ArticleCell division2025
METTL16/IGF2BP2 axis enhances malignant progression and DDP resistance through up-regulating COL4A1 by mediating the m6A methylation modification of LAMA4 in hepatocellular carcinoma.
Article in Cell division, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- RNA Regulatory Networks: Key Hubs in the Panorama of Cancer and Emerging Therapeutic Targets.MedComm · 2026Review
- Oxidative stress-driven epigenetic reprogramming of immune cells in COPD: from epitranscriptomic and metabolic crosstalk to treatable traits.Frontiers in immunology · 2026Review
- Recent advances in m6A RNA modification in hepatocellular carcinoma: from mechanisms to therapeutic potential.Frontiers in molecular biosciences · 2026Review
- FBXO2 promotes hepatocellular carcinoma progression and sorafenib resistance by targeting USP49 for proteasomal degradation.Frontiers in immunology · 2025Article
- METTL16 emerges as a pivotal epitranscriptomic regulator, linking RNA modification, tumor progression, and immune modulation.Frontiers in immunology · 2025Review
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2 authors.
Funding
Abstract
backgroundHepatocellular carcinoma (HCC) is the third most common malignant tumor after gastric cancer and esophageal cancer, which is a serious threat to human health. Methyltransferase-like protein 16 (METTL16) regulates the occurrence and development of various cancers, but its molecular mechanism in HCC has not been fully investigated.
methodsA series of databases were used to predict gene expression, methylation sites, correlation analysis, and protein interaction analysis. Gene expression levels were detected by quantitative real-time polymerase chain reaction (qRT-PCR), western blot, and immunohistochemistry (IHC). What's more, drug-resistant cell lines were established for drug resistance analysis. Cell proliferation was measured by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay and 5-ethynyl-2'-deoxyuridine (EdU) staining. Flow cytometry, transwell and wound healing assays were used for apoptosis, invasion and migration, respectively. In addition, the regulatory mechanism of METTL16 in HCC was investigated by methylated RNA immunoprecipitation (MeRIP), RNA immunoprecipitation (RIP) and co-immunoprecipitation (Co-IP). Finally, constructing subcutaneous transplanted tumor in nude mice confirmed the effect of METTL16 in vivo.
resultsMETTL16 was up-regulated in HCC drug-resistant tissues and cells. Knockdown of METTL16 inhibited Cisplatin (DDP) resistance, proliferation, invasion and migration of HCC cells, but promoted apoptosis. Besides, laminin subunit alpha 4 (LAMA4), which was overexpressed in HCC drug-resistant tissues and cells, was selected as the target of METTL16. Mechanistically, METTL16 and m6A reader insulin like growth factor 2 mRNA binding protein 2 (IGF2BP2) co-regulated the m6A modification and mRNA stability of LAMA4, and LAMA4 weakened the effects of METTL16 knockdown on HCC drug-resistance. Meanwhile, LAMA4 bound to collagen type IV alpha 1 chain (COL4A1) and facilitated DDP resistance and HCC progression via COL4A1. Similarly, in vivo, METTL16 induced tumor growth, as well as LAMA4 and COL4A1 expression, and increased DDP resistance.
conclusionMETTL16 and IGF2BP2 jointly mediated the m6A methylation modification of LAMA4, thereby promoting DDP resistance and malignant progression of HCC through regulation of COL4A1.
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