摘要:
The present invention provides transgenic mice deficient in corticotropin releasing factor receptor 2 (CRFR2). Mice deficient for CRFR1 exhibit decreased anxiety-like behavior and a decreased stress response. In contrast, CRFR2 null mutant mice are hypersensitive to stress and display increased anxiety-like behavior. These mice are useful for the study of anxiety, depression, and the physiology of the HPA axis. CRFR2 null mutant mice also exhibit increased angiogenesis in all tissues examined. Thus, CRFR2 antagonists may be used to stimulate angiogenesis for the treatment of various conditions. In contrast, CRFR2 agonists may be used to inhibit angiogenesis. A combination of urocortin and bFGF was observed to stimulate rapid hair growth. The CRFR2 mutant mice are also useful for the study of the effects of CRFR2 deficiency on homeostatic responses to stress, including a high-fat diet, repeated cold stress, and glucose and insulin challenges. The mutant mice to such stresses enable methods to screen compounds for effects on homeostasis, which are useful in screening compounds to provide treatments for pathological conditions related to the regulation of homeostasis, including obesity and type 2 diabetes.
摘要:
An object of the present invention is to provide a remedy for dysfunction of central monoamine pathway, a method for screening a PTPnull inhibitor or activator, which is useful as a remedy for gastric ulcer caused by Helicobacter pylori or pleiotrophin which is a heparin-binding secretory protein, and a non-human model animal being hyposensitive to a stimulant drug, VacA which is a toxin of Helicobacter pylori, or pleiotrophin by utilizing the physiological function of PTPnull. After administering a subject material to PTPnull knockout mice and wild-type mice, PTPnull activity in the PTPnull knockout mice and the wild-type mice is compared and evaluated to screen a PTPnull inhibitor or activator. Examples of the comparison and the evaluation of the PTPnull activity include the comparison and the evaluation of the function of central monoamine pathway such as changes in the level of central monoamine metabolism, sensitivity to a stimulant drug, the presence of dysfunction of mesolimbic dopamine pathway, level of acclimation to new circumstances, or stress-responsiveness, and the comparison and the evaluation of the level of binding to VacA, a toxin of Helicobacter pylori, or pleiotrophin.
摘要:
The invention provides a mutant non-human mammal having a disrupted SCA2 gene, in particular, a mutant mouse having a disrupted SCA2 gene. The invention also provides methods of identifying a therapeutic agent for use in treating obesity or memory impairment by administering a compound to the mutant non-human mammal having a disrupted SCA2 gene and screening said mutant non-human mammal for reduced obesity, thereby identifying a therapeutic agent for use in treating obesity.
摘要:
The present invention relates to transgenic animals, as well as compositions and methods relating to the characterization of gene function. Specifically, the present invention provides transgenic mice comprising mutations in an FPR-RS 4 gene. Such transgenic mice are useful as models for disease and for identifying agents that modulate gene expression and gene function, and as potential treatments for various disease states and disease conditions.
摘要:
The present invention relates to compositions and methods relating to the characterization and function of PNR. Specifically, the present invention provides transgenic animals comprising disruptions in a PNR gene and methods of treating diseases conditions, such as schizophrenia. The present invention further relates to agents that modulate PNR and methods of screening for agents that modulate PNR for the treatment of diseases and conditions such as schizophrenia.
摘要:
The present invention provides a transgenic non-human animal and method for using the same in evaluating a therapeutic agent for use in the treatment of Schizophrenia. More specifically, the invention is directed to a transgenic non-human animal which is incapable of expressing functional EDG2 protein. A theraupeutic agent is administered to the transgenic non-human animal incapable of expressing functional EDG2 protein and the effect of the agent on the animal is evaluated.
摘要:
To provide a an animal with schizophrenic sensorimotor and behavioral abnormalities, a specific protein factor inhibiting development of brain function is administrated to a juvenile animal in the stage of its development and an animal exhibiting sensorimotor and behavioral abnormalities is prepared. As the sensorimotor and behavioral abnormalities observed in the animal of the present invention is very similar to schizophrenia, the animal is useful for development of an anti-schizophrenic medicine and a diagnostic agent for schizophrenia.
摘要:
The present invention relates to compositions and methods relating to the characterization and function of CYT28. Specifically, the present invention provides transgenic animals comprising disruptions in a CYT28 gene and methods of treating diseases conditions, such as pain. The present invention further relates to agents that modulate CYT28 and methods of screening for agents that modulate CYT28 for the treatment of diseases and conditions such as pain.
摘要:
In general, the invention provides methods for identifying genes involved in neurodegeneration and therapeutics for treating animals with a neurodegenerative disease. Methods and kits for the detection of compounds which enhance neuroprotection and diagnostic kits for the detection of neurodegenerative diseases are also a part of the invention.
摘要:
The present invention relates to transgenic animals, as well as compositions and methods relating to the characterization of gene function. Specifically, the present invention provides transgenic mice comprising mutations in a MSK2 gene. Such transgenic mice are useful as models for disease and for identifying agents that modulate gene expression and gene function, and as potential treatments for various disease states and disease conditions.