CN107400168B - 一种基于cd117的嵌合抗原受体及其应用 - Google Patents

一种基于cd117的嵌合抗原受体及其应用 Download PDF

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CN107400168B
CN107400168B CN201710587317.3A CN201710587317A CN107400168B CN 107400168 B CN107400168 B CN 107400168B CN 201710587317 A CN201710587317 A CN 201710587317A CN 107400168 B CN107400168 B CN 107400168B
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桂思倩
刘昱辰
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Shenzhen Institute Of Immune Gene Therapy
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Abstract

本发明涉及一种基于CD117的嵌合抗原受体及其应用,具体为以肿瘤特异靶点CD117为基础的嵌合抗原受体T(CAR‑T)细胞技术的构建方法及其在抗肿瘤治疗中的应用,所述嵌合抗原受体包括抗原结合结构域、跨膜结构域、共刺激信号传导区和CD3ζ信号传导结构域串联而成;其中,所述抗原结合结构域结合肿瘤表面抗原,所述肿瘤表面抗原为CD117。本发明的嵌合抗原受体通过对CD117肿瘤表面抗原进行特定的基因改造,改造后的抗体能够使抗原‑抗体结合力更强,不容易发生突变,且相比于其他嵌合抗原受体和其他肿瘤抗原有更好的效果,靶点的表达量高,使得CAR‑T细胞的免疫效果增强,增强了CAR‑T细胞的治疗效果。

Description

一种基于CD117的嵌合抗原受体及其应用
技术领域
本发明涉及肿瘤的细胞免疫治疗领域,尤其涉及一种基于CD117的嵌合抗原受体及其应用,具体为以肿瘤特异靶点CD117为基础的嵌合抗原受体T(CAR-T)细胞技术的构建方法及其在抗肿瘤治疗中的应用。
背景技术
随着肿瘤免疫学理论和临床技术的发展,嵌合抗原受体T细胞疗法(Chimericantigen receptor T-cell immunotherapy,CAR-T)成为目前最有发展前景的肿瘤免疫疗法之一。一般,嵌合抗原受体CAR由一个肿瘤相关抗原结合区、胞外铰链区、跨膜区域以及胞内信号转导区组成。通常,CAR包含抗体的单链片段可变(Single chain fragmentvariable,scFv)区或对肿瘤相关抗原(tumor associated antigen,TAA)具有特异性的结合结构域,其通过铰链和跨膜区与T细胞信号传导分子的胞质结构域偶联。最常见的淋巴细胞活化部分包括与T细胞效应物功能触发(例如CD3ζ)部分串联的T细胞共刺激结构域。CAR介导的过继性免疫疗法允许CAR-移植的T细胞以非HLA限制性方式直接识别靶肿瘤细胞上的TAA。
大多数患有B细胞恶性肿瘤(包括B细胞急性淋巴细胞性白血病(B cell acutelymphocytic leukemia,leukemia,B-ALL)和慢性淋巴细胞性白血病(chroniclymphocytic leukemia,CLL))的患者将由于其疾病而死亡。治疗这些患者的一种方法是通过CAR的表达,对T细胞进行遗传修饰以靶向在肿瘤细胞上表达的抗原。CAR是经设计以人白细胞抗原(human leukocyte antigen,HLA)非依赖性方式识别细胞表面抗原的抗原受体。尝试使用表达CAR的遗传修饰细胞来治疗这些类型的患者已经取得了有前景的成功。
CD19分子是治疗B淋巴细胞系肿瘤潜在的靶点,也是CAR研究中的热点,CD19的表达局限于正常和恶性B细胞,是广泛接受的用来安全测试的CAR靶标。靶向CD19分子的嵌合抗原受体基因修饰的T细胞(CD19CAR-T)在治疗多发性、难治性的急性B淋巴细胞白血病上取得巨大成功,而在难治性、复发性慢性B淋巴细胞白血病和B淋巴细胞系淋巴瘤的治疗中疗效明显较差。
CN 104788573A公开了了一种嵌合抗原受体hCD19scFv-CD8α-CD28-CD3ζ及其用途,该嵌合抗原受体由抗人CD19单克隆抗体HI19a轻链和重链可变区(hCD19scFv)、人CD8α铰链区、人CD28跨膜区和胞内区、以及人CD3ζ胞内区结构串联构成,该专利中的CD19在进行一次CAR-T细胞回输后,CD19的表达量会降低,容易逃过免疫机制。
因此,制备一种嵌合抗原受体能够解决CD19存在的易突变和表达量降低的问题显得尤为重要。
发明内容
针对目前CAR-T技术治疗肿瘤中靶向不十分理想,以及肿瘤微环境影响CAR-T技术治疗效果的情况,本发明提供一种基于CD117的嵌合抗原受体及其应用,本发明制备的嵌合抗原受体通过将CD117靶点进行基因改造,从而提高了靶点的免疫效果,增强了CAR-T细胞的治疗效果。
为达此目的,本发明采用以下技术方案:
一方面,本发明提供一种基于CD117的嵌合抗原受体,所述嵌合抗原受体包括抗原结合结构域、跨膜结构域、共刺激信号传导区和CD3ζ信号传导结构域串联而成;
其中,所述抗原结合结构域结合肿瘤表面抗原,所述肿瘤表面抗原为CD117。
本发明中,通过将抗原结合结构域结合肿瘤表面抗原CD117,再通过对CD117嵌合抗原受体进行特定的人源基因码优化改造,从而使得肿瘤表面抗原CD117能够特异的结合在本申请的嵌合抗原受体上,且相比于其他嵌合抗原受体和其他肿瘤抗原有更好的效果,靶点的表达量高,使得CAR-T细胞的免疫效果增强。
根据本发明,所述CD117嵌合抗原受体的单链抗体(ScFv)氨基酸序列如SEQ IDNO.1所示,所述CD117嵌合抗原受体的单链抗体(ScFv)氨基酸序列(SEQ ID NO.1)如下:
QVQLVQSGAAVKKPGESLKISCKGSGYRFTSYWIGWVRQMPGKGLEWMGIIYPGDSDTRYSPSFQGQVTISAGKSISTAYLQWSSLKASDTAMYYCARHGRGYNGYEGAFDIWGQGTMVTVSSGSTSGSGKPGSSEGSTKGAIQLTQSPSSLSASVGDRVTITCRASQGISSALAWYQQKPGKAPKLLIYDASSLESGVPSRFSGSGSGTDFTLTISSLQPEDFATYYCQQFNSYPLTFGGGTKVEIK。
本发明中,所述CD117嵌合抗原受体的单链抗体(ScFv)的氨基酸进行了特异性改造,使得改造后的序列表达出来的抗体的抗原-抗体结合力更强。
根据本发明,所述肿瘤表面抗原CD117还包括肿瘤表面抗原CD117的突变体的单链抗体,所述肿瘤表面抗原CD117的突变体的单链抗体的氨基酸序列与SEQ ID NO.1所示的氨基酸序列有90%以上的相似度。
根据本发明,所述跨膜结构域为CD28跨膜结构域和/或CD8α跨膜结构域,在一些具体实施方案中,可以通过氨基酸替换来选择或修饰跨膜结构域。
根据本发明,所述共刺激信号传导区为CD28信号传导结构域、CD27信号传导结构域和CD137信号传导结构域中的任意一种或至少两种的组合,优选为CD28信号传导结构域、CD137信号传导结构域和CD27信号传导结构域的组合,所述CD28信号传导结构域、CD137信号传导结构域和/或CD27信号传导结构域的排列,本领域技术人员可以根据需要进行调整,CD28信号传导结构域、CD137信号传导结构域和CD27信号传导结构域不同的排列不会对所述嵌合抗原受体产生影响,本申请优选采用CD28-CD137-CD27的顺序组合。
根据本发明,所述嵌合抗原受体还包括可诱导自杀融合结构域,所述可诱导自杀融合结构域为包含胱天蛋白酶9结构域,所述胱天蛋白酶9结构域的氨基酸序列如SEQ IDNO.4所示,所述胱天蛋白酶9结构域的氨基酸序列(SEQ ID NO.4)如下:
GSGATNFSLLKQAGDVEENPGPMGVQVETISPGDGRTFPKRGQTCVVHYTGMLEDGKKVDSSRDRNKPFKFMLGKQEVIRGWEEGVAQMSVGQRAKLTISPDYAYGATGHPGIIPPHATLVFDVELLKLEGGGGSGGGGSGAMVGALESLRGNADLAYILSMEPCGHCLIINNVNFCRESGLRTRTGSNIDCEKLRRRFSSLHFMVEVKGDLTAKKMVLALLELARQDHGALDCCVVVILSHGCQASHLQFPGAVYGTDGCPVSVEKIVNIFNGTSCPSLGGKPKLFFIQACGGEQKDHGFEVASTSPEDESPGSNPEPDATPFQEGLRTFDQLDAISSLPTPSDIFVSYSTFPGFVSWRDPKSGSWYVETLDDIFEQWAHSEDLQSLLLRVANAVSVKGIYKQMPGCFNFLRKKLFFKTSAS.
根据本发明,所述可诱导自杀融合结构域通过2A序列与CD3ζ信号传导结构域相串联,所述2A序列会使所述可诱导自杀融合结构域表达的蛋白与所述嵌合抗原受体蛋白断裂开,从而使得所述嵌合抗原受体能够发挥作用,而通过注入激活剂,从而使得可诱导自杀融合结构域激活,从而导致嵌合抗原受体失去作用。
根据本发明,所述嵌合抗原受体还包括信号肽,所述信号肽为能够指导嵌合抗原受体跨膜转移的信号肽,本领域技术人员可以根据需要选择本领域常规的信号肽,所述信号肽可以为任何一个分泌蛋白基因的信号肽,本发明所述信号肽为Secretory信号肽,所述Secretory信号肽的氨基酸序列如SEQ ID NO.5-6所示。
优选地,所述Secretory信号肽为CD8a基因的信号肽,所述信号肽氨基酸序列如SEQ ID NO.5所示,所述SEQ ID NO.5所述的氨基酸序列如下:MALPVTALLLPLALLLHAARP.
优选地,所述Secretory信号肽为GMCSFR基因的信号肽,所述信号肽氨基酸序列如SEQ ID NO.6所示,所述SEQ ID NO.6所述的氨基酸序列如下:MLLLVTSLLLCELPHPAFLLIP.
本发明的嵌合抗原受体还可以包括铰链区,所述铰链区本领域技术人员可以根据实际情况进行选择,在此不做特殊限定,铰链区的存在不会对本发明的嵌合抗原受体的性能产生影响。
根据本发明,所述嵌合抗原受体包括信号肽、抗原结合结构域、跨膜结构域、共刺激信号传导区、CD3ζ信号传导结构域、2A序列和可诱导自杀融合结构域串联而成。
作为优选技术方案,所述嵌合抗原受体为Secretory信号肽、CD117抗原结合结构域,CD8α和/或CD28跨膜结构域,CD28信号传导结构域、CD137信号传导结构域和CD27信号传导结构域,CD3ζ信号传导结构域、2A序列和胱天蛋白酶9结构域串联而成,具体排列如下:
Secretory-CD117-CD28-CD137-CD27-CD3ζ-2A-iCasp9。
根据本发明,所述嵌合抗原受体Secretory-CD117-CD28-CD137-CD27-CD3ζ-2A-iCasp9的氨基酸序列如SEQ ID NO.2所示,所述嵌合抗原受体的氨基酸序列(SEQ ID NO.2)如下:
MLLLVTSLLLCELPHPAFLLIPQVQLVQSGAAVKKPGESLKISCKGSGYRFTSYWIGWVRQMPGKGLEWMGIIYPGDSDTRYSPSFQGQVTISAGKSISTAYLQWSSLKASDTAMYYCARHGRGYNGYEGAFDIWGQGTMVTVSSGSTSGSGKPGSSEGSTKGAIQLTQSPSSLSASVGDRVTITCRASQGISSALAWYQQKPGKAPKLLIYDASSLESGVPSRFSGSGSGTDFTLTISSLQPEDFATYYCQQFNSYPLTFGGGTKVEIKAAAIEVMYPPPYLDNEKSNGTIIHVKGKHLCPSPLFPGPSKPFWVLVVVGGVLACYSLLVTVAFIIFWVRSKRSRLLHSDYMNMTPRRPGPTRKHYQPYAPPRDFAAYRSASGGGGSGGGGSQRRKYRSNKGESPVEPAEPCHYSCPREEEGSTIPIQEDYRKPEPACSPGGGGSGGGGSTSGGGGSGGGGSVVKRGRKKLLYIFKQPFMRPVQTTQEEDGCSCRFPEEEEGGCELGGGGSGGGGSGGGGSRVKFSRSADAPAYQQGQNQLYNELNLGRREEYDVLDKRRGRDPEMGGKPRRKNPQEGLYNELQKDKMAEAYSEIGMKGERRRGKGHDGLYQGLSTATKDTYDALHMQALPPRTSGSGATNFSLLKQAGDVEENPGPMGVQVETISPGDGRTFPKRGQTCVVHYTGMLEDGKKVDSSRDRNKPFKFMLGKQEVIRGWEEGVAQMSVGQRAKLTISPDYAYGATGHPGIIPPHATLVFDVELLKLEGGGGSGGGGSGAMVGALESLRGNADLAYILSMEPCGHCLIINNVNFCRESGLRTRTGSNIDCEKLRRRFSSLHFMVEVKGDLTAKKMVLALLELARQDHGALDCCVVVILSHGCQASHLQFPGAVYGTDGCPVSVEKIVNIFNGTSCPSLGGKPKLFFIQACGGEQKDHGFEVASTSPEDESPGSNPEPDATPFQEGLRTFDQLDAISSLPTPSDIFVSYSTFPGFVSWRDPKSGSWYVETLDDIFEQWAHSEDLQSLLLRVANAVSVKGIYKQMPGCFNFLRKKLFFKTSAS.
根据本发明,所述嵌合抗原受体Secretory-CD117-CD28-CD137-CD27-CD3ζ-2A-iCasp9的核苷酸序列如SEQ ID NO.3所示,所述嵌合抗原受体的核苷酸序列(SEQ ID NO.3)如下:
ATGCTGCTGCTGGTGACCAGCCTGCTGCTGTGCGAGCTGCCCCACCCCGCCTTCCTGCTGATCCCCCAGGTGCAGCTGGTGCAGAGCGGCGCCGCCGTGAAGAAGCCCGGCGAGAGCCTGAAGATCAGCTGCAAGGGCAGCGGCTACAGATTCACCAGCTACTGGATCGGCTGGGTGAGACAGATGCCCGGCAAGGGCCTGGAGTGGATGGGCATCATCTACCCCGGCGACAGCGACACCAGATACAGCCCCAGCTTCCAGGGCCAGGTGACCATCAGCGCCGGCAAGAGCATCAGCACCGCCTACCTGCAGTGGAGCAGCCTGAAGGCCAGCGACACCGCCATGTACTACTGCGCCAGACACGGCAGAGGCTACAACGGCTACGAGGGCGCCTTCGACATCTGGGGCCAGGGCACCATGGTGACCGTGAGCAGCGGCAGCACCAGCGGCAGCGGCAAGCCCGGCAGCAGCGAGGGCAGCACCAAGGGCGCCATCCAGCTGACCCAGAGCCCCAGCAGCCTGAGCGCCAGCGTGGGCGACAGAGTGACCATCACCTGCAGAGCCAGCCAGGGCATCAGCAGCGCCCTGGCCTGGTACCAGCAGAAGCCCGGCAAGGCCCCCAAGCTGCTGATCTACGACGCCAGCAGCCTGGAGAGCGGCGTGCCCAGCAGATTCAGCGGCAGCGGCAGCGGCACCGACTTCACCCTGACCATCAGCAGCCTGCAGCCCGAGGACTTCGCCACCTACTACTGCCAGCAGTTCAACAGCTACCCCCTGACCTTCGGCGGCGGCACCAAGGTGGAGATCAAGGCCGCCGCCATCGAGGTGATGTACCCCCCCCCCTACCTGGACAACGAGAAGAGCAACGGCACCATCATCCACGTGAAGGGCAAGCACCTGTGCCCCAGCCCCCTGTTCCCCGGCCCCAGCAAGCCCTTCTGGGTGCTGGTGGTGGTGGGCGGCGTGCTGGCCTGCTACAGCCTGCTGGTGACCGTGGCCTTCATCATCTTCTGGGTGAGAAGCAAGAGAAGCAGACTGCTGCACAGCGACTACATGAACATGACCCCCAGAAGACCCGGCCCCACCAGAAAGCACTACCAGCCCTACGCCCCCCCCAGAGACTTCGCCGCCTACAGAAGCGCCAGCGGCGGCGGCGGCAGCGGCGGCGGCGGCAGCCAGAGAAGAAAGTACAGAAGCAACAAGGGCGAGAGCCCCGTGGAGCCCGCCGAGCCCTGCCACTACAGCTGCCCCAGAGAGGAGGAGGGCAGCACCATCCCCATCCAGGAGGACTACAGAAAGCCCGAGCCCGCCTGCAGCCCCGGCGGCGGCGGCAGCGGCGGCGGCGGCAGCACCAGCGGCGGCGGCGGCAGCGGCGGCGGCGGCAGCGTGGTGAAGAGAGGCAGAAAGAAGCTGCTGTACATCTTCAAGCAGCCCTTCATGAGACCCGTGCAGACCACCCAGGAGGAGGACGGCTGCAGCTGCAGATTCCCCGAGGAGGAGGAGGGCGGCTGCGAGCTGGGCGGCGGCGGCAGCGGCGGCGGCGGCAGCGGCGGCGGCGGCAGCAGAGTGAAGTTCAGCAGAAGCGCCGACGCCCCCGCCTACCAGCAGGGCCAGAACCAGCTGTACAACGAGCTGAACCTGGGCAGAAGAGAGGAGTACGACGTGCTGGACAAGAGAAGAGGCAGAGACCCCGAGATGGGCGGCAAGCCCAGAAGAAAGAACCCCCAGGAGGGCCTGTACAACGAGCTGCAGAAGGACAAGATGGCCGAGGCCTACAGCGAGATCGGCATGAAGGGCGAGAGAAGAAGAGGCAAGGGCCACGACGGCCTGTACCAGGGCCTGAGCACCGCCACCAAGGACACCTACGACGCCCTGCACATGCAGGCCCTGCCCCCCAGAACCAGCGGCAGCGGCGCCACCAACTTCAGCCTGCTGAAGCAGGCCGGCGACGTGGAGGAGAACCCCGGCCCCATGGGCGTGCAGGTGGAGACCATCAGCCCCGGCGACGGCAGAACCTTCCCCAAGAGAGGCCAGACCTGCGTGGTGCACTACACCGGCATGCTGGAGGACGGCAAGAAGGTGGACAGCAGCAGAGACAGAAACAAGCCCTTCAAGTTCATGCTGGGCAAGCAGGAGGTGATCAGAGGCTGGGAGGAGGGCGTGGCCCAGATGAGCGTGGGCCAGAGAGCCAAGCTGACCATCAGCCCCGACTACGCCTACGGCGCCACCGGCCACCCCGGCATCATCCCCCCCCACGCCACCCTGGTGTTCGACGTGGAGCTGCTGAAGCTGGAGGGCGGCGGCGGCAGCGGCGGCGGCGGCAGCGGCGCCATGGTGGGCGCCCTGGAGAGCCTGAGAGGCAACGCCGACCTGGCCTACATCCTGAGCATGGAGCCCTGCGGCCACTGCCTGATCATCAACAACGTGAACTTCTGCAGAGAGAGCGGCCTGAGAACCAGAACCGGCAGCAACATCGACTGCGAGAAGCTGAGAAGAAGATTCAGCAGCCTGCACTTCATGGTGGAGGTGAAGGGCGACCTGACCGCCAAGAAGATGGTGCTGGCCCTGCTGGAGCTGGCCAGACAGGACCACGGCGCCCTGGACTGCTGCGTGGTGGTGATCCTGAGCCACGGCTGCCAGGCCAGCCACCTGCAGTTCCCCGGCGCCGTGTACGGCACCGACGGCTGCCCCGTGAGCGTGGAGAAGATCGTGAACATCTTCAACGGCACCAGCTGCCCCAGCCTGGGCGGCAAGCCCAAGCTGTTCTTCATCCAGGCCTGCGGCGGCGAGCAGAAGGACCACGGCTTCGAGGTGGCCAGCACCAGCCCCGAGGACGAGAGCCCCGGCAGCAACCCCGAGCCCGACGCCACCCCCTTCCAGGAGGGCCTGAGAACCTTCGACCAGCTGGACGCCATCAGCAGCCTGCCCACCCCCAGCGACATCTTCGTGAGCTACAGCACCTTCCCCGGCTTCGTGAGCTGGAGAGACCCCAAGAGCGGCAGCTGGTACGTGGAGACCCTGGACGACATCTTCGAGCAGTGGGCCCACAGCGAGGACCTGCAGAGCCTGCTGCTGAGAGTGGCCAACGCCGTGAGCGTGAAGGGCATCTACAAGCAGATGCCCGGCTGCTTCAACTTCCTGAGAAAGAAGCTGTTCTTCAAGACCAGCGCCAGCTGA.
本发明中,所述嵌合抗原受体还包括启动子,所述启动子为EF1a、CMV-TAR或CMV中的任意一种或至少两种的组合。
根据本发明,所述的嵌合抗原受体通过其编码的核酸序列转染到T细胞中表达。
根据本发明,所述转染的方式为通过病毒载体、真核表达质粒或mRNA序列中的任意一种或至少两种的组合转染到T细胞,优选为通过病毒载体转染到T细胞。
优选地,所述病毒载体为慢病毒载体和/或逆转录病毒载体,优选为慢病毒载体。
第二方面,本发明提供一种重组慢病毒,将包含如第一方面所述的嵌合抗原受体的病毒载体与包装辅助质粒pNHP和pHEF-VSVG共转染哺乳细胞得到的重组慢病毒。
根据本发明,所述哺乳细胞为293细胞,293T细胞或TE671细胞中的任意一种或至少两种的组合。
第三方面,本发明提供一种组合物,所述组合物包括如第一方面所述的嵌合抗原受体和/或如第二方面所述的重组慢病毒。
第四方面,本发明提供如第一方面所述的嵌合抗原受体、如第二方面所述的重组慢病毒或如第三方面所述的组合物在制备嵌合抗原受体T细胞及其在肿瘤治疗药物中的应用;
优选地,所述肿瘤为血液相关的肿瘤疾病,所述血液相关的肿瘤疾病为白血病或淋巴瘤。
与现有技术相比,本发明具有如下有益效果:
(1)本发明的嵌合抗原受体通过对CD117肿瘤表面抗原进行特定的基因改造,改造后的抗体能够使抗原-抗体结合力更强;
(2)本发明的CD117嵌合抗原受体能特异性的识别肿瘤表面抗原CD117,CD117在白血病及淋巴瘤中表达量高,相比于其他嵌合抗原受体和其他肿瘤抗原有更好的效果,使得CAR-T细胞的免疫效果增强,增强了CAR-T细胞的治疗效果;
(3)本发明的嵌合抗原受体在进行CAR-T细胞回输后,肿瘤表面CD117的表达量不会降低,不容易逃过免疫机制,能够更好的进行治疗。
附图说明
图1为CD117在急性T细胞白血病患者样本中表达量的流式细胞分析结果图,其中,图1(a)为急性T细胞白血病患者样本的流式细胞分析结果图,图1(b)为CD117在急性T细胞白血病细胞表达量;
图2为CD117在急性髓系白血病患者样本中表达量的流式细胞分析结果图,其中,图2(a)为急性髓系白血病患者样本的流式细胞分析结果图,图2(b)为CD117在急性髓系白血病细胞表达量;
图3为肿瘤细胞和CAR-T细胞混合培养的流式细胞分析结果图,其中,图3(a)肿瘤细胞与T细胞混合培养,图3(b)肿瘤细胞与Mesothelin CAR-T细胞混合培养,图3(c)肿瘤细胞与本申请的CAR-T细胞混合培养。
具体实施方式
为更进一步阐述本发明所采取的技术手段及其效果,以下结合附图并通过具体实施方式来进一步说明本发明的技术方案,但本发明并非局限在实施例范围内。
实施例中未注明具体技术或条件者,按照本领域内的文献所描述的技术或条件,或者按照产品说明书进行。所用试剂或仪器未注明生产厂商者,均为可通过正规渠道商购获得的常规产品。
实施例1:嵌合抗原受体的构建
(1)通过全基因合成Secretory信号肽、CD117抗原结合结构域,CD8α和/或CD28跨膜结构域,CD28信号传导结构域、CD137信号传导结构域和/或CD27信号传导结构域,CD3ζ信号传导结构域、2A序列和胱天蛋白酶9结构域,即Secretory-CD117-CD28-CD137-CD27-CD3ζ-2A-iCasp9;
所述嵌合抗原受体的核苷酸序列SEQ ID NO.3如下:
ATGCTGCTGCTGGTGACCAGCCTGCTGCTGTGCGAGCTGCCCCACCCCGCCTTCCTGCTGATCCCCCAGGTGCAGCTGGTGCAGAGCGGCGCCGCCGTGAAGAAGCCCGGCGAGAGCCTGAAGATCAGCTGCAAGGGCAGCGGCTACAGATTCACCAGCTACTGGATCGGCTGGGTGAGACAGATGCCCGGCAAGGGCCTGGAGTGGATGGGCATCATCTACCCCGGCGACAGCGACACCAGATACAGCCCCAGCTTCCAGGGCCAGGTGACCATCAGCGCCGGCAAGAGCATCAGCACCGCCTACCTGCAGTGGAGCAGCCTGAAGGCCAGCGACACCGCCATGTACTACTGCGCCAGACACGGCAGAGGCTACAACGGCTACGAGGGCGCCTTCGACATCTGGGGCCAGGGCACCATGGTGACCGTGAGCAGCGGCAGCACCAGCGGCAGCGGCAAGCCCGGCAGCAGCGAGGGCAGCACCAAGGGCGCCATCCAGCTGACCCAGAGCCCCAGCAGCCTGAGCGCCAGCGTGGGCGACAGAGTGACCATCACCTGCAGAGCCAGCCAGGGCATCAGCAGCGCCCTGGCCTGGTACCAGCAGAAGCCCGGCAAGGCCCCCAAGCTGCTGATCTACGACGCCAGCAGCCTGGAGAGCGGCGTGCCCAGCAGATTCAGCGGCAGCGGCAGCGGCACCGACTTCACCCTGACCATCAGCAGCCTGCAGCCCGAGGACTTCGCCACCTACTACTGCCAGCAGTTCAACAGCTACCCCCTGACCTTCGGCGGCGGCACCAAGGTGGAGATCAAGGCCGCCGCCATCGAGGTGATGTACCCCCCCCCCTACCTGGACAACGAGAAGAGCAACGGCACCATCATCCACGTGAAGGGCAAGCACCTGTGCCCCAGCCCCCTGTTCCCCGGCCCCAGCAAGCCCTTCTGGGTGCTGGTGGTGGTGGGCGGCGTGCTGGCCTGCTACAGCCTGCTGGTGACCGTGGCCTTCATCATCTTCTGGGTGAGAAGCAAGAGAAGCAGACTGCTGCACAGCGACTACATGAACATGACCCCCAGAAGACCCGGCCCCACCAGAAAGCACTACCAGCCCTACGCCCCCCCCAGAGACTTCGCCGCCTACAGAAGCGCCAGCGGCGGCGGCGGCAGCGGCGGCGGCGGCAGCCAGAGAAGAAAGTACAGAAGCAACAAGGGCGAGAGCCCCGTGGAGCCCGCCGAGCCCTGCCACTACAGCTGCCCCAGAGAGGAGGAGGGCAGCACCATCCCCATCCAGGAGGACTACAGAAAGCCCGAGCCCGCCTGCAGCCCCGGCGGCGGCGGCAGCGGCGGCGGCGGCAGCACCAGCGGCGGCGGCGGCAGCGGCGGCGGCGGCAGCGTGGTGAAGAGAGGCAGAAAGAAGCTGCTGTACATCTTCAAGCAGCCCTTCATGAGACCCGTGCAGACCACCCAGGAGGAGGACGGCTGCAGCTGCAGATTCCCCGAGGAGGAGGAGGGCGGCTGCGAGCTGGGCGGCGGCGGCAGCGGCGGCGGCGGCAGCGGCGGCGGCGGCAGCAGAGTGAAGTTCAGCAGAAGCGCCGACGCCCCCGCCTACCAGCAGGGCCAGAACCAGCTGTACAACGAGCTGAACCTGGGCAGAAGAGAGGAGTACGACGTGCTGGACAAGAGAAGAGGCAGAGACCCCGAGATGGGCGGCAAGCCCAGAAGAAAGAACCCCCAGGAGGGCCTGTACAACGAGCTGCAGAAGGACAAGATGGCCGAGGCCTACAGCGAGATCGGCATGAAGGGCGAGAGAAGAAGAGGCAAGGGCCACGACGGCCTGTACCAGGGCCTGAGCACCGCCACCAAGGACACCTACGACGCCCTGCACATGCAGGCCCTGCCCCCCAGAACCAGCGGCAGCGGCGCCACCAACTTCAGCCTGCTGAAGCAGGCCGGCGACGTGGAGGAGAACCCCGGCCCCATGGGCGTGCAGGTGGAGACCATCAGCCCCGGCGACGGCAGAACCTTCCCCAAGAGAGGCCAGACCTGCGTGGTGCACTACACCGGCATGCTGGAGGACGGCAAGAAGGTGGACAGCAGCAGAGACAGAAACAAGCCCTTCAAGTTCATGCTGGGCAAGCAGGAGGTGATCAGAGGCTGGGAGGAGGGCGTGGCCCAGATGAGCGTGGGCCAGAGAGCCAAGCTGACCATCAGCCCCGACTACGCCTACGGCGCCACCGGCCACCCCGGCATCATCCCCCCCCACGCCACCCTGGTGTTCGACGTGGAGCTGCTGAAGCTGGAGGGCGGCGGCGGCAGCGGCGGCGGCGGCAGCGGCGCCATGGTGGGCGCCCTGGAGAGCCTGAGAGGCAACGCCGACCTGGCCTACATCCTGAGCATGGAGCCCTGCGGCCACTGCCTGATCATCAACAACGTGAACTTCTGCAGAGAGAGCGGCCTGAGAACCAGAACCGGCAGCAACATCGACTGCGAGAAGCTGAGAAGAAGATTCAGCAGCCTGCACTTCATGGTGGAGGTGAAGGGCGACCTGACCGCCAAGAAGATGGTGCTGGCCCTGCTGGAGCTGGCCAGACAGGACCACGGCGCCCTGGACTGCTGCGTGGTGGTGATCCTGAGCCACGGCTGCCAGGCCAGCCACCTGCAGTTCCCCGGCGCCGTGTACGGCACCGACGGCTGCCCCGTGAGCGTGGAGAAGATCGTGAACATCTTCAACGGCACCAGCTGCCCCAGCCTGGGCGGCAAGCCCAAGCTGTTCTTCATCCAGGCCTGCGGCGGCGAGCAGAAGGACCACGGCTTCGAGGTGGCCAGCACCAGCCCCGAGGACGAGAGCCCCGGCAGCAACCCCGAGCCCGACGCCACCCCCTTCCAGGAGGGCCTGAGAACCTTCGACCAGCTGGACGCCATCAGCAGCCTGCCCACCCCCAGCGACATCTTCGTGAGCTACAGCACCTTCCCCGGCTTCGTGAGCTGGAGAGACCCCAAGAGCGGCAGCTGGTACGTGGAGACCCTGGACGACATCTTCGAGCAGTGGGCCCACAGCGAGGACCTGCAGAGCCTGCTGCTGAGAGTGGCCAACGCCGTGAGCGTGAAGGGCATCTACAAGCAGATGCCCGGCTGCTTCAACTTCCTGAGAAAGAAGCTGTTCTTCAAGACCAGCGCCAGCTGA。
实施例2:慢病毒包装
(1)用六孔板分别培养293T细胞,1×106个细胞/孔,培养17-18小时;
(2)加入600μL/孔的新鲜的DMEM,内含10%的FBS;
(3)在无菌离心管中加入以下试剂:每孔取75μL的DMEM的上清液,2.7μg的辅助DNA混合液(1.8μg pNHP,0.5μg pHEF-VSV-G,0.2μg pHEF-GFP)以及0.8μg的pTYF DNA载体,漩涡振荡;
(4)从每孔板中央吸取7μL的Superfect加至离心管中吹打5次,室温静置7-10分钟;
(5)将离心管中的DNA-Superfect混合液逐滴加入至每个培养孔中,漩涡打匀;
(6)37℃3%CO2培养箱里培养4-5小时;
(7)吸走培养基的培养液,用1.5mL AIM-V冲洗培养基,并加入1.5mL的AIM-V继续培养;
(8)将培养基放回3%CO2培养箱中培养过夜,第2-3天早上用荧光显微镜观察转染效率。
实施例3:慢病毒的纯化和浓缩
1)病毒纯化
通过离心(1000g,5分钟)除去细胞碎片,得到病毒上清液,用一个0.45微米的低蛋白结合过滤器将病毒上清液过滤,病毒被分装成小份,储存在-80℃;
通常情况下,在每毫升的培养基中,转染细胞可以产生106到107转导单位滴定的慢病毒载体。
2)用Centricon过滤器浓缩慢病毒载体
(1)在生物安全柜中,取Centricon管,用70%酒精消毒1次,然后用无菌PBS清洗3次;
(2)每个Centricon P-20过滤管中加入18ml的病毒上清液,然后在2500g下离心30分钟或者直到病毒体积减小到0.5ml;
(3)震荡过滤管,然后在400g下,离心2分钟,收集浓缩的病毒到收集杯中。最后将所有管中的病毒集中到一个离心管中。
实施例4:CAR-T细胞的转染
将活化后的T细胞以5×106接种到24孔板,加入50μl的浓缩目标基因的慢病毒,以100g离心力的速度,室温离心100分钟后,置于37℃培养24h,加入1ml的含有2%人血清与细胞培养因子的AIM-V基,培养2-3天后,将细胞收获并计数,以1×107接种到12孔板,培养2-3天,用慢病毒载体携带GFP感染靶细胞并用annexinV/PI染色法观察细胞毒杀效果。
结果如图1-2所示,如图1(a)-图1(b)所示,在急性T细胞白血病患者中有73%的肿瘤细胞高度表达CD117;如图2(a)-图2(b)所示,在急性髓系白血病患者中,有49.2%的肿瘤细胞高度表达CD117。可得,本发明选用的CD117作为嵌合抗原受体的靶点具有强的特异性,能够快速、准确的识别并毒杀淋巴白血病细胞。
实施例5 CAR-T细胞的体外肿瘤杀伤
(1)将对照T细胞、Mesothelin CAR T和制备的CAR-T细胞与肿瘤细胞共培养,置于37度5%CO2培养箱共培养18h;
(2)体外评估CAR-T细胞对癌细胞的识别杀伤功能,肿瘤细胞为钙黄绿素标记或感染LV-GFP;
结果如图3(a)-图3(b)所示,从图3(a)可以看出,肿瘤细胞与T细胞共培养后,所示肿瘤细胞的比例为52.7%,从图3(b)可以看出,肿瘤细胞与Mesothelin CAR T细胞共培养后,所示肿瘤细胞的比例略有降低,为35.5%,从图3(c)可以看出,肿瘤细胞与制备的CAR-T细胞共培养后,所示肿瘤细胞的比例减少为16.7%,可见本申请制备的CAR-T细胞对肿瘤的杀伤效果最好。
综上所述,本发明的嵌合抗原受体的CD117肿瘤表面抗原不容易发生突变,且相比于其他嵌合抗原受体和其他肿瘤抗原有更好的效果,靶点的表达量高,使得CAR-T细胞的免疫效果增强,增强了CAR-T细胞的治疗效果。
申请人声明,本发明通过上述实施例来说明本发明的详细方法,但本发明并不局限于上述详细方法,即不意味着本发明必须依赖上述详细方法才能实施。所属技术领域的技术人员应该明了,对本发明的任何改进,对本发明产品各原料的等效替换及辅助成分的添加、具体方式的选择等,均落在本发明的保护范围和公开范围之内。
SEQUENCE LISTING
<110> 深圳市免疫基因治疗研究院
<120> 一种基于CD117的嵌合抗原受体及其应用
<130> 2017
<160> 6
<170> PatentIn version 3.3
<210> 1
<211> 248
<212> PRT
<213> 人工合成序列
<400> 1
Gln Val Gln Leu Val Gln Ser Gly Ala Ala Val Lys Lys Pro Gly Glu
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Ser Leu Lys Ile Ser Cys Lys Gly Ser Gly Tyr Arg Phe Thr Ser Tyr
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Trp Ile Gly Trp Val Arg Gln Met Pro Gly Lys Gly Leu Glu Trp Met
35 40 45
Gly Ile Ile Tyr Pro Gly Asp Ser Asp Thr Arg Tyr Ser Pro Ser Phe
50 55 60
Gln Gly Gln Val Thr Ile Ser Ala Gly Lys Ser Ile Ser Thr Ala Tyr
65 70 75 80
Leu Gln Trp Ser Ser Leu Lys Ala Ser Asp Thr Ala Met Tyr Tyr Cys
85 90 95
Ala Arg His Gly Arg Gly Tyr Asn Gly Tyr Glu Gly Ala Phe Asp Ile
100 105 110
Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Gly Ser Thr Ser Gly
115 120 125
Ser Gly Lys Pro Gly Ser Ser Glu Gly Ser Thr Lys Gly Ala Ile Gln
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Leu Thr Gln Ser Pro Ser Ser Leu Ser Ala Ser Val Gly Asp Arg Val
145 150 155 160
Thr Ile Thr Cys Arg Ala Ser Gln Gly Ile Ser Ser Ala Leu Ala Trp
165 170 175
Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile Tyr Asp Ala
180 185 190
Ser Ser Leu Glu Ser Gly Val Pro Ser Arg Phe Ser Gly Ser Gly Ser
195 200 205
Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro Glu Asp Phe
210 215 220
Ala Thr Tyr Tyr Cys Gln Gln Phe Asn Ser Tyr Pro Leu Thr Phe Gly
225 230 235 240
Gly Gly Thr Lys Val Glu Ile Lys
245
<210> 2
<211> 1058
<212> PRT
<213> 人工合成序列
<400> 2
Met Leu Leu Leu Val Thr Ser Leu Leu Leu Cys Glu Leu Pro His Pro
1 5 10 15
Ala Phe Leu Leu Ile Pro Gln Val Gln Leu Val Gln Ser Gly Ala Ala
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Val Lys Lys Pro Gly Glu Ser Leu Lys Ile Ser Cys Lys Gly Ser Gly
35 40 45
Tyr Arg Phe Thr Ser Tyr Trp Ile Gly Trp Val Arg Gln Met Pro Gly
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Lys Gly Leu Glu Trp Met Gly Ile Ile Tyr Pro Gly Asp Ser Asp Thr
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Arg Tyr Ser Pro Ser Phe Gln Gly Gln Val Thr Ile Ser Ala Gly Lys
85 90 95
Ser Ile Ser Thr Ala Tyr Leu Gln Trp Ser Ser Leu Lys Ala Ser Asp
100 105 110
Thr Ala Met Tyr Tyr Cys Ala Arg His Gly Arg Gly Tyr Asn Gly Tyr
115 120 125
Glu Gly Ala Phe Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser
130 135 140
Ser Gly Ser Thr Ser Gly Ser Gly Lys Pro Gly Ser Ser Glu Gly Ser
145 150 155 160
Thr Lys Gly Ala Ile Gln Leu Thr Gln Ser Pro Ser Ser Leu Ser Ala
165 170 175
Ser Val Gly Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Gly Ile
180 185 190
Ser Ser Ala Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys
195 200 205
Leu Leu Ile Tyr Asp Ala Ser Ser Leu Glu Ser Gly Val Pro Ser Arg
210 215 220
Phe Ser Gly Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser
225 230 235 240
Leu Gln Pro Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Phe Asn Ser
245 250 255
Tyr Pro Leu Thr Phe Gly Gly Gly Thr Lys Val Glu Ile Lys Ala Ala
260 265 270
Ala Ile Glu Val Met Tyr Pro Pro Pro Tyr Leu Asp Asn Glu Lys Ser
275 280 285
Asn Gly Thr Ile Ile His Val Lys Gly Lys His Leu Cys Pro Ser Pro
290 295 300
Leu Phe Pro Gly Pro Ser Lys Pro Phe Trp Val Leu Val Val Val Gly
305 310 315 320
Gly Val Leu Ala Cys Tyr Ser Leu Leu Val Thr Val Ala Phe Ile Ile
325 330 335
Phe Trp Val Arg Ser Lys Arg Ser Arg Leu Leu His Ser Asp Tyr Met
340 345 350
Asn Met Thr Pro Arg Arg Pro Gly Pro Thr Arg Lys His Tyr Gln Pro
355 360 365
Tyr Ala Pro Pro Arg Asp Phe Ala Ala Tyr Arg Ser Ala Ser Gly Gly
370 375 380
Gly Gly Ser Gly Gly Gly Gly Ser Gln Arg Arg Lys Tyr Arg Ser Asn
385 390 395 400
Lys Gly Glu Ser Pro Val Glu Pro Ala Glu Pro Cys His Tyr Ser Cys
405 410 415
Pro Arg Glu Glu Glu Gly Ser Thr Ile Pro Ile Gln Glu Asp Tyr Arg
420 425 430
Lys Pro Glu Pro Ala Cys Ser Pro Gly Gly Gly Gly Ser Gly Gly Gly
435 440 445
Gly Ser Thr Ser Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Val Val
450 455 460
Lys Arg Gly Arg Lys Lys Leu Leu Tyr Ile Phe Lys Gln Pro Phe Met
465 470 475 480
Arg Pro Val Gln Thr Thr Gln Glu Glu Asp Gly Cys Ser Cys Arg Phe
485 490 495
Pro Glu Glu Glu Glu Gly Gly Cys Glu Leu Gly Gly Gly Gly Ser Gly
500 505 510
Gly Gly Gly Ser Gly Gly Gly Gly Ser Arg Val Lys Phe Ser Arg Ser
515 520 525
Ala Asp Ala Pro Ala Tyr Gln Gln Gly Gln Asn Gln Leu Tyr Asn Glu
530 535 540
Leu Asn Leu Gly Arg Arg Glu Glu Tyr Asp Val Leu Asp Lys Arg Arg
545 550 555 560
Gly Arg Asp Pro Glu Met Gly Gly Lys Pro Arg Arg Lys Asn Pro Gln
565 570 575
Glu Gly Leu Tyr Asn Glu Leu Gln Lys Asp Lys Met Ala Glu Ala Tyr
580 585 590
Ser Glu Ile Gly Met Lys Gly Glu Arg Arg Arg Gly Lys Gly His Asp
595 600 605
Gly Leu Tyr Gln Gly Leu Ser Thr Ala Thr Lys Asp Thr Tyr Asp Ala
610 615 620
Leu His Met Gln Ala Leu Pro Pro Arg Thr Ser Gly Ser Gly Ala Thr
625 630 635 640
Asn Phe Ser Leu Leu Lys Gln Ala Gly Asp Val Glu Glu Asn Pro Gly
645 650 655
Pro Met Gly Val Gln Val Glu Thr Ile Ser Pro Gly Asp Gly Arg Thr
660 665 670
Phe Pro Lys Arg Gly Gln Thr Cys Val Val His Tyr Thr Gly Met Leu
675 680 685
Glu Asp Gly Lys Lys Val Asp Ser Ser Arg Asp Arg Asn Lys Pro Phe
690 695 700
Lys Phe Met Leu Gly Lys Gln Glu Val Ile Arg Gly Trp Glu Glu Gly
705 710 715 720
Val Ala Gln Met Ser Val Gly Gln Arg Ala Lys Leu Thr Ile Ser Pro
725 730 735
Asp Tyr Ala Tyr Gly Ala Thr Gly His Pro Gly Ile Ile Pro Pro His
740 745 750
Ala Thr Leu Val Phe Asp Val Glu Leu Leu Lys Leu Glu Gly Gly Gly
755 760 765
Gly Ser Gly Gly Gly Gly Ser Gly Ala Met Val Gly Ala Leu Glu Ser
770 775 780
Leu Arg Gly Asn Ala Asp Leu Ala Tyr Ile Leu Ser Met Glu Pro Cys
785 790 795 800
Gly His Cys Leu Ile Ile Asn Asn Val Asn Phe Cys Arg Glu Ser Gly
805 810 815
Leu Arg Thr Arg Thr Gly Ser Asn Ile Asp Cys Glu Lys Leu Arg Arg
820 825 830
Arg Phe Ser Ser Leu His Phe Met Val Glu Val Lys Gly Asp Leu Thr
835 840 845
Ala Lys Lys Met Val Leu Ala Leu Leu Glu Leu Ala Arg Gln Asp His
850 855 860
Gly Ala Leu Asp Cys Cys Val Val Val Ile Leu Ser His Gly Cys Gln
865 870 875 880
Ala Ser His Leu Gln Phe Pro Gly Ala Val Tyr Gly Thr Asp Gly Cys
885 890 895
Pro Val Ser Val Glu Lys Ile Val Asn Ile Phe Asn Gly Thr Ser Cys
900 905 910
Pro Ser Leu Gly Gly Lys Pro Lys Leu Phe Phe Ile Gln Ala Cys Gly
915 920 925
Gly Glu Gln Lys Asp His Gly Phe Glu Val Ala Ser Thr Ser Pro Glu
930 935 940
Asp Glu Ser Pro Gly Ser Asn Pro Glu Pro Asp Ala Thr Pro Phe Gln
945 950 955 960
Glu Gly Leu Arg Thr Phe Asp Gln Leu Asp Ala Ile Ser Ser Leu Pro
965 970 975
Thr Pro Ser Asp Ile Phe Val Ser Tyr Ser Thr Phe Pro Gly Phe Val
980 985 990
Ser Trp Arg Asp Pro Lys Ser Gly Ser Trp Tyr Val Glu Thr Leu Asp
995 1000 1005
Asp Ile Phe Glu Gln Trp Ala His Ser Glu Asp Leu Gln Ser Leu
1010 1015 1020
Leu Leu Arg Val Ala Asn Ala Val Ser Val Lys Gly Ile Tyr Lys
1025 1030 1035
Gln Met Pro Gly Cys Phe Asn Phe Leu Arg Lys Lys Leu Phe Phe
1040 1045 1050
Lys Thr Ser Ala Ser
1055
<210> 3
<211> 3177
<212> DNA
<213> 人工合成序列
<400> 3
atgctgctgc tggtgaccag cctgctgctg tgcgagctgc cccaccccgc cttcctgctg 60
atcccccagg tgcagctggt gcagagcggc gccgccgtga agaagcccgg cgagagcctg 120
aagatcagct gcaagggcag cggctacaga ttcaccagct actggatcgg ctgggtgaga 180
cagatgcccg gcaagggcct ggagtggatg ggcatcatct accccggcga cagcgacacc 240
agatacagcc ccagcttcca gggccaggtg accatcagcg ccggcaagag catcagcacc 300
gcctacctgc agtggagcag cctgaaggcc agcgacaccg ccatgtacta ctgcgccaga 360
cacggcagag gctacaacgg ctacgagggc gccttcgaca tctggggcca gggcaccatg 420
gtgaccgtga gcagcggcag caccagcggc agcggcaagc ccggcagcag cgagggcagc 480
accaagggcg ccatccagct gacccagagc cccagcagcc tgagcgccag cgtgggcgac 540
agagtgacca tcacctgcag agccagccag ggcatcagca gcgccctggc ctggtaccag 600
cagaagcccg gcaaggcccc caagctgctg atctacgacg ccagcagcct ggagagcggc 660
gtgcccagca gattcagcgg cagcggcagc ggcaccgact tcaccctgac catcagcagc 720
ctgcagcccg aggacttcgc cacctactac tgccagcagt tcaacagcta ccccctgacc 780
ttcggcggcg gcaccaaggt ggagatcaag gccgccgcca tcgaggtgat gtaccccccc 840
ccctacctgg acaacgagaa gagcaacggc accatcatcc acgtgaaggg caagcacctg 900
tgccccagcc ccctgttccc cggccccagc aagcccttct gggtgctggt ggtggtgggc 960
ggcgtgctgg cctgctacag cctgctggtg accgtggcct tcatcatctt ctgggtgaga 1020
agcaagagaa gcagactgct gcacagcgac tacatgaaca tgacccccag aagacccggc 1080
cccaccagaa agcactacca gccctacgcc ccccccagag acttcgccgc ctacagaagc 1140
gccagcggcg gcggcggcag cggcggcggc ggcagccaga gaagaaagta cagaagcaac 1200
aagggcgaga gccccgtgga gcccgccgag ccctgccact acagctgccc cagagaggag 1260
gagggcagca ccatccccat ccaggaggac tacagaaagc ccgagcccgc ctgcagcccc 1320
ggcggcggcg gcagcggcgg cggcggcagc accagcggcg gcggcggcag cggcggcggc 1380
ggcagcgtgg tgaagagagg cagaaagaag ctgctgtaca tcttcaagca gcccttcatg 1440
agacccgtgc agaccaccca ggaggaggac ggctgcagct gcagattccc cgaggaggag 1500
gagggcggct gcgagctggg cggcggcggc agcggcggcg gcggcagcgg cggcggcggc 1560
agcagagtga agttcagcag aagcgccgac gcccccgcct accagcaggg ccagaaccag 1620
ctgtacaacg agctgaacct gggcagaaga gaggagtacg acgtgctgga caagagaaga 1680
ggcagagacc ccgagatggg cggcaagccc agaagaaaga acccccagga gggcctgtac 1740
aacgagctgc agaaggacaa gatggccgag gcctacagcg agatcggcat gaagggcgag 1800
agaagaagag gcaagggcca cgacggcctg taccagggcc tgagcaccgc caccaaggac 1860
acctacgacg ccctgcacat gcaggccctg ccccccagaa ccagcggcag cggcgccacc 1920
aacttcagcc tgctgaagca ggccggcgac gtggaggaga accccggccc catgggcgtg 1980
caggtggaga ccatcagccc cggcgacggc agaaccttcc ccaagagagg ccagacctgc 2040
gtggtgcact acaccggcat gctggaggac ggcaagaagg tggacagcag cagagacaga 2100
aacaagccct tcaagttcat gctgggcaag caggaggtga tcagaggctg ggaggagggc 2160
gtggcccaga tgagcgtggg ccagagagcc aagctgacca tcagccccga ctacgcctac 2220
ggcgccaccg gccaccccgg catcatcccc ccccacgcca ccctggtgtt cgacgtggag 2280
ctgctgaagc tggagggcgg cggcggcagc ggcggcggcg gcagcggcgc catggtgggc 2340
gccctggaga gcctgagagg caacgccgac ctggcctaca tcctgagcat ggagccctgc 2400
ggccactgcc tgatcatcaa caacgtgaac ttctgcagag agagcggcct gagaaccaga 2460
accggcagca acatcgactg cgagaagctg agaagaagat tcagcagcct gcacttcatg 2520
gtggaggtga agggcgacct gaccgccaag aagatggtgc tggccctgct ggagctggcc 2580
agacaggacc acggcgccct ggactgctgc gtggtggtga tcctgagcca cggctgccag 2640
gccagccacc tgcagttccc cggcgccgtg tacggcaccg acggctgccc cgtgagcgtg 2700
gagaagatcg tgaacatctt caacggcacc agctgcccca gcctgggcgg caagcccaag 2760
ctgttcttca tccaggcctg cggcggcgag cagaaggacc acggcttcga ggtggccagc 2820
accagccccg aggacgagag ccccggcagc aaccccgagc ccgacgccac ccccttccag 2880
gagggcctga gaaccttcga ccagctggac gccatcagca gcctgcccac ccccagcgac 2940
atcttcgtga gctacagcac cttccccggc ttcgtgagct ggagagaccc caagagcggc 3000
agctggtacg tggagaccct ggacgacatc ttcgagcagt gggcccacag cgaggacctg 3060
cagagcctgc tgctgagagt ggccaacgcc gtgagcgtga agggcatcta caagcagatg 3120
cccggctgct tcaacttcct gagaaagaag ctgttcttca agaccagcgc cagctga 3177
<210> 4
<211> 423
<212> PRT
<213> 人工合成序列
<400> 4
Gly Ser Gly Ala Thr Asn Phe Ser Leu Leu Lys Gln Ala Gly Asp Val
1 5 10 15
Glu Glu Asn Pro Gly Pro Met Gly Val Gln Val Glu Thr Ile Ser Pro
20 25 30
Gly Asp Gly Arg Thr Phe Pro Lys Arg Gly Gln Thr Cys Val Val His
35 40 45
Tyr Thr Gly Met Leu Glu Asp Gly Lys Lys Val Asp Ser Ser Arg Asp
50 55 60
Arg Asn Lys Pro Phe Lys Phe Met Leu Gly Lys Gln Glu Val Ile Arg
65 70 75 80
Gly Trp Glu Glu Gly Val Ala Gln Met Ser Val Gly Gln Arg Ala Lys
85 90 95
Leu Thr Ile Ser Pro Asp Tyr Ala Tyr Gly Ala Thr Gly His Pro Gly
100 105 110
Ile Ile Pro Pro His Ala Thr Leu Val Phe Asp Val Glu Leu Leu Lys
115 120 125
Leu Glu Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Gly Ala Met Val
130 135 140
Gly Ala Leu Glu Ser Leu Arg Gly Asn Ala Asp Leu Ala Tyr Ile Leu
145 150 155 160
Ser Met Glu Pro Cys Gly His Cys Leu Ile Ile Asn Asn Val Asn Phe
165 170 175
Cys Arg Glu Ser Gly Leu Arg Thr Arg Thr Gly Ser Asn Ile Asp Cys
180 185 190
Glu Lys Leu Arg Arg Arg Phe Ser Ser Leu His Phe Met Val Glu Val
195 200 205
Lys Gly Asp Leu Thr Ala Lys Lys Met Val Leu Ala Leu Leu Glu Leu
210 215 220
Ala Arg Gln Asp His Gly Ala Leu Asp Cys Cys Val Val Val Ile Leu
225 230 235 240
Ser His Gly Cys Gln Ala Ser His Leu Gln Phe Pro Gly Ala Val Tyr
245 250 255
Gly Thr Asp Gly Cys Pro Val Ser Val Glu Lys Ile Val Asn Ile Phe
260 265 270
Asn Gly Thr Ser Cys Pro Ser Leu Gly Gly Lys Pro Lys Leu Phe Phe
275 280 285
Ile Gln Ala Cys Gly Gly Glu Gln Lys Asp His Gly Phe Glu Val Ala
290 295 300
Ser Thr Ser Pro Glu Asp Glu Ser Pro Gly Ser Asn Pro Glu Pro Asp
305 310 315 320
Ala Thr Pro Phe Gln Glu Gly Leu Arg Thr Phe Asp Gln Leu Asp Ala
325 330 335
Ile Ser Ser Leu Pro Thr Pro Ser Asp Ile Phe Val Ser Tyr Ser Thr
340 345 350
Phe Pro Gly Phe Val Ser Trp Arg Asp Pro Lys Ser Gly Ser Trp Tyr
355 360 365
Val Glu Thr Leu Asp Asp Ile Phe Glu Gln Trp Ala His Ser Glu Asp
370 375 380
Leu Gln Ser Leu Leu Leu Arg Val Ala Asn Ala Val Ser Val Lys Gly
385 390 395 400
Ile Tyr Lys Gln Met Pro Gly Cys Phe Asn Phe Leu Arg Lys Lys Leu
405 410 415
Phe Phe Lys Thr Ser Ala Ser
420
<210> 5
<211> 21
<212> PRT
<213> 人工合成序列
<400> 5
Met Ala Leu Pro Val Thr Ala Leu Leu Leu Pro Leu Ala Leu Leu Leu
1 5 10 15
His Ala Ala Arg Pro
20
<210> 6
<211> 22
<212> PRT
<213> 人工合成序列
<400> 6
Met Leu Leu Leu Val Thr Ser Leu Leu Leu Cys Glu Leu Pro His Pro
1 5 10 15
Ala Phe Leu Leu Ile Pro
20

Claims (13)

1.一种基于CD117嵌合抗原受体,其特征在于,所述嵌合抗原受体为Secretory-CD117-CD28-CD137-CD27-CD3ζ-2A-iCasp9;
所述嵌合抗原受体Secretory-CD117-CD28-CD137-CD27-CD3ζ-2A-iCasp9的氨基酸序列如SEQ ID NO.2所示。
2.根据权利要求1所述的嵌合抗原受体,其特征在于,所述嵌合抗原受体Secretory-CD117-CD28-CD137-CD27-CD3ζ-2A-iCasp9的核苷酸序列如SEQ ID NO.3所示。
3.根据权利要求2所述的嵌合抗原受体,其特征在于,所述的嵌合抗原受体通过其编码的核酸序列转染到T细胞中表达。
4.根据权利要求3所述的嵌合抗原受体,其特征在于,所述转染的方式为通过病毒载体、真核表达质粒或mRNA序列中的任意一种或至少两种的组合转染到T细胞。
5.根据权利要求4所述的嵌合抗原受体,其特征在于,所述转染的方式为通过病毒载体转染到T细胞。
6.根据权利要求5所述的嵌合抗原受体,其特征在于,所述病毒载体为慢病毒载体和/或逆转录病毒载体。
7.根据权利要求6所述的嵌合抗原受体,其特征在于,所述病毒载体为慢病毒载体。
8.一种重组慢病毒,其特征在于,将包含如权利要求1-7中任一项所述的嵌合抗原受体的病毒载体与包装辅助质粒pNHP和pHEF-VSVG共转染哺乳细胞得到的重组慢病毒。
9.根据权利要求8所述的重组慢病毒,其特征在于,所述哺乳细胞为293细胞,293T细胞或TE671细胞中的任意一种或至少两种的组合。
10.一种组合物,其特征在于,所述组合物包括如权利要求1-7中任一项所述的嵌合抗原受体和/或如权利要求8或9所述的重组慢病毒。
11.如权利要求1-7中任一项所述的嵌合抗原受体、如权利要求8或9所述的重组慢病毒或如权利要求10所述的组合物在制备嵌合抗原受体T细胞及其在制备肿瘤治疗药物中的应用。
12.根据权利要求11所述的应用,其特征在于,所述肿瘤为血液相关的肿瘤疾病。
13.根据权利要求12所述的应用,其特征在于,所述血液相关的肿瘤疾病为白血病和/或淋巴瘤。
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CN107974460B (zh) * 2017-11-30 2021-06-01 山东兴瑞生物科技有限公司 针对hiv-1的嵌合抗原受体基因、具有该基因的质粒、t细胞、试剂盒及应用
CN108383914A (zh) * 2018-02-23 2018-08-10 北京美康基免生物科技有限公司 一种基于cd19的嵌合抗原受体及其应用
CN112334193A (zh) * 2018-04-10 2021-02-05 美国安进公司 Dll3的嵌合受体及其使用方法
US20220023343A1 (en) * 2018-11-19 2022-01-27 Board Of Regents, The University Of Texas System Suicide gene
CN109468283A (zh) * 2018-11-30 2019-03-15 北京美康基免生物科技有限公司 一种基于cd19和bcma的双重嵌合抗原受体基因修饰的免疫细胞及其应用
WO2023248126A1 (en) * 2022-06-20 2023-12-28 Crispr Therapeutics Ag Chimeric antigen receptor specific to cd117
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