目的探讨肿瘤细胞的甲硫氨酸依赖性在提高肿瘤化疗疗效方面的作用及意义。

Objective To study the implication of tumor cells' methionine dependence in promoting the effects of chemotherapy.

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多种肿瘤细胞表现出对外源性甲硫氨酸的依赖，人们对于限制甲硫氨酸后肿瘤细胞生长受到抑制这一现象进行了很多的研究。

Many human cancer cell lines have absolute requirements for exogenous methionine, an essential amino acid. A number of researchers have attempted to exploit the methionine dependence of tumors.

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