在DOCK11缺乏症中,系统性炎症和正常细胞性贫血
Jana Block1, Christina Rashkova1, Irinka Castanon1
1From St. Anna Children's Cancer Research Institute (CCRI) (J.B., C.R., I.C., S.Z., R.C.A., R.J.H., S.K.B., B.R., E.S., M.D., L.K., K.B.), the Ludwig Boltzmann Institute for Rare and Undiagnosed Diseases (J.B., C.R., I.C., S.Z., R.C.A., R.J.H., S.K.B., L.P., B.R., A.-K.M., C.D.C., E.S., C.B., L.D., K.B.), CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences (J.B., C.R., S.Z., R.C.A., R.J.H., S.K.B., B.R., A.T., M.C., M.S., C.D.C., E.S., J.M., C.B., J.T.H., K.B.), and the Departments of Pediatrics and Adolescent Medicine (C.R., R.J.H., E.S., L.K., K.B.) and Dermatology (A.-K.M., L.D.), the Institute for Hygiene and Applied Immunology (R.P., J.B.H.) and the Institute of Immunology (W.F.P.), Center for Pathophysiology, Infectiology, and Immunology, and the Institute of Artificial Intelligence, Center for Medical Data Science (C.B.), Medical University of Vienna, the St. Anna Children's Hospital (E.S., L.K., K.B.), the Department of Structural and Computational Biology, Max Perutz Labs, and the Faculty of Mathematics, University of Vienna (J.M.), Vienna, and the Karl Landsteiner University of Health Sciences, Krems (W.F.P.) - all in Austria; Hématopoïèse et Immunologie (HEMATIM) Unité de Recherche 4666, Université de Picardie Jules Verne (J.P., T.B., L.D.C.), and Service d'Hématologie Biologique (Hematology Diagnostic Lab), Centre Hospitalier Universitaire d'Amiens (T.B.), Amiens, Toulouse Institute for Infectious and Inflammatory Diseases, INSERM and Paul Sabatier University (Unité Mixte de Recherche 1291), and Centre National de la Recherche Scientifique (Unité Mixte de Recherche 5051) (B.C., L.P., L.D.), and the Institute of Cardiovascular and Metabolic Diseases (I2MC), INSERM and Paul Sabatier University (Unité Mixte de Recherche 1297) (J.V.), Toulouse, and Service d'Hématologie Biologique (Hematology Diagnostic Lab), Assistance Publique-Hôpitaux de Paris, Hôpital Robert Debré, the University of Paris, and the Laboratory of Excellence for Red Cells, Laboratory of Excellence GR-Ex, Paris (L.D.C.) - all in France; the Biosafety Division, Research Institute, National Center for Geriatrics and Gerontology, Obu, Japan (M.F., R.K., A.N.); the National Institute of Science and Technology on Neuroimmunomodulation, Oswaldo Cruz Institute, Oswaldo Cruz Foundation (Fiocruz), Rio de Janeiro, and the Computational Modeling Group, Oswaldo Cruz Foundation (Fiocruz), Eusébio - both in Brazil (B.C.); the Molecular Cell Biology Lab, Department of Molecular Hematology, Sanquin Research, the Vascular Cell Biology Lab, Department of Medical Biochemistry, Amsterdam University Medical Centers, University of Amsterdam, and the Leeuwenhoek Center for Advanced Microscopy, Section of Molecular Cytology, Swammerdam Institute for Life Sciences, University of Amsterdam, Amsterdam (R.S., J.D.B.), the Department of Human Genetics (C.I.M., H.G.B., A.H.) and the Radboud University Medical Center for Infectious Diseases, Department of Internal Medicine, Radboud University Medical Center, Nijmegen (C.I.M., A.H.), the Department of Clinical Genetics, Maastricht University Medical Center, and GROW School for Oncology and Reproduction, Maastricht University, Maastricht (H.G.B.), and the Department of Pediatrics, Slingeland Hospital, Doetinchem (J.E.N.-F.) - all in the Netherlands; the Institute of Human Genetics, University Medical Center Hamburg-Eppendorf, Hamburg (F.L.H., K.K.), University Children's Hospital Oldenburg, Department of Neuropediatrics, Oldenburg (T.L., S.I.), and the Center for Pediatrics and Adolescent Medicine, Department of Pediatric Kidney, Liver, and Metabolic Diseases and Neuropediatrics, Hannover Medical School, Hannover (S.I.) - all in Germany; the Pediatric Congenital Hematologic Disorders Research Center, Research Institute for Children's Health (S.A.), and the Allergy and Clinical Immunology Department, Mofid Children's Hospital (Z.C.), Shahid Beheshti University of Medical Sciences, Tehran, Iran; the Clinical Immunology and Primary Immunodeficiencies Unit, Allergy and Clinical Immunology Department (L.A., A.D.-M.), and the Pediatric Rheumatology Department (E.I., J.A., J.C.-H.), Hospital Sant Joan de Déu, the Study Group for Immune Dysfunction Diseases in Children, Institut de Recerca Sant Joan de Déu (L.A., E.I., A.D.-M., J.A., J.C.-H.), and the Department of Surgery and Surgical Specializations, Facultat de Medicina i Ciències de la Salut, Universitat de Barcelona (L.A., J.A.), Barcelona, and the Pediatric Infectious Diseases, Rheumatology, and Immunology Unit (P.S.M., M.C.-L., O.N.) and the Department of Pathology (R.Á.P., R.C.-P.), Hospital Universitario Virgen del Rocío, Institute of Biomedicine of Seville, Seville - all in Spain; the Department of Molecular Biomedical Sciences, North Carolina State University, Raleigh (J.A.Y.); the Department of Cellular and Molecular Medicine and the Section of Cell and Developmental Biology, University of California, San Diego, La Jolla (D.T.); and the Primary Immunodeficiency Group, Newcastle University Translational and Clinical Research Institute, Newcastle upon Tyne, United Kingdom (K.R.E., S.H.).
细胞动力学11 (DOCK11) 标记物的遗传缺陷会导致一种新的免疫性疾病. 这个actin调节器.
科学领域:
- 免疫学 免疫学 免疫学
- 遗传学 遗传学 是一个
- 细胞生物学 细胞生物学
背景情况:
- 活性蛋白调节蛋白的遗传缺陷与严重的自身免疫和自身炎症性疾病有关.
- 细胞动力学11分辨器 (DOCK11) 激活细胞分裂循环42 (CDC42),这是actin动态的一个关键调节器.
- 目前尚不清楚DOCK11在人类免疫细胞和疾病中的作用.
研究的目的:
- 研究DOCK11在人类免疫细胞功能和疾病中的作用.
- 确定严重自身免疫和自身炎症背后的分子机制,与行为蛋白调节蛋白缺陷相关.
主要方法:
- 基因,免疫和分子测定在四名来自不同家庭的患者身上进行.
- 功能性测试使用患者衍生细胞和小鼠/斑马鱼模型.
- 分析包括遗传突变识别,蛋白质表达,CDC42激活,细胞迁移,细胞因子生产和贫血评估.
主要成果:
- 在DOCK11中发现了罕见的X链接生殖系突变,导致蛋白质表达丧失或CDC42激活受损.
- 患者的T细胞表现出缺陷的菲洛波迪亚形成,异常的迁移,以及随着促炎性细胞因子的产生而增加的激活.
- 一个DOCK11淘汰赛斑马鱼模型重现了贫血和异常的红细胞形态,该模型被活跃的CDC42拯救了.
结论:
- 在DOCK11中发生的生殖线功能丧失突变会导致血液形成和免疫的新型先天性错误.
- 这种疾病的特点是严重的免疫失调,全身炎症,复发性感染和贫血.
- DOCK11对于正常的免疫细胞功能和血液形成至关重要.
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