Generating blood-flow-sensing-molecule-deficient mice and analysis of their physiological functions

血流传感分子缺陷小鼠的构建及其生理功能分析

基本信息

  • 批准号:
    16300149
  • 负责人:
  • 金额:
    $ 9.66万
  • 依托单位:
  • 依托单位国家:
    日本
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
  • 财政年份:
    2004
  • 资助国家:
    日本
  • 起止时间:
    2004 至 2006
  • 项目状态:
    已结题

项目摘要

The structure and function of blood vessels adapt to environmental changes, for example, physical development and exercise. This phenomenon is based on the ability of the endothelial cells (ECs) to sense and respond to blood flow; however, its mechanism remains unclear. Here we show that ATP-gated P2X4 ion channel, expressed on ECs, is a key player in the mechanism. P2X4-deficient mice do not exhibit normal EC responses to flow, such as Ca^<2+> influx and subsequent production of nitric oxide (NO), a potent vasodilator. Additionally, vessel dilation induced by acute increases in blood flow is markedly suppressed in P2X4-deficient mice. Furthermore, P2X4-deficient mice have higher blood pressure and excrete smaller amounts of NO products in their urine than wild-type mice. Moreover, no adaptive vascular remodeling, i.e., decreases in vessel size in response to chronic decrease in blood flow, is observed in the P2X4-deficient mice. Thus, endothelial P2X4 channels are critical to the flow-sensitive mechanisms that regulate blood pressure and vascular remodeling.
血管的结构和功能适应环境的变化,例如身体发育和锻炼。这种现象是基于内皮细胞 (EC) 感知和响应血流的能力;然而,其机制仍不清楚。在这里,我们表明 EC 上表达的 ATP 门控 P2X4 离子通道是该机制中的关键参与者。 P2X4缺陷的小鼠不表现出对血流的正常EC反应,例如Ca 2+ 流入和随后产生一氧化氮(NO),一种有效的血管舒张剂。此外,在 P2X4 缺陷小鼠中,血流量急剧增加引起的血管扩张受到显着抑制。此外,与野生型小鼠相比,P2X4 缺陷小鼠的血压较高,尿液中 NO 产物的排出量也较少。此外,在 P2X4 缺陷小鼠中没有观察到适应性血管重塑,即血管尺寸因血流量长期减少而减小。因此,内皮 P2X4 通道对于调节血压和血管重塑的血流敏感机制至关重要。

项目成果

期刊论文数量(18)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Differentiation from embryonic stem cells to vascular wall cells under in vitro pulsatile flow loading.
Impaired flow-dependent control of vascular tone and remodeling in P2X4-deficient mice
  • DOI:
    10.1038/nm1338
  • 发表时间:
    2006-01-01
  • 期刊:
  • 影响因子:
    82.9
  • 作者:
    Yamamoto, K;Sokabe, T;Ando, J
  • 通讯作者:
    Ando, J
Transcriptional regulations induced by shear stress
剪切应力诱导的转录调控
シェアストレスによる血管細胞の分化誘導
通过剪切应力诱导血管细胞分化
  • DOI:
  • 发表时间:
    2006
  • 期刊:
  • 影响因子:
    0
  • 作者:
    山本希美子;安藤譲二
  • 通讯作者:
    安藤譲二
マウスES細胞の血管細胞への分化の誘導と管腔形成に果たす流れずり応力の効果に関する研究
流动剪切应力对诱导小鼠ES细胞分化为血管细胞及管腔形成的影响研究
{{ item.title }}
{{ item.translation_title }}
  • DOI:
    {{ item.doi }}
  • 发表时间:
    {{ item.publish_year }}
  • 期刊:
  • 影响因子:
    {{ item.factor }}
  • 作者:
    {{ item.authors }}
  • 通讯作者:
    {{ item.author }}

数据更新时间:{{ journalArticles.updateTime }}

{{ item.title }}
  • 作者:
    {{ item.author }}

数据更新时间:{{ monograph.updateTime }}

{{ item.title }}
  • 作者:
    {{ item.author }}

数据更新时间:{{ sciAawards.updateTime }}

{{ item.title }}
  • 作者:
    {{ item.author }}

数据更新时间:{{ conferencePapers.updateTime }}

{{ item.title }}
  • 作者:
    {{ item.author }}

数据更新时间:{{ patent.updateTime }}

YAMAMOTO Kimiko其他文献

Factors affecting the subjective sleepiness of elderly caregivers
老年照顾者主观嗜睡的影响因素
  • DOI:
  • 发表时间:
    2020
  • 期刊:
  • 影响因子:
    0
  • 作者:
    YAMAMOTO Kimiko;HIRAKWA Miwako;AMANO Masami;OHMORI Chigusa;SATO Yukiko;SATO Tomoko;OHTA Junko;MATSUZAKI Saori;INOUE Yoshiyuki;TAKEUCHI Takahito;坂口京子
  • 通讯作者:
    坂口京子
Study of “Individuality” on Nursing Care Job
护理工作的“个性”研究
  • DOI:
    10.14391/ajhs.15.52
  • 发表时间:
    2018
  • 期刊:
  • 影响因子:
    0
  • 作者:
    YAMAMOTO Kimiko;HIRAKAWA Miwako;OMORI Chigusa;Sato Tomoko;AMANO Masami;SATO Yukiko;OTA Junko;MATSUZAKI Saori;INOUE Yoshiyuki;TAKEUCHI Takahito
  • 通讯作者:
    TAKEUCHI Takahito
Construct of “Individuality” Perceived by Nursing Care Workers:
护理人员感知的“个性”建构:
  • DOI:
    10.14391/ajhs.16.58
  • 发表时间:
    2019
  • 期刊:
  • 影响因子:
    0
  • 作者:
    YAMAMOTO Kimiko;HIRAKWA Miwako;AMANO Masami;OHMORI Chigusa;SATO Yukiko;SATO Tomoko;OHTA Junko;MATSUZAKI Saori;INOUE Yoshiyuki;TAKEUCHI Takahito
  • 通讯作者:
    TAKEUCHI Takahito
Effects of stress reduction in a simulated environment
模拟环境中的减压效果
  • DOI:
  • 发表时间:
    2023
  • 期刊:
  • 影响因子:
    0
  • 作者:
    YAMAMOTO Kimiko;HIRAKWA Miwako;AMANO Masami;OHMORI Chigusa;SATO Yukiko;SATO Tomoko;OHTA Junko;MATSUZAKI Saori;INOUE Yoshiyuki;TAKEUCHI Takahito;坂口京子;丸上 輝剛
  • 通讯作者:
    丸上 輝剛

YAMAMOTO Kimiko的其他文献

{{ item.title }}
{{ item.translation_title }}
  • DOI:
    {{ item.doi }}
  • 发表时间:
    {{ item.publish_year }}
  • 期刊:
  • 影响因子:
    {{ item.factor }}
  • 作者:
    {{ item.authors }}
  • 通讯作者:
    {{ item.author }}

{{ truncateString('YAMAMOTO Kimiko', 18)}}的其他基金

Cloning of LDL receptors responding to fluid shear stress
响应流体剪切应力的 LDL 受体克隆
  • 批准号:
    24650250
  • 财政年份:
    2012
  • 资助金额:
    $ 9.66万
  • 项目类别:
    Grant-in-Aid for Challenging Exploratory Research
Genomics of a diamondback moth and contribution to clarify the insecticide resistance mechanism
小菜蛾的基因组学及其对阐明杀虫剂抗性机制的贡献
  • 批准号:
    22380041
  • 财政年份:
    2010
  • 资助金额:
    $ 9.66万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Blood-flow-mediated mechanotransduction in vascular endothelial cells
血管内皮细胞中血流介导的机械转导
  • 批准号:
    22300150
  • 财政年份:
    2010
  • 资助金额:
    $ 9.66万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Shear-stress-induced molecular dynamics of endothelial cell membrane
剪切应力诱导的内皮细胞膜分子动力学
  • 批准号:
    19300155
  • 财政年份:
    2007
  • 资助金额:
    $ 9.66万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)

相似海外基金

Control of endothelial cell mechanics and blood vessel remodeling by blood flow
通过血流控制内皮细胞力学和血管重塑
  • 批准号:
    23K23887
  • 财政年份:
    2024
  • 资助金额:
    $ 9.66万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Development of a novel method for detailed evaluation of blood flow patterns in stented segments and assessment of their role in stent thrombosis
开发一种详细评估支架段血流模式及其在支架血栓形成中的作用的新方法
  • 批准号:
    MR/X009068/1
  • 财政年份:
    2024
  • 资助金额:
    $ 9.66万
  • 项目类别:
    Research Grant
Contribution of Endothelial Planar Cell Polarity pathways in Blood Flow Direction Sensing
内皮平面细胞极性通路在血流方向传感中的贡献
  • 批准号:
    10750690
  • 财政年份:
    2024
  • 资助金额:
    $ 9.66万
  • 项目类别:
Integrated Multiphase Blood Flow Modeling and Experiments Towards Predicting Microvascular Growth
集成多相血流建模和实验来预测微血管生长
  • 批准号:
    2309559
  • 财政年份:
    2023
  • 资助金额:
    $ 9.66万
  • 项目类别:
    Standard Grant
Study of the Effect of Changes in Blood Flow to the Brain Before and After Cardiopulmonary Bypass on Postoperative Delirium
体外循环前后脑血流变化对术后谵妄的影响研究
  • 批准号:
    23K08418
  • 财政年份:
    2023
  • 资助金额:
    $ 9.66万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Examination of the psychophysiological mechanism of facial skin blood flow in emotion processing and its clinical application
情绪处理中面部皮肤血流的心理生理机制探讨及其临床应用
  • 批准号:
    22KJ2717
  • 财政年份:
    2023
  • 资助金额:
    $ 9.66万
  • 项目类别:
    Grant-in-Aid for JSPS Fellows
Brain blood flow, oxygenation, and cognition in adult onset iron deficiency anemia
成人缺铁性贫血的脑血流量、氧合和认知
  • 批准号:
    10735765
  • 财政年份:
    2023
  • 资助金额:
    $ 9.66万
  • 项目类别:
Elucidation of the inhibitory mechanism for chewing-induced brain blood flow in patients with jaw deformity.
阐明颌畸形患者咀嚼引起的脑血流的抑制机制。
  • 批准号:
    23K09449
  • 财政年份:
    2023
  • 资助金额:
    $ 9.66万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Research of effective electrical stimulation parameters for promoting blood flow to prevent thrombosis
有效促进血流预防血栓形成的电刺激参数研究
  • 批准号:
    23K11955
  • 财政年份:
    2023
  • 资助金额:
    $ 9.66万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Effects of corneal sensory nerves, ocular surface temperature and blood flow on discomfort in contact lens wearers
角膜感觉神经、眼表温度和血流对隐形眼镜佩戴者不适的影响
  • 批准号:
    23K16828
  • 财政年份:
    2023
  • 资助金额:
    $ 9.66万
  • 项目类别:
    Grant-in-Aid for Early-Career Scientists
{{ showInfoDetail.title }}

作者:{{ showInfoDetail.author }}

知道了