邻苯二甲酸一苯酯精子毒性的综合计算分析:高亲和力结合破坏非阻塞性无精子症中ACE2-CYP17A1的协同调节。

IF 2.8 4区 医学 Q2 REPRODUCTIVE BIOLOGY
Guangqiang Zhu , Chunlin Tan , Yugen Li
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引用次数: 0

摘要

邻苯二甲酸酯是典型的环境内分泌干扰物,其代谢产物通过破坏人体内分泌稳态而导致生殖毒性。然而,人类共同暴露于多种代谢物的复杂性、传统研究中的混淆性偏差以及反向因果关系问题模糊了关键毒性代谢物的致病贡献和致病机制。本研究采用多组学整合策略,利用孟德尔随机化(MR)确定邻苯二甲酸一苯酯(MBzP)是睾丸损伤的致病危险因素(β = 1.26, P = 0.002)。以非阻塞性无精子症(NOA)为研究对象,结合网络毒理学鉴定了15个共同的分子靶点。通过结合可解释机器学习,我们发现核心靶点ACE2/CYP17A1在Sertoli细胞中显着过表达。单基因的基因集富集分析(GSEA)揭示了关键通路分化:低表达激活精子发生通路,高表达驱动炎症-凋亡网络(TGF-β、p53通路、干扰素反应)。分子对接和动力学模拟(MDS)证实MBzP与ACE2(结合能= -7.2kcal/mol)和CYP17A1(结合能= -7.5kcal/mol)形成稳定的配合物,通过变构效应干扰其生理功能。本研究首次阐明了MBzP-ACE2/CYP17A1相互作用-炎症/凋亡级联激活-生精抑制分子轴,为男性不育的精准干预提供了新的靶点。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Integrative computational dissection of monobenzyl phthalate spermatotoxicity: High-affinity binding disrupts ACE2-CYP17A1 coregulation in non-obstructive azoospermia
Phthalates, as typical environmental endocrine disruptors, can lead to reproductive toxicity by disrupting human endocrine homeostasis with their metabolites. However, the complexity of human co-exposure to multiple metabolites, confounding biases in traditional studies, and reverse causality issues obscure the causative contributions and pathogenic mechanisms of key toxic metabolites. This study employs a multi-omics integrative strategy, leveraging Mendelian Randomization (MR) to identify Monobenzyl phthalate (MBzP) as a causative risk factor for testicular damage (β = 1.26, P = 0.002). Focusing on Non-obstructive azoospermia (NOA), we integrated network toxicology to identify 15 shared molecular targets. By combining interpretable machine learning, we discovered that core targets ACE2/CYP17A1 are significantly overexpressed in Sertoli cells. Gene Set Enrichment Analysis (GSEA) of single genes revealed critical pathway differentiation: low expression states activate spermatogenesis pathways, while high expression drives inflammatory-apoptotic networks (TGF-β, p53 pathways, interferon response). Molecular docking and dynamics simulation (MDS) confirmed that MBzP forms stable complexes with ACE2 (binding energy = −7.2 kcal/mol) and CYP17A1 (binding energy = −7.5 kcal/mol), interfering with their physiological functions through allosteric effects. This study for the first time elucidates the MBzP-ACE2/CYP17A1 interaction-inflammatory/apoptotic cascade activation-spermatogenesis inhibition molecular axis, providing new targets for precise intervention in male infertility.
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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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