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Current Research for Castration Resistance Prostate Cancer

A special issue of International Journal of Molecular Sciences (ISSN 1422-0067). This special issue belongs to the section "Molecular Oncology".

Deadline for manuscript submissions: closed (20 January 2025) | Viewed by 5097

Special Issue Editor


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Guest Editor
TRePCa, Université Paris Est Créteil, F-94010 Creteil, France
Interests: prostate cancer; CRPC; extracellular vesicles; tumoral heterogeneity; biomarkers; therapeutic resistance

Special Issue Information

Dear Colleagues,

Prostate cancer (CaP) is the second most common cancer in terms of incidence and the fifth most common cancer death in men worldwide. Treatment approaches and prognosis for CaP depend on its stage at diagnosis. Initially, CaP is treated with androgen deprivation therapy with a good initial response but followed by inevitable relapse. In recent years, new therapies based on inhibition of the androgen receptor pathway or taxanes have been developed, in particular to combat the phenomenon of castration resistance. However, the emergence of resistance clearly limits their benefits and their use. Not all mechanisms leading to castration resistance and treatment resistance in CaP have been elucidated. Similarly, these resistances demonstrate the potential need for the development of new therapies.

The Special Issue focuses on new advances in the mechanisms of castration resistance and therapeutic resistance in prostate cancer and in new treatments for CRPC.

Dr. Virginie Firlej
Guest Editor

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Keywords

  • prostate cancer
  • castration-resistant prostate cancer
  • therapy resistance
  • biomarkers
  • androgen receptor
  • new therapies
  • tumor microenvironment

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Published Papers (2 papers)

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Research

12 pages, 1255 KB  
Article
CD44 Methylation Levels in Androgen-Deprived Prostate Cancer: A Putative Epigenetic Modulator of Tumor Progression
by Virginia Valentini, Raffaella Santi, Valentina Silvestri, Calogero Saieva, Giandomenico Roviello, Andrea Amorosi, Eva Compérat, Laura Ottini and Gabriella Nesi
Int. J. Mol. Sci. 2025, 26(6), 2516; https://doi.org/10.3390/ijms26062516 - 11 Mar 2025
Viewed by 827
Abstract
Epigenetic changes have been reported to promote the development and progression of prostate cancer (PCa). Compared to normal prostate tissue, tumor samples from patients treated with androgen-deprivation therapy (ADT) show the hypermethylation of genes primarily implicated in PCa progression. A series of 90 [...] Read more.
Epigenetic changes have been reported to promote the development and progression of prostate cancer (PCa). Compared to normal prostate tissue, tumor samples from patients treated with androgen-deprivation therapy (ADT) show the hypermethylation of genes primarily implicated in PCa progression. A series of 90 radical prostatectomies was retrospectively analyzed. A total of 46 patients had undergone surgery alone (non-treated) and 44 had received ADT prior to surgery (treated). Promoter methylation analysis of the candidate genes possibly involved in PCa response to ADT (AR, ESR1, ESR2, APC, BCL2, CD44, CDH1, RASSF1, ZEB1) was conducted by pyrosequencing. The mRNA expression of differentially methylated genes was investigated by quantitative real-time PCR. Intratumoral microvessel density and ERG expression were also assessed using immunohistochemistry. A statistically significant difference in CD44 promoter methylation levels was found, with higher levels in the non-treated cases, which accordingly showed lower CD44 gene expression than the treated cases. Moreover, lower ESR1 methylation levels were associated with higher ERG expression, and the CD44 methylation levels were increased in ERG-overexpressing tumors, particularly in the treated cases. Our data suggest an interplay between ERG expression and the epigenetic modifications in key genes of prostate tumorigenesis, and that CD44 promoter methylation could serve as a promising molecular biomarker of PCa progression under androgen-deprived conditions. Full article
(This article belongs to the Special Issue Current Research for Castration Resistance Prostate Cancer)
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26 pages, 12954 KB  
Article
Dysbindin Domain-Containing 1 in Prostate Cancer: New Insights into Bioinformatic Validation of Molecular and Immunological Features
by Van Thi Ngoc Tram, Hoang Dang Khoa Ta, Gangga Anuraga, Phan Vu Thuy Dung, Do Thi Minh Xuan, Sanskriti Dey, Chih-Yang Wang and Yen-Nien Liu
Int. J. Mol. Sci. 2023, 24(15), 11930; https://doi.org/10.3390/ijms241511930 - 25 Jul 2023
Cited by 2 | Viewed by 3637
Abstract
Prostate cancer (PCa) is one of the most prevalent cancers in men, yet its pathogenic pathways remain poorly understood. Transcriptomics and high-throughput sequencing can help uncover cancer diagnostic targets and understand biological circuits. Using prostate adenocarcinoma (PRAD) datasets of various web-based applications (GEPIA, [...] Read more.
Prostate cancer (PCa) is one of the most prevalent cancers in men, yet its pathogenic pathways remain poorly understood. Transcriptomics and high-throughput sequencing can help uncover cancer diagnostic targets and understand biological circuits. Using prostate adenocarcinoma (PRAD) datasets of various web-based applications (GEPIA, UALCAN, cBioPortal, SR Plot, hTFtarget, Genome Browser, and MetaCore), we found that upregulated dysbindin domain-containing 1 (DBNDD1) expression in primary prostate tumors was strongly correlated with pathways involving the cell cycle, mitotic in KEGG, WIKI, and REACTOME database, and transcription factor-binding sites with the DBNDD1 gene in prostate samples. DBNDD1 gene expression was influenced by sample type, cancer stage, and promoter methylation levels of different cancers, such as PRAD, liver hepatocellular carcinoma (LIHC), and lung adenocarcinoma (LUAD). Regulation of glycogen synthase kinase (GSK)-3β in bipolar disorder and ATP/ITP/GTP/XTP/TTP/CTP/UTP metabolic pathways was closely correlated with the DBNDD1 gene and its co-expressed genes in PCa. DBNDD1 gene expression was positively associated with immune infiltration of B cells, Myeloid-derived suppressor cell (MDSC), M2 macrophages, andneutrophil, whereas negatively correlated with CD8+ T cells, T follicular helper cells, M1 macrophages, and NK cells in PCa. These findings suggest that DBNDD1 may serve as a viable prognostic marker not only for early-stage PCa but also for immunotherapies. Full article
(This article belongs to the Special Issue Current Research for Castration Resistance Prostate Cancer)
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