生殖器疱疹初发患者外周血淋巴细胞检测结果分析

目的检测生殖器疱疹初发患者（GH）外周血T淋巴细胞亚群、NK细胞和B细胞的表达水平,探讨其发病机制与细胞免疫功能之间的关系。方法应用流式细胞仪检测20例初发生殖器疱疹患者外周血T淋巴细胞亚群、NK细胞和B细胞的表达水平,并与60例复发性生殖器疱疹患者（RGH）、35例健康对照者外周血检测结果相比较。结果（1）初发组和对照组相比,除NK细胞降低差异有显著性外,其他差异无显著性;（2）初发组与复发组相比,初发组T细胞、CD4^＋细胞、CD4^＋／CD8^＋均高于复发组,CD8^＋细胞百分比低于后者,差异有显著性;B细胞、NK细胞比例差异无显著性;（3）复发组与对照组相比,外周血中T细胞、CD4^＋细胞、NK细胞所占比例,CD4^＋／CD8^＋均降低,差异有显著性;CD8^＋细胞百分比升高,差异有显著性;B细胞比例差异无显著性。结论生殖器疱疹初发患者存在细胞免疫功能异常。     

细胞蜡块诊断淋巴瘤18例

目的探讨18例浆膜腔积液中细胞学诊断淋巴瘤的临床病理学特征、免疫表型、诊断及鉴别诊断、治疗及预后。方法收集武汉大学人民医院2016年1月—2018年12月间由浆膜腔积液诊断为淋巴瘤患者18例,通过常规液基涂片、制作细胞蜡块、HE染色及免疫细胞化学染色,个别病例采用基因重排检测或流式细胞学检查,并部分对照其细胞学诊断和活检组织病理诊断的符合率。结果 18例均行免疫细胞化学检测,结果均为非霍奇金淋巴瘤。其中无淋巴瘤病史的有12例:包括4例弥漫性大B细胞淋巴瘤;1例淋巴浆细胞样淋巴瘤;1例浆细胞瘤;2例T淋巴母细胞淋巴瘤;1例NK/T细胞淋巴瘤;1例外周T细胞淋巴瘤,非特殊类型;2例T细胞淋巴瘤。其余6例均有淋巴瘤病史,其中4例为弥漫性大B细胞淋巴瘤,2例为血管免疫母细胞性T细胞淋巴瘤。结论浆膜腔积液是淋巴瘤的较常见并发症,细胞病理学诊断淋巴瘤难度虽相对较大,但通过制备细胞蜡块,在镜下观察肿瘤细胞成分单一,表现为大量散在分布的不成熟淋巴样细胞,细胞之间无黏附性,同时结合免疫细胞化学染色等相关检测方法,可明确诊断,值得推广。     

EB病毒诱导胸腺恶性T细胞淋巴瘤的研究

为研究EB病毒在恶性T细胞淋巴瘤发生中的作用,将EB病毒感染的人胚胸腺细胞移植于Scid鼠皮下,于移植后第3日起在移植处对侧皮下注射TPA50ng／只,每周1次。于移植后第4周起,移植处皮下有结节状隆起形成,并逐渐增大。于6－15周内行病理学检查和免疫组织化学染色,证实为T细胞淋巴瘤8例。其中实验组胸腺细胞＋EBV的成瘤率为25％（1／4）,胸腺细胞＋EBV＋TPA组的成瘤率为53.8%（7／13）,对照组胸腺细胞＋TPA的成瘤率为0（0／5）。PCR和 闰杂交在诱导肿瘤可可检测到EB病毒的基因EBERs、LMP1和BARF1,并有病毒基因LMP1蛋白编码产物的表达。EB病毒可感染人胚胸腺细胞,并使其发生恶性转化,EB病毒可能在恶性T细胞淋巴瘤的发生中起病因作用。     

双歧杆菌脂磷壁酸对B16荷瘤小鼠NK细胞受体NKG2D及其配体的影响

目的探讨双歧杆菌脂磷壁酸（LTA）对黑色素瘤B16荷瘤小鼠NK细胞受体NKG2D及其配体的影响。方法将黑色素瘤B16细胞接种于C57BL／6小鼠皮下,待触及肿块后于荷瘤小鼠皮下注射双歧杆菌LTA。采用MTT、流式细胞术（FCM）、RT-PCR方法分别检测经双歧杆菌LTA处理后B16荷瘤小鼠NK细胞杀伤活性、NK细胞NKG2D受体蛋白表达以及肿瘤组织内Rae-1、H60 mRNA表达的变化。结果与对照组相比,经双歧杆菌LTA处理后,B16荷瘤小鼠的NK细胞杀伤活性增强（P〈0．05）,NK细胞受体NKG2D表达明显增加（P〈0．05）,肿瘤组织Rae-1、H60 mRNA表达上升（P〈0．05）,并具有浓度依赖性。结论双歧杆菌LTA能够增强B16荷瘤小鼠NK细胞的杀伤活性,其机制可能与上调NK细胞受体NKG2D的蛋白表达和肿瘤组织Rae-1、H60 mRNA的表达有关。     

肠道非何杰金淋巴瘤与EB病毒感染的相关性研究

目的：研究肠道非何杰金淋巴瘤(NHL)与EB病毒(EBV)感染相关性。方法：利用EBV寡核探针(EBER)原位杂交法检测EB病毒。结果：16例肠道NHL好发部位于小肠下端和结肠,以单发瘤结节多见,常伴有溃疡形成。经免疫组化证实3例为T细胞淋巴瘤(18．75％),13例为B细胞淋巴瘤(81．25％)。：EBV—EBER原位杂交3例有阳性表达,均为T细胞淋巴瘤,阳性细胞占肿瘤细胞的25％～75％。B细胞淋巴瘤未见阳性表达。结论：肠道非何杰金淋巴瘤以B细胞淋巴瘤多发,并以惰性淋巴瘤为多见;而T细胞淋巴瘤多为侵袭性,且与EBV感染的相关性较高,与B细胞淋巴瘤无相关性。     

PCR方法检测淋巴结组织中结核菌L型的研究

用聚合酶链反应技术（ＰＣＲ），改良抗酸染色（ＩＫＳ）和结核菌抗体免疫组化染色（ＩＨＣ）三种方法检测６０例淋巴结组织中结核菌Ｌ型感染情况，以病理检查结果分为结核组（１３例），淋巴结非特异性炎症组（３０例）和淋巴结对照组（１７例）。各组三种方法检测阳性率分别为：ＰＣＲ８４．６％（１１／１３），６０％（１８／３０）．２３．５％（４／１７）．ｌＫＳ７６．３％（１０／１３），６６．７％（２０／３０）；１７．６％（３／１７）；ＩＨＣ８４．６％（１１／１３），６３．３％（１９／３０），１１．８％（２／１７）。三者均为阳性者为８０％。结果表明淋巴结非特异性炎症组感染率与结核组相似，与对照组间有显著性差异（Ｐ＜０．０５）。提示：结核菌Ｌ型可能是引起淋巴结非特异性炎症的致病因子之一，ＰＣＲ技术在淋巴结非特异性炎症的病原学诊断上具有重要价值。     

185例儿童急性白血病流式细胞术免疫分型研究

目的：探讨儿童急性白血病流式细胞术免疫分型的意义。方法：采用流式细胞术三色荧光标记技术和CD45／SSC双参数散点图设门,检测185例儿童急性白血病的免疫表型,对抗原表达情况进行分析。结果：流式细胞术免疫分型和FAB分型的符合率为89．19％。185例儿童急性白血病中,ALL为121例,占AL的65．41％,B—ALL为113例,主要表达B系的CD19（99．12％）、CD22（98．13％）、CD79a（96．19％）、CD10（86．73％）。T—ALL占8例;主要表达CD5（100％）、CD7（100％）、cCD3（100％）、CD8（87．5％）。AML为47例,占25．41％,主要表达CD33（93．62％）、CD15（78．72％）、CD64（76．6％）、MPO（76．6％）、CD13（74．47％）。在B—ALL,AML,T—ALL中,敏感性最高的抗体分别是CD19,CD33,CD5和CD7,特异性最强的抗体分别是CD79a,MPO,cCD3。AMLL为17例,占9．19％,其中B／M为9例,T／B为5例,T／M为3例。My＋-ALL为54例,占ALL的44．63％,表达的髓系抗原为CD13、CD15、CD33、CD64。Ly＋-AML为18例,占AML的38．30％,表达的淋系抗原为CD19、CD4、CD7。系列非相关抗原CD34的表达率为67．57％,HLA—DR的表达率为85．41％,CD38的表达率为80．59％,TdT的表达率为62．59％。结论：流式细胞术免疫分型在白血病分型中起重要作用,是FAB分型的补充和修正,提高了儿童急性白血病诊断的准确率。有必要进一步加强流式细胞术免疫分型的标准化工作。     

鼻腔鼻窦淋巴瘤相关因素及临床特征研究

目的：探讨早期鼻腔鼻窦淋巴瘤（NHL）相关因素及临床特征。方法：对经我院病理确诊为鼻腔鼻窦NHL的患者及来自同期收治的慢性鼻．鼻窦炎病例各28例,进行回顾性对照研究。统计分析应用SPSS17．0统计软件进行。结果：28例鼻腔鼻窦NHL中,NKfr细胞淋巴瘤18例,外周T细胞淋巴瘤7例,B细胞淋巴瘤3例。统计分析显示,对药物（麻黄素、肾上腺素）收缩反应差OR28．140（1．995．396．972）、发热OR99．366（0．752—13130．619）、粘膜不光滑OR34．665（1．464—820．575）、下鼻甲质地硬oR25．797（1．395-447．001）是鼻腔鼻窦NHL的高危指标。结论：对药物（麻黄素、肾上腺素）收缩反应差、发热、粘膜不光滑、下鼻甲质地硬是早期鼻腔鼻窦淋巴瘤的强危险信号和重要的诊断线索。     

c-erbB-2单克隆抗体A18在乳腺癌中表达特性的研究

目的：研究一株自制的c-erbB-2单克隆抗体A18在乳腺癌中表达的特性。方法：应用免疫组织化学SP法、蛋白质印迹分析法和荧光激活的流式细胞分选检测技术检测A18在635例乳腺癌组织、100例癌旁乳腺组织、不表达c-erbB-2的NIH／3T3（鼠成纤维细胞）和NE91（转表皮生长因子受体基因的NR6鼠成纤维面积）细胞株及高表达c-erbB-2的T6－17（转c-erbB-2－基因的NIH／3T3细胞）和SKBR3（人乳腺癌细胞）细胞株中的表达状况,并与市售进口c-erbB-2抗体（MaximBiotech产品）进行了平行对照研究。A18系采用细胞表面区域表位包埋法免疫小鼠制备而成,,结果：A18阳性染色定位于细胞膜,部分伴微弱的细胞浆着色,无明显非特异性染色,A18和进口抗体对NIH／3T3、NE91细胞均呈阴性,T6－17、SKBR3细胞均呈阳性,在乳腺癌组织中,A18的阳性率为60．3％,明显高于癌旁乳腺组织的5．0％,A18与进口同类单抗的阴性、阳性及总符合率分别为84．0％、82．8％及83．2％,与进口同类多抗的阴性,阳性及总符合率分别为88．0％、90．2％和89．5％。A1和进口同类单抗与乳腺癌临床病理特征的关系一致。经反复冻融7次或4℃保存10个月A18效价仍保持在3μg/ml。结论：A18特异性强,定位准确,效价高而稳定、可用于临床乳腺癌的检测。     

鼻咽癌组织ki67表达与外周血NK细胞的关系及意义

目的：研究鼻咽癌组织Ki67的表达及外周血NK细胞水平的意义。方法：检测66例鼻咽癌组织Ki67水平及与外周血NK细胞的百分含量。结果：Ki67表达阳性率为96．97％,与临床分期有关（r=0．290,P=0．030〈0．05）,与淋巴结转移状态相关性在统计学上无意义（r=0．068,P=0．412〉0．05）;放疗前中后鼻咽癌外周NK细胞水平差别均有统计学意义（前中、中后、前后F=0．513,0．627,0．623,P分别为0．005,0．004,0．000,均〈0．05）;ki67的表达与放疗后NK细胞NK值负相关（r=-0．433,P=0．017〈0．05）。结论：Ki67的表达可能与临床分期有关,可能与放疗后NK值有关;Ki67表达与外周血NK细胞水平可以提示鼻咽癌组织增殖活跃程度和机体防御系统的状态.     

NK cell lymphoma, nasal type, with massive lung involvement: a case report

Extranodal NK/T cell lymphoma, nasal type, is an Epstein–Barr virus-associated lymphoma that most commonly involves the nasal cavity and upper respiratory tract. Lung involvement by NK/T cell lymphoma is rare and seldom reported in the literature. We describe the unusual case of a 41-year-old male with NK cell lymphoma, nasal type, who presented with massive secondary lung involvement 2.5 years after the detection of a retroperitoneal mass. The diagnosis was made by open lung biopsy. Despite aggressive treatment, the patient died shortly after the initiation of therapy. Lung involvement by NK/T cell lymphoma occurs most commonly as part of widely disseminated disease and carries a poor prognosis for the patient. Novel agents and innovative therapies need to be developed for this aggressive lymphoma.     

前列腺癌组织及PC-3细胞中STAT3及磷酸化STAT3的表达

目的　研究前列腺癌组织及前列腺癌细胞株PC- 3 中STAT3 蛋白及磷酸化STAT3 蛋白的表达。方法　常规石蜡包埋切片SABC免疫组化法检测45例前列腺癌组织、20例前列腺增生组织中STAT3 及磷酸化STAT3 表达, 细胞免疫化学法检测前列腺癌细胞株PC 3细胞STAT3及磷酸化STAT3表达。结果　STAT3在前列腺癌及前列腺增生组织表达阳性率分别为77. 8%和50. 0%, 两者间具有显著差异; 磷酸化STAT3在前列腺癌及前列腺增生组织表达阳性率分别为68. 9%和35. 0%, 两者间具显著差异(P<0 .05); PC- 3细胞中STAT3及磷酸化STAT3表达阳性。结论　STAT3蛋白在前列腺癌中高表达且持续激活, 可能与前列腺癌的发生具有密切联系。     

Epstein-Barr病毒相关T/NK细胞淋巴瘤与B细胞淋巴瘤的临床分析

Epstein-Barr病毒(Epstein-Barr virus,EBV)是可导致人类感染的淋巴滤泡病毒,感染非常普遍。本研究通过对2013年1月-2016年12月于复旦大学附属华东医院就诊并确诊为淋巴瘤且伴有EBV感染的49例患者的临床资料进行回顾性分析,探讨EBV相关淋巴瘤患者的临床特点及生存情况。结果显示,49例EBV相关淋巴瘤患者中,18例为B细胞淋巴瘤,31例为T/NK细胞淋巴瘤。EBV相关B细胞淋巴瘤与T/NK细胞淋巴瘤患者之间白细胞、血小板、丙氨酸氨基转移酶、天冬氨酸氨基转移酶、乳酸脱氢酶、铁蛋白、纤维蛋白原、红细胞沉降率、C反应蛋白的差异有统计学意义(P<0.05)。中位随访5.0个月,49例患者的1个月、6个月、1年、3年生存率分别为 84.4%、59.8%、53.2%、40.3%。结果表明,与EBV相关B细胞淋巴瘤患者相比,EBV相关T/NK细胞淋巴瘤患者的肝功能损伤严重,更易合并噬血细胞综合征,生存期更短,但生存期差异无统计学意义。     

NK/T cell non-Hodgkin lymphoma in a HIV-positive patient

NK/T lymphomas have rarely been reported in HIV/AIDS patients. Here we report a case of a 37-year-old woman, with AIDS and a recent diagnosis of Kaposi sarcoma in a mesenteric lymph node, who presented with extra-ocular nerve palsies and gastrointestinal bleeding. A small intestine resection specimen revealed an extra-nodal NK/T cell lymphoma, nasal type. The unique presentation of this rare and aggressive lymphoma in the setting of AIDS and Kaposi sarcoma underscores the importance of maintaining a broad differential diagnosis when evaluating a malignant neoplasm from a HIV-positive patient.     

淋巴细胞发育相关基因在鼻腔NK/T细胞淋巴瘤中表达的研究

探索鼻腔NK/T细胞淋巴瘤(N-NK/T-L)中淋巴细胞发育相关基因的表达及意义。方法:通过对EOMEs,ETS-1和MEF基因进行克隆、探针制备和组织芯片制备,对25例N-NK/T-L以及同部位11例B细胞淋巴瘤(BCL)、6例T细胞淋巴瘤(TCL)、3例正常脾组织和5例慢性炎性鼻黏膜组织进行了原位杂交检测。结果:EOMES、ETS-1、MEF基因在N-NL/T-L、BCL、TCL、脾和鼻粘膜中均有表达,但阳性率和表达强度不同。EOMES基因在N-NK/T-L的表达强度与BCL和TCL间有差异,MEF基因在N-NK/T-L的表达阳性率和强度与TCL间有差异,而ETS-1基因在N-NK/T-L与对照组间的表达无差异。T-bet、EOMES和MEF基因在N-NK/T-L的表达具有相关性。结论EOMES和MEF基因在N-NK/T-L中高表达,可能在该肿瘤发生和组织坏死中起重要作用,而ETS-1因在N-NK/T-L和对照组中普遍表达,提示其可能在淋巴造血系统的发育和功能中起基础性的共同通路。     

Toward a comprehensive quantitative proteome database: protein expression map of lymphoid neoplasms by 2-D DIGE and MS

Using 2-D DIGE, we constructed a quantitative 2-D database including 309 proteins corresponding to 389 protein spots across 42 lymphoid neoplasm cell lines. The proteins separated by 2-D PAGE were identified by MS and assigned to the expression data obtained by 2-D DIGE. The cell lines were categorized into four groups: those from Hodgkin's lymphoma (HL) (4 cell lines), B cell malignancies (19 cell lines), T cell malignancies (16 cell lines), and natural killer (NK) cell malignancies (3 cell lines). We characterized the proteins in the database by classifying them according to their expression level. We found 28 proteins with more than a 2-fold difference between the cell line groups. We also noted the proteins that allowed multidimensional separation to be achieved (1) between HL cells and other cells, (2) between the cells derived from B cells, T cells and NK cells, and (3) between HL cells and anaplastic large cell lymphoma cells. Decision tree classification identified five proteins that could be used to classify the 42 cell lines according to differentiation. These results suggest that the quantitative 2-D database using 2-D DIGE will be a useful resource for studying the mechanisms underlying the differentiation phenotypes of lymphoid neoplasms.     

Diagnosis of natural killer cell lymphoma by cytology and flow cytometric immunophenotyping. A case report

BACKGROUND: Natural killer (NK) cell lymphoma is a rare type of non-Hodgkin's lymphoma. It classically presents in the nasal region in Asian patients. There are few reports of its cytologic features. We describe a case that we diagnosed by fine needle aspiration (FNA) biopsy using flow cytometry immunophenotyping and cytomorphology. CASE: A 55-year-old, Chinese man presented with symptoms consistent with nasal obstruction. At examination, a polypoid lesion extending from the nose to the back of the throat was found. An intraoral FNA biopsy was performed. Representative smears were obtained and the remainder of the material sent for flow cytometry. A diagnosis of NK cell lymphoma was made. The patient was given chemotherapy and radiotherapy, with complete resolution of the lesion. Recurrence was noted on follow up seven months later. Pieces of tissue were taken for histology and flow cytometry and showed recurrent NK cell lymphoma. The lesion was again successfully treated by chemotherapy followed by radiotherapy. CONCLUSION: In the correct setting, a definitive diagnosis of non-Hodgkin's lymphoma can be made by FNA biopsy. This case of NK cell lymphoma was diagnosed by FNA biopsy using cytomorphology, flow cytometry immunophenotyping and clinical correlation.     

Serum B-cell activating factor predicts prognosis in nasal type,extranodal NK/T cell lymphoma

B-cell activating factor (BAFF) plays important roles in a variety of lymphoid malignancies. Compared with healthy adults, patients with non-Hodgkin lymphoma had higher level of serum BAFF, and it corresponded with disease severity, response for therapy and clinical outcome. Latent membrane protein 1 (LMP1) encoded by Epstein-Barr virus (EBV) which is a known agent of nasal, extranodal NK/T cell lymphoma (ENKTCL) can switch the BAFF activating promoter leading to higher expression of BAFF in EBV-related tumor cells. However, the relationship between BAFF and ENKTCL has not been reported. Here we proposed a hypothesis that BAFF might play a regulatory role in ENKTCL development and maintenance. Our results showed that serum BAFF in ENKTCL patients was significantly higher than that in control group and negatively correlated with patients’ survival. It may be a valuable prognostic factor and deserved further study.     

Functional requirement for SAP in 2B4-mediated activation of human natural killer cells as revealed by the X-linked lymphoproliferative syndrome

X-linked lymphoproliferative syndrome (XLP) is an immunodeficiency characterized by life-threatening infectious mononucleosis and EBV-induced B cell lymphoma. The gene mutated in XLP encodes SLAM (signaling lymphocytic activation molecule-associated protein)-associated protein (SAP), a small SH2 domain-containing protein. SAP associates with 2B4 and SLAM, activating receptors expressed by NK and T cells, and prevents recruitment of SH2 domain-containing protein tyrosine phosphatase-2 SHP-2) to the cytoplasmic domains of these receptors. The phenotype of XLP may therefore result from perturbed signaling through SAP-associating receptors. We have addressed the functional consequence of SAP deficiency on 2B4-mediated NK cell activation. Ligating 2B4 on normal human NK cells with anti-2B4 mAb or interaction with transfectants bearing the 2B4 ligand CD48 induced NK cell cytotoxicity. In contrast, ligation of 2B4 on NK cells from a SAP-deficient XLP patient failed to initiate cytotoxicity. Despite this, CD2 or CD16-induced cytotoxicity of SAP-deficient NK cells was similar to that of normal NK cells. Thus, selective impairment of 2B4-mediated NK cell activation may contribute to the immunopathology of XLP.