目的:探讨抗人胸腺免疫球蛋白(ATG)诱导培养的细胞因子诱导的杀伤细胞(CIK)的活性和功能,为CIK培养体系优化提供依据。方法:采集9例肿瘤患者外周血10 m L,分离单个核细胞,用CD3单抗或ATG(50、250、500μg/L)联合干扰素γ、白介素2诱导...目的:探讨抗人胸腺免疫球蛋白(ATG)诱导培养的细胞因子诱导的杀伤细胞(CIK)的活性和功能,为CIK培养体系优化提供依据。方法:采集9例肿瘤患者外周血10 m L,分离单个核细胞,用CD3单抗或ATG(50、250、500μg/L)联合干扰素γ、白介素2诱导培养。培养至第6~10天,采用流式细胞术检测细胞增殖状况,培养至第13天,采用流式细胞术检测CIK免疫表型(CD3、CD4、CD8、CD56)、激活性表面标志(CD28、CD27、CD69、NKG2D)、抑制性表面标志(PD1、CD152)及Granzyme-B、干扰素γ分泌量。结果:4种培养方式下,细胞增殖状况无统计学意义(P>0.05)。与CD3单抗相比,ATG培养的CIK中CD3^+CD4^+和CD3^+CD8^+细胞比例较低(P<0.001),CD3-CD56^+与CD8^+CD69^+细胞比例较高,CD56^+细胞干扰素γ和Granzyme-B分泌水平较高。结论:ATG诱导的CIK免疫活性优于用CD3单抗经典方案培养的CIK,抗肿瘤能力较强。展开更多
The gene of human thymosin alpha 1(hT(1)was synthesised according to favorite codons of Pichia pastoris by PCR. N-terminal 28 amino acid residues of 40S ribosomal protein (RP), S24E that is N-acetylserine were replace...The gene of human thymosin alpha 1(hT(1)was synthesised according to favorite codons of Pichia pastoris by PCR. N-terminal 28 amino acid residues of 40S ribosomal protein (RP), S24E that is N-acetylserine were replaced by hT(1 for the constitution of hT(1-RP fusion gene in order to express acetyllated thymosin α 1. And also,the Asn-Gly bond was designed to faciliate isolation of the target protein.The fusion gene was cloned into the expression vector, pPIC/9K. The constructs were transformed into HIS4 mutant strain GS115 by electroporation. Both SDS-PAGE analysis and Western blot analysis indicated that the fusion protein was expressed successfully.展开更多
文摘目的:探讨抗人胸腺免疫球蛋白(ATG)诱导培养的细胞因子诱导的杀伤细胞(CIK)的活性和功能,为CIK培养体系优化提供依据。方法:采集9例肿瘤患者外周血10 m L,分离单个核细胞,用CD3单抗或ATG(50、250、500μg/L)联合干扰素γ、白介素2诱导培养。培养至第6~10天,采用流式细胞术检测细胞增殖状况,培养至第13天,采用流式细胞术检测CIK免疫表型(CD3、CD4、CD8、CD56)、激活性表面标志(CD28、CD27、CD69、NKG2D)、抑制性表面标志(PD1、CD152)及Granzyme-B、干扰素γ分泌量。结果:4种培养方式下,细胞增殖状况无统计学意义(P>0.05)。与CD3单抗相比,ATG培养的CIK中CD3^+CD4^+和CD3^+CD8^+细胞比例较低(P<0.001),CD3-CD56^+与CD8^+CD69^+细胞比例较高,CD56^+细胞干扰素γ和Granzyme-B分泌水平较高。结论:ATG诱导的CIK免疫活性优于用CD3单抗经典方案培养的CIK,抗肿瘤能力较强。
文摘The gene of human thymosin alpha 1(hT(1)was synthesised according to favorite codons of Pichia pastoris by PCR. N-terminal 28 amino acid residues of 40S ribosomal protein (RP), S24E that is N-acetylserine were replaced by hT(1 for the constitution of hT(1-RP fusion gene in order to express acetyllated thymosin α 1. And also,the Asn-Gly bond was designed to faciliate isolation of the target protein.The fusion gene was cloned into the expression vector, pPIC/9K. The constructs were transformed into HIS4 mutant strain GS115 by electroporation. Both SDS-PAGE analysis and Western blot analysis indicated that the fusion protein was expressed successfully.
