Ning Wenlong, Li Shuhua, Yang Weiguang, Yang Bo, Xin Chuanyou, Ping Xin, Huang Chuanqi, Gu Yan, Guo Longzhe
Department of Emergency, the First Hospital of Qiqihar, Qiqihar 161005, Heilongjiang, China; Department of Emergency, Affiliated Qiqihar Hospital, Southern Medical University, Qiqihar 161000, Heilongjiang, China.
Department of Emergency, the First Hospital of Qiqihar, Qiqihar 161005, Heilongjiang, China; Department of Traditional Chinese Medicine, the First Hospital of Qiqihar, Qiqihar 161005, Heilongjiang, China; Department of Traditional Chinese Medicine, Affiliated Qiqihar Hospital, Southern Medical University, Qiqihar, Heilongjiang, China.
Cell Signal. 2021 Jan;77:109812. doi: 10.1016/j.cellsig.2020.109812. Epub 2020 Oct 24.
It has been widely reported that exosomes derived from mesenchymal stem cells (MSCs) have a protective effect on myocardial infarction (MI). However, the specific molecules which play a damaging role in MSCs shuttled miRNAs are much less explored. MiRNA-153-3p (miR-153-3p) is a vital miRNA which has been proved to modulate cell proliferation, apoptosis, angiogenesis, peritoneal fibrosis and aortic calcification. Here, we aim to study the effect and mechanism of miR-153-3p in MSC-derived exosomes on hypoxia-induced myocardial and microvascular damage. The exosomes of MSCs were isolated and identified, and the MSCs-exosomes with low expression of miR-153-3p (exo-miR-153-3p) were constructed to interfere with the endothelial cells and cardiomyocytes in the oxygen-glucose deprivation (OGD) model. The viability, apoptosis, angiogenesis of endothelial cells and cardiomyocytes were determined. Additionally, ANGPT1/VEGF/VEGFR2/PI3K/Akt/eNOS pathway was detected by ELISA and/or western blot. The results illustrated that exo-miR-153-3p significantly reduced the apoptosis of endothelial cells and cardiomyocytes and promoted their viability. Meanwhile, exo-miR-153-3p can promote the angiogenesis of endothelial cells. Mechanistically, miR-153-3p regulates the VEGF/VEGFR2/PI3K/Akt/eNOS pathways by targeting ANGPT1. Intervention with VEGFR2 inhibitor (SU1498, 1 μM) remarkably reversed the protective effect of exo-miR-153-3p in vascular endothelial cells and cardiomyocytes treated by OGD. Collectively, MSCs-derived exosomes with low-expressed miR-153-3p notably promotes the activation of ANGPT1 and the VEGF/VEGFR2 /PI3K/Akt/eNOS pathways, thereby preventing the damages endothelial cells and cardiomyocytes against hypoxia.
已有广泛报道称,间充质干细胞(MSCs)来源的外泌体对心肌梗死(MI)具有保护作用。然而,在MSCs穿梭的miRNAs中起破坏作用的具体分子却鲜有研究。MiRNA-153-3p(miR-153-3p)是一种重要的miRNA,已被证明可调节细胞增殖、凋亡、血管生成、腹膜纤维化和主动脉钙化。在此,我们旨在研究MSCs来源外泌体中的miR-153-3p对缺氧诱导的心肌和微血管损伤的作用及机制。分离并鉴定了MSCs的外泌体,并构建了低表达miR-153-3p的MSCs-外泌体(exo-miR-153-3p),以干预氧糖剥夺(OGD)模型中的内皮细胞和心肌细胞。测定了内皮细胞和心肌细胞的活力、凋亡和血管生成情况。此外,通过ELISA和/或蛋白质免疫印迹法检测了ANGPT1/VEGF/VEGFR2/PI3K/Akt/eNOS通路。结果表明,exo-miR-153-3p显著降低了内皮细胞和心肌细胞的凋亡并促进了它们的活力。同时,exo-miR-153-3p可促进内皮细胞的血管生成。机制上,miR-153-3p通过靶向ANGPT1调节VEGF/VEGFR2/PI3K/Akt/eNOS通路。用VEGFR2抑制剂(SU1498,1 μM)干预可显著逆转exo-miR-153-3p对OGD处理的血管内皮细胞和心肌细胞的保护作用。总的来说,低表达miR-153-3p的MSCs来源外泌体显著促进ANGPT1的激活以及VEGF/VEGFR2 /PI3K/Akt/eNOS通路的激活,从而防止内皮细胞和心肌细胞免受缺氧损伤。
Aging (Albany NY). 2021-10-4
Arterioscler Thromb Vasc Biol. 2018-10
Front Endocrinol (Lausanne). 2025-7-21
Am J Stem Cells. 2025-6-15
Stem Cell Res Ther. 2025-1-23
Histol Histopathol. 2025-7