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Published on: January 22, 2020
CXCR4 reduces aldosterone synthesis via regulating CYP11B2 expression.
Jiang Chen1, Shumin Yang1, Xinyue Yang1
1Department of Endocrinology, Sichuan-Chongqing Joint Key Laboratory of Metabolic Vascular Diseases, Chongqing Key Laboratory of Translational Medicine in Major Metabolic Diseases, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China.
Genes & Diseases
|June 15, 2026
Summary
C-X-C motif chemokine receptor 4 (CXCR4) suppresses aldosterone production in adrenal lesions. Elevated CXCR4 and aldosterone synthase (CYP11B2) suggest a compensatory role in primary aldosteronism.
Area of Science:
- Endocrinology
- Molecular Biology
- Oncology
Background:
- C-X-C motif chemokine receptor 4 (CXCR4) is highly expressed in aldosterone-producing adenoma.
- Gallium-68 pentixafor PET-CT imaging targets CXCR4 for primary aldosteronism diagnosis.
- The role of CXCR4 in aldosterone biosynthesis is not well understood.
Purpose of the Study:
- To investigate the function of CXCR4 in aldosterone biosynthesis.
- To elucidate the mechanism by which CXCR4 affects aldosterone production.
Main Methods:
- Co-localization studies of CXCR4 and aldosterone synthase (CYP11B2) in adrenal lesions.
- Functional experiments using H295R cells with CXCR4 overexpression and knockdown.
- Analysis of inhibitor of DNA binding (ID) protein expression and CYP11B2 transcription.
Main Results:
- CXCR4 co-localizes with CYP11B2 in aldosterone-producing adenomas and lesions.
- CXCR4 overexpression suppressed aldosterone synthesis and CYP11B2 expression.
- CXCR4 knockdown enhanced aldosterone production and CYP11B2 expression.
- CXCR4 inhibited aldosterone biosynthesis by up-regulating ID proteins, repressing CYP11B2 transcription.
Conclusions:
- CXCR4 plays a regulatory role in aldosterone biosynthesis.
- Elevated CXCR4 in aldosterone-producing lesions may act as a compensatory mechanism against high aldosterone levels.
- CXCR4 influences aldosterone production via the ID protein pathway.
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