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Molecular Mechanisms of Acquiring Resistance to Treatments in Prostate Cancer: Perspectives of Old and New Organelles

A special issue of International Journal of Molecular Sciences (ISSN 1422-0067). This special issue belongs to the section "Molecular Pathology, Diagnostics, and Therapeutics".

Deadline for manuscript submissions: 20 May 2025 | Viewed by 2077

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Guest Editor
Department of Oncologic Pathology, Graduate School of Medicine, Mie University, Tsu 514-8507, Mie, Japan
Interests: prostate cancer; tumor microenvironment; organelle; medical engineering
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Prostate cancer (PC) is one of the most diagnosed cancers in the world, for which it’s initiation and progression is driven by the androgen–androgen receptor (AR) axis. This axis can be targeted with some androgen deprivation therapies (ADT), which provide an initial benefit. However, 10–20% of cases progress to castration-resistant prostate cancer (CRPC) after ADT. In particular, metastatic CRPC (mCRPC) shows a poor prognosis and remains a significant medical challenge. Mechanisms of acquiring resistance to ADT in prostate cancer include AR overexpression, AR mutations, alterations in AR coactivators, and various signaling pathways. In addition, taxanes are the most active chemotherapy drugs used for mCRPC. mCRPC initially responds well, but it develops resistance as well. It is necessary that the acquisition of resistance to these various treatments is considered from a new perspective. Recently, various organelles such as Golgi apparatus, endoplasmic reticulum, and primary cilia have been shown to acquire resistance to treatments in prostate cancer.

Thus, in order to provide a comprehensive view of the recent advances in the mechanisms of acquiring resistance to treatments in prostate cancer from the perspective of old and new organelles, we invite researchers to submit original research papers and high-quality comprehensive reviews rooted within the molecular oncology research field to this Special Issue.

Prof. Dr. Masatoshi Watanabe
Guest Editor

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Keywords

  • prostate cancer
  • castration-resistance
  • organelle
  • endoplasmic reticulum stress
  • mitochondria
  • Golgi apparatus
  • primary cilia
  • chemotherapy
  • radiation therapy
  • immunotherapy
  • PARP inhibitor
  • chemoresistance
  • radio-resistance
  • treatment-related neuroendocrine prostate cancer

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Published Papers (1 paper)

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Review

11 pages, 1197 KiB  
Review
Purine-Rich Element Binding Protein Alpha, a Nuclear Matrix Protein, Has a Role in Prostate Cancer Progression
by Takahiro Inoue, Xin Bao, Takumi Kageyama, Yusuke Sugino, Sho Sekito, Shiori Miyachi, Takeshi Sasaki and Robert Getzenberg
Int. J. Mol. Sci. 2024, 25(13), 6911; https://doi.org/10.3390/ijms25136911 - 24 Jun 2024
Viewed by 1376
Abstract
Solid tumors as well as leukemias and lymphomas show striking changes in nuclear structure including nuclear size and shape, the number and size of nucleoli, and chromatin texture. These alterations have been used in cancer diagnosis and might be related to the altered [...] Read more.
Solid tumors as well as leukemias and lymphomas show striking changes in nuclear structure including nuclear size and shape, the number and size of nucleoli, and chromatin texture. These alterations have been used in cancer diagnosis and might be related to the altered functional properties of cancer cells. The nuclear matrix (NM) represents the structural composition of the nucleus and consists of nuclear lamins and pore complexes, an internal ribonucleic protein network, and residual nucleoli. In the nuclear microenvironment, the NM is associated with multi-protein complexes, such as basal transcription factors, signaling proteins, histone-modifying factors, and chromatin remodeling machinery directly or indirectly through scaffolding proteins. Therefore, alterations in the composition of NM could result in altered DNA topology and changes in the interaction of various genes, which could then participate in a cascade of the cancer process. Using an androgen-sensitive prostate cancer cell line, LNCaP, and its androgen-independent derivative, LN96, conventional 2D-proteomic analysis of the NM proteins revealed that purine-rich element binding protein alpha (PURα) was detected in the NM proteins and differentially expressed between the cell lines. In this article, we will review the potential role of the molecule in prostate cancer. Full article
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