健康傣族人CD3+ CD4+和CD8+ T淋巴细胞绝对数正常值调查

目的了解德宏州健康傣族人群外周静脉血CD3 、CD4 、CD8 T淋巴细胞绝对数和CD4 /CD8 比值的正常值范围。方法应用流式细胞仪(FACSCount)检测253例健康傣族人的CD3 、CD4 、CD8 T淋巴细胞绝对数和CD4 /CD8 比值,并观察以上数值在性别和年龄上的差异。结果CD3 、CD4 、CD8 和CD4 /CD8 的正常值参考范围分别为(1 543±443)个/μl(、849±261)个/μl(、567±225)个/μl和1.63±0.55。CD3 、CD4 在性别和年龄组别间的差异均无统计学意义,而CD8 和CD4 /CD8 在年龄组别间的差异有统计学意义。结论初步建立了健康傣族人群CD3 、CD4 、CD8 和CD4 /CD8 的正常值参考范围,对于指导德宏州艾滋病的诊断及治疗工作有重要意义。     

健康傣族人CD3+ CD4+和CD8+ T淋巴细胞绝对数正常值调查

目的 了解德宏州健康傣族人群外周静脉血CD3^＋、CD4^＋、CD8^＋T淋巴细胞绝对数和CD4^＋／CD8^＋比值的正常值范围。方法应用流式细胞仪（FAcscount）检测253例健康傣族人的CD3^＋、CD4^＋、CD8^＋T淋巴细胞绝对数和CD4^＋／CD8^＋比值，并观察以上数值在性别和年龄上的差异。结果 CD3^＋、CD4^＋、CD8^＋和CD4^＋／CD8^＋的正常值参考范围分别为（1543±443）个/μl、（849±261）个/μl、（567±225）个/μl和1．63±0．55。CD3^＋、CD4^＋在性别和年龄组别间的差异均无统计学意义，而CD8^＋和CD4^＋／CD8^＋在年龄组别间的差异有统计学意义。结论 初步建立了健康傣族人群CD3^＋、CD4^＋、CD8^＋和CD4^＋／CD8^＋的正常值参考范围，对于指导德宏州艾滋病的诊断及治疗工作有重要意义。     

CD4+ T淋巴细胞亚群在原发性高血压中作用的研究进展

原发性高血压是心脑血管疾病的危险因素,CD4+T细胞诱导的炎症免疫反应是其重要发病机制。近年来,有关CD4+T淋巴细胞亚群的研究不断取得新进展。该文就CD4+T淋巴细胞亚群在原发性高血压中作用的研究进展进行综述。     

肺癌患者外周血CD8+CD28+、CD4+CD25+调节性T淋巴细胞水平变化及意义

目的观察肺癌患者外周血CD8+CD2+8、CD4+CD2+5调节性T淋巴细胞水平变化,并探讨其临床意义。方法采用流式细胞术检测86例肺癌(肺癌组)、65例肺良性肿瘤患者(良性组)及50例健康体检者(对照组)外周血中的CD8+CD2+8、CD4+CD2+5调节性T淋巴细胞。结果肺癌组术前CD8+CD2+8、CD4+CD2+5调节性T淋巴细胞分别为17.35%±3.03%、9.65%±2.01%,术后分别为12.97%±2.29%、12.23%±2.19%;良性组分别为12.22%±2.22%、14.91%±2.49%,对照组分别为11.81%±2.19%、15.22%±2.55%;肺癌组手术前后、肺癌组与良性组、对照组比较,P均<0.01;肺癌组术后与对照组比较,P均<0.05。外周血CD8+CD2+8、CD4+CD2+5调节性T淋巴细胞水平与肺癌TNM分期及淋巴结转移有关(P均<0.05),与病理类型无关(P>0.05)。结论肺癌患者外周血中CD8+CD2+8调节性T淋巴细胞水平降低、CD4+CD2+5调节性T淋巴细胞水平升高;外周血CD8+CD2+8、CD4+CD2+5调节性T淋巴细胞水平检测有助于肺癌的临床分期及疗效判定。     

COPD患者CD4+/CD8+、CD8+CD28+ T淋巴细胞检测意义

目的分析慢性阻塞性肺疾病(COPD)患者CD4⁺/CD8⁺、CD8⁺CD28⁺调节性T淋巴细胞检测意义。 方法收集2018年6月至2019年6月于我院就诊收治的98例COPD患者的临床资料,随访18个月,根据患者生存情况分为存活组85例与死亡组13例,采用流式细胞术检测COPD患者CD4⁺/CD8⁺、CD8⁺CD28⁺调节性T淋巴细胞,应用ROC曲线分析CD4⁺/CD8⁺及CD8⁺CD28⁺调节性T淋巴细胞预测COPD患者死亡的价值。 结果两组患者PaO₂、FEV₁占预测值、有创机械通气例数所占比、CD4⁺/CD8⁺以及CD8⁺CD28⁺ T淋巴细胞占比存在统计学差异(P<0.05);多因素Logistic回归分析,PaO₂、FEV₁占预测值、有创机械通气、CD4⁺/CD8⁺、CD8⁺CD28⁺是COPD预后的独立危险因素(P<0.05);CD4⁺/CD8⁺、CD8⁺CD28⁺ T淋巴细胞水平预测COPD患者死亡的最佳截断值分别为1.76%、7.85%,二者联合预测COPD患者死亡的ROC曲线下面积(AUC)为0.913(95%CI: 0.862~0.947),明显高于单项CD4⁺/CD8⁺的AUC值(0.784, 95%CI: 0.602~0.850)及CD8⁺CD28⁺的AUC值(0.795,95%CI：0.596~0.861)。 结论COPD患者CD4⁺/CD8⁺、CD8⁺CD28⁺ T淋巴细胞与患者预后密切相关,二者联合检测对COPD患者预后有意义。     

增龄对人体外周血CD4+CD25+Foxp3+调节T细胞、CD4+T细胞及细胞因子表达的影响

目的探讨增龄对人体外周血CD4⁺CD25⁺Foxp3⁺调节T细胞(CD4⁺CD25⁺Foxp3⁺Treg)、CD4⁺T细胞及细胞因子表达的影响。方法选择青年人(20~45岁)、中老年人(50~75岁)及高龄老年人(≥80岁)各40例,分别检测3组外周血CD4⁺T、CD4⁺CD25⁺Foxp3⁺Treg的绝对计数,并计算后者占前者的百分比,同时检测并比较3组人群外周血IL-2、干扰素-γ(IFN-γ)、TNF-α、IL-10和IL-17水平。结果高龄老年组CD4⁺T细胞绝对计数较中老年组与青年组显著下降(P<0.05);高龄老年组和中老年组外周血CD4⁺CD25⁺Foxp3⁺Treg绝对计数均明显高于青年组(P<0.05);中老年组CD4⁺CD25⁺Foxp3⁺Treg占CD4⁺T细胞百分比明显高于青年组,高龄老年组明显高于中老年组,差异均有统计学意义(P<0.05)。高龄老年组IL-2、IFN-γ和IL-17水平明显低于青年组和中老年组(P<0.05),中老年组IL-2明显低于青年组(P<0.05),高龄老年组IL-10水平明显高于青年组和中老年组(P<0.05),3组TNF-α水平差异无统计学意义(P>0.05)。结论中老年以后人体外周血CD4⁺CD25⁺Foxp3⁺Treg绝对计数明显增高,随着增龄,其占CD4⁺T细胞百分比逐渐升高。高龄老年人外周血CD4⁺T细胞绝对计数、IL-2、IFN-γ和IL-17水平明显下降,IL-10水平明显增高,说明老年人免疫功能进一步下降,衰老的微环境发生了改变。     

肝细胞癌患者肝脏组织中CD4+CD25+调节性T淋巴细胞的表达及意义

目的探讨CD4^＋CD25^＋调节性T淋巴细胞在肝细胞癌患者肝脏组织中的表达及意义。方法利用流式细胞仪对31例肝细胞癌患者肝脏组织及末梢静脉血、15份正常肝脏组织、48名正常人末梢静脉血中的CD4^＋CD25^＋调节性T淋巴细胞、CD8^＋T淋巴细胞进行定量及量化关系分析,同时对肝脏组织中CD4^＋CD25^＋调节性T淋巴细胞进行定位分析。结果肝组织CD4^＋CD25^＋调节性T淋巴细胞含量：肝细胞癌组肿瘤周围组织为10．8%±2．3%,远离肿瘤部位组织为4．6%±0．9%、15份正常人肝脏组织为6．0%±0．6%,肿瘤周围组织和远离肿瘤部位组织与正常对照组相比,t值分别为2．05和2．04,P值均＜0．05,差异有统计学意义。外周血中CD4^＋CD25^＋调节性T淋巴细胞含量：肝细胞癌组末梢静脉血中为9．4%±1．0%,正常对照组为12．9%±1．3%,t=13．05,P＜0．01,差异有统计学意义。在肿瘤周围随着CD4^＋CD25^＋调节性T淋巴细胞的增加,CD8^＋T淋巴细胞出现了减少的趋势。结论CD4^＋CD25^＋调节性T淋巴细胞通过对CD8^＋T淋巴细胞的抑制参与肝癌细胞抗肿瘤免疫的作用。     

中国HIV/AIDS患者CD+4 CD+8T淋巴细胞与外周血各组份间关系的研究

目的研究艾滋病病毒/艾滋病(HIV/AIDS)患者CD+4、CD+8T淋巴细胞数与外周血各组份间白细胞(WBC)、血小板(PLT)、血红蛋白(HGB)、粒细胞百分数(GR%)、淋巴细胞百分数(LY%)、LY的相关性,为临床治疗提供参考依据.方法 HIV/AIDS患者抗凝外周血513份,在6小时之内检测其血细胞分类和CD+4、CD+8T淋巴细胞计数,比较CD+4、CD+8T淋巴细胞计数与WBC、HGB、PLT、LY%、GR%和LY的相关性.结果 CD4/CD8全部倒置,其中CD4/CD8＜1者达94.7%;CD+4细胞数＜500/mm3与HGB(r＝0.160,P＜0.01)、PLT(r＝-0.014,P＜0.01)、GR%(r＝-0.281,P＜0.01)、LY%(r＝0.321,P＜0.01)、LY((r＝0.494,P＜0.01)相关均有非常显著的统计学意义;CD+8细胞数与WBC数(r＝0.112,P＜0.05)、HGB(r＝0.131,P＜0.01)、GR%(r＝-0.526,P＜0.01)、LY%(r＝0.569,P＜0.01)、LY(r＝0.904,P＜0.01)相关均有显著性;200/mm3＜CD+4细胞数＜500/mm3与LY(r＝0.279,P＜0.01)、PLT(r＝0.192,P＜0.01)相关有显著性,CD+4细胞数＜200/mm3与LY(r＝0.262,P＜0.01)、LY%(r＝0.279,P＜0.01)、GR%(r＝-0.294,P＜0.01)相关有显著性.结论 HIV/AIDS患者CD+4、CD+8T淋巴细胞数与外周血中HGB、LY%、LY呈正相关,与GR%呈负相关.CD4/CD8与HGB、PLA、LY相关无显著性.     

外周血CD4+CD69+ T细胞在AIHA患者中的表达及与疾病严重程度的相关性

目的:分析外周血CD4⁺CD69⁺ T淋巴细胞在自身免疫性溶血性贫血(AIHA)患者中的表达及与疾病严重程度的相关性。方法:回顾性分析42例AIHA患者的临床资料,包括缓解24例,溶血发作18例;另以25例体检健康人员为对照组。采用流式细胞仪检测外周血CD69⁺ T淋巴细胞,酶联免疫吸附试验法检测血浆CD69水平,实时荧光定量聚合酶链反应检测外周血CD4⁺T淋巴细胞CD69 mRNA的表达情况。结果:与对照组比较,溶血组CD3⁺CD69⁺和CD3⁺CD4⁺CD69⁺T淋巴细胞绝对值及CD3⁺CD8⁺CD69⁺/CD3⁺CD8⁺T淋巴细胞比值均明显升高(P<0.05);与对照组和缓解组比较,溶血组CD3⁺CD69⁺/CD3^+<...     

广西壮族自治区健康成年人T淋巴细胞亚群分类绝对计数及CD4/CD8比值调查

目的初步建立广西壮族自治区健康人群外周静脉血CD3、CD4、CD8T淋巴细胞绝对数值和CD4/CD8比值的参考范围.方法用流式细胞仪(FACSCalibur,FCS)、三色免疫荧光试剂和绝对计数管(TnTEST/TruCOUNT),检测110名广西健康成年人(16～56岁)静脉全血CD3、CD4、CD8T淋巴细胞绝对数值和CD4/CD8比值,并观察T淋巴细胞亚群分类计数在性别、年龄和民族上的差别.结果 110名健康成年人检测结果平均值CD3为524±541,CD4为823±305,CD8为601±248,CD4/CD8为1.49±0.53.进一步分析发现,CD4和CD4/CD8在民族分布上(汉族79名、壮族31名)的差异有显著的统计学意义(P＜0.05).结论这次初步建立CD3、CD4、CD8T细胞绝对数值和CD4/CD8比值正常参考范围,对于指导广西的艾滋病诊断及治疗工作有重要意义.     

Inhibition of Plasmodium falciparum growth in vitro by CD4+ and CD8+ T cells from non-exposed donors

T cells from most adult non-exposed donors, which express a memory phenotype (CD45RO+), can respond by proliferation to P. falciparum asexual stages in vitro. Such cells may have arisen from exposure to environmental organisms. To address the efficacy of such cells in eliminating parasites and investigate the mechanisms involved, we have used an in vitro assay where parasite growth can be precisely monitored in the presence of different cell preparations. Unfractionated peripheral blood mononuclear cells (PBMC) from both malaria-exposed and non-exposed donors inhibited parasite growth by up to 62% in a two day assay. Purified T cells in the presence of adherent cells had a similar effect, but purified T cells alone or adherent cells alone had minimal effect. Antigens released at the time of schizont rupture were maximally effective in stimulating interferon-γ (IFNγ) production. Neutralizing antibodies to IFNγ showed a partial reduction of growth inhibition in some individuals tested suggesting that different mechanisms may be operative. Neutralizing antibody to TNFα had a partial effect in combination with anti-IFNγ. Antibodies to IL-1 and IL-4 had no effect. T cell fractionation experiments showed that while purified CD4⁺ T cells from some donors produced IFNγ and inhibited parasite growth, purified CD8⁺ T cells could inhibit parasite growth to a greater extent without production of detectable IFNγ. Four parasitised red blood cell clones (CD4⁺, TCRαβ⁺, IFNγ producing) derived from non-exposed donors inhibited parasite growth to comparable levels, but one clone showed low production of IFNγ whilst the other three produced high levels. Our data show that T cells from non-exposed donors have the potential to eliminate malaria parasites via non-IFNγ dependent mechanisms. Such mechanisms may contribute to a degree of innate resistance to malaria in vivo, and may be able to be targeted by malaria vaccine programs.     

原发性肝癌患者外周血CD4+T、CD8+T、Tc17、Th17和Treg淋巴细胞的变化及其意义

目的 了解原发性肝癌(PLC)患者外周血CD4+T、CD8+T、Tc17、Th17和Treg淋巴细胞的变化.方法 2018年6月～2019年12月我院诊治的PLC患者83例(巴塞罗那临床肝癌分期A期25例,B期23例,C期18例,D期17例)和健康人35例,采用流式细胞技术检测外周血CD4+T、CD8+T及Tc17(C...     

Idiotype-specific T lymphocytes in monoclonal gammopathies: evidence for the presence of CD4+ and CD8+ subsets

Tumour-specific CD4⁺ T helper (Th) and CD8⁺ T cytotoxic (Tc) cells may participate in the control and eradication of tumour cells. In the present study, idiotype-specific stimulation of CD4⁺ and CD8⁺ blood T cells from patients with monoclonal gammopathy of undetermined significance and patients with untreated multiple myeloma stage I was examined. Activation was measured in the CD4⁺ and CD8⁺ subsets enriched by magnetic microbeads as the incorporation of ³H-thymidine and the secretion of interferon (IFN)-γ, interleukin (IL)-2 and IL-4 by single cells using the enzyme-linked immunospot assay. Idiotype-specific T cells were found in four of seven patients. Stimulation was mainly confined to the CD4⁺ subset in three of the four responding patients. This type of response was major histocompatibility complex (MHC) class II restricted as it could be inhibited by monoclonal antibodies against MHC class II (HLA-DR), but not against class I (HLA-ABC) molecules. Idiotype-specific CD8⁺ T cells were also demonstrated in these patients although at a lower frequency. One patient showed a strong and dominating activation of CD8⁺ T cells which could be blocked by antibodies against HLA-ABC but not against HLA-DR. Idiotype-specific CD4⁺ or CD8⁺ T cells were mainly of the type-1 subsets as judged by their secretion of IFN-γ and IL-2. Thus, this study provides evidence for the presence of idiotype-specific and MHC-restricted CD4⁺ and CD8⁺ T cells of the type-1 subsets in patients with monoclonal gammopathies. Such T cells with the potential to control the growth of tumour B cells may be a suitable target for immunotherapeutic interventions in patients.     

Mouse splenic CD4+ and CD8+ T cells undergo extensive apoptosis during a Plasmodium chabaudi chabaudi AS infection

The presence and phenotype of apoptotic lymphocytes was studied in spleen cell suspensions taken from CB6F1 mice infected with Plasmodium chabaudi chabaudi AS. High levels of apoptotic cells were found, associated with high parasitaemias and splenomegaly. This was also accompanied by expansion and disarray of spleen white pulp. Apoptosis levels lowered when parasitaemia was cleared, but were still higher than in normal mice. At this time, the spleen was diminishing in size and the white pulp was contracting and rearranging. When parasitaemia was patent, the cells most affected by apoptosis were CD4+ T cells followed by CD8+ T cells, and to a lesser extent B220+ B cells. When parasitaemia was cleared, CD8+ T cells and B220+ B cells returned to basal levels of apoptosis, while CD4+ T cells still had higher apoptosis levels than normal mice. A similar pattern of lymphocyte subpopulation apoptosis was found in infected BALB/c mice, despite the fact that, for this mouse model, it has been reported that B cells are the cells that are most affected by apoptosis. We consider that the high levels of apoptosis in CD4+ T cells when parasitaemias are still high are not easily explained by a normal mechanism of down regulation of the immune response.     

The role of CD4+ and CD8+ T cells in protective immunity to the murine nematode parasite Trichuris muris

The role ofCD4⁺ and CD8⁺ T cells in protective immunity to Trichuris muris was studied in CD4⁺ or CD8⁺ or both CD4⁺ and CD8⁺ T cell-depleted BALB/c mice. To assess in vivo depletion of T-cell subsets, CD4⁺ and CD8⁺ T cells in the Peyer's patches, the mesenteric lymph nodes (MLN), and the spleens of mice treated with T cell-specific monoclonal antibodies (MoAbs) were analysed by FACS. CD4⁺ T cells were selectively depleted in mice injected with anti-CD4 MoAb i.p. and injection of anti-CD8 MoAb resulted in selective depletion ofCD8⁺ T cells. The expulsion ofl. muris was inhibited in CD4⁺ T cell-depleted mice and numerous worms were detected in the large intestine on days 14 and 21 after infection, although no suppression of protective immunity to T. muris was observed in CD8⁺ T cell-depleted mice. Moreover, there was no difference in suppression of protective immunity to T. muris between CD4⁺ T cell-depleted and both CD4⁺ and CD8⁺ T cell-depleted mice. These results indicate that CD4⁺ T cells play a central role in protective immunity to T. muris infection.     

Quantitative alterations of CD8+ T cells in juvenile idiopathic arthritis patients in remission

The study was aimed to investigate whether quantities of CD8⁺ T cell subsets are normal in juvenile idiopathic arthritis (JIA) patients with disease remission compared to age-matched healthy donors (HD) and whether chronological age may have an impact on proportions of naive CD8⁺ T cells. CD8⁺ T cell subsets were analyzed in 17 JIA patients and 32 age-matched HD by flow cytometry. JIA patients showed lower CD3⁺CD8⁺ T cells compared to HD. Total counts of CD8⁺CD28⁺ and CD8⁺CD28⁺CD45RA⁺ T cells were inversely correlated to chronological age in JIA patients and HD. In JIA patients, percentages of CD8⁺CD28⁺CD45RA⁺ T cells and of CD62L-expressing CD8⁺CD28⁺CD45RA⁺ T cells showed a negative correlation with age. The trend to lower CD28⁺CD45RA⁺ T cell proportions in aged JIA patients in remission may reflect a disturbed T cell homeostasis independently of disease activity and may be due to an intrinsic effect in reconstitution of the peripheral T cells.     

Interferon-gamma and interleukin-4 reciprocally regulate CD8 expression in CD8+ T cells

The CD8 co-receptor can modulate CD8⁺ T cell function through its contributions to T cell receptor (TCR) binding and signaling. Here we show that IFN-γ and IL-4 exert opposing effects on the expression of CD8α mRNA and surface CD8 protein during CD8⁺ T cell activation. IL-4 caused down-regulation of surface CD8 on ovalbumin (OVA)_257–264-specific TCR-transgenic OT-I CD8⁺ T cells activated with OVA_257–264-coated antigen presenting cells or polyclonal stimuli, and on wild type CD8⁺ T cells activated with polyclonal stimuli. This effect was enhanced in each case when the cells lacked a functional IFN-γ or IFN-γR gene. When WT or IFN-γ-deficient OT-I CD8⁺ T cells were analyzed 9 days after co-injection with control or IL-4-expressing OVA⁺ tumor cells into RAG-2^−/−γc^−/− mice, CD8 levels were highest on WT donor cells from mice that received the control tumor and lowest on IFN-γ-deficient donor cells from mice that received the IL-4-expressing tumor. The latter CD8^low cells displayed markedly impaired binding of OVA_257–264/MHC tetramers and peptide/MHC-dependent degranulation. The data reveal an unexpected role for IFN-γ in tuning the CD8 co-receptor during primary CD8⁺ T cell activation both in vitro and in vivo.     

CD8+/CD57+ cells and apoptosis suppress T-cell functions in multiple myeloma

The aim of this study was to evaluate the role of CD8⁺/CD57⁺ lymphocytes in the immune dysregulation of multiple myeloma (MM). Cytofluorimetry of peripheral blood lymphocytes (PBL) purified from 39 MM patients showed an inverse relationship between the percentage of CD8⁺/CD57⁺ cells and CD4/CD8 ratio. Analysis of their activation antigens revealed that they were prevalently HLA-DR⁺ and Fas⁺. Removal of CD8⁺/CD57⁺ cells from MM PBL significantly improved cell proliferation and pokeweed mitogen (PWM)-induced polyclonal Ig production in vitro, whereas the addition of supernatants from patients' CD8⁺/CD57⁺ cell cultures to normal PBL suppressed both the PWM-driven Ig synthesis and the proliferative rate of stimulated PBL, supporting the contention that CD8⁺/CD57⁺ cells release in vitro an inhibitory factor that is directly involved in T-cell regulatory function. However, since the proliferative recovery of PWM- and phytohaemagglutinin (PHA)-stimulated MM PBL in the absence of CD8⁺/CD57⁺ lymphocytes was only partial, a dysregulated activation-induced apoptosis was anticipated. In fact, patients' PBL displayed an increased susceptibility to apoptosis and this was significantly enhanced after PWM and, even more, after PHA stimulation. Analysis of CD57 antigen expression on apoptotic or viable cells demonstrated a substantial defect of apoptosis in the CD8⁺/CD57⁺ population. Our results indicate that both the immunosuppressive effect of CD8⁺/CD57⁺ cells and the enhanced susceptibility to apoptosis of PBL could be involved in the pathogenesis of the immunodeficiency observed in this disease.     

Kupffer细胞对日本血吸虫病肉芽肿期CD4~+CD25~+T细胞的影响

目的探讨Kupffer细胞对日本血吸虫病肉芽肿期CD4+CD25+T细胞的影响。方法6～8周龄雌性C57BL/6J小鼠30只分为对照组、感染组与感染/氯化钆组3组,每组10只。感染组和感染/氯化钆组小鼠通过腹部感染尾蚴(10条/只),感染/氯化钆组于感染后第4周经尾静脉注射氯化钆,剂量为每次15mg/kg,每周2次;对照组通过尾静脉注射PBS。感染8周后流式细胞仪检测小鼠CD4+CD25+T细胞数量;免疫组织化学染色检测Foxp3的分布;ELISA检测血清细胞因子IL-4、IL-5、IL-10、TGF-β1与IFN-γ的水平,并进行肝功能检测。结果感染组小鼠CD4+CD25+T细胞数量为13.8%,感染/氯化钆组为9.3%;感染组IL-10为41.4pg/ml,感染/氯化钆组为22.6pg/ml;氯化钆可下调Foxp3的分布、血清丙氨酸氨基转移酶的水平,并减轻血吸虫肉芽肿周围的炎症反应。结论Kupffer细胞通过调控CD4+CD25+T细胞数量而参与日本血吸虫肉芽肿的形成。