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特发性及家族性肺动脉高压致病基因骨形成蛋白受体2启动子结构和功能分析 被引量:3

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摘要 目前特发性肺动脉高压(idiopathicpulmonaryarteryhypertension。IPAH)和家族性肺动脉高压(familypulmonaryarteryhypertension,FPAH)的病因不明,死亡率高,预后差。2000年Deng和Lane等发现骨形成蛋白受体2(bonemorphogeneticproteinreceptor2,BMPR2)基因突变是FPAH和IPAH的重要病因。BMPR2基因是转化生长因子β(TGF-β)受体超家族成员,TGF-β/BMPR/BMP信号传导是血管形成、细胞增殖及细胞凋亡的重要因子。研究结果显示约50%~69%的FPAH和21%~26%的IPAH患者存在BMP如基因突变。此外,在服用减肥药、肺静脉闭塞和先天性心脏病导致的肺动脉高压患者中也发现BMP如基因突变。在正常人及小鼠的肺血管内皮细胞BMP如基因表达增强,但近年发现即使在没有BMP如基因突变的情况下,FPAH和IPAH患者肺血管内皮细胞BMP如基因表达仍低下,因此,推测BMPR2基因启动子区域结构或功能异常可能会影响该基因的表达,从而丧失其对血管内皮细胞的生长抑制作用,最终导致肺动脉高压。研究结果显示,在肺动脉高压大鼠模型中HMG-CoA还原酶抑制剂辛伐他汀不但可降低肺动脉高压、抑制血管内皮细胞和平滑肌细胞增生,还可改善FPAH和IPAH患者对运动的耐受力、血液动力学及生存率。本研究的目的是分析人体BMPR2基因启动子的结构和功能并探讨辛伐他汀对BMPR2基因启动子的调控作用,为研究BMPR2基因缺陷与FPAH和IPAH的病因关系奠定基础。
出处 《中华结核和呼吸杂志》 CAS CSCD 北大核心 2007年第3期231-232,共2页 Chinese Journal of Tuberculosis and Respiratory Diseases
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参考文献8

  • 1Deng Z, Morse JH, Slager SL, et al. Familial primary pulmonary hypertension (gene PPH1) is caused by mutations in the bone morphogenetic protein receptor Ⅱ gene. Am J Hum Genet,2000,67:737-744.
  • 2Lane KB, Machado RD, Pauciulo MW, et al. Heterozygous germline mutations in BMPR2, encoding a TGF-beta receptor,cause familial primary pulmonary hypertension. The International PPH Consortium. Nat Genet,2000, 26:81-84.
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同被引文献19

  • 1Scott J. Pulling apart pulmonary hypertension. Nat Genet, 2000, 26:3-4.
  • 2Deng Z, Morse JH, Slager SL, et al. Familial primary pulmonary hypertension (gene PPH1 ) is caused by mutations in the bone morpbogenetic protein receptor-If gene. Am J Hum C, enet, 2000, 67 : 737-744.
  • 3Lane KB, Machado RD, Pauciulo MW, et al. Heterozygous germline mutations in BMPR2, encoding a TGF-beta receptor, cause familial primary pulmonary hypertension. The International PPH Consortium. Nat Genet, 2000, 26: 81-84.
  • 4Machado RD, Pauciulo MW, Thomson JR, et al. BMPR2 haploinsuflqeiency as the inherited molecular mechanism for primary pulmonary hypertension. Am J Hum Genet, 2001, 68: 92-102.
  • 5Thomson JR, Machado RD, Pauciulo MW, et al. Sporadic primary pulmonary hypertension is associated with germline mutations of the gene encoding BMPR-II, a receptor member of the TGF-beta family. J Med Genet, 2000,37:741-745.
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  • 7Aldred MA, Vijayakrishnan J, James V, et al. BMPR2 gene rearrangements account for a significant proportion of mutations in familial and idiopathic pulmonary arterial hypertension. Hum Murat, 2006, 27: 212-213.
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  • 9Atkinson C, Stewart S, Upton PD, et al. Primary pulmonary hypertension is associated with reduced pulmonary vascular expression of type II bone morphogenetic protein receptor. Circulation, 2002, 105 : 1672-1678.
  • 10Favre C J, Mancuso M, Maas K, et al. Expression of genes involved in vascular development and angiogenesis in endothelial cells of adult lung. Am J Physio! Heart Circ Physiol, 2003,285 : H1917-1938.

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