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科研人员发现治疗乳腺癌潜在新药

2017-08-29 09:39:44   中国青年网

本报讯(记者 季征) 近日,中国科学院昆明动物研究所肿瘤生物学学科组陈策实团队与美国德克萨斯大学、南方医科大学附属上海奉贤区中心医院开展合作研究,发现小分子化合物YD277可明显抑制三阴性乳腺癌细胞的生长,诱导癌细胞凋亡。该研究成果在线发表在国际学术期刊《诊断治疗》上。

乳腺癌是一种常见的女性恶性肿瘤,严重危害着女性身心健康。其中三阴性乳腺癌由于缺乏有效的治疗靶点,患者在传统的手术、化疗、放疗后治疗效果不佳,易出现复发和转移。前期大量研究发现转录因子KLF5是三阴性乳腺癌一个有效的治疗靶点,对此研究人员以在大肠癌中能够抑制KLF5的小分子化合物ML264为先导化合物,设计合成多个新型衍生物。通过筛选这些衍生物发现YD277这一化合物能够有效抑制三阴性乳腺癌细胞的体外存活,显著抑制三阴性乳腺癌细胞增殖,将细胞周期阻滞在G1/S期并诱导细胞发生凋亡。在动物体内实验中,YD277能有效抑制免疫缺陷小鼠乳腺癌移植瘤的生长,无明显毒副作用。

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