1
|
Pérez EM, Torbay AG, López MS, de la Cámara RCM, Jiménez CR, Álvarez MÁM, Blanco JN, Gianelli C, Hijón CC, Granados EL, Pena RR, Del Pozo Mate Á, García-Morato MB. Genetics of inborn errors of immunity: Diagnostic strategies and new approaches to CNV detection. Eur J Clin Invest 2024; 54:e14191. [PMID: 38440843 DOI: 10.1111/eci.14191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Revised: 02/20/2024] [Accepted: 02/25/2024] [Indexed: 03/06/2024]
Abstract
BACKGROUND Genetic diagnosis of inborn errors of immunity (IEI) is complex due to the large number of genes involved and their molecular features. Missense variants have been reported as the most common cause of IEI. However, the frequency of copy number variants (CNVs) may be underestimated since their detection requires specific quantitative techniques. At this point, the use of Next Generation Sequencing (NGS) is acquiring relevance. METHODS In this article, we present our experience in the genetic diagnosis of IEI based on three diagnostic algorithms that allowed the detection of single nucleotide variants (SNVs) and CNVs. Following this approximation, 703 index cases were evaluated between 2014 and 2021. Sanger sequencing, MLPA, CGH array, breakpoint spanning PCR or a customized NGS-based multigene-targeted panel were performed. RESULTS A genetic diagnosis was reached in 142 of the 703 index cases (20%), 19 of them presented deletions as causal variants. Deletions were also detected in 5 affected relatives and 16 healthy carriers during the family studies. Additionally, we compile, characterize and present all the CNVs detected by our diagnostic algorithms, representing the largest cohort of deletions related to IEI to date. Furthermore, three bioinformatic tools (LACONv, XHMM, VarSeq™) based on NGS data were evaluated. VarSeq™ was the most sensitive and specific bioinformatic tool; detecting 21/23 (91%) deletions located in captured regions. CONCLUSION Based on our results, we propose a strategy to guide the molecular diagnosis that can be followed by expert and non-expert centres in the field of IEI.
Collapse
Affiliation(s)
| | | | - Mario Solis López
- Bioinformatics Section, Institute of Medical and Molecular Genetics (INGEMM)-IdiPAZ, La Paz University Hospital, UAM, Madrid, Spain
| | | | - Carmen Rodríguez Jiménez
- Metabolic Disease Section, Institute of Medical and Molecular Genetics (INGEMM)-IdiPAZ, La Paz University Hospital, Madrid, Spain
- Group of Dislipemias of genetic origin and metabolic diseases, IdiPAZ, La Paz University Hospital, Madrid, Spain
| | - Mari Ángeles Mori Álvarez
- Functional and Structural Genomics Section, Institute of Medical and Molecular Genetics (INGEMM)-IdiPAZ, La Paz University Hospital, Madrid, Spain
- Center for Biomedical Network Research on Rare Diseases, Madrid, Spain
| | - Julián Nevado Blanco
- Functional and Structural Genomics Section, Institute of Medical and Molecular Genetics (INGEMM)-IdiPAZ, La Paz University Hospital, Madrid, Spain
- Center for Biomedical Network Research on Rare Diseases, Madrid, Spain
| | - Carla Gianelli
- Immunology Department, La Paz University Hospital, Madrid, Spain
- Center for Biomedical Network Research on Rare Diseases (CIBERER U767), Madrid, Spain
- La Paz Institute of Biomedical Research, Madrid, Spain
| | | | - Eduardo López Granados
- Immunology Department, La Paz University Hospital, Madrid, Spain
- Center for Biomedical Network Research on Rare Diseases (CIBERER U767), Madrid, Spain
- La Paz Institute of Biomedical Research, Madrid, Spain
| | - Rebeca Rodríguez Pena
- Immunology Department, La Paz University Hospital, Madrid, Spain
- Center for Biomedical Network Research on Rare Diseases (CIBERER U767), Madrid, Spain
- La Paz Institute of Biomedical Research, Madrid, Spain
| | - Ángela Del Pozo Mate
- Bioinformatics Section, Institute of Medical and Molecular Genetics (INGEMM)-IdiPAZ, La Paz University Hospital, UAM, Madrid, Spain
- Center for Biomedical Network Research on Rare Diseases, Madrid, Spain
- ERN-ITHACA, La Paz University Hospital, Madrid, Spain
| | - María Bravo García-Morato
- Immunology Department, La Paz University Hospital, Madrid, Spain
- Center for Biomedical Network Research on Rare Diseases (CIBERER U767), Madrid, Spain
- La Paz Institute of Biomedical Research, Madrid, Spain
| |
Collapse
|
2
|
Banday AZ, Nisar R, Patra PK, Kaur A, Sadanand R, Chaudhry C, Bukhari STA, Banday SZ, Bhattarai D, Notarangelo LD. Clinical and Immunological Features, Genetic Variants, and Outcomes of Patients with CD40 Deficiency. J Clin Immunol 2023; 44:17. [PMID: 38129705 PMCID: PMC11252661 DOI: 10.1007/s10875-023-01633-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Accepted: 11/27/2023] [Indexed: 12/23/2023]
Abstract
PURPOSE Inherited deficiencies of CD40 and CD40 ligand (CD40L) reflect the crucial immunological functions of CD40-CD40L interaction/signaling. Although numerous studies have provided a detailed description of CD40L deficiency, reports of CD40 deficiency are scarce. Herein, we describe the characteristics of all reported patients with CD40 deficiency. METHODS The PubMed, Embase and Web of Science databases were searched for relevant literature published till 7th August 2023. Study deduplication and identification of relevant reports was performed using the online PICO Portal. The data were extracted using a pre-designed data extraction form and the SPSS software was used for analysis. RESULTS Systematic literature review revealed 40 unique patients with CD40 deficiency. Respiratory tract and gastrointestinal infections were the predominant clinical manifestations (observed in 93% and 57% patients, respectively). Sclerosing cholangitis has been reported in nearly one-third of patients. Cryptosporidium sp. (29%) and Pneumocystis jirovecii (21%) were the most common microbes identified. Very low to undetectable IgG levels and severely reduced/absent switch memory B cells were observed in all patients tested/reported. Elevated IgM levels were observed in 69% patients. Overall, splice-site and missense variants were the most common (36% and 32%, respectively) molecular defects identified. All patients were managed with immunoglobulin replacement therapy and antimicrobial prophylaxis was utilized in a subset. Hematopoietic stem cell transplantation (HSCT) has been performed in 45% patients (curative outcome observed in 73% of these patients). Overall, a fatal outcome was reported in 21% patients. CONCLUSIONS We provide a comprehensive description of all important aspects of CD40 deficiency. HSCT is a promising curative treatment option for CD40 deficiency.
Collapse
Affiliation(s)
- Aaqib Zaffar Banday
- Department of Pediatrics, Government Medical College (GMC), Srinagar, India
- Clinical Immunology & Rheumatology Division, Department of Pediatrics, Khyber Medical Institute, Srinagar, India
- Rheumatology Division, Kashmir Clinics Group, Srinagar, India
| | - Rahila Nisar
- Department of Microbiology, Government Medical College (GMC), Baramulla, India
| | - Pratap Kumar Patra
- Department of Pediatrics, All India Institute of Medical Sciences (AIIMS), Patna, 801507, India.
| | - Anit Kaur
- Department of Translational & Regenerative Medicine, Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh, India
| | - Rohit Sadanand
- Division of Genetics, Department of Pediatrics, All India Institute of Medical Sciences (AIIMS), New Delhi, India
| | - Chakshu Chaudhry
- Suma Genomics, Manipal, India
- Department of Pediatrics, Maharishi Markandeshwar College of Medical Sciences and Research, Ambala, India
| | | | - Saquib Zaffar Banday
- Department of Medical-Hematoncology and Stem Cell Transplant, Paras Hospital, Srinagar, India
| | | | - Luigi D Notarangelo
- Laboratory of Clinical Immunology and Microbiology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, 20892, USA
| |
Collapse
|
3
|
Peng XP, Al-Ddafari MS, Caballero-Oteyza A, El Mezouar C, Mrovecova P, Dib SE, Massen Z, Smahi MCE, Faiza A, Hassaïne RT, Lefranc G, Aribi M, Grimbacher B. Next generation sequencing (NGS)-based approach to diagnosing Algerian patients with suspected inborn errors of immunity (IEIs). Clin Immunol 2023; 256:109758. [PMID: 37678716 DOI: 10.1016/j.clim.2023.109758] [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: 05/04/2023] [Revised: 07/23/2023] [Accepted: 09/02/2023] [Indexed: 09/09/2023]
Abstract
The advent of next-generation sequencing (NGS) technologies has greatly expanded our understanding of both the clinical spectra and genetic landscape of inborn errors of immunity (IEIs). Endogamous populations may be enriched for unique, ancestry-specific disease-causing variants, a consideration that significantly impacts molecular testing and analysis strategies. Herein, we report on the application of a 2-step NGS-based testing approach beginning with targeted gene panels (TGPs) tailored to specific IEI subtypes and reflexing to whole exome sequencing (WES) if negative for Northwest Algerian patients with suspected IEIs. Our overall diagnostic yield of 57% is comparable to others broadly applying short-read NGS to IEI detection, but data from our localized cohort show some similarities and differences from NGS studies performed on larger regional IEI cohorts. This suggests the importance of tailoring diagnostic strategies to local demographics and needs, but also highlights ongoing concerns inherent to the application of genomics for clinical IEI diagnostics.
Collapse
Affiliation(s)
- Xiao P Peng
- Institute for Immunodeficiency, Center for Chronic Immunodeficiency, Medical Center, Faculty of Medicine, Albert-Ludwigs-University of Freiburg, Germany; Department of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, United States of America.
| | - Moudjahed Saleh Al-Ddafari
- Laboratory of Applied Molecular Biology and Immunology, W0414100, University of Tlemcen, Algeria; Institute for Immunodeficiency, Center for Chronic Immunodeficiency, Medical Center, Faculty of Medicine, Albert-Ludwigs-University of Freiburg, Germany
| | - Andres Caballero-Oteyza
- Institute for Immunodeficiency, Center for Chronic Immunodeficiency, Medical Center, Faculty of Medicine, Albert-Ludwigs-University of Freiburg, Germany; RESIST - Cluster of Excellence 2155 to Hanover Medical School, Satellite Center Freiburg, Germany
| | - Chahrazed El Mezouar
- Laboratory of Applied Molecular Biology and Immunology, W0414100, University of Tlemcen, Algeria; Pediatric Department, Medical Center University of Tlemcen, Faculty of Medicine, University of Tlemcen, Algeria
| | - Pavla Mrovecova
- Institute for Immunodeficiency, Center for Chronic Immunodeficiency, Medical Center, Faculty of Medicine, Albert-Ludwigs-University of Freiburg, Germany
| | - Saad Eddin Dib
- Pediatric Department, Medical Center University of Tlemcen, Faculty of Medicine, University of Tlemcen, Algeria
| | - Zoheir Massen
- Pediatric Department, Medical Center University of Tlemcen, Faculty of Medicine, University of Tlemcen, Algeria
| | - Mohammed Chems-Eddine Smahi
- Laboratory of Applied Molecular Biology and Immunology, W0414100, University of Tlemcen, Algeria; Specialized Mother-Child Hospital of Tlemcen, Department of Neonatology, Faculty of Medicine, University of Tlemcen, Algeria
| | - Alddafari Faiza
- Department of Internal Medicine, Medical Center University of Tlemcen, Faculty of Medicine, University of Tlemcen, Tlemcen, Algeria
| | | | - Gérard Lefranc
- Institute of Human Genetics, UMR 9002 CNRS-University of Montpellier, France
| | - Mourad Aribi
- Laboratory of Applied Molecular Biology and Immunology, W0414100, University of Tlemcen, Algeria.
| | - Bodo Grimbacher
- Institute for Immunodeficiency, Center for Chronic Immunodeficiency, Medical Center, Faculty of Medicine, Albert-Ludwigs-University of Freiburg, Germany; DZIF - German Center for Infection Research, Satellite Center Freiburg, Germany; CIBSS - Centre for Integrative Biological Signalling Studies, Albert-Ludwigs University, Freiburg, Germany; RESIST - Cluster of Excellence 2155 to Hanover Medical School, Satellite Center Freiburg, Germany.
| |
Collapse
|
4
|
Bizzari S, Nair P, Hana S, Deepthi A, Al-Ali MT, Al-Gazali L, El-Hayek S. Spectrum of genetic disorders and gene variants in the United Arab Emirates national population: insights from the CTGA database. Front Genet 2023; 14:1177204. [PMID: 37214420 PMCID: PMC10194840 DOI: 10.3389/fgene.2023.1177204] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Accepted: 04/17/2023] [Indexed: 05/24/2023] Open
Abstract
Like many other Arab countries, the United Arab Emirates (UAE) has a relatively high prevalence of genetic disorders. Here we present the first review and analysis of all genetic disorders and gene variants reported in Emirati nationals and hosted on the Catalogue for Transmission Genetics in Arabs (CTGA), an open-access database hosting bibliographic data on human gene variants associated with inherited or heritable phenotypes in Arabs. To date, CTGA hosts 665 distinct genetic conditions that have been described in Emiratis, 621 of which follow a clear Mendelian inheritance. Strikingly, over half of these are extremely rare according to global prevalence rates, predominantly with an autosomal recessive mode of inheritance. This is likely due to the relatively high consanguinity rates within the Emirati population. The 665 conditions include disorders that are unique to the Emirati population, as well as clearly monogenic disorders that have not yet been mapped to a causal genetic locus. We also describe 1,365 gene variants reported in Emiratis, most of which are substitutions and over half are classified as likely pathogenic or pathogenic. Of these, 235 had not been reported on the international databases dbSNP and Clinvar, as of December 2022. Further analysis of this Emirati variant dataset allows a comparison of clinical significance as reported by Clinvar and CTGA, where the latter is derived from the study cited. A total of 307 pathogenic/likely pathogenic variants from CTGA's Emirati dataset, were classified as benign, variants of uncertain significance, or were missing a clinical significance or had not been reported by Clinvar. In conclusion, we present here the spectrum of genetic disorders and gene variants reported in Emiratis. This review emphasizes the importance of ethnic databases such as CTGA in addressing the underrepresentation of Arab variant data in international databases and documenting population-specific discrepancies in variant interpretation, reiterating the value of such repositories for clinicians and researchers, especially when dealing with rare disorders.
Collapse
Affiliation(s)
- Sami Bizzari
- Centre for Arab Genomic Studies, Dubai, United Arab Emirates
| | - Pratibha Nair
- Centre for Arab Genomic Studies, Dubai, United Arab Emirates
| | - Sayeeda Hana
- Centre for Arab Genomic Studies, Dubai, United Arab Emirates
| | - Asha Deepthi
- Centre for Arab Genomic Studies, Dubai, United Arab Emirates
| | | | - Lihadh Al-Gazali
- Department of Pediatrics, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain, United Arab Emirates
| | | |
Collapse
|
5
|
Al-Mousa H, Barbouche MR. Genetics of Inborn Errors of Immunity in highly consanguineous Middle Eastern and North African populations. Semin Immunol 2023; 67:101763. [PMID: 37075586 DOI: 10.1016/j.smim.2023.101763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 04/21/2023]
Abstract
Consanguineous marriages in Middle Eastern and North African (MENA) countries are deeply-rooted tradition and highly prevalent resulting into increased prevalence of autosomal recessive diseases including Inborn Errors of Immunity (IEIs). Molecular genetic testing is an important diagnostic tool for IEIs since it provides a definite diagnosis, genotype-phenotype correlation, and guide therapy. In this review, we will discuss the current state and challenges of genomic and variome studies in MENA region populations, as well as the importance of funding advanced genome projects. In addition, we will review the MENA underlying molecular genetic defects of over 2457 patients published with the common IEIs, where autosomal recessive mode of inheritance accounts for 76% of cases with increased prevalence of combined immunodeficiency diseases (50%). The efforts made in the last three decades in terms of international collaboration and of in situ capacity building in MENA region countries led to the discovery of more than 150 novel genes involved in IEIs. Expanding sequencing studies within the MENA will undoubtedly be a unique asset for the IEI genetics which can advance research, and support precise genomic diagnostics and therapeutics.
Collapse
Affiliation(s)
- Hamoud Al-Mousa
- Section of Allergy and Immunology, Department of Pediatrics, King Faisal Specialist Hospital & Research Center, Riyadh, Saudi Arabia; College of Medicine, Alfaisal University, Riyadh, Saudi Arabia.
| | - Mohamed-Ridha Barbouche
- Department of Microbiology, Immunology and Infectious Diseases, College of Medicine and Medical Sciences, Arabian Gulf University, Manama, Bahrain.
| |
Collapse
|
6
|
Abdelmajeed O, Ali MMD, Erwa NH, Mustafa A, Ahmed YA, Ahmed RHA, Mohammed HHE, Hassan ME, Ahmed M, Algam S. Autosomal recessive IL12RB1 mutation: A case report of a Sudanese child and his father. Front Immunol 2023; 14:1135824. [PMID: 37063912 PMCID: PMC10102344 DOI: 10.3389/fimmu.2023.1135824] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2023] [Accepted: 03/13/2023] [Indexed: 04/03/2023] Open
Abstract
IntroductionMendelian susceptibility to mycobacterial disease (MSMD) is a rare inherited condition characterized by selective susceptibility to weakly virulent mycobacteria, such as substrains of the bacille Calmette–Guérin (BCG) vaccine and different environmental mycobacteria.Case presentationA 7-year-old Sudanese boy was referred to the immunology clinic with a suspected diagnosis of MSMD. This followed multiple presentations with disseminated tuberculosis and typhoid fever. Genetic testing surprisingly revealed pathogenic homozygous variants in IL12RB1 Exon 9, c.913A>T (p. Lys305*) in both the patient and his father, with a completely healthy asymptomatic carrier mother who is not blood related to the patient’s father.ConclusionIt is challenging to diagnose MSMD, especially in developing countries where health systems are poor and have limited resources. Family history and genetic tests may help in early MSMD treatment and avoiding disease complications.
Collapse
Affiliation(s)
- Omaima Abdelmajeed
- Department of Pediatrics, Omdurman Islamic University, Omdurman, Sudan
- *Correspondence: Omaima Abdelmajeed,
| | - Muna Mohammed Dawoud Ali
- Department of Pediatrics, Tropical and Infectious Diseases, College of Medicine, University of Science and Technology, Khartoum, Sudan
| | | | - Alamin Mustafa
- Faculty of Medicine, Al-Neelain University, Khartoum, Sudan
| | | | | | | | | | - Monzir Ahmed
- Faculty of Medicine, Omdurman Islamic University, Omdurman, Sudan
| | - Shima Algam
- Faculty of Medicine, Al-Neelain University, Khartoum, Sudan
| |
Collapse
|
7
|
Baris S, Abolhassani H, Massaad MJ, Al-Nesf M, Chavoshzadeh Z, Keles S, Reisli I, Tahiat A, Shendi HM, Elaziz DA, Belaid B, Al Dhaheri F, Haskologlu S, Dogu F, Ben-Mustapha I, Sobh A, Galal N, Meshaal S, Elhawary R, El-Marsafy A, Alroqi FJ, Al-Saud B, Al-Ahmad M, Al Farsi T, Al Sukaiti N, Al-Tamemi S, Mehawej C, Dbaibo G, ElGhazali G, Kilic SS, Genel F, Kiykim A, Musabak U, Artac H, Guner SN, Boukari R, Djidjik R, Kechout N, Cagdas D, El-Sayed ZA, Karakoc-Aydiner E, Alzyoud R, Barbouche MR, Adeli M, Wakim RH, Reda SM, Ikinciogullari A, Ozen A, Bousfiha A, Al-Mousa H, Rezaei N, Al-Herz W, Geha RS. The Middle East and North Africa Diagnosis and Management Guidelines for Inborn Errors of Immunity. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY. IN PRACTICE 2023; 11:158-180.e11. [PMID: 36265766 DOI: 10.1016/j.jaip.2022.10.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 09/07/2022] [Accepted: 10/03/2022] [Indexed: 11/09/2022]
Abstract
Human inborn errors of immunity (IEI) are a group of 485 distinct genetic disorders affecting children and adults. Signs and symptoms of IEI are heterogeneous, and accurate diagnosis can be challenging and depends on the available human expertise and laboratory resources. The Middle East and North Africa (MENA) region has an increased prevalence of IEI because of the high rate of consanguinity with a predominance of autosomal recessive disorders. This area also exhibits more severe disease phenotypes compared with other regions, probably due to the delay in diagnosis. The MENA-IEI registry network has designed protocols and guidelines for the diagnosis and treatment of IEI, taking into consideration the variable regional expertise and resources. These guidelines are primarily meant to improve the care of patients within the region, but can also be followed in other regions with similar patient populations.
Collapse
Affiliation(s)
- Safa Baris
- Faculty of Medicine, Division of Pediatric Allergy and Immunology, Marmara University, Istanbul, Turkey; The Isil Berat Barlan Center for Translational Medicine, Istanbul Jeffrey Modell Foundation Diagnostic Center for Primary Immune Deficiencies, Istanbul, Turkey.
| | - 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 Biosciences and Nutrition, Karolinska Institute, Karolinska University Hospital, Huddinge, Stockholm, Sweden
| | - Michel J Massaad
- Department of Experimental Pathology, Immunology, and Microbiology, Faculty of Medicine, American University of Beirut, Beirut, Lebanon; Department of Pediatrics and Adolescent Medicine, Faculty of Medicine, American University of Beirut Medical Center, Beirut, Lebanon; Center for Infectious Diseases Research (CIDR) and WHO Collaborating Center for Reference and Research on Bacterial Pathogens, American University of Beirut, Beirut, Lebanon
| | - Maryam Al-Nesf
- Allergy and Immunology Division, Department of Medicine, Hamad Medical Corporation, Doha, Qatar
| | - Zahra Chavoshzadeh
- Allergy and Clinical Immunology Department, Mofid Children Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Sevgi Keles
- Division of Pediatric Allergy and Immunology, Meram Faculty of Medicine, Necmettin Erbakan University, Konya, Turkey
| | - Ismail Reisli
- Division of Pediatric Allergy and Immunology, Meram Faculty of Medicine, Necmettin Erbakan University, Konya, Turkey
| | - Azzeddine Tahiat
- Laboratory of Immunology, Department of Medical Biology, University of Algiers, Rouiba Hospital, Algiers, Algeria
| | - Hiba Mohammad Shendi
- Division of Pediatric Allergy and Immunology, Tawam Hospital, Abu Dhabi, United Arab Emirates
| | - Dalia Abd Elaziz
- Department of Pediatrics, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Brahim Belaid
- Department of Medical Immunology, Beni Messous University Hospital Center, Faculty of Pharmacy, University of Algiers, Algiers, Algeria
| | - Fatima Al Dhaheri
- Department of Pediatrics, Pediatric Infectious Diseases, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Sule Haskologlu
- Department of Pediatric Immunology and Allergy, Ankara University School of Medicine, Ankara, Turkey
| | - Figen Dogu
- Department of Pediatric Immunology and Allergy, Ankara University School of Medicine, Ankara, Turkey
| | - Imen Ben-Mustapha
- Department of Immunology, Institut Pasteur de Tunis and University Tunis El Manar, Tunis, Tunisia
| | - Ali Sobh
- Department of Pediatrics, Mansoura University Children's Hospital, Faculty of Medicine, Mansoura University, Mansoura, Egypt
| | - Nermeen Galal
- Department of Pediatrics, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Safa Meshaal
- Clinical Pathology Department, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Rabab Elhawary
- Clinical Pathology Department, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Aisha El-Marsafy
- Department of Pediatrics, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Fayhan J Alroqi
- King Abdullah International Medical Research Center, King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
| | - Bandar Al-Saud
- Department of Pediatrics, Division of Allergy and Immunology, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia; College of Medicine, Alfaisal University, Riyadh, Saudi Arabia
| | - Mona Al-Ahmad
- Department of Microbiology, College of Medicine, Kuwait University, Kuwait
| | - Tariq Al Farsi
- Department of Pediatric Allergy and Clinical Immunology, The Royal Hospital, Muscat, Oman
| | - Nashat Al Sukaiti
- Department of Pediatric Allergy and Clinical Immunology, The Royal Hospital, Muscat, Oman
| | - Salem Al-Tamemi
- Department of Child Health, Sultan Qaboos University Hospital, Muscat, Oman
| | - Cybel Mehawej
- Department of Human Genetics, Gilbert and Rose-Marie Chagoury School of Medicine, Lebanese American University, Byblos, Lebanon
| | - Ghassan Dbaibo
- Department of Pediatrics and Adolescent Medicine, Faculty of Medicine, American University of Beirut Medical Center, Beirut, Lebanon; Center for Infectious Diseases Research (CIDR) and WHO Collaborating Center for Reference and Research on Bacterial Pathogens, American University of Beirut, Beirut, Lebanon
| | - Gehad ElGhazali
- Department of Immunology, Sheikh Khalifa Medical City-Union 71-Purehealth, Abu Dhabi, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Sara Sebnem Kilic
- Department of Pediatric Immunology and Rheumatology, Faculty of Medicine, Bursa Uludag University, Bursa, Turkey
| | - Ferah Genel
- Department of Pediatric Immunology and Allergy, University of Health Sciences Dr. Behcet Uz Children's Hospital, İzmir, Turkey
| | - Ayca Kiykim
- Division of Pediatric Allergy and Immunology, Cerrahpasa Faculty of Medicine, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Ugur Musabak
- Department of Internal Medicine, Division of Immunology and Allergy, Faculty of Medicine, Baskent University, Ankara, Turkey
| | - Hasibe Artac
- Division of Immunology and Allergy, Department of Pediatrics, Faculty of Medicine, Selcuk University, Konya, Turkey
| | - Sukru Nail Guner
- Division of Pediatric Allergy and Immunology, Meram Faculty of Medicine, Necmettin Erbakan University, Konya, Turkey
| | - Rachida Boukari
- Department of Pediatrics, Mustapha Pacha Faculty of Medicine, Algiers University, Algeria
| | - Reda Djidjik
- Department of Medical Immunology, Beni Messous University Hospital Center, Faculty of Pharmacy, University of Algiers, Algiers, Algeria
| | - Nadia Kechout
- Department of Immunology, Pasteur Institute of Algeria, Faculty of Medicine, Algiers, Algeria
| | - Deniz Cagdas
- Department of Pediatrics, Section of Pediatric Immunology, Ihsan Dogramaci Children's Hospital, Institute of Child Health, Hacettepe University Medical School, Ankara, Turkey
| | - Zeinab Awad El-Sayed
- Pediatric Allergy, Immunology and Rheumatology Unit, Department of Pediatrics, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Elif Karakoc-Aydiner
- Faculty of Medicine, Division of Pediatric Allergy and Immunology, Marmara University, Istanbul, Turkey; The Isil Berat Barlan Center for Translational Medicine, Istanbul Jeffrey Modell Foundation Diagnostic Center for Primary Immune Deficiencies, Istanbul, Turkey
| | - Raed Alzyoud
- Section of Immunology, Allergy and Rheumatology, Queen Rania Children Hospital, Amman, Jordan
| | - Mohamed Ridha Barbouche
- Department of Immunology, Institut Pasteur de Tunis and University Tunis El Manar, Tunis, Tunisia
| | - Mehdi Adeli
- Department of Immunology, Sidra Medicine, Ar-Rayyan, Qatar
| | - Rima Hanna Wakim
- Department of Pediatrics and Adolescent Medicine, Faculty of Medicine, American University of Beirut Medical Center, Beirut, Lebanon; Center for Infectious Diseases Research (CIDR) and WHO Collaborating Center for Reference and Research on Bacterial Pathogens, American University of Beirut, Beirut, Lebanon
| | - Shereen M Reda
- Pediatric Allergy, Immunology and Rheumatology Unit, Department of Pediatrics, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Aydan Ikinciogullari
- Department of Pediatric Immunology and Allergy, Ankara University School of Medicine, Ankara, Turkey
| | - Ahmet Ozen
- Faculty of Medicine, Division of Pediatric Allergy and Immunology, Marmara University, Istanbul, Turkey; The Isil Berat Barlan Center for Translational Medicine, Istanbul Jeffrey Modell Foundation Diagnostic Center for Primary Immune Deficiencies, Istanbul, Turkey
| | - Aziz Bousfiha
- Laboratory of Clinical Immunology, Inflammation and Allergy, Faculty of Medicine and Pharmacy of Casablanca, Department of pediatric infectious and immunological diseases, Ibn Rushd Children Hospital, King Hassan II University, Casablanca, Morocco
| | - Hamoud Al-Mousa
- Department of Pediatrics, Division of Allergy and Immunology, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia; College of Medicine, Alfaisal University, Riyadh, Saudi Arabia
| | - Nima Rezaei
- Research Center for Immunodeficiencies, Pediatrics Center of Excellence, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran; Network of Immunity in Infection, Malignancy and Autoimmunity (NIIMA), Universal Scientific Education and Research Network (USERN), Tehran, Iran
| | - Waleed Al-Herz
- Department of Pediatrics, Faculty of Medicine, Kuwait University, Safat, Kuwait City, Kuwait; Allergy and Clinical Immunology Unit, Pediatric Department, Al-Sabah Hospital, Kuwait City, Kuwait
| | - Raif S Geha
- Division of Immunology, Boston Children's Hospital and Harvard Medical School, Boston, Mass
| |
Collapse
|
8
|
Meshaal S, Ei Hawary R, Eldash A, Erfan A, Abd Elaziz D, Alkady R, Lotfy S, Galal N, Boutros J, Elmarsafy A. Flow cytometry optimizing the diagnostic approach in inborn errors of immunity: experience from Egypt. Allergy Asthma Clin Immunol 2022; 18:45. [PMID: 35655284 PMCID: PMC9164555 DOI: 10.1186/s13223-022-00688-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Accepted: 05/20/2022] [Indexed: 11/16/2022] Open
Abstract
Background Human inborn errors of immunity (IEI) are a group of inherited genetic disorders of the immune system. IEI Patients suffer from severe repeated infections, autoimmunity, lymphadenopathy and/or increased susceptibility to malignancies. IEI are due to absence, disproportion, or loss of function of immune cells; mostly inherited in autosomal recessive manner, hence are more common in countries with high rate of consanguinity. Definite diagnosis of IEI is achieved by genetic analysis, however it is not always available. Aim: to report on different IEI categories and impact of expanding the use of flow cytometry (FCM) in diagnosis, categorization and follow up of IEI patients in a highly consanguineous population. Methods Retrospective chart review on different IEI categories diagnosed at the primary immunodeficiency center in Cairo University Specialized Pediatric hospital from 2011 to 2021 based on expanding the use of FCM. Results 1510 IEI patients were diagnosed; 480 were diagnosed genetically with FMF, 11 with cystic fibrosis and 1019 patients were diagnosed with other IEI disorders. Phagocytic defects were the commonest (30%) followed by severe combined immunodeficiency (22%) and combined immunodeficiency (18.3%). FCM testing properly diagnosed and categorized 73% of the cases. Conclusion Using multi-color FCM to evaluate immune cells populations, subpopulations, functions, and intracellular proteins expression is proved a useful cost-effective method for screening, categorization and follow up of IEI patients. FCM can improve the diagnosis of IEI significantly when tests are properly targeted and well designed. This study presents a 10-year experience in diagnosis of IEI using FCM at a tertiary referral center in a setting of limited resources and yet high prevalence of IEI. Supplementary Information The online version contains supplementary material available at 10.1186/s13223-022-00688-w.
Collapse
Affiliation(s)
- Safa Meshaal
- Clinical and Chemical Pathology Department, Faculty of Medicine, Cairo University, Cairo, 11562, Egypt.
| | - Rabab Ei Hawary
- Clinical and Chemical Pathology Department, Faculty of Medicine, Cairo University, Cairo, 11562, Egypt
| | - Alia Eldash
- Clinical and Chemical Pathology Department, Faculty of Medicine, Cairo University, Cairo, 11562, Egypt
| | - Aya Erfan
- Clinical and Chemical Pathology Department, Faculty of Medicine, Cairo University, Cairo, 11562, Egypt
| | - Dalia Abd Elaziz
- Pediatric Department, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Radwa Alkady
- Pediatric Department, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Sohilla Lotfy
- Pediatric Department, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Nermeen Galal
- Pediatric Department, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Jeannette Boutros
- Pediatric Department, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Aisha Elmarsafy
- Pediatric Department, Faculty of Medicine, Cairo University, Cairo, Egypt
| |
Collapse
|
9
|
Belaid B, Lamara Mahammed L, Drali O, Oussaid AM, Touri NS, Melzi S, Dehimi A, Berkani LM, Merah F, Larab Z, Allam I, Khemici O, Kirane SY, Boutaba M, Belbouab R, Bekkakcha H, Guedouar A, Chelali A, Baamara B, Noui D, Baaziz H, Rezak R, Azzouz SM, Aichaoui M, Moktefi A, Benhatchi RM, Oussalah M, Benaissa N, Laredj A, Bouchetara A, Adria A, Habireche B, Tounsi N, Dahmoun F, Touati R, Boucenna H, Bouferoua F, Sekfali L, Bouhafs N, Aboura R, Kherra S, Inouri Y, Dib S, Medouri N, Khelfaoui N, Redjedal A, Zelaci A, Yahiaoui S, Medjadj S, Touhami TK, Kadi A, Amireche F, Frada I, Houasnia S, Benarab K, Boubidi C, Ferhani Y, Benalioua H, Sokhal S, Benamar N, Aggoune S, Hadji K, Bellouti A, Rahmoune H, Boutrid N, Okka K, Ammour A, Saadoune H, Amroun M, Belhadj H, Ghanem A, Abbaz H, Boudrioua S, Zebiche B, Ayad A, Hamadache Z, Ouaras N, Achour N, Bouchair N, Boudiaf H, Bekkat-Berkani D, Maouche H, Bouzrar Z, Aissat L, Ibsaine O, Bioud B, Kedji L, Dahlouk D, Bensmina M, Radoui A, Bessahraoui M, Bensaadi N, Mekki A, Zeroual Z, Chan KW, Leung D, Tebaibia A, Ayoub S, Mekideche D, Gharnaout M, Casanova JL, Puel A, Lau YL, Cherif N, Ladj S, Smati L, Boukari R, Benhalla N, Djidjik R. Inborn Errors of Immunity in Algerian Children and Adults: A Single-Center Experience Over a Period of 13 Years (2008–2021). Front Immunol 2022; 13:900091. [PMID: 35529857 PMCID: PMC9069527 DOI: 10.3389/fimmu.2022.900091] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2022] [Accepted: 03/25/2022] [Indexed: 12/11/2022] Open
Abstract
Background Inborn errors of immunity (IEI) predispose patients to various infectious and non-infectious complications. Thanks to the development and expanding use of flow cytometry and increased awareness, the diagnostic rate of IEI has markedly increased in Algeria the last decade. Aim This study aimed to describe a large cohort of Algerian patients with probable IEI and to determine their clinical characteristics and outcomes. Methods We collected and analyzed retrospectively the demographic data, clinical manifestations, immunologic, genetic data, and outcome of Algerian IEI patients - diagnosed in the department of medical immunology of Beni Messous university hospital center, Algiers, from 2008 to 2021. Results Eight hundred and seven patients with IEI (482 males and 325 females) were enrolled, 9.7% of whom were adults. Consanguinity was reported in 50.3% of the cases and a positive family history in 32.34%. The medium age at disease onset was 8 months and at diagnosis was 36 months. The median delay in diagnosis was 16 months. Combined immunodeficiencies were the most frequent (33.8%), followed by antibody deficiencies (24.5%) and well-defined syndromes with immunodeficiency (24%). Among 287 patients tested for genetic disorders, 129 patients carried pathogenic mutations; 102 having biallelic variants mostly in a homozygous state (autosomal recessive disorders). The highest mortality rate was observed in patients with combined immunodeficiency (70.1%), especially in patients with severe combined immunodeficiency (SCID), Omenn syndrome, or Major Histocompatibility Complex (MHC) class II deficiency. Conclusion The spectrum of IEI in Algeria is similar to that seen in most countries of the Middle East and North Africa (MENA) region, notably regarding the frequency of autosomal recessive and/or combined immunodeficiencies.
Collapse
Affiliation(s)
- Brahim Belaid
- Department of Medical Immunology, Beni Messous University Hospital Center, University of Algiers 1, Algiers, Algeria
| | - Lydia Lamara Mahammed
- Department of Medical Immunology, Beni Messous University Hospital Center, University of Algiers 1, Algiers, Algeria
| | - Ouardia Drali
- Department of Pediatrics B, Hussein Dey University Hospital Center, University of Algiers 1, Algiers, Algeria
| | - Aida Mohand Oussaid
- Department of Pediatrics A, Beni Messous University Hospital Center, University of Algiers 1, Algiers, Algeria
| | - Nabila Souad Touri
- Department of Pediatrics, Blida University Hospital Center, University of Blida, Blida, Algeria
| | - Souhila Melzi
- Department of Pediatrics, Bab El Oued University Hospital Center, University of Algiers 1, Algiers, Algeria
| | - Abdelhak Dehimi
- Department of Pediatrics, Setif University Hospital Center, University of Setif 1, Setif, Algeria
| | - Lylia Meriem Berkani
- Department of Medical Immunology, Beni Messous University Hospital Center, University of Algiers 1, Algiers, Algeria
| | - Fatma Merah
- Department of Medical Immunology, Beni Messous University Hospital Center, Algiers, Algeria
| | - Zineb Larab
- Department of Medical Immunology, Beni Messous University Hospital Center, Algiers, Algeria
| | - Ines Allam
- Department of Medical Immunology, Beni Messous University Hospital Center, University of Algiers 1, Algiers, Algeria
| | - Ouarda Khemici
- Department of Pediatrics B, Beni Messous University Hospital Center, Algiers, Algeria
| | - Sonya Yasmine Kirane
- Department of Pediatrics B, Beni Messous University Hospital Center, University of Algiers 1, Algiers, Algeria
| | - Mounia Boutaba
- Department of Pediatrics A, Hussein Dey University Hospital Center, University of Algiers 1, Algiers, Algeria
| | - Reda Belbouab
- Department of Pediatrics, Mustapha Pacha University Hospital Center, University of Algiers 1, Algiers, Algeria
| | - Hadjira Bekkakcha
- Department of Pediatrics A, Hussein Dey University Hospital Center, University of Algiers 1, Algiers, Algeria
| | - Assia Guedouar
- Department of Pediatrics A, Hussein Dey University Hospital Center, University of Algiers 1, Algiers, Algeria
| | - Abdelhakim Chelali
- Department of Pediatrics, Djelfa Public Hospital Institution, Djelfa, Algeria
| | - Brahim Baamara
- Department of Pediatrics, Djelfa Public Hospital Institution, Djelfa, Algeria
| | - Djamila Noui
- Department of Pediatrics, Batna University Hospital center, University of Batna, Batna, Algeria
| | - Hadda Baaziz
- Department of Pediatrics, Batna University Hospital center, University of Batna, Batna, Algeria
| | - Radia Rezak
- Department of Pediatric Gastroenterology and Nutrition, Canastel Children’s Hospital, Oran, Algeria
| | - Sidi Mohamed Azzouz
- Department of Pediatric Gastroenterology and Nutrition, Canastel Children’s Hospital, University of Oran, Oran, Algeria
| | - Malika Aichaoui
- Department of Pediatric Pneumo-Allergology, Canastel Children’s Hospital, Oran, Algeria
| | - Assia Moktefi
- Department of Pediatric Pneumo-Allergology, Canastel Children’s Hospital, Oran, Algeria
| | | | - Meriem Oussalah
- Department of Pediatric Pneumo-Allergology, Canastel Children’s Hospital, University of Oran, Oran, Algeria
| | - Naila Benaissa
- Department of Children’s Infectious Diseases, Canastel Children’s Hospital, University of Oran, Oran, Algeria
| | - Amel Laredj
- Department of Children’s Infectious Diseases, Canastel Children’s Hospital, University of Oran, Oran, Algeria
| | - Assia Bouchetara
- Department of Children’s Infectious Diseases, Canastel Children’s Hospital, University of Oran, Oran, Algeria
| | - Abdelkader Adria
- Department of Pediatric Hematology, Canastel Children’s Hospital, Oran, Algeria
| | - Brahim Habireche
- Department of Pediatrics, El Bayadh Public Hospital Institution, EL Bayadh, Algeria
| | - Noureddine Tounsi
- Department of Pediatrics, El Bayadh Public Hospital Institution, EL Bayadh, Algeria
| | - Fella Dahmoun
- Department of Pediatrics, Bejaia University Hospital Center, University of Bejaia, Bejaia, Algeria
| | - Rabah Touati
- Department of Pediatrics, Bejaia University Hospital Center, University of Bejaia, Bejaia, Algeria
| | - Hamza Boucenna
- Department of Pediatrics A, Beni Messous University Hospital Center, University of Algiers 1, Algiers, Algeria
| | - Fadila Bouferoua
- Department of Pediatrics A, Beni Messous University Hospital Center, University of Algiers 1, Algiers, Algeria
| | - Lynda Sekfali
- Department of Pediatrics A, Beni Messous University Hospital Center, University of Algiers 1, Algiers, Algeria
| | - Nadjet Bouhafs
- Department of Pediatrics, Bab El Oued University Hospital Center, University of Algiers 1, Algiers, Algeria
| | - Rawda Aboura
- Department of Pediatrics, Bab El Oued University Hospital Center, University of Algiers 1, Algiers, Algeria
| | - Sakina Kherra
- Department of Pediatrics A, Hussein Dey University Hospital Center, University of Algiers 1, Algiers, Algeria
| | - Yacine Inouri
- Department of Pediatrics, Central Hospital of the Army, University of Algiers 1, Algiers, Algeria
| | - Saadeddine Dib
- Department of Pediatrics, Mother & Child Hospital of Tlemcen, University of Tlemcen, Tlemcen, Algeria
| | - Nawel Medouri
- Department of Pediatrics, Saida Public Hospital Institution, Saida, Algeria
| | | | - Aicha Redjedal
- Department of Pediatrics, Saida Public Hospital Institution, Saida, Algeria
| | - Amara Zelaci
- Department of Pediatrics, El Oued Public Hospital Institution, El Oued, Algeria
| | - Samah Yahiaoui
- Department of Pediatrics, Barika Public Hospital Institution, Batna, Algeria
| | - Sihem Medjadj
- Department of Pediatrics, Ghardaia Public Hospital Institution, Ghardaia, Algeria
| | | | - Ahmed Kadi
- Department of Pneumology A, Beni Messous University Hospital Center, University of Algiers 1, Algiers, Algeria
| | - Fouzia Amireche
- Department of Pediatrics, Mother & Child Hospital of EL Mansourah, University of Constantine 3, Constantine, Algeria
| | - Imane Frada
- Department of Pediatrics, Biskra Public Hospital Institution, Biskra, Algeria
| | - Shahrazed Houasnia
- Department of Pediatrics, El Harrouche Public Hospital Institution, Skikda, Algeria
| | - Karima Benarab
- Department of Pediatrics, Tizi Ouzou University Hospital Center, University of Tizi Ouzou, Tizi Ouzou, Algeria
| | - Chahynez Boubidi
- Department of Pediatrics A, Hussein Dey University Hospital Center, University of Algiers 1, Algiers, Algeria
| | - Yacine Ferhani
- Department of Pediatrics, Mustapha Pacha University Hospital Center, University of Algiers 1, Algiers, Algeria
| | - Hayet Benalioua
- Department of Pediatrics, Mustapha Pacha University Hospital Center, University of Algiers 1, Algiers, Algeria
| | - Samia Sokhal
- Department of Pediatrics, Mustapha Pacha University Hospital Center, University of Algiers 1, Algiers, Algeria
| | - Nadia Benamar
- Department of Pediatrics, Tighennif Public Hospital Institution, Mascara, Algeria
| | - Samira Aggoune
- Department of Pediatrics, El-Harrach Public Hospital Institution, University of Algiers 1, Algiers, Algeria
| | - Karima Hadji
- Department of Pediatrics, Ain Oulmene Public Hospital Institution, Setif, Algeria
| | - Asma Bellouti
- Department of Pediatrics, Ain Azel Public Hospital Institution, Setif, Algeria
| | - Hakim Rahmoune
- Department of Pediatrics, Setif University Hospital Center, University of Setif 1, Setif, Algeria
| | - Nada Boutrid
- Department of Pediatrics, Setif University Hospital Center, University of Setif 1, Setif, Algeria
| | - kamelia Okka
- Department of Pediatrics, Setif University Hospital Center, University of Setif 1, Setif, Algeria
| | - Assia Ammour
- Department of Pediatrics, Mother & Child Hospital of Touggourt, Touggourt, Algeria
| | - Houssem Saadoune
- Department of Pneumology, Mila Public Hospital Institution, Mila, Algeria
| | - Malika Amroun
- Department of Pediatrics, Central Hospital of the Army, University of Algiers 1, Algiers, Algeria
| | - Hayet Belhadj
- Department of Pediatrics, Central Hospital of the Army, University of Algiers 1, Algiers, Algeria
| | - Amina Ghanem
- Department of Pediatrics, Khenchela Public Hospital Institution, Khenchela, Algeria
| | - Hanane Abbaz
- Department of Pediatrics, Khenchela Public Hospital Institution, Khenchela, Algeria
| | - Sana Boudrioua
- Department of Pediatrics, El Khroub Public Hospital Institution, Constantine, Algeria
| | - Besma Zebiche
- Department of Pediatrics, Kolea Public Hospital Institution, Tipaza, Algeria
| | - Assia Ayad
- Department of Pediatrics, Kolea Public Hospital Institution, Tipaza, Algeria
| | - Zahra Hamadache
- Department of Pediatrics, Kolea Public Hospital Institution, Tipaza, Algeria
| | - Nassima Ouaras
- Department of Infectious Diseases, EL Kettar Specialized Hospital, University of Algiers 1, Algiers, Algeria
| | - Nassima Achour
- Department of Infectious Diseases, EL Kettar Specialized Hospital, University of Algiers 1, Algiers, Algeria
| | - Nadira Bouchair
- Department of Pediatrics, Annaba University Hospital Center, University of Annaba, Annaba, Algeria
| | - Houda Boudiaf
- Department of Pediatric Oncology, Mustapha pacha University Hospital Center, University of Algiers 1, Algiers, Algeria
| | - Dahila Bekkat-Berkani
- Department of Pediatrics, Bologhine Public Hospital Institution, University of Algiers 1, Algiers, Algeria
| | - Hachemi Maouche
- Department of Pediatrics, El-Harrach Public Hospital Institution, University of Algiers 1, Algiers, Algeria
| | - Zahir Bouzrar
- Department of Pediatrics, Bab El Oued University Hospital Center, University of Algiers 1, Algiers, Algeria
| | - Lynda Aissat
- Department of Pediatrics, Mother & Child Hospital of Tipaza, University of Blida, Algiers, Algeria
| | - Ouardia Ibsaine
- Department of Pediatrics, Ain Taya Public Hospital Institution, University of Algiers 1, Algiers, Algeria
| | - Belkacem Bioud
- Department of Pediatrics, Setif University Hospital Center, University of Setif 1, Setif, Algeria
| | - Leila Kedji
- Department of Pediatrics, Blida University Hospital Center, University of Blida, Blida, Algeria
| | - Djazia Dahlouk
- Department of Pediatrics, Central Hospital of the Army, University of Algiers 1, Algiers, Algeria
| | - Manoubia Bensmina
- Department of Pediatrics B, Douera University Hospital Center, University of Blida, Algiers, Algeria
| | - Abdelkarim Radoui
- Department of Pediatric Pneumo-Allergology, Canastel Children’s Hospital, University of Oran, Oran, Algeria
| | - Mimouna Bessahraoui
- Department of Pediatric Gastroenterology and Nutrition, Canastel Children’s Hospital, University of Oran, Oran, Algeria
| | - Nadia Bensaadi
- Department of Pediatrics, Tizi Ouzou University Hospital Center, University of Tizi Ouzou, Tizi Ouzou, Algeria
| | - Azzeddine Mekki
- Department of Pediatrics B, Hussein Dey University Hospital Center, University of Algiers 1, Algiers, Algeria
| | - Zoulikha Zeroual
- Department of Pediatrics A, Hussein Dey University Hospital Center, University of Algiers 1, Algiers, Algeria
| | - Koon-Wing Chan
- Department of Pediatrics and Adolescent Medicine, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, Hong Kong SAR, China
| | - Daniel Leung
- Department of Pediatrics and Adolescent Medicine, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, Hong Kong SAR, China
| | - Amar Tebaibia
- Department of Internal Medicine, El Biar Public Hospital Institution, University of Algiers 1, Algiers, Algeria
| | - Soraya Ayoub
- Department of Internal Medicine, Beni Messous University Hospital Center, University of Algiers 1, Algiers, Algeria
| | - Dalila Mekideche
- Department of Pneumology B, Beni Messous University Hospital Center, University of Algiers 1, Algiers, Algeria
| | - Merzak Gharnaout
- Department of Pneumology A, Beni Messous University Hospital Center, University of Algiers 1, Algiers, Algeria
| | - Jean Laurent Casanova
- Laboratory of Human Genetics of Infectious Diseases, Necker Hospital for Sick Children, INSERM UMR 1163, Paris, France
- Imagine Institute, University of Paris, Paris, France
- St Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller University, New York, NY, United States
- Howard Hughes Medical Institute, New York, NY, United States
| | - Anne Puel
- Laboratory of Human Genetics of Infectious Diseases, Necker Hospital for Sick Children, INSERM UMR 1163, Paris, France
- Imagine Institute, University of Paris, Paris, France
- St Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller University, New York, NY, United States
| | - Yu Lung Lau
- Department of Pediatrics and Adolescent Medicine, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, Hong Kong SAR, China
| | - Nacira Cherif
- Department of Pediatrics B, Beni Messous University Hospital Center, University of Algiers 1, Algiers, Algeria
| | - Samir Ladj
- Department of Pediatrics, El Biar Public Hospital Institution, University of Algiers 1, Algiers, Algeria
| | - Leila Smati
- Department of Pediatrics, Bologhine Public Hospital Institution, University of Algiers 1, Algiers, Algeria
| | - Rachida Boukari
- Department of Pediatrics, Mustapha Pacha University Hospital Center, University of Algiers 1, Algiers, Algeria
| | - Nafissa Benhalla
- Department of Pediatrics A, Beni Messous University Hospital Center, University of Algiers 1, Algiers, Algeria
| | - Reda Djidjik
- Department of Medical Immunology, Beni Messous University Hospital Center, University of Algiers 1, Algiers, Algeria
- *Correspondence: Reda Djidjik,
| |
Collapse
|
10
|
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.
Collapse
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
| |
Collapse
|
11
|
Primary Immunodeficiencies in India: Molecular Diagnosis and the Role of Next-Generation Sequencing. J Clin Immunol 2020; 41:393-413. [PMID: 33225392 DOI: 10.1007/s10875-020-00923-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Accepted: 11/13/2020] [Indexed: 10/22/2022]
Abstract
Primary immunodeficiency diseases (PIDs) are a group of clinically and genetically heterogeneous disorders showing ethnic and geographic diversities. Next-generation sequencing (NGS) is a comprehensive tool to diagnose PID. Although PID is common in India, data on the genetic spectrum of PIDs are limited due to financial restrictions. The study aims to characterize the clinical and genetic spectrum of PID patients in India and highlight the importance of a cost-effective targeted gene panel sequencing approach for PID in a resource-limited setting. The study includes 229 patients with clinical and laboratory features suggestive of PIDs. Mutation analysis was done by Sanger sequencing and NGS targeting a customized panel of genes. Pathogenic variants were identified in 97 patients involving 42 different genes with BTK and IL12RB1 being the most common mutated genes. Autosomal recessive and X-linked recessive inheritance were seen in 51.6% and 23.7% of patients. Mendelian susceptibility to mycobacterial diseases (MSMD) and IL12RB1 mutations was more common in our population compared to the Western world and the Middle East. Two patients with hypomorphic RAG1 mutations and one female with skewed CYBB mutation were also identified. Another 40 patients had variants classified as variants of uncertain significance (VUS). The study shows that targeted NGS is an effective diagnostic strategy for PIDs in countries with limited diagnostic resources. Molecular diagnosis of PID helps in genetic counseling and to make therapeutic decisions including the need for a stem cell transplantation.
Collapse
|
12
|
Kechout N, Touri N, Saidani K, Dehimi A, Ladj S, Ferhani Y, Sedfi S, Benmesbah N, Abdellaoui N, Hadji H, Okka K, Kedji L, Boukari R, Attal N. Leukocyte adhesion deficiency type1 in Algeria. Meta Gene 2020. [DOI: 10.1016/j.mgene.2020.100746] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
|
13
|
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]
|
14
|
Ben-Ali M, Kechout N, Mekki N, Yang J, Chan KW, Barakat A, Aadam Z, Gamara J, Gargouri L, Largueche B, BelHadj-Hmida N, Nedri A, Ameur HB, Mellouli F, Boukari R, Bejaoui M, Bousfiha A, Ben-Mustapha I, Lau YL, Barbouche MR. Genetic Approaches for Definitive Diagnosis of Agammaglobulinemia in Consanguineous Families. J Clin Immunol 2019; 40:96-104. [PMID: 31696364 DOI: 10.1007/s10875-019-00706-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Accepted: 10/09/2019] [Indexed: 11/30/2022]
Abstract
Autosomal recessive agammaglobulinemia (ARA) is a primary immunodeficiency characterized by absent peripheral B cells, severe hypogammaglobulinemia, and absent BTK gene mutations. In ARA, mutations occur in genes encoding the pre-B cell receptor (pre-BCR) or downstream signaling proteins. In this work, we used candidate gene and whole-exome sequencing to investigate the molecular basis of ARA in 6 patients from 4 consanguineous North-African families. Sanger sequencing of candidate genes encoding the pre-BCR components (ΙGΗΜ, CD79A, CD79B, IGLL1, and VPREB1) was initially performed and determined the genetic defect in five patients. Two novel mutations in IGHM (p.Val378Alafs*1 and p.Ile184Serfs*21) were identified in three patients from two unrelated kindred and a novel nonsense mutation was identified in CD79A (p.Trp66*) in two siblings from a third kindred. Whole-exome sequencing (WES) was performed on the sixth patient who harbored a homozygous stop mutation at position 407 in the RAG2 gene (p.Glu407*). We concluded that conventional gene sequencing, especially when multiple genes are involved in the defect as is the case in ARA, is costly and time-consuming, resulting in delayed diagnosis that contributes to increased morbidity and mortality. In addition, it fails to identify the involvement of novel and unsuspected gene defects when the phenotype of the patients is atypical. WES has the potential to provide a rapid and more accurate genetic diagnosis in ARA, which is crucial for the treatment of the patients.
Collapse
Affiliation(s)
- Meriem Ben-Ali
- Laboratory of Transmission, Control and Immunobiology of Infections, LR11IPT02 (LTCII), Institut Pasteur de Tunis, 13, place Pasteur, BP74, 1002, Tunis-Belvédère, Tunisia.,Université Tunis El Manar, 1068, Tunis, Tunisia
| | - Nadia Kechout
- Department of Immunology, Institut Pasteur d'Algérie, Algiers, Algeria.,Faculty of Medicine of Algiers, Algiers, Algeria
| | - Najla Mekki
- Laboratory of Transmission, Control and Immunobiology of Infections, LR11IPT02 (LTCII), Institut Pasteur de Tunis, 13, place Pasteur, BP74, 1002, Tunis-Belvédère, Tunisia.,Université Tunis El Manar, 1068, Tunis, Tunisia
| | - Jing Yang
- Department of Paediatrics and Adolescent Medicine, The University of Hong Kong, Hong Kong, China
| | - Koon Wing Chan
- Department of Paediatrics and Adolescent Medicine, The University of Hong Kong, Hong Kong, China
| | - Abdelhamid Barakat
- Laboratory of Molecular and Human Genetics, Department of Scientific Research, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Zahra Aadam
- Laboratory of Molecular and Human Genetics, Department of Scientific Research, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Jouda Gamara
- Laboratory of Transmission, Control and Immunobiology of Infections, LR11IPT02 (LTCII), Institut Pasteur de Tunis, 13, place Pasteur, BP74, 1002, Tunis-Belvédère, Tunisia.,Université Tunis El Manar, 1068, Tunis, Tunisia
| | - Lamia Gargouri
- Department of Paediatrics, Habib Bourguiba Hospital, Sfax, Tunisia
| | - Beya Largueche
- Laboratory of Transmission, Control and Immunobiology of Infections, LR11IPT02 (LTCII), Institut Pasteur de Tunis, 13, place Pasteur, BP74, 1002, Tunis-Belvédère, Tunisia.,Université Tunis El Manar, 1068, Tunis, Tunisia
| | - Nabil BelHadj-Hmida
- Laboratory of Transmission, Control and Immunobiology of Infections, LR11IPT02 (LTCII), Institut Pasteur de Tunis, 13, place Pasteur, BP74, 1002, Tunis-Belvédère, Tunisia.,Université Tunis El Manar, 1068, Tunis, Tunisia
| | - Amel Nedri
- Department of Paediatrics, Medenine Hospital, Medenine, Tunisia
| | | | - Fethi Mellouli
- National Bone Marrow Transplantation Center, Jebel Lakhdar, Tunis, Tunisia
| | - Rachida Boukari
- Department of Pediatrics, CHU Mustapha-Bacha, Faculty of Medicine of Algiers, Algiers, Algeria
| | - Mohamed Bejaoui
- National Bone Marrow Transplantation Center, Jebel Lakhdar, Tunis, Tunisia
| | - Aziz Bousfiha
- Clinical Immunology Unit, Department of Pediatrics, Centre Hospitalier Universitaire Ibn Rochd, King Hassan II University, Casablanca, Morocco
| | - Imen Ben-Mustapha
- Laboratory of Transmission, Control and Immunobiology of Infections, LR11IPT02 (LTCII), Institut Pasteur de Tunis, 13, place Pasteur, BP74, 1002, Tunis-Belvédère, Tunisia.,Université Tunis El Manar, 1068, Tunis, Tunisia
| | - Yu-Lung Lau
- Department of Paediatrics and Adolescent Medicine, The University of Hong Kong, Hong Kong, China
| | - Mohamed-Ridha Barbouche
- Laboratory of Transmission, Control and Immunobiology of Infections, LR11IPT02 (LTCII), Institut Pasteur de Tunis, 13, place Pasteur, BP74, 1002, Tunis-Belvédère, Tunisia. .,Université Tunis El Manar, 1068, Tunis, Tunisia.
| |
Collapse
|
15
|
Romdhane L, Mezzi N, Hamdi Y, El-Kamah G, Barakat A, Abdelhak S. Consanguinity and Inbreeding in Health and Disease in North African Populations. Annu Rev Genomics Hum Genet 2019; 20:155-179. [PMID: 31039041 DOI: 10.1146/annurev-genom-083118-014954] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
North Africa is defined as the geographical region separated from the rest of the continent by the Sahara and from Europe by the Mediterranean Sea. The main demographic features of North African populations are their familial structure and high rates of familial and geographic endogamy, which have a proven impact on health, particularly the occurrence of genetic diseases, with a greater effect on the frequency and spectrum of the rarest forms of autosomal recessive genetic diseases. More than 500 different genetic diseases have been reported in this region, most of which are autosomal recessive. During the last few decades, there has been great interest in the molecular investigation of large consanguineous North African families. The development of local capacities has brought a substantial improvement in the molecular characterization of these diseases, but the genetic bases of half of them remain unknown. Diseases of known molecular etiology are characterized by their genetic and mutational heterogeneity, although some founder mutations are encountered relatively frequently. Some founder mutations are specific to a single country or a specific ethnic or geographic group, and others are shared by all North African countries or worldwide. The impact of consanguinity on common multifactorial diseases is less evident.
Collapse
Affiliation(s)
- Lilia Romdhane
- Laboratory of Biomedical Genomics and Oncogenetics, Institut Pasteur de Tunis, 1002 Tunis Belvédère, Tunisia; .,Department of Biology, Faculty of Sciences of Bizerte, Université Tunis Carthage, 7021 Jarzouna, Tunisia
| | - Nessrine Mezzi
- Laboratory of Biomedical Genomics and Oncogenetics, Institut Pasteur de Tunis, 1002 Tunis Belvédère, Tunisia;
| | - Yosr Hamdi
- Laboratory of Biomedical Genomics and Oncogenetics, Institut Pasteur de Tunis, 1002 Tunis Belvédère, Tunisia;
| | - Ghada El-Kamah
- Department of Clinical Genetics, Human Genetics and Genome Research Division, National Research Centre, Cairo 12622, Egypt
| | - Abdelhamid Barakat
- Laboratoire de Génétique Humaine et Biologie Moléculaire, Département de Recherche Scientifique, Institut Pasteur du Maroc, 20100 Casablanca, Morocco
| | - Sonia Abdelhak
- Laboratory of Biomedical Genomics and Oncogenetics, Institut Pasteur de Tunis, 1002 Tunis Belvédère, Tunisia;
| |
Collapse
|
16
|
Al-Herz W, Chou J, Delmonte OM, Massaad MJ, Bainter W, Castagnoli R, Klein C, Bryceson YT, Geha RS, Notarangelo LD. Comprehensive Genetic Results for Primary Immunodeficiency Disorders in a Highly Consanguineous Population. Front Immunol 2019; 9:3146. [PMID: 30697212 PMCID: PMC6340972 DOI: 10.3389/fimmu.2018.03146] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Accepted: 12/20/2018] [Indexed: 01/31/2023] Open
Abstract
Objective: To present the genetic causes of patients with primary immune deficiencies (PIDs) in Kuwait between 2004 and 2017. Methods: The data was obtained from the Kuwait National Primary Immunodeficiency Disorders Registry. Genomic DNA from patients with clinical and immunological features of PID was sequenced using Sanger sequencing (SS), next generation sequencing (NGS) of targeted genes, whole exome sequencing (WES), and/or whole genome sequencing (WGS). Functional assays were utilized to assess the biologic effect of identified variants. Fluorescence in situ hybridization (FISH) for 22q11.2 deletion and genomic hybridizations arrays were performed when thymic defects were suspected. Results: A total of 264 patients were registered during the study period with predominance of patients with immunodeficiencies affecting cellular and humoral immunity (35.2%), followed by combined immunodeficiencies with associated syndromic features (24%). Parental consanguinity and family history suggestive of PID were reported in 213 (81%) and 145 patients (55%), respectively. Genetic testing of 206 patients resulted in a diagnostic yield of 70%. Mutations were identified in 46 different genes and more than 90% of the reported genetic defects were transmitted by in an autosomal recessive pattern. The majority of the mutations were missense mutations (57%) followed by deletions and frame shift mutations. Five novel disease-causing genes were discovered. Conclusions: Genetic testing should be an integral part in the management of primary immunodeficiency patients. This will help the delivery of precision medicine and facilitate proper genetic counseling. Studying inbred populations using sophisticated diagnostic methods can allow better understanding of the genetics of primary immunodeficiency disorders.
Collapse
Affiliation(s)
- Waleed Al-Herz
- Department of Pediatrics, Faculty of Medicine, Kuwait University, Kuwait City, Kuwait.,Allergy and Clinical Immunology Unit, Pediatric Department, Al-Sabah Hospital, Kuwait City, Kuwait
| | - Janet Chou
- Division of Immunology, Department of Pediatrics, Children's Hospital, Harvard Medical School, Boston, MA, United States
| | - Ottavia Maria Delmonte
- Laboratory of Clinical Immunology and Microbiology, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, United States
| | - Michel J Massaad
- Department of Experimental Pathology, Immunology, and Microbiology, Pediatrics and Adolescent Medicine, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | - Wayne Bainter
- Division of Immunology, Department of Pediatrics, Children's Hospital, Harvard Medical School, Boston, MA, United States
| | - Riccardo Castagnoli
- Laboratory of Clinical Immunology and Microbiology, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, United States.,Department of Pediatrics, University of Pavia, Foundation IRCCS Policlinico San Matteo, Pavia, Italy
| | - Christoph Klein
- Department of Pediatrics, Dr. von Hauner Children's Hospital, University Hospital, LMU, Munich, Germany
| | - Yenan T Bryceson
- Department of Medicine, Centre for Hematology and Regenerative Medicine, Karolinska Institutet, Karolinska University Hospital Huddinge, Stockholm, Sweden
| | - Raif S Geha
- Division of Immunology, Department of Pediatrics, Children's Hospital, Harvard Medical School, Boston, MA, United States
| | - Luigi D Notarangelo
- Laboratory of Clinical Immunology and Microbiology, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, United States
| |
Collapse
|
17
|
Recke A, Konitzer S, Lemcke S, Freitag M, Sommer NM, Abdelhady M, Amoli MM, Benoit S, El-Chennawy F, Eldarouti M, Eming R, Gläser R, Günther C, Hadaschik E, Homey B, Lieb W, Peitsch WK, Pföhler C, Robati RM, Saeedi M, Sárdy M, Sticherling M, Uzun S, Worm M, Zillikens D, Ibrahim S, Vidarsson G, Schmidt E. The p.Arg435His Variation of IgG3 With High Affinity to FcRn Is Associated With Susceptibility for Pemphigus Vulgaris-Analysis of Four Different Ethnic Cohorts. Front Immunol 2018; 9:1788. [PMID: 30116249 PMCID: PMC6082936 DOI: 10.3389/fimmu.2018.01788] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Accepted: 07/19/2018] [Indexed: 01/15/2023] Open
Abstract
IgG3 is the IgG subclass with the strongest effector functions among all four IgG subclasses and the highest degree of allelic variability among all constant immunoglobulin genes. Due to its genetic position, IgG3 is often the first isotype an antibody switches to before IgG1 or IgG4. Compared with the other IgG subclasses, it has a reduced half-life which is probably connected to a decreased affinity to the neonatal Fc receptor (FcRn). However, a few allelic variants harbor an amino acid replacement of His435 to Arg that reverts the half-life of the resulting IgG3 to the same level as the other IgG subclasses. Because of its functional impact, we hypothesized that the p.Arg435His variation could be associated with susceptibility to autoantibody-mediated diseases like pemphigus vulgaris (PV) and bullous pemphigoid (BP). Using a set of samples from German, Turkish, Egyptian, and Iranian patients and controls, we were able to demonstrate a genetic association of the p.Arg435His variation with PV risk, but not with BP risk. Our results suggest a hitherto unknown role for the function of IgG3 in the pathogenesis of PV.
Collapse
Affiliation(s)
- Andreas Recke
- Lübeck Institute of Experimental Dermatology (LIED), University of Lübeck, Lübeck, Germany.,Department of Dermatology, Allergology and Venereology, University of Lübeck, Lübeck, Germany
| | - Sarah Konitzer
- Lübeck Institute of Experimental Dermatology (LIED), University of Lübeck, Lübeck, Germany
| | - Susanne Lemcke
- Lübeck Institute of Experimental Dermatology (LIED), University of Lübeck, Lübeck, Germany
| | - Miriam Freitag
- Lübeck Institute of Experimental Dermatology (LIED), University of Lübeck, Lübeck, Germany
| | - Nele Maxi Sommer
- Lübeck Institute of Experimental Dermatology (LIED), University of Lübeck, Lübeck, Germany
| | - Mohammad Abdelhady
- Department of Dermatology, Faculty of Medicine, Cairo University, Giza, Egypt
| | - Mahsa M Amoli
- Metabolic Disorders Research Center, Endocrinology and Metabolism Molecular - Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Sandrine Benoit
- Department of Dermatology, Venereology and Allergology, University Hospital Würzburg, Würzburg, Germany
| | - Farha El-Chennawy
- Department of Clinical Pathology, Mansoura Faculty of Medicine, Mansoura University, Mansoura, Egypt
| | - Mohammad Eldarouti
- Department of Dermatology, Faculty of Medicine, Cairo University, Giza, Egypt
| | - Rüdiger Eming
- Department of Dermatology and Allergology, Phillips-Universität Marburg, Marburg, Germany
| | - Regine Gläser
- Department of Dermatology, Venereology and Allergology, Christian Albrecht University, Kiel, Germany
| | - Claudia Günther
- Department of Dermatology, University Hospital of Dresden, Dresden, Germany
| | - Eva Hadaschik
- Department of Dermatology, Ruprecht-Karls-University of Heidelberg, Heidelberg, Germany
| | - Bernhard Homey
- Department of Dermatology, Heinrich Heine University, Düsseldorf, Germany
| | - Wolfgang Lieb
- Institute of Epidemiology, Christian-Albrechts-University, Kiel, Germany.,Popgen Biobank, Christian-Albrechts-University, Kiel, Germany
| | - Wiebke K Peitsch
- Department of Dermatology, University Medical Center Mannheim, Heidelberg University, Mannheim, Germany.,Department of Dermatology, Vivantes Klinikum im Friedrichshain, Berlin, Germany
| | - Claudia Pföhler
- Department of Dermatology, Saarland University Medical School, Homburg/Saar, Germany
| | - Reza M Robati
- Skin Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Marjan Saeedi
- Skin Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Miklós Sárdy
- Department of Dermatology, Ludwig Maximilian University Munich, Munich, Germany
| | - Michael Sticherling
- Department of Dermatology, University of Erlangen-Nuremberg, Erlangen, Germany
| | - Soner Uzun
- Department of Dermatology, Faculty of Medicine, Akdeniz University, Antalya, Turkey
| | - Margitta Worm
- Department of Dermatology, Venerology and Allergology, Allergy Center Charité, Charité-Medical University Berlin, Berlin, Germany
| | - Detlef Zillikens
- Department of Dermatology, Allergology and Venereology, University of Lübeck, Lübeck, Germany
| | - Saleh Ibrahim
- Lübeck Institute of Experimental Dermatology (LIED), University of Lübeck, Lübeck, Germany
| | - Gestur Vidarsson
- Department of Experimental Hematology, Sanquin Research Institute, Amsterdam, Netherlands
| | - Enno Schmidt
- Lübeck Institute of Experimental Dermatology (LIED), University of Lübeck, Lübeck, Germany
| | | |
Collapse
|
18
|
Ben-Mustapha I, Agrebi N, Barbouche MR. Novel insights into FAS defects underlying autoimmune lymphoproliferative syndrome revealed by studies in consanguineous patients. J Leukoc Biol 2017; 103:501-508. [PMID: 29345341 DOI: 10.1002/jlb.5mr0817-332r] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2017] [Revised: 09/27/2017] [Accepted: 10/10/2017] [Indexed: 11/08/2022] Open
Abstract
Autoimmune lymphoproliferative syndrome (ALPS) is a primary immunodeficiency disease due to impaired Fas-Fas ligand apoptotic pathway. It is characterized by chronic nonmalignant, noninfectious lymphadenopathy and/or splenomegaly associated with autoimmune manifestations primarily directed against blood cells. Herein, we review the heterogeneous ALPS molecular bases and discuss recent findings revealed by the study of consanguineous patients. Indeed, this peculiar genetic background favored the identification of a novel form of AR ALPS-FAS associated with normal or residual protein expression, expanding the spectrum of ALPS types. In addition, rare mutational mechanisms underlying the splicing defects of FAS exon 6 have been identified in AR ALPS-FAS with lack of protein expression. These findings will help decipher critical regions required for the tight regulation of FAS exon 6 splicing. We also discuss the genotype-phenotype correlation and disease severity in AR ALPS-FAS. Altogether, the study of ALPS molecular bases in endogamous populations helps to better classify the disease subgroups and to unravel the Fas pathway functioning.
Collapse
Affiliation(s)
- Imen Ben-Mustapha
- Department of Immunology and LR11IPT02, Institut Pasteur de Tunis, 1002, Tunis-Belvédère, Tunisia.,The University of Tunis El Manar, Tunis, Tunisia
| | - Nourhen Agrebi
- Department of Immunology and LR11IPT02, Institut Pasteur de Tunis, 1002, Tunis-Belvédère, Tunisia.,The University of Tunis El Manar, Tunis, Tunisia.,Faculty of Sciences of Bizerte, The University of Carthage, Bizerte, Tunisia
| | - Mohamed-Ridha Barbouche
- Department of Immunology and LR11IPT02, Institut Pasteur de Tunis, 1002, Tunis-Belvédère, Tunisia.,The University of Tunis El Manar, Tunis, Tunisia
| |
Collapse
|