Extracellular matrix genes as hypoxia-inducible targets.

Extracellular matrix genes as hypoxia-inducible targets.
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DOI:
10.1007/s00441-009-0841-7
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发表时间:
2010-01
影响因子:
3.6
通讯作者:
Schipani, Ernestina
Schipani, Ernestina
中科院分区:
生物学3区
文献类型:
--
作者:
Myllyharju, Johanna;Schipani, Ernestina

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低氧压,即低氧,是许多人类疾病的病理生理成分,也是正常发育和分化过程中的重要现象。细胞在低氧条件下生存或适应的能力依赖于一系列低氧诱导转录因子(HIF),这些转录因子诱导一系列基因的表达,这些基因涉及造血、血管生成、铁运输、葡萄糖利用、抵抗氧化应激、细胞增殖、生存和凋亡以及细胞外基质稳态。我们在这里介绍了最近发现的与缺氧诱导因子的氧依赖稳定性和活性有关的分子机制,然后我们重点介绍了作为缺氧诱导因子靶点的细胞外基质基因。然后讨论了低氧反应通路在软骨形成和关节发育中的重要作用。
Low oxygen tension, i.e., hypoxia, is a pathophysiological component involved in many human disorders but is also a critically important phenomenon in normal development and differentiation. The ability of cells to survive under hypoxia or to adapt to it depends on a family of hypoxia-inducible transcription factors (HIFs) that induce the expression of a number of genes involved in hematopoiesis, angiogenesis, iron transport, glucose utilization, resistance to oxidative stress, cell proliferation, survival and apoptosis, and extracellular matrix homeostasis. We introduce here the recently identified molecular mechanisms responsible for the oxygen-dependent stability and activity of HIF, after which we focus on extracellular matrix genes as HIF targets. The vital role of the hypoxia response pathway in chondrogenesis and joint development is then discussed.
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