{"title":"Androgen insensitivity and the evolving genetic heterogeneity","authors":"Nadine Hornig , Rafael Loch Batista","doi":"10.1016/j.beem.2025.102000","DOIUrl":null,"url":null,"abstract":"<div><div>Androgen Insensitivity Syndrome (AIS) is a 46,XY difference of sex development (DSD) classically caused by mutations in the androgen receptor (<em>AR</em>) gene, leading to variable androgen resistance and a broad phenotypic spectrum traditionally classified as complete, partial, or mild. Phenotypic variability can occur even with identical <em>AR</em> mutations, particularly those within the ligand-binding domain of the AR. Emerging evidence implicates non-coding regulatory variants, deep intronic mutations, AR co-regulator dysfunction, and oligogenic inheritance in the aetiology of AIS. The molecular diagnostic workflow should incorporate either targeted <em>AR</em> sequencing or whole-exome sequencing, depending on the clinical context. Biochemical and functional assays remain clinically useful, especially when <em>AR</em> variants are not detected or when variants of unknown significance (VUS) are identified. Advances in patient-derived hiPSC models and testicular organoids provide new insights into AR function and therapeutic strategies. Expanding genomic and epigenetic research will refine diagnostic accuracy, and personalized care, ultimately optimizing patient outcomes in AIS.</div></div>","PeriodicalId":8810,"journal":{"name":"Best practice & research. Clinical endocrinology & metabolism","volume":"39 4","pages":"Article 102000"},"PeriodicalIF":6.1000,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Best practice & research. Clinical endocrinology & metabolism","FirstCategoryId":"3","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1521690X25000338","RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENDOCRINOLOGY & METABOLISM","Score":null,"Total":0}
引用次数: 0
Abstract
Androgen Insensitivity Syndrome (AIS) is a 46,XY difference of sex development (DSD) classically caused by mutations in the androgen receptor (AR) gene, leading to variable androgen resistance and a broad phenotypic spectrum traditionally classified as complete, partial, or mild. Phenotypic variability can occur even with identical AR mutations, particularly those within the ligand-binding domain of the AR. Emerging evidence implicates non-coding regulatory variants, deep intronic mutations, AR co-regulator dysfunction, and oligogenic inheritance in the aetiology of AIS. The molecular diagnostic workflow should incorporate either targeted AR sequencing or whole-exome sequencing, depending on the clinical context. Biochemical and functional assays remain clinically useful, especially when AR variants are not detected or when variants of unknown significance (VUS) are identified. Advances in patient-derived hiPSC models and testicular organoids provide new insights into AR function and therapeutic strategies. Expanding genomic and epigenetic research will refine diagnostic accuracy, and personalized care, ultimately optimizing patient outcomes in AIS.
期刊介绍:
Best Practice & Research Clinical Endocrinology & Metabolism is a serial publication that integrates the latest original research findings into evidence-based review articles. These articles aim to address key clinical issues related to diagnosis, treatment, and patient management.
Each issue adopts a problem-oriented approach, focusing on key questions and clearly outlining what is known while identifying areas for future research. Practical management strategies are described to facilitate application to individual patients. The series targets physicians in practice or training.