論文 - 詳細
| RRC ID | 6046 |
|---|---|
| 著者 | Tsujimura A, Matsuki M, Takao K, Yamanishi K, Miyakawa T, Hashimoto-Gotoh T. |
| タイトル | Mice lacking the kf-1 gene exhibit increased anxiety- but not despair-like behavior. |
| ジャーナル | Front Behav Neurosci |
| Abstract |
KF-1 was originally identified as a protein encoded by human gene with increased expression in the cerebral cortex of a patient with Alzheimer's disease. In mouse brain, kf-1 mRNA is detected predominantly in the hippocampus and cerebellum, and kf-1 gene expression is elevated also in the frontal cortex of rats after chronic antidepressant treatments. KF-1 mediates E2-dependent ubiquitination and may modulate cellular protein levels as an E3 ubiquitin ligase, though its target proteins are not yet identified. To elucidate the role of kf-1 in the central nervous system, we generated kf-1 knockout mice by gene targeting, using Cre-lox recombination. The resulting kf-1(-/-) mice were normal and healthy in appearance. Behavioral analyses revealed that kf-1(-/-) mice showed significantly increased anxiety-like behavior compared with kf-1(+/+) littermates in the light/dark transition and elevated plus maze tests; however, no significant differences were observed in exploratory locomotion using the open field test or in behavioral despair using the forced swim and tail suspension tests. These observations suggest that KF-1 suppresses selectively anxiety under physiological conditions probably through modulating protein levels of its unknown target(s). Interestingly, kf-1(-/-) mice exhibited significantly increased prepulse inhibition, which is usually reduced in human schizophrenic patients. Thus, the kf-1(-/-) mice provide a novel animal model for elucidating molecular mechanisms of psychiatric diseases such as anxiety/depression, and may be useful for screening novel anxiolytic/antidepressant compounds. |
| 巻・号 | 2 |
| ページ | 4 |
| 公開日 | 2008-1-1 |
| DOI | 10.3389/neuro.08.004.2008 |
| PMID | 18958194 |
| PMC | PMC2567108 |
| IF | 2.512 |
| 引用数 | 23 |
| WOS 分野 | BEHAVIORAL SCIENCES NEUROSCIENCES |
| オルトメトリクス指標 |
オルトメトリクス指標項目
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| 最多言及媒体 | Patent(IFI CLAIMS) |
| 各媒体での言及数の合計 | 6 |
| 過去6か月間でのオルトメトリクス指標の変動値 | 0.0 |
| リソース情報 | |
| 実験動物マウス | RBRC01916 |