Untangling the role of amyloid in atherosclerosis.

Untangling the role of amyloid in atherosclerosis. Research Abstract Details 

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Untangling the role of amyloid in atherosclerosis. Abstract Text:

Geoffrey J Howlett,Kathryn J Moore,

PURPOSE OF REVIEW: Amyloid deposits are a defining feature of several age-related and debilitating diseases. Their widespread presence in atherosclerotic plaques suggests a potential role in lesion development. This review discusses the proteins known to accumulate in atheroma and examines the evidence that amyloid-like structures activate macrophage signaling pathways linked to inflammation and prothrombotic potential. RECENT FINDINGS: Numerous proteins that accumulate in atherosclerotic plaques form amyloid fibrils in vivo, including apolipoproteins, beta-amyloid, and alpha1-antitrypsin. In addition, oxidation or enzymatic modification of low-density lipoproteins induces a structural reorganization of the particle, including the acquisition of amyloid-like properties. Similarly, glycation of serum albumin, as observed in diabetes, is accompanied by the formation of aggregates with all the hallmarks of amyloid. Several receptors implicated in atherogenesis modulate the fate of amyloid fibrils by mediating their clearance (scavenger receptors A and B-I), activating inflammatory signaling cascades (receptor for advanced glycation endproducts), or both (CD36). Finally, recent studies indicate that amyloid deposition accelerates diet-induced atherosclerosis in mice. SUMMARY: Given the substantial evidence that amyloid fibrils or preamyloidogenic species are cytotoxic, the aberrant deposition of amyloid in the intima may be pathologically important in vascular inflammation and the promotion of atherosclerosis.

Untangling the role of amyloid in atherosclerosis. Publishing Authors By Initials

GJ Howlett,KJ Moore,

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Untangling the role of amyloid in atherosclerosis. Journal Published:

PUBLICATION TYPE: Review

Journal: Current opinion in lipidology

VOLUME: 17

Page Numbers: 541-7

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ISSN: 0957-9672

DAY: 3

MONTH: Oct

YEAR: 2006

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LANGUAGE: eng

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AFFILIATION: Department of Biochemistry and Molecular Biology, University of Melbourne, Victoria, Australia.

Country: England

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MEDLINETA: Curr Opin Lipidol

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