肿瘤淋巴管形成与淋巴转移研究进展

Researching Progress of Tumor Lymphangiogenesis and Lymphatic Metastasis

目的介绍肿瘤淋巴管的特点以及促进和抑制肿瘤淋巴管形成的基础、动物实验及临床研究进展。方法对淋巴管的结构特征、淋巴管内皮分子标记物、肿瘤淋巴管的起源、认识进展、形成的分子机理及调控因素、肿瘤淋巴管形成与肿瘤淋巴转移的关系、以及近年来抗肿瘤淋巴管形成治疗实践及存在的问题进行综述和分析。结果在肿瘤形成、发展的同时伴有淋巴管增生,增生的肿瘤淋巴管及其结构特点有利于肿瘤的淋巴转移,近年来抗肿瘤淋巴管增生以及抑制肿瘤淋巴转移的动物实验取得了一定成就,但还存在不少问题。结论肿瘤的淋巴管形成与肿瘤的淋巴转移和预后明显相关,抗肿瘤淋巴管生成有可能成为肿瘤治疗又一新兴途径。

Objective To understand the features of lymphatic vessel, and to summarize the foundation and mechanism of the promotion and inhibition of tumor lymphangiogenesis recorded on the current studies of animal experiments and clinical researches. Methods The related literatures of the structural features of lymphatic vessel, lymphatic endothelial molecular markers, the origin of lymphatic tumors, the molecular mechanisms and regulatory factors were reviewed, and the relationship between tumor lymphangiogenesis and lymphatic metastasis, the treatment targeting at the formation of the anti-tumor lymphatic vessel and its existing problems were also analyzed. Results Hyperplasia of lymphatic vessels occurred during the process of tumor formation and progression. The structural features of the lymphatic vessels in the tumor were conducive to tumor lymphatic metastasis. In recent years, methods of anti-lymphangiogenesis and inhibition of tumor lymphatic metastasis had achieved considerable success in animal experiments. However, there were still a lot of problems need to be solved. Conclusion Tumor lymphangio- genesis has a significantly positive correlation between tumor lymphatic metastasis and patients＇ prognosis, which may indicate that treatment against the formation of tumor lymphatic vessel maybe effective.