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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
PubMed

Insights

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.
Keywords:
AldosteroneAldosterone-producing lesionsCXCR4CYP11B2ID3

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