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Curr Rheumatol Rep. 2012 Feb;14(1):56-63. doi: 10.1007/s11926-011-0219-1.

Angiogenesis and vasculopathy in systemic sclerosis: evolving concepts.

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  • 1Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, MI 48109-2200, USA. brabquer@med.umich.edu

Abstract

Systemic sclerosis (scleroderma [SSc]) is a multifactorial disease characterized by inflammation, extensive and progressive fibrosis, and multiple vasculopathies. The vascular manifestations can be seen early in the pathogenesis of the disease and include malformed capillaries, Raynaud's phenomenon, and digital ulcers. As the disease progresses, the vasculopathy proceeds to significant clinical manifestations, including renal crisis and pulmonary arterial hypertension. Moreover, later stages of the disease are marked by increasingly avascular areas. Despite the obliteration of microvascular structures, compensatory vasculogenesis and angiogenesis do not occur normally. This is in spite of a general increase in many potent angiogenic factors. Recent studies are beginning to examine this paradox and subsequent paucity of an angiogenic response in SSc. In this review, we discuss these findings and examine the role that chemokine and growth factor receptors, proteases, adhesion molecules, and transcription factors play in the dysregulation of angiogenesis in SSc.

PMID:
22083296
DOI:
10.1007/s11926-011-0219-1
[PubMed - indexed for MEDLINE]
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