Cardiospecific deletion of β-catenin gene associated with an activity violation of signaling cascades involved in the development of myocardial hypertrophy
Journal Title: Вісник Українського товариства генетиків і селекціонерів - Year 2017, Vol 15, Issue 2
Abstract
The aim of our study was to investigate the molecular mechanisms of hypertrophy response under cardiospecific β-catenin haploinsufficiency condition. Materials and methods. Studies were done with β-catenin condtional knockout mice (β-catflox/flox) and α-MHC-Cre-transgenic mice. To induce hypertrophy we used swimming test during 6 weeks. Using western-blot, we have analyzed the level of studied proteins. Results. It has been shown that the β-catenin haploinsufficiency is associated with increased signaling activity of MAPK, PI3-kinase-mTOR-dependent signaling cascades in both: with prolonged physical activity and without it. However, even with an increased activity of this signalling, β-catenin haploinsufficient mice expressed weaker hypertrophic response. Conclusions. The transcriptional activity of β-catenin is necessary for the proper interaction of signaling cascades during heart maturation and adaptation to stress.Keywords: β-catenin, hypertrophy, Wnt-signalling, MAPK signalling, PI3-kinase-mTOR-dependent cascade, РКА-signalling, myocardium.
Authors and Affiliations
O. L. Palchevska, V. V. Balatskyi, L. L. Macewicz, O. O. Piven
Ярослав Борисович Блюм (до 60-річчя від дня народження)
Віталій Арнольдович Кордюм (до 85-річчя від дня народження)
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