
浏览全部资源
扫码关注微信
1.重庆医科大学附属儿童医院儿科研究所,国家儿童健康与疾病临床医学研究中心,儿童发育疾病研究教育部重点实验室,重庆
2.重庆医科大学附属儿童医院皮肤科,重庆
周卫辉, E-mail: zwh@hospital.cqmu.edu.cn
收稿:2025-09-27,
修回:2025-11-14,
录用:2025-11-16,
纸质出版:2025-12-15
移动端阅览
孙亚楠,周家红,刘雅琴,等.MAVS功能丧失性突变导致抗病毒免疫缺陷:揭示病毒感染触发儿童泛发性脓疱性银屑病的新机制[J].陆军军医大学学报,2025,47(23):2953-2962.DOI:10.16016/j.2097-0927.202509092.
SUN Y N,ZHOU J H,LIU Y Q,et al.Loss-of-function MAVS mutation causes antiviral immunodeficiency: unveiling a novel mechanism linking viral infection to generalized pustular psoriasis in children[J].J Army Med Univ,2025,47(23):2953-2962.DOI:10.16016/j.2097-0927.202509092.
孙亚楠,周家红,刘雅琴,等.MAVS功能丧失性突变导致抗病毒免疫缺陷:揭示病毒感染触发儿童泛发性脓疱性银屑病的新机制[J].陆军军医大学学报,2025,47(23):2953-2962.DOI:10.16016/j.2097-0927.202509092. DOI:
SUN Y N,ZHOU J H,LIU Y Q,et al.Loss-of-function MAVS mutation causes antiviral immunodeficiency: unveiling a novel mechanism linking viral infection to generalized pustular psoriasis in children[J].J Army Med Univ,2025,47(23):2953-2962.DOI:10.16016/j.2097-0927.202509092. DOI:
目的
2
探究线粒体抗病毒蛋白(mitochondrial antiviral signaling protein,MAVS)在病毒感染诱发儿童泛发性脓疱性银屑病(generalized pustular psoriasis,GPP)中的作用。
方法
2
本研究是一项病例对照研究,招募了于2013年10月至2019年4月在重庆医科大学附属儿童医院皮肤科就诊的0~18岁GPP患儿。采用外显子组测序技术挖掘与GPP相关的
MAVS
罕见基因变异,并通过Mutation Taster、 Disease association、SIFT、CADD 4种生物信息学软件预测变异的有害性。采用Sanger测序验证外显子组测序的结果,构建
MAVS
野生型和突变型表达质粒,并在人胚胎肾(human embryonic kidney 293,HEK 293)细胞中过表达,采用Western blot测量MAVS蛋白水平的差异。采用双荧光素酶报告基因实验测量
MAVS
野生型与突变型在激活IFNB1及NF-κB转录活性方面的差异。采用Fisher精确检验统计、整理GPP组与对照组在
MAVS
基因c.171dupT/p.57His frameshift变异位点的基因型分布。
结果
2
本研究纳入了80例0~18岁GPP患儿,采用外显子组测序技术共发现5种
MAVS
基因的罕见变异,生物信息学工具软件预测分析显示突变会损害蛋白质稳定性与功能;Western blot结果表明GPP患儿携带的MAVS罕见变异c.171dupT突变导致全长MAVS蛋白表达量减少(
P
<
0.001);双荧光素酶报告基因实验结果表明,c.171dupT突变导致
MAVS
诱导IFNB1转录活性的能力显著下降(
P
<
0.001),且激活NF-κB信号通路的能力丧失(
P
<
0.001),但不会干扰野生型
MAVS
的功能(
P>
0.05)。
结论
2
GPP患者携带的MAVS罕见变异c.171dupT可能参与感染触发的儿童GPP,有助于确定
MAVS
基因变异作为GPP患者潜在的遗传标记的作用。
Objective To investigate the role of mitochondrial antiviral signaling protein (MAVS) in viral infection-triggered generalized pustular psoriasis (GPP) in children. Methods This retrospective case-control study enrolled 80 GPP patients aged 0~18 years from Children’s Hospital of Chongqing Medical University (from October 2013 to April 2019). Whole-exome sequencing identified rare MAVS variants associated with GPP. Pathogenicity of variants was predicted using Mutation Taster
Disease Association
SIFT
and CADD bioinformatics tools. Sanger sequencing validated variants
followed by construction of wild-type (WT) and mutant
MAVS
expression plasmids transfected into HEK 293 cells. Protein expression was assessed by Western blot. Dual-luciferase reporter gene assays measured IFNB1 and NF-κB transcriptional activity. Genotype distribution of the
MAVS
c.171d
upT/p.H57fs variant was analyzed using Fisher’s exact test. Results This study enrolled 80 pediatric GPP patients (aged 0~18 years). Whole-exome sequencing identified five rare
MAVS
variants
with bioinformatics analyses predicting deleterious effects on protein stability and function. Western blot demonstrated that the c.171dupT mutation in GPP patients significantly reduced full-length MAVS expression (
P
<
0.001); dual-luciferase assays further revealed this variant impaired
MAVS
-mediated IFNB1 transcriptional activation by 85% (
P
<
0.001)
abrogated NF-κB signaling pathway activation (
P
<
0.001)
but exhibited no dominant-negative effect on wild-type
MAVS
function(
P>
0.05). Conclusion The MAVS c.171dupT frameshift variant may contribute to infection-triggered GPP in children
suggesting its potential as a genetic biomarker for GPP susceptibility.
NAVARINI A A , BURDEN A D , CAPON F , et al . European consensus statement on phenotypes of pustular psoriasis [J]. J Eur Acad Dermatol Venereol , 2017 , 31 ( 11 ): 1792 - 1799 . DOI: 10.1111/jdv.14386 http://dx.doi.org/10.1111/jdv.14386 .
HALEVY S . Acute generalized exanthematous pustulosis [J]. Curr Opin Allergy Clin Immunol , 2009 , 9 ( 4 ): 322 - 328 . DOI: 10.1097/aci.0b013e32832cf64e http://dx.doi.org/10.1097/aci.0b013e32832cf64e .
BAKER H , RYAN T J . Generalized pustular psoriasis.: a clinical and epidemiologicai. study of 104 cases [J]. Br J Dermatol , 1968 , 80 ( 12 ): 771 - 793 . DOI: 10.1111/j.1365-2133.1968.tb11947.x http://dx.doi.org/10.1111/j.1365-2133.1968.tb11947.x .
JIN H , CHO H H , KIM W J , et al . Clinical features and course of generalized pustular psoriasis in Korea [J]. J Dermatol , 2015 , 42 ( 7 ): 674 - 678 . DOI: 10.1111/1346-8138.12863 http://dx.doi.org/10.1111/1346-8138.12863 .
CHOON S E , LAI N M , MOHAMMAD N A , et al . Clinical profile, morbidity, and outcome of adult-onset generalized pustular psoriasis: analysis of 102 cases seen in a tertiary hospital in Johor, Malaysia [J]. Int J Dermatol , 2014 , 53 ( 6 ): 676 - 684 . DOI: 10.1111/ijd.12070 http://dx.doi.org/10.1111/ijd.12070 .
BACHELEZ H , BARKER J , BURDEN A D , et al . Generalized pustular psoriasis is a disease distinct from psoriasis vulgaris: evidence and expert opinion [J]. Expert Rev Clin Immunol , 2022 , 18 ( 10 ): 1033 - 1047 . DOI: 10.1080/1744666X.2022.2116003 http://dx.doi.org/10.1080/1744666X.2022.2116003 .
ABBOUD E , CHRAYTEH D , BOUSSETTA N , et al . Skin hepcidin initiates psoriasiform skin inflammation via Fe-driven hyperproliferation and neutrophil recruitment [J]. Nat Commun , 2024 , 15 : 6718 . DOI: 10.1038/s41467-024-50993-8 http://dx.doi.org/10.1038/s41467-024-50993-8 .
LIM L Y , OON H H . Gastrointestinal and hepatic manifestations in patients with generalised pustular psoriasis [J]. Exp Dermatol , 2023 , 32 ( 8 ): 1246 - 1252 . DOI: 10.1111/exd.14766 http://dx.doi.org/10.1111/exd.14766 .
HAYAMA K , IWASAKI R , TIAN Y H , et al . Factors associated with generalized pustular psoriasis progression among patients with psoriasis vulgaris in Japan: Results from a claims database study [J]. J Dermatol , 2023 , 50 ( 12 ): 1531 - 1538 . DOI: 10.1111/1346-8138.16949 http://dx.doi.org/10.1111/1346-8138.16949 .
CHOON S E , VAN DE KERKHOF P , GUDJONSSON J E , et al . International consensus definition and diagnostic criteria for generalized pustular psoriasis from the international psoriasis council [J]. JAMA Dermatol , 2024 , 160 ( 7 ): 758 . DOI: 10.1001/jamadermatol.2024.0915 http://dx.doi.org/10.1001/jamadermatol.2024.0915 .
MARRAKCHI S , GUIGUE P , RENSHAW B R , et al . Interleukin-36-receptor antagonist deficiency and generalized pustular psoriasis [J]. N Engl J Med , 2011 , 365 ( 7 ): 620 - 628 . DOI: 10.1056/NEJMoa1013068 http://dx.doi.org/10.1056/NEJMoa1013068 .
ONOUFRIADIS A , SIMPSON M A , PINK A E , et al . Mutations in IL36RN/IL1F5 are associated with the severe episodic inflammatory skin disease known as generalized pustular psoriasis [J]. Am J Hum Genet , 2011 , 89 ( 3 ): 432 - 437 . DOI: 10.1016/j.ajhg.2011.07.022 http://dx.doi.org/10.1016/j.ajhg.2011.07.022 .
HUSSAIN S , BERKI D M , CHOON S E , et al . IL36RN mutations define a severe autoinflammatory phenotype of generalized pustular psoriasis [J]. J Allergy Clin Immunol , 2015 , 135 ( 4 ): 1067 - 1070.e9 . DOI: 10.1016/j.jaci.2014. 09.043 http://dx.doi.org/10.1016/j.jaci.2014.09.043 .
MORITA A , STROBER B , BURDEN A D , et al . Efficacy and safety of subcutaneous spesolimab for the prevention of generalised pustular psoriasis flares (Effisayil 2): an international, multicentre, randomised, placebo-controlled trial [J]. Lancet , 2023 , 402 ( 10412 ): 1541 - 1551 . DOI: 10.1016/S0140-6736(23)01378-8 http://dx.doi.org/10.1016/S0140-6736(23)01378-8 .
LI L , YOU J , FU X , et al . Variants of CARD14 are predisposing factors for generalized pustular psoriasis (GPP) with psoriasis vulgaris but not for GPP alone in a Chinese population [J]. Br J Dermatol , 2019 , 180 ( 2 ): 425 - 426 . DOI: 10.1111/bjd.17392 http://dx.doi.org/10.1111/bjd.17392 .
SUGIURA K , MUTO M , AKIYAMA M . CARD14 c.526G>C (p.Asp176His) is a significant risk factor for generalized pustular psoriasis with psoriasis vulgaris in the Japanese cohort [J]. J Invest Dermatol , 2014 , 134 ( 6 ): 1755 - 1757 . DOI: 10.1038/jid.2014.46 http://dx.doi.org/10.1038/jid.2014.46 .
JORDAN C T , CAO L , ROBERSON E D O , et al . PSORS2 is due to mutations in CARD14 [J]. Am J Hum Genet , 2012 , 90 ( 5 ): 784 - 795 . DOI: 10.1016/j.ajhg.2012.03.012 http://dx.doi.org/10.1016/j.ajhg.2012.03.012 .
SETTA-KAFFETZI N , SIMPSON M A , NAVARINI A A , et al . AP1S3 mutations are associated with pustular psoriasis and impaired Toll-like receptor 3 trafficking [J]. Am J Hum Genet , 2014 , 94 ( 5 ): 790 - 797 . DOI: 10.1016/j.ajhg.2014. 04.005 http://dx.doi.org/10.1016/j.ajhg.2014.04.005 .
MAHIL S K , TWELVES S , FARKAS K , et al . AP1S3 mutations cause skin autoinflammation by disrupting keratinocyte autophagy and up-regulating IL-36 production [J]. J Invest Dermatol , 2016 , 136 ( 11 ): 2251 - 2259 . DOI: 10.1016/j.jid.2016.06.618 http://dx.doi.org/10.1016/j.jid.2016.06.618 .
FREY S , STICHT H , WILSMANN-THEIS D , et al . Rare loss-of-function mutation in SERPINA3 in generalized pustular psoriasis [J]. J Invest Dermatol , 2020 , 140 ( 7 ): 1451 - 1455.e13 . DOI: 10.1016/j.jid.2019.11.024 http://dx.doi.org/10.1016/j.jid.2019.11.024 .
HASKAMP S , BRUNS H , HAHN M , et al . Myeloperoxidase modulates inflammation in generalized pustular psoriasis and additional rare pustular skin diseases [J]. Am J Hum Genet , 2020 , 107 ( 3 ): 527 - 538 . DOI: 10.1016/j.ajhg.2020.07.001 http://dx.doi.org/10.1016/j.ajhg.2020.07.001 .
VERGNANO M , MOCKENHAUPT M , BENZIAN-OLSSON N , et al . Loss-of-function myeloperoxidase mutations are associated with increased neutrophil counts and pustular skin disease [J]. Am J Hum Genet , 2020 , 107 ( 3 ): 539 - 543 . DOI: 10.1016/j.ajhg.2020.06.020 http://dx.doi.org/10.1016/j.ajhg.2020.06.020 .
IIZUKA H , TAKAHASHI H , ISHIDA-YAMAMOTO A . Pathophysiology of generalized pustular psoriasis [J]. Arch Dermatol Res , 2003 , 295 ( Suppl 1 ): S55 - S59 . DOI: 10.1007/s00403-002-0372-5 http://dx.doi.org/10.1007/s00403-002-0372-5 .
WANG Y R , CHENG R H , LU Z Y , et al . Clinical profiles of pediatric patients with GPP alone and with different IL36RN genotypes [J]. J Dermatol Sci , 2017 , 85 ( 3 ): 235 - 240 . DOI: 10.1016/j.jdermsci.2016.11.008 http://dx.doi.org/10.1016/j.jdermsci.2016.11.008 .
ZAMORANO CUERVO N , OSSEMAN Q , GRANDVAUX N . Virus infection triggers MAVS polymers of distinct molecular weight [J]. Viruses , 2018 , 10 ( 2 ): 56 . DOI: 10.3390/v10020056 http://dx.doi.org/10.3390/v10020056 .
HOU F J , SUN L J , ZHENG H , et al . MAVS forms functional prion-like aggregates to activate and propagate antiviral innate immune response [J]. Cell , 2011 , 146 ( 3 ): 448 - 461 . DOI: 10.1016/j.cell.2011.06.041 http://dx.doi.org/10.1016/j.cell.2011.06.041 .
SETH R B , SUN L J , EA C K , et al . Identification and characterization of MAVS, a mitochondrial antiviral signaling protein that activates NF-kappaB and IRF 3 [J]. Cell , 2005 , 122 ( 5 ): 669 - 682 . DOI: 10.1016/j.cell.2005. 08.012 http://dx.doi.org/10.1016/j.cell.2005.08.012 .
FUJITA H , TERUI T , HAYAMA K , et al . Japanese guidelines for the management and treatment of generalized pustular psoriasis: The new pathogenesis and treatment of GPP [J]. J Dermatol , 2018 , 45 ( 11 ): 1235 - 1270 . DOI: 10.1111/1346-8138.14523 http://dx.doi.org/10.1111/1346-8138.14523 .
LI J X , ZHANG R , WANG C W , et al . WDR77 inhibits prion-like aggregation of MAVS to limit antiviral innate immune response [J]. Nat Commun , 2023 , 14 ( 1 ): 4824 . DOI: 10.1038/s41467-023-40567-5 http://dx.doi.org/10.1038/s41467-023-40567-5 .
SCHWARZ J M , RÖDELSPERGER C , SCHUELKE M , et al . MutationTaster evaluates disease-causing potential of sequence alterations [J]. Nat Methods , 2010 , 7 ( 8 ): 575 - 576 . DOI: 10.1038/nmeth0810-575 http://dx.doi.org/10.1038/nmeth0810-575 .
NG P C , HENIKOFF S . SIFT: Predicting amino acid changes that affect protein function [J]. Nucleic Acids Res , 2003 , 31 ( 13 ): 3812 - 3814 . DOI: 10.1093/nar/gkg509 http://dx.doi.org/10.1093/nar/gkg509 .
RENTZSCH P , WITTEN D , COOPER G M , et al . CADD: predicting the deleteriousness of variants throughout the human genome [J]. Nucleic Acids Res , 2019 , 47 ( D1 ): D886 - D894 . DOI: 10.1093/nar/gky1016 http://dx.doi.org/10.1093/nar/gky1016 .
LANDRUM M J , LEE J M , BENSON M , et al . ClinVar: public archive of interpretations of clinically relevant variants [J]. Nucleic Acids Res , 2016 , 44 ( D1 ): D862 - D868 . DOI: 10.1093/nar/gkv1222 http://dx.doi.org/10.1093/nar/gkv1222 .
BURNS K , JANSSENS S , BRISSONI B , et al . Inhibition of interleukin 1 receptor/Toll-like receptor signaling through the alternatively spliced, short form of MyD88 is due to its failure to recruit IRAK-4 [J]. J Exp Med , 2003 , 197 ( 2 ): 263 - 268 . DOI: 10.1084/jem.20021790 http://dx.doi.org/10.1084/jem.20021790 .
PALSSON-MCDERMOTT E M , DOYLE S L , MCGETTRICK A F , et al . TAG, a splice variant of the adaptor TRAM, negatively regulates the adaptor MyD88-independent TLR4 pathway [J]. Nat Immunol , 2009 , 10 ( 6 ): 579 - 586 . DOI: 10.1038/ni.1727 http://dx.doi.org/10.1038/ni.1727 .
GUTTMAN M , RUSSELL P , INGOLIA N T , et al . Ribosome profiling provides evidence that large noncoding RNAs do not encode proteins [J]. Cell , 2013 , 154 ( 1 ): 240 - 251 . DOI: 10.1016/j.cell.2013.06.009 http://dx.doi.org/10.1016/j.cell.2013.06.009 .
INGOLIA N T , LAREAU L F , WEISSMAN J S . Ribosome profiling of mouse embryonic stem cells reveals the complexity and dynamics of mammalian proteomes [J]. Cell , 2011 , 147 ( 4 ): 789 - 802 . DOI: 10.1016/j.cell.2011.10.002 http://dx.doi.org/10.1016/j.cell.2011.10.002 .
BRUBAKER S W , GAUTHIER A E , MILLS E W , et al . A bicistronic MAVS transcript highlights a class of truncated variants in antiviral immunity [J]. Cell , 2014 , 156 ( 4 ): 800 - 811 . DOI: 10.1016/j.cell.2014.01.021 http://dx.doi.org/10.1016/j.cell.2014.01.021 .
DEMPSEY L A . Regulating mavs [J]. Nat Immunol , 2019 , 20 ( 2 ): 111 . DOI: 10.1038/s41590-018-0309-6 http://dx.doi.org/10.1038/s41590-018-0309-6 .
QI N , SHI Y H , ZHANG R , et al . Multiple truncated isoforms of MAVS prevent its spontaneous aggregation in antiviral innate immune signalling [J]. Nat Commun , 2017 , 8 : 15676 . DOI: 10.1038/ncomms15676 http://dx.doi.org/10.1038/ncomms15676 .
LEI Y , MOORE C B , LIESMAN R M , et al . MAVS-mediated apoptosis and its inhibition by viral proteins [J]. PLoS One , 2009 , 4 ( 5 ): e5466 . DOI: 10.1371/journal.pone.0005466 http://dx.doi.org/10.1371/journal.pone.0005466 .
REN Z H , DING T , ZUO Z C , et al . Regulation of MAVS expression and signaling function in the antiviral innate immune response [J]. Front Immunol , 2020 , 11 : 1030 . DOI: 10.3389/fimmu.2020.01030 http://dx.doi.org/10.3389/fimmu.2020.01030 .
KVANSAKUL M . Viral infection and apoptosis [J]. Viruses , 2017 , 9 ( 12 ): 356 . DOI: 10.3390/v9120356 http://dx.doi.org/10.3390/v9120356 .
ZHOU X C , JIANG W B , LIU Z S , et al . Virus infection and death receptor-mediated apoptosis [J]. Viruses , 2017 , 9 ( 11 ): 316 . DOI: 10.3390/v9110316 http://dx.doi.org/10.3390/v9110316 .
LENARDO M J , FAN C M , MANIATIS T , et al . The involvement of NF-kappa B in beta-interferon gene regulation reveals its role as widely inducible mediator of signal transduction [J]. Cell , 1989 , 57 ( 2 ): 287 - 294 . DOI: 10.1016/0092-8674(89)90966-5 http://dx.doi.org/10.1016/0092-8674(89)90966-5 .
0
浏览量
0
下载量
0
CSCD
关联资源
相关文章
相关作者
相关机构
京公网安备11010802024621