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Current Drug Targets - CNS & Neurological Disorders


ISSN (Print): 1568-007X
ISSN (Online): 1568-007X

The Vasopressin V1b Receptor as a Therapeutic Target in Stress-related Disorders

Author(s): Guy Griebel, Jacques Simiand, Jeanne Stemmelin, Claudine Serradeil-Le Gal and Regis Steinberg

Volume 2 , Issue 3 , 2003

Page: [191 - 200] Pages: 10

DOI: 10.2174/1568007033482850

Price: $65


The complexity of the stress response would appear to provide multiple opportunities for intervention, but treatment strategies are often centered on the improvement of symptoms rather than attempting to “treat” the stress response. However, recent efforts have begun to focus on the development of pharmacological agents that can attenuate the stress response itself, rather than the symptoms associated with stress. Although CRF, which is the main regulator of the stress system, is the focus of current interest, there is an accumulating body of evidence suggesting that the vasopressinergic system may play an equal role in the regulation of the stress response, and that V1b receptor antagonists may be of potential therapeutic benefit. The availability of SSR149415, the first selective antagonist for the V1b receptor has allowed us to evaluate this hypothesis. SSR149415 is able to attenuate some but not all stress-related behaviors in rodents. While the antidepressant-like activity of the compound was comparable to that of reference antidepressants, the overall profile displayed in anxiety tests was different from that of classical anxiolytics, such as benzodiazepines. The latter were active in a wide range of anxiety models, whereas the V1b receptor antagonist showed clear-cut effects only in particularly stressful situations. It is important to note that SSR149415 is devoid of central depressant effects, even at high doses, and does not affect cognitive processes, suggesting a large therapeutic window. Altogether, these findings suggest that V1b receptor antagonists might be useful as a treatment for major depression and stress disorders that result from traumatic events.

Keywords: antidepressant, anxiety, anxiolytic, arginine vasopressin, depression, ssr149415, stress, receptor

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