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Cytoskeletal and cellular adhesion proteins in zebrafish (Danio rerio) myogenesis 56
Costa,M.L.; Escaleira,R.; Manasfi,M.; Souza,L.F. de; Mermelstein,C.S..
The current myogenesis and myofibrillogenesis model has been based mostly on in vitro cell culture studies, and, to a lesser extent, on in situ studies in avian and mammalian embryos. While the more isolated artificial conditions of cells in culture permitted careful structural analysis, the actual in situ cellular structures have not been described in detail because the embryos are more difficult to section and manipulate. To overcome these difficulties, we used the optically clear and easy to handle embryos of the zebrafish Danio rerio. We monitored the expression of cytoskeletal and cell-adhesion proteins (actin, myosin, desmin, alpha-actinin, troponin, titin, vimentin and vinculin) using immunofluorescence microscopy and video-enhanced,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cytoskeleton; Cell adhesion; Zebrafish; Myogenesis.
Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2003000800019
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Desmin: molecular interactions and putative functions of the muscle intermediate filament protein 56
Costa,M.L.; Escaleira,R.; Cataldo,A.; Oliveira,F.; Mermelstein,C.S..
Desmin is the intermediate filament (IF) protein occurring exclusively in muscle and endothelial cells. There are other IF proteins in muscle such as nestin, peripherin, and vimentin, besides the ubiquitous lamins, but they are not unique to muscle. Desmin was purified in 1977, the desmin gene was characterized in 1989, and knock-out animals were generated in 1996. Several isoforms have been described. Desmin IFs are present throughout smooth, cardiac and skeletal muscle cells, but can be more concentrated in some particular structures, such as dense bodies, around the nuclei, around the Z-line or in costameres. Desmin is up-regulated in muscle-derived cellular adaptations, including conductive fibers in the heart, electric organs, some myopathies, and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Desmin; Intermediate filaments; Muscle; Myogenesis; Myopathy.
Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2004001200007
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