It has been found that efficient screening for a compound having anticancer activity can be achieved by selecting a compound having activity to induce alternative autophagy using, as an index, formation of fluorescent bright spots due to aggregation of a lysosomal protein to which a fluorescent protein is attached in cells expressing the lysosomal protein. In addition, it has been found that a benzothiophene compound represented by the following general formula (1) has alternative autophagy-inducing activity and anticancer activity:
研究发现,以表达溶酶体蛋白的细胞中附着荧光蛋白的溶酶体蛋白聚集形成荧光亮点为指标,选择具有诱导替代自噬活性的化合物,可以有效筛选出具有抗癌活性的化合物。此外,还发现由以下通式(1)代表的
苯并噻吩化合物具有替代自噬诱导活性和抗癌活性: