近年研究发现 ,ω 3多不饱和脂肪酸能抑制肿瘤发生、侵袭和转移 ,增强肿瘤细胞对化疗药物的敏感性 ,延长肿瘤病人的生存时间 ,本文从生物膜构成、二十碳烷酸代谢、脂质过氧化反应、癌基因表达及肿瘤血管生成等方面对ω 3多不饱和脂肪酸的抗肿瘤机制进行阐述 Recent studies have found that ω 3 polyunsaturated fatty acids can inhibit tumor occurrence, invasion and metastasis, enhance the sensitivity of tumor cells to chemotherapeutic drugs and prolong the survival time of tumor patients. In this paper, biofilm composition, eicosanoid metabolism, lipid Peroxidation, oncogene expression and tumor angiogenesis and other aspects of the antitumor mechanism of ω 3 polyunsaturated fatty acids