Title
A Novel In Vivo Model to Study Impaired Tissue Regeneration Mediated by Cigarette Smoke
Date Issued
01 December 2018
Access level
open access
Resource Type
journal article
Author(s)
Chávez M.
Miranda M.
Aedo G.
Allende M.
Egaña J.
Universidad de Chile
Publisher(s)
Nature Publishing Group
Abstract
Cigarette smoke is associated with several pathologies including chronic respiratory diseases and cancer. In addition, exposure to cigarette smoke is correlated with impaired wound healing, where a significant decrease in the regenerative capacity of smokers is well documented and broadly considered a negative risk factor after trauma or surgery. So far, some in vitro and in vivo models have been described to study how exposure to cigarette smoke diminishes the regenerative potential in different organisms. However, although useful, many of these models are difficult and expensive to implement and do not allow high-throughput screening approaches. In order to establish a reliable and accessible model, we have evaluated the effects of cigarette smoke extract (CSE) on zebrafish development and regeneration. In this work, zebrafish embryos and larvae were exposed to low doses of aqueous CSE showing severe developmental abnormalities in a dose-dependent manner. Furthermore, when adult zebrafish were subjected to caudal fin amputation, we observed a significant decrease in the regenerative capacity of animals exposed to CSE. The effect was exacerbated in male and aged fish compared to female or young organisms. The establishment of a zebrafish model to assess the consequences of cigarette smoke and its effects on animal physiology could provide a new tool to study the underlying mechanisms involved in impaired tissue regeneration, and aid the development of novel approaches to treat complications associated with cigarette smoke toxicity.
Volume
8
Issue
1
Language
English
OCDE Knowledge area
Medicina clínica Ingeniería, Tecnología
Scopus EID
2-s2.0-85050638568
PubMed ID
Source
Scientific Reports
ISSN of the container
20452322
Sponsor(s)
The authors would like to thank Michelle McLuckie from the University of Zurich for her helpful support and critical review of the manuscript. This work was supported by Comision Nacional de Ciencia y Tecnologia (CONICYT), Chile: FONDECYT 1160270 (to JTE), FONDAP 15090007 (to MLA), and FONDECYT 3160086 (to MNC).
Sources of information: Directorio de Producción Científica Scopus