature);
9). instrument discards liquid automatically, automatically cleans colour developing;
10). take out mounting microscopy.
The scheme of a preferred embodiment of the present invention is: with miR-378 synthetic digoxigenin labeled for nucleic acid probe (cDNA of digoxigenin labeled, RNA and oligonucleotide probe, not only probe has a biotin labeling advantage, also overcome biotin labeled probe and in crossover process, organized the shortcomings such as the dry sorrow of Endogenous Biotin in position), this hybridization probe and the leukocytic RNA nucleic acid to be measured of blood of human body are hybridized, by the method for immunohistochemical methods, develop the color again, existence and location at light Microscopic observation RNA, according to the cell count of dyeing, the expression amount of judgement object RNA.
The inventive method is current conventional nucleic acid hybridization in situ technology, the method is by the miR-378 expression amount in detection substrate cell, be used for determining the cancer of the stomach Pathologic RNA variable quantity in early stage, early warning cancer of the stomach whether occur and patients with gastric cancer treatment after the whether prediction of Preventive.Because miR-378 is zero expression in normal people, if expression amount increases, the risk getting a cancer of the stomach is described, illustrate that cancer of the stomach change occurs, or the postoperative Preventive of Patients with Gastric Cancer, thereby the diagnostic message of acquisition cancer of the stomach.
A test kit can many person-portions be used or person-portion use.
The present invention has following beneficial effect:
Clinical meaning of the present invention is to follow the tracks of more in early days the variation that detects miR-378 expression amount in cancer of the stomach pathology evolution process, and early warning cancer of the stomach occurs, development trend.Diagnostic kit of the present invention is with other detects cancer of the stomach mark clinically, and medical imaging inspection has and showing difference.The present invention can examination cancer of the stomach Pathologic the miR-378 unconventionality expression in early stage, before the recurrence of occupancy carninomatosis kitchen range is not found in medical imaging inspection, before cancer biochemical indicator does not produce extremely, also before not forming tumor focus, can accomplish early the information acquisition of miR-378 abnormal expression, give real early warning of clinical patients with gastric cancer, so just likely implement early screening, early prevention, the early treatment of cancer, likely from source, thoroughly effect a radical cure cancer of the stomach foul disease.
In addition, feature highly sensitive, high specificity that test kit provided by the invention has, meanwhile, detection method of the present invention is convenient and simple for operation, and Neng Municipal Hospitals are widely used and promoted.
The simple declaration of accompanying drawing
Fig. 1 is that illustration is implemented in miR-378 in situ hybridization of the present invention;
Fig. 2 is that in the embodiment of the present invention, Patients with Gastric Cancer miR-378 expresses picture;
Fig. 3 is that high risk population miR-378 expresses picture;
Fig. 4 is that in the embodiment of the present invention, normal people miR-378 expresses picture.
Embodiment:
Below in conjunction with embodiment, be described more specifically content of the present invention.Should be appreciated that, the following examples are non-limiting content of the present invention for explanation, and any pro forma change or accommodation will fall into protection scope of the present invention.
Embodiment 1
The in situ hybridization test kit of preparing the present embodiment according to ordinary method, this test kit comprises hybridization probe, marker, the specification sheets with miR-378 design, wherein:
The probe mark thing of the present embodiment is selected digoxin.
Test kit hybridization solution forms:
Reagent preparation working concentration
1). by 10 * damping fluid I with tri-distilled water by being diluted to 1 * damping fluid I at 1: 10;
2). by 20 * damping fluid II with tri-distilled water by being diluted to 2 * damping fluid II at 1: 10;
By being diluted to 0.2 * damping fluid II at 1: 100; By being diluted to 0.1 * damping fluid II at 1: 200;
3). by 10 * damping fluid III with tri-distilled water by being diluted to 1 * damping fluid III at 1: 10;
4) .10 * damping fluid IV with tri-distilled water by 1: 10 be diluted to * damping fluid IV (get 1#, 2#, each 10mL of 3#, add water to 100mL both can).
Embodiment 2
The implementation process of application nucleic acid hybridization in situ detection method to each group blood preparation miR-378 expression amount:
1). get two of samples to be measured;
2). in glass jar, add Digestive system (Digestive system 100 μ L add 1 * damping fluid I99.9ml, are working concentration) 50m1,37 ℃ of water-bath preheating 10min, put 16 slides into, process 12min, then use 1 * damping fluid I to wash 5min for 37 ℃;
3). the protection liquid with 0.2% (protection liquid 1ml adds 1 * damping fluid I, and 99ml is working concentration) is washed 10min, and tri-distilled water is washed 5mi n (above process is all carried out at glass jar), takes out slide, allows its seasoning;
4). slide is put into moisture preservation box, add prehybridization solution 25 μ L/ sheets (being added in the place of cell), covered, covers tightly moisture preservation box, is placed in 42 ℃ of constant water bath box more than 3h;
5). take out slide, discard cover glass, slide is put into glass jar, the ethanol with 70%, 90%, 95% is respectively washed 2min, takes out seasoning;
6). slide is put into moisture preservation box, and one adds just hybridization solution 25 μ L/ sheets, and another adds antisense hybridization solution 25 μ L/ sheets, and covered, covers tightly moisture preservation box, is placed on 16-24h in 42 ℃ of constant water bath box;
7). take out slide, discard cover glass, slide is put into glass jar:
In 42 ℃ of constant water bath box, with 2 * damping fluid II, wash twice, each 15min;
In 42 ℃ of constant water bath box, with 0.2 * damping fluid II, wash once each 15min;
In 42 ℃ of constant water bath box, with 0.1 * damping fluid II, wash twice, each 15min;
8). with 1 * damping fluid, III washes 30s, takes out slide, seasoning;
9). slide is put into moisture preservation box, add 0.5% confining liquid (1ml confining liquid adds 5ml1 * damping fluid III), 100 μ L/ sheets, cover tightly moisture preservation box, at room temperature act on 30min.(this step does not need to add cover glass);
10). take out slide, with 1 * damping fluid, III washes 30s, seasoning;
11). slide is put into moisture preservation box, add X-AP antibody and (get a pipe alkaline phosphatase enzyme antibody, add wherein 1.8ml1 * damping fluid III) 100 μ L/ sheets, cover tightly moisture preservation box and at room temperature act on 30min, time can not be long, otherwise can produce false positive (this step does not need to add cover glass);
12). take out slide, with 1 * damping fluid III, wash 3 times, each 15min;
13). with 1 * damping fluid, IV washes 2min, adds developer (developer A73.3 μ L, developer B157.5 μ L is added in 30mL1 * damping fluid IV, mixes), and room temperature lucifuge 16h is to more than 18h;
14). with tri-distilled water, wash 5min, seasoning, (add with glycerine 10% 1 * damping fluid I mix) mounting microscopy.
Nucleic acid hybridization in situ detection method of the present invention is by object miR-378 digoxigenin labeled, become RNA nucleic acid probe, the RNA nucleic acid to be measured of probe and human leukocytes is hybridized, by the method for immunohistochemical methods, develop the color again, therefore in existence and the location of light Microscopic observation RNA, according to the cell count of dyeing, the expression amount of judgement object RNA.
20 of Patients with Gastric Cancer, 20 of high risk population's (chronic atrophic gastritis and stomach have leptospiral infection), 20 of Normal groups.Take out all people's to be checked peripheral blood 3-5 milliliter (separated white corpuscle) and do in situ hybridization.Result represents, all patients with gastric cancer miR-378 expression amounts are very high, and cell dyeing is dark; High risk population expresses slightly and reduces, decimal dyeing; Normal group miR-378 zero expresses, and cell does not dye, and concrete outcome is shown in Fig. 2, Fig. 3, Fig. 4.
Claims (10)
1. a hybridization in situ detection kit, comprises hybridization probe and marker, it is characterized in that, described hybridization probe has respectively sequence total length 66bp shown in sequence table SEQ ID NO:NR_029870.
2. test kit as claimed in claim 1, is characterized in that, described marker is selected from radioactive substance, chemoluminescence or substance that show color, vitamin H, metal king crab, fluorescein, enzyme and nano material.
3. test kit as claimed in claim 1, is characterized in that, this test kit also comprises hybridization solution.
4. test kit as claimed in claim 1, is characterized in that, this test kit also comprises synergistic agent.
5. test kit as claimed in claim 1, is characterized in that, this test kit also comprises developer.
6. an AE1 gene hybridization in situ detection method, is characterized in that, the method comprises the following steps:
(1) at hybridization probe claimed in claim 1 and target sequence, can form under the condition of stablizing hybridization complex, RNA to be measured in substrate is contacted with hybridization probe, form hybridization complex; With
(2) detect described hybridization complex.
7. detection method as claimed in claim 6, is characterized in that, the condition that hybridization complex is stablized in described forming is: the temperature of nucleic acid hybridization is 42 ℃; The time of nucleic acid hybridization is 16-24 hour.
8. detection method as claimed in claim 6, is characterized in that, described substrate choosing is human peripheral blood white corpuscle sample.
9. detection method as claimed in claim 6, is characterized in that, described blood preparation (cancer, high risk population, normal people's sample).
10. detection method as claimed in claim 9, is characterized in that, described in comprise high risk population's cancer of the stomach clinically Pathologic process in early stage, and the recurrence of various cancer after treatment and shift Pathologic process.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201310159214.9A CN104131064A (en) | 2013-05-03 | 2013-05-03 | In-situ hybridization detection kit of miR-378 in early stage of pathologic evolution of gastric cancer, detection method and application |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201310159214.9A CN104131064A (en) | 2013-05-03 | 2013-05-03 | In-situ hybridization detection kit of miR-378 in early stage of pathologic evolution of gastric cancer, detection method and application |
Publications (1)
Publication Number | Publication Date |
---|---|
CN104131064A true CN104131064A (en) | 2014-11-05 |
Family
ID=51803913
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201310159214.9A Pending CN104131064A (en) | 2013-05-03 | 2013-05-03 | In-situ hybridization detection kit of miR-378 in early stage of pathologic evolution of gastric cancer, detection method and application |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN104131064A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109957610A (en) * | 2017-12-14 | 2019-07-02 | 安徽普元生物科技股份有限公司 | MicroRNA 378 (MIR378) nucleic acid quantitative determination reagent kit (PCR- fluorescence probe method) |
-
2013
- 2013-05-03 CN CN201310159214.9A patent/CN104131064A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109957610A (en) * | 2017-12-14 | 2019-07-02 | 安徽普元生物科技股份有限公司 | MicroRNA 378 (MIR378) nucleic acid quantitative determination reagent kit (PCR- fluorescence probe method) |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN102559881A (en) | Messenger ribonucleic acid (mRNA) level in-situ hybridization detection kit for neoplasia early stage of intracranial glioma, and detection method and application | |
CN104131064A (en) | In-situ hybridization detection kit of miR-378 in early stage of pathologic evolution of gastric cancer, detection method and application | |
CN102559887A (en) | Messenger ribonucleic acid (mRNA) level in-situ hybridization detection kit for JAGGED1 in early stage of pathological change of breast cancer bone metastasis, and detection method and application | |
CN104711331A (en) | Cancer pathologic evolution early-stage Gankyrin gene mRNA level in-situ hybridization detection kit, detection method and applications thereof | |
CN104711336A (en) | Solid tumor pathologic evolution early-stage GADD45G gene mRNA level in-situ hybridization detection kit, detection method and applications thereof | |
CN102559884A (en) | LET-7micro ribose nucleic acid (MIRNA) level in-situ hybridization detection kit for pathologic evolution early stage of various cancer, and detection method and application | |
CN102533976A (en) | Kit and method for detecting horizontal in situ hybridization of MICRORNA-21 at the early pathological evolution stage of a variety of cancers and application thereof | |
CN102628078A (en) | MicroRNA-155 level in-situ hybridization detection kit for early stage of various cancer lesions, detection method and application | |
CN104140999A (en) | MRNA level in-situ hybridization detection kit of AE1 gene in earlier stage of pathologic evolution of stomach cancer, detection method and application | |
CN104131065A (en) | In-situ hybridization detection kit of AFPR gene in early stage of pathologic evolution of hepatic carcinoma, detection method and application | |
CN102605056A (en) | In-situ hybridization assay kit for mRNA level of premalignant pancreatic cancer ATDC (telangiectasia group D associated protein) gene as well as assay method and application | |
CN104140998A (en) | In-situ hybridization detection kit of miR-886-3P level in earlier stage of pathologic evolution of small cell lung cancer, detection method and application | |
CN102443647A (en) | In-situ hybridization detection kit for MICRORNA (MICRO Ribonucleic Acid)-145 level at pathologic evolution early stages of various colon cancers as well as microRNA-145 in-situ hybridization detection method and application of microRNA-145 to preparation of in-situ hybridization detection kit for colon cancers | |
CN102605060A (en) | In-situ hybridization assay kit for premalignant lung cancer 14-3-3thta level as well as assay method and application | |
CN102443644A (en) | In-situ hybridization detection kit for MICRORNA (MICRO Ribonucleic Acid)-29A level at pathologic evolution early stage of colon cancer as well as microRNA-29A in-situ hybridization detection method and application of microRNA-29a to preparation of in-situ hybridization detection kit for colon cancer | |
CN102443642A (en) | In-situ hybridization detection kit for MICRORNA (MICRO Ribonucleic Acid)-92A level at pathologic evolution early stage of colon cancer as well as microRNA-92A in-situ hybridization detection method and application of microRNA-92a to preparation of in-situ hybridization detection kit for colon cancer | |
CN104711326A (en) | Multi-cancer pathologic evolution early-stage Bmi1 gene mRNA level in-situ hybridization detection kit, detection method and applications thereof | |
CN104711335A (en) | Cancer metastasis pathologic evolution early-stage HOPX gene mRNA level in-situ hybridization detection kit, detection method and applications thereof | |
CN102443641A (en) | Various early-stage cancer pathology evolution MICRORNA-16 level in situ hybridization detection kit, detection method thereof and application thereof | |
CN102443643A (en) | Kit for assaying MICRORNA-34 level in early stage of pathologic evolution of various cancers through in situ hybridization and assay method and application | |
CN102453768A (en) | In-situ hybridization detection kit for mRNA level in early stage of brain glioma neoplasia, detection method and application | |
CN104711329A (en) | Cancer metastasis pathologic evolution early-stage IDH1 gene mRNA level in-situ hybridization detection kit, detection method and applications thereof | |
CN104711337A (en) | HELQ gene mRNA level in-situ hybridization detection kit, detection method and applications thereof | |
CN104711325A (en) | AGPS gene mRNA level in-situ hybridization detection kit, detection method and applications thereof | |
CN102533983A (en) | Horizontal in-situ hybridization detection kit and detection method as well as application for MICRORNA-330 in earlier stage of cancer pathologic evolution |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
DD01 | Delivery of document by public notice |
Addressee: JIAXING RUIKANG BIOLOGICAL TECHNOLOGY CO., LTD. Document name: Notification of Publication of the Application for Invention |
|
DD01 | Delivery of document by public notice |
Addressee: Jiaxing Ruikang Biological Technology Co., the person in charge of patent Document name: Notification that Application Deemed to be Withdrawn |
|
C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141105 |