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Ameratunga R, Woon ST, Leung E, Lea E, Chan L, Mehrtens J, Longhurst HJ, Steele R, Lehnert K, Lindsay K. The autoimmune rheumatological presentation of Common Variable Immunodeficiency Disorders with an overview of genetic testing. Semin Arthritis Rheum 2024; 65:152387. [PMID: 38330740 DOI: 10.1016/j.semarthrit.2024.152387] [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: 11/06/2023] [Revised: 01/06/2024] [Accepted: 01/16/2024] [Indexed: 02/10/2024]
Abstract
Primary immunodeficiency Disorders (PIDS) are rare, mostly monogenetic conditions which can present to a number of specialties. Although infections predominate in most PIDs, some individuals can manifest autoimmune or inflammatory sequelae as their initial clinical presentation. Identifying patients with PIDs can be challenging, as some can present later in life. This is often seen in patients with Common Variable Immunodeficiency Disorders (CVID), where symptoms can begin in the sixth or even seventh decades of life. Some patients with PIDs including CVID can initially present to rheumatologists with autoimmune musculoskeletal manifestations. It is imperative for these patients to be identified promptly as immunosuppression could lead to life-threatening opportunistic infections in these immunocompromised individuals. These risks could be mitigated by prior treatment with subcutaneous or intravenous (SCIG/IVIG) immunoglobulin replacement or prophylactic antibiotics. Importantly, many of these disorders have an underlying genetic defect. Individualized treatments may be available for the specific mutation, which may obviate or mitigate the need for hazardous broad-spectrum immunosuppression. Identification of the genetic defect has profound implications not only for the patient but also for affected family members, who may be at risk of symptomatic disease following an environmental trigger such as a viral infection. Finally, there may be clinical clues to the underlying PID, such as recurrent infections, the early presentation of severe or multiple autoimmune disorders, as well as a relevant family history. Early referral to a clinical immunologist will facilitate appropriate diagnostic evaluation and institution of treatment such as SCIG/IVIG immunoglobulin replacement. This review comprises three sections; an overview of PIDs, focusing on CVID, secondly genetic testing of PIDs and finally the clinical presentation of these disorders to rheumatologists.
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Affiliation(s)
- Rohan Ameratunga
- Department of Clinical immunology, Auckland Hospital, Park Rd, Grafton 1010, Auckland, New Zealand; Department of Virology and Immunology, Auckland Hospital, Park Rd, Grafton 1010, Auckland, New Zealand; Department of Molecular Medicine and Pathology, School of Medicine, Faculty of Medical and Health Sciences, University of Auckland, New Zealand.
| | - See-Tarn Woon
- Department of Virology and Immunology, Auckland Hospital, Park Rd, Grafton 1010, Auckland, New Zealand; Department of Molecular Medicine and Pathology, School of Medicine, Faculty of Medical and Health Sciences, University of Auckland, New Zealand
| | - Euphemia Leung
- Maurice Wilkins Centre, School of Biological Sciences, University of Auckland, Symonds St, Auckland, New Zealand; Auckland Cancer Society Research Centre, School of Medicine, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
| | - Edward Lea
- Department of Clinical immunology, Auckland Hospital, Park Rd, Grafton 1010, Auckland, New Zealand
| | - Lydia Chan
- Department of Clinical immunology, Auckland Hospital, Park Rd, Grafton 1010, Auckland, New Zealand
| | - James Mehrtens
- Department of Clinical immunology, Auckland Hospital, Park Rd, Grafton 1010, Auckland, New Zealand
| | - Hilary J Longhurst
- Department of Clinical immunology, Auckland Hospital, Park Rd, Grafton 1010, Auckland, New Zealand; Department of Virology and Immunology, Auckland Hospital, Park Rd, Grafton 1010, Auckland, New Zealand; Department of Medicine, School of Medicine, Faculty of Medical and Health Sciences, University of Auckland, New Zealand
| | - Richard Steele
- Department of Clinical immunology, Auckland Hospital, Park Rd, Grafton 1010, Auckland, New Zealand; Department of Respiratory Medicine, Wellington Hospital, Wellington, New Zealand
| | - Klaus Lehnert
- Maurice Wilkins Centre, School of Biological Sciences, University of Auckland, Symonds St, Auckland, New Zealand; Applied Translational Genetics, School of Biological Sciences, University of Auckland, Auckland, New Zealand
| | - Karen Lindsay
- Department of Clinical immunology, Auckland Hospital, Park Rd, Grafton 1010, Auckland, New Zealand
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Mehta P, Tsilifis C, Lum SH, Slatter MA, Hambleton S, Owens S, Williams E, Flood T, Gennery AR, Nademi Z. Outcome of Second Allogeneic HSCT for Patients with Inborn Errors of Immunity: Retrospective Study of 20 Years' Experience. J Clin Immunol 2023; 43:1812-1826. [PMID: 37452206 DOI: 10.1007/s10875-023-01549-w] [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: 03/28/2023] [Accepted: 07/06/2023] [Indexed: 07/18/2023]
Abstract
A significant complication of HSCT is graft failure, although few studies focus on this problem in patients with inborn errors of immunity (IE). We explored outcome of second HSCT for IEI by a retrospective, single-centre study between 2002 and 2022. Four hundred ninety-three patients underwent allogeneic HSCT for severe combined immunodeficiency (SCID; n = 113, 22.9%) or non-SCID IEI (n = 380, 77.1%). Thirty patients (6.0%) required second HSCT. Unconditioned infusion or no serotherapy at first HSCT was more common in patients who required second transplant. Median interval between first and second HSCT was 0.97 years (range: 0.19-8.60 years); a different donor was selected for second HSCT in 24/30 (80.0%) patients. Conditioning regimens for second HSCT were predominately treosulfan-based (with thiotepa: n = 18, 60.0%; without, n = 6, 20.0%). Patients received grafts from peripheral blood stem cell (n = 25, 83.3%) or bone marrow (n = 5, 16.7%) with median stem cell dose 9.5 × 106 CD34 + cells/kilogram (range: 1.4-32.3). Median follow-up was 1.92 years (0.22-16.0). Overall survival was 80.8% and event-free survival was 64.7%. Four patients died, two of early-transplant related complications, and two of late sepsis post-second HSCT. Three patients required third HSCT; all are alive with 100% donor chimerism. Cumulative incidence of acute graft-versus-host disease was 28.4%, (all grade I-II). Viral reactivation was seen in 13/30 (43.3%) patients, including HHV6 (n = 6), CMV (n = 4), and adenovirus (n = 2). At latest follow-up, 25/26 surviving patients have donor chimerism ≥ 90% and 16/25 (64.0%) have discontinued immunoglobulin replacement. Second HSCT offers IEI patients with graft failure curative treatment with good overall survival and immunological recovery.
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Affiliation(s)
- Priti Mehta
- Children's Haematopoietic Stem Cell Transplant Unit, Great North Children's Hospital, Royal Victoria Infirmary, Newcastle Upon Tyne, NE1 4LP, UK
| | - Christo Tsilifis
- Children's Haematopoietic Stem Cell Transplant Unit, Great North Children's Hospital, Royal Victoria Infirmary, Newcastle Upon Tyne, NE1 4LP, UK.
- Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle Upon Tyne, NE2 4HH, UK.
| | - Su Han Lum
- Children's Haematopoietic Stem Cell Transplant Unit, Great North Children's Hospital, Royal Victoria Infirmary, Newcastle Upon Tyne, NE1 4LP, UK
- Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle Upon Tyne, NE2 4HH, UK
| | - Mary A Slatter
- Children's Haematopoietic Stem Cell Transplant Unit, Great North Children's Hospital, Royal Victoria Infirmary, Newcastle Upon Tyne, NE1 4LP, UK
- Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle Upon Tyne, NE2 4HH, UK
| | - Sophie Hambleton
- Children's Haematopoietic Stem Cell Transplant Unit, Great North Children's Hospital, Royal Victoria Infirmary, Newcastle Upon Tyne, NE1 4LP, UK
- Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle Upon Tyne, NE2 4HH, UK
| | - Stephen Owens
- Children's Haematopoietic Stem Cell Transplant Unit, Great North Children's Hospital, Royal Victoria Infirmary, Newcastle Upon Tyne, NE1 4LP, UK
| | - Eleri Williams
- Children's Haematopoietic Stem Cell Transplant Unit, Great North Children's Hospital, Royal Victoria Infirmary, Newcastle Upon Tyne, NE1 4LP, UK
| | - Terry Flood
- Children's Haematopoietic Stem Cell Transplant Unit, Great North Children's Hospital, Royal Victoria Infirmary, Newcastle Upon Tyne, NE1 4LP, UK
| | - Andrew R Gennery
- Children's Haematopoietic Stem Cell Transplant Unit, Great North Children's Hospital, Royal Victoria Infirmary, Newcastle Upon Tyne, NE1 4LP, UK
- Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle Upon Tyne, NE2 4HH, UK
| | - Zohreh Nademi
- Children's Haematopoietic Stem Cell Transplant Unit, Great North Children's Hospital, Royal Victoria Infirmary, Newcastle Upon Tyne, NE1 4LP, UK
- Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle Upon Tyne, NE2 4HH, UK
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Dorsey MJ, Condino-Neto A. Improving Access to Therapy for Patients With Inborn Errors of Immunity: A Call to Action. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY. IN PRACTICE 2023; 11:1698-1702. [PMID: 37119982 DOI: 10.1016/j.jaip.2023.04.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2023] [Revised: 04/20/2023] [Accepted: 04/21/2023] [Indexed: 05/01/2023]
Abstract
Breakthroughs in sequencing technology, targeted immunotherapy, and immune reconstituting treatment have increased the pool of patients with inborn errors of immunity, requiring expertise from clinical immunologists. A growing category of immunodeficiency, presenting as primary immune regulatory disorder and secondary immunodeficiency due to targeted immune therapy for cancer and autoimmunity, has added to the growing burden of patients needing access to immune-supportive therapy. The confluence of a growing population of patients needing a clinical immunologist, complex payer structures, and inadequate health care representation will exacerbate current problems with access to therapy. Patients, health care providers, researchers, public and private payers, and industry must come together to find solutions to improve access to therapy. In this article, we reviewed the major topics regarding access to therapy for patients with immunodeficiency.
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Affiliation(s)
- Morna J Dorsey
- Division of Pediatric Allergy, Immunology & Bone Marrow Transplantation, UCSF Benioff Children's Hospital, University of California, San Francisco, Calif
| | - Antonio Condino-Neto
- Department of Immunology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, SP, Brazil.
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Mongellaz C, Vicente R, Noroski LM, Noraz N, Courgnaud V, Chinen J, Faria E, Zimmermann VS, Taylor N. Combined immunodeficiency caused by pathogenic variants in the ZAP70 C-terminal SH2 domain. Front Immunol 2023; 14:1155883. [PMID: 37313400 PMCID: PMC10258307 DOI: 10.3389/fimmu.2023.1155883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Accepted: 05/17/2023] [Indexed: 06/15/2023] Open
Abstract
Introduction ZAP-70, a protein tyrosine kinase recruited to the T cell receptor (TCR), initiates a TCR signaling cascade upon antigen stimulation. Mutations in the ZAP70 gene cause a combined immunodeficiency characterized by low or absent CD8+ T cells and nonfunctional CD4+ T cells. Most deleterious missense ZAP70 mutations in patients are located in the kinase domain but the impact of mutations in the SH2 domains, regulating ZAP-70 recruitment to the TCR, are not well understood. Methods Genetic analyses were performed on four patients with CD8 lymphopenia and a high resolution melting screening for ZAP70 mutations was developed. The impact of SH2 domain mutations was evaluated by biochemical and functional analyses as well as by protein modeling. Results and discussion Genetic characterization of an infant who presented with pneumocystis pneumonia, mycobacterial infection, and an absence of CD8 T cells revealed a novel homozygous mutation in the C-terminal SH2 domain (SH2-C) of the ZAP70 gene (c.C343T, p.R170C). A distantly related second patient was found to be compound heterozygous for the R170C variant and a 13bp deletion in the ZAP70 kinase domain. While the R170C mutant was highly expressed, there was an absence of TCR-induced proliferation, associated with significantly attenuated TCR-induced ZAP-70 phosphorylation and a lack of binding of ZAP-70 to TCR-ζ. Moreover, a homozygous ZAP-70 R192W variant was identified in 2 siblings with combined immunodeficiency and CD8 lymphopenia, confirming the pathogenicity of this mutation. Structural modeling of this region revealed the critical nature of the arginines at positions 170 and 192, in concert with R190, forming a binding pocket for the phosphorylated TCR-ζ chain. Deleterious mutations in the SH2-C domain result in attenuated ZAP-70 function and clinical manifestations of immunodeficiency.
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Affiliation(s)
- Cédric Mongellaz
- Institut de Génétique Moléculaire de Montpellier, University of Montpellier, Centre National de la Recherche Scientifique (CNRS), Montpellier, France
| | - Rita Vicente
- Institut de Génétique Moléculaire de Montpellier, University of Montpellier, Centre National de la Recherche Scientifique (CNRS), Montpellier, France
| | - Lenora M. Noroski
- Immunology, Allergy and Rheumatology Section, Department of Pediatrics, Texas Children’s Hospital, Baylor College of Medicine, Houston, TX, United States
| | - Nelly Noraz
- Institut de Génétique Moléculaire de Montpellier, University of Montpellier, Centre National de la Recherche Scientifique (CNRS), Montpellier, France
| | - Valérie Courgnaud
- Institut de Génétique Moléculaire de Montpellier, University of Montpellier, Centre National de la Recherche Scientifique (CNRS), Montpellier, France
| | - Javier Chinen
- Immunology, Allergy and Rheumatology Section, Department of Pediatrics, Texas Children’s Hospital, Baylor College of Medicine, Houston, TX, United States
| | - Emilia Faria
- Immunoallergy Department, Coimbra Hospital and University Centre (CHUC), Coimbra, Portugal
| | - Valérie S. Zimmermann
- Institut de Génétique Moléculaire de Montpellier, University of Montpellier, Centre National de la Recherche Scientifique (CNRS), Montpellier, France
| | - Naomi Taylor
- Institut de Génétique Moléculaire de Montpellier, University of Montpellier, Centre National de la Recherche Scientifique (CNRS), Montpellier, France
- Pediatric Oncology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health (NIH), Bethesda, MD, United States
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Slatter M, Lum SH. Personalized hematopoietic stem cell transplantation for inborn errors of immunity. Front Immunol 2023; 14:1162605. [PMID: 37090739 PMCID: PMC10113466 DOI: 10.3389/fimmu.2023.1162605] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Accepted: 03/20/2023] [Indexed: 04/08/2023] Open
Abstract
Patients with inborn errors of immunity (IEI) have been transplanted for more than 50 years. Many long-term survivors have ongoing medical issues showing the need for further improvements in how hematopoietic stem cell transplantation (HSCT) is performed if patients in the future are to have a normal quality of life. Precise genetic diagnosis enables early treatment before recurrent infection, autoimmunity and organ impairment occur. Newborn screening for severe combined immunodeficiency (SCID) is established in many countries. For newly described disorders the decision to transplant is not straight-forward. Specific biologic therapies are effective for some diseases and can be used as a bridge to HSCT to improve outcome. Developments in reduced toxicity conditioning and methods of T-cell depletion for mismatched donors have made transplant an option for all eligible patients. Further refinements in conditioning plus precise graft composition and additional cellular therapy are emerging as techniques to personalize the approach to HSCT for each patient.
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Affiliation(s)
- Mary Slatter
- Paediatric Immunology and HSCT, Newcastle University, Newcastle upon Tyne, United Kingdom
- Translational and Clinical Research Institute, Great North Children’s Hospital, Newcastle upon Tyne, United Kingdom
| | - Su Han Lum
- Paediatric Immunology and HSCT, Newcastle University, Newcastle upon Tyne, United Kingdom
- Translational and Clinical Research Institute, Great North Children’s Hospital, Newcastle upon Tyne, United Kingdom
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