【摘要】 目的:运用组织芯片及常规病理切片检测活化的细胞毒性细胞在各型淋巴瘤中的表达分布情况,为临床治疗和判断预后提供依据。方法:运用免疫组化方法检测60份淋巴瘤标本制成的组织芯片中穿孔素、颗粒酶B的表达和分布情况,同时选择10份鼻自然杀伤细胞(NK)/T细胞淋巴瘤常规标本与组织芯片进行比较研究,10份淋巴组织反应性增生标本作为对照。结果:在60份淋巴瘤组织芯片中,发生在淋巴结内者48份,淋巴结外者12份。B细胞淋巴瘤42份,T细胞淋巴瘤16份(外周T细胞淋巴瘤10份、NK/T细胞淋巴瘤2份、T淋巴母细胞瘤2份及间变性大细胞淋巴瘤2份),2份霍奇金淋巴瘤。42份B细胞淋巴瘤的瘤细胞均不表达穿孔素和颗粒酶B。10份外周T细胞淋巴瘤中8份表达穿孔素,9份表达颗粒酶B,阳性表达细胞均为非肿瘤细胞。芯片中的2份和常规10份鼻NK/T细胞淋巴瘤中均见穿孔素和颗粒酶B过度表达。T、B细胞淋巴瘤与NK/T细胞淋巴瘤比较有显著性差异(P<0.01)。结论:穿孔素和颗粒酶B是鉴定活化的细胞毒性细胞的免疫标志物,可作为NK/T细胞淋巴瘤的诊断性标志物;其在T细胞淋巴瘤中的表达反映了机体的抗肿瘤免疫反应机制。组织芯片技术具有高信息量、简捷、高效、实验误差小、重复性好等优点,可作为研究淋巴瘤的有用工具。更多还原

【Abstract】 Objective: To detect the expression and distribution of activated cytotoxic cells in types of lymphoma with tissue microarray,and provide evidences for clinical treatment and prognosis. Methods: Immunohistochemical staining by S-P technique was used for detecting the expression and distribution of perforin and granzyme B in lymphoma tissue microarray,composed of 60 samples of lymphoma tissue.10 NK/T-cell lymphoma routine sections were used for relative research,and 10 reactive hyperplasia were used for comparison. Results: In the tissue microarray,samples originated from intranode and extranode were 48 and 12,respectively;consisting of 42 B-cell lymphoma,16 T-cell lymphoma(10 PTCLs,2 NK/T-cell lymphomas,2 lymphoblastic T-cell lymphomas,2 anaplastic large cell lymphomas),2 Hodgkin’s disease.42 samples of B-cell lymphoma cells were negative in perforin and granzyme B.In 10 samples of peripheral T-cell lymphoma,perforin and granzyme B positive were 8 and 9,respectively,but the positive cells were no tumor cells.In 12 samples of NK/Tcell lymphoma(2 in the tissue microarray,10 routine sections),both perforin and granzyme B were strongly positive.B-cell lymphoma,T-cell lymphoma and NK/T-cell lymphoma differed significantly(P<0.01). Conclusion: Perforin and granzyme B were immunity markers for the identification of activated cytotoxic cells,which also could be used as diagnostic markers of NK/T-cell lymphoma.Their expression in B-cell lymphoma reflected the anti-tumor immunologic reaction of the host.Tissue microarray technology was a high-throughput,convenient,effective tool for lymphoma research,for it brings small experiment error,and the result could be well replicated.更多还原