细胞凋亡是一种细胞主动性死亡，与组织自稳机制有关。近年来，细胞凋亡在肿瘤发生发展过程中的生物学作用得到普遍重视。研究表明，不仅肿瘤细胞凋亡可受抗癌化疗、放疗等多种因素和途径诱导产生，而且某些肿瘤基因或肿瘤抑制基因，如ｂｃｌ┐２，ｐ５３等对细胞凋亡起重要调控作用 Apoptosis is a type of cellular death that is actively related to tissue homeostasis. In recent years, the biological role of apoptosis in the development of tumors has received widespread attention. Studies have shown that not only tumor cell apoptosis can be induced by anti-cancer chemotherapy, radiotherapy and other factors and pathways, but also certain tumor genes or tumor suppressor genes, such as bcl┐2, p53, play an important role in regulating apoptosis.