Interleukin-1 receptor null mutant mice show decreased anxiety-like behavior and enhanced fear memory.
Interleukin-1 receptor null mutant mice show decreased anxiety-like behavior and enhanced fear memory.
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DOI:
10.1016/j.neulet.2009.03.068
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发表时间:
2009-05-29
影响因子:
2.5
通讯作者:
Duman RS
中科院分区:
文献类型:
--
作者:
Koo JW;Duman RS
IL-1β is a proinflammatory cytokine that contributes to psychological stress responses and has been implicated in various psychiatric disorders most notably depression. Preclinical studies also demonstrate that IL-1β modulates anxiety- and fear-related behaviors, although these findings are difficult to assess because IL-1β infusions influence locomotor activity and nociception. Here we demonstrate that IL-1RI null mice exhibit a behavioral phenotype consistent with a decrease in anxiety-related behaviors. This includes significant effects in the elevated plus maze, light–dark, and novelty-induced hypophagia tests compared to wild-type mice, with no differences in locomotor activity. With regard to fear conditioning, IL-1RI null mice showed more freezing in auditory and contextual fear conditioning tests, and there was no effect on pain sensitivity. Taken together, the results indicate that the IL-1β/IL-1RI signaling pathway induces anxiety-related behaviors and impairs fear memory.
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影响因子:
3.7
作者:
BLUTHE, RM;PAWLOWSKI, M;DANTZER, R
通讯作者:
DANTZER, R
影响因子:
3.6
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Picciotto, MR
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Maier, SF
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Swiergiel, AH