Chemistry and Biology of Thyrotropin-Releasing Hormone (TRH) and its Analogs

Author(s): Vikramdeep Monga, Chhuttan L. Meena, Navneet Kaur, Rahul Jain

Journal Name: Current Medicinal Chemistry

Volume 15 , Issue 26 , 2008

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Thyrotropin-releasing hormone (TRH), a hypothalamic orally active neuropeptide, has been manifested in a wide range of biological responses. Besides its central role in regulating the pituitary-thyroid axis by simulating the release of thyrotropin, TRH has considerable influence on the activity of a number of neurobiological systems. Due to the therapeutic potential of TRH to treat several CNS maladies, the development of CNS-selective and metabolically stable TRH analogs is an area of interest. TRH is known to elicit its biological response through two G-protein coupled receptors for TRH (namely, TRH-R1 and TRH-R2). The distinct distribution of TRH receptors in tissues has provided opportunity to discover receptor subtype-specific analogs, which would demonstrate high CNS activities, and are completely free of hormonal activities. In this review, an in-depth analysis of the chemistry and biology of TRH and its analogs is provided. Recent discoveries of TRH-R2 selective analogs, TRH super agonists, metabolically stable TRH analogs, and targeted delivery of TRH analogs have been also discussed.

Keywords: Peptide, hormone, CNS, pituitary, receptors

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Article Details

Year: 2008
Page: [2718 - 2733]
Pages: 16
DOI: 10.2174/092986708786242912
Price: $65

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