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Ahmad Azahari AHS, Hakim Zada F, Ismail IH, Abd Hamid IJ, Lim BWD, Ismail NAS, Ali A. Knowledge, awareness, and perception on genetic testing for primary immunodeficiency disease among parents in Malaysia: a qualitative study. Front Immunol 2024; 14:1308305. [PMID: 38283358 PMCID: PMC10811462 DOI: 10.3389/fimmu.2023.1308305] [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: 10/06/2023] [Accepted: 12/07/2023] [Indexed: 01/30/2024] Open
Abstract
Background Primary Immunodeficiency Disease (PID), also known as Inborn Errors of Immunity (IEI), comprises a group of rare genetic disorders that impair the body's immune responses. These conditions result from monogenic germline mutations that affect the function of genes governing the innate and adaptive immune system. Therefore, individuals with PID are more susceptible to infectious diseases, allergies, and autoimmune and autoinflammatory conditions. The prevalence of PID has been on the rise, with the number of classified diseases reaching 404, and 430 genetic defects reported to cause these conditions. However, in Malaysia, genetic testing for PID is currently limited and needs to be outsourced to overseas laboratories, posing financial challenges for families. Moreover, limited research has focused on the knowledge and awareness of genetic testing among parents of children with PID in Malaysia. This study aims to address this gap and provide valuable insights into the knowledge, awareness, and perception of genetic testing among this specific population. Method This qualitative cross-sectional study utilised online open-ended, semi-structured focus group interviews to explore the perceptions and experiences of parents of children with Primary Immunodeficiency (PID). Participants were recruited through convenience sampling from the Malaysian Patient Organisation for Primary Immunodeficiencies (MyPOPI), a non-governmental organisation dedicated to providing support and raising awareness about PID. The study spanned from May 2023 to July 2023 and included participants from diverse regions of Malaysia who had undergone different diagnostic journeys in various hospitals. Result The focus group discussions yielded 11 sub-themes that highlighted the experiences, understanding and challenges of the participants regarding genetic testing based on the semi-structured questions. These sub-themes were then grouped into four main themes that are awareness and understanding of genetic testing, the journey towards diagnosis and treatment, emotional impact and psychological factors, and the importance of medical experts in diagnosing and managing PID, as well as public perception and awareness. Conclusion In conclusion, this study highlights the diverse knowledge, awareness, and perception surrounding genetic testing for PID. Factors such as access to services, family history, and personal circumstances shape individuals' understanding of genetic testing. The importance of healthcare professionals, along with the need for improved accessibility and targeted communication strategies, is underscored to enhance understanding and reduce stigma surrounding genetic testing for rare diseases like PID.
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Affiliation(s)
| | - Farheen Hakim Zada
- Department of Paediatrics, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Intan Hakimah Ismail
- Clinical Immunology Unit, Department of Paediatrics, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, Malaysia
| | - Intan Juliana Abd Hamid
- Primary Immunodeficiency Diseases Group, Department of Clinical Medicine, Institut Perubatan dan Pergigian Termaju, Universiti Sains Malaysia, Bertam, Pulau Pinang, Malaysia
| | - Bruce Wee Diong Lim
- Malaysian Patient Organisation for Primary Immunodeficiencies (MyPOPI), Kuala Lumpur, Malaysia
| | - Noor Akmal Shareela Ismail
- Hospital Tunku Ampuan Besar Tuanku Aishah Rohani, UKM Specialist Children’s Hospital, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
- Department of Biochemistry, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Adli Ali
- Department of Paediatrics, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
- Hospital Tunku Ampuan Besar Tuanku Aishah Rohani, UKM Specialist Children’s Hospital, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
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Melo KMD, Alves LM, Valente CFC, Tavares FS. One-year intravenous immunoglobulin replacement therapy: efficacy in reducing hospital admissions in pediatric patients with Inborn Errors of Immunity. J Pediatr (Rio J) 2022; 98:190-195. [PMID: 34273274 PMCID: PMC9432171 DOI: 10.1016/j.jped.2021.05.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 05/13/2021] [Accepted: 05/14/2021] [Indexed: 01/29/2023] Open
Abstract
OBJECTIVES To compare the frequency of hospitalization in children with Inborn Errors of Immunity with antibody deficiency previous to intravenous immunoglobulin (pre- IVIG) with a one-year period after initial IVIG (post-IVIG). METHODS Medical reports of 45 patients during an eight-year period were reviewed from 2018 to 2019. Wilcoxon-test was used for related samples. RESULTS Forty-five children were included in the study, aged 29-249 months of age, and most of them (64.4%) were males. Median ages at onset symptoms and at diagnosis were 6 and 73 months old, respectively. Specific antibody deficiency and unclassified hypogammaglobulinemia were the predominant diagnoses (31.1% and 17.8%, respectively). X-linked agammaglobulinemia, Hyper IgE syndrome, Hyper IgM, transient hypogammaglobulinemia of infancy, and Common Variable Immunodeficiency (CVID) were also reported, in a low frequency. Forty-four (97.8%) patients were hospitalized before IVIG, and 10 patients (22.2%) after. Annual mean hospital admission reduced from 2.5 to 0.5, pre and post-IVIG, respectively (p < 0.0001). Mean length of stay (LOS) reduced from 71 to 4.7 days/year (p < 0.0001) in general ward and in the PICU from 17.2 days/year to zero (p < 0.0002). Pneumonia was the main cause of hospital admission with a reduction in the number of episodes per patient from an average of 2.2-0.1 per year (p < 0.001). Concomitant use of antibiotic prophylaxis did not influence the number of hospital admission. CONCLUSION One-year intravenous IVIG significantly decreased the number of hospitalizations and length of stay in children with impaired antibody production. Social and economic impacts would be required.
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Affiliation(s)
- Karina Mescouto de Melo
- Hospital da Criança de Brasília José Alencar, Clínica de Alergia e Imunologia, Brasília, DF, Brazil.
| | - Lucas Macedo Alves
- Universidade de Brasília (UNB), Faculdade de Medicina, Brasília, DF, Brazil
| | | | - Fabíola Scancetti Tavares
- Hospital da Criança de Brasília José Alencar, Clínica de Alergia e Imunologia, Brasília, DF, Brazil; Hospital Universitário de Brasília (HUB), Brasília, DF, Brazil
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Veramendi-Espinoza LE, Zafra-Tanaka JH, Toribio-Dionicio C, Huamán MR, Pérez G, Córdova-Calderón W. Awareness of primary immunodeficiency diseases at a national pediatric reference center in Peru. EINSTEIN-SAO PAULO 2021; 19:eAO6289. [PMID: 34932757 PMCID: PMC8664282 DOI: 10.31744/einstein_journal/2021ao6289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Accepted: 04/09/2021] [Indexed: 11/22/2022] Open
Abstract
Objective To investigate the level of awareness of primary immunodeficiency diseases among physicians working at Instituto Nacional de Salud del Niño. Methods Cross-sectional study including pediatric residents and pediatricians working at the Instituto Nacional de Salud del Niño during the study period (2017-2019). Physicians working at the immunology unit and surgery departments were excluded. Three aspects of awareness of primary immunodeficiency diseases were investigated: education, general knowledge, and diagnostic suspicion and actions taken in the face of suspicion. Results This sample comprised 83 physicians with a median age of 33 years. Most physicians were women (71.1%) and half were pediatric residents. During their undergraduate studies, 43.1% had taken primary immunodeficiency disease courses, and 39.2% had attended conferences on this topic. During their residency training, 25.9% had taken primary immunodeficiency disease courses, and 60.3% had participated in conferences on this topic. Among pediatricians, 50% had taken primary immunodeficiency disease courses, and 53.1% had attended conferences on this topic. Only 39.8% of physicians reported being familiar with the list of 10 warning signs developed by the Jeffrey Modell Foundation. More than half of physicians considered the lack of access to laboratory tests the major challenge in making diagnosis of primary immunodeficiency diseases. Conclusion This study revealed limited awareness of primary immunodeficiency diseases among physicians working at Instituto Nacional de Salud del Niño. Although most physicians suspected primary immunodeficiency diseases in patients with a history of recurrent infections and frequent use of antibiotics, not all of them were familiar with the list of 10 warning signs proposed by the Jeffrey Modell Foundation, nor were they able to describe ancillary tests requested in suspected cases.
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Affiliation(s)
| | | | | | - Mariella R Huamán
- Sociedad Cientifica de San Fernando, Universidad Nacional Mayor de San Marcos, Lima, LIM, Peru
| | - Gabriela Pérez
- Unidad Funcional de Alergia, Asma e Inmunologia, Instituto Nacional de Salud del Niño, Breña, LIM Peru
| | - Wilmer Córdova-Calderón
- Unidad Funcional de Alergia, Asma e Inmunologia, Instituto Nacional de Salud del Niño, Breña, LIM Peru
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DInur-Schejter Y, Stepensky P. Social determinants of health and primary immunodeficiency. Ann Allergy Asthma Immunol 2021; 128:12-18. [PMID: 34628007 DOI: 10.1016/j.anai.2021.10.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2021] [Revised: 10/01/2021] [Accepted: 10/04/2021] [Indexed: 12/15/2022]
Abstract
OBJECTIVE Inborn errors of immunity (IEI) are rare genetic conditions affecting the immune system. The rate of IEI and their presentation, course, and treatment are all affected by a multitude of social determinants, eventually affecting prognosis. This review summarizes the current knowledge of the social determinants affecting infectious susceptibility, genetic predisposition, diagnosis, and treatment of IEI. DATA SOURCES PubMed. STUDY SELECTIONS Search terms included "consanguinity," "social determinants," and "founder effect." Further studies were selected based on relevant citations. RESULTS Changes in climate and human behavior have modulated the spread of disease vectors and infectious organisms. Consanguinity increases the rate of autosomal recessive conditions, changes the distribution, and affects the severity of IEI. Access to sophisticated genetic and immunologic diagnostic modalities affects genetic counseling and timely diagnosis. Effective genetic counseling should address to the patient's genetic background and ethical code. Access to appropriate and timely treatment of immunodeficiencies is scarce in some regions of the world. CONCLUSION High consanguinity rate and reduced access to prophylactic measures increase the burden of immunodeficiencies in many low- and medium-income countries. Furthermore, poor access to diagnostic and treatment modalities in these regions adversely affects patients' prognosis. Increased awareness among health care professionals and the public and increased collaboration with Western countries aid in diagnosis of these conditions. Further advancements require improved public funding to the prevention, diagnosis, and treatment of IEI.
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Affiliation(s)
- Yael DInur-Schejter
- Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel; Department of Bone Marrow Transplantation and Cancer Immunotherapy, Hadassah Ein Kerem Medical Center, Jerusalem, Israel.
| | - Polina Stepensky
- Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel; Department of Bone Marrow Transplantation and Cancer Immunotherapy, Hadassah Ein Kerem Medical Center, Jerusalem, Israel
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Abolhassani H, Azizi G, Sharifi L, Yazdani R, Mohsenzadegan M, Delavari S, Sohani M, Shirmast P, Chavoshzadeh Z, Mahdaviani SA, Kalantari A, Tavakol M, Jabbari-Azad F, Ahanchian H, Momen T, Sherkat R, Sadeghi-Shabestari M, Aleyasin S, Esmaeilzadeh H, Al-Herz W, Bousfiha AA, Condino-Neto A, Seppänen M, Sullivan KE, Hammarström L, Modell V, Modell F, Quinn J, Orange JS, Aghamohammadi A. Global systematic review of primary immunodeficiency registries. Expert Rev Clin Immunol 2021; 16:717-732. [PMID: 32720819 DOI: 10.1080/1744666x.2020.1801422] [Citation(s) in RCA: 67] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
INTRODUCTION During the last 4 decades, registration of patients with primary immunodeficiencies (PID) has played an essential role in different aspects of these diseases worldwide including epidemiological indexes, policymaking, quality controls of care/life, facilitation of genetic studies and clinical trials as well as improving our understanding about the natural history of the disease and the immune system function. However, due to the limitation of sustainable resources supporting these registries, inconsistency in diagnostic criteria and lack of molecular diagnosis as well as difficulties in the documentation and designing any universal platform, the global perspective of these diseases remains unclear. AREAS COVERED Published and unpublished studies from January 1981 to June 2020 were systematically reviewed on PubMed, Web of Science and Scopus. Additionally, the reference list of all studies was hand-searched for additional studies. This effort identified a total of 104614 registered patients and suggests identification of at least 10590 additional PID patients, mainly from countries located in Asia and Africa. Molecular defects in genes known to cause PID were identified and reported in 13852 (13.2% of all registered) patients. EXPERT OPINION Although these data suggest some progress in the identification and documentation of PID patients worldwide, achieving the basic requirement for the global PID burden estimation and registration of undiagnosed patients will require more reinforcement of the progress, involving both improved diagnostic facilities and neonatal screening.
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Affiliation(s)
- Hassan Abolhassani
- Research Center for Immunodeficiencies, Pediatrics Center of Excellence, Children's Medical Center, Tehran University of Medical Sciences , Tehran, Iran.,Division of Clinical Immunology, Department of Laboratory Medicine, Karolinska Institute at Karolinska University Hospital Huddinge , Stockholm, Sweden
| | - Gholamreza Azizi
- Non-Communicable Diseases Research Center, Alborz University of Medical Sciences , Karaj, Iran
| | - Laleh Sharifi
- Research Center for Immunodeficiencies, Pediatrics Center of Excellence, Children's Medical Center, Tehran University of Medical Sciences , Tehran, Iran.,Uro-Oncology Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Reza Yazdani
- Research Center for Immunodeficiencies, Pediatrics Center of Excellence, Children's Medical Center, Tehran University of Medical Sciences , Tehran, Iran
| | - Monireh Mohsenzadegan
- Research Center for Immunodeficiencies, Pediatrics Center of Excellence, Children's Medical Center, Tehran University of Medical Sciences , Tehran, Iran
| | - Samaneh Delavari
- Research Center for Immunodeficiencies, Pediatrics Center of Excellence, Children's Medical Center, Tehran University of Medical Sciences , Tehran, Iran.,Department of Medical Laboratory Sciences, Faculty of Allied Medical Sciences Iran University of Medical Sciences, Tehran, Iran
| | - Mahsa Sohani
- Research Center for Immunodeficiencies, Pediatrics Center of Excellence, Children's Medical Center, Tehran University of Medical Sciences , Tehran, Iran
| | - Paniz Shirmast
- Research Center for Immunodeficiencies, Pediatrics Center of Excellence, Children's Medical Center, Tehran University of Medical Sciences , Tehran, Iran
| | - Zahra Chavoshzadeh
- Pediatric Infections Research Center, Mofid Children's Hospital, Shahid Beheshti University of Medical Sciences , Tehran, Iran
| | - Seyed Alireza Mahdaviani
- Pediatric Respiratory Diseases Research Center, National Research Institute of Tuberculosis and Lung Diseases(NRITLD), Shahid Beheshti University of Medical Sciences , Tehran, Iran
| | - Arash Kalantari
- Department of Immunology and Allergy, Imam Khomeini Hospital, Tehran University of Medical Sciences , Tehran, Iran
| | - Marzieh Tavakol
- Non-Communicable Diseases Research Center, Alborz University of Medical Sciences , Karaj, Iran
| | | | - Hamid Ahanchian
- Allergy Research Center, Mashhad University of Medical Sciences , Mashhad, Iran
| | - Tooba Momen
- Department of Allergy and Clinical Immunology, Child Growth and Development Research Center, Research Institute for Primordial Prevention of Non-Communicable Disease, Isfahan University of Medical Sciences , Isfahan, Iran
| | - Roya Sherkat
- Acquired Immunodeficiency Research Center, Lsfahan University of Medical Sciences , Isfahan, Lran
| | - Mahnaz Sadeghi-Shabestari
- Immunology research center of Tabriz, TB and lung research center of Tabriz, Children Hospital, Tabriz University of Medical Science , Tabriz, Iran
| | - Soheila Aleyasin
- Allergy Research Center, Shiraz University of Medical Sciences , Shiraz, Iran
| | | | - Waleed Al-Herz
- Department of Pediatrics, Kuwait University , Kuwait City, Kuwait.,Allergy and Clinical Immunology Unit, Department of Pediatrics, Al-Sabah Hospital , Kuwait City, Kuwait
| | - Ahmed Aziz Bousfiha
- Laboratoire d'Immunologie Clinique, d'Inflammation Et d'Allergie LICIA, Faculty of Medicine and Pharmacy, Hassan II University , Casablanca, Morocco.,Clinical Immunology Unit, Casablanca Children's Hospital, Ibn Rochd Medical School, Hassan II University , Casablanca, Morocco.,The African Society for Immunodeficiencies (ASID) Registry
| | - Antonio Condino-Neto
- Department of Immunology, Institute of Biomedical Sciences, University of São Paulo , São Paulo, Brazil.,The Latin American Society for Immunodeficiencies (LASID) Registry
| | - Mikko Seppänen
- Adult Immunodeficiency Unit, Infectious Diseases, Inflammation Center, University of Helsinki and Helsinki University Hospital , Helsinki, Finland.,Rare Disease Center and Pediatric Research Center, Children's Hospital, University of Helsinki and Helsinki University Hospital , Helsinki, Finland.,European Society for Immunodeficiencies (ESID) Registry
| | - Kathleen E Sullivan
- Division of Allergy Immunology, Department of Pediatrics, The Children's Hospital of Philadelphia , Philadelphia, PA, USA.,The United States Immunodeficiency Network (USIDNET) Registry
| | - Lennart Hammarström
- Division of Clinical Immunology, Department of Laboratory Medicine, Karolinska Institute at Karolinska University Hospital Huddinge , Stockholm, Sweden
| | - Vicki Modell
- Jeffrey Modell Foundation (JMF) , New York City, NY, USA
| | - Fred Modell
- Jeffrey Modell Foundation (JMF) , New York City, NY, USA
| | - Jessica Quinn
- Jeffrey Modell Foundation (JMF) , New York City, NY, USA
| | - Jordan S Orange
- Jeffrey Modell Foundation (JMF) , New York City, NY, USA.,Department of Pediatrics, Columbia University College of Physicians and Surgeons , New York, NY, USA
| | - Asghar Aghamohammadi
- Research Center for Immunodeficiencies, Pediatrics Center of Excellence, Children's Medical Center, Tehran University of Medical Sciences , Tehran, Iran.,Iranian Primary Immunodeficiencies Network (IPIN), Tehran University of Medical Science , Tehran, Iran.,Asia Pacific Society for Immunodeficiencies (APSID) Registry
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Diagnosis of primary immunodeficiencies in Peru. Curr Opin Pediatr 2020; 32:798-804. [PMID: 33148966 DOI: 10.1097/mop.0000000000000964] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
PURPOSE OF REVIEW Primary immunodeficiencies (PIDs) are human inborn errors of immunity, leading to an increased susceptibility to infections, inflammatory manifestations, and malignancy. We estimate around 16 000 individuals with PIDs living in Peru who are still undiagnosed. The purpose of this review is to make a situational analysis of the diagnosis of PIDs in Peru. RECENT FINDINGS There is an evident underdiagnosis of PIDs in Peru. Insufficient awareness and lack of diagnostic tools can be solved partially by expanding the number and expertise of Clinical Immunologists and specialized medical centers. The availability of molecular testing at reasonable costs is mandatory to improve the diagnostic approach to patients with suspected PID. The development of didactic and innovative educational tools has been a critical strategy to improve PID awareness and diagnosis in Peru. SUMMARY Developing countries like Peru still have critical limitations to diagnose patients with PIDs such as insufficient awareness in physicians, lack of specialized reference centers, and unavailability of confirmatory genetic testing. Joint work between government, health professionals, patient organizations, and society is essential to overcome these limitations and provide a better future for patients with inborn errors of immunity.
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Leung D, Chua GT, Mondragon AV, Zhong Y, Nguyen-Ngoc-Quynh L, Imai K, Vignesh P, Suratannon N, Mao H, Lee WI, Kim YJ, Chan GCF, Liew WK, Huong LTM, Kanegane H, Muktiarti D, Zhao X, Santos-Ocampo FJ, Latiff AHA, Seger R, Ochs HD, Singh S, Lee PP, Lau YL. Current Perspectives and Unmet Needs of Primary Immunodeficiency Care in Asia Pacific. Front Immunol 2020; 11:1605. [PMID: 32903579 PMCID: PMC7438539 DOI: 10.3389/fimmu.2020.01605] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Accepted: 06/16/2020] [Indexed: 11/24/2022] Open
Abstract
Background: The Asia Pacific Society for Immunodeficiencies (APSID) conducted nine primary immunodeficiency (PID) Schools in 5 years since inauguration to provide PID care training for early career physicians in Asia Pacific, a region with divergent needs in PID resources and training. Objective: To identify differences in PID patient care resource and training needs across Asia Pacific and propose a corresponding action plan. Methods: The Human Development Index (HDI) indicates the degree of socio-economic development in each country/region. Information related to investigations and learning issues were extracted from the abstracts and personal statements from all Schools and mapped onto resource and training needs. Correlations between HDI and country/region-specific parameters were tested by two-tailed Pearson correlation. Results: A total of 427 abstracts were received in nine Schools between 2015 and 2020, predominantly on immunodeficiencies affecting cellular and humoral immunity. Genetic confirmation was described in 61.8% of abstracts, and its absence negatively correlated with HDI (r = −0.696, p = 0.004). Essential immunologic and genetic tests were not available in 25.4 and 29.5% of abstracts, respectively, and their absence negatively correlated with HDI (r = −0.788, p < 0.001; r = −0.739, p = 0.002). HDI positively correlated with average testing level (r = 0.742, p = 0.002). Cases from medium-HDI countries/regions focused on learning how to investigate a patient for PIDs in cases of severe or atypical infections, whereas those from very-high-HDI countries/regions, from which most faculty members originated, listed hematopoietic stem cell transplantation and gene therapy, newborn screening, and research as learning issues more frequently. Conclusion: There are unique HDI-related PID resource and training needs in each country/region. APSID proposes HDI group-specific strategies to improve PID care and education in her member countries/regions. Further quantitative analysis of needs in PID care in Asia Pacific is needed for lobbying governments to increase their support for PID care and research.
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Affiliation(s)
- Daniel Leung
- Department of Pediatrics and Adolescent Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Gilbert T Chua
- Department of Pediatrics and Adolescent Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Alric V Mondragon
- Department of Medicine, University of the Philippines-Philippine General Hospital, Manila, Philippines
| | - Youjia Zhong
- Khoo Teck Puat-National University Children's Medical Institute, National University Health System, Singapore, Singapore
| | | | - Kohsuke Imai
- Department of Community Pediatrics, Perinatal and Maternal Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Pandiarajan Vignesh
- Department of Pediatrics, Advanced Pediatrics Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Narissara Suratannon
- Pediatric Allergy and Clinical Immunology Research Unit, Division of Allergy and Immunology, Department of Pediatrics, Faculty of Medicine, Chulalongkorn University, King Chulalongkorn Memorial Hospital, Bangkok, Thailand
| | - Huawei Mao
- Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Wen-I Lee
- Primary Immunodeficiency Care and Research (PICAR) Institute, Chang Gung University College of Medicine, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Yae-Jean Kim
- Department of Pediatrics, Samsung Medical Center, School of Medicine, Sungkyunkwan University, Seoul, South Korea
| | - Godfrey C F Chan
- Department of Pediatrics and Adolescent Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Woei Kang Liew
- Rheumatology and Immunology Service, Department of Pediatric Medicine, KK Women's and Children's Hospital, Singapore, Singapore
| | | | - Hirokazu Kanegane
- Department of Child Health and Development, Tokyo Medical and Dental University, Tokyo, Japan
| | - Dina Muktiarti
- Department of Child Health, Faculty of Medicine, Universitas Indonesia - Cipto Mangunkusumo Hospital, Jakarta, Indonesia
| | - Xiaodong Zhao
- Children's Hospital of Chongqing Medical University, Chongqing, China
| | | | | | - Reinhard Seger
- Division of Immunology/HSCT, University Children's Hospital Zürich, Zürich, Switzerland
| | - Hans D Ochs
- Department of Pediatrics, Seattle Children's Research Institute, University of Washington, Seattle, WA, United States
| | - Surjit Singh
- Department of Pediatrics, Advanced Pediatrics Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Pamela P Lee
- Department of Pediatrics and Adolescent Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Yu Lung Lau
- Department of Pediatrics and Adolescent Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China
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Bustamante Ogando JC. Reply. J Allergy Clin Immunol 2020; 145:1029-1030. [PMID: 31955818 DOI: 10.1016/j.jaci.2019.12.894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Accepted: 12/13/2019] [Indexed: 11/18/2022]
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Global perspectives on primary immune deficiency diseases. STIEHM'S IMMUNE DEFICIENCIES 2020. [PMCID: PMC7258797 DOI: 10.1016/b978-0-12-816768-7.00054-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Villavicencio MF, Pedroza LA. Diagnosis of primary immunodeficiency diseases in the developing world: the need for education and networking with the developed world. Curr Opin Pediatr 2019; 31:835-842. [PMID: 31693595 DOI: 10.1097/mop.0000000000000834] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
PURPOSE OF REVIEW Even with the evident improvement in knowledge about clinical and molecular aspects and the technology used to diagnose primary immunodeficiency diseases (PIDs), there is still a significant delay in recognition of these diseases in the developing world, specifically in Latin America. In this review, the goal is to outline the challenges that need to overcome for the diagnosis of PIDs and the optimization of resources available based on our experience. RECENT FINDINGS We describe the advances achieved in the past decade in Latin America in terms of recognition of PIDs, as well as the need for improvement. We outline the need for continued medical education, the lack of resources for laboratory testing, and how genetic testing through next-generation sequencing (that is becoming a day-to-day tool) can be achieved in the developing world. SUMMARY We aim to gather information about the limitations and challenges for the diagnosis of PIDs in a low-resource environment and the opportunities to benefit from the available advanced tools for diagnosis.
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Affiliation(s)
| | - Luis Alberto Pedroza
- Universidad San Francisco de Quito, Colegio de Ciencias de la Salud-Hospital de los Valles, Quito, Ecuador
- Department of Pediatrics, Section of Immunology, Allergy, and Rheumatology, Baylor College of Medicine, Houston, Texas, USA
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Linares NA, Bouchard M, Gutiérrez NS, Colmenares M, Cantor-Garcia A, Gabaldon-Figueira JC, Bellorin AV, Rujano B, Peterson DL, Salmen S. Immunological features in pediatric patients with recurrent and severe infection: Identification of Primary Immunodeficiency Diseases in Merida, Venezuela. Allergol Immunopathol (Madr) 2019; 47:437-448. [PMID: 31371133 DOI: 10.1016/j.aller.2019.02.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Revised: 01/26/2019] [Accepted: 02/07/2019] [Indexed: 11/16/2022]
Abstract
INTRODUCTION AND OBJECTIVES Primary immunodeficiency diseases (PIDs) are disorders associated mainly with recurrent and severe infection and an increase in susceptibility to autoimmune conditions and cancer. In Venezuela, PIDs are underdiagnosed and there is usually a delay in their diagnosis. Hence there are no data concerning the frequency and type of PIDs that occur. The aim of this study was to identify and quantify the types of PIDs that occur in Merida, a population within Venezuela. PATIENTS OR MATERIALS AND METHODS Following an informative program designed to alert local health professionals to the warning signs for PIDs, patients with a history of recurrent infections were referred to the Instituto de Inmunologia Clinica, Universidad de Los Andes. RESULTS AND CONCLUSIONS During the three-year period January 2014 to January 2017, thirty-two cases of PIDs were identified in pediatric patients, and 17 different types of PIDs, were identified. Predominantly antibody deficiencies were most frequent (40.6%), followed by immunodeficiencies affecting cellular and humoral immunity (21.8%), congenital defects of phagocyte (18.7%), CID with associated or syndromic features (9.3%), defects in intrinsic and innate immunity (6.4%) and diseases of immune dysregulation (3.2%). These results have important implications not only to the future approach for management of patients in our regions, but add important knowledge concerning PIDs in Latin America and worldwide.
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Affiliation(s)
- N A Linares
- Instituto de Inmunología Clínica, Facultad de Medicina, Universidad de Los Andes, Merida, Venezuela
| | - M Bouchard
- Instituto de Inmunología Clínica, Facultad de Medicina, Universidad de Los Andes, Merida, Venezuela
| | - N S Gutiérrez
- Instituto de Inmunología Clínica, Facultad de Medicina, Universidad de Los Andes, Merida, Venezuela
| | - M Colmenares
- Centro de Microscopía Electrónica "Dr Ernesto Palacios Prü". Universidad de Los Andes, Mérida, Venezuela
| | - A Cantor-Garcia
- Instituto de Inmunología Clínica, Facultad de Medicina, Universidad de Los Andes, Merida, Venezuela
| | - J C Gabaldon-Figueira
- Instituto de Inmunología Clínica, Facultad de Medicina, Universidad de Los Andes, Merida, Venezuela
| | - A V Bellorin
- Instituto de Inmunología Clínica, Facultad de Medicina, Universidad de Los Andes, Merida, Venezuela
| | - B Rujano
- Departamento de Pediatría, Instituto Autónomo Hospital Universitario de Los Andes, Merida, Venezuela
| | - D L Peterson
- Department of Biochemistry and Molecular Biology, Virginia Commonwealth University, Richmond, VA, USA
| | - S Salmen
- Instituto de Inmunología Clínica, Facultad de Medicina, Universidad de Los Andes, Merida, Venezuela.
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12
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Transplantation of Hematopoietic Stem Cells for Primary Immunodeficiencies in Brazil: Challenges in Treating Rare Diseases in Developing Countries. J Clin Immunol 2018; 38:917-926. [PMID: 30470982 DOI: 10.1007/s10875-018-0564-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Accepted: 10/18/2018] [Indexed: 12/21/2022]
Abstract
The results of hematopoietic stem cell transplant (HSCT) for primary immunodeficiency diseases (PID) have been improving over time. Unfortunately, developing countries do not experience the same results. This first report of Brazilian experience of HSCT for PID describes the development and results in the field. We included data from transplants in 221 patients, performed at 11 centers which participated in the Brazilian collaborative group, from July 1990 to December 2015. The majority of transplants were concentrated in one center (n = 123). The median age at HSCT was 22 months, and the most common diseases were severe combined immunodeficiency (SCID) (n = 67) and Wiskott-Aldrich syndrome (WAS) (n = 67). Only 15 patients received unconditioned transplants. Cumulative incidence of GVHD grades II to IV was 23%, and GVHD grades III to IV was 10%. The 5-year overall survival was 71.6%. WAS patients had better survival compared to other diseases. Most deaths (n = 53) occurred in the first year after transplantation mainly due to infection (55%) and GVHD (13%). Although transplant for PID patients in Brazil has evolved since its beginning, we still face some challenges like delayed diagnosis and referral, severe infections before transplant, a limited number of transplant centers with expertise, and resources for more advanced techniques. Measures like newborn screening for SCID may hasten the diagnosis and ameliorate patients' conditions at the moment of transplant.
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13
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Abolhassani H, Kiaee F, Tavakol M, Chavoshzadeh Z, Mahdaviani SA, Momen T, Yazdani R, Azizi G, Habibi S, Gharagozlou M, Movahedi M, Hamidieh AA, Behniafard N, Nabavi M, Bemanian MH, Arshi S, Molatefi R, Sherkat R, Shirkani A, Amin R, Aleyasin S, Faridhosseini R, Jabbari-Azad F, Mohammadzadeh I, Ghaffari J, Shafiei A, Kalantari A, Mansouri M, Mesdaghi M, Babaie D, Ahanchian H, Khoshkhui M, Soheili H, Eslamian MH, Cheraghi T, Dabbaghzadeh A, Tavassoli M, Kalmarzi RN, Mortazavi SH, Kashef S, Esmaeilzadeh H, Tafaroji J, Khalili A, Zandieh F, Sadeghi-Shabestari M, Darougar S, Behmanesh F, Akbari H, Zandkarimi M, Abolnezhadian F, Fayezi A, Moghtaderi M, Ahmadiafshar A, Shakerian B, Sajedi V, Taghvaei B, Safari M, Heidarzadeh M, Ghalebaghi B, Fathi SM, Darabi B, Bazregari S, Bazargan N, Fallahpour M, Khayatzadeh A, Javahertrash N, Bashardoust B, Zamani M, Mohsenzadeh A, Ebrahimi S, Sharafian S, Vosughimotlagh A, Tafakoridelbari M, Rahimi M, Ashournia P, Razaghian A, Rezaei A, Mamishi S, Parvaneh N, Rezaei N, Hammarström L, Aghamohammadi A. Fourth Update on the Iranian National Registry of Primary Immunodeficiencies: Integration of Molecular Diagnosis. J Clin Immunol 2018; 38:816-832. [PMID: 30302726 DOI: 10.1007/s10875-018-0556-1] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Accepted: 09/26/2018] [Indexed: 12/29/2022]
Abstract
BACKGROUND The number of inherited diseases and the spectrum of clinical manifestations of primary immunodeficiency disorders (PIDs) are ever-expanding. Molecular diagnosis using genomic approaches should be performed for all PID patients since it provides a resource to improve the management and to estimate the prognosis of patients with these rare immune disorders. METHOD The current update of Iranian PID registry (IPIDR) contains the clinical phenotype of newly registered patients during last 5 years (2013-2018) and the result of molecular diagnosis in patients enrolled for targeted and next-generation sequencing. RESULTS Considering the newly diagnosed patients (n = 1395), the total number of registered PID patients reached 3056 (1852 male and 1204 female) from 31 medical centers. The predominantly antibody deficiency was the most common subcategory of PID (29.5%). The putative causative genetic defect was identified in 1014 patients (33.1%) and an autosomal recessive pattern was found in 79.3% of these patients. Among the genetically different categories of PID patients, the diagnostic rate was highest in defects in immune dysregulation and lowest in predominantly antibody deficiencies and mutations in the MEFV gene were the most frequent genetic disorder in our cohort. CONCLUSIONS During a 20-year registration of Iranian PID patients, significant changes have been observed by increasing the awareness of the medical community, national PID network establishment, improving therapeutic facilities, and recently by inclusion of the molecular diagnosis. The current collective study of PID phenotypes and genotypes provides a major source for ethnic surveillance, newborn screening, and genetic consultation for prenatal and preimplantation genetic diagnosis.
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Affiliation(s)
- Hassan Abolhassani
- Research Center for Immunodeficiencies, Pediatrics Center of Excellence, Children's Medical Center Hospital, Tehran University of Medical Sciences, Tehran, Iran.,Division of Clinical Immunology, Department of Laboratory Medicine, Karolinska Institute, Karolinska University Hospital Huddinge, Stockholm, Sweden.,Iranian Primary Immunodeficiencies Network (IPIN), Tehran University of Medical Science, Tehran, Iran
| | - Fatemeh Kiaee
- Research Center for Immunodeficiencies, Pediatrics Center of Excellence, Children's Medical Center Hospital, Tehran University of Medical Sciences, Tehran, Iran.,Iranian Primary Immunodeficiencies Network (IPIN), Tehran University of Medical Science, Tehran, Iran
| | - Marzieh Tavakol
- Non-communicable Diseases Research Center, Alborz University of Medical Sciences, Karaj, Iran
| | - Zahra Chavoshzadeh
- Pediatric Infections Research Center, Mofid Children's Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Seyed Alireza Mahdaviani
- Pediatric Respiratory Diseases Research Center, National Research Institute of Tuberculosis and Lung Diseases (NRITLD), Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Tooba Momen
- Department of Allergy and Clinical Immunology, Child Growth and Development Research Center, Research Institute for Primordial Prevention of Non-Communicable Disease, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Reza Yazdani
- Research Center for Immunodeficiencies, Pediatrics Center of Excellence, Children's Medical Center Hospital, Tehran University of Medical Sciences, Tehran, Iran.,Iranian Primary Immunodeficiencies Network (IPIN), Tehran University of Medical Science, Tehran, Iran
| | - Gholamreza Azizi
- Department of Laboratory Medicine, Imam Hassan Mojtaba Hospital, Alborz University of Medical Sciences, Karaj, Iran
| | - Sima Habibi
- Research Center for Immunodeficiencies, Pediatrics Center of Excellence, Children's Medical Center Hospital, Tehran University of Medical Sciences, Tehran, Iran.,Iranian Primary Immunodeficiencies Network (IPIN), Tehran University of Medical Science, Tehran, Iran
| | - Mohammad Gharagozlou
- Division of Allergy and Clinical Immunology, Department of Pediatrics, Pediatrics Center of Excellence, Children's Medical Center, Tehran, University of Medical Sciences, Tehran, Iran
| | - Masoud Movahedi
- Division of Allergy and Clinical Immunology, Department of Pediatrics, Pediatrics Center of Excellence, Children's Medical Center, Tehran, University of Medical Sciences, Tehran, Iran
| | - Amir Ali Hamidieh
- Hematology, Oncology and Stem Cell Transplantation Research Centre, Tehran University of Medical Sciences, Tehran, Iran
| | - Nasrin Behniafard
- Department of Allergy and Clinical Immunology, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Mohammamd Nabavi
- Department of Allergy and Clinical Immunology, Rasool e Akram Hospital, Iran University of Medical Sciences, Tehran, Iran
| | - Mohammad Hassan Bemanian
- Department of Allergy and Clinical Immunology, Rasool e Akram Hospital, Iran University of Medical Sciences, Tehran, Iran
| | - Saba Arshi
- Department of Allergy and Clinical Immunology, Rasool e Akram Hospital, Iran University of Medical Sciences, Tehran, Iran
| | - Rasol Molatefi
- Department of Pediatrics, Bo-Ali children's Hospital of Ardabil University of Medical Sciences, Ardabil, Iran
| | - Roya Sherkat
- Acquired Immunodeficiency Research Center, lsfahan University of Medical Sciences, Isfahan, Iran
| | - Afshin Shirkani
- Allergy and Clinical Immunology Department, Bushehr University of Medical Science, School of Medicine, Bushehr, Iran
| | - Reza Amin
- Allergy Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Soheila Aleyasin
- Allergy Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Reza Faridhosseini
- Allergy Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | | | - Iraj Mohammadzadeh
- Noncommunicable Pediatric Diseases Research Center, Amirkola Hospital, Babol University of Medical Sciences, Babol, Iran
| | - Javad Ghaffari
- Department of Pediatrics, Mazandaran University of Medical Sciences, Sari, Iran
| | - Alireza Shafiei
- Department of Immunology, Bahrami Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Arash Kalantari
- Department of Immunology and Allergy, Imam Khomeini Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahboubeh Mansouri
- Immunology and Allergy Department, Mofid Children's Hospital, Shahid Beheshti University of Medical Science, Tehran, Iran
| | - Mehrnaz Mesdaghi
- Immunology and Allergy Department, Mofid Children's Hospital, Shahid Beheshti University of Medical Science, Tehran, Iran
| | - Delara Babaie
- Pediatric Infections Research Center, Mofid Children's Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hamid Ahanchian
- Allergy Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Maryam Khoshkhui
- Allergy Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Habib Soheili
- Department of Pediatrics, School of Medicine, Arak University of Medical Sciences, Arak, Iran
| | | | - Taher Cheraghi
- Department of Pediatrics, 17th Shahrivar Children's Hospital, Guilan University of Medical Sciences, Rasht, Iran
| | - Abbas Dabbaghzadeh
- Noncommunicable Pediatric Diseases Research Center, Amirkola Hospital, Babol University of Medical Sciences, Babol, Iran.,Department of Allergy and Clinical Immunology, Pediatric Infectious Diseases Research Center, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Mahmoud Tavassoli
- Department of Immunology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Rasoul Nasiri Kalmarzi
- Cellular & Molecular Research Center, Kurdistan University of Medical Sciences, Sanandaj, Iran
| | | | - Sara Kashef
- Allergy Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | | | - Javad Tafaroji
- Department of Pediatrics, Qom University of Medical Sciences, Qom, Iran
| | - Abbas Khalili
- Department of Pediatrics, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Fariborz Zandieh
- Department of Immunology, Bahrami Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Sepideh Darougar
- Pediatric Respiratory Diseases Research Center, National Research Institute of Tuberculosis and Lung Diseases (NRITLD), Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Fatemeh Behmanesh
- Allergy Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Hedayat Akbari
- Allergy Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | | | - Farhad Abolnezhadian
- Department of Immunology and Allergy, Ahvaz University of Medical Sciences, Ahvaz, Iran
| | - Abbas Fayezi
- Department of Immunology and Allergy, Ahvaz University of Medical Sciences, Ahvaz, Iran
| | - Mojgan Moghtaderi
- Allergy Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | | | - Behzad Shakerian
- Department of Immunology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Vahid Sajedi
- Department of Immunology and Allergy, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
| | - Behrang Taghvaei
- Department of Immunology and Allergy, Semnan University of Medical Sciences, Semnan, Iran
| | - Mojgan Safari
- Department of Pediatrics, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Marzieh Heidarzadeh
- Department of Immunology and Allergy, Kashan University of Medical Sciences, Kashan, Iran
| | - Babak Ghalebaghi
- Department of Pediatrics, 17th Shahrivar Children's Hospital, Guilan University of Medical Sciences, Rasht, Iran
| | - Seyed Mohammad Fathi
- Department of Immunology and Allergy, Qazvin University of Medical Sciences, Qazvin, Iran
| | - Behzad Darabi
- Department of Immunology and Allergy, Ilam University of Medical Sciences, Ilam, Iran
| | - Saeed Bazregari
- Allergy and Clinical Immunology Department, Bushehr University of Medical Science, School of Medicine, Bushehr, Iran
| | - Nasrin Bazargan
- Department of Immunology and Allergy, Kerman University of Medical Sciences, Kerman, Iran
| | - Morteza Fallahpour
- Department of Allergy and Clinical Immunology, Rasool e Akram Hospital, Iran University of Medical Sciences, Tehran, Iran
| | - Alireza Khayatzadeh
- Research Center for Immunodeficiencies, Pediatrics Center of Excellence, Children's Medical Center Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Naser Javahertrash
- Department of Allergy and Clinical Immunology, Rasool e Akram Hospital, Iran University of Medical Sciences, Tehran, Iran
| | - Bahram Bashardoust
- Pediatric Respiratory Diseases Research Center, National Research Institute of Tuberculosis and Lung Diseases (NRITLD), Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammadali Zamani
- Department of Immunology and Allergy, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Azam Mohsenzadeh
- Department of Pediatrics, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - Sarehsadat Ebrahimi
- Division of Allergy and Clinical Immunology, Department of Pediatrics, Pediatrics Center of Excellence, Children's Medical Center, Tehran, University of Medical Sciences, Tehran, Iran
| | - Samin Sharafian
- Division of Allergy and Clinical Immunology, Department of Pediatrics, Pediatrics Center of Excellence, Children's Medical Center, Tehran, University of Medical Sciences, Tehran, Iran
| | - Ahmad Vosughimotlagh
- Division of Allergy and Clinical Immunology, Department of Pediatrics, Pediatrics Center of Excellence, Children's Medical Center, Tehran, University of Medical Sciences, Tehran, Iran
| | - Mitra Tafakoridelbari
- Division of Allergy and Clinical Immunology, Department of Pediatrics, Pediatrics Center of Excellence, Children's Medical Center, Tehran, University of Medical Sciences, Tehran, Iran
| | - Maziar Rahimi
- Division of Allergy and Clinical Immunology, Department of Pediatrics, Pediatrics Center of Excellence, Children's Medical Center, Tehran, University of Medical Sciences, Tehran, Iran
| | - Parisa Ashournia
- Division of Allergy and Clinical Immunology, Department of Pediatrics, Pediatrics Center of Excellence, Children's Medical Center, Tehran, University of Medical Sciences, Tehran, Iran
| | - Anahita Razaghian
- Division of Allergy and Clinical Immunology, Department of Pediatrics, Pediatrics Center of Excellence, Children's Medical Center, Tehran, University of Medical Sciences, Tehran, Iran
| | - Arezou Rezaei
- Research Center for Immunodeficiencies, Pediatrics Center of Excellence, Children's Medical Center Hospital, Tehran University of Medical Sciences, Tehran, Iran.,Iranian Primary Immunodeficiencies Network (IPIN), Tehran University of Medical Science, Tehran, Iran
| | - Setareh Mamishi
- Pediatric Infectious Diseases Research Center, Pediatrics Center of Excellence, Children's Medical Center, Tehran University of Medical Science, Tehran, Iran
| | - Nima Parvaneh
- Research Center for Immunodeficiencies, Pediatrics Center of Excellence, Children's Medical Center Hospital, Tehran University of Medical Sciences, Tehran, Iran.,Iranian Primary Immunodeficiencies Network (IPIN), Tehran University of Medical Science, Tehran, Iran
| | - Nima Rezaei
- Research Center for Immunodeficiencies, Pediatrics Center of Excellence, Children's Medical Center Hospital, Tehran University of Medical Sciences, Tehran, Iran.,Iranian Primary Immunodeficiencies Network (IPIN), Tehran University of Medical Science, Tehran, Iran
| | - Lennart Hammarström
- Division of Clinical Immunology, Department of Laboratory Medicine, Karolinska Institute, Karolinska University Hospital Huddinge, Stockholm, Sweden
| | - Asghar Aghamohammadi
- Research Center for Immunodeficiencies, Pediatrics Center of Excellence, Children's Medical Center Hospital, Tehran University of Medical Sciences, Tehran, Iran. .,Iranian Primary Immunodeficiencies Network (IPIN), Tehran University of Medical Science, Tehran, Iran.
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14
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Condino-Neto A, Espinosa-Rosales FJ. Changing the Lives of People With Primary Immunodeficiencies (PI) With Early Testing and Diagnosis. Front Immunol 2018; 9:1439. [PMID: 29997619 PMCID: PMC6031256 DOI: 10.3389/fimmu.2018.01439] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Accepted: 06/11/2018] [Indexed: 11/20/2022] Open
Affiliation(s)
- Antonio Condino-Neto
- Department of Immunology, Institute of Biomedical Sciences, Institute of Tropical Medicine, University of São Paulo, São Paulo, Brazil.,Latin American Society for Primary Immunodeficiencies, Santiago, Chile
| | - Francisco J Espinosa-Rosales
- Latin American Society for Primary Immunodeficiencies, Santiago, Chile.,Fundación Mexicana para Niñas y Niños con Inmunodeficiencias (FUMENI), Mexico, Mexico
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15
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Segundo GRS, Nguyen ATV, Thuc HT, Nguyen LNQ, Kobayashi RH, Le HT, Le HTM, Torgerson TR, Ochs HD. Dried Blood Spots, an Affordable Tool to Collect, Ship, and Sequence gDNA from Patients with an X-Linked Agammaglobulinemia Phenotype Residing in a Developing Country. Front Immunol 2018; 9:289. [PMID: 29503650 PMCID: PMC5820318 DOI: 10.3389/fimmu.2018.00289] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2017] [Accepted: 02/01/2018] [Indexed: 11/16/2022] Open
Abstract
Background New sequencing techniques have revolutionized the identification of the molecular basis of primary immunodeficiency disorders (PID) not only by establishing a gene-based diagnosis but also by facilitating defect-specific treatment strategies, improving quality of life and survival, and allowing factual genetic counseling. Because these techniques are generally not available for physicians and their patients residing in developing countries, collaboration with overseas laboratories has been explored as a possible, albeit cumbersome, strategy. To reduce the cost of time and temperature-sensitive shipping, we selected Guthrie cards, developed for newborn screening, to collect dried blood spots (DBS), as a source of DNA that can be shipped by regular mail at minimal cost. Method Blood was collected and blotted onto the filter paper of Guthrie cards by completely filling three circles. We enrolled 20 male patients with presumptive X-linked agammaglobulinemia (XLA) cared for at the Vietnam National Children’s Hospital, their mothers, and several sisters for carrier analysis. DBS were stored at room temperature until ready to be shipped together, using an appropriately sized envelope, to a CLIA-certified laboratory in the US for sequencing. The protocol for Sanger sequencing was modified to account for the reduced quantity of gDNA extracted from DBS. Result High-quality gDNA could be extracted from every specimen. Bruton tyrosine kinase (BTK) mutations were identified in 17 of 20 patients studied, confirming the diagnosis of XLA in 85% of the study cohort. Type and location of the mutations were similar to those reported in previous reviews. The mean age when XLA was suspected clinically was 4.6 years, similar to that reported by Western countries. Two of 15 mothers, each with an affected boy, had a normal BTK sequence, suggesting gonadal mosaicism. Conclusion DBS collected on Guthrie cards can be shipped inexpensively by airmail across continents, providing sufficient high-quality gDNA for Sanger sequencing overseas. By using this method of collecting gDNA, we were able to confirm the diagnosis of XLA in 17 of 20 Vietnamese patients with the clinical diagnosis of agammaglobulinemia.
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Affiliation(s)
- Gesmar R S Segundo
- University of Washington and Seattle Children's Research Institute, Seattle, WA, United States.,Department of Pediatrics, Universidade Federal de Uberlandia, Uberlandia, Brazil
| | | | | | | | | | - Hai T Le
- National Children's Hospital, Hanoi, Vietnam
| | | | - Troy R Torgerson
- University of Washington and Seattle Children's Research Institute, Seattle, WA, United States
| | - Hans D Ochs
- University of Washington and Seattle Children's Research Institute, Seattle, WA, United States
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