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논문 기본 정보

자료유형
학술저널
저자정보
Li Zhi-yu (Department of Physiology School of Medicine Yanbian University Yanji 133-002 ChinaInstitue of Clini) Liu Ying (Department of Physiology School of Medicine Yanbian University Yanji 133-002 China) Han Zhuo-na (Department of Physiology School of Medicine Yanbian University Yanji 133-002 China) Li Xiang (Department of Physiology School of Medicine Yanbian University Yanji 133-002 China) Wang Yue-ying (Department of Physiology School of Medicine Yanbian University Yanji 133-002 China) Cui Xun (Department of Physiology School of Medicine Yanbian University Yanji 133-002 ChinaCellular Function) Zhang Ying (Institue of Clinical Medicine Yanbian University Yanji 133-002 China)
저널정보
대한약리학회 The Korean Journal of Physiology & Pharmacology The Korean Journal of Physiology & Pharmacology 제26권 제6호
발행연도
2022.11
수록면
469 - 478 (10page)
DOI
10.4196/kjpp.2022.26.6.469

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WNT signaling plays an important role in cardiac development, but abnormal activity is often associated with cardiac hypertrophy, myocardial infarction, remodeling, and heart failure. The effect of WNT signaling on regulation of atrial natriuretic peptide (ANP) secretion is unclear. Therefore, the purpose of this study was to investigate the effect of Wnt agonist 1 (Wnta1) on ANP secretion and mechanical dynamics in beating rat atria. Wnta1 treatment significantly increased atrial ANP secretion and pulse pressure; these effects were blocked by U73122, an antagonist of phospholipase C. U73122 also abolished the effects of Wnta1-mediated upregulation of protein kinase C (PKC) β and γ expression, and the PKC antagonist Go 6983 eliminated Wnta1-induced secretion of ANP. In addition, Wnta1 upregulated levels of phospho-transforming growth factor-β activated kinase 1 (p-TAK1), TAK1 banding 1 (TAB1) and phospho-activating transcription factor 2 (p-ATF2); these effects were blocked by both U73122 and Go 6983. Wnta1-induced ATF2 was abrogated by inhibition of TAK1. Furthermore, Wnta1 upregulated the expression of T cell factor (TCF) 3, TCF4, and lymphoid enhancer factor 1 (LEF1), and these effects were blocked by U73122 and Go 6983. Tak1 inhibition abolished the Wnta1-induced expression of TCF3, TCF4, and LEF1 and Wnta1-mediated ANP secretion and changes in mechanical dynamics. These results suggest that Wnta1 increased the secretion of ANP and mechanical dynamics in beating rat atria by activation of PKC–TAK1–ATF2–TCF3/LEF1 and TCF4/LEF1 signaling mainly via the WNT/Ca2+ pathway. It is also suggested that WNT–ANP signaling is implicated in cardiac physiology and pathophysiology.

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