Abstract
Identification of criteria for embryo quality is required to improve the clinical outcome of in vitro fertilization. The aim of this study was to determine the gene expression profile of cumulus cells (CC) surrounding the oocyte as biomarkers for embryonic developmental potential. CCs from single oocytes were analysed using DNA microarrays. Gene expression profiles of CC surrounding the oocyte associated with good embryonic quality were analyzed. We observed that CCs issued from oocytes that developed into embryos with a good morphology had significantly different gene expression profile from those with bad morphology. These results were confirmed by quantitative RT–PCR. The gene expression profiling of human CC correlates with embryo potential. Our findings suggest anon-invasive approach, offering a new potential strategy for competent embryo selection.
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