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浅表性和浸润性膀胱癌微环境中树突状细胞的变化及意义
Authors
丘少鹏
毛晓鹏
王杜渐
黄桂晓
Publication date
1 January 2006
Publisher
Editorial Office of Journal of Sun Yat-sen University
Abstract
【目的】研究树突状细胞(Dc)在不同类型膀胱移行细胞癌及癌旁组织中的变化以及与肿瘤病理分级的关系,探讨恶性肿瘤免疫逃避的可能机制。【方法】将133例膀胱移行细胞癌病理标本按WHO标准进行病理分级,按1987年国际抗癌协会(UICC)标准进行临床分型(浅表和浸润),应用免疫组化法检测病理标本中Dc。【结果】133例标本中肿瘤Dc数目明显少于瘤旁组织(G1 16.85±1.1,G2 9.45±2.17,G3 2.99±1.19 vs G1 21.8±4.78,G2 21.71±4.72,G320.00±5.49,P〈0.01)并随肿瘤病理分级的增加而减少,相同病理分级浅表性膀胱癌实质内Dc数目(G2 10.79±1.69;G3 4.79±0.67)明显多于浸润性膀胱癌实质内Dc数目(G27.52±1.0;G3 2.46±0.66),其差别具有统计学意义(P〈0.01);肿瘤旁组织Dc数目在不同肿瘤病理分级、临床分型的标本中差别无统计学意义(P〉0.05)。【结论】Dc仅在机体有炎症或肿瘤时作为抗原递呈者出现;肿瘤内Dc数目的减少是恶性肿瘤逃避机体的免疫监视和排斥的一个可能机制;浸润性膀胱癌容易转移可能与瘤内Dc数目及活性过度下调和Dc过早凋亡有关
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Last time updated on 15/10/2024