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Current Topics in Medicinal Chemistry

Editor-in-Chief

ISSN (Print): 1568-0266
ISSN (Online): 1873-4294

Design, Synthesis and Biological Evaluation of Ligands Selective for the Melanocortin-3 Receptor

Author(s): Matthew M. Dedek, Devendra Trivedi, Alexander V. Mayorov, James P. Cain, Minying Cai and Victor J. Hruby

Volume 7, Issue 11, 2007

Page: [1085 - 1097] Pages: 13

DOI: 10.2174/156802607780906654

Price: $65

Abstract

The processed products of the proopiomelanocortin gene (ACTH, α-MSH, β-MSH, γ-MSH, etc.) interact with five melanocortin receptors, the MC1R, MC2R, MC3R, MC4R, and MC5R to modulate and control many important biological functions crucial for good health both peripherally (as hormones) and centrally (as neurotransmitters). Pivotal biological functions include pigmentation, adrenal function, response to stress, fear/flight, energy homeostasis, feeding behavior, sexual function and motivation, pain, immune response, and many others, and are believed to be involved in many disease states including pigmentary disorders, adrenal disorders, obesity, anorexia, prolonged and neuropathic pain, inflammatory response, etc. The melanocortin-3 receptor (MC3R) is found primarily in the brain and spinal cord and also in the periphery, and its biological functions are still not well understood. Here we review some of the biological functions attributed to the MC3R, and then examine in more detail efforts to design and synthesize ligands that are potent and selective for the MC3R, which might help resolve the many questions still remaining about its function. Though some progress has been made, there is still much to be done in this critical area.

Keywords: g protein-coupled receptors, mcr signaling, agouti related protein, proopiomelanocortin, melanotropin peptide analogues


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