{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,5]],"date-time":"2026-03-05T18:01:40Z","timestamp":1772733700521,"version":"3.50.1"},"reference-count":41,"publisher":"S. Karger AG","issue":"3","license":[{"start":{"date-parts":[[2025,5,26]],"date-time":"2025-05-26T00:00:00Z","timestamp":1748217600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"},{"start":{"date-parts":[[2025,5,26]],"date-time":"2025-05-26T00:00:00Z","timestamp":1748217600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Oncology"],"abstract":"<jats:p>&lt;p&gt;Introduction: MiRNAs play important roles in development of various cancers including gastric cancer. Exosomes are extracellular vesicles for translocating molecules. This study aimed to investigate the tumor suppressive roles of miR-379-5p in gastric cancer and to investigate the roles of exosomes in transporting miR-379-5p from intracellular to extracellular. Methods: Fifty-three pairs of gastric cancer and non-tumor tissue samples were collected. Five cell lines were applied. Functional assays including cell proliferation, cell migration and invasion, and cell adhesion assay were performed. Targets of miR-379-5p were screened and validated by Western blot. Expressions of endogenous miR-379-5p in gastric cancer cells and exosomal miR-379-5p in cell culture medium were evaluated by RT-qPCR. Medium of culturing AGS or BCG23 was applied for culturing MKN45 and HEK293T. Results: The results indicated that miR-379-5p was significantly downregulated in gastric cancer tissue samples and cell lines. Enforced expression of miR-379-5p inhibited gastric cancer cell proliferation, migration, and invasion, while miR-379-5p mimic enhanced cell adhesion to extracellular matrix. IGF1R was a potential target of miR-379-5p in gastric cancer. Expression of miR-379-5p was dramatically higher in exosomes in cell culture medium than its endogenous expression. Exosomes from cell culture medium of AGS or BCG23 could regulate endogenous expression of miR-379-5p in HEK293T cells. Conclusions: MiR-379-5p was significantly downregulated and it functioned as a tumor suppressor in gastric cancer. MiR-379-5p was highly expressed in exosomes of culture medium than its endogenous expression. MiR-379-5p could be translocated from cells into cell culture medium and entered certain cell types via exosomes. &lt;\/p&gt;<\/jats:p>","DOI":"10.1159\/000546620","type":"journal-article","created":{"date-parts":[[2025,5,26]],"date-time":"2025-05-26T12:02:04Z","timestamp":1748260924000},"page":"337-348","source":"Crossref","is-referenced-by-count":0,"title":["Endogenous and Extracellular Roles of a Tumor Suppressor miR-379-5p in Gastric Cancer"],"prefix":"10.1159","volume":"104","author":[{"given":"Michelle 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