【摘要】 目的　探讨喉癌癌细胞间浸润树突状细胞在局部抗肿瘤免疫反应中的作用及其与局部淋巴结转移的关系。方法　采用免疫组织化学方法 ,以S 10 0蛋白抗体标记 2 3例喉鳞状细胞癌组织中树突状细胞 ,观察癌细胞间树突状细胞密度与淋巴结转移及其与癌周淋巴细胞反应的关系。结果喉癌无淋巴结转移患者癌细胞间树突状细胞密度显著高于淋巴结转移患者 (P <0 .0 1)。癌周淋巴细胞反应强阳性患者喉癌细胞间树突状细胞浸润密度高于癌周淋巴细胞反应中、弱阳性合并组患者 (P<0 .0 5 )。结论　喉癌细胞间的树突状细胞在喉癌局部抗肿瘤反应中起重要作用。喉癌细胞间树突状细胞浸润密度越高 ,局部淋巴结转移越少 ,癌周淋巴细胞反应越强。定量检测喉癌细胞间树突状细胞可作为判断预后的指标之一更多还原

【Abstract】 Objective To study the role and the clinical significance of dendritic cell infiltration against tumor cells in patients with laryngeal squamous cell carcinoma. Methods Immunohistochemical method using S 100 protein antibody was employed to detect dendritic cells (DC) on parafin embedded tissue sections from 23 patients with laryngeal squamous cell carcinomas. The relationships among the density of dendritic cell infiltration in laryngeal carcinomas and cervical lymphatic metastasis, pericancerous lymphocytic reaction and other clinicopathologic parameters were observed. Results The numbers of dendritic cells infiltrating among laryngeal carcinoma cells in patients with no cervical lymph metastasis was significantly larger than those with cervical lymphatic metastasis ( t =4.889, P <0.01). Significant increase DC infiltration among laryngeal carcinoma cells was found in the group with intensively positive reaction of pericancerous lymphocyte than in the medium and weakly positive groups. The number of infiltrating dendritic cells in patients who had survived more than 5 years was significantly larger than those survived less than 5 years ( t =4.423, P <0.01). The numbers of the infiltrating dendritic cells in patients with well differentiated squamous cell carcinoma and poorly differentiated squamous cells carcinoma were 2.2±1.07 and 14.6±7.14 respectively, which were significantly different ( q =4.532, P <0.05). Conclusion The study showed that DC infiltration among laryngeal squamous carcinoma cells played an important role in the host immune reaction against tumor. It indicated that when the density of infiltrating DC is higher, the patients had less chance of cervical lymph metastasis and may have a longer survival time. There was a coordinative effect between DC infiltration in tumor cells and pericancerous lymphocyte reaction. Thus, the DC infiltration among laryngeal squamous cells could be used as an index of prognosis.更多还原