ArticleCell communication and signaling : CCS2025
IGF2BP3 promotes autophagy-mediated TNBC metastasis via m6A-dependent, cap-independent c-Met translation.
Article in Cell communication and signaling : CCS, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed.
- HECTD1 Directs HIF-1α to Facilitate Intestinal Inflammation and Carcinogenesis via Promoting Th17 Differentiation and Glycolysis.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Article
- Combinatorial inhibition of IGF2BP3-regulated receptor tyrosine kinases offers a new therapeutic strategy for triple-negative breast cancer.Journal of experimental & clinical cancer research : CR · 2026Article
- Epitranscriptomic control of cancer hallmarks: Functions, mechanisms, and therapeutics of RNA modifications.Cancer cell · 2026Review
- The Crosstalk Between Epithelial-Mesenchymal Transition and Anoikis Resistance: A New Perspective of Traditional Chinese Medicine to Prevent Tumor Metastasis.Drug design, development and therapy · 2026Review
- IGF2BP3 redirects glycolytic flux to promote one-carbon metabolism and RNA methylation.Cell reports · 2025Article
- The single-cell atlas of colorectal cancer reveals cellular heterogeneity and key molecular features of the tumor immune microenvironment.Cancer immunology, immunotherapy : CII · 2025Article
- Mechanisms of circular RNAs in diabetic cardiomyopathy: biological characteristics and clinical prospects.Frontiers in genetics · 2025Review
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Authors and funding
10 authors.
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Abstract
backgroundMetastatic tumors pose clinical treatment challenges due to their high adaptability to diverse environments. The cooperation of epigenetic modifications and metabolic adaptations enables tumor cells to dynamically adjust for survival in variable environments, which is crucial for tumor metastasis and worth exploring in depth.
methodsRNA immunoprecipitation sequencing, transmission electron microscopy photograph and GFP-mCherry-LC3 fluorescence imaging were employed to reveal the role of insulin-like growth factor 2 mRNA-binding protein 3 (IGF2BP3) in triple-negative breast cancer (TNBC) cells. Then, in the presence of rapamycin, further experiments showed that IGF2BP3's role in TNBC metastasis was autophagy-mediated. Methylated RNA immunoprecipitation sequencing, luciferase assays and co-immunoprecipitation mass spectrometry showed that IGF2BP3 promoted mRNA translation initiation in an N6-methyladenosine (m6A)-dependent manner.
resultsWe found that IGF2BP3 could link epigenetic modification and metabolic adaptation to promote autophagy-mediated TNBC metastasis. As an m6A binding protein that is specifically highly expressed in TNBC, IGF2BP3 could bind to the m6A motif of c-Met mRNA, regulating autophagy-mediated epithelial-to-mesenchymal transition via the c-Met/PI3K/AKT/mTOR pathway. Moreover, IGF2BP3 recruited eIF4G2 as a collaborator, promoting c-Met protein expression by facilitating m6A-dependent and cap-independent mRNA translation initiation, rather than affecting mRNA stability.
conclusionsOur study expands the understanding of IGF2BP3's role in TNBC metastasis by establishing its function in regulating autophagy. Notably, IGF2BP3 could bind to the m6A motif on the 5' and 3' untranslated regions (UTRs) of c-Met mRNA to facilitate its translation in a cap-independent manner.
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