ArticleCancer research communications2024
PELP1 Is a Novel Therapeutic Target in Hepatocellular Carcinoma.
Article in Cancer research communications, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- PELP1 expression is associated with disease progression in inflammation-driven oral cancer.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2026Article
- The PELP1 Pathway and Its Importance in Cancer Treatment.Biomolecules · 2025Review
- Lnc-EST885 promotes hepatocellular carcinoma metastasis through PI3K / AKT pathway by interaction with TRAF4.Translational oncology · 2025Article
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15 authors.
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Abstract
Hepatocellular carcinoma (HCC) is one of the leading causes of cancer-related deaths in the United States, with a median survival period of approximately 10 months. There is an urgent need for the development of effective targeted therapies for the treatment of HCC. Proline-, glutamic acid-, and leucine-rich protein 1 (PELP1) signaling is implicated in the progression of many cancers, although its specific contribution to the progression of HCC is not yet well understood. Analysis of The Cancer Genome Atlas HCC gene expression data sets and IHC analysis of HCC tissue microarray revealed that HCC tumors had elevated expression of PELP1 compared with normal tissues, and high expression of PELP1 is associated with unfavorable survival outcomes. Suppression of PELP1 expression using short hairpin RNA significantly reduced the cell viability, clonogenicity, and invasion of HCC cells. Importantly, SMIP34, a first-in-class small-molecule inhibitor targeting PELP1, effectively decreased the cell viability, clonogenic survival, and invasiveness of HCC cells. Gene expression analysis using RNA sequencing revealed that PELP1 knockdown cells exhibited a decrease in c-Myc, E2F, and other oncogenic pathways related to HCC. Mechanistic studies showed that SMIP34 treatment impaired the Rix complex, a critical component of ribosomal biogenesis, in HCC cells. Furthermore, the knockdown or pharmacologic inhibition of PELP1 significantly decelerated the HCC tumor growth in xenograft models. In summary, our study findings indicate that PELP1 could serve as a promising target for therapeutic intervention in HCC. SIGNIFICANCE: HCC is one of the leading causes of cancer fatalities in the United States. Effective targeted therapeutics for HCC are urgently needed. In this study, we show that PELP1 proto-oncogene is crucial to HCC progression and that PELP1 inhibition reduced HCC cell proliferation in vitro and in vivo. Our results imply that PELP1-targeted drugs like SMIP34 may be useful as new therapeutic agents for HCC treatment.
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