Gao Jiale, Yao Mingjiang, Chang Dennis, Liu Jianxun
Beijing Key Laboratory of Pharmacology of Chinese Materia Medica, Institute of Basic Medical Sciences of Xiyuan Hospital, China Academy of Chinese Medical Sciences, China (J.G., M.Y., J.L.).
NICM Health Research Institute, Western Sydney University, Penrith, Australia (D.C.).
Stroke. 2023 Jan;54(1):279-285. doi: 10.1161/STROKEAHA.122.040376. Epub 2022 Nov 2.
Ischemic stroke remains a leading cause of morbidity and disability around the world. The sequelae of serious neurological damage are irreversible due to body's own limited repair capacity. However, endogenous neurogenesis induced by cerebral ischemia plays a critical role in the repair and regeneration of impaired neural cells after ischemic brain injury. mTOR (mammalian target of rapamycin) kinase has been suggested to regulate neural stem cells ability to self-renew and differentiate into proliferative daughter cells, thus leading to improved cell growth, proliferation, and survival. In this review, we summarized the current evidence to support that mTOR signaling pathways may enhance neurogenesis, angiogenesis, and synaptic plasticity following cerebral ischemia, which could highlight the potential of mTOR to be a viable therapeutic target for the treatment of ischemic brain injury.
缺血性中风仍然是全球发病和致残的主要原因。由于人体自身修复能力有限,严重神经损伤的后遗症是不可逆的。然而,脑缺血诱导的内源性神经发生在缺血性脑损伤后受损神经细胞的修复和再生中起着关键作用。已有研究表明,雷帕霉素靶蛋白(mTOR)激酶可调节神经干细胞自我更新以及分化为增殖性子代细胞的能力,从而促进细胞生长、增殖和存活。在本综述中,我们总结了当前的证据,以支持mTOR信号通路可能增强脑缺血后的神经发生、血管生成和突触可塑性,这可能凸显了mTOR作为治疗缺血性脑损伤可行治疗靶点的潜力。
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