Metformin may induce ferroptosis by inhibiting autophagy via lncRNA H19 in breast cancer.

Metformin may induce ferroptosis by inhibiting autophagy via lncRNA H19 in breast cancer.
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二甲双胍可能通过lncRNA H19抑制乳腺癌细胞自噬从而诱导铁下垂。

DOI:
10.1002/2211-5463.13314
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发表时间:
2022-01
期刊:
影响因子:
2.6
通讯作者:
Yang J
Yang J
中科院分区:
生物学4区
文献类型:
--
作者:
Chen J;Qin C;Zhou Y;Chen Y;Mao M;Yang J

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自噬和铁死亡是近年来生物医学研究的主要焦点。阐明它们内在的分子关系对于癌症的预防和治疗非常重要。二甲双胍可以直接抑制肿瘤发生,尽管其机制尚不完全清楚。在这里,我们证明二甲双胍和 lncRNA-H19 可以调节自噬和铁死亡。自噬诱导剂和 H19 可以逆转脂质活性氧的产生以及二甲双胍诱导的自噬抑制。目前的研究表明,二甲双胍可能通过 H19 抑制自噬来诱导铁死亡,这一发现可能有助于开发治疗乳腺癌的新疗法。目前的研究表明,二甲双胍可以抑制自噬并诱导铁死亡,而这种情况可以被 H19 逆转。此外,敲低 H19 诱导的铁死亡可以通过诱导自噬来逆转。这些结果提示二甲双胍可能通过H19抑制自噬而诱导铁死亡,这进一步凸显了H19在二甲双胍抗癌作用中的作用。
Autophagy and ferroptosis have been major foci of biomedical research in recent years. Elucidation of their intrinsic molecular relationships is important for cancer prevention and treatment. Metformin can directly inhibit tumorigenesis, although the mechanism responsible for this is not fully understood. Here, we demonstrate that metformin and lncRNA‐H19 can regulate both autophagy and ferroptosis. Autophagy inducers and H19 can reverse the production of lipid reactive oxygen species and the inhibition of autophagy induced by metformin. The present study suggests that metformin may induce ferroptosis by inhibiting autophagy via H19, and this discovery may facilitate the development of novel therapies for the treatment of breast cancer. The present study demonstrates that metformin can inhibit autophagy and induce ferroptosis, and this can be reversed by H19. Furthermore, the induction of ferroptosis by knockdown of H19 can be reversed by inducing autophagy. These results imply that metformin may induce ferroptosis by inhibiting autophagy through H19, which further highlights the role of H19 in the anticancer effect of metformin.
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