scholarly journals Retinoic Acid Production by Endocardium and Epicardium Is an Injury Response Essential for Zebrafish Heart Regeneration

2011 ◽  
Vol 20 (3) ◽  
pp. 397-404 ◽  
Author(s):  
Kazu Kikuchi ◽  
Jennifer E. Holdway ◽  
Robert J. Major ◽  
Nicola Blum ◽  
Randall D. Dahn ◽  
...  
Cell ◽  
2006 ◽  
Vol 127 (3) ◽  
pp. 607-619 ◽  
Author(s):  
Alexandra Lepilina ◽  
Ashley N. Coon ◽  
Kazu Kikuchi ◽  
Jennifer E. Holdway ◽  
Richard W. Roberts ◽  
...  

2013 ◽  
Vol 110 (33) ◽  
pp. 13416-13421 ◽  
Author(s):  
Y. Fang ◽  
V. Gupta ◽  
R. Karra ◽  
J. E. Holdway ◽  
K. Kikuchi ◽  
...  

2019 ◽  
Vol 6 (2) ◽  
pp. 16 ◽  
Author(s):  
Suneeta Narumanchi ◽  
Karri Kalervo ◽  
Sanni Perttunen ◽  
Hong Wang ◽  
Katariina Immonen ◽  
...  

The let-7c family of micro-RNAs (miRNAs) is expressed during embryonic development and plays an important role in cell differentiation. We have investigated the role of let-7c in heart regeneration after injury in adult zebrafish. let-7c antagomir or scramble injections were given at one day after cryoinjury (1 dpi). Tissue samples were collected at 7 dpi, 14 dpi and 28 dpi and cardiac function was assessed before cryoinjury, 1 dpi, 7 dpi, 14 dpi and 28 dpi. Inhibition of let-7c increased the rate of fibrinolysis, increased the number of proliferating cell nuclear antigen (PCNA) positive cardiomyocytes at 7 dpi and increased the expression of the epicardial marker raldh2 at 7 dpi. Additionally, cardiac function measured with echocardiography recovered slightly more rapidly after inhibition of let-7c. These results reveal a beneficial role of let-7c inhibition in adult zebrafish heart regeneration.


2019 ◽  
Vol 125 (Suppl_1) ◽  
Author(s):  
Joseph A Goldman ◽  
Ariel Bazzini ◽  
Antonio Giraldez ◽  
Kenneth Poss

Nature ◽  
2013 ◽  
Vol 498 (7455) ◽  
pp. 497-501 ◽  
Author(s):  
Ruilin Zhang ◽  
Peidong Han ◽  
Hongbo Yang ◽  
Kunfu Ouyang ◽  
Derek Lee ◽  
...  

2015 ◽  
Vol 309 (8) ◽  
pp. H1237-H1250 ◽  
Author(s):  
Marina Leone ◽  
Ajit Magadum ◽  
Felix B. Engel

The newt and the zebrafish have the ability to regenerate many of their tissues and organs including the heart. Thus, a major goal in experimental medicine is to elucidate the molecular mechanisms underlying the regenerative capacity of these species. A wide variety of experiments have demonstrated that naturally occurring heart regeneration relies on cardiomyocyte proliferation. Thus, major efforts have been invested to induce proliferation of mammalian cardiomyocytes in order to improve cardiac function after injury or to protect the heart from further functional deterioration. In this review, we describe and analyze methods currently used to evaluate cardiomyocyte proliferation. In addition, we summarize the literature on naturally occurring heart regeneration. Our analysis highlights that newt and zebrafish heart regeneration relies on factors that are also utilized in cardiomyocyte proliferation during mammalian fetal development. Most of these factors have, however, failed to induce adult mammalian cardiomyocyte proliferation. Finally, our analysis of mammalian neonatal heart regeneration indicates experiments that could resolve conflicting results in the literature, such as binucleation assays and clonal analysis. Collectively, cardiac regeneration based on cardiomyocyte proliferation is a promising approach for improving adult human cardiac function after injury, but it is important to elucidate the mechanisms arresting mammalian cardiomyocyte proliferation after birth and to utilize better assays to determine formation of new muscle mass.


2018 ◽  
Author(s):  
Finn Bruton ◽  
Aryan Baghbadrani ◽  
Charlotte Buckley ◽  
Carl Tucker ◽  
Martin Denvir ◽  
...  

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