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RhoA、CD4^(+)CD25^(+)调节性T细胞、MYBL2在胃癌患者中的表达及对预后和生存时间的影响
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作者 王芳 郑紫恒 李帅帅 《现代临床医学》 2024年第2期104-108,共5页
目的:探讨RhoA、CD4^(+)CD25^(+)调节性T细胞、成髓细胞瘤转录因子第2亚型(MYBL2)在胃癌患者中的表达及对预后和生存时间的影响。方法:选取2017年1月至2019年1月于本院就诊的134例胃癌患者术后癌组织标本作为研究对象,另选取其中62例胃... 目的:探讨RhoA、CD4^(+)CD25^(+)调节性T细胞、成髓细胞瘤转录因子第2亚型(MYBL2)在胃癌患者中的表达及对预后和生存时间的影响。方法:选取2017年1月至2019年1月于本院就诊的134例胃癌患者术后癌组织标本作为研究对象,另选取其中62例胃癌患者相应的癌旁组织标本及40例同期非胃癌患者正常胃黏膜组织标本进行对照,检测癌组织、癌旁组织、正常胃黏膜组织中RhoA、CD4^(+)CD25^(+)调节性T细胞、MYBL2的表达情况,分析其对胃癌预后及生存时间的影响。结果:RhoA,CD4^(+)CD25^(+)调节性T细胞、MYBL2在癌组织中的阳性率均明显高于癌旁组织和正常胃黏膜组织(P<0.05)。胃癌患者术后平均生存时间为(28.61±1.34)个月,其中RhoA、CD4^(+)CD25^(+)调节性T细胞、MYBL2阳性患者的生存时间均短于阴性患者(P<0.05)。RhoA(+)、CD4^(+)CD25^(+)调节性T细胞(+)、MYBL2(+)是胃癌患者预后的危险因素(P<0.05)。结论:检测RhoA,CD4^(+)CD25^(+)调节性T细胞、MYBL2的表达可作为胃癌病情严重程度、预后及生存时间评估的重要补充手段。 展开更多
关键词 RHOA ^cd4^(+)cd25^(+)调节性t细胞 MYBL2 胃癌 预后 生存时间
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浆细胞性乳腺炎患者外周血CD4^+CD25^+CD127^-调节性T细胞变化 被引量:31
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作者 付嘉 熊斌 +3 位作者 司传平 方艳秋 谭岩 李继斌 《中国免疫学杂志》 CAS CSCD 北大核心 2013年第8期821-824,共4页
目的:观察浆细胞性乳腺炎(Plasma cell mastitis,PCM)患者外周血CD4+CD25+CD127-调节性T细胞(CD4+CD25+CD127-Treg)数量和功能变化,以探讨PCM免疫病理机制。方法:将58例浆细胞乳腺炎患者分成三组:其中急性组13例(22%)、亚急性组25例(43%... 目的:观察浆细胞性乳腺炎(Plasma cell mastitis,PCM)患者外周血CD4+CD25+CD127-调节性T细胞(CD4+CD25+CD127-Treg)数量和功能变化,以探讨PCM免疫病理机制。方法:将58例浆细胞乳腺炎患者分成三组:其中急性组13例(22%)、亚急性组25例(43%)和慢性组20例(34%)。并设正常对照组20例及乳腺癌对照组16例。以流式细胞术检测各型PCM患者外周血中CD4+CD25+CD127-Treg细胞百分率;实时荧光定量RT-PCR检测转录因子Foxp3表达及ELISA检测TGF-β水平。结果:三组PCM组与正常组相比,外周血CD4+CD25+CD127-Treg数量,外周血PBMC中Foxp3表达及血浆TGF-β水平均下降(P<0.05),其中急性PCM组下降最为明显(P<0.01),乳腺癌组三项指标均升高(P<0.05)。结论:浆细胞性乳腺炎患者的CD4+CD25+CD127-Treg数量及功能有所下降。 展开更多
关键词 浆细胞性乳腺炎 ^cd4^+cd25^+cd127^-调节性细胞 FOXP3
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卵巢癌患者外周血CD4^+ CD25^+ CD127^-调节性T细胞的检测及其临床意义 被引量:3
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作者 于晓伟 张松灵 +3 位作者 费君伟 王丽娜 温岩 朱凤全 《中国老年学杂志》 CAS CSCD 北大核心 2008年第5期487-489,共3页
目的探讨卵巢癌患者外周血CD4+CD25+CD127-调节性T细胞数量的变化。方法采集30例卵巢癌患者和10例健康人的外周抗凝血,应用CD4(PE-CY5),CD25(FITC),CD127(PE)等特异性荧光抗体标记后,通过流式细胞仪对CD4+CD25+CD127-调节性T细胞进行三... 目的探讨卵巢癌患者外周血CD4+CD25+CD127-调节性T细胞数量的变化。方法采集30例卵巢癌患者和10例健康人的外周抗凝血,应用CD4(PE-CY5),CD25(FITC),CD127(PE)等特异性荧光抗体标记后,通过流式细胞仪对CD4+CD25+CD127-调节性T细胞进行三色荧光抗体检测。结果卵巢癌患者的外周血中CD4+CD25+CD127-调节性T细胞的百分比明显高于正常人(P<0.05),其中卵巢癌患者外周血调节性T细胞的比例高达4.39%±1.36%,而正常人仅为0.77%±0.09%。结论CD4+CD25+CD127-调节性T细胞的比例增加可能引起卵巢癌免疫逃逸,并可能在卵巢癌的发生发展中起了重要作用。 展开更多
关键词 卵巢癌 ^cd4^+ ^cd25^+ ^cd127^-调节性t细胞 免疫逃逸
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An Association between Immunosenescence and CD4^+CD25^+ Regulatory T Cells: A Systematic Review 被引量:10
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作者 LING WANG YAN XIE LI-JING ZHU TING-TING CHANG YAN-QING MAO JIE LI 《Biomedical and Environmental Sciences》 SCIE CAS CSCD 2010年第4期327-332,共6页
Objective Age-related increment of the prevalence of CD4^+CD25^+ regulatory T (Treg) cells were described controversially, and whether such changes explain immune dysfunction in the elderly is still unclear. The a... Objective Age-related increment of the prevalence of CD4^+CD25^+ regulatory T (Treg) cells were described controversially, and whether such changes explain immune dysfunction in the elderly is still unclear. The aim of this systematic review is to evaluate the role of the Tregs in immunosenescence. Methods Medline and manual searches were performed to identify all published epidemiological and animal studies investigating the efficacy of the association between immunosenescence and Treg cells. Results It was founded that the frequency, phenotypic characteristics, and number/function of Tregs were altered significantly with aging. Medical conditions in individuals with advanced ageas well as apoptosis intensity of Treg cells had an impact on the accumulation of Tregs which in turn could deteriorate cytotoxic activity of CD8+ T and NK cells and production of IL-2. The range of immune cells that could be suppressed by Treg cells was quite wide and covered CD4^+CD25^+ T cells, NK cells, dendritic cells and even monocytes. These changes were observed both in humans and experimental animals. Besides, it was believed that frequency of Tregs increased with age and was accompanied by intensified suppressive activity for Tregs in patients, for example, with Alzheimer disease (AD) and Parkinson disease (PD). The impaired condition of CD4+ T cells, so-called immunosenescence, rendered transplant recipients less responsive to an allogeneic kidney graft, an effect that was limited to transplant recipients who were aged over 60 years. Conclusions Treg cells are associated with immunosenescence. All these changes contribute to the aging-related decline of immune responses and lead to the higher risk of immune-mediated diseases, cancer or infections in aged individuals. 展开更多
关键词 Aging IMMUNOSENESCENCE ^cd4^+cd25^+ t cell treg Case-control studies Cohort studies Cross-sectional studies
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Analysis of CD4^+CD25^+ Regulatory T Cells and Foxp3 mRNA in the Peripheral Blood of Patients with Asthma 被引量:15
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作者 薛克营 周咏明 +2 位作者 熊盛道 熊维宁 唐滔 《Journal of Huazhong University of Science and Technology(Medical Sciences)》 SCIE CAS 2007年第1期31-33,共3页
The changes of CD4^+CD25^+ regulatory T cells (CD4^+CD25^+ Treg) and Foxp3 mRNA in peripheral blood mononuclear cells (PBMCs) from patients with asthma were investigated in order to elucidate the possible role... The changes of CD4^+CD25^+ regulatory T cells (CD4^+CD25^+ Treg) and Foxp3 mRNA in peripheral blood mononuclear cells (PBMCs) from patients with asthma were investigated in order to elucidate the possible roles of CD4^+CD25^+ Treg in the development of asthma. The peripheral blood samples were collected from 29 healthy controls (normal control group) and 78 patients with asthma which included 30 patients in exacerbation group, 25 patients in persistent group, and 23 patients in remission group. By using flow cytometry and RT-PCR, the CD4^+CD25^+ Treg ratio and Foxp3 mRNA in PBMCs were detected. The CD4^+CD25^+ Treg ratio and Foxp3 mRNA in PBMCs of exacerbation and persistent groups were lower than that of remission and normal control groups (P〈0.05). Although the CD4^+CD25^+ Treg ratio and Foxp3 mRNA of remission group were also lower than that of normal control group, there was no significant difference between them (P〉0.05). As compared with persistent group, exacerbation group had lower CD4^+CD25^+ Treg ratio and Foxp3 mRNA (P〈0.05). It was indicated that the decrease of CD4^+CD25^+ Treg ratio and its function in PBMCs may be responsible for pathogenesis of asthma. 展开更多
关键词 AStHMA peripheral blood mononuclear cells ^cd4^+cd25^+ regulatory t cells Foxp3 mRNA
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人CD4^+CD25^+T细胞和CD4^+CD25^-T细胞蛋白质组的双向电泳分析 被引量:3
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作者 彭双发 吴军 +7 位作者 殷剑宁 郑峻松 王贵波 贺伟峰 陈希炜 易绍萱 袁军 解志杰 《第三军医大学学报》 CAS CSCD 北大核心 2003年第6期492-494,共3页
目的 用双向电泳技术分析人CD4+ CD2 5 + T细胞和CD4+ CD2 5 -T细胞表达的蛋白质组 ,建立二者之间的差异表达谱。方法 从人脾脏分选CD4+ CD2 5 + T细胞和CD4+ CD2 5 -T细胞 ,用双向电泳技术分析两种细胞蛋白质组的表达差异。结果 分... 目的 用双向电泳技术分析人CD4+ CD2 5 + T细胞和CD4+ CD2 5 -T细胞表达的蛋白质组 ,建立二者之间的差异表达谱。方法 从人脾脏分选CD4+ CD2 5 + T细胞和CD4+ CD2 5 -T细胞 ,用双向电泳技术分析两种细胞蛋白质组的表达差异。结果 分选细胞纯度分别为CD4+ CD2 5 + T细胞 82 .3 % ,CD4+ CD2 5 -T细胞 96.5 % ,双向电泳分析发现有 4个蛋白点明显仅于CD4+ CD2 5 + T细胞检测到表达 ,有 9个蛋白点明显仅于CD4+ CD2 5 -T细胞检测到表达。结论 CD4+ CD2 5 + T细胞和CD4+ CD2 5 展开更多
关键词 ^cd4^+cd25^+调节性t细胞 蛋白质组 双向电泳
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Depletion of CD4^+CD25^+ regulatory T cells can promote local immunity to suppress tumor growth in benzo[a]pyrene-induced forestomach carcinoma 被引量:9
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作者 Yi-Ling Chen Jung-Hua Fang +1 位作者 Ming-Derg Lai Yan-Shen Shan 《World Journal of Gastroenterology》 SCIE CAS CSCD 2008年第38期5797-5809,共13页
AIM: To elucidate the distribution of CD4^+CD25^+ regulatory T cells (Tregs) in different lymphoid tissues and its local enhancement on tumor growth before and after depletion of CD4^+CD25^+ Tregs. METHODS: Fe... AIM: To elucidate the distribution of CD4^+CD25^+ regulatory T cells (Tregs) in different lymphoid tissues and its local enhancement on tumor growth before and after depletion of CD4^+CD25^+ Tregs. METHODS: Female ICR mice were garaged with benzo[a]pyrene (BaP) to induce forestomach carcinoma. CD4^+CD25^+ Tregs were intraperitoneally depleted with monoclonal antibody PC61. These mice were divided into BaP-only, BaP + IgG, BaP + PC61, and control groups. The forestomach of mice was dissected for histological analysis, and tunnel test was performed for apoptosis of tumor cells. CD4^+CD25^+ Tregs were sorted from different lymphoid tissues and expression of Foxp3, IL-10, and chemokine receptors was analyzed by flow cytometry, semi-quantitative and veal-time polymerase chain reaction. RESULTS: The mice gavaged with only BaP showed increased forestomach papilloma and carcinoma at wk 16 and 32. The proportion of CD4^+CD25^+ Tregs was significantly higher in peri-stomach regional lymph nodes than in other lymphoid tissues. These CD4^+CD25^+ Tregs in regional lymph nodes expressed higher levels of Foxp3 and IL-10, enriched in the CD62L-subset, and CCR1 and CCR5 chemokine receptors. In mice gavaged with BaP + PC61, the number of tumor nodules and tumor volume decreased significantly with massive infiltrating cells and apoptosis of tumor cells. In the draining regional lymph nodes, the number of CD4^+CD25^+ Tregs also decreased significantly. CONCLUSION: Inducible and activated CD4^+CD25^+ Tregs in the draining regional lymph nodes suppress host local immunity during tumor growth. Depletion of CD4^+CD25^+ Tregs can promote host local immunity to suppress tumor growth. 展开更多
关键词 ^cd4^+cd25^+ regulatory t cells Forestomach tumor FOXP3
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CD4^+ CD25^+ Foxp3^+及CD4^+ CD25^- Foxp^(3+)调节性T细胞在小鼠衰老过程中的变化规律 被引量:2
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作者 高琦 马湉 +2 位作者 张霞 姜杨 张利宁 《山东大学学报(医学版)》 CAS 北大核心 2008年第10期927-930,共4页
目的分析小鼠脾细胞中CD4+CD25+Foxp3+及CD4+CD25-Foxp3+调节性T细胞随小鼠年龄增长的变化,探讨调节性T细胞与衰老的关系。方法2个月(青年)、6个月(中年)和15个月(老年)小鼠各5只,无菌取脾脏制备单个脾细胞悬液,首先用PECy5-CD4抗体和FI... 目的分析小鼠脾细胞中CD4+CD25+Foxp3+及CD4+CD25-Foxp3+调节性T细胞随小鼠年龄增长的变化,探讨调节性T细胞与衰老的关系。方法2个月(青年)、6个月(中年)和15个月(老年)小鼠各5只,无菌取脾脏制备单个脾细胞悬液,首先用PECy5-CD4抗体和FITC-CD25抗体进行细胞表面染色,PBS洗涤后,经打孔液和固定液处理,最后用PE-Foxp3抗体进行核内染色,并用流式细胞仪检测CD4+调节性T细胞的变化。结果脾脏中CD4+T细胞的数量在不同年龄小鼠间变化不大,CD4+T细胞中CD4+CD25+T细胞的数量也无明显改变,但随小鼠年龄的增长CD4+Foxp3+T细胞的数量明显升高,15个月小鼠CD4+Foxp3+T数量高达(16.83±0.44)%,明显高于2个月和6个月小鼠(P<0.01)。随着年龄的增长CD25+Foxp3+调节性T细胞数量逐渐减低,CD25+Foxp3+T细胞在15个月和6个月小鼠脾细胞中的数量明显低于2个月小鼠(P<0.05);而CD25-Foxp3+调节性T瞎胞的数量随着年龄的增长持续升高(P<0.01);随着年龄的增长小鼠脾细胞中CD4+CD25+Foxp3+T细胞与CD4+CD25-Foxp3+T细胞的比值呈下降趋势。结论小鼠衰老过程中CD4+CD25+Foxp3+T细胞的数量明显下降,而CD4+CD25-Foxp3+T细胞的数量明显上升,提示这两群调节性T细胞亚群在小鼠衰老中可能发挥不同作用。 展开更多
关键词 ^cd4^+cd25^+Foxp3^+t细胞 ^cd4^+cd25^-Foxp3^+t细胞 衰老 小鼠
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原因不明复发性流产与蜕膜CD4^+ CD25^+ T调节细胞和CD8^+ CD28^- T细胞的关系 被引量:4
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作者 蒋国静 邱丽华 林其德 《现代妇产科进展》 CSCD 北大核心 2008年第12期894-896,共3页
目的:探讨原因不明复发性流产(unexplained recurrent spontaneous abortion,URSA)与蜕膜CD4+ CD25+ T细胞和CD8+ CD28-T细胞的关系。方法:采用流式细胞四色荧光法,检测原因不明复发性流产17例(URSA组)和正常早孕人流20例(对照组)的蜕膜... 目的:探讨原因不明复发性流产(unexplained recurrent spontaneous abortion,URSA)与蜕膜CD4+ CD25+ T细胞和CD8+ CD28-T细胞的关系。方法:采用流式细胞四色荧光法,检测原因不明复发性流产17例(URSA组)和正常早孕人流20例(对照组)的蜕膜CD4+ CD25+ T细胞及其FoxP3(+)表达,CD8+ CD28- T细胞及其表面CD95、CD95L表达。结果:两组蜕膜中CD4+ CD25+ T细胞比例无明显差异(P>0.05),URSA组蜕膜CD4+ CD25+ T细胞中FoxP3阳性率明显低于对照组(P<0.0001)。两组蜕膜CD8+ CD28- T细胞比例及其细胞表面CD95和CD95L的阳性表达率均无明显差异(P>0.05);结论:蜕膜CD4+ CD25+ FoxP3(+)T调节细胞明显减少,是导致URSA患者母胎界面免疫耐受异常的重要原因。 展开更多
关键词 流产 复发性 FoxP3 ^cd4^+cd25^+t细胞 ^cd8^+cd28^-t钿胞
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Changes of CD4^+CD25^+ Regulatory T Cells in Patients with Acute Coronary Syndrome and the Effects of Atorvastatin 被引量:10
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作者 胡珍娉 李大主 +1 位作者 胡英锋 杨克平 《Journal of Huazhong University of Science and Technology(Medical Sciences)》 SCIE CAS 2007年第5期524-527,共4页
The function of CD4+CD25+ regulatory T lymphocytes (Treg) in patients with acute coronary syndrome (ACS) and the effects of atorvastatin were investigated. Forty-eight patients with ACS were randomly divided int... The function of CD4+CD25+ regulatory T lymphocytes (Treg) in patients with acute coronary syndrome (ACS) and the effects of atorvastatin were investigated. Forty-eight patients with ACS were randomly divided into two groups: group C receiving conventional therapy (n=24), and group C+A receiving conventional therapy+atorvastatin (10 mg/day, n=24). T lymphocytes from ACS patients (before and 2 weeks after the treatment) or 18 healthy subjects were separated and the flow cytometry was used to measure the percentage of Treg. The inhibitory ability of Treg on effector T cells was determined by mixed lymphocyte reaction (MLR). ELISA was used to measure the serum levels of cytokines (IL-10, TGF-β1 and IFN-γ) before and after treatment. The results showed that as compared with normal control group, Treg percentage was decreased significantly (P〈0.01), the inhibitory ability of Treg on the T lymphocytes proliferation was reduced (P〈0.01), IFN-γ levels were increased and IL-10 and TGF-β1 levels were lowered in ACS patients. After treatment with atorvastatin, Treg percentage and the inhibitory ability of Treg on T lymphocytes proliferation were significantly increased in ACS patients. Serum IFN-γ was decreased significantly, while IL-10 and TGF-β1 were elevated significantly as compared with the non-atorvastatin group. The number of Treg was positively correlated with serum TGF-β1, but negatively with serum IFN-γ and CRP. It was concluded that ACS was associated with decreased number and defected function of Treg, which may play an important role in initiating immune-inflammatory response in ACS. The inhibitory effects of atorvastatin on inflammation in ACS may be due to its beneficial effects on Treg and restoration of immune homeostasis. 展开更多
关键词 acute coronary syndrome regulatory ^cd4^+cd25^+ t lymphocytes CYtOKINE AtORVAStAtIN
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IL-7联合IL-2对脐血CD4^+CD25^-T细胞体外诱导扩增影响的研究 被引量:4
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作者 仉洁 郝京生 +4 位作者 李俊甫 邢龙龙 刘志文 钟理 刘薇 《中国免疫学杂志》 CAS CSCD 北大核心 2014年第7期879-883,892,共6页
目的:初步探讨IL-7联合IL-2对脐血CD4+CD25-T细胞体外扩增的促进作用,建立稳定的体外培养扩增脐血CD4+CD25-Tregs的培养体系,比较诱导扩增后的CD4+CD25+Tregs和自然分选的CD4+CD25+Tregs对PBMCs功能活性的影响。方法:采用免疫磁珠分选... 目的:初步探讨IL-7联合IL-2对脐血CD4+CD25-T细胞体外扩增的促进作用,建立稳定的体外培养扩增脐血CD4+CD25-Tregs的培养体系,比较诱导扩增后的CD4+CD25+Tregs和自然分选的CD4+CD25+Tregs对PBMCs功能活性的影响。方法:采用免疫磁珠分选法分选出脐血CD4+CD25-T细胞和CD4+CD25+T细胞;加入不同浓度的细胞因子IL-7结合适当浓度的IL-2作为诱导剂,分析IL-7体外诱导CD4+CD25-T细胞增殖的有效性及最适浓度。我们利用流式细胞术检测体外扩增后的CD4+CD25-T细胞表型变化;MTS法检测体外诱导扩增的CD4+CD25+Tregs及自然分选的CD4+CD25+Tregs分别对成人外周血中单个核细胞增殖的抑制作用;RT-PCR方法分析体外诱导扩增的CD4+CD25+Tregs及自然分选的CD4+CD25+Tregs FOXP3基因、IL-10基因和TGF-β基因的cDNA表达的变化。结果:经3周体外培养、各组细胞均有明显的扩增。IL-7诱导组的扩增最强。体外抑制试验显示体外扩增的Tregs对成人外周血中单个核细胞有明显的抑制作用,IL-7联合IL-2诱导CD4+CD25-T细胞生成的CD4+CD25+Tregs具有较自然分选的CD4+CD25+Tregs稍弱的免疫抑制功能,其中IL-7浓度为4 ng/ml,IL-2浓度为2 000 U/ml时诱导CD4+CD25-T细胞生成的CD4+CD25+Tregs杀伤活性最强。结论:成功建立了CD4+CD25+Tregs的体外培养体系,联合应用IL-7、大剂量的IL-2和CD3/CD28单抗是体外诱导扩增CD4+CD25-T细胞成为CD4+CD25+Tregs的优选方法,并且扩增倍数高、可持续高表达CD4及CD25细胞表型。 展开更多
关键词 白介素7 脐血 ^cd4^+cd25^+t细胞 调节性t细胞
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CD4^+CD25^+调节性T细胞的发育与胸腺CD4^-CD25^+细胞关联性的探讨 被引量:4
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作者 肇静娴 曾耀英 《中国病理生理杂志》 CAS CSCD 北大核心 2005年第7期1406-1410,共5页
目的:探讨CD4+CD25+调节性T细胞(CD4+CD25+regulatoryTcells,CD4+CD25+Tr)的发育及其与胸腺CD4-CD25+细胞的关系。方法:以流式细胞术检测小鼠从出生至发育成熟过程中,胸腺、脾脏、淋巴结和外周血中CD4+CD25+Tr比例变化,以及胸腺CD4-CD25... 目的:探讨CD4+CD25+调节性T细胞(CD4+CD25+regulatoryTcells,CD4+CD25+Tr)的发育及其与胸腺CD4-CD25+细胞的关系。方法:以流式细胞术检测小鼠从出生至发育成熟过程中,胸腺、脾脏、淋巴结和外周血中CD4+CD25+Tr比例变化,以及胸腺CD4-CD25+细胞比例变化;通过磁激活细胞分选(MACS)从小鼠淋巴结纯化CD4+CD25+T和CD4+CD25-T细胞,经CFDA-SE标记,以多种刺激形式诱导增殖。结果:小鼠出生1d到10周的发育过程中,胸腺CD4+CD25+Tr比例一直比较恒定,但在脾脏、淋巴结和外周血,随鼠龄增加而不断升高,从1d龄到1周时升高最迅速,其后的升高速度逐渐减慢,10周龄时达平台期。胸腺中CD4-CD25+细胞在出生1d的小鼠比例非常高,1d龄到1周龄期间迅速下降,10周龄时达平台期。ConA不能诱导CD4+CD25+Tr和CD4+CD25-T细胞增殖,但CD4+CD25+Tr出现一过性细胞增大;佛波醇酯加离子霉素能诱导CD4+CD25+Tr和CD4+CD25-T细胞增殖;包被的抗CD3抗体加可溶性抗CD28抗体能刺激CD4+CD25-T细胞增殖,但CD4+CD25+Tr不增殖,加入高浓度IL-2,CD4+CD25-T细胞增殖更强,CD4+CD25+Tr出现增殖。结论:胸腺CD4-CD25+细胞很有可能是CD4+CD25+Tr的前体。 展开更多
关键词 ^cd4^+cd25^+ 调节性t细胞 胸腺 ^cd4^-cd25^+细胞
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Increase of CD4^+CD25^+ T cells in Smad3^(-/-) mice 被引量:3
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作者 Zi-Bing Wang Yu-Fang Cui +7 位作者 Yu-Qing Liu Wei Jin Han Xu Zhu-Jun Jiang Ya-Xin Lu Ying Zhang Xiao-Lan Liu Bo Dong 《World Journal of Gastroenterology》 SCIE CAS CSCD 2006年第15期2455-2458,共4页
AIM: To investigate the changes of lymphocyte subpopulations, especially CD4^+CD25^ T regulatory cells in Smad3^-/- mice. METHODS: Hematological changes and changes of lymphocyte subpopulations were detected in Sm... AIM: To investigate the changes of lymphocyte subpopulations, especially CD4^+CD25^ T regulatory cells in Smad3^-/- mice. METHODS: Hematological changes and changes of lymphocyte subpopulations were detected in Smad3"/- mice using cell counter and flow cytometry, respectively, and compared to their littermate controls. RESULTS: The numbers of neutrophils and lymphocytes in peripheral blood were significantly increased in Smad3^-/- mice compared to littermate controls. CD19^+ expressing cells in blood and spleen, and CD8^+ T cells in thymus were all markedly decreased in Smad3^-/- mice. More important, Smad3^-/- mice had an increased population of CD4^+CD25^+ T cells in peripheral lymphoid tissues, including thymus, spleen, and lymph nodes. CONCLUSION: These observations suggest that the changes of lymphocyte subpopulations might play a role in susceptibility to inflammation of Smad3^-/- mice. 展开更多
关键词 ^cd4^+cd25^+ t cells Lymphocyte subpopulation SMAD3 tGF-β signaling
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胃癌患者PBMCs中CD4^+ CD25^+ T细胞体外增殖及对CD4^+ CD25^- T细胞增殖的影响 被引量:1
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作者 王凌云 陈梅 +2 位作者 朱兆华 彭辉 吴长有 《中国病理生理杂志》 CAS CSCD 北大核心 2006年第11期2202-2206,共5页
目的:探讨胃癌患者外周血单个核细胞(PBMCs)中的CD4+CD25+T细胞体外增殖及对CD4+CD25-T细胞增殖的影响。方法:以免疫磁性分离方法(MACS)分选出胃癌患者外周血单个核细胞中的CD4+CD25+T及CD4+CD25-T细胞后,用流式细胞仪分析细胞的纯度及... 目的:探讨胃癌患者外周血单个核细胞(PBMCs)中的CD4+CD25+T细胞体外增殖及对CD4+CD25-T细胞增殖的影响。方法:以免疫磁性分离方法(MACS)分选出胃癌患者外周血单个核细胞中的CD4+CD25+T及CD4+CD25-T细胞后,用流式细胞仪分析细胞的纯度及活力;再以小鼠抗人CD3单抗、小鼠抗人CD28单抗及rh IL-2作为共刺激因子,观察与CD4+CD25-T细胞共培养时,CD4+CD25+T细胞对CD4+CD25-T细胞增殖的抑制效应。结果:(1)分选后健康对照组及胃癌患者PBMC中CD4+CD25+T细胞纯度分别为83.8%±1.84%、84.13%±2.77%,两者相比,无显著差异(P>0.05);(2)经MACS分选后正常对照组与胃癌患者CD4+CD25+T细胞活力分别为98.52%±0.72%、97.80%±0.95%,两者相比,无显著差异(P>0.05);(3)无论是健康对照还是胃癌患者的CD4+CD25+T均具有明显抑制效应性T细胞如CD4+CD25-T细胞的增殖,随着CD4+CD25+T细胞数的增加,这种抑制增殖的能力也相应增加,当CD4+CD25+∶CD4+CD25-T达1∶1时,抑制率最大达到50%。结论:MACS分选法能够分选出高纯度及活力的CD4+CD25+T细胞,分选后CD4+CD25+T细胞在体外均能抑制CD4+CD25-T细胞增殖,且这种抑制效应呈一定效靶比关系。 展开更多
关键词 胃肿瘤 ^cd4^+cd25^+t细胞 ^cd4^+cd25^-t细胞 细胞增殖
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Influence of Danshen Injection on airway inflammation and CD4^+ CD25^+ regulatory T cells of asthmatic rats 被引量:6
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作者 Keying Xue Yongming Zhou +2 位作者 Shengdao Xiong Weining Xiong Dan Li 《Journal of Nanjing Medical University》 2006年第5期292-295,共4页
Objective: To investigate the influence of Danshen Injection on airway inflammation and CD4^+CD25^+ regulatory T cells(CD4^+CD25^+ Tr) of asthmatic rats, and elucidate the possible mechanism of Danshen Inject... Objective: To investigate the influence of Danshen Injection on airway inflammation and CD4^+CD25^+ regulatory T cells(CD4^+CD25^+ Tr) of asthmatic rats, and elucidate the possible mechanism of Danshen Injection in treatment of asthma. Methods: 30 Wister rats were randomly divided into control group, asthma group and Danshen Injection treated group. Bronchoalveolar lavage fluids (BALF) were collected, and cytology studies were conducted. Lung tissues were obtained and pathologic analyses were done with hematoxylin and eosin stain (HE). Flow cytometry was used to detect the CD4^+CD25^+ Tr ratio in peripheral blood mononuclear cells (PBMCs). Results: Total cell, the percentage of lymphocytes, neutrophils and eosinophils (Eos) in BALF of Danshen Injection-treated group were lower than that in asthma group (P〈0.05, P〈0.01). Compared with asthma group, less infiltration of inflammatory cells in lung tissues was observed in Danshen Injection-treated group. CD4^+CD25^+ Tr of asthma group was lower than that of control and Danshen Injection treated group (P〈0.05). Conclusion: Danshen Injection can suppress airway inflammation of asthmatic rats, probably by increasing the number of CD4^+CD25^+ Tr. 展开更多
关键词 Danshen Injection AStHMA airway inflammation ^cd4^+cd25^+ regulatory t cells
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外周血CD4^(+)CD25^(+)、CD8^(+)CD28^(+)调节性T细胞水平对早期宫颈癌患者腹腔镜根治术后预后的预测价值
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作者 曾海荣 黄丹 +1 位作者 张建军 华海琴 《中国临床新医学》 2024年第7期800-805,共6页
目的分析外周血CD4^(+)CD25^(+)、CD8^(+)CD28^(+)调节性T细胞水平对早期宫颈癌(CC)患者腹腔镜根治术后预后的预测价值。方法招募2018年9月至2020年9月于儋州市人民医院接受腹腔镜根治术治疗的早期CC患者204例,根据患者术后随访期间预... 目的分析外周血CD4^(+)CD25^(+)、CD8^(+)CD28^(+)调节性T细胞水平对早期宫颈癌(CC)患者腹腔镜根治术后预后的预测价值。方法招募2018年9月至2020年9月于儋州市人民医院接受腹腔镜根治术治疗的早期CC患者204例,根据患者术后随访期间预后情况分为预后不良组(43例)和预后良好组(161例)。比较两组临床资料。采用Spearman秩相关分析外周血CD4^(+)CD25^(+)调节性T细胞水平与CD8^(+)CD28^(+)调节性T细胞水平的相关性。采用多因素logistic回归分析早期CC患者腹腔镜根治术后预后不良的影响因素。采用受试者工作特征(ROC)曲线评估外周血CD4^(+)CD25^(+)、CD8^(+)CD28^(+)调节性T细胞水平对早期CC患者腹腔镜根治术后预后不良的预测价值。结果预后不良组CD4^(+)CD25^(+)调节性T细胞、癌胚抗原(CEA)、糖类抗原125(CA125)水平,术后切缘阳性占比以及术中宫旁浸润占比高于预后良好组,CD8^(+)CD28^(+)调节性T细胞水平低于预后良好组,差异有统计学意义(P<0.05)。Spearman秩相关分析结果显示,早期CC患者外周血CD4^(+)CD25^(+)调节性T细胞水平与CD8^(+)CD28^(+)调节性T细胞水平呈负相关(r_(s)=-0.478,P<0.05)。多因素logistic回归分析结果显示,较高的CEA、CA125、CD4^(+)CD25^(+)调节性T细胞水平是促进早期CC患者腹腔镜根治术后预后不良发生的独立危险因素(P<0.05),较高的CD8^(+)CD28^(+)调节性T细胞水平是抑制早期CC患者腹腔镜根治术后预后不良发生的独立保护因素(P<0.05)。ROC曲线分析结果显示,外周血CD4^(+)CD25^(+)、CD8^(+)CD28^(+)调节性T细胞水平能有效预测早期CC患者腹腔镜根治术后预后不良(P<0.05),两项指标联合可进一步提高预测效能[AUC(95%CI)=0.939(0.898~0.979),P<0.001],灵敏度和特异度分别为86.00%、88.20%。结论外周血CD4^(+)CD25^(+)、CD8^(+)CD28^(+)调节性T细胞水平与早期CC患者腹腔镜根治术后预后不良有关,二者能有效预测早期CC患者腹腔镜根治术后预后不良。 展开更多
关键词 宫颈癌 腹腔镜根治术 ^cd4^(+)cd25^(+)调节性t细胞 ^cd8^(+)cd28^(+)调节性t细胞 预后
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慢性丙型肝炎患者中CD4^+CD25^+CD127^-调节性T细胞的表达及意义 被引量:1
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作者 韩荔芬 林国贤 +3 位作者 陈怡 陈清 邱荣仙 郑玲 《临床和实验医学杂志》 2015年第7期562-565,共4页
目的探讨CD4^+CD25^+CD127^-调节性T细胞在慢性丙型肝炎(HCV)患者中的表达及其临床意义。方法收集HCV患者67例,并根据是否吸毒分为吸毒丙肝组35例和非吸毒丙肝组32例;健康体检人员32例作为对照。采用流式细胞仪检测患者外周血中CD^4+CD2... 目的探讨CD4^+CD25^+CD127^-调节性T细胞在慢性丙型肝炎(HCV)患者中的表达及其临床意义。方法收集HCV患者67例,并根据是否吸毒分为吸毒丙肝组35例和非吸毒丙肝组32例;健康体检人员32例作为对照。采用流式细胞仪检测患者外周血中CD^4+CD25^+CD127^-调节性T细胞的表达;应用实时荧光定量PCR的方法检测其HCV RNA含量。结果慢性HCV患者中的吸毒感染组与非吸毒感染组的外周血中CD4+CD25+CD127-调节性T细胞在CD4+T细胞中所占比率分别为:3.84±1.95%、4.44±1.67%,明显低于对照组6.10±1.65%(P<0.01);而吸毒组与非吸毒组慢性HCV患者血液CD4^+CD25^+CD127^-调节性T细胞的表达值相比差异无统计学意义;HCV患者抗病毒治疗前血液CD4^+CD25^+CD127^-调节性T细胞的表达值明显低于治疗后和正常对照组(P<0.01)。结论 HCV患者治疗前患者外周血CD4^+CD25^+CD127^-调节性T细胞的表达值较正常对照组明显降低,而在治疗有效后升高,说明CD4^+CD25^+CD127^-调节性T细胞参与了HCV患者的机体免疫过程,而CD4^+CD25^+CD127^-调节性T细胞在外周血中的表达水平可能成为监测HCV患者体内细胞免疫状态和机体抗病毒免疫应答的指标。 展开更多
关键词 丙型肝炎 ^cd4^+cd25^+cd127^-调节性t细胞 流式细胞术
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脑卒中患者外周血CD4^+CD25^+及CD4^+CD28^-T细胞的变化及临床意义 被引量:4
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作者 李定安 陈思宇 李红妮 《海南医学院学报》 CAS 2018年第23期2082-2085,2089,共5页
目的:研究脑卒中患者外周血CD4^+CD25^+及CD4^+CD28^-T细胞的变化及其与神经元损害标志物、炎症细胞因子、斑块稳定性指标的相关性。方法:选择在我院诊断为急性缺血性脑卒中的患者作为研究的脑卒中组,另取同期体检的健康志愿者作为对照... 目的:研究脑卒中患者外周血CD4^+CD25^+及CD4^+CD28^-T细胞的变化及其与神经元损害标志物、炎症细胞因子、斑块稳定性指标的相关性。方法:选择在我院诊断为急性缺血性脑卒中的患者作为研究的脑卒中组,另取同期体检的健康志愿者作为对照组。采集外周血并测定CD4^+CD25^+及CD4^+CD28^-T细胞的含量,采集血清并测定神经元损害标志物、炎症细胞因子、斑块稳定性指标的含量。结果:脑卒中组外周血中CD4^+CD25^+的含量以及血清中BDNF、IGF-1、IL-10、TGF-β1、TIMP2、Vaspin的含量低于对照组,外周血中CD4^+CD28^-T细胞的含量以及血清中NSE、VILIP-1、ET-1、IL-6、CX-CL12、VCAM-1、P-selectin、ox-LDL、CatS、ICTP、VEGF的含量的含量高于对照组;脑卒中组外周血中CD4^+CD25^+的含量与血清中BDNF、IGF-1、IL-10、TGF-β1、TIMP2、Vaspin的含量呈正相关,NSE、VILIP-1、ET-1、IL-6、CXCL12、VCAM-1、P-selectin、ox-LDL、CatS、ICTP、VEGF的含量呈负相关;外周血中CD4^+CD28^-T细胞的含量与血清中BDNF、IGF-1、IL-10、TGF-β1、TIMP2、Vaspin的含量呈负相关,NSE、VILIP-1、ET-1、IL-6、CXCL12、VCAM-1、P-selectin、ox-LDL、CatS、ICTP、VEGF的含量呈正相关。结论:脑卒中患者外周血CD4^+CD25^+及CD4^+CD28^-T细胞的变化能够加重神经元损害、促进炎症反应激活及斑块稳定性下降。 展开更多
关键词 脑卒中 ^cd4^+cd25^+t细胞 ^cd4^+cd28^-t细胞 炎症反应 斑块性质
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Correlation between CD4^+CD25^+Treg Cells and CCR4 in Nasopharyngeal Carcinoma 被引量:1
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作者 Yan-xin REN Jun SUI +5 位作者 Xin SONG Gee WAN WONG Jing MA Hong YAO Marie Chia-mi LIN Xiao-jiang LI 《Clinical oncology and cancer researeh》 CAS CSCD 2011年第2期106-113,共8页
OBJECTIVE CD4^+CD25^+ T regulatory (Treg) cells are a population of T cells which suppress an overactive immune system. CCR4 is a chemokine receptor involved in the recruitment of lymphocytes. Nasopharyngeal carci... OBJECTIVE CD4^+CD25^+ T regulatory (Treg) cells are a population of T cells which suppress an overactive immune system. CCR4 is a chemokine receptor involved in the recruitment of lymphocytes. Nasopharyngeal carcinoma (NPC) is resistant to immunosurveillance, owing to the increased number of tumor-infiltrating Treg cells which are recruited to the tumor bv CCR4. 展开更多
关键词 nasopharyngeal carcinoma ^cd4^+cd25^+ treg cells CCR4 flow cytometry tumor-infiltrating lymphocytes.
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Isolation and identification of CD4^+CD25^+ regulatory T cells in rat 被引量:1
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作者 Ling Lü Feng Zhang Liyong Pu Chao Jiang 《Journal of Nanjing Medical University》 2006年第4期238-241,共4页
Objective: To establish a stable and high efficient method for collection of CD4^+CD25^+ regulatory T cells from rats in vitro. Methods: CD4^+CD25^+ regulatory T cells were isolated from the rat splenic cells th... Objective: To establish a stable and high efficient method for collection of CD4^+CD25^+ regulatory T cells from rats in vitro. Methods: CD4^+CD25^+ regulatory T cells were isolated from the rat splenic cells through two steps by magic cell sorting (MACS) system. The first step was negative selection of CD4^+T cells by cocktail antibodies and anti-IgG magic microbeads, and the second step was positive selection of CD25^+T cells by anti-CD25 PE and anti-PE magic microbeads. The purity and viability of separated cells were measured by flow cytometry (FACS) and Trypan blue staining. The suppressive ability of seperated cells on the proliferation of CD4^+CD25^- T cells was assessed by cell proliferation assay. Results: The purity of negatively enriched CD4^+ T cells was 79%-87% (83.6%±2.5% ) , and the purity of positively enriched CD4^+CD25^+ T cells was 86%- 93% ( 90.2±1.8% ) with the viability of 92%~95% (92.8% ± 3.4% ). The enriched cells significantly suppressed the proliferation of CD4^+CD25^- T cells in mixed lymphocyte culture (P 〈 0.05). Conclusion: An effective method can be established for enrichment of CD4^+CD25^+ regulatory T cells in two steps by MACS, with satisfied cell purity, viability and function. 展开更多
关键词 magic cell sorting system ^cd4^+cd25^+ regulatory t cells flow cytometry technique RAtS
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