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Experimental Protocol for Detecting Mitochondrial Function in Hepatocytes Exposed to Organochlorine Pesticides
Published on: September 16, 2020
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β-Hexachlorocyclohexane: A Small Molecule with a Big Impact on Human Cellular Biochemistry
Elisabetta Rubini1,2, Giuliano Paglia1, David Cannella2
1Department of Biochemical Science "A. Rossi Fanelli", Faculty of Pharmacy and Medicine, Sapienza University of Rome, P.le Aldo Moro 5, 00185 Rome, Italy.
Biomedicines
|November 19, 2020
Summary
Beta-hexachlorocyclohexane (β-HCH), a hazardous organochlorine pesticide, acts as an endocrine disruptor and activates AhR signaling. This leads to oxidative stress, metabolic shifts, and DNA damage, revealing its complex molecular actions.
Area of Science:
- Environmental Toxicology
- Molecular Biology
- Biochemistry
Background:
- Organochlorine pesticides (OCPs) are harmful environmental contaminants, with beta-hexachlorocyclohexane (β-HCH) being a poorly understood, hazardous isomer.
- Understanding β-HCH's molecular mechanisms is crucial for assessing its health risks.
Purpose of the Study:
- To elucidate the molecular mechanisms of β-HCH toxicity using cell line models.
- To investigate β-HCH's effects on endocrine disruption, AhR signaling, redox homeostasis, and cellular metabolism.
Main Methods:
- Utilized LNCaP and HepG2 cell lines for experimental models.
- Employed immunoblot, immunofluorescence, and RT-qPCR to analyze biomolecule expression and distribution.
- Monitored redox homeostasis and cellular bioenergetics.
Main Results:
- β-HCH acts as an endocrine-disrupting chemical and activates the Aryl hydrocarbon Receptor (AhR) signaling pathway.
- Promotes oxidative stress and shifts cellular metabolism towards aerobic glycolysis.
- Induces DNA damage via H2AX phosphorylation.
Conclusions:
- β-HCH exhibits multifaceted toxicity mechanisms, including endocrine disruption, AhR activation, oxidative stress induction, and DNA damage.
- These findings contribute to the biochemical profile of β-HCH and highlight its significant health concerns.
Keywords:
DNA damagearyl hydrocarbon receptorcancerendocrine disrupting chemicalenergy metabolismenvironmental pollutionorganochlorine pesticidesoxidative stressβ-hexachlorocyclohexaneMore Related Videos
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