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The cytotoxic and proapoptotic activities of hypnophilin are associated with calcium signaling in UACC-62 cells

机译:Hypnophilin的细胞毒性和促凋亡活性与UACC-62细胞中的钙信号相关有关

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摘要

Hypnophilin (HNP) is a sesquiterpene that is isolated from Lentinus cf. strigosus and has cytotoxic activities. Here, we studied the calcium signaling and cytotoxic effects of HNP in UACC-62 cells, a human skin melanoma cell line. HNP was able to increase the intracellular calcium concentration in UACC-62 cells, which was blocked in cells stimulated in Ca2+-free media. HNP treatment with BAPTA-AM, an intracellular Ca2+ chelator, caused an increase in calcium signals. HNP showed cytotoxicity against UACC-62 cells in which it induced DNA fragmentation and morphological alterations, including changes in the nuclear chromatin profile and increased cytoplasmatic vacuolization, but it had no effect on the plasma membrane integrity. These data suggest that cytotoxicity in UACC-62 cells, after treatment with HNP, is associated with Ca2+ influx. Together, these findings suggest that HNP is a relevant tool for the further investigation of new anticancer approaches.
机译:Hymnophilin(HNP)是一种从Lentinus CF分离的倍二萜。 Strigosus和细胞毒性活动。 在这里,我们研究了HNP在UACC-62细胞中HNP的钙信号传导和细胞毒性作用,是人体皮肤瘤细胞系。 HNP能够增加UACC-62细胞中的细胞内钙浓度,其在Ca2 + -Free介质中刺激的细胞中被封闭。 HNP处理用Bapta-AM,细胞内Ca2 +螯合剂,导致钙信号增加。 HNP向UACC-62细胞显示细胞毒性,其中它诱导DNA碎片和形态改变,包括核染色质谱的变化和增加的细胞形态真空,但它对血浆膜完整性没有影响。 这些数据表明,在用HNP处理后UACC-62细胞中的细胞毒性与Ca2 +流入相关。 这些调查结果表明,HNP是进一步调查新的抗癌方法的相关工具。

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