Open AccessMolecular Signaling Networks That Choreograph Epimorphic Fin Regeneration in Zebrafish – A Mini-Review
Author(s) -
Tamara Tal,
Jill A. Franzosa,
Robert L. Tanguay
Publication year - 2009
Publication title -
gerontology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.397
H-Index - 94
eISSN - 1423-0003
pISSN - 0304-324X
DOI - 10.1159/000259327
Subject(s) - blastema , regeneration (biology) , zebrafish , biology , wnt signaling pathway , fibroblast growth factor , microbiology and biotechnology , regenerative medicine , wound healing , anatomy , fish fin , signal transduction , fish <actinopterygii> , immunology , genetics , stem cell , gene , receptor , fishery
This short review provides a current synopsis of caudal fin regeneration in zebrafish with an emphasis on the molecular signaling networks that dictate epimorphic regeneration. At the outset, the fundamentals of caudal fin architecture and the stages of epimorphic regeneration are described. This is followed by a detailed look at the main networks implicated in fin regeneration, namely the Wnt, fibroblast growth factor, activin-betaA, retinoic acid and hedgehog signaling pathways. Throughout this mini-review, these molecular networks are examined through the lens of wound healing, blastema formation or regenerative outgrowth, three of the main stages of epimorphic regeneration. Next, the emerging role of noncoding RNAs as regulators of regeneration and mechanisms of regenerative termination are discussed. Finally, the implications for future research and the broader field of regenerative medicine are examined.