Glutathione S-transferase: A versatile and dynamic enzyme

Area of Science:

• Biochemistry
• Molecular Biology
• Pharmacology

Background:

• Glutathione S-transferases (GSTs) are crucial enzymes involved in cellular detoxification and antioxidant defense.
• GSTs exist in various classes, including cytosolic, mitochondrial, and microsomal forms, each with distinct roles.
• Genetic variations (polymorphisms) in GST genes influence enzyme activity and individual susceptibility to environmental toxins and diseases.

Purpose of the Study:

• To review the diverse classes, functions, and genetic polymorphisms of GSTs.
• To explore the role of GSTs in cellular signaling, detoxification, and disease pathogenesis.
• To examine the therapeutic potential of GST inhibitors in treating human diseases, particularly cancer.

Main Methods:

• Literature review of scientific articles on glutathione S-transferases.
• Analysis of GST enzyme classes, functional roles, and genetic variations.
• Investigation of GSTs' involvement in cellular pathways and disease mechanisms.

Main Results:

• Identified major GST classes: cytosolic, mitochondrial, microsomal, and bacterial Fosfomycin resistance proteins.
• Demonstrated that GST genetic polymorphisms can alter enzyme activity, affecting individual vulnerability to xenobiotics.
• Highlighted GSTs' regulatory roles in cell signaling (e.g., S-Glutathionylation) and detoxification processes.
• Examined applications of bacterial GSTs and their potential in plant science.

Conclusions:

• Targeting specific GSTs, such as GSTP1-1, presents a promising therapeutic strategy for cancers and other proliferative diseases.
• GSTs are critical targets for drug development due to their roles in cancer cell growth, differentiation, and drug resistance.
• Understanding GST function and polymorphism is vital for personalized medicine and developing novel treatments.