目的了解重型再生障碍性贫血(SAA)患者在免疫抑制治疗(IST)前、后外周血树突细胞(DC)亚群数量、比值的变化,测定外周血 T 细胞激活协同分子(CD80、CD86、CD40)在树突细胞及 B细胞表面的表达。方法用单克隆抗体三标法和流式细胞术检测26...目的了解重型再生障碍性贫血(SAA)患者在免疫抑制治疗(IST)前、后外周血树突细胞(DC)亚群数量、比值的变化,测定外周血 T 细胞激活协同分子(CD80、CD86、CD40)在树突细胞及 B细胞表面的表达。方法用单克隆抗体三标法和流式细胞术检测26例发病期和13例 IST 后恢复的SAA 患者外周血髓系 DC 前体(pDC1)与淋系 DC 前体(pDC2)的数量、比例,并与15名正常对照比较。其中10例患者检测了治疗前、后2个月的 pDC1与 pDC2的数量。检测16例 SAA 患者及12名正常对照外刷血 DC 及 B 淋巴细胞表面 CD80、CD86、CD40的表达。结果正常对照组外周血 pDC 总量、pDC1、pDC2及 pDC1/pDC2比值分别为(0.72±0.08)%,(0.41±0.05)%,(0.30±0.05)%,1.58±0.18:而初发 SAA 患者为(0.96±0.18)%,(0.67±0.13)%.(0.32±0.06)%,2.70±0.32,pDC1显著增多(P<0.05),pDC1/pDC2比例明显失衡(P<0.01);恢复期 SAA 患者上述指标下降为(0.77±0.13)%,(0.43±0.10)%,(0.34±0.09)%,1.78±0.36,与正常对照组无差异(P 值均>0.05)。10例 SAA 患者治疗前 pDC1、pDC2及 pDC1/pDC2比值分别为(0.87±0.31)%,(0.35±0.09)%,2.65±0.40,治疗2个月后分别为(0.24±0.09)%,(0.14±0.04)%,2.16±0.26,pDC1、pDC2显著下降(P值均<0.05)。正常对照组外周血 DC 表面 CD80、CD86、CD40的表达分别为(1.61±0.84)%,(11.97±4.31)%,(0.56±0.45)%,而 SAA 患者分别为(9.14±4.08)%,(29.84±3.02)%,(7.04±3.79)%,SAA 患者 DC 表面 CD86表达明显高于正常对照(P<0.05)。正常对照组外周血淋巴细胞CD19、CD80、CD86、CD40的表达分别为(9.38±0.92)%,(2.57±0.44)%,(1.86±0.32)%,(7.34±1.22)%;而 SAA 患者分别为(11.12±2.26)%,(5.17±0.68)%,(5.98±0.96)%,(8.85±2.49)%,CD80^+细胞、CD86^+细胞比例明显高于正常对照(P 值分别为<0.05和0.01)。正常对照外周血 B 淋巴细胞 CD80、CD86、CD40的表达分别为(28.22±3.56)%,(8.04±0.66)%,(81.6±6.48)%;而 SAA患者分别为(23.06±3.73)%,(20.46±2.78)%,(81.57±5.29)%,SAA 患者 B 淋巴细胞上 CD86表达明显高�展开更多
Objective： To explore the effects of dentritic cells on the peripheral blood lymphocyte subpopulations of metastatic breast cancer patients treated with chemotherapy. Methods： The current study involved 44 metastati...Objective： To explore the effects of dentritic cells on the peripheral blood lymphocyte subpopulations of metastatic breast cancer patients treated with chemotherapy. Methods： The current study involved 44 metastatic breast cancer patients treated with docetaxel-based chemotherapy. Among them, 25 cases were treated with dendritic cells derived from CD34＋ hematopoietic stem cells enriched autologous peripheral mononuclear cells after chemotherapy, and 19 cases received chemotherapy alone. Peripheral blood samples were collected from each patient before and after treatment, and lymphocyte subpopulations including CD3＋, CD3＋/CD4＋, CD3＋/CD8＋, CD3-/CD16＋56＋, CD3＋/CD16＋56＋, CD4＋/CD25＋, CD8＋/CD28-, CD8＋/CD28＋, CD4/CD8, DC1, DC2 and DC1/DC2 were analysed by a 3-color flow cytometric analysis. Results： The two treatment groups were well matched with regard to demographic and baseline disease characteristics. Comparing the changes of lymphocyte subpopulations between the two groups, it showed that the difference of the change of CD8＋/CD28-lymphocyte had statistic significance. The percentage of CD8＋/CD28-lymphocyte was lower in the chemotherapy＋DC group, but higher in the chemotherapy-alone group. Conclusion： As CD8＋/CD28-lymphocyte represent a kind of suppressive T lymphocyte, we conclude that dentritic cell therapy can relieve immunosuppression to some extent.展开更多
文摘目的了解重型再生障碍性贫血(SAA)患者在免疫抑制治疗(IST)前、后外周血树突细胞(DC)亚群数量、比值的变化,测定外周血 T 细胞激活协同分子(CD80、CD86、CD40)在树突细胞及 B细胞表面的表达。方法用单克隆抗体三标法和流式细胞术检测26例发病期和13例 IST 后恢复的SAA 患者外周血髓系 DC 前体(pDC1)与淋系 DC 前体(pDC2)的数量、比例,并与15名正常对照比较。其中10例患者检测了治疗前、后2个月的 pDC1与 pDC2的数量。检测16例 SAA 患者及12名正常对照外刷血 DC 及 B 淋巴细胞表面 CD80、CD86、CD40的表达。结果正常对照组外周血 pDC 总量、pDC1、pDC2及 pDC1/pDC2比值分别为(0.72±0.08)%,(0.41±0.05)%,(0.30±0.05)%,1.58±0.18:而初发 SAA 患者为(0.96±0.18)%,(0.67±0.13)%.(0.32±0.06)%,2.70±0.32,pDC1显著增多(P<0.05),pDC1/pDC2比例明显失衡(P<0.01);恢复期 SAA 患者上述指标下降为(0.77±0.13)%,(0.43±0.10)%,(0.34±0.09)%,1.78±0.36,与正常对照组无差异(P 值均>0.05)。10例 SAA 患者治疗前 pDC1、pDC2及 pDC1/pDC2比值分别为(0.87±0.31)%,(0.35±0.09)%,2.65±0.40,治疗2个月后分别为(0.24±0.09)%,(0.14±0.04)%,2.16±0.26,pDC1、pDC2显著下降(P值均<0.05)。正常对照组外周血 DC 表面 CD80、CD86、CD40的表达分别为(1.61±0.84)%,(11.97±4.31)%,(0.56±0.45)%,而 SAA 患者分别为(9.14±4.08)%,(29.84±3.02)%,(7.04±3.79)%,SAA 患者 DC 表面 CD86表达明显高于正常对照(P<0.05)。正常对照组外周血淋巴细胞CD19、CD80、CD86、CD40的表达分别为(9.38±0.92)%,(2.57±0.44)%,(1.86±0.32)%,(7.34±1.22)%;而 SAA 患者分别为(11.12±2.26)%,(5.17±0.68)%,(5.98±0.96)%,(8.85±2.49)%,CD80^+细胞、CD86^+细胞比例明显高于正常对照(P 值分别为<0.05和0.01)。正常对照外周血 B 淋巴细胞 CD80、CD86、CD40的表达分别为(28.22±3.56)%,(8.04±0.66)%,(81.6±6.48)%;而 SAA患者分别为(23.06±3.73)%,(20.46±2.78)%,(81.57±5.29)%,SAA 患者 B 淋巴细胞上 CD86表达明显高�
基金Supported by the department of education fundation of hubei province (NO. 2003A006) the fundation of Tongji Medical College, Huazhong University of Seience and Technology (NO.2003-16)
基金supported by a grant from the Beijing Capital Development Foundation for Medical Sciences(No. 2007-2053)
文摘Objective： To explore the effects of dentritic cells on the peripheral blood lymphocyte subpopulations of metastatic breast cancer patients treated with chemotherapy. Methods： The current study involved 44 metastatic breast cancer patients treated with docetaxel-based chemotherapy. Among them, 25 cases were treated with dendritic cells derived from CD34＋ hematopoietic stem cells enriched autologous peripheral mononuclear cells after chemotherapy, and 19 cases received chemotherapy alone. Peripheral blood samples were collected from each patient before and after treatment, and lymphocyte subpopulations including CD3＋, CD3＋/CD4＋, CD3＋/CD8＋, CD3-/CD16＋56＋, CD3＋/CD16＋56＋, CD4＋/CD25＋, CD8＋/CD28-, CD8＋/CD28＋, CD4/CD8, DC1, DC2 and DC1/DC2 were analysed by a 3-color flow cytometric analysis. Results： The two treatment groups were well matched with regard to demographic and baseline disease characteristics. Comparing the changes of lymphocyte subpopulations between the two groups, it showed that the difference of the change of CD8＋/CD28-lymphocyte had statistic significance. The percentage of CD8＋/CD28-lymphocyte was lower in the chemotherapy＋DC group, but higher in the chemotherapy-alone group. Conclusion： As CD8＋/CD28-lymphocyte represent a kind of suppressive T lymphocyte, we conclude that dentritic cell therapy can relieve immunosuppression to some extent.
