Effects of PD-1 inhibitors on ovarian function-based on two-sample mendelian randomization and visualization experimental validation

IF 2.8 4区 医学 Q2 REPRODUCTIVE BIOLOGY
Jiaxin Zheng , Na Zhu , Chang Liu , Xiang Li , Keming Zhang , Zhuo Yang , Danbo Wang , Bo Liu
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Abstract

Although immune checkpoint inhibitors (ICIs) have transformed cancer treatment by improving survival, their ovarian safety remains uncertain. This study combined Mendelian randomization (MR) and experimental validation to assess the impact of PD-1 inhibitors on ovarian function. MR analysis used summary statistics from large European-ancestry genome-wide association studies (GWAS), applying the inverse-variance weighted (IVW) method, supported by sensitivity analyses. For in vitro experiments, mouse follicles were cultured with 10 µg/ml PD-1 inhibitor ch15mt (clinically relevant concentration), 200 nM doxorubicin (DOX), or PBS control. Follicular morphology was evaluated via diameter measurements; endocrine function by estradiol (E2) quantification using ELISA. Real-time cytoplasmic Ca²⁺ dynamics were monitored using FRET-based Cyto-Ca2 + probes for high-resolution stress assessment. MR results showed no significant association between genetically predicted PD-1 levels and risks of premature ovarian insufficiency, infertility, or alterations in ovarian hormones including AMH and E2. Sensitivity analyses confirmed MR robustness. In vitro, PD-1 inhibition did not affect follicular size or E2 secretion. Notably, DOX induced rapid Ca²⁺ elevation, while PD-1 inhibitor treatment had no detectable effect on Ca²⁺ fluctuations. This first integrative MR and experimental study demonstrates that PD-1 inhibitors at clinically relevant concentrations lack acute ovarian toxicity. While further work is needed to assess long-term effects, these findings demonstrate that standard anti-PD-1 immunotherapy regimens do not compromise follicular viability or endocrine function, strongly supporting their safety in fertility-sparing oncology protocols.
PD-1抑制剂对卵巢功能的影响——基于两样本孟德尔随机化和可视化实验验证。
尽管免疫检查点抑制剂(ICIs)通过提高生存率改变了癌症治疗,但其卵巢安全性仍不确定。本研究结合孟德尔随机化(MR)和实验验证来评估PD-1抑制剂对卵巢功能的影响。MR分析使用来自大型欧洲血统全基因组关联研究(GWAS)的汇总统计数据,采用反方差加权(IVW)方法,并辅以敏感性分析。体外实验用10µg/ml PD-1抑制剂ch15mt(临床相关浓度)、200nM阿霉素(DOX)或PBS对照培养小鼠卵泡。通过直径测量评估卵泡形态;用ELISA法定量测定雌二醇(E2)的内分泌功能。使用基于fret的细胞质ca2 +探针监测实时细胞质Ca2+动态,用于高分辨率应力评估。磁共振结果显示,基因预测的PD-1水平与卵巢早衰、不孕症或卵巢激素(包括AMH和E2)改变的风险之间没有显著关联。敏感性分析证实了MR的稳健性。体外,PD-1抑制不影响卵泡大小或E2分泌。值得注意的是,DOX诱导了Ca 2 +的快速升高,而PD-1抑制剂处理对Ca 2 +的波动没有可检测到的影响。这项首次结合磁共振和实验研究表明,临床相关浓度的PD-1抑制剂没有急性卵巢毒性。虽然需要进一步的工作来评估长期效果,但这些发现表明,标准的抗pd -1免疫治疗方案不会损害卵泡活力或内分泌功能,有力地支持其在保留生育能力的肿瘤学方案中的安全性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Reproductive toxicology
Reproductive toxicology 生物-毒理学
CiteScore
6.50
自引率
3.00%
发文量
131
审稿时长
45 days
期刊介绍: Drawing from a large number of disciplines, Reproductive Toxicology publishes timely, original research on the influence of chemical and physical agents on reproduction. Written by and for obstetricians, pediatricians, embryologists, teratologists, geneticists, toxicologists, andrologists, and others interested in detecting potential reproductive hazards, the journal is a forum for communication among researchers and practitioners. Articles focus on the application of in vitro, animal and clinical research to the practice of clinical medicine. All aspects of reproduction are within the scope of Reproductive Toxicology, including the formation and maturation of male and female gametes, sexual function, the events surrounding the fusion of gametes and the development of the fertilized ovum, nourishment and transport of the conceptus within the genital tract, implantation, embryogenesis, intrauterine growth, placentation and placental function, parturition, lactation and neonatal survival. Adverse reproductive effects in males will be considered as significant as adverse effects occurring in females. To provide a balanced presentation of approaches, equal emphasis will be given to clinical and animal or in vitro work. Typical end points that will be studied by contributors include infertility, sexual dysfunction, spontaneous abortion, malformations, abnormal histogenesis, stillbirth, intrauterine growth retardation, prematurity, behavioral abnormalities, and perinatal mortality.
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