Cadmium modulates the mRNA expression and activity of glutathione S-transferase in the monogonont Rotifer Brachionus koreanus
Cadmium has adverse effects on aquatic organisms. Here, we measured the ROS level, total GSH contents and total GST activity after exposure to Cd. In addition, the mRNA expression of four GST isoforms was investigated in response to Cd using real-time RT-PCR in the monogonant rotifer, Brachionus kor...
Saved in:
Published in | Toxicology and environmental health sciences Vol. 7; no. 3; pp. 217 - 223 |
---|---|
Main Authors | , , , |
Format | Journal Article |
Language | English |
Published |
Seoul
Korean Society of Environmental Risk Assessment and Health Science
01.09.2015
|
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | Cadmium has adverse effects on aquatic organisms. Here, we measured the ROS level, total GSH contents and total GST activity after exposure to Cd. In addition, the mRNA expression of four GST isoforms was investigated in response to Cd using real-time RT-PCR in the monogonant rotifer,
Brachionus koreanus
. As results, intracellular ROS level was elevated, total GSH content was declined, and GST activity was significantly elevated in Cd-exposed group, indicating that Cd can induce oxidative stress by producing ROS, and GSH and GST may be involved in cellular protection against Cd-induced toxicity. After exposure to Cd, mRNA expression of
Bk-GST
isoforms was differently modulated. In particular,
Bk-GST-omega
mRNA level was highly sensitive to Cd exposure, indicating that this isoform play a key role in protective responses to Cd in this species and would be useful as a molecular biomarker for monitoring of heavy metal toxicity in aquatic environment. |
---|---|
ISSN: | 2005-9752 2233-7784 |
DOI: | 10.1007/s13530-015-0241-1 |