Effect of Topical Corticosteroid Treatment on microRNA Expression in Infants with Atopic Dermatitis

MicroRNAs (miRNAs) have been implicated in a variety of disorders. Although studies have examined miRNA in pediatric atopic dermatitis (AD), the impact of topical corticosteroid (TCS) therapy on miRNA expression in pediatric AD has not been investigated. We sought to investigate the effects of 6 wee...

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Main Authors: Janna Nousbeck, Maeve A. McAleer, Elaine M. Kenny, Alan D. Irvine
Format: Article
Language:English
Published: Elsevier 2025-09-01
Series:JID Innovations
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Online Access:http://www.sciencedirect.com/science/article/pii/S266702672500044X
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author Janna Nousbeck
Maeve A. McAleer
Elaine M. Kenny
Alan D. Irvine
author_facet Janna Nousbeck
Maeve A. McAleer
Elaine M. Kenny
Alan D. Irvine
author_sort Janna Nousbeck
collection DOAJ
description MicroRNAs (miRNAs) have been implicated in a variety of disorders. Although studies have examined miRNA in pediatric atopic dermatitis (AD), the impact of topical corticosteroid (TCS) therapy on miRNA expression in pediatric AD has not been investigated. We sought to investigate the effects of 6 weeks of TCS therapy on miRNA expression in infants with AD. Small RNA sequencing and real-time RT-qPCR were performed to identify differentially expressed miRNAs in PBMCs of infants with AD after TCS treatment; HTG EdgeSeq was used to identify differentially expressed miRNAs in plasma. Kyoto Encyclopedia of Genes and Genomes pathway enrichment analysis was conducted using a list of experimentally verified miRNA targets sourced from the DIANA-TarBase and miRTarBase databases. Five miRNAs were differentially expressed in circulating PBMCs after TCS treatment (miR-143-3p, miR-27a-5p, miR-126-3p, miR-451a, and miR-223-3p); 12 miRNAs were differentially expressed in plasma. These miRNAs have regulatory functions crucial for regulating cell growth and survival, vascular adhesion, angiogenesis, skin barrier integrity, stress and nervous system processes, immune responses, inflammation, and T helper 17 cell differentiation. TCS treatment led to a distinct miRNA expression profile in peripheral blood, providing insights into how this treatment impacts disease mechanisms in childhood AD.
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spelling doaj-art-81b1c6cd6aad48f8987c8dc2df14d2d62025-07-04T04:47:14ZengElsevierJID Innovations2667-02672025-09-0155100388Effect of Topical Corticosteroid Treatment on microRNA Expression in Infants with Atopic DermatitisJanna Nousbeck0Maeve A. McAleer1Elaine M. Kenny2Alan D. Irvine3Clinical Medicine, Trinity College Dublin, Dublin, IrelandClinical Medicine, Trinity College Dublin, Dublin, Ireland; Paediatric Dermatology, Children’s Health Ireland at Crumlin, Dublin, IrelandTrinSeq, Department of Psychiatry, Trinity Translational Medicine Institute, Trinity College Dublin, St James’s Hospital, Dublin, IrelandClinical Medicine, Trinity College Dublin, Dublin, Ireland; Paediatric Dermatology, Children’s Health Ireland at Crumlin, Dublin, Ireland; Correspondence: Alan D. Irvine, Clinical Medicine, Trinity College Dublin, Dublin B12, Ireland.MicroRNAs (miRNAs) have been implicated in a variety of disorders. Although studies have examined miRNA in pediatric atopic dermatitis (AD), the impact of topical corticosteroid (TCS) therapy on miRNA expression in pediatric AD has not been investigated. We sought to investigate the effects of 6 weeks of TCS therapy on miRNA expression in infants with AD. Small RNA sequencing and real-time RT-qPCR were performed to identify differentially expressed miRNAs in PBMCs of infants with AD after TCS treatment; HTG EdgeSeq was used to identify differentially expressed miRNAs in plasma. Kyoto Encyclopedia of Genes and Genomes pathway enrichment analysis was conducted using a list of experimentally verified miRNA targets sourced from the DIANA-TarBase and miRTarBase databases. Five miRNAs were differentially expressed in circulating PBMCs after TCS treatment (miR-143-3p, miR-27a-5p, miR-126-3p, miR-451a, and miR-223-3p); 12 miRNAs were differentially expressed in plasma. These miRNAs have regulatory functions crucial for regulating cell growth and survival, vascular adhesion, angiogenesis, skin barrier integrity, stress and nervous system processes, immune responses, inflammation, and T helper 17 cell differentiation. TCS treatment led to a distinct miRNA expression profile in peripheral blood, providing insights into how this treatment impacts disease mechanisms in childhood AD.http://www.sciencedirect.com/science/article/pii/S266702672500044XAtopic dermatitisBiomarkersCorticosteroidsmiRNATherapeutics
spellingShingle Janna Nousbeck
Maeve A. McAleer
Elaine M. Kenny
Alan D. Irvine
Effect of Topical Corticosteroid Treatment on microRNA Expression in Infants with Atopic Dermatitis
JID Innovations
Atopic dermatitis
Biomarkers
Corticosteroids
miRNA
Therapeutics
title Effect of Topical Corticosteroid Treatment on microRNA Expression in Infants with Atopic Dermatitis
title_full Effect of Topical Corticosteroid Treatment on microRNA Expression in Infants with Atopic Dermatitis
title_fullStr Effect of Topical Corticosteroid Treatment on microRNA Expression in Infants with Atopic Dermatitis
title_full_unstemmed Effect of Topical Corticosteroid Treatment on microRNA Expression in Infants with Atopic Dermatitis
title_short Effect of Topical Corticosteroid Treatment on microRNA Expression in Infants with Atopic Dermatitis
title_sort effect of topical corticosteroid treatment on microrna expression in infants with atopic dermatitis
topic Atopic dermatitis
Biomarkers
Corticosteroids
miRNA
Therapeutics
url http://www.sciencedirect.com/science/article/pii/S266702672500044X
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AT elainemkenny effectoftopicalcorticosteroidtreatmentonmicrornaexpressionininfantswithatopicdermatitis
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