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Article

Dec1 Deficiency Suppresses Cardiac Perivascular Fibrosis Induced by Transverse Aortic Constriction

1
Department of Physiology, Wakayama Medical University, Wakayama 641-8509, Japan
2
Department of Physiology, Hanoi Medical University, Hanoi 100000, Vietnam
3
Department of Pathology, Wakayama Medical University, Wakayama 641-8509, Japan
4
Department of Biochemistry and Molecular Biology, Nihon University School of Dentistry at Matsudo, Matsudo 271-8587, Japan
*
Author to whom correspondence should be addressed.
Int. J. Mol. Sci. 2019, 20(19), 4967; https://0-doi-org.brum.beds.ac.uk/10.3390/ijms20194967
Received: 5 September 2019 / Revised: 3 October 2019 / Accepted: 5 October 2019 / Published: 8 October 2019
(This article belongs to the Special Issue Crosstalk between Circadian Rhythm and Diseases)
Cardiac fibrosis is a major cause of cardiac dysfunction in hypertrophic hearts. Differentiated embryonic chondrocyte gene 1 (Dec1), a basic helix–loop–helix transcription factor, has circadian expression in the heart; however, its role in cardiac diseases remains unknown. Therefore, using Dec1 knock-out (Dec1KO) and wild-type (WT) mice, we evaluated cardiac function and morphology at one and four weeks after transverse aortic constriction (TAC) or sham surgery. We found that Dec1KO mice retained cardiac function until four weeks after TAC. Dec1KO mice also revealed more severely hypertrophic hearts than WT mice at four weeks after TAC, whereas no significant change was observed at one week. An increase in Dec1 expression was found in myocardial and stromal cells of TAC-treated WT mice. In addition, Dec1 circadian expression was disrupted in the heart of TAC-treated WT mice. Cardiac perivascular fibrosis was suppressed in TAC-treated Dec1KO mice, with positive immunostaining of S100 calcium binding protein A4 (S100A4), alpha smooth muscle actin (αSMA), transforming growth factor beta 1 (TGFβ1), phosphorylation of Smad family member 3 (pSmad3), tumor necrosis factor alpha (TNFα), and cyclin-interacting protein 1 (p21). Furthermore, Dec1 expression was increased in myocardial hypertrophy and myocardial infarction of autopsy cases. Taken together, our results indicate that Dec1 deficiency suppresses cardiac fibrosis, preserving cardiac function in hypertrophic hearts. We suggest that Dec1 could be a new therapeutic target in cardiac fibrosis. View Full-Text
Keywords: Dec1; cardiac fibrosis; immunohistochemistry; αSMA; S100A4 Dec1; cardiac fibrosis; immunohistochemistry; αSMA; S100A4
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MDPI and ACS Style

Le, H.T.; Sato, F.; Kohsaka, A.; Bhawal, U.K.; Nakao, T.; Muragaki, Y.; Nakata, M. Dec1 Deficiency Suppresses Cardiac Perivascular Fibrosis Induced by Transverse Aortic Constriction. Int. J. Mol. Sci. 2019, 20, 4967. https://0-doi-org.brum.beds.ac.uk/10.3390/ijms20194967

AMA Style

Le HT, Sato F, Kohsaka A, Bhawal UK, Nakao T, Muragaki Y, Nakata M. Dec1 Deficiency Suppresses Cardiac Perivascular Fibrosis Induced by Transverse Aortic Constriction. International Journal of Molecular Sciences. 2019; 20(19):4967. https://0-doi-org.brum.beds.ac.uk/10.3390/ijms20194967

Chicago/Turabian Style

Le, Hue T., Fuyuki Sato, Akira Kohsaka, Ujjal K. Bhawal, Tomomi Nakao, Yasuteru Muragaki, and Masanori Nakata. 2019. "Dec1 Deficiency Suppresses Cardiac Perivascular Fibrosis Induced by Transverse Aortic Constriction" International Journal of Molecular Sciences 20, no. 19: 4967. https://0-doi-org.brum.beds.ac.uk/10.3390/ijms20194967

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