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Investigation of receptor-activated Ca^<2+>-permeable channels in smooth muscle cells

Investigation of receptor-activated Ca^<2+>-permeable channels in smooth muscle cells
平滑肌细胞中受体激活的Ca^2-通透性通道的研究
批准号:
13670691
负责人:
NAKAJIMA Toshiaki
金额:
$1.6万
依托单位:
依托单位国家:
日本
项目类别:
Grant-in-Aid for Scientific Research (C)
财政年份:
2001
资助国家:
日本
项目状态:
已结题
起止时间:
2001 至 2002

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中文摘要
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英文摘要
The contractile agonists such as endothelin-1 and vasopressin increase Ca^<2+> influx via several receptor-activated Ca^<2+> channels (Ca^<2+>-release-activated Ca^<2+> channel (CRAC) and Ca^<2+> permeable nonselective cation channels (I_<CAT>)). The analysis of RT-PCR showed the expression of transient receptor potential (TRP1,2,4) and TRP6. The latter may be related to I_<CAT>, and the former may be related to CRAC. Diacylglycerol produced from the activation of PLC, but not IP_3 and protein kinase C, may be involved in the activation of I_<CAT>. Similar results were obtained in human bronchial smooth muscle cells (Am J Respir Cell Mol Biol, 2000 ; 2002). In addition, we have reported that I_<CAT> plays an important role in forming membrane potential in rabbit coronary arterial cells, and lysophosphatidylcholine (LPC) further activated I_<CAT>. Thus, it is likely that I_<CAT> may play a role in regulating smooth muscle tone under the pathophysiological conditions.
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Y.Okuda et al.: "Acute gliclazide administration enhances glucose and ketone body utilization in the perfused hind limb of normal and streptozotocin-diabetic rats"Life Sciences. 71. 647-654 (2002)
Y.Okuda 等人:“急性格列齐特给药可增强正常大鼠和链脲佐菌素糖尿病大鼠灌注后肢的葡萄糖和酮体利用”生命科学。
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通讯作者:
K.Terasawa, T.Nakajima et al.: "Nonselective cation currents regulate membrane potential of rabbit coronary arterial cell : Modulation by lysophosphatidylcholine"Circulation. 106. 3111-3119 (2002)
K.Terasawa、T.Nakajima 等人:“非选择性阳离子电流调节兔冠状动脉细胞的膜电位:溶血磷脂酰胆碱的调节”循环。
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通讯作者:
K Terasawa, T Nakgawa et al.: "Nonselective cation currents regulate membrane potential of rabbit coronary arterial cell: modulation by lysophosphatidylcholine"Circulation. 106. 3111-3119 (2002)
K Terasawa、T Nakkawa 等人:“非选择性阳离子电流调节兔冠状动脉细胞的膜电位:溶血磷脂酰胆碱的调节”循环。
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T.Kawada et al.: "Rescue of hereditary form of dilated cardiomyopathy by rAAV-mediated somatic gene therapy"Proc. Natl Acad Sci USA. 99. 901-906 (2002)
T.Kawada 等人:“通过 rAAV 介导的体细胞基因疗法挽救遗传性扩张型心肌病”Proc。
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