Effects of DON and DOM-1 on bovine ovarian theca cell function - Torabi, Mohammadali;Aminmarashi, Fatemeh
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The mycotoxin deoxynivalenol (DON) and its metabolite deepoxy-DOM-1 have significant effects on bovine ovarian theca cell function. The objective of this study was to identify different signaling pathways involved in the mechanism of action of DON and DOM-1 by mass spectrometry. Methods: bovine ovarian theca cells were harvested from adult cows independently of the stage of the estrous cycle, and were cultured at a density of 500000 viable cells in 1 ml McCoy's medium for 5 days. The cells were then treated on day 5 of culture with 1 ng/mL DON or DOM-1 for 30 minutes and total cell protein was…mehr

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Produktbeschreibung
The mycotoxin deoxynivalenol (DON) and its metabolite deepoxy-DOM-1 have significant effects on bovine ovarian theca cell function. The objective of this study was to identify different signaling pathways involved in the mechanism of action of DON and DOM-1 by mass spectrometry. Methods: bovine ovarian theca cells were harvested from adult cows independently of the stage of the estrous cycle, and were cultured at a density of 500000 viable cells in 1 ml McCoy's medium for 5 days. The cells were then treated on day 5 of culture with 1 ng/mL DON or DOM-1 for 30 minutes and total cell protein was collected for mass spectrometry. Results from mass spectrometry showed that both DON and DOM-1 induce simultaneous upregulation of ERK1/2, MAPK14 (p38alpha) and MAPK13 (p38delta). Mass spectrometry also indicated that 94 peptides such as GNGT1, EDN1 and YWHAB were upregulated. They mostly regulate cell proliferation pathways and are involved in biosynthesis of lipid and carbohydrates. Nevertheless, 255 peptides such as CALR3, PTGES3, RAD21, ACVR2B and TGFBR1 were downregulated whose activities are mainly activation or deactivation of apoptotic processes, and glucose and choline metabolism.
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Autorenporträt
I completed my master¿s degree at the Faculty of Veterinary Medicine at University of Montreal at the Center for Research in Reproduction and Fertility (CRRF) in May 2017. I am also interested in research.