PUBLICATION
Macrolides induce severe cardiotoxicity and developmental toxicity in zebrafish embryos
- Authors
- Yan, Z., Huang, X., Xie, Y., Song, M., Zhu, K., Ding, S.
- ID
- ZDB-PUB-181013-1
- Date
- 2019
- Source
- The Science of the total environment 649: 1414-1421 (Journal)
- Registered Authors
- Keywords
- Apoptosis, Cardiotoxicity, Developmental toxicity, Macrolides, Tilmicosin
- MeSH Terms
-
- Animals
- Anti-Bacterial Agents/toxicity
- Apoptosis/drug effects
- Cardiotoxicity/etiology
- Cardiotoxicity/physiopathology*
- Embryo, Nonmammalian/drug effects*
- Macrolides/toxicity*
- Oxidative Stress/drug effects
- Water Pollutants, Chemical/toxicity*
- Zebrafish*
- PubMed
- 30308910 Full text @ Sci. Total Environ.
Citation
Yan, Z., Huang, X., Xie, Y., Song, M., Zhu, K., Ding, S. (2019) Macrolides induce severe cardiotoxicity and developmental toxicity in zebrafish embryos. The Science of the total environment. 649:1414-1421.
Abstract
Macrolide antibiotics (MALs) are widely used for both human and animal health. Most MALs and their metabolites transfer into aquatic organisms and environment resulting in violent consequences. Previous studies show that MALs cause cardiotoxicity in humans and mammals. However, the potential risk of these chemicals in aquatic organisms remains unclear. Here, we used zebrafish embryos as a model to evaluate the toxicity of MALs. Zebrafish embryos were exposed to four typical MALs including azithromycin (AZM), clarithromycin (CLR), tilmicosin (TMS) and tylosin (TYL) to study their cardiotoxicity. The heart rate of zebrafish embryos showed similar biphasic distribution in the presence of four MALs at 2 days post-fertilization (dpf). The heart rate increased significantly at low levels of MALs while decreased obviously at high levels. Subsequently, TMS was chose to study its acute toxicity and developmental toxicity, which caused pericardial edema and spinal curvature in zebrafish embryos at 4 dpf. Furthermore, we found that TMS triggered oxidative stress, with decreased SOD activities and increased MDA contents. Lastly, apoptosis was observed in zebrafish embryos under TMS treatment, with up-regulation of apoptosis associated genes such as p53, bcl 2, bax, caspase 3 and caspase 9, confirmed by increased protein expression based on Western blot analysis. Taken together, these data indicate that MALs can cause serious toxicity in the development of zebrafish. Great caution should be taken due to the huge consumption of MALs for food animal production and treatments with TMS for infections in aquaculture.
Genes / Markers
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Orthology
Engineered Foreign Genes
Mapping