G Protein-Coupled Receptors in cancer: biochemical interactions and drug design
Yves Audigier1, François-Xavier Picault, Carline Chaves-Almagro
1Cancer Research Center of Toulouse, INSERM U1037-Université Paul Sabatier Toulouse III, Toulouse, France.
Abstract:
G Protein-Coupled Receptors (GPCRs) share the same topology made of seven-transmembrane segments and represent the largest family of membrane receptors. Initially associated with signal transduction in differentiated cells, GPCRs and heterotrimeric G proteins were shown to behave as proto-oncogenes whose overexpression or activating mutations confer transforming properties. The first part of this review focuses on the link between biochemical interactions of a GPCR with other receptors, such as dimerization or multiprotein complexes, and their oncogenic properties. Alteration of these interactions or deregulation of transduction cascades can promote uncontrolled cell proliferation or cell transformation that leads to tumorigenicity and malignancy. The second part concerns the design of drugs specifically targeting these complex interactions and their promise in cancer therapy.
Insights
G Protein-Coupled Receptors (GPCRs) can act as proto-oncogenes, driving cancer through altered interactions and signaling. Targeting these complex GPCR interactions offers promising new avenues for cancer therapy development.
Area of Science:
- Molecular Biology
- Oncology
- Pharmacology
Background:
- G Protein-Coupled Receptors (GPCRs) are the largest membrane receptor family, known for signal transduction.
- GPCRs and heterotrimeric G proteins can function as proto-oncogenes, promoting cell transformation.
- Overexpression or activating mutations in GPCRs confer oncogenic properties.
Purpose of the Study:
- To review the link between GPCR biochemical interactions and oncogenic properties.
- To explore the potential of targeting GPCR interactions for cancer therapy.
Main Methods:
- Review of literature focusing on GPCRs, signal transduction, and cancer biology.
- Analysis of GPCR dimerization and multiprotein complex formation in oncogenesis.
- Examination of drug design strategies targeting GPCR interactions.
Main Results:
- Altered GPCR interactions (e.g., dimerization, complex formation) contribute to uncontrolled cell proliferation and malignancy.
- Deregulation of GPCR-mediated transduction cascades promotes tumorigenicity.
- Targeting these complex GPCR interactions shows promise for novel cancer therapeutics.
Conclusions:
- GPCRs play a significant role in cancer development through aberrant signaling and interactions.
- Drug design strategies focused on these complex interactions represent a promising frontier in oncology.
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