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Carney Complex

Crystal D C Kamilaris1, Fabio Rueda Faucz1, Antonis Voutetakis2

  • 1Section on Endocrinology and Genetics & Endocrinology Inter-institute Training Program, Eunice Kennedy Shriver National Institute of Child Health & Human Development (NICHD), National Institutes of Health (NIH), Bethesda, MD, USA.

Experimental and Clinical Endocrinology & Diabetes : Official Journal, German Society of Endocrinology [And] German Diabetes Association
|November 15, 2018
PubMed

Insights

Carney complex, a genetic disorder caused by PRKAR1A gene defects, leads to skin issues and various tumors. Understanding PRKAR1A gene function is crucial for managing this rare endocrine and lentiginosis syndrome.

Area of Science:

  • Genetics
  • Endocrinology
  • Oncology

Background:

  • Carney complex is a rare autosomal dominant disorder.
  • It involves multiple endocrine neoplasia and lentiginosis.
  • Most cases stem from defects in the PRKAR1A gene, impacting protein kinase A signaling.

Purpose of the Study:

  • To summarize the genetic basis and clinical manifestations of Carney complex.
  • To highlight the role of PRKAR1A gene defects.
  • To detail the spectrum of endocrine and non-endocrine tumors associated with the syndrome.

Main Methods:

  • Review of existing literature on Carney complex.
  • Analysis of genetic defects in PRKAR1A.
  • Compilation of reported clinical features and tumor types.

Main Results:

  • PRKAR1A gene defects cause aberrant cyclic-AMP-protein kinase A signaling.
  • Patients develop skin abnormalities, endocrine tumors (adrenal, pituitary, gonadal, thyroid), and non-endocrine tumors (myxomas, schwannomas, adenomas, osteochondromyxomas).
  • Increased risk of malignancies including adrenal, pancreatic, and liver cancer.

Conclusions:

  • PRKAR1A gene mutations are central to Carney complex pathogenesis.
  • The syndrome presents with a wide array of neoplastic manifestations.
  • Comprehensive management requires awareness of diverse endocrine and non-endocrine tumor risks.

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