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Renin in Wilms' tumor: prorenin as an indicator
B J Leckie1, G Birnie, R Carachi
1MRC Blood Pressure Unit, Western Infirmary, CRC Beatson Laboratories, Glasgow, Scotland.
The Journal of Clinical Endocrinology and Metabolism
|December 1, 1994
Summary
Plasma prorenin levels may indicate nephroblastoma (Wilms' tumor) in children. Elevated prorenin concentrations were observed in patients with the tumor and during recurrence, suggesting its potential as a biomarker.
Area of Science:
- Pediatric Oncology
- Biochemistry
- Renal Physiology
Background:
- Nephroblastoma, also known as Wilms' tumor, is a common pediatric kidney cancer.
- The renin-angiotensin-aldosterone system plays a role in blood pressure regulation.
- The role of prorenin and renin in nephroblastoma pathogenesis is not fully understood.
Purpose of the Study:
- To investigate plasma prorenin and renin concentrations in children with nephroblastoma.
- To determine if these concentrations correlate with tumor presence or recurrence.
- To analyze the presence and characteristics of renin within nephroblastoma tissue.
Main Methods:
- Prospective study involving 25 children diagnosed with nephroblastoma.
- Measurement of preoperative plasma prorenin and renin concentrations.
- Analysis of nephroblastoma tissue for renin and renin messenger RNA (mRNA).
Main Results:
- Children with nephroblastoma exhibited higher mean plasma prorenin and renin concentrations compared to controls.
- Three out of four children experiencing tumor recurrence showed increased plasma prorenin levels.
- Nephroblastoma tissue demonstrated the presence of renin and renin mRNA, with renin being similar to normal human renin.
Conclusions:
- Elevated plasma prorenin concentrations are associated with nephroblastoma in children.
- Plasma prorenin may serve as a potential indicator or biomarker for nephroblastoma.
- Further research is warranted to explore the clinical utility of prorenin in managing Wilms' tumor.