Evidence mapPaperPMID 41777648Full record

ArticleFrontiers in oncology2026

RPL28 mediates sorafenib resistance in hepatocellular carcinoma by downregulating CDC6 expression.

Yi Shi, Fangfang Chen, Yuanyuan Weng, Hang Zeng, Gang Chen

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Article in Frontiers in oncology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Not yet cited in PubMed.

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1 · What the graph read from it

What it found

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4 · The record

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5 · Who and what money

Authors and funding

5 authors.

Yi ShiDepartment of Molecular Pathology, Clinical Oncology School of Fujian Medical University, Fujian Cancer Hospital, Fuzhou, Fujian, China.
Fangfang ChenDepartment of Molecular Pathology, Clinical Oncology School of Fujian Medical University, Fujian Cancer Hospital, Fuzhou, Fujian, China.
Yuanyuan WengDepartment of Molecular Pathology, Clinical Oncology School of Fujian Medical University, Fujian Cancer Hospital, Fuzhou, Fujian, China.
Hang ZengDepartment of Molecular Pathology, Clinical Oncology School of Fujian Medical University, Fujian Cancer Hospital, Fuzhou, Fujian, China.
Gang ChenDepartment of Molecular Pathology, Clinical Oncology School of Fujian Medical University, Fujian Cancer Hospital, Fuzhou, Fujian, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Aim: Sorafenib is a milestone targeted therapy for advanced hepatocellular carcinoma (HCC), yet resistance to this agent severely limits its clinical efficacy. The molecular mechanisms underlying sorafenib resistance are incompletely understood. Ribosomal proteins (RPs) have been increasingly implicated in cancer progression and drug resistance, but the role and mechanism of ribosomal protein L28 (RPL28) in sorafenib resistance in HCC remains unexplored. Methods: We investigated the functional role of RPL28 in sorafenib-resistant HCC using HepG2 and HCCLM3 cell models. RPL28 was silenced by siRNA, and effects on cell proliferation, migration, and sorafenib sensitivity were assessed by CCK-8, migration assays, and IC Results: RPL28 expression was significantly reduced at both mRNA and protein levels in knockdown cells of sorafenib-resistant HepG2 and HCCLM3. RPL28 knockdown inhibited proliferation and migration in resistant HCC cells. Transcriptomic and proteomic analyses identified CDC6 as a key downstream target of RPL28. CDC6 expression was consistently decreased in RPL28 KD cells, while EGFR and TRAF6 remained unchanged. GO and KEGG pathway enrichment revealed that RPL28 modulates pathways involved in DNA replication, immune regulation, and metabolic adaptation. Notably, no significant changes were observed in MHC-I and PD-L1 expression following RPL28 knockdown. Conclusions: Our findings demonstrate that RPL28 contributes to sorafenib resistance in HCC by upregulating CDC6, contributing to tumor proliferation and drug resistance. The newly identified RPL28-CDC6 axis represents a novel mechanism of resistance and a potential therapeutic target to overcome treatment limitations in HCC.

Indexed as

CDC6hepatocellular carcinomaproteomeribosomal proteins L28 (RPL28)sorafenib resistancetranscriptome

Identifiers

PMID41777648
PMCPMC12951193

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.