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首页> 外文期刊>Biology Open >The transformation suppressor gene Reck is required for postaxial patterning in mouse forelimbs
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The transformation suppressor gene Reck is required for postaxial patterning in mouse forelimbs

机译:小鼠前肢的后轴构图需要转化抑制基因Reck

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The membrane-anchored metalloproteinase-regulator RECK has been characterized as a tumor suppressor. Here we report that mice with reduced Reck -expression show limb abnormalities including right-dominant, forelimb-specific defects in postaxial skeletal elements. The forelimb buds of low- Reck mutants have an altered dorsal ectoderm with reduced Wnt7a and Igf2 expression, and hypotrophy in two signaling centers (i.e., ZPA and AER) that are essential for limb outgrowth and patterning. Reck is abundantly expressed in the anterior mesenchyme in normal limb buds; mesenchyme-specific Reck inactivation recapitulates the low- Reck phenotype; and some teratogens downregulate Reck in mesenchymal cells. Our findings illustrate a role for Reck in the mesenchymal-epithelial interactions essential for mammalian development.
机译:膜锚定的金属蛋白酶调节剂RECK被表征为肿瘤抑制因子。在这里我们报告说,具有减少的Reck表达的小鼠显示出肢体异常,包括右后肢骨骼元件中的右支,前肢特异性缺陷。低Reck突变体的前肢芽的背外胚层改变,Wnt7a和Igf2表达降低,并且两个信号中心(即ZPA和AER)的营养不良,这对于肢体生长和构图至关重要。 Reck在正常肢芽的前间充质中大量表达。间质特异性的Reck失活概括了低Reck的表型。和某些致畸剂下调间充质细胞中的Reck。我们的发现说明了瑞克在哺乳动物发育所必需的间充质-上皮相互作用中的作用。

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