Abstract

The primordial follicles are formed by an oocyte arrested in meiosis surrounded by a layer of flattened cells called granulosa cells (GCs). During follicular development to preantral stage, GCs acquire a cuboidal shape and proliferate forming multiple layers, ensuring oocyte maturation, mediated by a cross-talk between the two cell types. Interestingly, these somatic cells have some common characteristics with stem cells, such as long telomeres and telomerase activity, which will ensure the potential for multiple divisions. The aim of this work is to evaluate telomere maintenance of GCs short-term culture in two different media (A199 and DMEM), and the effects of follicular fluid (FF), which contains estrogens, known telomerase activators.

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