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YCl3 Promotes Neuronal Cell Death by Inducing Apoptotic Pathways in Rats
Yechun Ding1, Yuantong Tian1, Zhaoyi Zeng1
1College of Pharmacy, Gannan Medical University, Ganzhou 341000, China.
Biomed Research International
|March 23, 2017
Summary
Yttrium (Y) exposure in rats induced neuronal cell death. This rare earth element (REE) pollutant promotes apoptosis by altering key protein levels, highlighting its cytotoxicity.
Area of Science:
- Environmental toxicology
- Neuroscience
- Cell biology
Background:
- Rare earth elements (REEs) are environmental pollutants with potential human health risks.
- Yttrium (Y) is an REE, and its specific toxicological effects on neuronal cells require investigation.
Purpose of the Study:
- To investigate the cytotoxicity of yttrium chloride (YCl3) on neuronal cells.
- To elucidate the molecular mechanisms underlying YCl3-induced neuronal cell death.
Main Methods:
- A 6-month in vivo study using rats with ad libitum access to YCl3-containing water.
- Analysis of mRNA and protein levels of apoptosis-related factors (Bax, Bcl-2, caspase-3, XIAP, Cyto c, DAPK).
Main Results:
- YCl3 exposure significantly promoted neuronal cell apoptosis.
- Upregulation of proapoptotic factors (Bax, caspase-3, Cyto c, DAPK) at both mRNA and protein levels.
- Downregulation of antiapoptotic factors (Bcl-2, XIAP) at both mRNA and protein levels.
Conclusions:
- Yttrium chloride exhibits significant cytotoxicity towards neuronal cells.
- YCl3 induces neuronal cell death through the activation of intrinsic and extrinsic apoptotic pathways.
- These findings underscore the neurotoxic potential of yttrium as an environmental pollutant.
