Abstract
This report describes the discovery and initial characterization of the first positive allosteric modulator of muscarinic acetylcholine receptor subtype 5 (mAChR5 or M5). Functional HTS, identified VU0119498, which displayed micromolar potencies for potentiation of acetylcholine at M1, M3, and M5 receptors in cell-based Ca(2+) mobilization assays. Subsequent optimization led to the discovery of VU0238429, which possessed an EC(50) of approximately 1.16 microM at M5 with >30-fold selectivity versus M1 and M3, with no M2 or M4 potentiator activity.
Original language | English |
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Journal | Journal of Medicinal Chemistry |
Volume | 52 |
Issue number | 11 |
Pages (from-to) | 3445-8 |
Number of pages | 4 |
ISSN | 0022-2623 |
DOIs | |
Publication status | Published - 11 Jun 2009 |
Externally published | Yes |
Keywords
- Allosteric Regulation/physiology
- Animals
- CHO Cells
- Cricetinae
- Cricetulus
- Isatin/analogs & derivatives
- Mice
- Receptor, Muscarinic M5/drug effects