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(Arteriosclerosis, Thrombosis, and Vascular Biology. 2004;24:1591.)
© 2004 American Heart Association, Inc.

Brief Reviews

Laminopathies and Atherosclerosis

Khalid Z. Al-Shali; Robert A. Hegele

From the Robarts Research Institute and University of Western Ontario, London, Canada.

Correspondence to Robert A. Hegele, MD, FRCPC, FACP, 406-100 Perth Dr, London, Ontario, Canada N6A 5K8. E-mail hegele{at}robarts.ca

Laminopathies are genetic diseases that encompass a wide spectrum of phenotypes with diverse tissue pathologies and result mainly from mutations in the LMNA gene encoding nuclear lamin A/C. Some laminopathies affect the cardiovascular system, and a few (namely, Dunnigan-type familial partial lipodystrophy [FPLD2] and Hutchinson-Gilford progeria syndrome [HGPS]) feature atherosclerosis as a key component. The premature atherosclerosis of FPLD2 is probably related to characteristic proatherogenic metabolic disturbances such as dyslipidemia, hyperinsulinemia, hypertension, and diabetes. In contrast, the premature atherosclerosis of HGPS occurs with less exposure to metabolic proatherogenic traits and probably reflects the generalized process of accelerated aging in HGPS. Although some common polymorphisms of LMNA have been associated with traits related to atherosclerosis, the monogenic diseases FPLD2 and HGPS are more likely to provide clues about new pathways for the general process of atherosclerosis.

Dunnigan-type familial partial lipodystrophy and Hutchinson-Gilford progeria syndrome are laminopathies caused by mutation in LMNA that feature atherosclerosis, which is related to proatherogenic metabolic disturbances and to the generalized process of accelerated aging, respectively. These monogenic diseases may provide clues about new pathways for atherogenesis.

Key Words: nuclear envelope • insulin resistance • aging • vascular disease • progeria

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