Hijacking GPCRs by viral pathogens and tumor

Area of Science:

• Molecular biology
• Virology
• Oncology

Background:

• G protein-coupled receptors (GPCRs) are crucial cell signaling molecules.
• Herpesviruses utilize diverse strategies, including expressing viral GPCRs, to manipulate host cells.
• Dysregulated GPCR signaling, via viral or cellular mutations, contributes to diseases and cancer.

Purpose of the Study:

• To explore the role of viral GPCRs in herpesvirus infections.
• To investigate the link between GPCR pathway mutations and human cancers.
• To identify GPCRs as potential therapeutic targets for viral diseases and oncogenesis.

Main Methods:

• Analysis of GPCR structure and function.
• Investigation of signaling pathway activation by viral and mutated cellular GPCRs.
• Review of clinical implications in immune-deficient individuals and cancer patients.

Main Results:

• Viral GPCRs exhibit unique properties activating diverse signaling pathways.
• Constitutive GPCR activation due to mutations drives cancer cell proliferation and survival.
• Herpesvirus infections involving GPCRs are linked to pathologies, especially in immune-deficient individuals.

Conclusions:

• Hijacked GPCR-mediated signaling is a common mechanism in viral infections and cancer.
• Viral and cellular GPCRs represent shared targets for therapeutic intervention.
• Targeting GPCRs holds promise for developing novel anti-viral and anti-cancer treatments.