Coronary artery disease in a Werner syndrome-like form of progeria characterized by low levels of progerin, a splice variant of lamin A

Fuki M. Hisama, Davor Lessel, Dru Leistritz, Katrin Friedrich, Kim L. Mcbride, Matthew T. Pastore, Gary S. Gottesman, Bidisha Saha, George M. Martin, Christian Kubisch, Junko Oshima

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43 Scopus citations

Abstract

Classical Hutchinson-Gilford progeria syndrome (HGPS) is caused by LMNA mutations that generate an alternatively spliced form of lamin A, termed progerin. HGPS patients present in early childhood with atherosclerosis and striking features of accelerated aging. We report on two pedigrees of adult-onset coronary artery disease with progeroid features, who were referred to our International Registry of Werner Syndrome (WS) because of clinical features consistent with the diagnosis. No mutations were identified in the WRN gene that is responsible for WS, among these patients. Instead, we found two novel heterozygous mutations at the junction of exon 10 and intron 11 of the LMNA gene. These mutations resulted in the production of progerin at a level substantially lower than that of HGPS. Our findings indicate that LMNA mutations may result in coronary artery disease presenting in the fourth to sixth decades along with short stature and a progeroid appearance resembling WS. The absence of early-onset cataracts in this setting should suggest the diagnosis of progeroid laminopathy. This study illustrates the evolving genotype-phenotype relationship between the amount of progerin produced and the age of onset among the spectrum of restrictive dermopathy, HGPS, and atypical forms of WS. © 2011 Wiley Periodicals, Inc.

Original languageEnglish
Pages (from-to)3002-3006
Number of pages5
JournalAmerican Journal of Medical Genetics, Part A
Volume155
Issue number12
DOIs
StatePublished - Dec 2011

Keywords

  • Genetic disorder
  • Human
  • Hutchinson-Gilford progeria syndrome
  • Lamin A
  • Progeroid syndrome
  • Werner syndrome

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