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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.<\/jats:p>","DOI":"10.1038\/s41419-024-07297-y","type":"journal-article","created":{"date-parts":[[2024,12,18]],"date-time":"2024-12-18T12:51:52Z","timestamp":1734526312000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":25,"title":["Exosomal miR-320d promotes angiogenesis and colorectal cancer metastasis via targeting GNAI1 to affect the JAK2\/STAT3 signaling pathway"],"prefix":"10.1038","volume":"15","author":[{"given":"Yawen","family":"Wu","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jie","family":"Zhang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Guanghao","family":"Li","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Li","family":"Wang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yajing","family":"Zhao","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Baibing","family":"Zheng","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Fanfeng","family":"Lin","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4715-136X","authenticated-orcid":false,"given":"Li","family":"Xie","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2024,12,18]]},"reference":[{"key":"7297_CR1","doi-asserted-by":"publisher","first-page":"209","DOI":"10.3322\/caac.21660","volume":"71","author":"H Sung","year":"2021","unstructured":"Sung H, Ferlay J, Siegel RL, Laversanne M, Soerjomataram I, Jemal A, et al. 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Informed consent was obtained from their families. All procedures were conducted in accordance with the Declaration of Helsinki.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Ethics approval and consent to participate"}}],"article-number":"913"}}