Sills E Scott, Wood Samuel H, Walsh Anthony P H
Center for Advanced Genetics, Regenerative Biology Group, San Clemente, California, USA.
Gen 5 Fertility, San Diego, California, USA.
Biochimie. 2023 Jan;204:41-47. doi: 10.1016/j.biochi.2022.08.020. Epub 2022 Sep 6.
On a therapeutic landscape unchanged since the 1980's, oocyte donation with IVF still stands as the solitary medical answer to diminished reserve and premature ovarian insufficiency. In 2016, intraovarian platelet-rich plasma (PRP) crossed the horizon as a hopeful reply to these intertwined problems. The once remote mirage of platelet cytokine effects on gene regulation or telomere stabilization has been brought into sharper focus, with current work clarifying how PRP corrects oxidative stress, rectifies tissue hypoxia, downregulates apoptosis, and enhances cellular metabolism. Not yet ready for routine use, this innovative treatment has already offered at least one point of early consensus: How intraovarian PRP results should be classified-Patients are either responders or non-responders. From this it is intriguing that no published PRP protocol has ever reported a supranormal ovarian rebound or hyperstimulation effect. This might be explained by baseline age-related ovarian conditions prevalent among poor responders, but since dysregulated or malignant transformations are also missing in other tissue contexts following autologous PRP treatment, the contribution of some platelet product which intrinsically delimits regenerative action cannot be discounted. Here we summarize results with recent experimental and clinical platelet research, framing those most likely to help advance reproductive endocrinology practice.
自20世纪80年代以来治疗格局未变,体外受精(IVF)联合卵母细胞捐赠仍是应对卵巢储备功能下降和卵巢早衰的唯一医学解决方案。2016年,卵巢内注射富血小板血浆(PRP)作为对这些相互交织问题的一种有望的应对方法出现了。血小板细胞因子对基因调控或端粒稳定作用这一曾经遥远的幻想已受到更密切关注,当前的研究阐明了PRP如何纠正氧化应激、改善组织缺氧、下调细胞凋亡并增强细胞代谢。这种创新疗法虽尚未准备好用于常规治疗,但已至少达成了一个早期共识:如何对卵巢内PRP治疗结果进行分类——患者要么有反应,要么无反应。由此引发人们好奇的是,尚无已发表的PRP方案报告过超正常的卵巢反应或过度刺激效应。这可能是由于反应不良者中普遍存在与年龄相关卵巢基线状况,但自体PRP治疗后在其他组织环境中也未出现失调或恶性转化,因此不能忽视某些本质上限制再生作用的血小板产物的作用。在此,我们总结近期血小板实验研究和临床研究结果,梳理出那些最有可能推动生殖内分泌学实践发展的研究成果。