Research Project
Grant-in-Aid for Scientific Research (C)
The study using metabotropic glutamate receptor subtype 1 (mGluR1) gene deficit (KO) mice and mGluR5 antagonist revealed that mGluR1 and mGluR5 are involved in excitatory afferent signal transmission from the bladder in control of lower urinary tract (LUT) function and that the mGluR phenotype has a sex difference in the LUT function. Moreover, another study showed that acid-sensing ion channels (ASICs) are associated with excitatory afferent signal transduction in acid-induced bladder hyperreflexia as well as normal bladder activity. The present studies show that mGluR1, mGluR5 and ASICs can be target molecules for development of pharmacotherapy of lower urinary tract dysfunction such as bladder overactivity and thus these results would contribute to ameliorating a quality of life of patients who suffer from such dysfunction and to improving social productivity.
膀胱過活動症状はヒトの日常生活の質と生産活動性を著しく低下させる。故に、その発症機構の解明と治療法の開発は、同症状による損失を回避する上で重要である。本研究は、膀胱からの興奮性求心性信号伝達に代謝型グルタミン酸受容体(mGluR)と酸感受性イオンチャネル(ASICs)が関与することを解明した。一方、このmGluR関与の程度には雌雄差があることも明らかにした。この結果は、標的分子の表現型に性差がある可能性を念頭に研究を実施するべきであることを示唆する。近年、医学研究において、遺伝子関連の表現型や薬物療法への反応性に性別を考慮することの重要性が提唱されており、本研究結果はそれに同調する。
All 2019 2018 2017 2016 Other
All Int'l Joint Research (9 results) Journal Article (13 results) (of which Int'l Joint Research: 12 results, Peer Reviewed: 13 results, Open Access: 11 results, Acknowledgement Compliant: 2 results) Presentation (15 results) (of which Int'l Joint Research: 13 results) Book (1 results)
International Journal of Impotence Research
Volume: 印刷中 Issue: 2 Pages: 186-194
10.1038/s41443-019-0137-8
Scientific Reports
Volume: 8 Issue: 1 Pages: 5699-5699
10.1038/s41598-018-23115-w
Journal of Clinical Investigation
Volume: 128 Issue: 5 Pages: 1772-1786
10.1172/jci97837
Neurourology and urodynamics
Volume: 37 Issue: 8 Pages: 2535-2543
10.1002/nau.23793
Neurourology and Urodynamics
Volume: 37 Issue: 3 Pages: 942-951
10.1002/nau.23400
Volume: 7 Issue: 1 Pages: 771-771
10.1038/s41598-017-00824-2
American Journal of Physiology Renal Physiology
Volume: 313 Issue: 3 Pages: F796-F804
10.1152/ajprenal.00097.2017
PLoS One
Volume: 12 Issue: 1 Pages: e0168234-e0168234
10.1371/journal.pone.0168234
International Neurourology Journal
Volume: 21 Issue: 1 Pages: 20-28
10.5213/inj.1732758.379
American Journal of Physiology Regulatory Integrative Comparative Physiology
Volume: 310 Issue: 8 Pages: R752-R758
10.1152/ajpregu.00450.2015
Volume: 6 Issue: 1 Pages: 29761-29761
10.1038/srep29761
Frontiers in Pharmacology
Volume: 7
10.3389/fphar.2016.00234
Volume: 36 Issue: 4 Pages: 1034-1038
10.1002/nau.23062