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Modulation of smooth muscle cell proliferation and migration: role of smooth muscle cell heterogeneity

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Published in Handbook of Experimental Pharmacology. 2005, no. 170, p. 645-663
Abstract Proliferation and migration of smooth muscle cells (SMCs) from the media towards the intima are key events in atherosclerosis and restenosis. During these processes, SMC undergo phenotypic modulations leading to SMC dedifferentiation. The identification and characterization of factors controlling these phenotypic changes are crucial in order to prevent the formation of intimal thickening. One of the questions which presently remains open, is to know whether any SMCs of the media are capable of accumulating into the intima or whether only a predisposed medial SMC subpopulation is involved in this process. The latter hypothesis implies that arterial SMCs are phenotypically heterogenous. In this chapter, we will describe the distinct SMC phenotypes identified in arteries of various species, including humans. Their role in the formation of intimal thickening will be discussed.
Keywords AnimalsApoptosisCell DifferentiationCell MovementCell ProliferationCytoskeleton/physiologyHumansMuscle, Smooth, Vascular/ cytologyMyocytes, Smooth Muscle/ physiology
Stable URL http://archive-ouverte.unige.ch/unige:10866
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PMID: 16596818
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