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Mohammadi F, Yadegar A, Mardani M, Ayati A, Abolhassani H, Rezaei N. Organ-based clues for diagnosis of inborn errors of immunity: A practical guide for clinicians. Immun Inflamm Dis 2023; 11:e833. [PMID: 37102642 PMCID: PMC10091206 DOI: 10.1002/iid3.833] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Accepted: 03/24/2023] [Indexed: 04/28/2023] Open
Abstract
Inborn errors of immunity (IEI) comprise a group of about 490 genetic disorders that lead to aberrant functioning or the development of distinct immune system components. So far, a broad spectrum of IEI-related manifestations has been noted in the literature. Due to overlapping signs and symptoms of IEI, physicians face challenges in appropriately diagnosing and managing affected individuals. The last decade has witnesses improving in the molecular diagnosis of IEI patients. As a result, it can be the mainstay of diagnostic algorithms, prognosis, and possibly therapeutic interventions in patients with IEI. Furthermore, reviewing IEI clinical complications demonstrates that the manifestations and severity of the symptoms depend on the involved gene that causes the disease and its penetrance. Although several diagnostic criteria have been used for IEI, not every patient can be explored in the same way. As a result of the failure to consider IEI diagnosis and the variety of diagnostic capabilities and laboratory facilities in different regions, undiagnosed patients are increasing. On the other hand, early diagnosis is an almost essential element in improving the quality of life in IEI patients. Since there is no appropriate guideline for IEI diagnosis in different organs, focusing on the clues in the patient's chief complaint and physical exams can help physicians narrow their differential diagnosis. This article aims to provide a practical guide for IEI diagnosis based on the involved organ. We hope to assist clinicians in keeping IEI diagnosis in mind and minimizing possible related complications due to delayed diagnosis.
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Affiliation(s)
- Fatemeh Mohammadi
- School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
- Universal Scientific Education and Research Network (USERN), Network of Immunity in Infection, Malignancy and Autoimmunity (NIIMA), Tehran, Iran
| | - Amirhossein Yadegar
- School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
- Universal Scientific Education and Research Network (USERN), Network of Immunity in Infection, Malignancy and Autoimmunity (NIIMA), Tehran, Iran
| | - Mahta Mardani
- School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
- Universal Scientific Education and Research Network (USERN), Network of Immunity in Infection, Malignancy and Autoimmunity (NIIMA), Tehran, Iran
| | - Aryan Ayati
- Research Center for Advanced Technologies in Cardiovascular Medicine, Tehran Heart Center, Tehran University of Medical Science, Tehran, Iran
| | - Hassan Abolhassani
- Research Center for Immunodeficiencies, Pediatrics Center of Excellence, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Nima Rezaei
- Universal Scientific Education and Research Network (USERN), Network of Immunity in Infection, Malignancy and Autoimmunity (NIIMA), Tehran, Iran
- Research Center for Immunodeficiencies, Pediatrics Center of Excellence, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
- Primary Immunodeficiency Diseases Network (PIDNet), Tehran, Iran
- Children's Medical Center, Tehran, Iran
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Mertowska P, Mertowski S, Podgajna M, Grywalska E. The Importance of the Transcription Factor Foxp3 in the Development of Primary Immunodeficiencies. J Clin Med 2022; 11:947. [PMID: 35207219 PMCID: PMC8874698 DOI: 10.3390/jcm11040947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 01/29/2022] [Accepted: 02/09/2022] [Indexed: 02/05/2023] Open
Abstract
Transcription factors are an extremely important group of proteins that are responsible for the process of selective activation or deactivation of other cellular proteins, usually at the last stage of signal transmission in the cell. An important family of transcription factors that regulate the body's response is the FOX family which plays an important role in regulating the expression of genes involved in cell growth, proliferation, and differentiation. The members of this family include the intracellular protein Foxp3, which regulates the process of differentiation of the T lymphocyte subpopulation, and more precisely, is responsible for the development of regulatory T lymphocytes. This protein influences several cellular processes both directly and indirectly. In the process of cytokine production regulation, the Foxp3 protein interacts with numerous proteins and transcription factors such as NFAT, nuclear factor kappa B, and Runx1/AML1 and is involved in the process of histone acetylation in condensed chromatin. Malfunctioning of transcription factor Foxp3 caused by the mutagenesis process affects the development of disorders of the immune response and autoimmune diseases. This applies to the impairment or inability of the immune system to fight infections due to a disruption of the mechanisms supporting immune homeostasis which in turn leads to the development of a special group of disorders called primary immunodeficiencies (PID). The aim of this review is to provide information on the role of the Foxp3 protein in the human body and its involvement in the development of two types of primary immunodeficiency diseases: IPEX (Immunodysregulation Polyendocrinopathy Enteropathy X-linked syndrome) and CVID (Common Variable Immunodeficiency).
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Affiliation(s)
| | - Sebastian Mertowski
- Department of Experimental Immunology, Medical University of Lublin, Chodźki 4a St., 20-093 Lublin, Poland; (P.M.); (M.P.); (E.G.)
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Takada H. Creating Awareness for Primary Immunodeficiencies in Japan. Front Immunol 2021; 12:803459. [PMID: 34966393 PMCID: PMC8710485 DOI: 10.3389/fimmu.2021.803459] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Accepted: 11/29/2021] [Indexed: 11/13/2022] Open
Abstract
Primary immunodeficiency (PID) is primarily characterized by susceptibility to infectious diseases. In addition, patients with some type of PID are prone to develop autoimmune, autoinflammatory, or malignant diseases. Therefore, the term, inborn errors of immunity (IEI), has been more used rather than PID. In recent years, the number of diseases which belong to PID has been increasing. There were approximately 110 diseases in the report of International Union of Immunological Societies in 1999. Since then, the number increased to 430 diseases in the latest IUIS report in 2019. We conducted PID nationwide survey in Japan for 3 times in the last 15 years. These studies were focused on incidence and complications of PID, the clinical course of viral infection, and methods to prevent infectious diseases in PID patients. For the awareness of PID, it is essential to know the general and fundamental information of PID patients. Needless to say, we need it to offer appropriate medical services for PID patients. Moreover, chances to provide answers to the questionnaires and seeing the results of the analysis should contribute to the awareness of PID among doctors. In this review, I am going to summarize the results of 3 nationwide survey in Japan, and pick up interleukin-1 receptor-associated kinase 4 (IRAK4) deficiency as an example for creating awareness for its appropriate management.
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Affiliation(s)
- Hidetoshi Takada
- Department of Child Health, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
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Sullivan KE, Puck JM, Notarangelo LD, Fuleihan R, Caulder T, Wang C, Boyle M, Cunningham-Rundles C. USIDNET: a strategy to build a community of clinical immunologists. J Clin Immunol 2014; 34:428-35. [PMID: 24711005 DOI: 10.1007/s10875-014-0028-1] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2014] [Accepted: 03/20/2014] [Indexed: 11/25/2022]
Abstract
OBJECTIVES Information about patients with primary immune deficiencies can be scarce because of the rarity of the disorders. Individual centers rarely have sufficient patients to educate trainees and garner collective wisdom. Registries for many diseases have proven their worth by providing essential information on disease spectrum, treatments and natural history. This study describes the construction and use of a registry for patients with primary immune deficiencies and other efforts to improve knowledge and care for affected patients and their families. METHODS Registry demographics and data were extracted using proprietary reporting tools. Educational efforts and cell repository data were collected from centralized source material. RESULTS The USIDNET Registry contains 3,459 patients, with common variable immune deficiency being the most represented. Pilot studies identified strengths and weaknesses of the data. Visiting Professor and Visiting Scholar Programs have been successful, encouraging trainees at all levels to pursue a career in Immunology. CONCLUSIONS USIDNET's comprehensive and integrated approach provides resources that strengthen the field of primary immune deficiencies, as shown by utilization by 312 distinct sites or individuals. The reach of USIDNET's efforts is extended through the educational resources.
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Affiliation(s)
- Kathleen E Sullivan
- Department of Pediatrics, The Children's Hospital of Philadelphia, 3615 Civic Center Blvd, Philadelphia, PA, 19104, USA,
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Takada H. Primary immunodeficiency in Japan; epidemiology, diagnosis, and pathogenesis. Pediatr Int 2013; 55:671-4. [PMID: 24112462 DOI: 10.1111/ped.12224] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/13/2013] [Revised: 08/30/2013] [Accepted: 09/10/2013] [Indexed: 11/29/2022]
Abstract
Primary immunodeficiency (PID) constitutes a large group of diseases, including almost 180 hereditary disorders. The patients show susceptibility to various infections due to congenital defects of the immune system. It is also known that PID patients suffer from non-infectious complications, including autoimmune diseases and malignant disorders. During the last 20 years the number of known PID has increased considerably. New PID conferring a specific predisposition to infections with one or a few pathogens have been described. Disorders of innate immunity and various autoinflammatory disorders were included in new categories. In contrast, the incidence, clinical manifestations, and genetic factors of PID seem to be different among countries or races. The clinical manifestations can differ depending on the hygiene conditions, health-care environment, and vaccination policy, and so on. A nationwide survey on PID patients in Japan provided a lot of information regarding these issues, and it uncovered a previously unknown complication of PID, endocrine disorders. In this review, the data concerning epidemiology and clinical characteristics of PID in Japan obtained in the nationwide questionnaire survey, and the results of studies on the clinical and genetic characteristics of Japanese patients with Mendelian susceptibility to mycobacterial disease and interleukin-1 receptor-associated kinase 4 deficiency are presented in the light of their pathogenesis and pathophysiology.
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Affiliation(s)
- Hidetoshi Takada
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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