ArticleDigestive diseases and sciences2025
LINC01614 Accelerates CRC Progression via STAT1/LINC01614/miR-4443/PFKFB3-Mediated Aerobic Glycolysis.
Article in Digestive diseases and sciences, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundColorectal cancer (CRC) is an aggressive malignancy among malignant tumours, with a high incidence globally. LINC01614, a long non-coding RNA, has been identified as an essential regulator in multiple cancer types. However, its biological functions and underlying molecular mechanisms in CRC remain largely unknown.
methodsIn this study, we employed RT-qPCR to assess the expression levels of LINC01614 in CRC samples. In vitro, glucose metabolism experiments were conducted to evaluate glucose metabolism in cells. The binding relationship between miR-4443, PFKFB3, and LINC01614 was confirmed through fluorescence reporter gene detection. The subcellular localization of LINC01614 in CRC cells was determined using FISH and subcellular fractionation experiments. Additionally, a mouse subcutaneous tumor model was established for in vivo experiments.
resultsOur findings reveal that LINC01614 is upregulated in CRC tissues. Silencing of LINC01614 suppresses the malignant behaviors of CRC cells, including cell proliferation, invasion, migration, and aerobic glycolysis. Furthermore, we discovered that LINC01614 promotes the expression of PFKFB3. Additional experiments demonstrated that LINC01614 binds to miR-4443, leading to the upregulation of PFKFB3 expression. Further experiments confirmed that the LINC01614/miR-4443/PFKFB3 axis promotes CRC cell malignancy by enhancing aerobic glycolysis. Additionally, we found that STAT1 promotes the transcription of LINC01614.
conclusionThese findings uncover a novel regulatory pathway wherein STAT1-induced LINC01614 enhances PFKFB3 expression by sponging miR-4443, thereby accelerating CRC development. This understanding may lead to novel therapeutic strategies for CRC treatment.
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