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Verfasst von:Mosqueira, Matias [VerfasserIn]   i
 Scheid, Lisa-Mareike [VerfasserIn]   i
 Kiemel, Dominik [VerfasserIn]   i
 Richardt, Talisa [VerfasserIn]   i
 Rheinberger, Mona [VerfasserIn]   i
 Ollech, Dirk [VerfasserIn]   i
 Lutge, Almut [VerfasserIn]   i
 Heißenberg, Tim [VerfasserIn]   i
 Pfitzer, Lena [VerfasserIn]   i
 Engelskircher, Lisa [VerfasserIn]   i
 Yildiz, Umut [VerfasserIn]   i
 Porth, Isabel [VerfasserIn]   i
Titel:nNOS-derived NO modulates force production and iNO-derived NO the excitability in C2C12-derived 3D tissue engineering skeletal muscle via different NO signaling pathways
Verf.angabe:Matias Mosqueira, Lisa-Mareike Scheid, Dominik Kiemel, Talisa Richardt, Mona Rheinberger, Dirk Ollech, Almut Lutge, Tim Heißenberg, Lena Pfitzer, Lisa Engelskircher, Umut Yildiz and Isabel Porth
E-Jahr:2022
Jahr:15 August 2022
Umfang:19 S.
Fussnoten:Gesehen am 15.09.2022
Titel Quelle:Enthalten in: Frontiers in physiology
Ort Quelle:Lausanne : Frontiers Research Foundation, 2007
Jahr Quelle:2022
Band/Heft Quelle:13(2022), Artikel-ID 946682, Seite 1-19
ISSN Quelle:1664-042X
Abstract:Nitric oxide (NO) is a bioactive gas produced by one of the three NO synthases: neuronal NOS (nNOS), inducible (iNOS), and endothelial NOS (eNOS). NO has a relevant modulatory role in muscle contraction; this takes place through two major signaling pathways: (i) activation of soluble guanylate cyclase and, thus, protein kinase G or (ii) nitrosylation of sulfur groups of cysteine. Although it has been suggested that nNOS-derived NO is the responsible isoform in muscle contraction, the roles of eNOS and iNOS and their signaling pathways have not yet been clarified. To elucidate the action of each pathway, we optimized the generation of myooids, an engineered skeletal muscle tissue based on the C2C12 cell line. In comparison with diaphragm strips from wild-type mice, 180 myooids were analyzed, which expressed all relevant excitation-contraction coupling proteins and both nNOS and iNOS isoforms. Along with the biochemical results, myooids treated with NO donor (SNAP) and unspecific NOS blocker (L-NAME) revealed a comparable NO modulatory effect on force production as was observed in the diaphragm strips. Under the effects of pharmacological tools, we analyzed the myooids in response to electrical stimulation of two possible signaling pathways and NO sources. The nNOS-derived NO exerted its negative effect on force production via the sGG-PKG pathway, while iNOS-derived NO increased the excitability in response to sub-threshold electrical stimulation. These results strengthen the hypotheses of previous reports on the mechanism of action of NO during force production, showed a novel function of iNOS-derived NO, and establish the myooid as a novel and robust alternative model for pathophysiological skeletal muscle research.
DOI:doi:10.3389/fphys.2022.946682
URL:kostenfrei: Volltext: https://doi.org/10.3389/fphys.2022.946682
 kostenfrei: Volltext: https://www.frontiersin.org/articles/10.3389/fphys.2022.946682
 DOI: https://doi.org/10.3389/fphys.2022.946682
Datenträger:Online-Ressource
Sprache:eng
K10plus-PPN:1816713007
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