Objective To investigate the expression and regulation of programmed cell death protein 1(PD1),B lymphocyte and T lymphocyte attenuator(BTLA)in peripheral blood of patients with non-small cell lung cancer(NSCLC);to ex...Objective To investigate the expression and regulation of programmed cell death protein 1(PD1),B lymphocyte and T lymphocyte attenuator(BTLA)in peripheral blood of patients with non-small cell lung cancer(NSCLC);to examine the correlation of the mRNA levels between PD and BTLA in NSCLC.Methods Flow cytometry was used to detect the expression of PD1 and BTLA on the surfaces of CD8^+T cells andγδ+T cells in the peripheral blood samples collected from 32 in-patients with stage IV NSCLC and 30 healthy individuals.We compared the expression of PD1 and BTLA on the surfaces ofγδ+T cells in the NSCLC patients with bone metastasis before and after the treatment of zoledronic acid.The correlations of PD1 and BTLA,as well as their ligands were analyzed using Pearson correlation analysis with the cBioPortal data platform.Results The frequency of PD1 on the surfaces of CD8^+T cells was significantly higher than that of theγδT cells in both healthy controls(t=2.324,P=0.024)and NSCLC patients(t=2.498,P=0.015).The frequency of PD1 on CD8^+T cells,rather than onγδ+T cells,was significantly upregulated in advanced NSCLC patients compared with that in healthy controls(t=4.829,P<0.001).The PD1+BTLA+γδT cells of the healthy controls were significantly lower than that of the NSCLC patients(t=2.422,P=0.0185).No differences in percentage of PD1+γδ+and BTLA+γδ+T cells were observed in 7 NSCLC patients with bone metastasis before and after zoledronic acid treatment.PD1 was positively correlated with BTLA in both lung adenocarcinoma(r=0.54;P<0.05)and lung squamous cell carcinoma(r=0.78;P<0.05).Conclusions The upregulation of co-inhibitory molecules occurs on the surfaces of both CD8^+T cells andγδT cells in advanced NSCLC,suggesting that these molecules were involved in regulating the inactivation of CD8^+T cells andγδ+T cells,immune escape and tumor invasion.展开更多
目的观察乳康饮(Ru Kang Yin,RKY)刺激γδT细胞增殖对乳腺癌细胞MDA-MB-231的杀伤作用,为中医药治疗乳腺癌提供依据。方法实验分为以下4组,Ⅰ组:外周血单个核细胞(PBMC)对照组;Ⅱ组:PBMC+植物凝集素(PHA)组;Ⅲ组:PBMC+唑来膦酸(ZOL)组...目的观察乳康饮(Ru Kang Yin,RKY)刺激γδT细胞增殖对乳腺癌细胞MDA-MB-231的杀伤作用,为中医药治疗乳腺癌提供依据。方法实验分为以下4组,Ⅰ组:外周血单个核细胞(PBMC)对照组;Ⅱ组:PBMC+植物凝集素(PHA)组;Ⅲ组:PBMC+唑来膦酸(ZOL)组;Ⅳ组:PBMC+RKY组。在各组培养0 d和14 d时,用流式细胞术检测各组γδT细胞占PBMC的百分比。将用免疫磁珠分选的γδT细胞与荧光染料羧基荧光素二醋酸盐琥珀酰亚胺酯(CFSE)标记的乳腺癌MDA-MB-231细胞以10∶1的比例共培养,测定γδT细胞对乳腺癌MDA-MB-231细胞的杀伤力。结果培养0 d时,Ⅰ组~Ⅳ组γδT细胞占PBMC百分比分别为(3.81±0.27)%、(4.19±0.41)%、(3.94±0.13)%、(4.16±0.11)%,各组间差异无统计学意义(F=1.462,P=0.296)。培养14 d时,Ⅰ组~Ⅳ组γδT细胞占PBMC百分比分别为(4.70±0.29)%、(31.09±1.95)%、(25.91±3.77)%、(28.84±2.54)%,各组间差异有统计学意义(F=71.985,P=0.000)。Ⅰ组~Ⅳ组对MDA-MB-231细胞的杀伤率分别为(1.17±0.86)%、(1.56±0.13)%、(1.47±0.09)%、(2.01±0.16)%,各组间差异有统计学意义(F=24.649,P=0.000)。结论RKY可以刺激γδT细胞增殖,提高对MDA-MB-231细胞的杀伤力,为乳腺癌的中医药治疗提供实验依据。展开更多
基金Fund supported by the Healthcare Technology Plan of Zhejiang Provincial Health Bureau(No.2016KYB292)the Technology Plan of Science and Technology Bureau of Jiaxing,Zhejiang province(No.2016AY23054)~~
文摘Objective To investigate the expression and regulation of programmed cell death protein 1(PD1),B lymphocyte and T lymphocyte attenuator(BTLA)in peripheral blood of patients with non-small cell lung cancer(NSCLC);to examine the correlation of the mRNA levels between PD and BTLA in NSCLC.Methods Flow cytometry was used to detect the expression of PD1 and BTLA on the surfaces of CD8^+T cells andγδ+T cells in the peripheral blood samples collected from 32 in-patients with stage IV NSCLC and 30 healthy individuals.We compared the expression of PD1 and BTLA on the surfaces ofγδ+T cells in the NSCLC patients with bone metastasis before and after the treatment of zoledronic acid.The correlations of PD1 and BTLA,as well as their ligands were analyzed using Pearson correlation analysis with the cBioPortal data platform.Results The frequency of PD1 on the surfaces of CD8^+T cells was significantly higher than that of theγδT cells in both healthy controls(t=2.324,P=0.024)and NSCLC patients(t=2.498,P=0.015).The frequency of PD1 on CD8^+T cells,rather than onγδ+T cells,was significantly upregulated in advanced NSCLC patients compared with that in healthy controls(t=4.829,P<0.001).The PD1+BTLA+γδT cells of the healthy controls were significantly lower than that of the NSCLC patients(t=2.422,P=0.0185).No differences in percentage of PD1+γδ+and BTLA+γδ+T cells were observed in 7 NSCLC patients with bone metastasis before and after zoledronic acid treatment.PD1 was positively correlated with BTLA in both lung adenocarcinoma(r=0.54;P<0.05)and lung squamous cell carcinoma(r=0.78;P<0.05).Conclusions The upregulation of co-inhibitory molecules occurs on the surfaces of both CD8^+T cells andγδT cells in advanced NSCLC,suggesting that these molecules were involved in regulating the inactivation of CD8^+T cells andγδ+T cells,immune escape and tumor invasion.
