云芝丹参的体外促增殖试验及其临床应用研究

目的 通过云芝丹参的体外促增殖试验及对乳腺癌患者的临床应用研究,观察其对机体免疫调节活性的影响.方法 采用MTT比色法、流式细胞分析法和ELISA法,分别检测云芝丹参对PHA刺激后的健康成人外周血单个核细胞增殖作用及服用云芝丹参胶囊后的乳腺癌患者外周血淋巴细胞亚群和血浆sIL-2R的浓度.结果 体外实验,中低浓度的云芝丹参药液(6.25～200 μg/mL)对健康成人PBMC有促增殖作用,高浓度(400 μg/mL)时则产生抑制作用;而临床试验中,乳腺癌患者血浆sIL-2R浓度、CD8 细胞百分率均显著降低,而B淋巴细胞数量及百分率、CD4 /CD8 比值和Th细胞的百分率都明显升高.结论 云芝丹参胶囊对正常人及乳腺癌患者都具有免疫增强作用.     

广州市健康儿童和成人淋巴细胞亚群数量的对比分析

目的比较儿童和成人淋巴细胞亚群百分率和绝对数量的异同,更好地为本地区临床诊断和治疗提供参考。方法采用双色流式细胞术分析健康儿童和成人外周血T淋巴细胞亚群(CD3+细胞、CD3+CD4+细胞、CD3+CD8+细胞)、B淋巴细胞(CD19+)、CD3-CD56+NK细胞(自然杀伤细胞)的数量。结果儿童组总淋巴细胞(百分率和绝对数)、CD19+淋巴细胞(百分率和绝对数)、CD3+淋巴细胞百分率、CD3+CD4+淋巴细胞百分率、CD3+CD8+淋巴细胞绝对数、CD3-CD56+细胞绝对数、CD4+/CD8+细胞比值与成人组比较差异均有统计学意义;CD3+CD8+淋巴细胞百分率、CD3-CD56+细胞百分率、CD3+淋巴细胞绝对数和CD3+CD4+淋巴细胞绝对数与成人组比较差异无统计学意义。儿童组CD3+CD8+淋巴细胞、CD19+淋巴细胞、CD3-CD56+细胞的百分率和绝对数均高于成人组,CD3+淋巴细胞(百分率和绝对值)、CD3+CD4+淋巴细胞(百分率和绝对值)和CD4+/CD8+细胞比值低于成人组。相同与不同性别组内均有多个指标存在显著差异。结论淋巴细胞亚群的分布受年龄、性别因素的影响,淋巴细胞亚群绝对数与百分率随年龄的变化不总是保持一致的。用于血液性和免疫性疾病诊断时,采用淋巴细胞亚群绝对数作为参考指标优于百分比率。     

应用基因芯片技术观察云芝丹参对鼻咽癌患者的免疫调节作用

目的为进一步研究云芝丹参的免疫调节功效,利用基因芯片技术筛选鼻咽癌患者服用云芝丹参后免疫功能指标的变化。方法收集鼻咽癌患者27例,设立中药组和安慰剂组,采用基因芯片技术检测鼻咽癌患者服用中药云芝丹参后免疫功能指标的变化,并与安慰剂组比较分析。结果用基因芯片技术检测中药组鼻咽癌患者服用云芝丹参胶囊后第7天,TNFR2基因表达水平较安慰剂组明显下调（P〈0.05）。结论基因芯片技术是筛选肿瘤患者免疫功能指标变化的一种快捷、方便、灵敏的方法。     

丙型肝炎患者外周血淋巴细胞亚群变化特点

目的观察丙型肝炎患者外周血淋巴细胞亚群变化特点。方法对219例丙型肝炎患者和66例健康对照者分别采用流式细胞术(FCM)检测外周血CD45+淋巴细胞,T淋巴细胞(CD45+CD3+、CD45+CD3+CD4+、CD45+CD3+CD8+),B淋巴细胞(CD45+CD3-CD19+),NK细胞(CD45+CD3-CD16+56+)百分比和细胞绝对计数。结果在丙型肝炎病毒(HCV)慢性感染到肝硬化失代偿过程中,淋巴细胞亚群绝对计数出现逐渐下降趋势。慢性丙型肝炎组较健康对照组CD4+T细胞、CD8+T细胞、NK细胞绝对计数明显降低(P0.05)。丙型肝炎肝硬化在早期组和失代偿期组淋巴细胞各亚群计数均较慢性丙型肝炎组明显降低(P0.01),而失代偿期组明显低于早期组(P0.01)。B淋巴细胞百分比以及CD4/CD8比值在慢性感染到肝硬化失代偿过程中出现升高趋势,并在丙型肝炎肝硬化早期和失代偿期时变化明显(P0.01,P0.05),NK淋巴细胞百分比出现明显降低趋势(P0.01)。结论 HCV感染慢性化至肝硬化早期和失代偿期的过程中,外周血CD8+T细胞、CD4+T细胞、NK细胞减少;B细胞百分比、CD4/CD8比值升高。     

手足口病危重型患儿淋巴细胞亚群及免疫球蛋白检测

目的:观察手足口病危重型患儿外周血淋巴细胞亚群及免疫球蛋白的变化。方法:以临床确诊入住ICU的60例手足口病危重型患儿为研究对象,并与30例健康儿童进行对比分析。应用流式细胞术检测抗凝外周全血的淋巴细胞亚群:T淋巴细胞(CD3+CD19-)、辅助T细胞Th(CD3+CD4+)、抑制T细胞Ts(CD3+CD8+)、B细胞(CD3-CD19+)和NK细胞(CD3-CD56+)的相对计数,计算Th/Ts比值。同时进行免疫球蛋白IgG、IgA、IgM测定。结果:手足口病危重型患儿外周血T淋巴细胞、Th细胞、Ts细胞的百分率均明显低于对照组(P<0.05);B细胞的百分率及免疫球蛋白IgG、IgA则显著高于对照组(P<0.05);两组间NK细胞百分率、免疫球蛋白IgM及Th/Ts比值均无明显差异(P>0.05)。结论:手足口病危重型患儿存在细胞免疫和体液免疫功能紊乱。     

慢性疲劳综合征患者外周血淋巴细胞亚群及CD25^＋调节性T细胞表达的研究

研究慢性疲劳综合征（CFS）患者外周血淋巴细胞亚群及CD25＋调节性T细胞的表达情况。使用流式细胞仪检测84例CFS患者（CFS组）、50例健康体检者（健康对照组）外周血淋巴细胞亚群（T细胞、CD4＋T细胞、CD8＋T细胞、B细胞、NK细胞）及CD25＋调节性T细胞的表达情况。结果显示,CFS组与健康对照组的T细胞、CD8＋T细胞百分率以及CD4＋/CD8＋比值无显著差别（P〉0.05）;而CFS组NK细胞、CD4＋T细胞及CD25＋调节性T细胞百分率显著增高,B细胞百分率显著降低（P〈0.05）。结论：慢性疲劳综合征患者外周血淋巴细胞各亚群比例异常,提示其免疫功能失衡,而CD25＋T调节性细胞可能在该病进程中有重要意义。     

SARS患者急性期外周血CD3+、CD4+及CD8+细胞数量的变化

目的 探讨SARS患者外周血T淋巴细胞亚群的变化及其临床意义。方法 用全自动血细胞分析仪检测44例SARS患者外周血白细胞计数及分类，用流式细胞仪检测SARS患者外周血T淋巴细胞亚群；并与正常对照组比较。结果 与对照组比较，SARS组患者白细胞总数显著下降，淋巴细胞百分数和绝对数显著下降，粒细胞绝对数显著下降，粒细胞百分数显著增加；CD3^ 、CD4^ 和CD8^ 细胞绝对数显著下降，CD3^ 、CD4^ 及CD8^ 细胞百分数和CD4^ /CD8^ 比值与对照组比较无显著性差异。结论 SARS冠状病毒感染损伤患者细胞免疫功能。     

特应性皮炎患者外周血microRNA-155 和CD4+ T 细胞检测的临床意义

目的:研究特应性皮炎患者外周血mircoRNA-155表达量和CD4+T细胞百分率的变化特征,阐明mircoRNA-155定量检测和CD4+T细胞百分率检测的临床意义。方法:利用荧光定量PCR技术检测外周血中mircoRNA-155表达量,利用流式细胞术检测外周血T淋巴细胞亚群CD3+T细胞、CD4+T细胞和CD8+T细胞百分率。选择40例特应性皮炎患者、30例皮肤湿疹患者和30例健康对照组分别检测mircoRNA-155表达量和CD4+T细胞百分率,统计分析各组间的差异性。结果:特应性皮炎组mircoRNA-155相对表达量高于湿疹组和正常对照组(P0.05)。特应性皮炎组CD4+T细胞百分率高于正常对照组和湿疹组(P0.01及P0.05)。结论:特应性皮炎患者外周血mircoRNA-155表达量明显上调,CD4+T细胞百分率升高。临床检测mircoRNA-155和CD4+T细胞具有重要临床意义。     

流式细胞术检测过敏性紫癜患儿外周血调节性T细胞的研究

目的了解过敏性紫癜（HSP）患儿外周血调节性T细胞数量的改变及其在过敏性紫癜患儿免疫功能紊乱中的调控作用。方法应用四色流式细胞术,对35例过敏性紫癜患儿和35例正常儿童的CD4^＋CD25^hi调节性T细胞、CD3^＋T淋巴细胞、CD3^＋CD4^＋辅助T细胞、CD3^＋CD8^＋抑制T细胞、CD19^＋B淋巴细胞、CD3^-CD16^＋ 56^＋NK细胞进行测定。结果HSP患儿外周血CD4^＋CD25^hi调节性T细胞、CD3^＋CD4^＋辅助T细胞、CD3-CD16^＋56＋NK细胞的百分率下降均明显低于对照组;CD19^＋B淋细胞的百分率则显著增高;而两组间CD3^＋T淋巴细胞、CD3^＋CD8^＋抑制T细胞的变化差异无统计学意义。结论HSP患儿体内存在细胞及体液免疫功能紊乱,CD4^＋CD25^＋调节性T细胞具有维持自身免疫耐受和调节免疫应答的功能,其数量下降可能是导致过敏性紫癜发病的重要原因之一。     

慢性髓系白血病患者外周血T淋巴细胞亚群和NK细胞检测的临床意义

目的 研究不同分期慢性髓系白血病患者外周血T淋巴细胞亚群、NK细胞的变化特点,以及应用伊马替尼治疗后获得完全细胞遗传学反应(complete cytogenetic reponse,CCyR)患者淋巴细胞亚群表达情况.方法 选取我院诊治40例慢性髓系白血病患者,其中急变期9例,慢性期31例.采用流式细胞术检测外周血T淋巴细胞亚群、NK细胞水平,并与正常对照组进行比较.结果 初治慢性期、急变期CML患者外周血CD3+、CD4+、CD8+T细胞百分率及CD4+/CD8+比值均低于正常对照组,且急变期CD3+、CD4+T细胞百分率及CD4 +/CD8+比值下降尤为突出(P＜0.01);初治慢性期患者NK细胞百分率与正常对照组相比无差异,而急变期患者低于正常对照组(P＜0.05).与正常组对比,伊马替尼治疗首次获得完全细胞遗传学反应患者仅CD4+T细胞百分率降低,差异具有统计学意义(P＜0.05);但获得完全细胞遗传学反应后应用伊马替尼治疗大于12月患者,CD3+、CD4+T细胞百分率及CD4 +/CD8+比值较正常对照组均有所下降(P＜0.05).与治疗前相比,治疗首次获得完全细胞遗传学反应患者CD3+、CD4+T细胞百分率升高(P＜0.05),而缓解后应用伊马替尼治疗大于12月患者T淋巴细胞亚群无改变(P＞0.05);各组的NK细胞百分比无差异(P＞0.05).初诊CML患者、急变期CD4+/CD8+的比值与BCR-ABLl/ABL1的比值呈负相关.结论 CML患者存在细胞免疫调节功能异常,且机体免疫功能与疾病分期密切相关.伊马替尼治疗初次获得完全细胞遗传学反应患者细胞免疫功能得到改善,但长期应用抑制患者细胞免疫功能.     

Changes of Lymphocyte Subsets in Normal Pregnant and Postpartum Women: Postpartum Increase of NK/K (Leu 7) Cells

ABSTRACT: Changes in lymphocyte subsets in whole blood of normal pregnant and postpartum women were examined by flow cytometry with an automated leukocyte differential system. From the first trimester and throughout pregnancy, the absolute counts of T(CD3) and B(CD20) and T-cell subsets (CD4, CD8) decreased with a decrease in the absolute lymphocyte count, although the proportions of these cells remained unchanged except for a decrease in the percentage of T helper-inducer (CD4) cells in the first trimester. On the contrary, the percentage of NK/K (Leu 7) cells, but not of NK/K (CD16) cells, increased in the first trimester and then both gradually decreased in the second and third trimesters. In the postpartum period, the percentages and absolute counts of T(CD3) and NK/K (Leu 7) cells, but not of other cells, increased transiently. These changes of lymphocyte subsets may indicate suppression of immunological activity during pregnancy and its “increase” in the postpartum period.     

腰椎间盘退变性疾病与外周血淋巴细胞亚群的关系

文题释义：淋巴细胞亚群：淋巴细胞是白细胞的一种,是机体免疫应答功能的重要细胞成分,是淋巴系统几乎全部免疫功能的主要执行者,占外周血白细胞总数的20%-40%,按其发生迁移、表面分子和功能的不同,主要分成T淋巴细胞、B淋巴细胞和自然杀伤细胞三大类。 自然杀伤细胞(natural killer cell,NK)：是机体重要的免疫细胞,不仅与抗肿瘤、抗病毒感染和免疫调节有关,而且在某些情况下参与超敏反应和自身免疫性疾病的发生。 背景：既往研究认为椎间盘退变的主要原因为遗传、衰老、营养不良和负荷史,免疫系统在椎间盘退变过程中的作用尚不清楚。 目的：观察腰椎间盘退变患者外周血淋巴细胞亚群的变化,并研究腰椎间盘退变程度与外周血各淋巴细胞亚群的关系。 方法：收集76例腰椎间盘退变性疾病患者和56例健康志愿者(对照组)的血样,用流式细胞仪检测外周血各淋巴细胞亚群,包括CD3⁺T细胞、CD4⁺T细胞、CD8⁺T细胞、CD19⁺B细胞、CD3^-CD16⁺CD56⁺自然杀伤细胞等淋巴细胞亚群的百分率,计算CD4⁺/CD8⁺比值。采用Pfirrmann分级标准评估2组腰椎间盘退变程度和分级,进一步评估外周血各淋巴细胞亚群与腰椎间盘退变程度的相关性。研究经郑州大学第一附属医院伦理审查委员会批准(伦理批号：2019-KY-285),所有受试者都签署了知情同意书。 结果与结论：①腰椎间盘退变性疾病组的腰椎间盘退变程度明显高于对照组(P < 0.05);②腰椎间盘退变性疾病组CD4⁺T细胞百分率、自然杀伤细胞百分率和CD4⁺/CD8⁺比值明显高于对照组(P < 0.05);腰椎间盘退变性疾病组CD8⁺T细胞百分率较对照组显著降低(P < 0.05);③对照组腰椎间盘退变程度与外周血各淋巴细胞亚群无相关性;腰椎间盘退变性疾病组腰椎间盘退变程度与CD4⁺ T细胞百分率、CD4⁺/CD8⁺比值、自然杀伤细胞百分率成线性正相关(r =0.412,P=0.000;r=0.715,P=0.000;r=0.494,P=0.000),与CD8⁺ T细胞百分率成线性负相关(r=-0.737,P=0.000);④结果表明,腰椎间盘发生退行性改变可能与外周血各淋巴细胞亚群改变有关,且CD4⁺T细胞增多、自然杀伤细胞增多以及CD4⁺/CD8⁺比值增高可能加速腰椎间盘退变。提示,免疫系统改变预示腰椎间盘退变发生的可能,其有望成为腰椎间盘退变性疾病的防治靶点。 ORCID: 0000-0002-8087-2356(冯阳) 中国组织工程研究杂志出版内容重点：组织构建;骨细胞;软骨细胞;细胞培养;成纤维细胞;血管内皮细胞;骨质疏松;组织工程     

Abnormalities in the T and NK lymphocyte phenotype in patients with Nijmegen breakage syndrome

Nijmegen breakage syndrome (NBS) is a rare autosomal recessive disorder characterized by spontaneous chromosomal instability with predisposition to immunodeficiency and cancer. In order to assess the cellular basis of the compromised immune response of NBS patients, the distribution of functionally distinct lymphocyte subsets in peripheral blood was evaluated by means of double-colour flow cytometry. The study involved the 36 lymphopenic patients with a total lymphocyte count < or =1500 microl (group A) and seven patients (group B) having the absolute lymphocyte count comparable with the age-matched controls (> or =3000 microl). Regardless of the total lymphocyte count the NBS patients showed: (1) profound deficiency of CD4+ and CD3/CD8+ T cell subsets and up to fourfold increase in natural killer (NK) cells, almost lack of naive CD4+ T cells expressing CD45RA isoform, unchanged percentage of naive CD8+ cell subset (CD8/CD45RA+) but bearing the CD8 receptor of low density (CD8low); (2) normal expression of CD45RA isoform in the CD56+ lymphocyte subset, profound decrease in alpha beta but up to threefold increase in gamma delta-T cell-receptor (TCR)-positive T cells; (3) shift towards the memory phenotype in both CD4+ and CD8+ lymphocyte subpopulations expressing CD45RO isoform (over-expression of CD45RO in terms of both the fluorescence intensity for CD45RO isoform and the number of positive cells); and (4) an increase in fluorescence intensity for the CD45RA isoform in NK cells population. These results indicate either a failure in T cell regeneration in the thymic pathway (deficiency of naive CD4+ cells) and/or more dominant contribution of non-thymic pathways in lymphocyte renewal reflected by an increase in the population of CD4+ and CD8+ memory cells, gamma delta-TCR positive T as well as NK cell subsets.     

T lymphocyte subsets and NK cell cytotoxicity in chronic hemodialysis patients. The effect of recombinant human erythropoietin (rHu-EPO) treatment.

We investigated subpopulations of T lymphocytes, NK cell number and cytotoxic activity in 14 chronic uremic patients on regular hemodialysis treatment. We observed a significantly decreased absolute lymphocyte number and percentage of CD3 cells. Relative numbers of CD16 cells were significantly elevated, but NK cell cytotoxic activity was within a normal range. Nine patients with chronic renal anemia on maintenance hemodialysis were enrolled in rHu-EPO treatment trial. The treatment was continued till the hematocrit level reached 30%. Each of the patients had corrected anemia and well-being. After 12 weeks of the treatment we observed in these patients decreases in CD3, CD4, CD8 and CD16 cell numbers and elevation of CD4/CD8 ratio. Cytotoxic activity of NK cells did not change significantly. Presented results indicate that chronic hemodialysis patients have significantly diminished lymphocyte number. rHu EPO treatment affects the T lymphocyte subsets inducing a deep decrease of CD8 and CD16 cell percentage leading to normalisation of the CD4/CD8 ratio.     

The alteration of lymphocyte subsets in idiopathic granulomatous mastitis

Background and aimThis study analyzed peripheral blood lymphocyte subsets to determine their role in the etiopathogenesis of IGM.Materials and methodsThis study includes 51 pathologically proven IGM patients (active disease: 26 and in remission: 25) and 28 healthy volunteers. The analyses of lymphocyte subsets were performed by flow cytometric immunophenotyping. ResultsThe percentage of T helper lymphocyte of all IGM patients were lower than control groups (p = 0.001). Absolute cytotoxic T lymphocyte count (p = 0.03), both percentage (p = 0.035) and absolute count (p = 0.002) of the natural killer cells, and both percentage (p = 0.038) and absolute count (p = 0.008) of natural killer T cells, were higher than the control group. The T helper lymphocyte percentage of the patients with active disease was lower than the control group (p = 0.0003). The absolute cytotoxic T lymphocyte (p = 0.029) and natural killer T cells (p = 0.012) of the patients with active disease were higher than the control group. ConclusionIdiopathic granulomatous mastitis is defined as a localized form of granulomatous disorders. However, the observed changes in T cells, NK, and NKT cells suggest that there is systemic immune dysregulation in patients with IGM.     

新辅助化疗对局部进展期乳腺癌患者T淋巴细胞亚群及NK细胞免疫功能的影响

目的:探讨局部进展期乳腺癌患者新辅助化疗前、后T淋巴细胞亚群及NK细胞免疫功能的变化。方法:采用流式细胞术检测54例局部进展期乳腺癌患者新辅助化疗前后的静脉血T淋巴细胞亚群及NK细胞免疫功能。美国癌症联合会(American Joint Commitree on Cancer,AJCC)肿瘤分期为Ⅱb期(仅T3N0M0)和Ⅲ期(不包括N3),静脉血于第1周期新辅助化疗治疗前及第3周期化疗后21日抽取,淋巴细胞亚群检测包括:T(CD3+,CD4+,CD8+),NK(CD56+,CD16+),经过3周期新辅助化疗CEF方案(表柔比星、环磷酰胺和5-氟尿嘧啶),根据新辅助化疗临床效果评价分为2组,化疗有效组38例(CR和PR),化疗无效组16例(SD和PD),并与正常体检健康者(40例)作比较。结果:乳腺癌患者治疗前CD4+、CD4+/CD8+明显低于对照组(P<0.01),NK细胞明显低于对照组(P<0.05),新辅助化疗后,有效组总CD3+、CD4+、CD4+/CD8+、NK细胞较治疗前均显著升高(P<0.05),CD8+降低(P<0.05);无效组CD3+、CD4+/CD8+及NK细胞较治疗前显著降低(P<0.05),而CD8+升高(P<0.05)。结论:局部进展期乳腺癌患者免疫功能低下,有效的辅助化疗能提高患者的免疫功能,定期监测免疫功能对指导临床治疗有意义。     

Relative and absolute numbers of T lymphocyte subpopulations and NK cells in male population in relation to age

Using BMA monoclonal antibodies and fluorescent microscope, percentages and absolute numbers of lymphocytes, T cell subsets and NK cells were enumerated in peripheral blood from 126 healthy men. Although absolute numbers of total lymphocytes did not differ according to age, the numbers and percentage of natural killer (NK) cells showed positive interrelationship with age. The percentage but not absolute numbers of cells reacting with BMA 030 (CD3) and BMA 040 (CD4) antibodies were significantly increased only in groups aged of 20-29 yrs and 30-39 yrs. The percentage and number helper/inducer T cells (CD4) were comparable in the four groups of subjects. These results indicate that peripheral lymphocyte populations and T cell subsets and NK cells remarkably vary in healthy men over a wide range of ages.     

Moroccan lymphocyte subsets reference ranges: age,gender, ethnicity,and socio-economic factors dependent differences

ABSTRACT

Lymphocyte subsets reference ranges are helpful for a precise diagnosis and therapy of various diseases. We attempted in the current study to establish Moroccan lymphocyte reference range and reveal age, gender, ethnicity, income, and instructional levels dependent differences. Lymphocyte subsets percentage and absolute count were determined by 4-color flow cytometry in a population study of 145 adults Moroccan healthy volunteers. Analysis showed significant age-dependent changes. Age was associated with a decrease of naïve CD4+ and CD8+ T cells and an increase of memory CD4+ or CD8+ T cells. Activated CD4+ CD38+ and CD8+ CD38+ T cells, Treg as well as NK cell showed age-dependent alterations. In contrast, B cells remained unchanged. A higher percentage of CD3+ and CD4+ T cells was observed in females while CD8+, B and NK cells count were higher in men. Ethnicity, instructional levels, and personal income seem to not influence lymphocyte subsets reference values. This study provides reference ranges for lymphocyte subsets of healthy Moroccan adults. These results can be used for other North African (Maghrebian) countries considering their geographic, ethnic, economic, and cultural similarities.