Araştırma Makalesi

Metabolic Sabotage of the Vitamin D Axis: Transcriptomic Rewiring of CYP24A1 and CYP27A1 Drives Endocrine Resistance in Castration-Resistant Prostate Cancer

Cilt: 48 Sayı: 6 22 Eylül 2026
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Metabolic Sabotage of the Vitamin D Axis: Transcriptomic Rewiring of CYP24A1 and CYP27A1 Drives Endocrine Resistance in Castration-Resistant Prostate Cancer

Öz

Prostate cancer frequently progresses to an aggressive, castration-resistant (CRPC) stage with limited therapeutic options. Despite the tumor-suppressive potential of active Vitamin D (calcitriol), CRPC clinical trials have yielded disappointing results, suggesting tumors possess specialized evasion mechanisms. This study investigates whether this resistance is driven by genomic mutations or dynamic metabolic rewiring. We performed targeted transcriptomic profiling of the core Vitamin D signaling network, comparing normal prostate epithelial cells (RWPE-1) with metastatic CRPC cells (PC3). We also conducted an Over-Representation Analysis (ORA) targeting lipid and steroid metabolic networks. Clinical relevance was validated using the TCGA Prostate Adenocarcinoma cohort. This validation revealed that structural genomic alterations across the Vitamin D network are exceedingly rare (mutation frequencies ≤1.4% for VDR, CYP24A1, CYP27A1, and CDKN1A). Instead, in vitro analysis demonstrated that aggressive cells utilize dynamic transcriptomic rewiring to construct a "metabolic barrier." While maintaining a stable Vitamin D Receptor (VDR) profile, PC3 cells synchronously suppress the biosynthetic enzyme CYP27A1 and upregulate the catabolic enzyme CYP24A1. Furthermore, ORA highlighted significant enrichment of altered lipid and steroid metabolic networks. Ultimately, CRPC evades Vitamin D suppression through a non-mutational "metabolic sabotage" strategy, actively starving the intact receptor of its ligand via a highly restrictive catabolic microenvironment. Overcoming this endocrine resistance likely requires combining Vitamin D therapies with potent catabolic inhibitors.

Anahtar Kelimeler

Destekleyen Kurum

None

Proje Numarası

yok

Etik Beyan

Ethics committee approval was not required for this study. The research relies exclusively on the computational analysis of publicly available, anonymized transcriptomic RNA-seq datasets and patient genomic data from the TCGA Prostate Adenocarcinoma (PanCancer Atlas) cohort. No human participants, animal subjects, or identifiable personal data were directly involved in this study.

Teşekkür

None

Kaynakça

  1. 1. Bray F, Ferlay J, Soerjomataram I, Siegel RL, Torre LA, Jemal A. Global cancer statistics 2018: GLOBOCAN estimates of incidence and mortality worldwide for 36 cancers in 185 countries. CA Cancer J Clin 2018;68:394–424.
  2. 2. Aydin VK. Computational Identification of Differentially Expressed Genes in Prostate Cancer Using Integrated Public Datasets. Russ J Genet 2026;62:386–97.
  3. 3. Feldman D, Krishnan A V., Swami S, Giovannucci E, Feldman BJ. The role of vitamin D in reducing cancer risk and progression. Nat Rev Cancer 2014;14:342–57.
  4. 4. Carlberg C, Muñoz A. An update on vitamin D signaling and cancer. Semin Cancer Biol 2022;79:217–30.
  5. 5. Tuohimaa P, Lyakhovich A, Aksenov N, Pennanen P, Syvälä H, Lou YR, et al. Vitamin D and prostate cancer. J Steroid Biochem Mol Biol 2001;76:125–34.
  6. 6. Campbell MJ, Trump DL. Vitamin D Receptor Signaling and Cancer. Endocrinol Metab Clin North Am 2017;46:1009–38.
  7. 7. Manson JE, Cook NR, Lee I-M, Christen W, Bassuk SS, Mora S, et al. Vitamin D Supplements and Prevention of Cancer and Cardiovascular Disease. New England Journal of Medicine 2019;380:33–44.
  8. 8. Abeshouse A, Ahn J, Akbani R, Ally A, Amin S, Andry CD, et al. The Molecular Taxonomy of Primary Prostate Cancer. Cell 2015;163:1011–25.

Ayrıntılar

Birincil Dil

İngilizce

Konular

Üroloji

Bölüm

Araştırma Makalesi

Yayımlanma Tarihi

22 Eylül 2026

Gönderilme Tarihi

18 Haziran 2026

Kabul Tarihi

24 Ağustos 2026

Yayımlandığı Sayı

Yıl 2026 Cilt: 48 Sayı: 6

Kaynak Göster

APA
Aydın, V. K., & Ün, S. (2026). Metabolic Sabotage of the Vitamin D Axis: Transcriptomic Rewiring of CYP24A1 and CYP27A1 Drives Endocrine Resistance in Castration-Resistant Prostate Cancer. Osmangazi Tıp Dergisi, 48(6), 1122-1128. https://doi.org/10.20515/otd.1974092
AMA
1.Aydın VK, Ün S. Metabolic Sabotage of the Vitamin D Axis: Transcriptomic Rewiring of CYP24A1 and CYP27A1 Drives Endocrine Resistance in Castration-Resistant Prostate Cancer. Osmangazi Tıp Dergisi. 2026;48(6):1122-1128. doi:10.20515/otd.1974092
Chicago
Aydın, Veli Kaan, ve Sıtkı Ün. 2026. “Metabolic Sabotage of the Vitamin D Axis: Transcriptomic Rewiring of CYP24A1 and CYP27A1 Drives Endocrine Resistance in Castration-Resistant Prostate Cancer”. Osmangazi Tıp Dergisi 48 (6): 1122-28. https://doi.org/10.20515/otd.1974092.
EndNote
Aydın VK, Ün S (01 Eylül 2026) Metabolic Sabotage of the Vitamin D Axis: Transcriptomic Rewiring of CYP24A1 and CYP27A1 Drives Endocrine Resistance in Castration-Resistant Prostate Cancer. Osmangazi Tıp Dergisi 48 6 1122–1128.
IEEE
[1]V. K. Aydın ve S. Ün, “Metabolic Sabotage of the Vitamin D Axis: Transcriptomic Rewiring of CYP24A1 and CYP27A1 Drives Endocrine Resistance in Castration-Resistant Prostate Cancer”, Osmangazi Tıp Dergisi, c. 48, sy 6, ss. 1122–1128, Eyl. 2026, doi: 10.20515/otd.1974092.
ISNAD
Aydın, Veli Kaan - Ün, Sıtkı. “Metabolic Sabotage of the Vitamin D Axis: Transcriptomic Rewiring of CYP24A1 and CYP27A1 Drives Endocrine Resistance in Castration-Resistant Prostate Cancer”. Osmangazi Tıp Dergisi 48/6 (01 Eylül 2026): 1122-1128. https://doi.org/10.20515/otd.1974092.
JAMA
1.Aydın VK, Ün S. Metabolic Sabotage of the Vitamin D Axis: Transcriptomic Rewiring of CYP24A1 and CYP27A1 Drives Endocrine Resistance in Castration-Resistant Prostate Cancer. Osmangazi Tıp Dergisi. 2026;48:1122–1128.
MLA
Aydın, Veli Kaan, ve Sıtkı Ün. “Metabolic Sabotage of the Vitamin D Axis: Transcriptomic Rewiring of CYP24A1 and CYP27A1 Drives Endocrine Resistance in Castration-Resistant Prostate Cancer”. Osmangazi Tıp Dergisi, c. 48, sy 6, Eylül 2026, ss. 1122-8, doi:10.20515/otd.1974092.
Vancouver
1.Veli Kaan Aydın, Sıtkı Ün. Metabolic Sabotage of the Vitamin D Axis: Transcriptomic Rewiring of CYP24A1 and CYP27A1 Drives Endocrine Resistance in Castration-Resistant Prostate Cancer. Osmangazi Tıp Dergisi. 01 Eylül 2026;48(6):1122-8. doi:10.20515/otd.1974092


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