|ZFIN ID: ZDB-PUB-101101-9|
Effects of the protein kinase inhibitor PKC412 on gene expression and link to physiological effects in zebrafish Danio rerio eleuthero-embryos
Oggier, D.M., Lenard, A., Küry, M., Höger, B., Affolter, M., and Fent, K.
|Source:||Toxicological sciences : an official journal of the Society of Toxicology 119(1): 104-115 (Journal)|
|Registered Authors:||Affolter, Markus|
|Keywords:||PKC412, Danio rerio, transgenic zebrafish, microarray, angiogenesis, apoptosis|
|PubMed:||20980353 Full text @ Toxicol. Sci.|
Oggier, D.M., Lenard, A., Küry, M., Höger, B., Affolter, M., and Fent, K. (2011) Effects of the protein kinase inhibitor PKC412 on gene expression and link to physiological effects in zebrafish Danio rerio eleuthero-embryos. Toxicological sciences : an official journal of the Society of Toxicology. 119(1):104-115.
ABSTRACTTo identify molecular effects of the antineoplastic agent PKC412 (Midostaurin), we applied gene expression profiling in zebrafish using whole genome microarrays. Behavioral, developmental and physiological effects were investigated in order to analyze for correlations between altered gene-expression profiles with effects on development and physiology. Zebrafish blastula-stage embryos were exposed for 6 days post fertilization (dpf) to nominal levels of 2 μg/L and 40 μg/L PKC412. Among the 259 and 511 altered transcripts at both concentrations, respectively, the expressions of genes involved in the circadian rhythm were further investigated. Alteration of swimming behavior was not observed. Pathways of interest affected by PKC412 were angiogenesis, apoptosis, DNA damage response and response to oxidative stress. Angiogenesis was analyzed in double transgenic zebrafish embryos Tg(fli1a:EGFP)y1;Tg(gata1:dsRed)sd2; no major defects were induced by PKC412 treatment at both concentrations. Apoptosis occurred in olfactory placodes of embryos exposed to 40 μg/L, and DNA damage was induced at both PKC412 concentrations. However, there were no significant effects on reactive oxygen species formation. This study leads to the conclusion that PKC412-induced alterations of gene transcripts are partly paralleled by physiological effects at high, but not at low PKC412 concentrations expected to be of environmental relevance.