Background/aim: Androgen receptor plays a key role in prostate cancer development and is a causative agent of its radio-resistance. The present study investigated the potential radio-sensitizing effect of enzalutamide, a second-generation anti-androgen, in human prostate cancer cells.
Materials And Methods: The radio-sensitizing effect of enzalutamide was assessed in the androgen-dependent LNCaP cells and the androgen-independent PC3 cells by clonogenic assay and γ-H2AX assay.
Results: Enzalutamide-treated LNCaP cells showed a significant decrease of cell survival at all radiation doses tested. An increased number of γ-H2AX-positive nuclei was observed, suggesting a possible impairment of the DNA repair machinery. Conversely, enzalutamide did not exhibit a significant radio-sensitizing effect on PC3 cells.
Conclusion: The combination of enzalutamide with ionizing radiation significantly improves radio-sensitivity of hormone-dependent LNCaP cells. Translated in the clinical practice, our results may help to find additional strategies to improve effectiveness of radiotherapy.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.21873/anticanres.12619 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
MiRNAs and tempol therapeutic potential in prostate cancer: a preclinical approach.
J Mol Histol
January 2025
Department of Structural and Functional Biology, University of Campinas (UNICAMP), Campinas, SP, Brazil.
This study investigated tempol action on genes and miRNAs related to NFκB pathway in androgen dependent or independent cell lines and in TRAMP model in the early and late-stages of cancer progression. A bioinformatic search was conducted to select the miRNAs to be measured based on the genes of interest from NFκB pathway. The miR-let-7c-5p, miR-26a-5p and miR-155-5p and five target genes (BCL2, BCL2L1, RELA, TNF, PTGS2) were chosen for RT-PCR and gene enrichment analyses.
View Article and Find Full Text PDFSynergistic combination therapy with ONC201 or ONC206, and enzalutamide or darolutamide in preclinical studies of castration-resistant prostate cancer.
Am J Cancer Res
December 2024
Laboratory of Translational Oncology and Experimental Cancer Therapeutics, The Warren Alpert Medical School, Brown University Providence, RI 02903, USA.
Androgen receptor (AR) signaling is a target in prostate cancer therapy and can be treated with non-steroidal anti-androgens (NSAA) including enzalutamide, and apalutamide for patients with advanced disease. Metastatic castration-resistant prostate cancer (mCPRC) develop resistance becomes refractory to therapy limiting patient overall survival. Darolutamide is a novel next-generation androgen receptor-signaling inhibitor that is FDA approved for non-metastatic castration resistant prostate cancer (nmCRPC).
View Article and Find Full Text PDFGold Nanoparticle Inhibits the Tumor-Associated Macrophage M2 Polarization by Inhibiting mA Methylation-Dependent ATG5/Autophagy in Prostate Cancer.
Anal Cell Pathol (Amst)
January 2025
Department of Urology, The First Hospital of Jilin University, Changchun, China.
This study aims to study how gold nanoparticles (AuNPs) function in the recruitment and polarization of tumor-associated macrophages (TAMs) in hormone-sensitive prostate cancer (HSPC) and castration-resistant prostate cancer (CRPC). Phorbol ester (PMA)-treated THP-1 cells were cocultured with LNCaP or PC3 cells to simulate TAMs. Macrophage M2 polarization levels were detected using flow cytometry and M2 marker determination.
View Article and Find Full Text PDFCharacterisation of Castration-Resistant Cell-Derived Exosomes and Their Effect on the Metastatic Phenotype.
Cancers (Basel)
January 2025
Unidad de Bioquímica y Biología Molecular, Departamento de Biología de Sistemas, Campus Científico-Tecnológico, Universidad de Alcalá, 28805 Alcalá de Henares, Spain.
Background/objectives: Prostate cancer (PCa) is characterised by its progression to a metastatic and castration-resistant phase. Prostate tumour cells release small extracellular vesicles or exosomes which are taken up by target cells and can potentially facilitate tumour growth and metastasis. The present work studies the effect of exosomes from cell lines that are representative of the different stages of the disease on the tumoral phenotype of PC3 cells.
View Article and Find Full Text PDFDRG2 levels in prostate cancer cell lines predict response to PARP inhibitor during docetaxel treatment.
Investig Clin Urol
January 2025
Basic-Clinic Convergence Research Institute, University of Ulsan, Ulsan, Korea.
Purpose: Developmentally regulated GTP-binding protein 2 (DRG2) regulates microtubule dynamics and G2/M arrest during docetaxel treatment. Poly ADP-ribose polymerase (PARP) acts as an important repair system for DNA damage caused by docetaxel treatment. This study investigated whether DRG2 expression affects response to PARP inhibitors (olaparib) using prostate cancer cell lines PC3, DU145, LNCaP-FGC, and LNCaP-LN3.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!