Chinese Journal of Cancer Biotherapy, Volume. 32, Issue 7, 698(2025)

2',4'-dihydroxychalcone inhibits the proliferation and migration of colorectal cancer cells by regulating miR-7-5p-induced autophagy

SU Zhaoxia1, WANG Nanmiao1, CHEN Dan1, HAN Youyan1, BI Yao1, WANG Tong1, AN Renbo1,2, PIAO Yingshi1,3, REN Xiangshan1,3, and LI Wenjing1,4
Author Affiliations
  • 1Central Laboratory of Yanbian University Affiliated Hospital & Yanbian University State Key Laboratory of Tumor Biology & Yanbian University Key Laboratory of Natural Medicine Research in Changbai Mountain, Yanji 133002, Jilin, China
  • 2School of Pharmacy, Yanbian University, Yanji 133002, Jilin, China
  • 3Department of Pathology, College of Medicine, Yanbian University, Yanji 133002, Jilin, China
  • 4Department of Anesthesiology, Yanbian University Affiliated Hospital, Yanji 133002, Jilin, China
  • show less

    ObjectiveTo investigate the molecular mechanism by which 2',4'-dihydroxychalcone (D2) inhibits proliferation, migration, and epithelial-mesenchymal transition (EMT) in colorectal cancer cells through miR-7-5p-mediated autophagy.MethodsHuman colorectal cancer cell lines HCT-15 and SW620 were treated with D2 at concentrations of 0, 12.5, 25, and 50 μmol/L. Cell proliferation and clonogenic capacity were evaluated using MTT and colony formation assays. Cell migration was assessed by wound healing and Transwell assays. WB assay was used to detect the expression of EMT-related proteins, autophagy-related proteins, and key components of the PI3K/AKT/mTOR pathway. Autophagosome formation was visualized by immunofluorescence staining. TCGA database and KEGG pathway analyses were performed to evaluate miR-7-5p expression and its association with colorectal cancer. RT-qPCR was used to quantify miR-7-5p expression, and lentiviral transduction was employed to establish stable miR-7-5p knockdown or overexpression cell lines.ResultsD2 significantly inhibited colorectal cancer cell proliferation, migration, and EMT (P < 0.05 or P < 0.01). TCGA and KEGG analyses revealed that miR-7-5p expression was downregulated in colorectal cancer and closely associated with disease progression. D2 treatment (12.5, 25, and 50 μmol/L) significantly upregulated miR-7-5p expression in HCT-15 and SW620 cells (P < 0.01). At 25 μmol/L, D2 increased the expression of autophagy-related proteins (LC3 and p-ULK1) and inhibited the PI3K/AKT/mTOR signaling pathway (P < 0.05), accompanied by increased autophagosome formation (P < 0.01). In miR-7-5p-knockdown cells treated with D2, the levels of LC3 and p-ULK1 were significantly reduced compared to D2-only treated cells (P < 0.05 or P < 0.01).ConclusionD2 upregulates miR-7-5p to induce autophagy, thereby inhibiting colorectal cancer cell proliferation, migration, and EMT, possibly through suppression of the PI3K/AKT/mTOR signaling pathway.

    Tools

    Get Citation

    Copy Citation Text

    SU Zhaoxia, WANG Nanmiao, CHEN Dan, HAN Youyan, BI Yao, WANG Tong, AN Renbo, PIAO Yingshi, REN Xiangshan, LI Wenjing. 2',4'-dihydroxychalcone inhibits the proliferation and migration of colorectal cancer cells by regulating miR-7-5p-induced autophagy[J]. Chinese Journal of Cancer Biotherapy, 2025, 32(7): 698

    Download Citation

    EndNote(RIS)BibTexPlain Text
    Save article for my favorites
    Paper Information

    Category:

    Received: Jan. 18, 2025

    Accepted: Aug. 26, 2025

    Published Online: Aug. 26, 2025

    The Author Email:

    DOI:10.3872/j.issn.1007-385x.2025.07.004

    Topics