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    • 3. 发明申请
    • Mammals carrying functional single nucleotide polymorphisms in brain-specific tryptophan hydroxylase
    • 在脑特异性色氨酸羟化酶中携带功能性单核苷酸多态性的哺乳动物
    • US20080010692A1
    • 2008-01-10
    • US11825202
    • 2007-07-05
    • Marc CaronXiaodong ZhangMartin BeaulieuRaul GainetdinovTatyana Sotnikova
    • Marc CaronXiaodong ZhangMartin BeaulieuRaul GainetdinovTatyana Sotnikova
    • G01N33/00A01K67/00C12N5/00
    • A01K67/0276A01K2217/075A01K2227/105A01K2267/0356C12N9/0071C12N15/8509C12N2800/30
    • Recombinant or transgenic non-human mammals are described having a mutant tryptophan hydroxylase 2 (Tph2) gene resulting in altered synthesis of 5-hydroxytryptophan and serotonin in the brain. In some embodiments the mutant tryptophan hydroxylase 2 gene contains mouse R439H and/or P447R functional mutations, or their corresponding mutations in other species. Congenic non-human mammals having mutant tryptophan hydroxylase 2 genes are also provided. Methods of screening a compound for serotonergic activity or activity in treating a serotonergic neurotransmission dysregulation disorder are provided, which include administering a test compound to a recombinant non-human mammal and then detecting the presence or absence of serotonergic activity, or activity in treating a serotonergic neurotransmission dysregulation disorder, in the mammal. A cell such as a nerve cell (e.g., a central nervous system neuron) isolated from a transgenic or congenic mammal is also disclosed, along with cell cultures containing these cells. Such mammals and cells and cell cultures are useful in vitro for screening the activity of candidate compounds for their effect on serotonergic neurotransmission and for their activity in treating serotonergic neurotransmission dysregulation disorders.
    • 描述了具有突变色氨酸羟化酶2(Tph2)基因的重组或转基因非人哺乳动物,导致脑中5-羟色胺和5-羟色胺的合成改变。 在一些实施方案中,突变色氨酸羟化酶2基因含有小鼠R439H和/或P447R功能性突变或其他物种中相应的突变。 还提供了具有突变色氨酸羟化酶2基因的同种非人哺乳动物。 提供了筛选化合物用于治疗血清素能神经递质调节障碍的5-羟色胺能活性或活性的方法,其包括向重组非人哺乳动物施用测试化合物,然后检测血清素能活性的存在或不存在或治疗血清素能的活性 神经传递异常调节障碍。 还公开了从转基因或同基因哺乳动物分离的细胞例如分离自转基因或同种哺乳动物的神经细胞(例如中枢神经系统神经元)以及含有这些细胞的细胞培养物。 这样的哺乳动物和细胞和细胞培养物在体外可用于筛选候选化合物对5-羟色胺能神经传递的作用及其在治疗5-羟色胺能神经传递失调调节障碍中的活性。