Anlotinib destabilizes PAX3-FOXO1 to induce rhabdomyosarcoma cell death via upregulating NEK2.
Biomed Pharmacother
; 177: 117126, 2024 Aug.
Article
in En
| MEDLINE
| ID: mdl-38996706
ABSTRACT
BACKGROUND:
Rhabdomyosarcoma (RMS) is one of the most common soft tissue sarcomas in children and adolescents, in which PAX3-FOXO1 fusion gene positive patients have very poor prognosis. PAX3-FOXO1 has been identified as an independent prognostic predictor in RMS, with no currently available targeted therapeutic intervention. The novel tyrosine kinase inhibitor anlotinib exhibits a wide range of anticancer effects in multiple types of cancers; however, there have been no relevant studies regarding its application in RMS. MATERIALS ANDMETHODS:
We investigated the effects of PAX3-FOXO1 on the therapeutic efficacy of anlotinib using the CCK-8 assay, flow cytometry, invasion assay, wound healing assay, western blotting, quantitative polymerase chain reaction(qPCR), and xenograft experiments. RNA-seq and co-immunoprecipitation assays were conducted to determine the specific mechanism by which anlotinib regulates PAX3-FOXO1 expression.RESULTS:
Anlotinib effectively inhibited RMS cell proliferation and promoted apoptosis and G2/M phase arrest while impeding tumor growth in vivo. Downregulation of PAX3-FOXO1 enhances the antitumor effects of anlotinib. Anlotinib upregulates protein kinase NEK2 and increases the degradation of PAX3-FOXO1 via the ubiquitin-proteasome pathway, leading to a reduction in PAX3-FOXO1 protein levels.CONCLUSION:
Anlotinib effectively inhibited the malignant progression of RMS and promoted degradation of the fusion protein PAX3-FOXO1. Anlotinib could be a targeted therapeutic approach to treat PAX3-FOXO1 fusion-positive RMS.Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Quinolines
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Rhabdomyosarcoma
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Oncogene Proteins, Fusion
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Up-Regulation
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Apoptosis
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Cell Proliferation
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NIMA-Related Kinases
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Indoles
Limits:
Animals
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Humans
Language:
En
Journal:
Biomed Pharmacother
Year:
2024
Type:
Article