在马方综合征中循环转化生长因子-β在循环转化生长因子-β
Peter Matt1, Florian Schoenhoff, Jennifer Habashi
1602 Mason F. Lord Bldg, Center Tower, Johns Hopkins University, Baltimore, MD 21239, USA.
Circulation
|July 29, 2009
概括
马凡综合征 (MFS) 涉及高循环TGF-β1.1. 在MFS小鼠和患者中,洛萨坦治疗降低了这些水平,表明TGF-β1作为治疗标志物.
科学领域:
- 遗传学和分子生物学
- 心血管研究研究心血管研究
- 药理学 药理学是指药理学的学科.
背景情况:
- 马凡综合征 (MFS) 是一种由纤维素-1基因突变引起的遗传疾病,导致转化生长因子-β (TGF-β) 失调.
- 新出现的证据表明,洛沙坦是一种血管激素II型1受体抑制剂,可以通过调节TGF-β激活来有效治疗MFS.
- 这项研究调查了MFS中TGF-β失调是否反映在循环中的TGF-β度中.
研究的目的:
- 为了确定循环中的TGF-β1度是否在马凡综合征中升高.
- 评估洛萨坦治疗对MFS模型和患者TGF-β1水平的影响.
- 评估TGF-beta1作为MFS的潜在预后和治疗标志物.
主要方法:
- 在马凡综合征 (MFS) 突变小鼠 (Fbn1(C1039G/+)) 中分析了血清TGF-β1度,这些小鼠接受了洛萨坦治疗,与安慰剂和野生类型对照对比.
- 在小鼠中使用心声回声学测量大动脉根的大小.
- 人类MFS患者和健康个体的验证结果,比较TGF-beta1水平在洛萨坦或β-阻断剂治疗前后.
主要成果:
- 循环中的TGF-β1水平随着年龄的增长而增加,与野生类型相比,未经治疗的MFS小鼠的TGF-β1水平升高.
- 洛萨坦治疗显著降低了MFS小鼠的TGF-β1度,达到与野生型小鼠相似的水平.
- 在人类MFS患者中证实TGF-beta1水平升高,在洛萨坦或β-阻断剂治疗后显著下降.
结论:
- 循环中的TGF-β1度在马尔凡综合征中显著升高.
- 洛萨坦和β-阻断剂疗法有效地降低了MFS中TGF-β1水平的升高.
- TGF-β1可以作为一个有价值的预后和治疗标记,用于马凡综合征的管理.
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