1
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Aigner-Radakovics K, De Sousa Linhares A, Salzer B, Lehner M, Izadi S, Castilho A, Pickl WF, Leitner J, Steinberger P. The ligand-dependent suppression of TCR signaling by the immune checkpoint receptor LAG3 depends on the cytoplasmic RRFSALE motif. Sci Signal 2023; 16:eadg2610. [PMID: 37788323 DOI: 10.1126/scisignal.adg2610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Accepted: 08/30/2023] [Indexed: 10/05/2023]
Abstract
Lymphocyte activation gene 3 (LAG3) is an inhibitory immune checkpoint receptor that restrains autoimmune and antitumor responses, but its evolutionarily conserved cytoplasmic tail lacks classical inhibitory motifs. Major histocompatibility complex class II (MHC class II) is an established LAG3 ligand, and fibrinogen-like protein 1 (FGL1), lymph node sinusoidal endothelial cell C-type lectin (LSECtin), and Galectin-3 have been proposed as alternative binding partners that play important roles in LAG3 function. Here, we used a fluorescent human T cell reporter system to study the function of LAG3. We found that LAG3 reduced the response to T cell receptor stimulation in the presence of MHC class II molecules to a lesser extent compared with the receptor programmed cell death protein 1. Analysis of deletion mutants demonstrated that the RRFSALE motif in the cytoplasmic tail of LAG3 was necessary and sufficient for LAG3-mediated inhibition. In this system, FGL1, but not LSECtin or Galectin-3, acted as a LAG3 ligand that weakly induced inhibition. LAG3-blocking antibodies attenuated LAG3-mediated inhibition in our reporter cells and enhanced reporter cell activation even in the absence of LAG3 ligands, indicating that they could potentially enhance T cell responses independently of their blocking effect.
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Affiliation(s)
- Katharina Aigner-Radakovics
- Medical University of Vienna, Center for Pathophysiology, Infectiology and Immunology, Institute of Immunology, Vienna, Austria
| | - Annika De Sousa Linhares
- Medical University of Vienna, Center for Pathophysiology, Infectiology and Immunology, Institute of Immunology, Vienna, Austria
| | - Benjamin Salzer
- Christian Doppler Laboratory for Next Generation CAR T Cells, Vienna, Austria
- St. Anna Children's Cancer Research Institute, Vienna, Austria
| | - Manfred Lehner
- Christian Doppler Laboratory for Next Generation CAR T Cells, Vienna, Austria
- St. Anna Children's Cancer Research Institute, Vienna, Austria
| | - Shiva Izadi
- Institute of Plant Biotechnology and Cell Biology (IPBT), Department of Applied Genetics and Cell Biology (DAGZ), University of Natural Resources and Life Sciences Vienna (BOKU), Vienna, Austria
| | - Alexandra Castilho
- Institute of Plant Biotechnology and Cell Biology (IPBT), Department of Applied Genetics and Cell Biology (DAGZ), University of Natural Resources and Life Sciences Vienna (BOKU), Vienna, Austria
| | - Winfried F Pickl
- Medical University of Vienna, Center for Pathophysiology, Infectiology and Immunology, Institute of Immunology, Vienna, Austria
- Karl Landsteiner University, Krems, Austria
| | - Judith Leitner
- Medical University of Vienna, Center for Pathophysiology, Infectiology and Immunology, Institute of Immunology, Vienna, Austria
| | - Peter Steinberger
- Medical University of Vienna, Center for Pathophysiology, Infectiology and Immunology, Institute of Immunology, Vienna, Austria
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2
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Zhang X, Wang Y, Pen D, Liu J, Zhou Q, Wang Y, Zhong H, Liu T, Chen W, Wu B, Zhou Y, Wang C, Li X, Yu F, Wang X, Lu G, Yan G. Diagnosis of mixed infection and a primary immunodeficiency disease using next-generation sequencing: a case report. Front Cell Infect Microbiol 2023; 13:1179090. [PMID: 37674579 PMCID: PMC10477990 DOI: 10.3389/fcimb.2023.1179090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Accepted: 08/07/2023] [Indexed: 09/08/2023] Open
Abstract
Major Histocompatibility Complex Class II (MHC II) deficiency is a rare primary immunodeficiency disorder (PID) with autosomal recessive inheritance pattern. The outcome is almost fatal owing to delayed diagnosis and lacking of effective therapy. Therefore, prompt diagnosis, timely and effective treatment are critical. Here, we report a 117-day-old boy with diarrhea, cough, cyanosis and tachypnea who was failed to be cured by empiric antimicrobial therapy initially and progressed to severe pneumonia and respiratory failure. The patient was admitted to the pediatric intensive care unit (PICU) immediately and underwent a series of tests. Blood examination revealed elevated levels of inflammatory markers and cytomegalovirus DNA. Imaging findings showed signs of severe infection of lungs. Finally, the diagnosis was obtained mainly through next-generation sequencing (NGS). We found out what pathogenic microorganism he was infected via repeated conventional detection methods and metagenomic next-generation sequencing (mNGS) of sputum and bronchoalveolar lavage fluid (BALF). And his whole exome sequencing (WES) examination suggested that CIITA gene was heterozygous mutation, a kind of MHC II deficiency diseases. After aggressive respiratory support and repeated adjustment of antimicrobial regimens, the patient was weaned from ventilator on the 56th day of admission and transferred to the immunology ward on the 60th day. The patient was successful discharged after hospitalizing for 91 days, taking antimicrobials orally to prevent infections post-discharge and waiting for stem cell transplantation. This case highlights the potential importance of NGS in providing better diagnostic testing for unexplained infection and illness. Furthermore, pathogens would be identified more accurately if conventional detection techniques were combined with mNGS.
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Affiliation(s)
- Xiaolei Zhang
- Department of Pediatric Intensive Care Unit, Children’s Hospital of Fudan University, Shanghai, China
| | - Yixue Wang
- Department of Pediatric Intensive Care Unit, Children’s Hospital of Fudan University, Shanghai, China
| | - Daly Pen
- Department of Pediatric Intensive Care Unit, Angkor Hospital for Children, Siem Reap, Cambodia
| | - Jing Liu
- Department of Pediatric Intensive Care Unit, Children’s Hospital of Fudan University, Shanghai, China
| | - Qinhua Zhou
- Department of Allergy and Clinical Immunology, Children’s Hospital of Fudan University, Shanghai, China
| | - Yao Wang
- Department of Pediatric Intensive Care Unit, Children’s Hospital of Fudan University, Shanghai, China
| | - Huaqing Zhong
- Department of Pediatric Institute, Children’s Hospital of Fudan University, Shanghai, China
| | - Tingyan Liu
- Department of Pediatric Intensive Care Unit, Children’s Hospital of Fudan University, Shanghai, China
| | - Weiming Chen
- Department of Pediatric Intensive Care Unit, Children’s Hospital of Fudan University, Shanghai, China
| | - Bingbing Wu
- Shanghai Key Laboratory of Birth Defects, Children’s Hospital of Fudan University, Shanghai, China
- National Health Commision Key Laboratory of Neonatal Diseases, Children’s Hospital of Fudan University, Shanghai, China
| | - Yang Zhou
- Clinical Research Department, BGI PathoGenesis Pharmaceutical Technology Co., Ltd, BGI-Shenzhen, Shenzhen, China
| | - Chuanqing Wang
- Clinical Microbiology Laboratory, Department of Nosocomial Infection Control, Children’s Hospital of Fudan University, Shanghai, China
| | - Xiangyu Li
- Department of Laboratory Medicine, Huashan Hospital North, Fudan University, Shanghai, China
| | - Fangyou Yu
- Shanghai Key Laboratory of Tuberculosis, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, China
| | - Xiaochuan Wang
- Department of Allergy and Clinical Immunology, Children’s Hospital of Fudan University, Shanghai, China
| | - Guoping Lu
- Department of Pediatric Intensive Care Unit, Children’s Hospital of Fudan University, Shanghai, China
| | - Gangfeng Yan
- Department of Pediatric Intensive Care Unit, Children’s Hospital of Fudan University, Shanghai, China
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3
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Cai YQ, Zhang H, Wang XZ, Xu C, Chao YQ, Shu Y, Tang LF. A Novel RFXANK Mutation in a Chinese Child With MHC II Deficiency: Case Report and Literature Review. Open Forum Infect Dis 2020; 7:ofaa314. [PMID: 32875002 PMCID: PMC7452370 DOI: 10.1093/ofid/ofaa314] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Accepted: 07/17/2020] [Indexed: 12/04/2022] Open
Abstract
Major histocompatibility complex (MHC) II deficiency is a rare primary immunodeficiency disorder that is characterized by the deficiency of MHC class II molecules. The disease is caused by transcription factor mutations including class II transactivator (CIITA), regulatory factor X-5 (RFX5), RFX-associated protein (RFXAP), and RFXAP-containing ankyrin repeat (RFXANK), respectively. Mutations in the RFXANK gene account for >70% of all known patients worldwide. Herein, we reported a 10-month-old boy with MHC II deficiency caused by a novel mutation in the RFXANK gene (c.337 + 1G>C). The boy was admitted to the hospital due to pneumonia and diarrhea at 4 months of age. Genetic analysis revealed a novel homozygous mutation in the RFXANK gene, which derived from the c.337 + 1G>C heterozygous mutations in the RFXANK gene of his parents. The boy died 3 months after diagnosis. More than 200 cases have been reported, and a review of the literature revealed different mutation rates of 4 transcription factors in different countries or regions. This is the first case report of MHC II deficiency from East Asia. We also describe all gene mutations that cause MHC II deficiency and the epidemiology of MHC II deficiency with gene mutations in this paper.
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Affiliation(s)
- Yu Qing Cai
- Department of Pulmonology, Children's Hospital of Zhejiang University School of Medicine, Hangzhou, China.,Department of Endocrinology, Children's Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - HangHu Zhang
- Department of Pulmonology, Children's Hospital of Zhejiang University School of Medicine, Hangzhou, China.,Shaoxing People's Hospital, Shaoxing Hospital of Zhejiang University, Shaoxing, China
| | - Xiang Zhi Wang
- Department of Pulmonology, Children's Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - ChengYun Xu
- Department of Pulmonology, Children's Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Yun Qi Chao
- Department of Endocrinology, Children's Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - YingYing Shu
- Department of Endocrinology, Children's Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Lan Fang Tang
- Department of Pulmonology, Children's Hospital of Zhejiang University School of Medicine & National Clinical Research Center, Hangzhou, China
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4
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Conde CD, Petronczki ÖY, Baris S, Willmann KL, Girardi E, Salzer E, Weitzer S, Ardy RC, Krolo A, Ijspeert H, Kiykim A, Karakoc-Aydiner E, Förster-Waldl E, Kager L, Pickl WF, Superti-Furga G, Martínez J, Loizou JI, Ozen A, van der Burg M, Boztug K. Polymerase δ deficiency causes syndromic immunodeficiency with replicative stress. J Clin Invest 2020; 129:4194-4206. [PMID: 31449058 DOI: 10.1172/jci128903] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Accepted: 06/21/2019] [Indexed: 12/14/2022] Open
Abstract
Polymerase δ is essential for eukaryotic genome duplication and synthesizes DNA at both the leading and lagging strands. The polymerase δ complex is a heterotetramer comprising the catalytic subunit POLD1 and the accessory subunits POLD2, POLD3, and POLD4. Beyond DNA replication, the polymerase δ complex has emerged as a central element in genome maintenance. The essentiality of polymerase δ has constrained the generation of polymerase δ-knockout cell lines or model organisms and, therefore, the understanding of the complexity of its activity and the function of its accessory subunits. To our knowledge, no germline biallelic mutations affecting this complex have been reported in humans. In patients from 2 independent pedigrees, we have identified what we believe to be a novel syndrome with reduced functionality of the polymerase δ complex caused by germline biallelic mutations in POLD1 or POLD2 as the underlying etiology of a previously unknown autosomal-recessive syndrome that combines replicative stress, neurodevelopmental abnormalities, and immunodeficiency. Patients' cells showed impaired cell-cycle progression and replication-associated DNA lesions that were reversible upon overexpression of polymerase δ. The mutations affected the stability and interactions within the polymerase δ complex or its intrinsic polymerase activity. We believe our discovery of human polymerase δ deficiency identifies the central role of this complex in the prevention of replication-related DNA lesions, with particular relevance to adaptive immunity.
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Affiliation(s)
- Cecilia Domínguez Conde
- Ludwig Boltzmann Institute for Rare and Undiagnosed Diseases.,CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, and
| | - Özlem Yüce Petronczki
- Ludwig Boltzmann Institute for Rare and Undiagnosed Diseases.,CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, and.,St. Anna Children's Cancer Research Institute (CCRI), Vienna, Austria
| | - Safa Baris
- Pediatric Allergy and Immunology, Marmara University, Faculty of Medicine, Istanbul, Turkey.,Jeffrey Modell Diagnostic Center for Primary Immunodeficiency Diseases, Marmara University, Istanbul, Turkey
| | - Katharina L Willmann
- Ludwig Boltzmann Institute for Rare and Undiagnosed Diseases.,CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, and
| | - Enrico Girardi
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, and
| | - Elisabeth Salzer
- Ludwig Boltzmann Institute for Rare and Undiagnosed Diseases.,CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, and.,St. Anna Children's Cancer Research Institute (CCRI), Vienna, Austria.,St. Anna Children's Hospital, Department of Pediatrics and Adolescent Medicine, Vienna, Austria
| | - Stefan Weitzer
- Center for Medical Biochemistry, Medical University of Vienna, Vienna, Austria
| | - Rico Chandra Ardy
- Ludwig Boltzmann Institute for Rare and Undiagnosed Diseases.,CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, and.,St. Anna Children's Cancer Research Institute (CCRI), Vienna, Austria
| | - Ana Krolo
- Ludwig Boltzmann Institute for Rare and Undiagnosed Diseases.,CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, and.,St. Anna Children's Cancer Research Institute (CCRI), Vienna, Austria
| | - Hanna Ijspeert
- Department of Pediatrics, Laboratory for Immunology, Leiden University Medical Centre, Leiden, Netherlands
| | - Ayca Kiykim
- Pediatric Allergy and Immunology, Marmara University, Faculty of Medicine, Istanbul, Turkey.,Jeffrey Modell Diagnostic Center for Primary Immunodeficiency Diseases, Marmara University, Istanbul, Turkey
| | - Elif Karakoc-Aydiner
- Pediatric Allergy and Immunology, Marmara University, Faculty of Medicine, Istanbul, Turkey.,Jeffrey Modell Diagnostic Center for Primary Immunodeficiency Diseases, Marmara University, Istanbul, Turkey
| | - Elisabeth Förster-Waldl
- Department of Neonatology, Pediatric Intensive Care and Neuropediatrics, Department of Pediatrics and Adolescent Medicine
| | - Leo Kager
- St. Anna Children's Hospital, Department of Pediatrics and Adolescent Medicine, Vienna, Austria
| | - Winfried F Pickl
- Institute of Immunology, Center for Pathophysiology, Infectiology and Immunology, and
| | - Giulio Superti-Furga
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, and.,Center for Physiology and Pharmacology, Medical University of Vienna, Vienna, Austria
| | - Javier Martínez
- Center for Medical Biochemistry, Medical University of Vienna, Vienna, Austria
| | - Joanna I Loizou
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, and
| | - Ahmet Ozen
- Pediatric Allergy and Immunology, Marmara University, Faculty of Medicine, Istanbul, Turkey.,Jeffrey Modell Diagnostic Center for Primary Immunodeficiency Diseases, Marmara University, Istanbul, Turkey
| | - Mirjam van der Burg
- Department of Pediatrics, Laboratory for Immunology, Leiden University Medical Centre, Leiden, Netherlands
| | - Kaan Boztug
- Ludwig Boltzmann Institute for Rare and Undiagnosed Diseases.,CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, and.,St. Anna Children's Cancer Research Institute (CCRI), Vienna, Austria.,St. Anna Children's Hospital, Department of Pediatrics and Adolescent Medicine, Vienna, Austria
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5
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Farrokhi S, Shabani M, Aryan Z, Zoghi S, Krolo A, Boztug K, Rezaei N. MHC class II deficiency: Report of a novel mutation and special review. Allergol Immunopathol (Madr) 2018; 46:263-275. [PMID: 28676232 DOI: 10.1016/j.aller.2017.04.006] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2017] [Revised: 04/08/2017] [Accepted: 04/20/2017] [Indexed: 11/29/2022]
Abstract
The MHC II deficiency is a rare autosomal recessive primary immunodeficiency syndrome with increased susceptibility to respiratory and gastrointestinal infections, failure to thrive and early mortality. This syndrome is caused by mutations in transcription regulators of the MHC II gene and results in development of blind lymphocytes due to the lack of indicatory MHC II molecules. Despite homogeneity of clinical manifestations of patients with MHC II deficiency, the genetic defects underlying this disease are heterogeneous. Herein, we report an Iranian patient with MHC II deficiency harbouring a novel mutation in RFXANK and novel misleading clinical features. He had ataxic gait and dysarthria from 30 months of age. Epidemiology, clinical and immunological features, therapeutic options and prognosis of patients with MHC II are reviewed in this paper.
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Affiliation(s)
- S Farrokhi
- Department of Immunology, Asthma and Allergy, The Persian Gulf Tropical Medicine Research Center, Bushehr University of Medical Sciences, Bushehr, Iran
| | - M Shabani
- Research Center for Immunodeficiencies, Pediatrics Center of Excellence, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran; Primary Immunodeficiency Diseases Network (PIDNet), Universal Scientific Education and Research Network (USERN), Tehran, Iran; Network of Immunity in Infection, Malignancy and Autoimmunity (NIIMA), Universal Scientific Education and Research Network (USERN), Boston, MA, USA
| | - Z Aryan
- Research Center for Immunodeficiencies, Pediatrics Center of Excellence, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran; Pediatric Respiratory Diseases Education and Research Network (PRDERN), Universal Scientific Education and Research Network (USERN), Tehran, Iran
| | - S Zoghi
- Research Center for Immunodeficiencies, Pediatrics Center of Excellence, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran; Primary Immunodeficiency Diseases Network (PIDNet), Universal Scientific Education and Research Network (USERN), Tehran, Iran
| | - A Krolo
- CeMM Research Center of Molecular Medicine, Austrian Academy of Sciences, and Division of Neonatal Medicine and Intensive Care, Department of Pediatrics and Adolescent Medicine, Medical University Vienna, Vienna, Austria; Ludwig Boltzmann Institute for Rare and Undiagnosed Diseases, Vienna, Austria; Department of Pediatrics and Adolescent Medicine, Medical University of Vienna, Vienna, Austria; St Anna Kinderspital and Children's Cancer Research Institute, Department of Pediatrics, Medical University of Vienna, Vienna, Austria
| | - K Boztug
- CeMM Research Center of Molecular Medicine, Austrian Academy of Sciences, and Division of Neonatal Medicine and Intensive Care, Department of Pediatrics and Adolescent Medicine, Medical University Vienna, Vienna, Austria; Ludwig Boltzmann Institute for Rare and Undiagnosed Diseases, Vienna, Austria; Department of Pediatrics and Adolescent Medicine, Medical University of Vienna, Vienna, Austria; St Anna Kinderspital and Children's Cancer Research Institute, Department of Pediatrics, Medical University of Vienna, Vienna, Austria
| | - N Rezaei
- Research Center for Immunodeficiencies, Pediatrics Center of Excellence, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran; Department of Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran; Network of Immunity in Infection, Malignancy and Autoimmunity (NIIMA), Universal Scientific Education and Research Network (USERN), Boston, MA, USA.
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6
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Rosskopf S, Jutz S, Neunkirchner A, Candia MR, Jahn-Schmid B, Bohle B, Pickl WF, Steinberger P. Creation of an engineered APC system to explore and optimize the presentation of immunodominant peptides of major allergens. Sci Rep 2016; 6:31580. [PMID: 27539532 PMCID: PMC4990899 DOI: 10.1038/srep31580] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2016] [Accepted: 07/26/2016] [Indexed: 01/08/2023] Open
Abstract
We have generated engineered APC to present immunodominant peptides derived from the major aero-allergens of birch and mugwort pollen, Bet v 1142-153 and Art v 125-36, respectively. Jurkat-based T cell reporter lines expressing the cognate allergen-specific T cell receptors were used to read out the presentation of allergenic peptides on the engineered APC. Different modalities of peptide loading and presentation on MHC class II molecules were compared. Upon exogenous loading with allergenic peptides, the engineered APC elicited a dose-dependent response in the reporter T cells and the presence of chemical loading enhancers strongly increased reporter activation. Invariant chain-based MHC class II targeting strategies of endogenously expressed peptides resulted in stronger activation of the reporters than exogenous loading. Moreover, we used Bet v 1 as model allergen to study the ability of K562 cells to present antigenic peptides derived from whole proteins either taken up or endogenously expressed as LAMP-1 fusion protein. In both cases the ability of these cells to process and present peptides derived from whole proteins critically depended on the expression of HLA-DM. We have identified strategies to achieve efficient presentation of allergenic peptides on engineered APC and demonstrate their use to stimulate T cells from allergic individuals.
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Affiliation(s)
- Sandra Rosskopf
- Institute of Immunology, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Sabrina Jutz
- Institute of Immunology, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Alina Neunkirchner
- Institute of Immunology, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Martín R Candia
- Institute of Immunology, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Beatrice Jahn-Schmid
- Department of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Barbara Bohle
- Department of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Winfried F Pickl
- Institute of Immunology, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Peter Steinberger
- Institute of Immunology, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
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7
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Seidel MG, Hirschmugl T, Gamez-Diaz L, Schwinger W, Serwas N, Deutschmann A, Gorkiewicz G, Zenz W, Windpassinger C, Grimbacher B, Urban C, Boztug K. Long-term remission after allogeneic hematopoietic stem cell transplantation in LPS-responsive beige-like anchor (LRBA) deficiency. J Allergy Clin Immunol 2014; 135:1384-90.e1-8. [PMID: 25539626 PMCID: PMC4429722 DOI: 10.1016/j.jaci.2014.10.048] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2014] [Revised: 10/24/2014] [Accepted: 10/29/2014] [Indexed: 12/12/2022]
Affiliation(s)
- Markus G Seidel
- Department of Pediatrics and Adolescent Medicine, Division of Pediatric Hematology-Oncology, Medical University Graz, Graz, Austria.
| | - Tatjana Hirschmugl
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria
| | - Laura Gamez-Diaz
- Center for Chronic Immunodeficiency, University Medical Center, Freiburg, Germany
| | - Wolfgang Schwinger
- Department of Pediatrics and Adolescent Medicine, Division of Pediatric Hematology-Oncology, Medical University Graz, Graz, Austria
| | - Nina Serwas
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria
| | - Andrea Deutschmann
- Department of Pediatrics and Adolescent Medicine, Division of General Pediatrics, Medical University Graz, Graz, Austria
| | | | - Werner Zenz
- Department of Pediatrics and Adolescent Medicine, Division of General Pediatrics, Medical University Graz, Graz, Austria
| | | | - Bodo Grimbacher
- Center for Chronic Immunodeficiency, University Medical Center, Freiburg, Germany
| | - Christian Urban
- Department of Pediatrics and Adolescent Medicine, Division of Pediatric Hematology-Oncology, Medical University Graz, Graz, Austria
| | - Kaan Boztug
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria; Department of Pediatrics and Adolescent Medicine, Medical University Vienna, Vienna, Austria.
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8
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Willmann KL, Klaver S, Doğu F, Santos-Valente E, Garncarz W, Bilic I, Mace E, Salzer E, Domínguez Conde C, Sic H, Májek P, Banerjee PP, Vladimer GI, Haskoloğlu Ş, Gökalp Bolkent M, Küpesiz A, Condino-Neto A, Colinge J, Superti-Furga G, Pickl WF, van Zelm MC, Eibel H, Orange JS, Ikincioğulları A, Boztuğ K. Biallelic loss-of-function mutation in NIK causes a primary immunodeficiency with multifaceted aberrant lymphoid immunity. Nat Commun 2014; 5:5360. [PMID: 25406581 PMCID: PMC4263125 DOI: 10.1038/ncomms6360] [Citation(s) in RCA: 93] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2014] [Accepted: 09/23/2014] [Indexed: 12/18/2022] Open
Abstract
Primary immunodeficiency disorders enable identification of genes with crucial roles in the human immune system. Here we study patients suffering from recurrent bacterial, viral and Cryptosporidium infections, and identify a biallelic mutation in the MAP3K14 gene encoding NIK (NF-κB-inducing kinase). Loss of kinase activity of mutant NIK, predicted by in silico analysis and confirmed by functional assays, leads to defective activation of both canonical and non-canonical NF-κB signalling. Patients with mutated NIK exhibit B-cell lymphopenia, decreased frequencies of class-switched memory B cells and hypogammaglobulinemia due to impaired B-cell survival, and impaired ICOSL expression. Although overall T-cell numbers are normal, both follicular helper and memory T cells are perturbed. Natural killer (NK) cells are decreased and exhibit defective activation, leading to impaired formation of NK-cell immunological synapses. Collectively, our data illustrate the non-redundant role for NIK in human immune responses, demonstrating that loss-of-function mutations in NIK can cause multiple aberrations of lymphoid immunity.
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Affiliation(s)
- Katharina L. Willmann
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna 1090, Austria
| | - Stefanie Klaver
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna 1090, Austria
- Department of Immunology, Institute of Biomedical Sciences, University of São Paulo, São Paulo 05508-900, Brazil
| | - Figen Doğu
- Department of Pediatric Immunology and Allergy, Ankara University Medical School, Ankara 06100, Turkey
| | - Elisangela Santos-Valente
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna 1090, Austria
| | - Wojciech Garncarz
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna 1090, Austria
| | - Ivan Bilic
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna 1090, Austria
| | - Emily Mace
- Center for Human Immunobiology, Baylor College of Medicine and Texas Children’s Hospital, Houston, Texas 77030, USA
| | - Elisabeth Salzer
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna 1090, Austria
| | - Cecilia Domínguez Conde
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna 1090, Austria
| | - Heiko Sic
- Centre of Chronic Immunodeficiency, University Medical Centre Freiburg, Freiburg 79180, Germany
| | - Peter Májek
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna 1090, Austria
| | - Pinaki P. Banerjee
- Center for Human Immunobiology, Baylor College of Medicine and Texas Children’s Hospital, Houston, Texas 77030, USA
| | - Gregory I. Vladimer
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna 1090, Austria
| | - Şule Haskoloğlu
- Department of Pediatric Immunology and Allergy, Ankara University Medical School, Ankara 06100, Turkey
| | - Musa Gökalp Bolkent
- Department of Pediatric Immunology and Allergy, Ankara University Medical School, Ankara 06100, Turkey
| | - Alphan Küpesiz
- Department of Pediatric Hematology, Akdeniz University Medical School, Antalya 07985, Turkey
| | - Antonio Condino-Neto
- Department of Immunology, Institute of Biomedical Sciences, University of São Paulo, São Paulo 05508-900, Brazil
| | - Jacques Colinge
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna 1090, Austria
| | - Giulio Superti-Furga
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna 1090, Austria
| | - Winfried F. Pickl
- Christian Doppler Laboratory for Immunomodulation and Institute of Immunology, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna 1090, Austria
| | - Menno C. van Zelm
- Department of Immunology, Erasmus MC, University Medical Center, Rotterdam 3015GE, The Netherlands
| | - Hermann Eibel
- Centre of Chronic Immunodeficiency, University Medical Centre Freiburg, Freiburg 79180, Germany
| | - Jordan S. Orange
- Center for Human Immunobiology, Baylor College of Medicine and Texas Children’s Hospital, Houston, Texas 77030, USA
| | - Aydan Ikincioğulları
- Department of Pediatric Immunology and Allergy, Ankara University Medical School, Ankara 06100, Turkey
| | - Kaan Boztuğ
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna 1090, Austria
- Department of Paediatrics and Adolescent Medicine, Medical University of Vienna, Vienna 1090, Austria
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Major histocompatibility complex class II expression deficiency caused by a RFXANK founder mutation: a survey of 35 patients. Blood 2011; 118:5108-18. [DOI: 10.1182/blood-2011-05-352716] [Citation(s) in RCA: 85] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
AbstractInherited deficiency of major histocompatibility complex (MHC) class II molecules impairs antigen presentation to CD4+ T cells and results in combined immunodeficiency (CID). Autosomal-recessive mutations in the RFXANK gene account for two-thirds of all cases of MHC class II deficiency. We describe here the genetic, clinical, and immunologic features of 35 patients from 30 unrelated kindreds from North Africa sharing the same RFXANK founder mutation, a 26-bp deletion called I5E6-25_I5E6 + 1), and date the founder event responsible for this mutation in this population to approximately 2250 years ago (95% confidence interval [CI]: 1750-3025 years). Ten of the 23 patients who underwent hematopoietic stem cell transplantation (HSCT) were cured, with the recovery of almost normal immune functions. Five of the patients from this cohort who did not undergo HSCT had a poor prognosis and eventually died (at ages of 1-17 years). However, 7 patients who did not undergo HSCT (at ages of 6-32 years) are still alive on Ig treatment and antibiotic prophylaxis. RFXANK deficiency is a severe, often fatal CID for which HSCT is the only curative treatment. However, some patients may survive for relatively long periods if multiple prophylactic measures are implemented.
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Shrestha D, Szöllosi J, Jenei A. Bare lymphocyte syndrome: an opportunity to discover our immune system. Immunol Lett 2011; 141:147-57. [PMID: 22027563 DOI: 10.1016/j.imlet.2011.10.007] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2011] [Revised: 09/30/2011] [Accepted: 10/11/2011] [Indexed: 11/27/2022]
Abstract
Bare lymphocyte syndrome (BLS) is a rare immunodeficiency disorder manifested by the partial or complete disappearance of major histocompatibility complex (MHC) proteins from the surface of the cells. Based on this specific feature, it is categorized into three different types depending on which type of MHC protein is affected. These proteins are mainly involved in generating the effective immune responses by differentiating 'self' from 'non-self' antigens through a process referred to as antigen presentation. Investigations on BLS have immensely contributed to our understanding of the transcriptional regulation of these molecules and have led to the discovery of several important proteins of the antigen presentation pathway. Reviews on this subject consistently project type II BLS, MHC II deficiency as BLS syndrome, although literatures' document cases of other types of BLS too. Therefore, in this article, we have assembled information on the BLS syndrome to produce a systematic narration while emphasizing the importance of BLS system in studying various aspects of immune biology.
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Affiliation(s)
- Dilip Shrestha
- Department of Biophysics and Cell Biology, Medical and Health Science Center, University of Debrecen, Nagyerdei krt 98, Debrecen 4032, Hungary
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