INTRODUCTION:Due to their regenerative ability, stem cells are looked at as a promising tool for improving infertility treatments in women. As the main limiting factor in female fertility is represented by the decrease of ovarian reserve, the main goals of stem cell-based clinical platforms would be to obtain in vitro or in vivo neo-oogenesis. Refractory endometrial factor infertility also represents an obstacle for female reproduction for which stem cells might provide novel treatment strategies. Areas covered: A systematic search of the literature was performed on MEDLINE/PubMed database to identify relevant articles using stem-cell based clinical or research platforms in the field of female infertility. Expert opinion: In vitro oogenesis has not so far developed beyond the stage of oocyte-like cells whose normal progression to mature oocytes and ability to be fertilized was not proved. Extensive epigenetic programming of gamete precursors and the complex interactions between somatic and germ cells required for human oogenesis likely represent the main obstacles in stem-cell-based neo-oogenesis. Also resuming oogenesis in vivo in adulthood still appears a distant hypothesis, as there is still a lack of consensus about the existence and functionality of adult ovarian stem cells.

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简介:由于具有再生能力,干细胞被视为改善女性不育症治疗方法的有前途的工具。由于女性生育力的主要限制因素以卵巢储备的减少为代表,因此基于干细胞的临床平台的主要目标将是获得体外或体内新卵子发生。难治性子宫内膜因子不孕症也代表了女性生殖的障碍,干细胞可能为女性生殖提供了新的治疗策略。覆盖领域:在MEDLINE / PubMed数据库上进行了系统的文献检索,以使用基于干细胞的女性不育领域临床或研究平台鉴定相关文章。专家意见:迄今为止,卵母细胞样细胞的发育尚未达到体外卵子形成的阶段,卵母细胞样细胞的发育尚不能正常发展并具有受精能力。配子前体的广泛表观遗传编程以及人类卵子形成所需要的体细胞和生殖细胞之间的复杂相互作用,可能代表了基于干细胞的新卵子发生中的主要障碍。由于在成年卵巢干细胞的存在和功能方面仍缺乏共识,因此在成年后体内恢复卵子形成仍是一个遥远的假设。

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