Exosomal miR-320d promotes angiogenesis and colorectal cancer metastasis via targeting GNAI1 to affect the JAK2/STAT3 signaling pathway.

IF 8.1 1区 生物学 Q1 CELL BIOLOGY
Yawen Wu, Jie Zhang, Guanghao Li, Li Wang, Yajing Zhao, Baibing Zheng, Fanfeng Lin, Li Xie
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引用次数: 0

Abstract

Colorectal cancer is a common malignant tumor, whose growth and metastasis are influenced by numerous factors. MicroRNAs have garnered increasing attention in recent years due to their involvement in tumor development. Exosomes are involved in intercellular signaling and influence tumor development by promoting tumor cell proliferation and metastasis through activation of angiogenesis and other mechanisms. This study aimed to investigate how the exosomes containing miR-320d from colorectal cancer (CRC) cells promote colorectal cancer metastasis by regulating angiogenesis. CRC-derived exosomes containing miR-320d can be transferred to vascular endothelial cells, facilitating their proliferation, invasion, migration, and angiogenesis. By targeting GNAI1, miR-320d in these exosomes reduces GNAI1 levels in endothelial cells, causing more JAK2/STAT3 activation and VEGFA production. This ultimately enhances the migration and angiogenic capacity of vascular endothelial cells. Moreover, CRC patients with high levels of miR-320d in their blood respond better to treatment with bevacizumab. In vivo experiments further proved the role of miR-320d from CRC exosomes in increasing tumor size, blood vessel formation, and the spread of cancer to the liver. In this study, we have demonstrated that exosomal miR-320d promotes cancer cell metastasis and enhances angiogenesis by downregulating GNAI1 expression and enhancing JAK2/STAT3.

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来源期刊
Cell Death & Disease
Cell Death & Disease CELL BIOLOGY-
CiteScore
15.10
自引率
2.20%
发文量
935
审稿时长
2 months
期刊介绍: Brought to readers by the editorial team of Cell Death & Differentiation, Cell Death & Disease is an online peer-reviewed journal specializing in translational cell death research. It covers a wide range of topics in experimental and internal medicine, including cancer, immunity, neuroscience, and now cancer metabolism. Cell Death & Disease seeks to encompass the breadth of translational implications of cell death, and topics of particular concentration will include, but are not limited to, the following: Experimental medicine Cancer Immunity Internal medicine Neuroscience Cancer metabolism
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