原发性肝癌血液CD44v mRNA检测的临床意义

目的 探讨检测外周静脉血液中游离肿瘤细胞表达的ＣＤ４４ｖ ｍＲＮＡ原发性肝癌的辅助诊断以及预测、监测术后复发的意义。方法 应用套式ＰＣＲ方法检测原发性肝癌患者餐周静脉血液中ＣＤ４４ｖ ｍＲＮＡ的表达，并结合病理检查及随访结果探讨其意义。结果 １５例原发性肝癌患者外周静脉血液中检出了ＣＤ４４ｖ ｍＲＮＡ１０例（６６．６７％，１０／１５）。随访回报１３例，ＣＤ４４ｖ ｍＲＮＡ阳性９例，阴性４例，前者侵     

肝癌患者红细胞CD35、CD44s和CD58分子的检测及临床意义

红细胞膜上广泛存在免疫分子(如CD35、CD44s、CD58等)参与机体识别抗原,清除循环免疫复合物,增强巨噬细胞的吞噬功能和调控淋巴细胞等非特异性和特异性免疫反应,在抗感染、抗肿瘤和免疫自稳过程中具有重要作用[1].     

系统性红斑狼疮患者外周血淋巴细胞CD80和CD86的表达

系统性红斑狼疮(SLE)是自身免疫介导的、以免疫性炎症为突出表现的弥漫性结缔组织病。血清中出现以抗核抗体为代表的多种自身抗体和多系统受累是其主要临床特征。CD80(B7．1)和CD86(B7-2)是T细胞活化必需的协同刺激分子。我们研究了SLE患者外周血淋巴细胞(PBLC)CD80和CD86的表达，以期探讨CD80和CD86在SLE发病中的作用。     

急慢性肝炎、肝硬化及肝癌患者血脂检测的临床意义

目的 探讨急慢性肝炎、肝硬化及肝癌患者血脂(TC、TG、HDL.C、LDL-C、APO-A1、APO-B)的变化及其临床意义.方法 对我院近3年上述肝病患者的血脂结果进行回顾分析.结果 与对照组比较,急性肝炎、肝硬化、肝癌,血脂下降显著(P＜0.05或P＜0.01).结论 血脂水平在一定程度上能反映肝脏的功能,对于了解临床疗效、预后判断具有一定参考价值.     

不同方法检测肝癌患者外周血中CD4+CD25hi-int Tregs水平的关系及意义

目的:探讨以标记CD127low和Foxp3+两种方法检测肝癌(hepatocellular carcinoma,HCC)患者外周血中CD4+CD25hi-int Tregs水平的相关性,建立两者转换的回归方程.方法:流式细胞术同时用CD127low和Foxp3+两种标志物检测31例HCC患者外周血中CD4+CD25hi-int Tregs,检测32例对照组CD4+ CD25hi-int Foxp3+ Tregs水平.结果:HCC患者与健康对照组外周血中CD4+CD25hi-int Foxp3+ Tregs占CD4+T细胞的比例分别为10.33%±4.47%和7.34%±1.76%,差异有统计学意义(P<0.01).HCC患者外周血中CD4+CD25hi-int CD127low Tregs的比例为10.51%±4.78%.与Foxp3+Tregs比例呈正相关,Pearson相关系数为0.889,相关有统计学意义(P<0.01).两者曲线拟合提示幂模型是最优模型,建立回归方程Y=1.236×(x0.899)(Y为Foxp3+Tregs,x为CD127lowTregs).结论:HCC患者外周血中Tregs水平明显升高,用CD127low和Foxp3+两种方法检测HCC患者外周血Tregs水平呈正相关,两者之间数值转换可利用回归方程.     

外周血细胞表面CD83和CD86分子的表达与老年肺癌患者存活的临床分析

目的 了解在外周血DC细胞表面CD83、CD86分子的表达与老年肺癌肿瘤患者存活的关系.方法 收集确诊为肺癌的老年患者外周血20例,用流式细胞仪检测DC表型CD83、CD86,随访1年,将死亡的老年患者和存活的患者分组对照,用统计学处理.结果 随访该组患者12个月中死亡12例,存活8例.CD83和CD86在老年存活组与死亡组比较有显著差异性(P《0.05).结论 老年肺癌患者的死亡可能与CD83和CD86表型表达下降有关,尤其是CD83的表达下降与肺癌患者的死亡关系较为密切.     

CD44在直肠癌、癌近旁组织的表达及临床意义

应用流式细胞技术对52例直肠癌组织、肿瘤近旁组织和正常组织进行CD“检测分析。结果：CDu在肿瘤组织中阳性率92．3％．在肿瘤组织近旁组织中阳性率为53．85%；CD44在肿瘤近旁组织中的检出率明显低于肿瘤组织(P＜O．01)，CD44在肿瘤近旁组织中的不同区段内的检出阳性结果不同，在距肿瘤0．5cm区间内为59．62％，在0．6-1．5cm区间内为21．16%，在1．6-3．0cm区间为9．62%．各组间比较差异显(P＜0．01)．提示：CD44可作为大肠肿瘤诊断和鉴别诊断的客观指标以及诊断癌前病变的参考指标。且CD44可作为低位直肠癌远端切除范围的参考指标。     

CD15、CD44v6和CD54检测与肝癌复发转移的关系研究

探讨粘附因子CD15、CD44v6和CD54（ICAM-1）在肝细胞癌中的表达及临床意义。利用免疫组织化学染色对51例肝癌手术切除石蜡包埋标本进行CD15、CD44V6、CD54的检测。并结合临床病理指标（Edmondson分级、侵袭转移倾向）进行分析。CD15、CD44v6和CD54在侵袭转移倾向高危组中分别为40%、45%、55%,在低危组中分别为13%、19%、19%;CD15、CD44v6和CD54在HCCⅡ级中分别为10%、20%、20%,在IV级中分别30%、50%、50%。结论：CD15、CD44v6和CD54的异常表达与HCC分期和侵袭转移有关;利用CD15、CD44v6和CD54等预测肝癌的复发转移有可能是一种新的途径。     

结直肠癌中可溶性CD54的表达及临床意义

细胞间粘附分子是一类能介导细胞间粘附的糖蛋白 ,主要位于内皮细胞和血液中的各种细胞表面 ,在肿瘤的生长和转移中有重要作用。1 997～ 2 0 0 0年 ,我们对 2 4例结直肠癌患者进行了细胞间粘附分子(s CD54)的测定。现报告如下。1　资料与方法1 .1　临床资料　选择我院已确诊的结直肠癌患者2 4例。男 1 6例 ,女 8例 ;年龄 3 0～ 72岁。 1 6例手术切除 ,其中 A期 6例 ,B、C期 1 0例 ,8例术后发现广泛转移 ;其余 8例为 D期。另设 2个健康对照组 (青年组和老年组 ,各 3 4例 ) ,每组男女各半。1 .2　标本收集　取空腹静脉血 5 ml,离心分离血清…     

狼疮性肾炎肾组织CD80与CD86的表达及其意义

目的 研究T淋巴细胞活化分子CD80与CD86在狼疮性肾炎患者肾组织中的表达变化及其与临床指标之间的相关性.方法 肾组织标本来源于2004年12月-2008年10月哈尔滨医科大学附属第一医院住院患者,其中女性44例,男性5例,年龄(28±16)岁.用免疫组织化学法检测狼疮性肾炎及微小病变患者肾组织中的CD80与CD86的表达情况,免疫比浊法检测24 h尿蛋白定量,全自动生化分析仪检测血尿素氮、血肌酐及血浆白蛋白等临床指标.结果 CD80在肾小管上皮细胞、肾间质有阳性表达,在肾小球无表达,而CD86在肾小管上皮细胞、肾间质及肾小球均有表达.CD80与CD86在肾小管间质中的表达水平随着狼疮性肾炎患者肾小管间质病变程度的加重而增强(r=0.574,P<0.001;r=0.534,P<0.001),且CD80的表达与CD86的表达成正相关.CD80与CDB6的表达与患者系统性红斑狼疮疾病活动指数积分(r=0.319,P=0.011;r=0.324,P=0.011)、24 h尿蛋白定量(r=0.424,P=0.003;r:0.408,P=0.004)、肌酐清除率(r=-0.535,P=0.000;r=-0.543,P=0.000)及抗dsDNA抗体滴度(r=0.353,P=0.012;r=0.359,P=0.013)具有明显相关性.结论 CD80与CD86在狼疮性肾炎患者肾组织中的表达水平与肾间质病变具有明显相关性,并且与狼疮性肾炎患者肾活检时的肾功能及活动性明显相关.     

Expression of CD86 and increased infiltration of NK cells are associated with Helicobacter pylori-dependent state of early stage high-grade gastric MALT lymphoma

AIM: A high percentage of early-stage high-grade gastric mucosa-associated lymphoid tissue (MALT) lymphomas remain Helicobacter(H pylori)-dependent.. However, unlike their low-grade counterparts, high-grade gastric MALT lymphomas may progress rapidly if unresponsive to H pylori eradication. It is mandatory to identify markers that may predict the H pylori-dependent status of these tumors. Proliferation of MALT lymphoma cells depends on cognate help and cell-to-cell contact of H pylori-specific intratumoral T-cells. To examine whether the expression of co-stimulatory marker CD86 (B7.2) and the infiltration of CD56 (+) natural killer (NK) cells can be useful markers to predict H pylori-dependent status of high-grade gastric MALT lymphoma. METHODS: Lymphoma biopsies from 26 patients who had participated in a prospective study of H pylori-eradication for stage IE high-grade gastric MALT lymphomas were evaluated. Tumors that resolved to Wotherspoon grade II or less after H pylori-eradication were classified as H pylori-dependent; others were classified as H pylori-independent. The infiltration of NK cells and the expression of CD86 in pre-treatment paraffin-embedded lymphoma tissues were determined by immunohistochemistry. RESULTS: There were 16 H pylori-dependent and 10 H pylori-independent cases. CD86 expression was detected in 11 (68.8%) of 16 H pylori-Adependent cases but in none of 10 H pylori-independent cases (P = 0.001). H pylori-dependent high-grade gastric MALT lymphomas contained significantly higher numbers of CD56 (+) NK cells than H pylori-independent cases (2.8±1.4% vs 1.1±0.8%; P=0.003). CD86 positive MALT lymphomas also showed significantly increased infiltration of CD56 (+) NK cells compared to CD86-negative cases (2.9±1.1% vs 1.4±1.3%; P= 0.005). CONCLUSION: These results suggest that the expression of co-stimulatory marker CD86 and the increased infiltration of NK cells are associated with H pylori-dependent state of early-stage high-grade gastric MALT lymphomas.     

Circulating levels and clinical significance of soluble CD86 in myeloma patients

Circulating soluble CD86 (sCD86) levels are elevated in a number of leukaemias and are an independent prognostic factor in acute myeloid leukaemia. We investigated the clinical significance of circulating sCD86 in 299 patients from the UK Medical Research Council myeloma VIth trial, where patients received ABCM [adriamycin, carmustine (BCNU), cyclophosphamide, melphalan] either alone or with prednisolone (ABCM + P). Serum levels of sCD86 were significantly elevated (P = 0.0001) in myeloma patients and using the median normal donor level (0.621 ng/ml) as a cut-off point, 70% of patients had elevated levels (range = 0.015-15.87 ng/ml, median = 1.1 ng/ml). In univariate analysis elevated sCD86 levels were associated with significantly shorter (P < 0.001) survival (median = 22 vs. 51 months) and event-free survival (median = 14 vs. 31 months) in ABCM + P but not ABCM patients. Multivariate analysis demonstrated that sCD86 was a significant, independent prognostic marker of both overall [risk ratio (RR) = 2.04, P = 0.0006] and event-free (RR = 1.95, P = 0.0004) survival in ABCM + P patients. In conclusion, this study demonstrated that sCD86 levels are a significant independent prognostic marker in at least some myeloma treatment groups and its biological role and prognostic value should be further investigated.     

Parallel decline of CD8＋CD38＋ lymphocytes and viremia in treated hepatitis B patients

AIM:To assess the peripheral T lymphocyte subsets in chronic hepatitis B virus(HBV) infection,and their dynamics in response to adefovir dipivoxil monotherapy.METHODS:Proportions and absolute counts of peripheral natural killer cells,B cells,CD8+,CD4+,CD8+ CD38+,CD8+CD28+ and CD4+CD28+ T cells were determined using three-color flow cytometry in chronic hepatitis B patients(n = 35),HBV carriers(n = 25) and healthy controls(n = 35).Adefovir dipivoxil was initiated in 17 chronic hepatitis B patients who were r...     

支气管哮喘患者血清sCD86水平及联合吸入治疗对其影响的研究

目的 通过观测慢性持续期过敏性支气管哮喘(简称哮喘)患者外周血sCD86、白介素4(IL-4)、γ干扰素(IFN-γ)、嗜酸粒细胞(EOS)水平及其吸入沙美特罗替卡松治疗后的变化情况,探讨sCD86在哮喘发病机制中的作用.方法 23例未经过规范化治疗的慢性持续期过敏性哮喘患者给予吸入沙美特罗替卡松治疗,分别于治疗前、治疗1周、治疗1个月时检测肺功能、抽取外周静脉血检测EOS计数、测定血清sCD86、IL-4、IFN-γ,治疗前后进行上述指标的比较;12名正常组检测上述指标并与哮喘相比较.结果 ①哮喘组血清sCD86水平高于正常组[(0.565 7土0.123 9)IU/L比(0.457 5±0.074 8)IU/L,P＜0.05)],给予吸入沙美特罗替卡松治疗明显下降(P＜0.05);②哮喘组外周血 IL-4水平高于正常组(P＜0.01),而IFN-γ则明显低于正常组(P＜0.01),治疗后两者与正常组差异均无统计学意义;③哮喘组治疗前外周血EOS计数高于正常组(P＜0.01),治疗后持续下降;④相关分析示sCD86与IL-4、EOS呈正相关.结论 慢性持续期过敏性哮喘患者外周血sCD86水平和EOS计数明显升高,并存在IL-4/IFN-γ细胞因子失衡状态;给予沙美特罗替卡松吸入治疗后sCD86和EOS可下降并纠正IL-4/IFN-γ细胞因子失衡;慢性持续期过敏性哮喘患者外周血sCD86水平与EOS、IL-4密切相关,提示sCD86参与哮喘的发病.     

支气管哮喘患者血清sCD86水平及联合吸入治疗对其影响的研究

目的通过观测慢性持续期过敏性支气管哮喘（简称哮喘）患者外周血sCD86、白介素4（IL-4）、γ干扰素（IFN-γ）、嗜酸粒细胞（EOS）水平及其吸入沙美特罗替卡松治疗后的变化情况,探讨sCD86在哮喘发病机制中的作用。方法 23例未经过规范化治疗的慢性持续期过敏性哮喘患者给予吸入沙美特罗替卡松治疗,分别于治疗前、治疗1周、治疗1个月时检测肺功能、抽取外周静脉血检测EOS计数、测定血清sCD86、IL-4、IFN-γ,治疗前后进行上述指标的比较;12名正常组检测上述指标并与哮喘相比较。结果①哮喘组血清sCD86水平高于正常组[（0.5657±0.1239）IU/L比（0.4575±0.0748）IU/L,P〈0.05）],给予吸入沙美特罗替卡松治疗明显下降（P〈0.05）;②哮喘组外周血IL-4水平高于正常组（P〈0.01）,而IFN-γ则明显低于正常组（P〈0.01）,治疗后两者与正常组差异均无统计学意义;③哮喘组治疗前外周血EOS计数高于正常组（P〈0.01）,治疗后持续下降;④相关分析示sCD86与IL-4、EOS呈正相关。结论慢性持续期过敏性哮喘患者外周血sCD86水平和EOS计数明显升高,并存在IL-4/IFN-γ细胞因子失衡状态;给予沙美特罗替卡松吸入治疗后sCD86和EOS可下降并纠正IL-4/IFN-γ细胞因子失衡;慢性持续期过敏性哮喘患者外周血sCD86水平与EOS、IL-4密切相关,提示sCD86参与哮喘的发病。     

慢性乙型肝炎肝组织内HBsAg、HBcAg的表达及临床研究进展

一直以来临床将血清乙型肝炎e抗原(HBeAg)、乙肝病毒DNA(HBV DNA)阳性作为乙肝病毒复制的标志,随着肝穿活检及抗病毒治疗的研究进展,肝活检组织中乙肝表面抗原(HBsAg)和乙肝核心抗原(HBcAg)的表达模式与血清乙型肝炎病毒(HBV)DNA定量、肝组织炎症活动度分级及纤维化分期之间关系的临床研究日益增多,本文就HBsAg和HBcAg在肝组织的表达模式及临床研究进展综述如下.     

慢性乙型肝炎患者CD14~(high)CD16~+单核细胞表达特点研究

目的探讨慢性乙型肝炎(CHB)患者外周血中CD14~(high)CD16~+单核细胞频率、功能特点以及与疾病进程之间的关系。方法利用荧光抗体标记结合多色流式技术,检测CHB患者外周血CD14~(high)CD16~+单核细胞频率及表面TLR2分子的表达,用LPS刺激及细胞内染色方法检测CHB患者外周血CD14~(high)CD16~+单核细胞产生细胞因子的能力。结果 CHB患者外周血的CD14~(high)CD16~+单核细胞频率明显高于健康对照;CHB患者CD14~(high)CD16~+单核细胞频率与ALT呈负相关(R=0.739,P0.01),与HBV DNA载量成正相关(R=-0.283,P=0.008);CHB患者外周血CD14~(high)CD16~+单核细胞上TLR2的表达高于其他两个亚群;免疫活化CHB患者外周血在LPS刺激后,CD14~(high)CD16~+单核细胞亚群分泌IL-6的能力均高于CD14highCD16-和CD14lowCD16+单核细胞亚群。结论 CD14~(high)CD16~+单核细胞可能在清除肝炎病毒及肝脏免疫损伤中起重要作用。     

Usefulness of liver infiltrating CD86-positive mononuclear cells for diagnosis of autoimmune hepatitis

AIM: Although the pathogenic mechanism underlying autoimmune hepatitis (AIH) remains unclear, the immune system is thought to be critical for the progression of the disease. Cellular immune responses may be linked to the hepatocellular damage in AIH. Recently, much attention has been focused on the critical functions of costimulatory molecules expressed on mononuclear cells in the generation of effective T cell-mediated immune responses. Analysis of costimulatory molecule expressed on mononuclear cells from the patients with AIH may give us insight into the pathogenic mechanism of hepatocellular damage in AIH. METHODS: Peripheral blood mononuclear cells (PBMC) were taken from the patients with AIH (34 cases) and healthy controls (25 cases). Liver infiltrating mononuclear cells (LIMCs) were taken from the patients with AIH (18 cases), the patient with chronic hepatitis C (CH-C) (13 cases) and the patients with fatty liver (2 cases). Using flow cytometry, the cells were analyzed for the expression of costimulatory molecules, such as CD80, CD86, and CD152 (CTLA-4). The results were compared with clinical data such as the level of gammaglobulin, histological grade, presence or absence of corticosteroids administration and the response to corticosteroids. RESULTS: The levels of CD80 , CD86 and CD152 PBMC were significantly reduced in the patients with AIH as compared with healthy controls. By contrast, those cells were significantly higher in LIMC than in PBMC of the patients with AIH. Especially, the level of CD86 LIMC showed a marked increase irrespective of the degree of disease activity in the patients with AIH, although CD86 cells were rarely present in PBMC. The levels of CD86 cells were present in significantly higher frequency in patients with AIH than in the patients with CH-C. Furthermore, the patients with AIH with high levels of CD86 LIMC showed good responses to corticosteroids, whereas 2 cases of AIH with low levels of CD86 LIMC did not respond well. CONCLUSION: These results suggest that LIMC overexpressing costimulatory molecules such as CD80 and CD86 appears to play a role in the pathogenesis of AIH. Especially, CD86 molecule expressed on the LIMC may be useful for the diagnosis of AIH and for the prediction of the therapeutic effects of corticosteroids on AIH.     

慢性HBV感染患者外周血CD4~+CD25~+调节性T细胞表达及其临床意义

目的探讨CD4+CD25+调节性T细胞与慢性HBV感染后不同临床转归和临床特点的相关性。方法在26例慢性乙型肝炎(CHB)患者、15例无症状HBsAg携带者(ASC)和11例肝炎肝硬化(LC)患者和16例正常对照者,分离外周血单个核细胞(PBMC),采用流式细胞仪检测CD4+CD25+调节性T细胞的表达水平。结果CHB组和ASC组的CD4+CD25+调节性T细胞占CD4+T细胞的百分率分别为4.40±2.76%和4.43±2.10%,均高于正常对照组(2.70±0.97%),差异显著(P0.01);CD4+CD25+调节性T细胞的表达水平与HBVDNA水平无相关性(r=0.018,P0.05);在HBeAg阳性与阴性组患者CD4+CD25+调节性T细胞的表达也无明显的差异(P0.05)。结论慢性HBV感染者外周血CD4+CD25+调节性T细胞水平升高,可能与HBV感染的慢性化有关。