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Transitional cell carcinoma express vitamin D receptors
1Department of Urology, Herlev University Hospital, Copenhagen, Denmark.
Scandinavian Journal of Urology and Nephrology
|April 1, 1997
Summary
Human bladder tumor cells express the vitamin D receptor (VDR). Higher VDR levels correlate with advanced transitional cell carcinoma (TCC), suggesting potential therapeutic roles for vitamin D analogues.
Area of Science:
- Oncology
- Endocrinology
- Urology
Background:
- Vitamin D analogues demonstrate antineoplastic effects in various diseases.
- Vitamin D receptor (VDR) is the mediator of vitamin D analogue actions.
- Limited research exists on VDR expression in transitional cell carcinoma (TCC).
Purpose of the Study:
- To investigate the expression of VDR in human bladder tumor cells (TCC).
Main Methods:
- Immunohistochemical analysis of VDR expression in tumor biopsies from 26 TCC patients.
- Correlation of VDR expression with tumor stage and grade.
Main Results:
- VDR was expressed in all examined TCC tumors.
- Advanced stage TCC exhibited higher VDR-positive cell counts compared to low-stage disease (p < 0.05).
- Tumor grade also showed a relationship with the number of VDR-expressing cells.
Conclusions:
- TCC cells express VDR, indicating potential responsiveness to vitamin D analogue therapy.
- Further in vitro studies are required to assess the functional impact of vitamin D on TCC cells.
- Clinical efficacy of vitamin D analogues in TCC treatment necessitates further investigation.