Transcriptome signature in the blood of neuromyelitis optica spectrum disorder under steroid tapering

BackgroundThe advent of biologics has significantly transformed treatment strategies for neuromyelitis optica spectrum disorder (NMOSD). However, there are no biomarkers that predict relapses associated with steroid tapering; therefore, it is critical to identify potential indicators of disease acti...

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Main Authors: Ryohei Yamamura, Makoto Kinoshita, Yoshiaki Yasumizu, Tomohiro Yata, Keigo Kihara, Daisuke Motooka, Naoyuki Shiraishi, Yasuko Sugiyama, Shohei Beppu, Hisashi Murata, Naoshi Koizumi, Itsuki Sano, Toru Koda, Tatsusada Okuno, Hideki Mochizuki
Format: Article
Language:English
Published: Frontiers Media S.A. 2025-02-01
Series:Frontiers in Immunology
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Online Access:https://www.frontiersin.org/articles/10.3389/fimmu.2025.1508977/full
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author Ryohei Yamamura
Makoto Kinoshita
Yoshiaki Yasumizu
Yoshiaki Yasumizu
Yoshiaki Yasumizu
Tomohiro Yata
Keigo Kihara
Daisuke Motooka
Daisuke Motooka
Naoyuki Shiraishi
Yasuko Sugiyama
Shohei Beppu
Hisashi Murata
Naoshi Koizumi
Itsuki Sano
Toru Koda
Tatsusada Okuno
Hideki Mochizuki
author_facet Ryohei Yamamura
Makoto Kinoshita
Yoshiaki Yasumizu
Yoshiaki Yasumizu
Yoshiaki Yasumizu
Tomohiro Yata
Keigo Kihara
Daisuke Motooka
Daisuke Motooka
Naoyuki Shiraishi
Yasuko Sugiyama
Shohei Beppu
Hisashi Murata
Naoshi Koizumi
Itsuki Sano
Toru Koda
Tatsusada Okuno
Hideki Mochizuki
author_sort Ryohei Yamamura
collection DOAJ
description BackgroundThe advent of biologics has significantly transformed treatment strategies for neuromyelitis optica spectrum disorder (NMOSD). However, there are no biomarkers that predict relapses associated with steroid tapering; therefore, it is critical to identify potential indicators of disease activity. In this study, we collected peripheral blood mononuclear cells (PBMCs) from NMOSD patients during steroid tapering and performed bulk RNA sequencing to analyze changes in immune dynamics caused by steroid reduction.MethodsPBMCs were collected at 3–5 timepoints from 10 NMOSD patients at our hospital (including one relapse case), and bulk RNA sequencing was performed. All patients were positive for anti-AQP4 antibodies and had no history of biologic use.ResultsIn one relapsed patient, gene groups with decreased expression at relapse were observed predominantly in monocytes, with upregulation in anti-inflammatory pathways such as IL-10, while the upregulated genes were related to interferon signaling. Moreover, after steroid tapering, in non-relapsed patients, genes with increased expression were enriched in inflammatory pathways, represented by interferon signaling, while genes with decreased expression were enriched in pathways related to IL-10 and glucocorticoid receptors. Weighted gene co-expression network analysis identified modules that correlated with steroid dosage, and the modules inversely correlated with steroid dosage were enriched in monocytes, with marked immune signature of interferon pathway.ConclusionThis study identified peripheral blood transcriptome signatures that could lead to the identification of clinically relevant NMOSD disease activity biomarkers, and further highlights the pivotal role of interferon and IL-10 signaling in NMOSD.
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spelling doaj-art-803ea35ac7db413a807e06fc13f0613b2025-02-03T05:11:50ZengFrontiers Media S.A.Frontiers in Immunology1664-32242025-02-011610.3389/fimmu.2025.15089771508977Transcriptome signature in the blood of neuromyelitis optica spectrum disorder under steroid taperingRyohei Yamamura0Makoto Kinoshita1Yoshiaki Yasumizu2Yoshiaki Yasumizu3Yoshiaki Yasumizu4Tomohiro Yata5Keigo Kihara6Daisuke Motooka7Daisuke Motooka8Naoyuki Shiraishi9Yasuko Sugiyama10Shohei Beppu11Hisashi Murata12Naoshi Koizumi13Itsuki Sano14Toru Koda15Tatsusada Okuno16Hideki Mochizuki17Department of Neurology, Graduate School of Medicine, Osaka University, Suita, Osaka, JapanDepartment of Neurology, Graduate School of Medicine, Osaka University, Suita, Osaka, JapanDepartment of Neurology, Graduate School of Medicine, Osaka University, Suita, Osaka, JapanDepartment of Experimental Immunology, Immunology Frontier Research Center, Osaka University, Suita, Osaka, JapanIntegrated Frontier Research for Medical Science Division, Institute for Open and Transdisciplinary Research Initiatives (OTRI), Osaka University, Suita, Osaka, JapanDepartment of Neurology, Graduate School of Medicine, Osaka University, Suita, Osaka, JapanDepartment of Neurology, Graduate School of Medicine, Osaka University, Suita, Osaka, JapanIntegrated Frontier Research for Medical Science Division, Institute for Open and Transdisciplinary Research Initiatives (OTRI), Osaka University, Suita, Osaka, JapanGenome Information Research Center, Research Institute for Microbial Diseases, Osaka University, Suita, Osaka, JapanDepartment of Neurology, Graduate School of Medicine, Osaka University, Suita, Osaka, JapanDepartment of Neurology, Graduate School of Medicine, Osaka University, Suita, Osaka, JapanDepartment of Neurology, Graduate School of Medicine, Osaka University, Suita, Osaka, JapanDepartment of Neurology, Graduate School of Medicine, Osaka University, Suita, Osaka, JapanDepartment of Neurology, Graduate School of Medicine, Osaka University, Suita, Osaka, JapanDepartment of Neurology, Graduate School of Medicine, Osaka University, Suita, Osaka, JapanDepartment of Neurology, Graduate School of Medicine, Osaka University, Suita, Osaka, JapanDepartment of Neurology, Graduate School of Medicine, Osaka University, Suita, Osaka, JapanDepartment of Neurology, Graduate School of Medicine, Osaka University, Suita, Osaka, JapanBackgroundThe advent of biologics has significantly transformed treatment strategies for neuromyelitis optica spectrum disorder (NMOSD). However, there are no biomarkers that predict relapses associated with steroid tapering; therefore, it is critical to identify potential indicators of disease activity. In this study, we collected peripheral blood mononuclear cells (PBMCs) from NMOSD patients during steroid tapering and performed bulk RNA sequencing to analyze changes in immune dynamics caused by steroid reduction.MethodsPBMCs were collected at 3–5 timepoints from 10 NMOSD patients at our hospital (including one relapse case), and bulk RNA sequencing was performed. All patients were positive for anti-AQP4 antibodies and had no history of biologic use.ResultsIn one relapsed patient, gene groups with decreased expression at relapse were observed predominantly in monocytes, with upregulation in anti-inflammatory pathways such as IL-10, while the upregulated genes were related to interferon signaling. Moreover, after steroid tapering, in non-relapsed patients, genes with increased expression were enriched in inflammatory pathways, represented by interferon signaling, while genes with decreased expression were enriched in pathways related to IL-10 and glucocorticoid receptors. Weighted gene co-expression network analysis identified modules that correlated with steroid dosage, and the modules inversely correlated with steroid dosage were enriched in monocytes, with marked immune signature of interferon pathway.ConclusionThis study identified peripheral blood transcriptome signatures that could lead to the identification of clinically relevant NMOSD disease activity biomarkers, and further highlights the pivotal role of interferon and IL-10 signaling in NMOSD.https://www.frontiersin.org/articles/10.3389/fimmu.2025.1508977/fullNMOSDsteroidtranscriptome signatureIL-10interferon
spellingShingle Ryohei Yamamura
Makoto Kinoshita
Yoshiaki Yasumizu
Yoshiaki Yasumizu
Yoshiaki Yasumizu
Tomohiro Yata
Keigo Kihara
Daisuke Motooka
Daisuke Motooka
Naoyuki Shiraishi
Yasuko Sugiyama
Shohei Beppu
Hisashi Murata
Naoshi Koizumi
Itsuki Sano
Toru Koda
Tatsusada Okuno
Hideki Mochizuki
Transcriptome signature in the blood of neuromyelitis optica spectrum disorder under steroid tapering
Frontiers in Immunology
NMOSD
steroid
transcriptome signature
IL-10
interferon
title Transcriptome signature in the blood of neuromyelitis optica spectrum disorder under steroid tapering
title_full Transcriptome signature in the blood of neuromyelitis optica spectrum disorder under steroid tapering
title_fullStr Transcriptome signature in the blood of neuromyelitis optica spectrum disorder under steroid tapering
title_full_unstemmed Transcriptome signature in the blood of neuromyelitis optica spectrum disorder under steroid tapering
title_short Transcriptome signature in the blood of neuromyelitis optica spectrum disorder under steroid tapering
title_sort transcriptome signature in the blood of neuromyelitis optica spectrum disorder under steroid tapering
topic NMOSD
steroid
transcriptome signature
IL-10
interferon
url https://www.frontiersin.org/articles/10.3389/fimmu.2025.1508977/full
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