尖锐湿疣亚临床感染转归与局部T淋巴细胞亚群检测

目的研究尖锐湿疣亚临床感染(SPI)转归与局部T淋巴细胞亚群变化的关系,进一步探讨SPI转归机制。方法对确诊的SPI患者进行:①所有患者随访8个月,每月观察1次,以临床表现和醋酸白试验判定SPI三种转归结局:发展为典型CA,SPI持续存在、SPI消失,依次分为A组、B组、C组;②免疫组织化学方法检测皮损组织和正常对照组织的T细胞亚群(CD_4~+,CD_8~+,CD_4~+/CD_8~+)的百分比,分析局部细胞免疫功能与三种转归结局的相关性。结果与正常组比较,SPI组CD_4~+细胞、CD_8~+细胞、CD_4~+/CD_8~+比值差异均有统计学意义(P0.05)。SPI转归组中,A组与B组CD_4~+/CD_8~+比值差异无统计学意义(P0.05),A组、B组分别与C组比较CD_4~+/CD_8~+比值差异均有统计学意义(P0.05)。结论 SPI患者存在局部细胞免疫功能降低,局部细胞免疫功能强弱是决定SPI临床症状及转归的重要因素之一。     

尖锐湿疣亚临床感染转归与局部T淋巴细胞亚群检测北大核心CSCD

目的研究尖锐湿疣亚临床感染(SPI)转归与局部T淋巴细胞亚群变化的关系,进一步探讨SPI转归机制。方法对确诊的SPI患者进行:①所有患者随访8个月,每月观察1次,以临床表现和醋酸白试验判定SPI三种转归结局:发展为典型CA,SPI持续存在、SPI消失,依次分为A组、B组、C组;②免疫组织化学方法检测皮损组织和正常对照组织的T细胞亚群(CD_4^+,CD_8^+,CD_4^+/CD_8^+)的百分比,分析局部细胞免疫功能与三种转归结局的相关性。结果与正常组比较,SPI组CD_4^+细胞、CD_8^+细胞、CD_4^+/CD_8^+比值差异均有统计学意义(P<0.05)。SPI转归组中,A组与B组CD_4^+/CD_8^+比值差异无统计学意义(P>0.05),A组、B组分别与C组比较CD_4^+/CD_8^+比值差异均有统计学意义(P<0.05)。结论 SPI患者存在局部细胞免疫功能降低,局部细胞免疫功能强弱是决定SPI临床症状及转归的重要因素之一。     

局部物理和化学疗法对尖锐湿疣患者细胞免疫功能的影响

观察局部物理和化学疗法对尖锐湿疣病人机体免疫功能的影响。将45例尖锐湿疣病人分成两组 ,分别用0.5 %鬼臼毒素和高频电烧灼治疗 ,在治疗前后检测病人外周血NK细胞、T淋巴细胞亚群分布和白介素 2水平。结果 :尖锐湿疣病人的细胞免疫功能有异常。治疗前病人血中的CD8+细胞百分比显著增加 ,CD4+细胞百分比减少 ,CD4+/CD8+比率下降 ,血清白介素 2水平低于正常值 ,治疗后病人的细胞免疫功能有一定程度的恢复 ,但两组间的差异无显著性意义(P>0.05)。结果示局部物理或化学方法去除尖锐湿疣疣体对病人机体免疫功能的影响基本一致。     

尖锐湿疣患者外周血及皮损T淋巴细胞亚群的检测

目的:了解尖锐湿疣(CA)患者系统和局部皮损细胞免疫功能的变化,以探讨细胞免疫功能对CA复发的影响。方法:通过流式细胞仪对21例初发CA患者、18例复发CA患者及23名正常人外周血进行T淋巴细胞亚群的检测,同时采用免疫组化染色方法对皮损进行CD4+/CD8+淋巴细胞染色,高倍显微镜下观察阳性细胞的数目。结果:初发CA和复发CA两组CD4+与CD8+细胞比值(1.04±0.50和1.01±0.59)均明显低于正常对照组(1.51±0.66,P<0.05),而两组间差异无显著性(P>0.05)。与正常对照组相比,两组CA局部皮损CD4+/CD8+比值(0.87±0.75和1.51±0.96)均明显降低(P<0.05),且复发CA组CD4+/CD8+比值也明显低于初发CA组,差异有显著性(P<0.05)。男女性患者不同部位皮损CD4+/CD8+比值均低于正常对照组,差异有显著性(P<0.05)。结论:CA患者存在全身和局部的细胞免疫功能低下,特别是局部细胞免疫功能低下在CA的复发中起着一定的作用。     

病毒性皮肤病

20031836 单纯疱疹病毒gD2 DNA疫苗诱导动物的细胞免疫应答/杨慧兰(广州军区总医院)…//中华皮肤科杂志.-2003,36(1).-44 采用疱疹病毒保护性抗原gD2基因构建PCDNA-gD2 DNA疫苗免疫BALB/C/小鼠,观察小鼠的CD_4~+、CD_8~+T细胞亚群变化,以及对细胞毒T细胞(CTL)活性的影响。结果:免疫组小鼠CD_4~+T细胞数显著高于对照组,两组间CD_8~+T细胞、CD_4~+/CD_8~+比值差异均无显著性;免疫组小鼠     

湿疹患者外周血淋巴细胞亚群分析及与C反应蛋白、血沉相关性研究

目的研究湿疹患者外周血淋巴细胞亚群的变化,并探讨与C反应蛋白(CRP)和血沉(ESR)之间的相关性。方法使用流式细胞仪测定87例湿疹住院患者淋巴细胞亚群,并与正常人群进行比较;使用免疫比浊法测定湿疹患者C反应蛋白,使用魏氏法测定血沉,分析淋巴细胞亚群与CRP、ESR的相关性。结果与正常对照组相比,患者组CD_4~+T细胞、B细胞构成比显著高于对照组,两组相比差异有统计学意义(P0.05);患者组NK细胞构成比显著低于对照组,两组相比差异有统计学意义(P0.05);患者组和对照组之间在CD_3~+T细胞、CD_8~+T细胞构成比及CD_4~+/CD~+比值相比较差异无统计学意义(P0.05)。相关性分析显示:患者组CD_4~+T细胞构成比与CRP呈正相关(P0.05),B细胞构成比与CRP呈负相关(P0.05),CD_3~+T细胞、CD_8~+T细胞、NK细胞构成比及CD_4~+/CD_8~+比值与CRP均无显著相关性(P0.05);患者组CD_3~+T细胞、CD_4~+T细胞、CD_8~+T细胞、B细胞、NK细胞构成比及CD_4~+/CD_8~+比值与ESR均无显著相关性(P0.05)。结论湿疹患者存在免疫失调,主要表现为CD_4~+T细胞、B细胞构成比增高,NK细胞构成比降低,并且CD_4~+T细胞、B细胞构成比与CRP水平存在一定相关性。     

性病

992434 尖锐湿疣患者外周血T淋巴细胞亚群及胸腺肽治疗的研究/李其林（广州市红十字会医院皮肤科）…//中国皮肤性病学杂志.-1999,13（2）.-98 用单克隆抗体及碱性磷酸酶-抗碱性磷酸酶（APAAP）技术检测了38例CA患者外周血T细胞亚群,并用胸腺肽治疗。结果患者CD_8升高,CD_4、CD_4/CD_8下降。治疗后3个月内未复发的25例患者,T细胞恢复正常,而8例复发者,治疗前后T细胞亚群无明显变化。提示CA患者存在细胞免疫功能缺陷,胸腺肽治疗可获得较好效果。表2参8 （马慧群）992435 左旋咪唑涂布剂预防尖锐湿疣术后复发疗效观察/高丽琴（西安市一院皮肤科）…//中国皮肤性病学杂志.-1999,13（2）.-100     

四种疣患者外周血淋巴细胞免疫表型的比较研究

作者对80例4种类型疣患者外周血淋巴细胞免疲表型进行了分析。结果OKT_(11)~+、OKT_4~+细胞百分比及OKT_4~+/OKT_8~+此率在寻常疣,扁平疣及尖锐湿疣较正常对照显著降低,仅尖锐湿疣OKT_8~+细胞百分比显著升高。寻常疣及尖锐湿疣OKT_(11)~+、OKT_4~+细胞绝对值显著降低,OKT_8~+细胞绝对值在跖疣和扁平疣显著增加。不同类型疣患者对HPV感染的细胞免疫应答的这种差异可能系HPV抗原异质性所致。     

昆虫、寄生虫性皮肤病

970753 疥疮结节患者郎格罕细胞和淋巴细胞亚群的观察/吴安…∥中华皮肤科杂志.-1996,29(4).-261应用单克隆抗体对46例疥疮结节患者外周血及原位皮损进行了免疫组化研究.结果:疥疮结节患者外周血单一核细胞各亚群的变化及和正常对照组绝对值的比较为疥疮结节患者外周血中CD_4~ /CD_8~ 、CD_(116)~ 细胞明显升高(P<0.05),其余无显著性差异.结节表皮中几乎单一核细胞浸润,真皮有大量的致密T淋巴细胞浸润,CD_4~ 、CD_8~ 、CD_3~ 、CD_(116)~ 细胞,HLA-DR~ 细胞,多呈围管性浸润,CD_8~ 细胞分布于真皮上部,与对照组比较明显升高(P<0.05).CD_4~ /CD_8~ 降低,与对照组比较也有显著性差异.参8(贾泰元)     

阿维A联合重组人白介素-2对尖锐湿疣患者T淋巴细胞亚群及复发的影响

目的观察阿维A联合重组人白介素-2对尖锐湿疣(CA)患者外周血T淋巴细胞亚群的影响及预防复发的效果。方法入选患者随机分为两组,A组30例用微波彻底清除疣体后应用重组人白介素-2注射液20万U肌注,隔日1次,连用7次;B组34例采用微波彻底清除疣体后联合阿维A及重组人白介素-2治疗。所有患者均随访6个月。治疗前及治疗后8周抽取外周血检测T淋巴细胞亚群,并与25例健康对照组进行比较。结果治疗前CA患者与健康对照组比较,CD4+细胞百分比、CD4+/CD8+比值降低,差异有统计学意义(P<0.05),CD8+细胞百分比升高,差异亦有统计学意义(P<0.05),CD3+细胞百分比无明显变化;治疗后A,B组CD4+细胞百分比及CD4+/CD8+比值明显升高,CD8+细胞百分比降低,与治疗前相比差异均有统计学意义(P均<0.05),CD3+细胞无明显变化;治疗后A组,B组比较,A组CD4+细胞百分比、CD8+细胞百分比、CD4+/CD8+比值变化明显小于B组,差异有统计学意义(P<0.05);治疗后A组CD4+细胞百分比、CD4+/CD8+比值仍低于对照健康组,差异有统计学意义(P<0.05),治疗后B组与健康对照组相比上述指标差异无统计学意义(P>0.05)。A组复发率33.33%,明显高于B组的11.76%(P<0.05)。结论 CA患者存在细胞免疫功能异常,阿维A与重组人白介素-2可调节CA患者外周血T淋巴细胞亚群,从而调节患者细胞免疫功能;两者联合应用治疗CA可获得较好疗效,并能降低其复发率。     

斑秃患者外周血T淋巴细胞亚群及CD4~+CD25~+调节T细胞的检测

目的检测斑秃(AA)患者外周血T淋巴细胞亚群及CD4+CD25+调节性T(Tr)细胞数量变化,分析AA的可能病因。方法利用流式细胞仪和单克隆荧光抗体技术,测定重度和局限性AA各40例患者外周血中T淋巴细胞亚群占T淋巴细胞的比率及CD4+CD25+Tr细胞在CD3+CD4+T淋巴细胞中的比率。结果重度AA患者外周血中CD4+CD25+Tr细胞占CD3+CD4+T细胞的比率为(1.43±0.74)%,显著低于正常对照组(2.25±0.97)%(P<0.01),重度AA患者的CD4+T占T淋巴细胞的比率为(31.42±6.66)%,略高于正常对照组(30.69±7.47)%(P>0.05),差异无显著性,而CD8+T占T淋巴细胞的比率为(25.86±4.35)%,明显高于正常对照组(22.42±6.10)%(P<0.01);局限性AA患者的三项指标分别为(2.14±0.87)%,(32.60±10.27)%和(21.59±5.24)%,与对照组差异无显著性(P>0.05)。结论AA患者外周血中CD4+CD25+Tr明显低于正常对照组,CD8+T比率明显高于正常对照组,可能是导致重度AA发病的主要免疫机制。     

T淋巴细胞亚群失衡与SLE中医辨证分型的关系

目的观察不同中医证型SLE患者外周血CD4~+T,CD8~+T,CD8~+CD28~+T,CD8~+CD28~-T,CD3~+CD4~+IFN-r~+T和CD3~+CD4~+IL-4~+T细胞百分率。方法 SLE患者中医辨证分为气血两燔型、肝热血瘀型、气阴两虚血瘀型和脾肾阳虚型4型,流式细胞技术检测外周静脉血中CD4~+T,CD8~+T,CD8~+CD28~+T,CD8~+CD28~-T,CD3~+CD4~+IFN-r~+T和CD3~+CD4~+IL-4~+T细胞百分率,并与正常组比较。结果不同证型SLE患者外周血CD4~+T表达均下降(P均<0.01),气阴两虚血瘀型CD8~+CD28~+T表达降低、CD8~+CD28~+T/CD8~+CD28~-T比值降低、CD8~+CD28~-T表达升高,脾肾阳虚型CD3~+CD4~+IFN-r~+T表达显著高于其他各组,其CD3~+CD4~+IL-4~+T表达也显著高于正常组及气血两燔型(P均<0.05)。结论 SLE患者存在T淋巴细胞数量及功能失衡,中医辨证分型与微观指标有一定的关系。     

Flow cytometric analysis of cellular infiltrate from American tegumentary leishmaniasis lesions

BACKGROUND: CD4+ and CD8+ T lymphocytes play different roles in the outcome of leishmaniasis. However, T-cell distribution in lesions shows significant variability in in situ immunocytochemical studies. OBJECTIVES: In this report flow cytometry was used to determine the predominant T-cell subsets in leishmaniasis lesions, and their relationship with Leishmania-responsive circulating T cells. PATIENTS AND METHODS: Mononuclear cells from lesions or peripheral blood (PBMC) of 34 cutaneous (CL), four mucosal (ML) and four disseminated leishmaniasis were phenotypically characterized by flow cytometry. Leishmania-responsive T cells were obtained after in vitro stimulation of PBMC with leishmanial antigens. RESULTS/CONCLUSIONS: Variable amounts of gammadelta lymphocytes were present in all lesions, with no association with duration of illness. The highest percentages of interleukin-2R- and interferon-gammaR-positive cells were observed in ML lesions and could render these T cells more susceptible to the effects of these cytokines. The distribution of intralesional T-lymphocyte subsets was quite variable (CD4+ > CD8+ = 18 cases, CD8+ > CD4+ = 12 cases and CD4+ congruent with CD8+ = 4 cases) without any association with clinical parameters, and could explain the controversy regarding proportions of these T-cell subsets in leishmaniasis lesions. Low percentages of Leishmania-reactive CD8+ T cells were observed in blood while an enrichment of CD8+ cells was shown in the inflammatory infiltrate, suggesting that local immunoregulatory factors could favour the recruitment and/or proliferation of local CD8+ lymphocytes. Increased percentages of CD8+ cells observed in older lesions are consistent with the hypothesis that they can mediate healing, although their involvement in tissue damage cannot be ruled out. It is possible that these mechanisms can influence the clinical outcome or even the response to therapy.     

Leu-8/CD7 antigen expression by CD3+ T cells: comparative analysis of skin and blood in mycosis fungoides/Sézary syndrome relative to normal blood values.

Deficiencies of Leu-8 and CD7 antigens are exhibited by CD3+ T cells in the skin lesions of most patients with mycosis fungoides/Sézary syndrome. To determine whether these antigenic abnormalities are limited to involved skin, we studied Leu-8/CD7 expression in 21 skin lesions of mycosis fungoides/Sézary syndrome obtained from 16 patients and compared them with their peripheral blood leukocytes obtained concurrently. There was no correlation between Leu-8/CD7 values in skin lesions versus blood. Blood values were relatively uniform; most patients had 50% or greater of CD3+, Leu-8+ T cells and CD3+, CD7+ T cells. In contrast, skin values were highly heterogeneous; most patients lacked expression of Leu-8 or CD7 by the majority of lesional CD3+ T cells. Furthermore, Leu-8/CD7 antigen deficiency was present in lesional skin in one patient with mycosis fungoides but not in her concurrently sampled pityriasis lichenoides chronica or blood. These findings suggest that Leu-8/CD7 antigen deficiencies in skin lesions of mycosis fungoides/Sézary syndrome do not represent generalized antigenic abnormalities of CD3+ T cells in other body compartments and that within the skin, these deficiencies are disease specific within individual patients with more than one dermatosis. Comparative peripheral blood immunophenotyping of the patients with mycosis fungoides/Sézary syndrome and of the control subjects indicated that the control ranges of CD3+/Leu-8+ and CD3+/CD7+ T cells (33% or greater) extend lower than reported previously (60% or greater) and suggested that leukemic involvement in patients with mycosis fungoides/Sézary syndrome may correlate with percentages of CD3+, Leu8+ and/or CD3+, CD7+ T cells that fall below the revised control range.     

银屑病患者皮损和外周血中CD8α+α+ T细胞的研究

目的 观察银屑病患者皮损和外周血中CD8α+α+ T细胞的分布和比例,探讨其在银屑病发病中的作用。 方法 采用免疫荧光技术观察5例进展期寻常性银屑病患者和5例健康人皮肤中CD8α+α+ T细胞的分布,流式细胞仪分别检测10例进展期寻常性银屑病患者和8例健康人外周血中CD8α+α+ T细胞比例及干扰素γ（IFN-γ）和肿瘤坏死因子α（TNF-α）的表达。采用Graphpad Prism统计软件对实验组和对照组各数据进行t检验。 结果 在5例银屑病患者皮损真皮浅层均可见以CD8α+α+ T细胞为主的浸润,未见明显的CD8α+β+ T细胞浸润;而5例健康人皮肤中均未见CD8α+α+ T细胞和CD8α+β+ T细胞浸润。流式细胞仪检测,8例健康人外周血中CD8α+α+ T细胞比例为9.12% ± 4.80%,10例银屑病患者组为26.47% ± 12.99%,银屑病患者组明显高于对照组,两组比较,t = 3.96,P ＜ 0.001。在银屑病患者外周血CD8α+α+ T细胞中分泌IFN-γ和TNF-α的细胞比例分别为47.36% ± 19.38%和54.14% ± 21.14%,健康对照组分别为13.44% ± 9.21%和34.03% ± 17.22%,两组差异均有统计学意义（t值分别为4.54和2.17,P值分别 ＜ 0.001和 ＜ 0.05）。 结论 银屑病患者皮损和外周血中存在CD8α+α+ T细胞的分布和比例增多,CD8α+α+ T细胞可能是参与银屑病发病的主要CD8+ T细胞亚群。     

TLR9在初发和复发尖锐湿疣皮损及外周血T细胞亚群中的表达

目的检测初发和复发尖锐湿疣(CA)患者皮损及外周血T细胞亚群中TLR9的表达情况,并探讨TLR9在HPV感染和CA复发机制中的作用。方法分别选用30例初发CA和27例复发CA患者皮损,并以28例正常人皮肤石蜡切片作为正常对照组。采用双色免疫荧光抗体染色流式细胞术检测入选者外周血T细胞中TLR9的表达。结果初发CA组和复发CA组皮损颗粒层和棘层TLR9表达(1.38±0.72和2.06±0.84)和外周血CD3+CD4+T细胞内TLR9表达[(11.4±3.2)%和(14.6±2.4)%]显著高于正常对照组[0.97±0.43和(6.2±2.1)%];另外,复发CA患者外周血CD3+CD4+T细胞内TLR9的表达也显著高于初发CA组;以上差异均有统计学意义(P均<0.05)。但是该两组患者的外周血CD3+CD8+T细胞内TLR9的表达与正常对照组差异不显著(P>0.05)。结论 CA皮损及外周血CD3+CD4+T细胞内TLR9表达上调可能是HPV病毒感染的识别受体,并参与机体的抗HPV免疫应答。TLR9可能在CA复发机制中发挥着重要的作用。     

Analysis of perforin expression in peripheral blood and lesions in severe and mild psoriasis

BACKGROUND: Perforin is a membrane-disrupting protein that allows the entry of granzymes into a target cell inducing degradation of target substances in the cytoplasm and nucleus thus leading to programmed cell death or apoptosis. Recent work demonstrated a possible involvement of perforin mediated cytotoxicity in immunopathogenesis of psoriasis. OBJECTIVES: To investigate a difference in systemic (peripheral blood) and local (lesions) expression and distribution of perforin in psoriatic patients with severe and mild disease. METHODS: Flow cytometry was used for simultaneous detection of intracellular (perforin) and cell surface antigens in peripheral blood lymphocytes. The expression of perforin in skin lesions was evaluated by immunohistochemistry. RESULTS: Significant increase of perforin expression in T lymphocytes, especially cytotoxic CD8+ cells was found in severe psoriasis compared to mild disease (p<0.01 and p<0.05, respectively). There was also an increase of CD56+P+ NK cells (p<0.05) in severe compared to mild psoriasis. The psoriatic plaque of both, severe and mild disease were abundant with perforin showing no significant difference on local level. CONCLUSION: Based on our results we suggest the association between perforin expression and disease severity.     

Perforin expression in peripheral blood lymphocytes and skin-infiltrating cells in patients with lichen planus

BACKGROUND: Current evidence suggests that lichen planus is a T-cell-mediated autoimmune disease in which cytotoxic mechanisms have been poorly investigated. OBJECTIVES: We investigated the expression of perforin in subpopulations of peripheral blood lymphocytes (PBL) in exacerbation and remission phases of the disease as well as in skin lesions. METHODS: We performed a simultaneous detection of perforin (intracellular molecule) and cell surface antigens on PBL by flow cytometry, and skin lesions were investigated by immunohistochemistry. RESULTS: The most interesting finding was a significant increase of perforin expression in cytotoxic T lymphocytes (CD3+ perforin+ cells) in the exacerbation phase of disease (P < 0.05), which was mostly located in the CD8+ subpopulation (CD8+ perforin+) (P < 0.01). Using immunohistochemistry we confirmed the infiltration of T lymphocytes in skin lesions, especially of CD4+ and CD8+ phenotypes, compared with uninvolved (P < 0.05) and healthy skin (P < 0.01). The expression of perforin was also significantly higher in lesional skin compared with nonlesional and healthy skin (P < 0.05). CONCLUSIONS: Our results clearly show the upregulation of perforin expression in peripheral blood as well as in lesions of patients with lichen planus and therefore suggest an important role for perforin in this autoimmune disease.     

血热型/血燥型银屑病患者外周血T淋巴细胞亚群变化

目的 探讨血热型/血燥型银屑病患者外周血T淋巴细胞亚群变化规律,并和正常人作比较.方法 选择血热型银屑病患者35例、血燥型银屑病患者30例和正常人36例的外周血单一核细胞,采用流式细胞分析方法检测T淋巴细胞亚群中CD4⁺和CD8⁺的比例.结果 在银屑病患者外周血中,血热CD4M⁺淋巴细胞明显低于血燥型或正常人,CD8⁺淋巴细胞明显高于血燥型或正常人,CD4⁺/CD8⁺比值明显倒置,而血燥型CD4⁺和CD8⁺淋巴细胞与正常人相比没有差异.结论 T淋巴细胞变化可能是血热型/血燥型银屑病辨证求因的主要效应细胞之一.     

斑秃患者外周血CD4+CD25+Foxp3调节性T细胞及T淋巴细胞亚群的测定

目的 研究斑秃患者外周血中CD4+CD25+调节性T细胞数量及CD4+、CD8+ T淋巴细胞亚群数量与斑秃疾病严重程度的关系。方法 对斑秃进行病情分组，以流式细胞仪检测17例重度、15例局限型斑秃患者和25例正常人对照者外周血中有功能活性的CD4+CD25+调节性T细胞（即CD4+CD25+ Foxp 3 T 细胞）在CD4+ T淋巴细胞中的比率，CD4+和CD8+占T淋巴细胞的比率。 结果 重度斑秃患者外周血中有功能活性的CD4+CD25+ Foxp 3 T细胞占CD4+ T细胞比率为0.54% ± 0.31%，显著低于正常人对照组（3.21% ± 0.76%）及局限型斑秃患者（2.71% ± 0.37%，P ＜ 0.001）；与正常人对照组比较，差异无统计学意义（P ＞ 0.05）。重度斑秃患者的CD4+占T淋巴细胞的比率为32.61% ± 3.48%，显著低于正常人对照组（43.0% ± 3.63%，P ＜ 0.001），而CD8+占T淋巴细胞的比率为40.96% ± 8.54%，显著高于正常人对照组（25.23% ± 2.14%，P ＜ 0.001）。局限型斑秃患者的此两项指标分别为41.25% ± 4.27%和26.6% ± 2.28%，与对照组差异无统计学意义（P ＞ 0.05）。重度斑秃患者的CD8+占T淋巴细胞的比率与CD4+CD25+ Foxp 3调节性 T 细胞占CD4+ T细胞的比率有负相关关系（r ＝ －0.94，P ＜ 0.001）。结论 重度斑秃可能与外周血中CD4+CD25+ T细胞数量的减少和功能活性的降低有关。