Title : Ahr2-dependence of PCB126 effects on the swim bladder in relation to expression of CYP1 and cox-2 genes in developing zebrafish.

Pub. Date : 2012 Dec 1

PMID : 23036320






4 Functional Relationships(s)
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1 Ahr2-dependence of PCB126 effects on the swim bladder in relation to expression of CYP1 and cox-2 genes in developing zebrafish. 3,4,5,3',4'-pentachlorobiphenyl aryl hydrocarbon receptor 2 Danio rerio
2 Both swim bladder and lung are developmental targets of persistent aryl hydrocarbon receptor (AHR(2)) agonists; in zebrafish (Danio rerio) the swim bladder fails to inflate with exposure to 3,3",4,4",5-pentachlorobiphenyl (PCB126). 3,4,5,3',4'-pentachlorobiphenyl aryl hydrocarbon receptor 2 Danio rerio
3 Ahr2-morpholino treatment rescued the effect of PCB126 (5 nM) on swim bladder inflation and blocked induction of CYP1A, cox-2a, and cox-2b. 3,4,5,3',4'-pentachlorobiphenyl aryl hydrocarbon receptor 2 Danio rerio
4 Our results indicate that PCB126 blocks swim bladder inflation via an Ahr2-mediated mechanism. 3,4,5,3',4'-pentachlorobiphenyl aryl hydrocarbon receptor 2 Danio rerio