作者: H.-S. Kim , C.-R. Roh , B. Chen , B. Tycko , D.M. Nelson
DOI: 10.1016/J.PLACENTA.2006.01.025
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摘要: Abstract Hypoxia influences gene expression in placental trophoblasts. We sought to examine the effect of hypoxia on trophoblast human PHLDA2 (also termed IPL, TSSC3 or BWR-1C), a product an imprinted chromosome 11p15.5 whose murine ortholog plays pivotal role development. initially confirmed that was expressed term villi, primarily layer. Using quantitative PCR we found gradually declined during differentiation primary A similar pattern seen for p57 Kip2 and IGF-II, both products genes 11p15.5. Exposure trophoblasts vitro (O 2 ≤ 2%) markedly reduced mRNA protein. This not consistent among other products, as decreased, but IGF-II increased hypoxic exposed TGFβ1, -β2 -β3 unchanged. conclude down-regulates As limits growth, our results suggest down-regulation attenuates impact growth.