Subcutaneous Panniculitis-like T-cell Lymphoma： A Report of 3 Cases

Objective To analysis the histopathological features for diagnosis of subcutaneous panniculitis-like T-cell lymphoma （SPTL）. Methods Clinicopathological changes, immunohistochemical feature were studied in 3 cases of SPTL. Results There was an infiltration of atypical lymphocytes surrounding an adipose cell, in panniculitis-like pattern, in subcutaneous tissue necrosis were found in the tumor cells showed T-cell phenotype. The patients presented with single or multiple nontender subcutaneous nodules or plaques or multiple ulcus. The patients accompanied by moderate or high fever, histologically, the lesions were primarily confined to the subcutaneous tissue and the tumor cells infiltrated between adipocytes. Immunohistochemical analysis found the tumou-cell were LCA＋ or CD45RO＋ or CD3＋, as well as CD20- and CD68-. Conclusion SPTL is a type of Peripheral T-cell lymphoma with unusual clinical and morphologic features. It is a new subtype of primary skin lymphoma. Genetic analysis is an effective method for the diagnosis of SPTCL neoplasm; lymphoma.     

Genetic study of a large Chinese kindred with von Hippel-Lindau disease

Background Von HippeI-Lindau (VHL) disease is a heraditary cancer syndrome caused by germline mutations of the VHL tumor on the suppressor gene. This study was to show the clinical characteristics of a large Chinese kindred with yon HippeI-Lindau disease and to evaluate the role of the genetic test of VHL disease in the diagnosis of VHL disease and clinical screening of members of the VHL disease family.Methods DNA extracted from peripheral blood was amplified by PCR to three exons of the VHL gene in 27 members of a large kindred with VHL disease. PCR products were directly sequenced. The involvements of multi-organs in the kindred with VHL disease were confirmed by history taking and radiography.Results Of 47 members in the four generations of the kindred, 18 members were diagnosed as having VHL desease. Clinical manifestations of 18 patients included: central nervous system (CNS)hemangioblastoma (5), renal cell carcinoma and CNS hemangioblastoma (3), renal cell carcinoma and retinal angioma (3), renal cell carcinoma and multiple pancreatic cysts (1), renal cell carcinoma and retinal angioma and multiple pancreatic cysts (2), renal cell carcinoma and CNS hemangioblastomas and multiple pancreatic cysts (1), and multiple pancreatic cysts and multiple renal cysts (1), multiple pancreatic cysts (2). The common lesions of the 18 patients were renal cell carcinoma (55.6%), CNS hemangioblastoma (50.0%), retinal angioma (27.8%), and multiple pancreatic cysts (38.9%). Among the 27 members who volunteered for genetic analysis, 15 members including 9 affected family patients and 2 asymptomatic patients and 4 carriers, who are still alive, presented a codon 78 from Asn to Ser change at nucleotide 446 (A→G) in exon 1. Four members were carriers with the same VHL gene mutation. Two asymptomatic patients were initially diagnosed by genetic testing and subsequently confirmed radiologically and surgically. Members without gene mutation had no clinical evidence of VHL disease.Conclusions The large Chinese kindred with VHL disease was classified as type I . The main characteristics in the kindred were higher incidence of renal cell carcinoma and lower incidence of retinal angioma. Genetic test plays an important role in early detecting asymptomatic patients and the carriers in clinical screening of members of the families with VHL disease. It is also important to prevent the transmission of VHL disease to their offsprings in the kindred.     

Investigation on lymphocyte subpopulations in the intestinal lamina propria in inflammatory bowel diseases.

Intestinal lamina proprial lymphocytes were enumerated in 13 patients with Crohn's disease (CD), 7 with ulcerative colitis (UC) and 9 control subjects with grossly normal bowel. The percentages and absolute numbers of B cells and complement receptor-bearing lymphocytes in the patients with UC did not differ significantly from those of the control group; but in CD, the percentages of these cells were significantly decreased despite that the absolute numbers were normal. The percentages and absolute numbers of T cells identified by E rosettes (regular and stable) were normal in both CD and UC. In both diseases, significantly increased percentages but normal absolute numbers of mature T cells were identified by monoclonal antibody staining with the CD3 reagent. There was an increased proportion of suppressor/cytotoxic T cells and a concomitant significant decrease of the helper to suppressor T-cell ratio (using either percentages or absolute numbers of cells) in tissues from patients with CD, but not with UC as compared with the control group. These results suggest that the imbalance of T-cell subpopulations in the intestinal lamina propria may play a role in the pathogenesis of CD.

     

Association between Nef-specific CD8 T-cell responses and disease progression in HIV-1 subtype B infection

Background The correlation between HIV-1 Nef-specific CD8 T-cell responses and markers of HIV-1 disease progression still remains unclear. This study analysed and compared the role of HIV-1 Nef-specific CD8 T-cell responses in patients with different disease status. Methods Two groups of patients with HIV-1 subtype B infection were selected according to CD4 count and clinical manifestations： long-term nonprogresssors （LTNPs, n = 20） and advanced progressors （APs, CD4 count 〈500 cells/pl, n = 34）. Nef-specific CD8 T-cell responses were studied by interferon- T ELISpot assay against 3 pools of HIV-Nef peptides. Results Nef-specific CD8 T-cell responses did not correlate with viral load or CD4 count in all patients and no significant differences were found in the magnitude of Nef-specific CD8 T-cell responses between groups LTNPs and APs （670 SFC/106 peripheral blood mononuclear cells vs 1107 SFC/106 peripheral blood mononuclear cells, P = 0.255）. Further comparisons showed that there were also no significant correlations observed in group LTNPs, but Nef-specific CD8 T cells correlated negatively with viral load （r = -0.397, P = 0.020） and positively with CD4 count （r = 0.364, P = 0.034） in group APs. Conclusion These data suggest that different correlation patterns between Nef-specific CD8 T-cell responses and disease progression exist in LTNPs and APs. Although a negative association was observed with concurrent plasma HIV RNA in APs, Nef-specific CD8 T-cell responses might fail to play a protective role in different stages of HIV- 1 infection.     

Clinicopathological Characteristics and Prognosis of Patients with Adenosquamous Lung Carcinoma

This study was aimed to characterize clinicopathological features and prognosis of patients with adenosquamous lung carcinoma(ASC). Among the 2531 patients with lung cancer who underwent surgery between January 2000 and June 2012 in our hospital, 59 were histologically diagnosed as having ASC. The clinicopathological features and follow-up data of ASC patients were collected and analyzed statistically. Superior lobectomy was accomplished in 40 patients, middle and inferior lobectomy in 3, lobectomy plus partial resection of contralateral lung in 5, partial lung resection in 4, and pneumonectomy in 7. Moreover, 22 cases were found to be adenocarcinoma-predominant, and 18 to be squamous cell carcinoma-predominant. The median survival time was 13.6 months, and the 1-, 3-, and 5-year survival rates were 59.9%, 36.4% and 31.2%, respectively. Of the 52 cases with tissue specimens available, 11 had an EGFR mutation(21.2%) and 2 had a KRAS mutation(3.8%). Multivariate analysis showed that histology subtype, pleural invasion, TNM stage, and postoperative treatment were all independent prognostic factors. The data from the current study demonstrated that SCC-predominant histology represents a better prognosis of ASC. Histology subtype, pleural invasion, TNM stage, and postoperative treatment are independent prognostic factors for ASC and adjuvant therapy may help control the disease.     

Primary cutaneous CD30-positive anaplastic large cell lymphoma analysis

Objective To examine 10 cases with primary cutaneous CD30-positive anaplastic large cell lymphoma (ALCL), analyze their clinical manifestations and pathological and immunohistochemical features, and improve early diagnosis of this disease. Methods We studied the morphological characteristics of primary cutaneous CD30-positive ALCL using histopathological methods.Leukocyte common antigen (LCA), CD20, CD30, CD45RO, CD68, epithelial membrane antigen (EMA), cytokeratin (CK) and HMB45 antibodies were used to determine the expression of their respective antigens from routine paraffin samples of the patients.Results Ten patients (7 men and 3 women, aged 31 to 84 years) complained of subcutaneous masses or papular eruptions over their lower trunks and extremities.Histopathologically, the lesions were composed of numerous large round or oval pleomorphic cells.The cytoplasm was usually abundant, amphophilic or basophilic, and finely vacuolated.Nuclei were commonly eccentrically localized and lobated or horseshoed in shape, and multinucleated giant cells and Reed-Sternberg-like cells were seen.Nucleoli were generally multiple and large.Of the 10 patients, tumor cells displayed positive antigen expression of CD30 in all cases, positive CD45RO in 6 cases, positive CD20 in only 1 case, but negative CD45RO and CD20 expressions in 3 cases.Two patients died at 7 weeks and 34 years of follow-up, respectivelyConclusion Our study highlights the importance of histopathologic features and positive CD30 staining for differentiation of this disease from other malignant skin tumors.     

The Effectof BCG-PSN on T-cell Subsets and Cytokines in Vernal Conjunctiviti

The effects of BCG-PSN on T-cell subsets and cytokines in vernal conjunctivitis were observed. The level of total IgE was quantitatively determined before and after treatment with BCGPSN by allergen diagnostic instrument in vitro. The content of T-cell subsets of peripheral blood and cytokine were determined by using indirect immune fluorescence method, and IL-4 and INF-γ were quantified by ELISA. The results showed that the level of total IgE was substantially reduced (P＜0.01) after treatment in the BCG-PSN group. Meanwhile, CD8 was decreased, CD4 and CD4 /CD8 ratio elevated with significant differences (P＜0. 05) as compared with pre-treatment results. The changes in total IgE, CD 8 ,CD4 and CD4 /CD 8 ratio after treatment also presented significant differences (P＜0. 05) between BCG-PSN group and routine treatment group. The level of IL-4 in serum declined (P＜0. 05) after treatment in the BCG-PSN group, and INF-γ went up (P＜0.05). IL-4and INF-γ in serum showed significant differences (P＜0. 05) between two groups after treatment.It is concluded that BCG-PSN has a bi-directional immunoregulating effect. It can bring CD4 and CD 8- into homeostasis, thereby preventing the occurrence of anaphylaxis. At the same time, BCGPSN can restrain Th2, decrease the synthesis of IL-4, switch the balance of Th1/Th2 to Th1 side,boost up the predominance of Th1 relatively, which is propitious to perennial stabilization and recov cry of vernal conjunctivitis.     

Bilateral Pheochromocytoma as First Presentation of von HippeI-Lindau Disease in a Chinese Family

Objective To investigate the clinical and genetic features of a Chinese family with yon Hippel- Lindau （VHL） disease revealed by bilateral pheochromocytoma. Methods The proband and other members in a Chinese family with familial pheochromocytoma were clinically evaluated and followed up. Genomic DNA extracted from the peripheral blood of 8 family members （including 3 patients） was amplified by polymerase chain reaction （PCR） and the PCR products were directly sequenced. Results The first presentation in the proband, his mother, and his sister was bilateral pheochromocytoma, and the missense mutation of 695G-A （Arg161Gln） in exon 3 of VHL gene was detected in the three patients. In the follow-up study, the proband and his mother were found to have other VHL tumors, induding retinal and cerebellar hemangioblastomas and pancreatic tumor. Neither clinical presentation of VHL disease nor gene mutation was found in other family members. Conclusion VHL disease should be suspected in some patients with familial pheochromocytoma, and VHL gene screening helps to achieve early diagnosis of the disease.     

Expression of IFN-γ and its receptor alpha in the peripheral blood of patients with chronic hepatitis C

Background It has been known that intra-cellualr immunity is important for defense against viral infections and this function lies with interferon gamma (INF-γ). Here we evaluated the role of IFN-γ system in the pathogenesis of chronic hepatitis C (CHC).Methods The levels of interferon gamma receptor alpha (IFNGRα) on the peripheral lymphocyte membrane were assayed with flow cytometry. The plasma concentrations of the cytokines IFN-γ and IL-10 in CHC patients and normal controls were assayed by enzume-linked-immunosorbent assay (ELISA). The samples were collected randomly from Xinjiang Autonomous Region, Zhejiang and the northern regions of Jiangsu Province in China. Results The levels of IFNGRα in CHC patients were significantly lower than that of normal controls (NC), especially among patients during the stable stage (P<0.001), whereas there were no significant differences between CHC in active and stable stages. Among the patients of the three regions, there were no significant differences between patients from Xinjiang and Zhejiang provinces, but both had statistically significant difference compared with the patients from Jiangsu Province (P<0.001). Plasma IFN-γ and IL-10 concentrations in CHC patients decreased significantly, IFN-γ in particular, but there were no significant differences in these levels between various stages of the disease. The IFN-γ/IL-10 (Th1/Th2 ) ratio in patients was reversed. Conclusion There may be defects in the IFN-γ system in chronic HCV infected subjects and a low immune response, which may play an important role in the persistence of HCV infection.     

Effects of single nucleotide polymorphisms 869 T/C and 915 G/C in the exon 1 locus of transforming growth factor-β1 gene on chronic obstructive pulmonary disease susceptibility in Chinese

Background The main risk factor for chronic obstructive pulmonary disease （COPD） is cigarette smoking. However, only 10%-20% of chronic heavy smokers develop systematic COPD. We hypothesized that the inheritance of gene polymorphisms could influence the development of COPD, which was investigated by studying two single nucleotide polymorphisms （SNP） in exon 1 of the transforming growth factor-β1 （TGF-β1） gene. Methods We enrolled 219 patients with COPD as the research group and 148 healthy people as the control group, all of whom were Chinese Han people. The polymorphisms of the TGF-β1 gene, 869T/C and 915G/C, were analyzed using the method of amplification refractory mutation system-polymerase chain reaction （ARMS-PCR）. Results The occurrence of the TGF-β1 gene 869T/C polymorphism in patients with COPD was significantly different from the control group （P 〈0.05）, in which the relative risk of this disease increased in cases who had the C allele （OR： 1.131, 95% CI： 1.101-1.539）. There was no increased frequency of TGF-β1 915G/C gene in COPD patients compared with control subjects （P 〉0.05）. Conclusions The polymorphism 869T/C in TGF-β1 gene has a significant association with disease occurrence in COPD patients and the C allele might be a risk factor. The homozygous wild-type CC of 869T/C on TGFβ1 could be a predisposing factor in COPD and those who carry the C allele might have particularly susceptibility to developing COPD.     

EB病毒与上呼吸道NK/T细胞淋巴瘤的关系

目的:研究上呼吸道NK/T细胞淋巴瘤的病理及免疫表型特征,探讨EB病毒(EBV)感染和上呼吸道NK/T细胞淋巴瘤发生、发展的关系。方法:采用免疫组织化学方法检测47例上呼吸道NK/T细胞淋巴瘤中有关免疫表型CD20、CD3、CD79a、细胞毒颗粒相关抗原-1(TIA-1)、CD56、CD45RO、颗粒酶B(Granzyme B),以此确定上呼吸道NK/T细胞淋巴瘤细胞免疫表型及EBV潜伏蛋白(LMP-1),原位杂交技术检测EBV编码的RNA(EBER 1/2)。结果:CD3、CD56、CD45RO、Granzyme B阳性表达率达100.0%,EBER阳性表达率达87.2%;LMP-1阳性表达率为40.4%。结论:感染EBV与上呼吸道NK/T细胞淋巴瘤的发生、发展有密切关系。     

Clinicopathology, immunophenotype, T cell receptor gene rearrangement, Epstein-Barr virus status and p53 gene mutation of cutaneous extranodal NK/T-cell lymphoma, nasal-type

Background Extranodal natural killer/T-cell (NK/T cell) lymphoma,nasal-type,is a rare lymphoma.Skin is the second most common site of involvement after the nasal cavity/nasalpharynx.The aim of this study was to investigate the clinicopathologic features,immunophenotype,T cell receptor (TCR) gene rearrangement,the association with Epstein-Barr virus (EBV) infection and p53 gene mutations of the lymphoma.Methods The clinicopathologic analysis,immunohistochemistry,in situ hybridization for EBER1/2,TCR gene rearrangement by polymerase chain reaction (PCR),mutations of p53 gene analyzed by PCR and sequence analysis were employed in this study.Results In the 19 cases,the tumor primarily involved the dermis and subcutaneous layer.Immunohistochemical staining showed that most of the cases expressed CD45RO,CD56,CD3ε,TIA-1 and GrB.Three cases were positive for CD3 and two cases were positive for CD30.Monoclonal TCRY gene rearrangement was found in 7 of 18 cases.The positive rate of EBER1/2 was 100％.No p53 gene mutation was detected on the exon 4-9 in the 18 cases.Fifteen cases showed Pro (proline)/Arg (arginine) single nucleotide polymorphisms (SNPs) on the exon 4 at codon 72.The expression of p53 protein was 72％ (13/18) immunohistochemically.Conclusions Cutaneous NK/T-cell lymphoma is a rare but highly aggressive lymphoma with poor prognosis.No p53 gene mutation was detected on the exon 4-9,and Pro/Arg SNPs on p53 codon 72 were detected in the cutaneous NK/T-cell lymphoma.The overexpression of p53 protein may not be the result of p53 gene mutation.     

西宁地区居民鼻腔NK/T细胞淋巴瘤中细胞毒蛋白的表达及其与EB病毒感染的关系

目的 探讨西宁地区居民鼻腔NK/T细胞淋巴瘤中细胞毒蛋白的表达及其与EB病毒(EBV)感染的关系.方法 以西宁地区和西安地区鼻腔NK/T细胞淋巴瘤各55例石蜡标本为研究对象,同部位B细胞淋巴瘤20例为对照,采用免疫组织化学方法检测CD45RO、CD3、CD20、CD56、TIA-1确定肿瘤细胞的免疫表型.采用原位杂交技术检测EBV编码的mRNA(EBER).结果 西宁地区55例鼻腔NK/T细胞淋巴瘤中CD45RO阳性55例(100％),CD3阳性50例(90.9％),TIA-1阳性36例(65.5％),CD56阳性30例(54.5％),EBER阳性50例(90.9％);西安地区55例鼻腔NK/T细胞淋巴瘤中CD45RO阳性55例(100％),CD3阳性52例(94.5％),TIA-1阳性32例(58.2％),CD56阳性33例(60％),EBER阳性35例(63.6％);两地CD20均阴性.20例面部B细胞淋巴瘤中CD45RO、CD3、TIA-1、CD56均阴性,CD20均阳性,EBER阳性2例(10％).结论 西宁地区鼻腔NK/T细胞淋巴瘤中EBV感染率明显高于西安地区,提示EBV感染与西宁地区鼻腔NK/T细胞淋巴瘤的相关性更强.TIA-1对NK/T细胞淋巴瘤的标记有很好的敏感性和特异性,但无地区性.     

肝脾T细胞淋巴瘤临床病理学分析

目的:探讨肝脾T细胞淋巴瘤(hepatosplenic T cell lymphoma,HSTCL)的临床病理特征和病理诊断.方法:复习3例HSTCL患者的临床病理资料,免疫表型,EB病毒(Epstein-Barr virus,EBV)原位杂交及T细胞受体γ (T cell receptor γ,TCBγ)基因重排检测.结果:例HSTCL中,骨髓1例呈间质和窦性浸润,2例呈间质及弥漫性浸润;肝1例和脾1例呈窦性浸润.免疫组化:例均CD3、TIA-1强阳性,而粒酶B阴性;CD56阴性;TCRβ阴性;3例EBV原位杂交均阴性.TCRγ基因重排检测2例呈单克隆性,1例呈弥散态.结论:STCL是一种罕见的非活化T细胞毒性的外周T细胞淋巴瘤(peripheral T cell lymphoma,PTCL),EBV原位杂交阴性和TCRγ脚基因克隆性重排有助于诊断和鉴别诊断.我国病例与国际报道病例临床病理特征基本一致.     

原发性肠道T细胞淋巴瘤临床特点分析

目的通过病例分析了解原发性肠道T细胞淋巴瘤临床特点。方法回顾分析收治的5例原发性肠道T细胞淋巴瘤患者的临床资料。结果本组5例患者,男性2例,女性3例,中位年龄51．6岁。病变多位于回肠或回盲部。临床表现以腹痛、体重下降、发热、腹泻为主。免疫表型CD3、CD45RO、TIA-1、粒酶B阳性,CD20、CD79α、CK阴性。生存时间2周～12个月,中位生存期2个月,5例均于确诊1年内死亡。结论原发性肠道T细胞淋巴瘤临床上极为少见,临床表现缺乏特异性,病程凶险,目前无有效治疗方案,预后差。     

肠病性T细胞淋巴瘤临床病理特征分析

目的:探讨肠病性T细胞淋巴瘤(enteropathic T-cell lymphoma,ETCL)临床病理特点、免疫表型及分子遗传学特征。方法:对1例ETCL的临床、病理组织学、免疫表型及免疫球蛋白重链和T细胞受体(TCR)基因克隆性重排进行观察并复习相关文献。结果:眼观部分回肠及右半结肠切除标本:回肠、结肠节段性溃疡。镜检回肠浅表溃疡病变累及黏膜层和黏膜下层,深度溃疡病变累及全层,肠壁各层在炎症背景下出现异常淋巴细胞浸润。结肠病变与回肠相同。免疫表型见瘤细胞呈CD43+,CD45RO+,CD56+,TIA1+,GB+,PF+,CD3-,CD3(单),CD30-,EMA-,CD20-,CD79a-。TCRγ重排:JVⅠ(+)JVⅡ(+)。EBER原位杂交检测(-)。结论:ETCL多发生于青年男性,临床症状多无特异性,病程发展迅猛,预后极差。病变的肠管表现为多发性溃疡,TCRγ克隆性重排。     

儿童系统性EB病毒阳性T细胞淋巴增殖性疾病临床病理学分析

目的:探讨儿童系统性EB病毒(Epstein-Barr virus,EBV)阳性T细胞淋巴增殖性疾病(EBV-positive T-cell lymphoproliferative disease of childhood,儿童EBV+TLPD)的临床病理学特征。方法:对3例儿童EBV+TLPD进行临床特点、病理学形态及免疫表型特征比较,EBV原位杂交和T细胞受体γ(T cell receptorγ,TCRγ)基因重排检测。结果:3例儿童EBV+TLPD患儿发病年龄分别为2岁、7岁和10岁。就诊时均表现为发热,肝、脾、淋巴结肿大,肝功能异常,例2患儿伴有皮疹症状。实验室检查证实体内存在EBV感染。病理组织形态:淋巴结结构破坏,扩张副皮质区内毛细血管后微静脉树枝状增生,伴多量小至中等大异型淋巴细胞弥漫增生。免疫组织化学:肿瘤细胞表达细胞毒T细胞相关标记:CD3、CD5、T-bet和TIA-1均阳性,粒酶B 2例阳性,CD4和CD8 2例双阳性、1例双阴性,CD56、CD21和CXCL13均阴性;原位杂交检测3例均EBV阳性;TCRγ基因PCR检测2例阳性。结论:儿童EBV+TLPD是一种少见的活化细胞毒T细胞的外周T细胞淋巴瘤,EBV原位杂交和分子克隆技术分析有助于诊断。我国病例与国际报道病例临床病理特征基本一致。     

中线T细胞淋巴瘤的免疫表型及其与EB病毒感染的相关性

目的:探讨中线T细胞淋巴瘤(MTL)的免疫表型特征及其与EB病毒(EBV)感染的关系。方法:采用免疫组织化学方法检测41例MTL组织CD45RO、CD3ε、CD56、CD20、TIA-1、Granzyme B以及EBV潜伏膜蛋白(LMP-1)的表达,原位杂交技术检测EBV转录产物RNA(EBER1/2)。结果:①CD45RO阳性41例(100%),CD3ε、TIA-1阳性25例(60.98%),Granzyme B阳性22例(53.66%),CD56阳性21例(51.22%),CD20全部阴性。②EBER1/2阳性29例(70.73%),LMP-1阳性17例(41.46%);NK/T细胞淋巴瘤(21/25)明显高于外周T细胞淋巴瘤(8/16)的EBER1/2阳性表达(P<0.05)。结论:MTL以NK/T细胞淋巴瘤为多见,EBV感染与MTL关系密切,EBV感染率与MTL的免疫表型有关,EBV感染在MTL的发生发展中可能起重要作用。     

结外鼻型NK／T细胞淋巴瘤

目的探讨结外鼻型NK／T细胞淋巴瘤临床病理特征。方法回顾性分析23例ENKL的临床表现、病理组织学特点，采用免疫组化SP法检测LCA、CD3、UCHL1、CD20、CD79a、CD56、TIA-1、GranzymeB、perforin，原位杂交方法检测EBER在ENKL中的表达情况。结果23例ENKL有特征性临床、病理学改变，CD3、CD56、TIA-1、GranzymeB、perforin及EBER阳性表达率达100％。结论ENKL根据典型的临床表现、病理形态学改变、免疫表型特点及EBER原位杂交阳性能准确诊断。     

Skp2在鼻型NK/T细胞淋巴瘤中的表达及临床意义

 目的 探讨Skp2与鼻型NK/T细胞淋巴瘤的预后及其他临床特点之间的关系。方法 收集95例鼻型NK/T细胞淋巴瘤患者临床病理学资料,用免疫组化方法检测肿瘤石蜡包埋标本的EB病毒编码RNA (EBV encoded RNA,EBER)、Skp2及Ki-67的表达情况,将Skp2阳性细胞比率超过50%的病例计入高表达组,低于50%的计入低表达组,分析患者的预后、EBER表达状态与Skp2、Ki 67表达率之间的关系。结果 在Skp2高表达组,中位生存期为20.54个月(95%CI:18.49-22.59),1年总体生存率为76%;在Skp2低表达组,中位生存期为17.54个月(95%CI:20.31 22.24),1年总体生存率为71%;在Skp2阴性组,中位生存期为个21.71个月(95%CI:11.15-16.18),1年总体生存率为91%。生存分析显示,Skp2高表达组与Skp2阴性组间差异具有统计学意义(P=0.035)。结论 Skp2的高表达可能是鼻腔NK/T细胞淋巴瘤预后的不良因素。