WO2023077925A1 - 一种治疗和/或预防癌症的药物和应用 - Google Patents
一种治疗和/或预防癌症的药物和应用 Download PDFInfo
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- WO2023077925A1 WO2023077925A1 PCT/CN2022/114957 CN2022114957W WO2023077925A1 WO 2023077925 A1 WO2023077925 A1 WO 2023077925A1 CN 2022114957 W CN2022114957 W CN 2022114957W WO 2023077925 A1 WO2023077925 A1 WO 2023077925A1
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Definitions
- the Provenge vaccine is also controversial in use because it cannot prolong the patient's disease progression time and is expensive.
- the Phase III clinical trials of the PROSTVAC recombinant viral vector vaccine as well as the MAGE-A3 fusion protein vaccine were terminated due to the lack of clinical benefit to patients in the Phase III clinical trials.
- Cancer vaccines have long been envisioned to be designed to enhance tumor-specific immune responses, especially T cell responses, through active immunization, and serve as a key tool for effective cancer immunotherapy.
- Existence, cancer vaccines yield only modest clinical benefit. Therefore, it is particularly important to break the immune tolerance microenvironment and improve the clinical benefits of vaccines!
- Cancer vaccines can generate an immune response at the tumor site, and vaccine-mediated tumor cell death leads to the release of more cascade antigens.
- the combined application of cancer vaccines and PD-1 antibodies can complement each other, thereby improving tumor killing activity.
- cancer vaccine combined with PD-1 antibody has become one of the current research hotspots. So far, the combination of cancer vaccines and PD-1 antibodies is still in the early stage of research, among which T-VEC combined with pembrolizumab (PD-1 antibody) has been tested in phase I in patients with advanced colon cancer and advanced squamous cell carcinoma of the head and neck.
- the present invention also provides the application of recombinant MBP-MUC1-N fusion protein vaccine combined with anti-PD-1 antibody in the preparation of drugs for preventing and/or treating cancer.
- nucleotide sequence of the MUCl-N gene is shown in SEQ ID NO.1, and the preferred MBP gene is shown in SEQ ID NO.2.
- the present invention also provides the application of the recombinant MBP-MUCl-N fusion protein vaccine combined with oxaliplatin in the preparation of medicaments for preventing and/or treating cancer.
- Figure 1 is the result of the inhibitory effect of the recombinant MBP-MUC1-N fusion protein vaccine provided by the present invention combined with anti-PD-1 antibody on MC38 colon cancer;
- Fig. 3 is the impact result that recombinant MBP-MUC1-N fusion protein vaccine provided by the present invention combined with oxaliplatin produces on the life span of cancerous mice;
- Fig. 5 is the effect of different buffers on the effect of the vaccine in treating MC38 colon cancer.
- the present invention provides a medicine for treating and/or preventing cancer, the medicine comprising recombinant MBP-MUCl-N fusion protein vaccine and anti-PD-1 antibody and/or oxaliplatin combination.
- the present invention has no special limitation on the source of the anti-PD-1 antibody and/or oxaliplatin combination, and conventional commercially available anti-PD-1 antibody and/or oxaliplatin combination can be used.
- nucleotide sequence of the MUC1-N protein is shown in SEQ ID NO.1:
- the nucleotide sequence of the MBP protein is shown in SEQ ID NO.2:
- the fusion protein sequence (SEQ ID NO.3) was KIEEGKLVIWINGDKGYNGLAEVGKKFEKDTGIKVTVEHPDKLEEKFPQVAATGDGPDIIFWAHDRFGGYAQSGLLAEITPDKAFQDKLYPFTWDAVRYNGKLIAYPIAVEALSLIYNKDLLPNPPKTWEEIP ALDKELKAKGKSALMFNLQEPYFTWPLIAADGGYAFKYENGKYDIKDVGVDNAGAKAGLTFLVDLIKNKHMNADTDYSIAEAAFNKGETAMTINGPWAWSNIDTSKVNYGVTVLPTFKGQPSKPFVGVLSAGINAASPNKELAKEFLENYLLTDEGLEAVNKDKPLGAVALKSYEEELVKDP RIAATMENAQKGEIMPNIPQMSAFWYAVRTAVINAASGRQTVDEALKDAQTNSSNNNNNNNNLGIEGRISGVTSAPDDTRPAPGST
- Tandem synthesis was carried out according to the gene sequence of MBP and Muc1-N fusion protein. To this end, first synthesize 1a_1, 1a_2, 1a_3, 1a_4, 1a_5, 1a_6, 1a_7, 1a_8, 1a_9, 1a_10, 1a_11, 1a_12, 1a_13, 1a_14, 1a_15, 1a_16, 1a_17, 1a_18, 1a_19, 1a_20, 1a_21, 1 a_22, 1a_23 , 1a_24, 1a_25, 1a_26, 1a_27, 1a_28, 1a_29, 1a_30 oligonucleotide sequences, then synthesize 1b_1, 1b_2, 1b_3, 1b_4 sequences, use 1-seq2, 1-R sequences for gene amplification, and obtain MUC1-N fusion MBP optimized gene sequence.
- a drug for treating and/or preventing cancer and its application according to the present invention will be further described in detail below in conjunction with specific examples.
- the technical solutions of the present invention include but are not limited to the following examples.
- Example 1 Treatment of MC38 colon cancer in combination with PD-1 antibody
- the recombinant MBP-MUC1-N fusion protein was prepared using the method of this application, and prepared by conventional vaccine preparation methods.
- the anti-PD-1 antibody was purchased from Shanghai Junshi Biomedical Technology Co., Ltd.; MC38 colon cancer cells were purchased from the National Experimental Cell Resource Center; normal saline for injection was purchased from Beijing Tiantan Biological Products Co., Ltd.
- the muscle was immunized with the recombinant MBP-MUC1-N fusion protein vaccine preparation.
- Anti-PD-1 antibody injection dose 250 ⁇ g/monkey (diluted with NS, total 500 ⁇ l/bird).
- Combined administration of recombinant MBP-MUC1-N fusion protein vaccine and oxaliplatin can more effectively inhibit the growth of MC38 colon cancer tumors, and can improve the tumor cure rate, reaching the highest cure rate.
- Experimental reagents use the method of this application to recombine MBP-MUC1-N fusion protein expression strains.
- Anti-PD-1 antibody was purchased from Bioxcell; MC38 colon cancer cells were purchased from National Experimental Cell Resource Center; saline injection was purchased from Beijing Tiantan Biological Products Co., Ltd.
- Bacteria-breaking solution 20ml, sterilized in an ultrasonic ice bath, sterile filtered after high-speed low-temperature centrifugation, and placed at 4°C for 0, 3, 6, and 24 hours. The results showed that the total amount of protein reached 100%, 86%, 75% and 56% of 0 hour respectively.
- the recombinant MBP-MUC1-N fusion protein vaccine preparation was immunized with a dose of 50 ⁇ g/monkey (100 ⁇ l in total), and the immune checkpoint inhibitor anti-PD-1 was injected intraperitoneally.
- Antibody the injection dose is 200 ⁇ g/monkey (total amount 100 ⁇ l/bird).
- buffer salts include 20mM acetic acid-sodium acetate (pH5.0), 150mMNaCl, referred to as Ac5.0 group; 20mM acetic acid-sodium acetate (pH7.3), 150mM NaCl, referred to as Ac7.3 group; 20mM Tris salt (pH7.3), 150mM NaCl, referred to as Tris7.3 group.
- PBS was purchased from Beijing Tiantan Biological Products Co., Ltd.
- the tumors shrank significantly at 2, 4, 6, and 8 days after injection of Tris7.3 vaccine. Respectively shrink from 1.28 ⁇ 0.44cm3 to 0.51 ⁇ 0.19m3, from 1.94 ⁇ 0.44cm3 to 1.12 ⁇ 0.48cm3, from 2.53 ⁇ 1.20cm3 to 1.40 ⁇ 0.52cm3, from 3.02 ⁇ 0.80cm3 to 1.98 ⁇ 0.83cm3.
- the p-values are 0.0002, 0.0009, 0.018, 0.011, respectively, and there are significant differences.
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Abstract
Description
Claims (17)
- 一种治疗和/或预防癌症的药物,其特征在于,所述药物包括重组MBP-MUC1-N融合蛋白疫苗和抗PD-1抗体。
- 根据权利要求1所述的药物,其特征在于,所述重组MBP-MUC1-N融合蛋白疫苗含有麦芽糖结合蛋白MBP基因和人黏蛋白MUC1-N基因串联而成,其中优选MUC1-N基因的核苷酸序列如SEQ ID NO.1所示,优选MBP基因如SEQ ID NO.2所示。
- 根据权利要求1所述的药物,其特征在于,所述癌症包括所有表达MUC1的癌症,包括表达MUC1的腺癌或表达MUC1的血液肿瘤,优选结直肠癌或结肠癌。
- 重组MBP-MUC1-N融合蛋白疫苗联合抗PD-1抗体在制备预防和/或治疗癌症的药物中的应用。
- 根据权利要求4所述的应用,其特征在于,所述重组MBP-MUC1-N融合蛋白疫苗含有麦芽糖结合蛋白MBP基因和人黏蛋白MUC1-N基因串联而成,其中优选MUC1-N基因的核苷酸序列如SEQ ID NO.1所示,优选MBP基因如SEQ ID NO.2所示,优选所述癌症包括所有表达MUC1的癌症,包括表达MUC1的腺癌或表达MUC1的血液肿瘤,更优选结直肠癌或结肠癌。
- 一种治疗和/或预防癌症的药物,其特征在于,所述药物包括重组MBP-MUC1-N融合蛋白疫苗和奥沙利铂。
- 根据权利要求6所述的药物,其特征在于,所述重组MBP-MUC1-N融合蛋白疫苗含有麦芽糖结合蛋白MBP基因和黏蛋白MUC1-N基因串联而成,其中优选MUC1-N基因的核苷酸序列如SEQ ID NO.1所示,优选MBP基因如SEQ ID NO.2所示,优选,所述癌症包括所有表达MUC1的癌症,包括表达MUC1的腺癌或表达MUC1的血液肿瘤,更优选结直肠癌或结肠癌。
- 重组MBP-MUC1-N融合蛋白疫苗联合奥沙利铂在制备预防和/或治疗癌症的药物中的应用。
- 重组MBP-MUC1-N融合蛋白疫苗联合奥沙利铂在制备延迟癌症患者的药物中的应用。
- 根据权利要求8或9所述的应用,其特征在于,所述重组MBP-MUC1-N融合蛋白疫苗含有麦芽糖结合蛋白MBP基因和人黏蛋白MUC1-N基因串联而成,其中优选MUC1-N基因的核苷酸序列如SEQ ID NO.1所示,优选MBP基因如SEQ ID NO.2所示,优选所述癌症包括所有表达MUC1的癌症,包括表达MUC1的腺癌或表达MUC1的血液肿瘤,更优选结 直肠癌或结肠癌。
- 一种治疗和/或预防癌症的组合物,其特征在于,所述药物包括重组MBP-MUC1-N融合蛋白疫苗和缓冲体系,所述缓冲体系包括Tris盐和NaCl。
- 根据权利要求11所述的治疗和/或预防癌症的组合物,所述缓冲体系包括20mM Tris盐,150mM NaCl,其pH为7.3。
- 根据权利要求11-12任一项所述的治疗和/或预防癌症的组合物,所述重组MBP-MUC1-N融合蛋白疫苗含有麦芽糖结合蛋白MBP基因和人黏蛋白MUC1-N基因串联而成,其中优选MUC1-N基因的核苷酸序列如SEQ ID NO.1所示,优选MBP基因如SEQ ID NO.2所示。
- 根据权利要求11-13任一项所述的治疗和/或预防癌症的组合物,优选所述癌症包括所有表达MUC1的癌症,包括表达MUC1的腺癌或表达MUC1的血液肿瘤,更优选直肠癌或结肠癌。
- 如权利要求11-14任一项所述的组合物在制备治疗和/或预防癌症药物中的应用,优选所述癌症包括所有表达MUC1的癌症,包括表达MUC1的腺癌或表达MUC1的血液肿瘤,更优选直肠癌或结肠癌。
- MBP-MUC1-N融合蛋白疫苗在制备治疗和/或预防癌症药物中的应用,所述癌症为直肠癌或结肠癌,所述融合蛋白的序列如SEQ ID NO.3所示。
- 如权利要求16所述的应用,所述重组MBP-MUC1-N融合蛋白疫苗含有麦芽糖结合蛋白MBP基因和人黏蛋白MUC1-N基因串联而成,其中优选MUC1-N基因的核苷酸序列如SEQ ID NO.1所示,优选MBP基因如SEQ ID NO.2所示。
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CN116059339A (zh) | 2023-05-05 |
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