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Smoothelin in adult and developing human arteries and myocardium.
Umeå University, Faculty of Medicine, Department of Integrative Medical Biology (IMB).ORCID iD: 0000-0003-0976-6910
1999 (English)In: Histochemistry and Cell Biology, ISSN 0948-6143, E-ISSN 1432-119X, Vol. 112, no 4, 291-9 p.Article in journal (Refereed) Published
Abstract [en]

The aim of this investigation was to study, with immunohistochemical methods, the distribution of the novel cytoskeletal protein smoothelin in human cardiovascular tissues, the possible changes during the development of the cardiovascular system and its correlation to the intermediate filament proteins desmin and vimentin. Smoothelin was detected in smooth muscle cells of the fetal coronary arteries. In very young subjects (up to 3 months of age), only a few cells in the media of the elastic arteries contained smoothelin, whereas it was present in most smooth muscle cells in the muscular arteries. In individuals older than 1 year, most smooth muscle cells in the media of all blood vessels contained smoothelin. In vessels with a developed intima, smoothelin was present in a variable proportion of the smooth muscle cells. With few exceptions, smoothelin was more frequently detected than desmin in medial smooth muscle cells. Smoothelin and vimentin were codistributed in the smooth muscle cells of the media in most vessels. In the cardiomyocytes (fetal to adult age), the smoothelin antibody detected epitopes located at the Z-disc level but not in the intercalated discs. In conclusion, smoothelin is more widely distributed in the muscular arteries than in the elastic arteries early in life, and thus exhibits a variable distribution during postnatal development of vascular tissues. In the adult, smoothelin is detected in the media of most vascular smooth muscle cells, both in muscular and elastic arteries, and is not necessarily codistributed with either desmin or vimentin. Evidence that smoothelin is present in human striated cardiomyocytes is also presented.

Place, publisher, year, edition, pages
1999. Vol. 112, no 4, 291-9 p.
National Category
Cell and Molecular Biology
Identifiers
URN: urn:nbn:se:umu:diva-140271PubMedID: 10550614OAI: oai:DiVA.org:umu-140271DiVA: diva2:1146777
Available from: 2017-10-04 Created: 2017-10-04 Last updated: 2017-10-04

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CiteExportLink to record
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Citation style
  • apa
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