Past, present and future of cocaine- and amphetamine-regulated transcript peptide

Area of Science:

• Neuroscience
• Molecular Biology
• Pharmacology

Background:

• The cocaine- and amphetamine-regulated transcript (CART) peptide, known since 1981, plays roles in ingestive and reward behaviors.
• Despite its known functions, the CART peptide's therapeutic potential was limited by the lack of an identified receptor.
• Previous research suggested CART acted via a G protein-coupled receptor (GPCR), but its identity remained elusive.

Purpose of the Study:

• To identify the specific G protein-coupled receptor (GPCR) for the CART peptide.
• To elucidate the role of the CART peptide-GPCR interaction in physiological processes.
• To explore the therapeutic potential of targeting the CART peptide-receptor axis.

Main Methods:

• Utilized molecular biology techniques to identify the CART peptide receptor.
• Investigated the interaction between CART peptide and potential GPCR candidates.
• Validated the identified receptor through various experimental approaches.

Main Results:

• Identified GPR160 as the previously orphaned receptor for the CART peptide.
• Confirmed the interaction between CART peptide and GPR160.
• Established GPR160 as a key mediator of CART peptide's actions.

Conclusions:

• The identification of GPR160 as the CART peptide receptor opens new avenues for research.
• This discovery is expected to revitalize interest in CART peptide and its therapeutic applications.
• Targeting the GPR160 receptor presents a promising strategy for developing novel pharmacotherapies.