{"title":"Neonatal skin: barrier, immunity and infection prevention in the NICU","authors":"Tobias Strunk , Jakob Steer , Andrew Currie","doi":"10.1016/j.siny.2025.101681","DOIUrl":null,"url":null,"abstract":"<div><div>The neonatal skin is central to early survival and immune development. Far from being a passive mechanical barrier, it integrates physical, chemical, and microbial defences that together protect the infant in the immediate postnatal period. In preterm infants, structural immaturity, reduced antimicrobial capacity, and altered microbial colonisation confer heightened vulnerability to infection and inflammation. At the same time, the neonatal period represents a critical window during which skin–microbe interactions shape tolerance and long-term immune trajectories. This review summarises recent advances in understanding the development of the skin barrier, antimicrobial and innate immune defences, and the role of commensals in immune programming. Translational opportunities for neonatal care are discussed, including skin protective practices, antisepsis, and emollient use that may reduce infection risk in the neonatal intensive care unit. Finally, we consider future directions in microbiome-informed and skin-centred strategies.</div></div>","PeriodicalId":49547,"journal":{"name":"Seminars in Fetal & Neonatal Medicine","volume":"30 4","pages":"Article 101681"},"PeriodicalIF":2.9000,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Seminars in Fetal & Neonatal Medicine","FirstCategoryId":"3","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1744165X25000757","RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2025/10/25 0:00:00","PubModel":"Epub","JCR":"Q1","JCRName":"PEDIATRICS","Score":null,"Total":0}
引用次数: 0
Abstract
The neonatal skin is central to early survival and immune development. Far from being a passive mechanical barrier, it integrates physical, chemical, and microbial defences that together protect the infant in the immediate postnatal period. In preterm infants, structural immaturity, reduced antimicrobial capacity, and altered microbial colonisation confer heightened vulnerability to infection and inflammation. At the same time, the neonatal period represents a critical window during which skin–microbe interactions shape tolerance and long-term immune trajectories. This review summarises recent advances in understanding the development of the skin barrier, antimicrobial and innate immune defences, and the role of commensals in immune programming. Translational opportunities for neonatal care are discussed, including skin protective practices, antisepsis, and emollient use that may reduce infection risk in the neonatal intensive care unit. Finally, we consider future directions in microbiome-informed and skin-centred strategies.
期刊介绍:
Seminars in Fetal & Neonatal Medicine (formerly Seminars in Neonatology) is a bi-monthly journal which publishes topic-based issues, including current ''Hot Topics'' on the latest advances in fetal and neonatal medicine. The Journal is of interest to obstetricians and maternal-fetal medicine specialists.
The Journal commissions review-based content covering current clinical opinion on the care and treatment of the pregnant patient and the neonate and draws on the necessary specialist knowledge, including that of the pediatric pulmonologist, the pediatric infectious disease specialist, the surgeon, as well as the general pediatrician and obstetrician.
Each topic-based issue is edited by an authority in their field and contains 8-10 articles.
Seminars in Fetal & Neonatal Medicine provides:
• Coverage of major developments in neonatal care;
• Value to practising neonatologists, consultant and trainee pediatricians, obstetricians, midwives and fetal medicine specialists wishing to extend their knowledge in this field;
• Up-to-date information in an attractive and relevant format.