Microvessels respond to metabolic stimuli (e.g. pO(2)) and hemodynamic forces (e.g. shear stress and wall stress) with structural adaptations including angiogenesis, remodeling and pruning. These responses could be mediated by differential gene expression in endothelial and smooth muscle cells. Therefore, rat mesenteric arteries and veins were excised by microsurgery, and mRNA expression of four angioadaptation-related genes was quantified by real time duplex RT-PCR in equal amounts of total RNA, correlated to two different house keeping genes (beta-actin, GAPDH). The results show higher expression of VEGFA, TIE2, and ANG2 in arteries than in veins, but equal expression of ADAMTS1. Higher availability of VEGFA mRNA in endothelial cells of arteries shown here could contribute to the maintenance of mechanically stressed blood vessels and counteract pressure-induced vasoconstriction.

• MeSH
• angiopoetin-2 genetika   MeSH
• arteriae mesentericae fyziologie   MeSH
• cévní endotel fyziologie   MeSH
• exprese genu fyziologie   MeSH
• fyziologická adaptace fyziologie   MeSH
• krysa rodu rattus MeSH
• messenger RNA metabolismus   MeSH
• mikrocirkulace fyziologie   MeSH
• polymerázová řetězová reakce s reverzní transkripcí MeSH
• potkani Sprague-Dawley MeSH
• proteiny ADAM genetika   MeSH
• receptor TIE-2 genetika   MeSH
• svaly hladké cévní fyziologie   MeSH
• vaskulární endoteliální růstový faktor A genetika   MeSH
• vazokonstrikce fyziologie   MeSH
• vena mesenterica fyziologie   MeSH
• zvířata MeSH
• Check Tag
• krysa rodu rattus MeSH
• mužské pohlaví MeSH
• zvířata MeSH