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Hormone receptor expression in hypospadias
Christina Perske1, Michael Sennert2, Mohammed Fawzy2
1Institute for Pathology, University Medical Center Goettingen, Germany.
Journal of Pediatric Urology
|August 2, 2023
Summary
Boys with hypospadias exhibit significantly lower androgen receptor (AR) expression in foreskin tissue compared to age-matched controls. Hormone receptor levels did not correlate with hypospadias severity, but AR expression was more pronounced in stromal cells.
Area of Science:
- Urology
- Developmental Biology
- Endocrinology
Background:
- In utero sex hormone imbalance is a suspected factor in hypospadias pathogenesis.
- Foreskin tissue is utilized to study hormone receptor expression in pediatric patients.
Purpose of the Study:
- To systematically assess hormone receptor expression in pediatric hypospadias cases versus controls.
- To investigate the influence of hypospadias severity and age on receptor expression.
Main Methods:
- Foreskin samples from 35 hypospadias patients and 32 controls were analyzed.
- Immunohistochemical staining for androgen (AR), estrogen (ER), and progesterone receptors (PR) was performed.
- Receptor expression was quantified using the Allred score in epithelial and stromal compartments.
Main Results:
- Androgen receptor (AR) expression was significantly lower in hypospadias groups compared to age-matched controls.
- AR expression was more prominent in the stroma than the epithelium and did not correlate with hypospadias severity.
- Estrogen receptor (ER) expression was detected in all samples, with higher levels in older controls; progesterone receptor (PR) expression was minimal.
Conclusions:
- Reduced AR expression in foreskin tissue is associated with hypospadias.
- Hypospadias severity does not impact hormone receptor distribution.
- Stromal AR expression is a key finding, suggesting potential roles in hypospadias development.
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