Melatonin alleviates β-zearalenol and HT-2 toxin-induced apoptosis and oxidative stress in bovine ovarian granulosa cells

  • Environ Toxicol Pharmacol. 2019 May;68:52-60. doi: 10.1016/j.etap.2019.03.005.
Fangxiao Yang  1 ,  Lian Li  1 ,  Kunlin Chen  1 ,  Chengmin Li  1 ,  Yiru Wang  1 ,  Genlin Wang  2
Affiliations
  • 1. College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China.
  • 2. College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China. Electronic address: [email protected].
PMID: 30870695 DOI: 10.1016/j.etap.2019.03.005
Abstract

β-zearalenol (β-zol) and HT-2 are mycotoxins which cause Apoptosis and oxidative stress in mammalian reproductive cells. Melatonin is an endogenous antioxidant involved in Apoptosis and oxidative stress-related activities. This study investigated the effects of β-zol and HT-2 on bovine ovarian granulosa cells (BGCs), and how melatonin may counteract these effects. β-zol and HT-2 inhibited cell proliferation in a dose-dependent manner, and induced Apoptosis of BGCs. They also yielded upregulation of the apoptosis-related genes Bax/Bcl-2 and Caspase3 and phosphorylation of p38MAPK. Increases in intracellular ROS were observed along with higher levels of mRNA anti-oxidation markers SOD1, SOD2, and CAT. SOD1, SOD2, malonaldehyde (MDA), and Glutathione Peroxidase (GSH-px) activities increased, as did the levels of SOD1 and SOD2 proteins. All of these effects were reduced or entirely attenuated in BGCs pre-treated with melatonin. Our results demonstrate that melatonin has protective effects against mycotoxin-induced Apoptosis and oxidative stress in BGCs.

Keywords
Alleviation effect; Apoptosis; HT-2 toxin; Melatonin; Oxidative stress; β-zearalenol.
Products