Structure−Activity Relationship of Triazafluorenone Derivatives as Potent and Selective mGluR1 Antagonists
摘要:
SAR (structure -activity relationship) studies of triazafluorenone derivatives as potent mGIuR1 antagonists are described. The triazafluorenone derivatives are non-amino acid derivatives and noncompetitive mGluR1 antagonists that bind at a putative allosteric recognition site located within the seven-transmembrane domain of the receptor. These triazafluorenone derivatives are potent, selective, and systemically active mGluR1 antagonists. Compound 1n, for example, was a very potent mGIuR1 antagonist IC50 = 3 nM) and demonstrated full efficacy in various in vivo animal pain models.
Disclosed herein are α7β1 integrin modulatory agents and methods of using such to treat conditions associated with decreased α7β1 integrin expression or activity, including muscular dystrophy. In one example, methods for treating a subject with muscular dystrophy are disclosed. The methods include administering an effective amount of an α7β1 integrin modulatory agent to the subject with muscular dystrophy, wherein the α7β1 integrin modulatory agent increases α7β1 integrin expression or activity as compared to α7β1 integrin expression or activity prior to treatment, thereby treating the subject with muscular dystrophy. Also disclosed are methods of enhancing muscle regeneration, repair, or maintenance in a subject and methods of enhancing α7β1 integrin expression by use of the disclosed α7β1 integrin modulatory agents. Methods of prospectively preventing or reducing muscle injury or damage in a subject are also disclosed.