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CN101045915A - Oocyte germinal vecicle transplanting technology - Google Patents

Oocyte germinal vecicle transplanting technology Download PDF

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Publication number
CN101045915A
CN101045915A CNA2006100709884A CN200610070988A CN101045915A CN 101045915 A CN101045915 A CN 101045915A CN A2006100709884 A CNA2006100709884 A CN A2006100709884A CN 200610070988 A CN200610070988 A CN 200610070988A CN 101045915 A CN101045915 A CN 101045915A
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CN
China
Prior art keywords
germinal vesicle
ovocyte
technology
zona pellucida
nuclear transfer
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
Application number
CNA2006100709884A
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Chinese (zh)
Inventor
旭日干
邵华
茫烈
王玲玲
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XURIGAN
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XURIGAN
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by XURIGAN filed Critical XURIGAN
Priority to CNA2006100709884A priority Critical patent/CN101045915A/en
Publication of CN101045915A publication Critical patent/CN101045915A/en
Pending legal-status Critical Current

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Abstract

The present invention is technology of transplanting oocyte germinal vesicle with zona pellucida eliminated, and belongs to the field of bioengineering technology. The present invention eliminates zona pellucida from oocyte to facilitate microscope operation. The technology of the present invention can reach the aim of transplanting oocyte germinal vesicle and make germinal vesicle transplanting high in efficiency, low in cost and simple.

Description

A kind of ovocyte germinal vesicle nuclear transfer technology
The invention belongs to biotechnology, particularly the experiment research of biology and medical science and clinical application.
Germinal vesicle nuclear transfer is a kind of technology of just setting up recent years, this technology is widely used in setting up interactional cell model between nucleus and the tenuigenin, and research, the especially latter and the human reproduction's health of getting in touch etc. further inquired between ovocyte matter and the ovocyte dysploidy are closely bound up.Utilize the germinal vesicle nuclear transfer technology can reduce women's at advanced age (more than 40 years old) fertility risk, reach the purpose of prenatal and postnatal care.Germinal vesicle nuclear transfer mainly is meant and takes out the cytosome (Cytoplast) (this cytosome comprises the GV phase ovocyte of stoning, MII phase ovocyte and zygote) of the nucleome (Karyoplast) that forms and stoning gained by micrurgy and merge the process that forms recombinant eggs being in the germinal vesicle of ovocyte in germinal vesicle period and small amounts of cells matter.The present invention further simplifies the germinal vesicle nuclear transfer technology, utilizes zona pellucida to remove combining of art and germinal vesicle nuclear transfer art, makes the germinal vesicle nuclear transfer technology that previous efficient is low, cost is high, difficulty is big that new breakthrough arranged.The learning time that can make the tyro is from the time decreased to 1 of previous some months day.
The objective of the invention is: utilize zona pellucida to remove art and combine, make that the situation that the germinal vesicle nuclear transfer technology is low from previous efficient, cost is high, difficulty is big is converted into efficiently, low-cost, easy novel germinal vesicle nuclear transfer technology with the germinal vesicle nuclear transfer technology.The learning time that particularly can make the tyro is from the time decreased to 1 of previous some months day.
Content of the present invention is: the disadvantage of current germinal vesicle nuclear transfer technology is exactly that efficient is low, and the cost height is high to trier's state of the art requirement.We adopt zona pellucida to remove art and make ovocyte be more convenient for operating in whole process, reduced operating process, have reduced operation easier, have improved working efficiency.Zona pellucida is removed art apply to germinal vesicle nuclear transfer, make this technology become efficient, with low cost, experimenter's technical background is not had specific requirement.Thereby make the germinal vesicle nuclear transfer technology need highly difficult technical change that the professional person operates for simply being applicable to general personnel's routine techniques by original.
(1) uses the PRONASE A of 0.1-1.0% or the zona pellucida that ovocyte is removed in T acid.
(2) will go the ovocyte of zona pellucida in the nutrient solution that contains 5 μ g/ml-25 μ g/ml cytochalasin Bs and IBMX or dbcAMP, to handle for some time, carry out micrurgy to take out germinal vesicle producing the ovocyte that recovers again after the distortion.
(3) germinal vesicle that will remove the cytosome of germinal vesicle and consubstantiality or allosome carries out bondingly in the nutrient solution of the PHA that contains 10 μ g/ml-100 μ g/ml, then carries out electricity and merges.
(4) select the reconstruct ovum of fusion fully to carry out the maturation in vitro cultivation, observe polar body after 12 hours and discharge situation.
(5) ovocyte that will discharge polar body carries out the micrurgy second time to obtain the nuclear district, and this is examined the district carry out bonding and electric fusion with the cytosome of the MII phase ovocyte of removing the nuclear district of cylinder mature, reconstruct ovum after the fusion activates processing external, is transferred to nutrient solution subsequently and grows cultivation.The embryo in resulting each period can select transplanting or biology of being correlated with or medical experiment research in the organism
Advantage of the present invention and positively effect
1, the present invention is because the zona pellucida of the ovum that adopts all is removed, so do not need to carry out special zona oepning, ovum need not carry out 2 hours cultivation to wait for the formation in ovum week crack external yet simultaneously.And current current germinal vesicle nuclear transfer technology must be with ovum in vitro culture more than at least 2 hours, has only the opening that occurs could being undertaken by county's micro-operation during the crack in ovum week zona pellucida when ovocyte.Therefore, the present invention has not only shortened experimental period but also has reduced the bigger micrurgy of a step difficulty, has improved conventional efficient.
2, the ovum pin of holding used in the present invention is held the ovum pin for remaining silent, and can make operator not need control to hold the ovum pin like this.Current current germinal vesicle nuclear transfer technical requirements operator control simultaneously and hold ovum pin and kernel removing needle.Therefore, the present invention has simplified operating process, has reduced operation easier, has improved operation efficiency.
3, the germinal vesicle nuclear transfer technology comprises the micrurgy of two different times.Therefore, the present invention has reduced operation easier on the whole, has improved working efficiency.
4, utilize the zona pellucida ovocyte germinal vesicle nuclear transfer technology of going, can so that the germinal vesicle nuclear transfer technology from before poor efficiency, expensively be converted into efficiently, new technique scheme cheaply.So just improved the popularization of ovocyte germinal vesicle nuclear transfer technology widely, thereby be relevant research, for example: the generation of the chromosomal aneuploidy that mutual relationship and advanced age are occurred in women's oocyte maturation process between the nucleus of oocyte maturation and the tenuigenin and advanced age the women artificial fertility established solid basis.
5, utilize ovocyte to go zona pellucida germinal vesicle nuclear transfer technology, new research thinking can also be provided for nuclear transfer technology from now on, promptly in conjunction with the micrurgy of going the zona pellucida technology.
In sum, go zona pellucida ovocyte germinal vesicle nuclear transfer technology as a new technology have easy to learn, save time, laborsaving, good effectiveness.

Claims (6)

1, use PRONASE A or T acid to remove the zona pellucida of ovocyte.
2, the concentration of pronase is 0.1-1.0% according to claim 1.
3, the ovocyte that will remove zona pellucida is handled for some time in the operation liquid of cytochalasin B and IBMX or dbcAMP, carries out micrurgy to producing the ovocyte that recovers again after the distortion.
4, the concentration as cytochalasin B as described in the claim 3 is 5 μ g/ml-50 μ g/ml, and the concentration of IBMX or dbcAMP is 10-100 μ g/ml.
5, will remove the cytosome of germinal vesicle and the germinal vesicle of consubstantiality or allosome carries out bonding in containing the nutrient solution of PHA.
6, the concentration as PHA as described in the claim 5 is 10 μ g/ml-100 μ g/ml.
CNA2006100709884A 2006-03-29 2006-03-29 Oocyte germinal vecicle transplanting technology Pending CN101045915A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNA2006100709884A CN101045915A (en) 2006-03-29 2006-03-29 Oocyte germinal vecicle transplanting technology

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNA2006100709884A CN101045915A (en) 2006-03-29 2006-03-29 Oocyte germinal vecicle transplanting technology

Publications (1)

Publication Number Publication Date
CN101045915A true CN101045915A (en) 2007-10-03

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Family Applications (1)

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CNA2006100709884A Pending CN101045915A (en) 2006-03-29 2006-03-29 Oocyte germinal vecicle transplanting technology

Country Status (1)

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CN (1) CN101045915A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102766655A (en) * 2012-06-20 2012-11-07 中国农业科学院北京畜牧兽医研究所 Method for producing somatic cell cloned bovine blastocyst
US9938500B2 (en) 2006-04-14 2018-04-10 Astellas Institute For Regenerative Medicine Hemangio-colony forming cells
US9988602B2 (en) 2008-05-06 2018-06-05 Astellas Institute For Regenerative Medicine Methods for producing enucleated erythroid cells derived from pluripotent stem cells
CN111004775A (en) * 2020-01-08 2020-04-14 中国医学科学院医学生物学研究所 Method for physically removing oocyte zona pellucida
US10894065B2 (en) 2012-12-21 2021-01-19 Astellas Institute For Regenerative Medicine Methods for production of platelets from pluripotent stem cells and compositions thereof
US12097223B2 (en) 2011-11-30 2024-09-24 Astellas Institute For Regenerative Medicine Mesenchymal stromal cells and uses related thereto
US12209255B2 (en) 2012-07-12 2025-01-28 Astellas Institute For Regenerative Medicine Mesenchymal-like stem cells derived from human embryonic stem cells, methods and uses thereof

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9938500B2 (en) 2006-04-14 2018-04-10 Astellas Institute For Regenerative Medicine Hemangio-colony forming cells
US11566228B2 (en) 2006-04-14 2023-01-31 Astellas Institute For Regenerative Medicine Hemangio-colony forming cells
US9988602B2 (en) 2008-05-06 2018-06-05 Astellas Institute For Regenerative Medicine Methods for producing enucleated erythroid cells derived from pluripotent stem cells
US12097223B2 (en) 2011-11-30 2024-09-24 Astellas Institute For Regenerative Medicine Mesenchymal stromal cells and uses related thereto
CN102766655A (en) * 2012-06-20 2012-11-07 中国农业科学院北京畜牧兽医研究所 Method for producing somatic cell cloned bovine blastocyst
US12209255B2 (en) 2012-07-12 2025-01-28 Astellas Institute For Regenerative Medicine Mesenchymal-like stem cells derived from human embryonic stem cells, methods and uses thereof
US10894065B2 (en) 2012-12-21 2021-01-19 Astellas Institute For Regenerative Medicine Methods for production of platelets from pluripotent stem cells and compositions thereof
US11400118B2 (en) 2012-12-21 2022-08-02 Astellas Institute For Regenerative Medicine Methods for production of platelets from pluripotent stem cells and compositions thereof
US12076347B2 (en) 2012-12-21 2024-09-03 Astellas Institute For Regenerative Medicine Methods for production of platelets from pluripotent stem cells and compositions thereof
US12109239B2 (en) 2012-12-21 2024-10-08 Astellas Institute For Regenerative Medicine Methods for production of human hemogenic endothelial cells from pluripotent stem cells and compositions thereof
CN111004775A (en) * 2020-01-08 2020-04-14 中国医学科学院医学生物学研究所 Method for physically removing oocyte zona pellucida
CN111004775B (en) * 2020-01-08 2023-05-02 中国医学科学院医学生物学研究所 Method for physically removing oocyte zona pellucida

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