کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
2581868 | 1130210 | 2008 | 9 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Effects of cyclopenta[c]phenanthrene and its derivatives on zona radiata protein, ERα, and CYP1A mRNA expression in liver of rainbow trout (Oncorhynchus mykiss Walbaum) Effects of cyclopenta[c]phenanthrene and its derivatives on zona radiata protein, ERα, and CYP1A mRNA expression in liver of rainbow trout (Oncorhynchus mykiss Walbaum)](/preview/png/2581868.png)
Despite cyclopenta-fused polycyclic aromatic hydrocarbons (CP-PAHs) have been detected in the environment, the ability of CP-PAH to induce cellular and tissue responses remains poorly characterized. In this study, xenoestrogen-associated responses (mRNA levels of estrogen receptor α, ERα, and zona radiata protein, Zrp) and xenobiotic effects (CYP1A mRNA) have been investigated in liver of juvenile rainbow trout after short-term treatment (8 and 24 h) with following compounds administered singly: cyclopenta[c]phenanthrene (CP[c]Ph); its derivatives, 5A-CP[c]Ph; 5A6M-CP[c]Ph; 5A9M-CP[c]Ph; B[c]Ph, a structurally similar polycyclic aromatic hydrocarbon; B[a]P, a model CYP1A inducer; and zearalenone (ZEA), naturally occurring ligand for ER. The CYP1A mRNA expression after 24 h of exposure with CP[c]Ph or its derivatives, except 5A9M-CP[c]Ph, was 3–9-fold higher compared to controls (P < 0.05), but it was less than that caused by B[a]P (65-fold up regulation; P < 0.01). Moreover, neither of the CP-PAH compounds modulated liver ERα or Zrp mRNA levels as compared to effects associated with ZEA. Interestingly, a treatment with this ER-ligand, caused moderate but significant increase of CYP1A mRNA expression (about 2.5-fold; P < 0.05). The finding that ZEA is capable of acting as either estrogenic and xenobiotic compound, should be further explored in a more detailed and differently designed experiment.
Journal: Chemico-Biological Interactions - Volume 174, Issue 1, 10 July 2008, Pages 60–68