1
|
Wilkie H, Das M, Pelovitz T, Bainter W, Woods B, Alasharee M, Sobh A, Baris S, Eltan SB, Al-Herz W, Barbouche MR, Ben-Mustapha I, Ben-Ali M, Sallam MTH, Awad A, Lotfy S, El Marsafy A, Ezzelarab M, Farrar M, Schmidt BAR, NandyMazumdar M, Guttman-Yassky E, Sheets A, Vidic KM, Murphy G, Schlievert PM, Chou J, Leyva-Castillo JM, Janssen E, Timilshina M, Geha RS. Regulatory T-cell dysfunction and cutaneous exposure to Staphylococcus aureus underlie eczema in DOCK8 deficiency. J Allergy Clin Immunol 2024:S0091-6749(24)00005-8. [PMID: 38185418 DOI: 10.1016/j.jaci.2023.12.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 12/19/2023] [Accepted: 12/27/2023] [Indexed: 01/09/2024]
Abstract
BACKGROUND Dedicator of cytokinesis 8 (DOCK8)-deficient patients have severe eczema, elevated IgE, and eosinophilia, features of atopic dermatitis (AD). OBJECTIVE We sought to understand the mechanisms of eczema in DOCK8 deficiency. METHODS Skin biopsy samples were characterized by histology, immunofluorescence microscopy, and gene expression. Skin barrier function was measured by transepidermal water loss. Allergic skin inflammation was elicited in mice by epicutaneous sensitization with ovalbumin (OVA) or cutaneous application of Staphylococcus aureus. RESULTS Skin lesions of DOCK8-deficient patients exhibited type 2 inflammation, and the patients' skin was colonized by Saureus, as in AD. Unlike in AD, DOCK8-deficient patients had a reduced FOXP3:CD4 ratio in their skin lesions, and their skin barrier function was intrinsically intact. Dock8-/- mice exhibited reduced numbers of cutaneous T regulatory (Treg) cells and a normal skin barrier. Dock8-/- and mice with an inducible Dock8 deletion in Treg cells exhibited increased allergic skin inflammation after epicutaneous sensitization with OVA. DOCK8 was shown to be important for Treg cell stability at sites of allergic inflammation and for the generation, survival, and suppressive activity of inducible Treg cells. Adoptive transfer of wild-type, but not DOCK8-deficient, OVA-specific, inducible Treg cells suppressed allergic inflammation in OVA-sensitized skin of Dock8-/- mice. These mice developed severe allergic skin inflammation and elevated serum IgE levels after topical exposure to Saureus. Both were attenuated after adoptive transfer of WT but not DOCK8-deficient Treg cells. CONCLUSION Treg cell dysfunction increases susceptibility to allergic skin inflammation in DOCK8 deficiency and synergizes with cutaneous exposure to Saureus to drive eczema in DOCK8 deficiency.
Collapse
Affiliation(s)
- Hazel Wilkie
- Division of Immunology, Boston Children's Hospital, and the Department of Pediatrics Harvard Medical School, Boston, Mass
| | - Mrinmoy Das
- Division of Immunology, Boston Children's Hospital, and the Department of Pediatrics Harvard Medical School, Boston, Mass
| | - Tyler Pelovitz
- Division of Immunology, Boston Children's Hospital, and the Department of Pediatrics Harvard Medical School, Boston, Mass
| | - Wayne Bainter
- Division of Immunology, Boston Children's Hospital, and the Department of Pediatrics Harvard Medical School, Boston, Mass
| | - Brian Woods
- Division of Immunology, Boston Children's Hospital, and the Department of Pediatrics Harvard Medical School, Boston, Mass
| | - Mohammed Alasharee
- Division of Immunology, Boston Children's Hospital, and the Department of Pediatrics Harvard Medical School, Boston, Mass
| | - Ali Sobh
- Department of Pediatrics, Mansoura University Children's Hospital, Faculty of Medicine, Mansoura University, Mansoura, Egypt
| | - Safa Baris
- Division of Pediatric Allergy and Immunology, Marmara University, Istanbul, Turkey
| | - Sevgi Bilgic Eltan
- Division of Pediatric Allergy and Immunology, Marmara University, Istanbul, Turkey
| | - Waleed Al-Herz
- Department of Pediatrics, Allergy and Clinical Immunology Unit, Al-Sabah Hospital, Kuwait City, Kuwait
| | - Mohamed-Ridha Barbouche
- Department of Microbiology, Immunology and Infectious Diseases, College of Medicine and Medical Sciences, Arabian Gulf University, Manama, Bahrain
| | - Imen Ben-Mustapha
- Department of Immunology, Institut Pasteur de Tunis and University Tunis El-Manar, Tunis, Tunisia
| | - Meriem Ben-Ali
- Department of Immunology, Institut Pasteur de Tunis and University Tunis El-Manar, Tunis, Tunisia
| | - Mohamed T H Sallam
- Clinical Pathology Department, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Amany Awad
- Dermatology, Andrology, and STDs Department, Faculty of Medicine, Mansoura University, Mansoura, Egypt
| | - Sohilla Lotfy
- Department of Pediatrics, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Aisha El Marsafy
- Department of Pediatrics, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Moushira Ezzelarab
- Department of Clinical and Chemical Pathology, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Michael Farrar
- Center for Immunology, Masonic Cancer Center, Department of Laboratory and Pathology, University of Minnesota, Minneapolis, Minn
| | - Brigitta A R Schmidt
- Department of Pathology, Boston Children's Hospital, Harvard Medical School, Boston, Mass
| | - Monali NandyMazumdar
- Department of Dermatology and the Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Emma Guttman-Yassky
- Department of Dermatology and the Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Anthony Sheets
- Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, Mass
| | - Katie Maria Vidic
- Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, Mass
| | - George Murphy
- Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, Mass
| | - Patrick M Schlievert
- Department of Microbiology and Immunology, Carver College of Medicine, University of Iowa Health Care, Iowa City, Iowa
| | - Janet Chou
- Division of Immunology, Boston Children's Hospital, and the Department of Pediatrics Harvard Medical School, Boston, Mass
| | - Juan Manuel Leyva-Castillo
- Division of Immunology, Boston Children's Hospital, and the Department of Pediatrics Harvard Medical School, Boston, Mass
| | - Erin Janssen
- Division of Immunology, Boston Children's Hospital, and the Department of Pediatrics Harvard Medical School, Boston, Mass
| | - Maheshwor Timilshina
- Division of Immunology, Boston Children's Hospital, and the Department of Pediatrics Harvard Medical School, Boston, Mass.
| | - Raif S Geha
- Division of Immunology, Boston Children's Hospital, and the Department of Pediatrics Harvard Medical School, Boston, Mass.
| |
Collapse
|
2
|
Yaakoubi R, Mekki N, Ben-Mustapha I, Ben-Khemis L, Bouaziz A, Ben Fraj I, Ammar J, Hamzaoui A, Turki H, Boussofara L, Denguezli M, Haddad S, Ouederni M, Bejaoui M, Chan KW, Lau YL, Mellouli F, Barbouche MR, Ben-Ali M. Diagnostic challenge in a series of eleven patients with hyper IgE syndromes. Front Immunol 2023; 13:1057679. [PMID: 36703986 PMCID: PMC9871884 DOI: 10.3389/fimmu.2022.1057679] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Accepted: 12/22/2022] [Indexed: 01/12/2023] Open
Abstract
Hyper IgE syndromes (HIES) is a heterogeneous group of Inborn Errors of Immunity characterized by eczema, recurrent skin and lung infections associated with eosinophilia and elevated IgE levels. Autosomal dominant HIES caused by loss of function mutations in Signal transducer and activator of transcription 3 (STAT3) gene is the prototype of these disorders. Over the past two decades, advent in genetic testing allowed the identification of ten other etiologies of HIES. Although Dedicator of Cytokinesis 8 (DOCK8) deficiency is no more classified among HIES etiologies but as a combined immunodeficiency, this disease, characterized by severe viral infections, food allergies, autoimmunity, and increased risk of malignancies, shares some clinical features with STAT3 deficiency. The present study highlights the diagnostic challenge in eleven patients with the clinical phenotype of HIES in a resource-limited region. Candidate gene strategy supported by clinical features, laboratory findings and functional investigations allowed the identification of two heterozygous STAT3 mutations in five patients, and a bi-allelic DOCK8 mutation in one patient. Whole Exome Sequencing allowed to unmask atypical presentations of DOCK8 deficiency in two patients presenting with clinical features reminiscent of STAT3 deficiency. Our study underlies the importance of the differential diagnosis between STAT3 and DOCK8 deficiencies in order to improve diagnostic criteria and to propose appropriate therapeutic approaches. In addition, our findings emphasize the role of NGS in detecting mutations that induce overlapping phenotypes.
Collapse
Affiliation(s)
- Roukaya Yaakoubi
- Laboratory of Transmission, Control and Immunobiology of Infections, Institut Pasteur de Tunis, University Tunis El-Manar, Tunis, Tunisia,Faculty of Medicine, Tunis El Manar University, Tunis, Tunisia
| | - Najla Mekki
- Laboratory of Transmission, Control and Immunobiology of Infections, Institut Pasteur de Tunis, University Tunis El-Manar, Tunis, Tunisia,Faculty of Medicine, Tunis El Manar University, Tunis, Tunisia
| | - Imen Ben-Mustapha
- Laboratory of Transmission, Control and Immunobiology of Infections, Institut Pasteur de Tunis, University Tunis El-Manar, Tunis, Tunisia,Faculty of Medicine, Tunis El Manar University, Tunis, Tunisia
| | - Leila Ben-Khemis
- Laboratory of Transmission, Control and Immunobiology of Infections, Institut Pasteur de Tunis, University Tunis El-Manar, Tunis, Tunisia
| | - Asma Bouaziz
- Department of Pediatrics, Ben Arous Hospital of Tunis, Tunis, Tunisia
| | - Ilhem Ben Fraj
- Department of Pediatrics, National Bone Marrow Transplantation Center, Tunis, Tunisia
| | - Jamel Ammar
- Pulmonology B Department, AbderrahmenMami Hospital, Ariana, Tunisia
| | - Agnès Hamzaoui
- Pulmonology B Department, AbderrahmenMami Hospital, Ariana, Tunisia
| | - Hamida Turki
- Department of Dermatology, HédiChaker Hospital of SFAX, Sfax, Tunisia
| | - Lobna Boussofara
- Department of Dermatology, Farhat Hached Hospital, Sousse, Tunisia
| | | | - Samir Haddad
- Department of Pediatrics, Children Hospital of Tunis, Tunis, Tunisia
| | - Monia Ouederni
- Department of Pediatrics, National Bone Marrow Transplantation Center, Tunis, Tunisia
| | - Mohamed Bejaoui
- Department of Pediatrics, National Bone Marrow Transplantation Center, Tunis, Tunisia
| | - Koon Wing Chan
- Department of Pediatrics and Adolescent Medicine, Li KaShing Faculty of Medicine, The University of Hong Kong, Hong Kong, Hong Kong SAR, China
| | - Yu Lung Lau
- Department of Pediatrics and Adolescent Medicine, Li KaShing Faculty of Medicine, The University of Hong Kong, Hong Kong, Hong Kong SAR, China
| | - Fethi Mellouli
- Department of Pediatrics, National Bone Marrow Transplantation Center, Tunis, Tunisia
| | - Mohamed-Ridha Barbouche
- Laboratory of Transmission, Control and Immunobiology of Infections, Institut Pasteur de Tunis, University Tunis El-Manar, Tunis, Tunisia,Department of Microbiology, Immunology and Infectious Diseases, College of Medicine and Medical Sciences, Arabian Gulf University, Manama, Bahrain
| | - Meriem Ben-Ali
- Laboratory of Transmission, Control and Immunobiology of Infections, Institut Pasteur de Tunis, University Tunis El-Manar, Tunis, Tunisia,*Correspondence: Meriem Ben-Ali,
| |
Collapse
|
3
|
Fadil I, Ben-Ali M, Jeddane L, Barbouche MR, Bousfiha AA. The Seven STAT3-Related Hyper-IgE Syndromes. J Clin Immunol 2021; 41:1384-1389. [PMID: 33903995 DOI: 10.1007/s10875-021-01041-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Accepted: 04/12/2021] [Indexed: 11/24/2022]
Affiliation(s)
- Ilham Fadil
- Laboratory of Clinical Immunology, Inflammation, and Allergy (LICIA), Faculty of Medicine and Pharmacy, Hassan II University, Casablanca, Morocco
| | - Meriem Ben-Ali
- Laboratory of Transmission, Control and Immunobiology of Infections, Institut Pasteur de Tunis, University Tunis El-Manar, Tunis, Tunisia
| | - Leila Jeddane
- Laboratory of Clinical Immunology, Inflammation, and Allergy (LICIA), Faculty of Medicine and Pharmacy, Hassan II University, Casablanca, Morocco.,Immunology-Allergology Unit, National Reference Laboratory, University Mohammed VI of Health Sciences, Casablanca, Morocco
| | - Mohamed-Ridha Barbouche
- Laboratory of Transmission, Control and Immunobiology of Infections, Institut Pasteur de Tunis, University Tunis El-Manar, Tunis, Tunisia.,Faculty of Medicine of Tunis, University Tunis El-Manar, Tunis, Tunisia
| | - Ahmed Aziz Bousfiha
- Laboratory of Clinical Immunology, Inflammation, and Allergy (LICIA), Faculty of Medicine and Pharmacy, Hassan II University, Casablanca, Morocco. .,Clinical Immunology Unit, Department of Infectious Diseases, Harouchi Hospital, Ibn Rochd University Hospital, Casablanca, Morocco.
| |
Collapse
|
4
|
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] [What about the content of this article? (0)] [Affiliation(s)] [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
|
5
|
Ben-Ali M, Ben-Khemis L, Mekki N, Yaakoubi R, Ouni R, Benabdessalem C, Ben-Mustapha I, Barbouche MR. Defective glycosylation leads to defective gp130-dependent STAT3 signaling in PGM3-deficient patients. J Allergy Clin Immunol 2019; 143:1638-1640.e2. [DOI: 10.1016/j.jaci.2018.12.987] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2018] [Revised: 11/27/2018] [Accepted: 12/07/2018] [Indexed: 12/01/2022]
|
6
|
Ajmi H, Jemmali N, Mabrouk S, Hassayoun S, Ben-Ali M, Barbouche MR, Mokni M, Abroug S. Staphylococcal scalded skin syndrome: An uncommon symptomatology revealing an immune deficiency. Arch Pediatr 2017; 25:126-128. [PMID: 29248323 DOI: 10.1016/j.arcped.2017.11.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2017] [Revised: 07/15/2017] [Accepted: 11/05/2017] [Indexed: 10/18/2022]
Abstract
Primary immune deficiencies associated with hyper-IgE syndrome are rare diseases with clinical features dominated by recurring cutaneous and visceral bacterial infections, particularly infections due to Staphylococcus species. Most of these infections are associated with milder inflammation compared to normal. We report a primary immune deficiency associated with a hyper-IgE syndrome revealed by a staphylococcal scalded skin syndrome in a 5-year-old girl. The patient presented with a severe staphylococcal infection with extensive skin lesions and disseminated intravascular coagulation. She received intravenous fluids to compensate for fluid losses and anti-staphylococcal antibiotics. Coagulopathy was also corrected. However, the progression was rapidly fatal.
Collapse
Affiliation(s)
- H Ajmi
- Department of pediatrics, Sahloul University Hospital, 4054, Sousse Tunisia.
| | - N Jemmali
- Department of pediatrics, Sahloul University Hospital, 4054, Sousse Tunisia
| | - S Mabrouk
- Department of pediatrics, Sahloul University Hospital, 4054, Sousse Tunisia
| | - S Hassayoun
- Department of pediatrics, Sahloul University Hospital, 4054, Sousse Tunisia
| | - M Ben-Ali
- Department of immunology, Pasteur Institute, 13, place Pasteur, 1002 Tunis, Tunisia
| | - M-R Barbouche
- Department of immunology, Pasteur Institute, 13, place Pasteur, 1002 Tunis, Tunisia
| | - M Mokni
- Department of pathology, Farhat Hached University Hospital, Ibn Jazzar street, 4031 Sousse, Tunisia
| | - S Abroug
- Department of pediatrics, Sahloul University Hospital, 4054, Sousse Tunisia
| |
Collapse
|
7
|
Agrebi N, Sfaihi Ben-Mansour L, Medhaffar M, Hadiji S, Fedhila F, Ben-Ali M, Mekki N, Hachicha M, Barsaoui S, Barbouche MR, Ben-Mustapha I. Autoimmune lymphoproliferative syndrome caused by homozygous FAS mutations with normal or residual protein expression. J Allergy Clin Immunol 2017; 140:298-301.e3. [DOI: 10.1016/j.jaci.2016.11.033] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2016] [Revised: 10/14/2016] [Accepted: 11/02/2016] [Indexed: 12/31/2022]
|
8
|
Agrebi N, Ben-Mustapha I, Matoussi N, Dhouib N, Ben-Ali M, Mekki N, Ben-Ahmed M, Larguèche B, Ben Becher S, Béjaoui M, Barbouche MR. Rare splicing defects of FAS underly severe recessive autoimmune lymphoproliferative syndrome. Clin Immunol 2017; 183:17-23. [PMID: 28668589 DOI: 10.1016/j.clim.2017.06.009] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2016] [Revised: 06/08/2017] [Accepted: 06/25/2017] [Indexed: 10/19/2022]
Abstract
Autoimmune lymphoproliferative syndrome (ALPS) is a prototypic disorder of impaired apoptosis characterized by autoimmune features and lymphoproliferation. Heterozygous germline or somatic FAS mutations associated with preserved protein expression have been described. Very rare cases of homozygous germline FAS mutations causing severe autosomal recessive form of ALPS with a complete defect of Fas expression have been reported. We report two unrelated patients from highly inbred North African population showing a severe ALPS phenotype and an undetectable Fas surface expression. Two novel homozygous mutations have been identified underlying rare splicing defects mechanisms. The first mutation breaks a branch point sequence and the second alters a regulatory exonic splicing site. These splicing defects induce the skipping of exon 6 encoding the transmembrane domain of CD95. Our findings highlight the requirement of tight regulation of FAS exon 6 splicing for balanced alternative splicing and illustrate the importance of such studies in highly consanguineous populations.
Collapse
Affiliation(s)
- N Agrebi
- Laboratory of Transmission, Control and Immunobiology of Infections (LR11IPT02), Institut Pasteur de Tunis, 1002 Tunis, Belvédère, Tunisia; Université de Tunis El Manar, 1068 Tunis, Tunisia; The University of Carthage, Faculty of Sciences of Bizerte, 7021 Jarzouna, Tunisia
| | - I Ben-Mustapha
- Laboratory of Transmission, Control and Immunobiology of Infections (LR11IPT02), Institut Pasteur de Tunis, 1002 Tunis, Belvédère, Tunisia; Université de Tunis El Manar, 1068 Tunis, Tunisia; Faculty of Medicine, 1007 Tunis, Tunisia.
| | - N Matoussi
- Faculty of Medicine, 1007 Tunis, Tunisia; Department of Pediatric Care, Emergency and Out Patient Children's Hospital of Tunis, 1029 Tunis, Tunisia
| | - N Dhouib
- Faculty of Medicine, 1007 Tunis, Tunisia; National Bone Marrow Transplantation Center, 1006 Tunis, Tunisia
| | - M Ben-Ali
- Laboratory of Transmission, Control and Immunobiology of Infections (LR11IPT02), Institut Pasteur de Tunis, 1002 Tunis, Belvédère, Tunisia; Université de Tunis El Manar, 1068 Tunis, Tunisia
| | - N Mekki
- Laboratory of Transmission, Control and Immunobiology of Infections (LR11IPT02), Institut Pasteur de Tunis, 1002 Tunis, Belvédère, Tunisia; Université de Tunis El Manar, 1068 Tunis, Tunisia; Faculty of Medicine, 1007 Tunis, Tunisia
| | - M Ben-Ahmed
- Laboratory of Transmission, Control and Immunobiology of Infections (LR11IPT02), Institut Pasteur de Tunis, 1002 Tunis, Belvédère, Tunisia; Université de Tunis El Manar, 1068 Tunis, Tunisia; Faculty of Medicine, 1007 Tunis, Tunisia
| | - B Larguèche
- Laboratory of Transmission, Control and Immunobiology of Infections (LR11IPT02), Institut Pasteur de Tunis, 1002 Tunis, Belvédère, Tunisia
| | - S Ben Becher
- Faculty of Medicine, 1007 Tunis, Tunisia; Department of Pediatric Care, Emergency and Out Patient Children's Hospital of Tunis, 1029 Tunis, Tunisia
| | - M Béjaoui
- Faculty of Medicine, 1007 Tunis, Tunisia; National Bone Marrow Transplantation Center, 1006 Tunis, Tunisia
| | - M R Barbouche
- Laboratory of Transmission, Control and Immunobiology of Infections (LR11IPT02), Institut Pasteur de Tunis, 1002 Tunis, Belvédère, Tunisia; Université de Tunis El Manar, 1068 Tunis, Tunisia; Faculty of Medicine, 1007 Tunis, Tunisia
| |
Collapse
|
9
|
Barbouche MR, Mekki N, Ben-Ali M, Ben-Mustapha I. Lessons from Genetic Studies of Primary Immunodeficiencies in a Highly Consanguineous Population. Front Immunol 2017; 8:737. [PMID: 28702026 PMCID: PMC5485821 DOI: 10.3389/fimmu.2017.00737] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Accepted: 06/12/2017] [Indexed: 11/29/2022] Open
Abstract
During the last decades, the study of primary immunodeficiencies (PIDs) has contributed tremendously to unravel novel pathways involved in a variety of immune responses. Many of these PIDs have an autosomal recessive (AR) mode of inheritance. Thus, the investigation of the molecular basis of PIDs is particularly relevant in consanguineous populations from Middle East and North Africa (MENA). Although significant efforts have been made in recent years to develop genetic testing across the MENA region, few comprehensive studies reporting molecular basis of PIDs in these settings are available. Herein, we review genetic characteristics of PIDs identified in 168 patients from an inbred Tunisian population. A spectrum of 25 genes involved was analyzed. We show that AR forms compared to X-linked or autosomal dominant forms are clearly the most frequent. Furthermore, the study of informative consanguineous families did allow the identification of a novel hyper-IgE syndrome linked to phosphoglucomutase 3 mutations. We did also report a novel form of autoimmune lymphoproliferative syndrome caused by homozygous FAS mutations with normal or residual protein expression as well as a novel AR transcription factor 3 deficiency. Finally, we identified several founder effects for specific AR mutations. This did facilitate the implementation of preventive approaches through genetic counseling in affected consanguineous families. All together, these findings highlight the specific nature of highly consanguineous populations and confirm the importance of unraveling the molecular basis of genetic diseases in this context. Besides providing a better fundamental knowledge of novel pathways, their study is improving diagnosis strategies and appropriate care.
Collapse
Affiliation(s)
- Mohamed-Ridha Barbouche
- Laboratory of Transmission, Control and Immunobiology of Infection (LR11IPT02), Institut Pasteur de Tunis, Tunis, Tunisia.,Faculty of Medicine, Université de Tunis El Manar, Tunis, Tunisia
| | - Najla Mekki
- Laboratory of Transmission, Control and Immunobiology of Infection (LR11IPT02), Institut Pasteur de Tunis, Tunis, Tunisia.,Faculty of Medicine, Université de Tunis El Manar, Tunis, Tunisia
| | - Meriem Ben-Ali
- Laboratory of Transmission, Control and Immunobiology of Infection (LR11IPT02), Institut Pasteur de Tunis, Tunis, Tunisia
| | - Imen Ben-Mustapha
- Laboratory of Transmission, Control and Immunobiology of Infection (LR11IPT02), Institut Pasteur de Tunis, Tunis, Tunisia.,Faculty of Medicine, Université de Tunis El Manar, Tunis, Tunisia
| |
Collapse
|
10
|
Ben-Farhat K, Ben-Mustapha I, Ben-Ali M, Rouault K, Hamami S, Mekki N, Ben-Chehida A, Larguèche B, Fitouri Z, Abdelmoula S, Khemiri M, Guediche MN, Boukthir S, Barsaoui S, Chemli J, Barbouche MR. A Founder Effect of c.257 + 2T > C Mutation in NCF2 Gene Underlies Severe Chronic Granulomatous Disease in Eleven Patients. J Clin Immunol 2016; 36:547-54. [PMID: 27220316 DOI: 10.1007/s10875-016-0299-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2015] [Accepted: 05/11/2016] [Indexed: 01/22/2023]
Abstract
Chronic granulomatous disease (CGD) is the prototypic functional neutrophil disorder caused by genetic defects in one of the five genes encoding the superoxide-generating nicotinamide adenine dinucleotide phosphate (NADPH)-oxidase subunits of phagocytes. Mutations causing the most prevalent form of CGD in western populations are located in the X-linked-CYBB gene. The four remaining autosomal recessive (AR) forms collectively account for one-third of CGD cases. We investigated the clinical and molecular features of eleven patients with CGD from 6 consanguineous families, originating from contiguous regions in the west of Tunisia. The patients' clinical phenotype is characterized by a high incidence of mycobacterial infections. Five out of the eleven patients died despite treatment arguing in favor of a severe clinical form of CGD. These findings correlated with the absence of functional p67phox protein as well as the absence of residual reactive oxygen intermediates (ROI) production. Genetic analysis showed the presence, in all patients, of a unique mutation (c.257 + 2T > C) in NCF2 gene predicted to affect RNA splicing. Segregating analysis using nine polymorphic markers overlapping the NCF2 gene revealed a common haplotype spanning 4.1 Mb. The founder event responsible for this mutation was estimated to have arisen approximately 175 years ago. These findings will facilitate the implementation of preventive approaches through genetic counseling in affected consanguineous families.
Collapse
Affiliation(s)
- Khaoula Ben-Farhat
- Laboratory of Transmission, Control and Immunobiology of Infections (LTCII), LR11IPT02, Institut Pasteur de Tunis, Pasteur, 1002, Tunis-Belvedere, Tunisia.,University of Tunis El Manar, 1068, Tunis, Tunisia
| | - Imen Ben-Mustapha
- Laboratory of Transmission, Control and Immunobiology of Infections (LTCII), LR11IPT02, Institut Pasteur de Tunis, Pasteur, 1002, Tunis-Belvedere, Tunisia. .,University of Tunis El Manar, 1068, Tunis, Tunisia. .,Faculty of Medicine, Tunis, Tunisia.
| | - Meriem Ben-Ali
- Laboratory of Transmission, Control and Immunobiology of Infections (LTCII), LR11IPT02, Institut Pasteur de Tunis, Pasteur, 1002, Tunis-Belvedere, Tunisia.,University of Tunis El Manar, 1068, Tunis, Tunisia
| | | | - Saber Hamami
- Department of Pediatrics, Fattouma Bourguiba Hospital, 5000, Monastir, Tunisia
| | - Najla Mekki
- Laboratory of Transmission, Control and Immunobiology of Infections (LTCII), LR11IPT02, Institut Pasteur de Tunis, Pasteur, 1002, Tunis-Belvedere, Tunisia.,University of Tunis El Manar, 1068, Tunis, Tunisia.,Faculty of Medicine, Tunis, Tunisia
| | - Amel Ben-Chehida
- Department of Pediatrics, La Rabta Hospital, 1007, Tunis, Tunisia
| | - Beya Larguèche
- Laboratory of Transmission, Control and Immunobiology of Infections (LTCII), LR11IPT02, Institut Pasteur de Tunis, Pasteur, 1002, Tunis-Belvedere, Tunisia
| | - Zohra Fitouri
- Department of Emergency and Consultations, Children's Hospital, 1029, Tunis, Tunisia
| | - Selim Abdelmoula
- Department of Pediatrics, La Rabta Hospital, 1007, Tunis, Tunisia
| | - Monia Khemiri
- Department of Pediatrics A, Children's Hospital, 1029, Tunis, Tunisia
| | | | - Samir Boukthir
- Department of Pediatrics C, Children's Hospital, 1029, Tunis, Tunisia
| | - Sihem Barsaoui
- Department of Pediatrics A, Children's Hospital, 1029, Tunis, Tunisia
| | - Jalel Chemli
- Department of Pediatrics, Sahloul Hospital, 4011, Sousse, Tunisia
| | - Mohamed-Ridha Barbouche
- Laboratory of Transmission, Control and Immunobiology of Infections (LTCII), LR11IPT02, Institut Pasteur de Tunis, Pasteur, 1002, Tunis-Belvedere, Tunisia.,University of Tunis El Manar, 1068, Tunis, Tunisia.,Faculty of Medicine, Tunis, Tunisia
| |
Collapse
|
11
|
Aadam Z, Kechout N, Barakat A, Chan KW, Ben-Ali M, Ben-Mustapha I, Zidi F, Ailal F, Attal N, Doudou F, Abbadi MC, Kaddache C, Smati L, Touri N, Chemli J, Gargah T, Brini I, Bakhchane A, Charoute H, Jeddane L, El Atiqi S, El Hafidi N, Hida M, Saile R, Alj HS, Boukari R, Bejaoui M, Najib J, Barbouche MR, Lau YL, Mellouli F, Bousfiha AA. X-Linked Agammagobulinemia in a Large Series of North African Patients: Frequency, Clinical Features and Novel BTK Mutations. J Clin Immunol 2016; 36:187-94. [PMID: 26931785 DOI: 10.1007/s10875-016-0251-z] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2015] [Accepted: 02/21/2016] [Indexed: 11/26/2022]
Abstract
PURPOSE X-linked agammagobulinemia (XLA) is a primary immunodeficiency caused by Bruton's tyrosine kinase (BTK) gene defect. XLA patients have absent or reduced number of peripheral B cells and a profound deficiency in all immunoglobulin isotypes. This multicenter study reports the clinical, immunological and molecular features of Bruton's disease in 40 North African male patients. METHODS Fifty male out of 63 (male and female) patients diagnosed with serum agammaglobulinemia and non detectable to less than 2% peripheral B cells were enrolled. The search for BTK gene mutations was performed for all of them by genomic DNA amplification and Sanger sequencing. RESULTS We identified 33 different mutations in the BTK gene in 40 patients including 12 missense mutations, 6 nonsense mutations, 6 splice-site mutations, 5 frameshift, 2 large deletions, one complex mutation and one in-frame deletion. Seventeen of these mutations are novel. This large series shows a lower frequency of XLA among male patients from North Africa with agammaglobulinemia and absent to low B cells compared with other international studies (63.5% vs. 85%). No strong evidence for genotype-phenotype correlation was observed. CONCLUSIONS This study adds to other reports from highly consanguineous North African populations, showing lower frequency of X-linked forms as compared to AR forms of the same primary immunodeficiency. Furthermore, a large number of novel BTK mutations were identified and could further help identify carriers for genetic counseling.
Collapse
Affiliation(s)
- Zahra Aadam
- Laboratory of Biology and Health URAC34-Metabolic and Immunologic pathology Research Team, Faculty of Science of BenM'sik, King Hassan II University, Casablanca, Morocco
- Institut Pasteur, Human Molecular Genetic Laboratory, Casablanca, Morocco
| | - Nadia Kechout
- Department of Immunology, Institut Pasteur d'Algérie, Faculty of Medicine, Algiers, Algeria
| | - Abdelhamid Barakat
- Institut Pasteur, Human Molecular Genetic Laboratory, Casablanca, Morocco.
| | - Koon-Wing Chan
- Departments of Pediatrics and Adolescent Medicine, The University of Hong Kong, Pokfulam, Hong Kong
| | - Meriem Ben-Ali
- Laboratory of Transmission, Control and Immunobiology of Infections (LR11IPT02), Institut Pasteur de Tunis, and University Tunis El Manar, Tunis, Tunisia
| | - Imen Ben-Mustapha
- Laboratory of Transmission, Control and Immunobiology of Infections (LR11IPT02), Institut Pasteur de Tunis, and University Tunis El Manar, Tunis, Tunisia
| | - Fethi Zidi
- Department of Pediatrics, Regional Hospital of Tozeur, Tozeur, Tunisia
| | - Fatima Ailal
- Clinical Immunology Unit, Ibn Rochd Hospital, King Hassan II University-AinChok, Casablanca, Morocco
| | - Nabila Attal
- Department of Immunology, Institut Pasteur d'Algérie, Faculty of Medicine, Algiers, Algeria
| | - Fatouma Doudou
- Department of Immunology, Institut Pasteur d'Algérie, Faculty of Medicine, Algiers, Algeria
| | - Mohamed-Cherif Abbadi
- Department of Immunology, Institut Pasteur d'Algérie, Faculty of Medicine, Algiers, Algeria
| | | | - Leila Smati
- Department of Pediatrics, EPH Bologhine, Faculty of Medicine, Algiers, Algeria
| | - Nabila Touri
- Department of Pediatrics, CHU Blida, Blida, Algeria
| | - Jalel Chemli
- Department of Pediatrics, Sahloul Hospital, Sousse, Tunisia
| | - Tahar Gargah
- Department of Pediatrics, Charles Nicolle Hospital, Tunis, Tunisia
| | - Ines Brini
- Department of Pediatrics B, Children's Hospital of Tunis, Tunis, Tunisia
| | - Amina Bakhchane
- Institut Pasteur, Human Molecular Genetic Laboratory, Casablanca, Morocco
| | - Hicham Charoute
- Institut Pasteur, Human Molecular Genetic Laboratory, Casablanca, Morocco
| | - Leila Jeddane
- Clinical Immunology Unit, Ibn Rochd Hospital, King Hassan II University-AinChok, Casablanca, Morocco
| | - Sara El Atiqi
- Clinical Immunology Unit, Ibn Rochd Hospital, King Hassan II University-AinChok, Casablanca, Morocco
| | - Naïma El Hafidi
- Department of Pediatric Infectious Diseases, Avicenne University Hospital, Rabat, Morocco
| | - Mustapha Hida
- Department of Pediatrics, Hassan II University Hospital, Fez, Morocco
| | - Rachid Saile
- Laboratory of Biology and Health URAC34-Metabolic and Immunologic pathology Research Team, Faculty of Science of BenM'sik, King Hassan II University, Casablanca, Morocco
| | - Hanane Salih Alj
- Laboratory of Biology and Health URAC34-Metabolic and Immunologic pathology Research Team, Faculty of Science of BenM'sik, King Hassan II University, Casablanca, Morocco
| | - Rachida Boukari
- Department of Pediatrics, CHU Mustapaha Bacha, Faculty of Medicine, Algiers, Algeria
| | - Mohamed Bejaoui
- National Bone Marrow Transplantation Center, Jebel Lakhdar, Tunis, Tunisia
| | - Jilali Najib
- Clinical Immunology Unit, Ibn Rochd Hospital, King Hassan II University-AinChok, Casablanca, Morocco
| | - Mohamed-Ridha Barbouche
- Laboratory of Transmission, Control and Immunobiology of Infections (LR11IPT02), Institut Pasteur de Tunis, and University Tunis El Manar, Tunis, Tunisia
| | - Yu-Lung Lau
- Departments of Pediatrics and Adolescent Medicine, The University of Hong Kong, Pokfulam, Hong Kong
| | - Fethi Mellouli
- National Bone Marrow Transplantation Center, Jebel Lakhdar, Tunis, Tunisia
| | - Ahmed Aziz Bousfiha
- Clinical Immunology Unit, Ibn Rochd Hospital, King Hassan II University-AinChok, Casablanca, Morocco
| |
Collapse
|
12
|
Sassi A, Lazaroski S, Wu G, Haslam SM, Fliegauf M, Mellouli F, Patiroglu T, Unal E, Ozdemir MA, Jouhadi Z, Khadir K, Ben-Khemis L, Ben-Ali M, Ben-Mustapha I, Borchani L, Pfeifer D, Jakob T, Khemiri M, Asplund AC, Gustafsson MO, Lundin KE, Falk-Sörqvist E, Moens LN, Gungor HE, Engelhardt KR, Dziadzio M, Stauss H, Fleckenstein B, Meier R, Prayitno K, Maul-Pavicic A, Schaffer S, Rakhmanov M, Henneke P, Kraus H, Eibel H, Kölsch U, Nadifi S, Nilsson M, Bejaoui M, Schäffer AA, Smith CIE, Dell A, Barbouche MR, Grimbacher B. Hypomorphic homozygous mutations in phosphoglucomutase 3 (PGM3) impair immunity and increase serum IgE levels. J Allergy Clin Immunol 2014; 133:1410-9, 1419.e1-13. [PMID: 24698316 DOI: 10.1016/j.jaci.2014.02.025] [Citation(s) in RCA: 130] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2013] [Revised: 01/31/2014] [Accepted: 02/04/2014] [Indexed: 12/27/2022]
Abstract
BACKGROUND Recurrent bacterial and fungal infections, eczema, and increased serum IgE levels characterize patients with the hyper-IgE syndrome (HIES). Known genetic causes for HIES are mutations in signal transducer and activator of transcription 3 (STAT3) and dedicator of cytokinesis 8 (DOCK8), which are involved in signal transduction pathways. However, glycosylation defects have not been described in patients with HIES. One crucial enzyme in the glycosylation pathway is phosphoglucomutase 3 (PGM3), which catalyzes a key step in the synthesis of uridine diphosphate N-acetylglucosamine, which is required for the biosynthesis of N-glycans. OBJECTIVE We sought to elucidate the genetic cause in patients with HIES who do not carry mutations in STAT3 or DOCK8. METHODS After establishing a linkage interval by means of SNPchip genotyping and homozygosity mapping in 2 families with HIES from Tunisia, mutational analysis was performed with selector-based, high-throughput sequencing. Protein expression was analyzed by means of Western blotting, and glycosylation was profiled by using mass spectrometry. RESULTS Mutational analysis of candidate genes in an 11.9-Mb linkage region on chromosome 6 shared by 2 multiplex families identified 2 homozygous mutations in PGM3 that segregated with disease status and followed recessive inheritance. The mutations predict amino acid changes in PGM3 (p.Glu340del and p.Leu83Ser). A third homozygous mutation (p.Asp502Tyr) and the p.Leu83Ser variant were identified in 2 other affected families, respectively. These hypomorphic mutations have an effect on the biosynthetic reactions involving uridine diphosphate N-acetylglucosamine. Glycomic analysis revealed an aberrant glycosylation pattern in leukocytes demonstrated by a reduced level of tri-antennary and tetra-antennary N-glycans. T-cell proliferation and differentiation were impaired in patients. Most patients had developmental delay, and many had psychomotor retardation. CONCLUSION Impairment of PGM3 function leads to a novel primary (inborn) error of development and immunity because biallelic hypomorphic mutations are associated with impaired glycosylation and a hyper-IgE-like phenotype.
Collapse
Affiliation(s)
- Atfa Sassi
- Laboratory of Immunopathology, Vaccinology and Molecular Genetics, Pasteur Institute of Tunis and University Tunis El Manar, Tunis, Tunisia
| | - Sandra Lazaroski
- Center for Chronic Immunodeficiency (CCI), University Medical Center Freiburg, Freiburg, Germany
| | - Gang Wu
- Department of Life Sciences, Imperial College London, London, United Kingdom
| | - Stuart M Haslam
- Department of Life Sciences, Imperial College London, London, United Kingdom
| | - Manfred Fliegauf
- Center for Chronic Immunodeficiency (CCI), University Medical Center Freiburg, Freiburg, Germany
| | - Fethi Mellouli
- Pediatrics Department, Bone Marrow Transplantation Center, Tunis, Tunisia
| | - Turkan Patiroglu
- Department of Pediatrics, Division of Pediatric Hematology and Oncology, Faculty of Medicine, Erciyes University, Kayseri, Turkey; Department of Pediatrics, Division of Pediatric Immunology, Faculty of Medicine, Erciyes University, Kayseri, Turkey
| | - Ekrem Unal
- Department of Pediatrics, Division of Pediatric Hematology and Oncology, Faculty of Medicine, Erciyes University, Kayseri, Turkey
| | - Mehmet Akif Ozdemir
- Department of Pediatrics, Division of Pediatric Hematology and Oncology, Faculty of Medicine, Erciyes University, Kayseri, Turkey
| | - Zineb Jouhadi
- Department of Pediatric Infectious Diseases, CHU IBN ROCHD, Hassan II University, Casablanca, Morocco
| | - Khadija Khadir
- Department of Pediatric Infectious Diseases, CHU IBN ROCHD, Hassan II University, Casablanca, Morocco
| | - Leila Ben-Khemis
- Laboratory of Immunopathology, Vaccinology and Molecular Genetics, Pasteur Institute of Tunis and University Tunis El Manar, Tunis, Tunisia
| | - Meriem Ben-Ali
- Laboratory of Immunopathology, Vaccinology and Molecular Genetics, Pasteur Institute of Tunis and University Tunis El Manar, Tunis, Tunisia
| | - Imen Ben-Mustapha
- Laboratory of Immunopathology, Vaccinology and Molecular Genetics, Pasteur Institute of Tunis and University Tunis El Manar, Tunis, Tunisia
| | - Lamia Borchani
- Laboratory of Venoms and Therapeutic Molecules, Institut Pasteur de Tunis, Tunis, Tunisia
| | - Dietmar Pfeifer
- Department of Medicine I, Specialties: Hematology, Oncology, and Stem-Cell Transplantation, University Medical Center Freiburg, Freiburg, Germany
| | - Thilo Jakob
- Allergy Research Group, Department of Dermatology, University Medical Center Freiburg, Freiburg, Germany
| | - Monia Khemiri
- Pediatrics Department A, Children's Hospital of Tunis, Tunis, Tunisia
| | - A Charlotta Asplund
- Clinical Research Center, Department of Laboratory Medicine, Karolinska Institutet, Karolinska University Hospital Huddinge, Huddinge, Sweden
| | - Manuela O Gustafsson
- Clinical Research Center, Department of Laboratory Medicine, Karolinska Institutet, Karolinska University Hospital Huddinge, Huddinge, Sweden
| | - Karin E Lundin
- Clinical Research Center, Department of Laboratory Medicine, Karolinska Institutet, Karolinska University Hospital Huddinge, Huddinge, Sweden
| | - Elin Falk-Sörqvist
- Department of Immunology, Genetics and Pathology, Uppsala University, Rudbeck Laboratory, Uppsala, Sweden
| | - Lotte N Moens
- Department of Immunology, Genetics and Pathology, Uppsala University, Rudbeck Laboratory, Uppsala, Sweden
| | - Hatice Eke Gungor
- Department of Pediatrics, Division of Pediatric Immunology, Faculty of Medicine, Erciyes University, Kayseri, Turkey
| | - Karin R Engelhardt
- Royal Free Hospital, Institute of Immunity & Transplantation, University College London, London, United Kingdom
| | - Magdalena Dziadzio
- Royal Free Hospital, Institute of Immunity & Transplantation, University College London, London, United Kingdom
| | - Hans Stauss
- Royal Free Hospital, Institute of Immunity & Transplantation, University College London, London, United Kingdom
| | - Bernhard Fleckenstein
- Institute of Virology, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Rebecca Meier
- Center for Chronic Immunodeficiency (CCI), University Medical Center Freiburg, Freiburg, Germany
| | - Khairunnadiya Prayitno
- Center for Chronic Immunodeficiency (CCI), University Medical Center Freiburg, Freiburg, Germany
| | - Andrea Maul-Pavicic
- Center for Chronic Immunodeficiency (CCI), University Medical Center Freiburg, Freiburg, Germany
| | - Sandra Schaffer
- Center for Chronic Immunodeficiency (CCI), University Medical Center Freiburg, Freiburg, Germany
| | - Mirzokhid Rakhmanov
- Center for Chronic Immunodeficiency (CCI), University Medical Center Freiburg, Freiburg, Germany
| | - Philipp Henneke
- Center for Chronic Immunodeficiency (CCI), University Medical Center Freiburg, Freiburg, Germany
| | - Helene Kraus
- Center for Chronic Immunodeficiency (CCI), University Medical Center Freiburg, Freiburg, Germany
| | - Hermann Eibel
- Center for Chronic Immunodeficiency (CCI), University Medical Center Freiburg, Freiburg, Germany
| | - Uwe Kölsch
- Division of Immunology, Labor Berlin and Institute of Medical Immunology, Charité, Campus Virchow Klinikum, Berlin, Germany
| | - Sellama Nadifi
- Department of Genetics, Hassan II University, Casablanca, Morocco
| | - Mats Nilsson
- Department of Immunology, Genetics and Pathology, Uppsala University, Rudbeck Laboratory, Uppsala, Sweden
| | - Mohamed Bejaoui
- Pediatrics Department, Bone Marrow Transplantation Center, Tunis, Tunisia
| | - Alejandro A Schäffer
- National Center for Biotechnology Information, National Institutes of Health, Department of Health and Human Services, Bethesda, Md
| | - C I Edvard Smith
- Clinical Research Center, Department of Laboratory Medicine, Karolinska Institutet, Karolinska University Hospital Huddinge, Huddinge, Sweden
| | - Anne Dell
- Department of Life Sciences, Imperial College London, London, United Kingdom
| | - Mohamed-Ridha Barbouche
- Laboratory of Immunopathology, Vaccinology and Molecular Genetics, Pasteur Institute of Tunis and University Tunis El Manar, Tunis, Tunisia
| | - Bodo Grimbacher
- Center for Chronic Immunodeficiency (CCI), University Medical Center Freiburg, Freiburg, Germany; Royal Free Hospital, Institute of Immunity & Transplantation, University College London, London, United Kingdom.
| |
Collapse
|
13
|
Ben-Mustapha I, Ben-Ali M, Mekki N, Patin E, Harmant C, Bouguila J, Elloumi-Zghal H, Harbi A, Béjaoui M, Boughammoura L, Chemli J, Barbouche MR. A 1,100-year-old founder effect mutation in IL12B gene is responsible for Mendelian susceptibility to mycobacterial disease in Tunisian patients. Immunogenetics 2013; 66:67-71. [PMID: 24127073 DOI: 10.1007/s00251-013-0739-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2013] [Accepted: 09/21/2013] [Indexed: 11/28/2022]
Abstract
Mendelian susceptibility to mycobacterial disease (MSMD) is a rare disorder predisposing apparently healthy individuals to infections caused by weakly virulent mycobacteria such as bacille Calmette-Guerin (BCG), environmental mycobacteria, and poorly virulent Salmonella strains. IL-12p40 deficiency is the first reported human disease due to a cytokine gene defect and is one of the deficiencies that cause MSMD. Nine mutant alleles only have been identified in the IL12B gene, and three of them are recurrent mutations due to a founder effect in specific populations. IL-12p40 deficiency has been identified especially in countries where consanguinity is high and where BCG vaccination at birth is universal. We investigated, in such settings, the clinical, cellular, and molecular features of six IL-12p40-deficient Tunisian patients having the same mutation in IL12B gene (c.298_305del). We found that this mutation is inherited as a common founder mutation arousing ~1,100 years ago. This finding facilitates the development of a preventive approach by genetic counseling and prenatal diagnosis especially in affected families.
Collapse
Affiliation(s)
- Imen Ben-Mustapha
- Laboratory of Transmission, Control and Immunobiology of Infections (LTCII), Institut Pasteur de Tunis, LR11IPT02, Tunis-Belvédère, 1002, Tunisia
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
14
|
Prando C, Samarina A, Bustamante J, Boisson-Dupuis S, Cobat A, Picard C, AlSum Z, Al-Jumaah S, Al-Hajjar S, Frayha H, Al-Mousa H, Ben-Mustapha I, Adimi P, Feinberg J, de Suremain M, Jannière L, Filipe-Santos O, Mansouri N, Stephan JL, Nallusamy R, Kumararatne DS, Bloorsaz MR, Ben-Ali M, Elloumi-Zghal H, Chemli J, Bouguila J, Bejaoui M, Alaki E, AlFawaz TS, Al Idrissi E, ElGhazali G, Pollard AJ, Murugasu B, Wah Lee B, Halwani R, Al-Zahrani M, Al Shehri MA, Al-Zahrani M, Bin-Hussain I, Mahdaviani SA, Parvaneh N, Abel L, Mansouri D, Barbouche R, Al-Muhsen S, Casanova JL. Inherited IL-12p40 deficiency: genetic, immunologic, and clinical features of 49 patients from 30 kindreds. Medicine (Baltimore) 2013; 92:109-122. [PMID: 23429356 PMCID: PMC3822760 DOI: 10.1097/md.0b013e31828a01f9] [Citation(s) in RCA: 118] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Autosomal recessive interleukin (IL)-12 p40 (IL-12p40) deficiency is a rare genetic etiology of mendelian susceptibility to mycobacterial disease (MSMD). We report the genetic, immunologic, and clinical features of 49 patients from 30 kindreds originating from 5 countries (India, Iran, Pakistan, Saudi Arabia, and Tunisia). There are only 9 different mutant alleles of the IL12B gene: 2 small insertions, 3 small deletions, 2 splice site mutations, and 1 large deletion, each causing a frameshift and leading to a premature stop codon, and 1 nonsense mutation. Four of these 9 variants are recurrent, affecting 25 of the 30 reported kindreds, due to founder effects in specific countries. All patients are homozygous and display complete IL-12p40 deficiency. As a result, the patients lack detectable IL-12p70 and IL-12p40 and have low levels of interferon gamma (IFN-γ). The clinical features are characterized by childhood onset of bacille Calmette-Guérin (attenuated Mycobacterium bovis strain) (BCG) and Salmonella infections, with recurrences of salmonellosis (36.4%) more common than recurrences of mycobacterial disease (25%). BCG vaccination led to BCG disease in 40 of the 41 patients vaccinated (97.5%). Multiple mycobacterial infections were rare, observed in only 3 patients, whereas the association of salmonellosis and mycobacteriosis was observed in 9 patients. A few other infections were diagnosed, including chronic mucocutaneous candidiasis (n = 3), nocardiosis (n = 2), and klebsiellosis (n = 1). IL-12p40 deficiency has a high but incomplete clinical penetrance, with 33.3% of genetically affected relatives of index cases showing no symptoms. However, the prognosis is poor, with mortality rates of up to 28.6%. Overall, the clinical phenotype of IL-12p40 deficiency closely resembles that of interleukin 12 receptor β1 (IL-12Rβ1) deficiency. In conclusion, IL-12p40 deficiency is more common than initially thought and should be considered worldwide in patients with MSMD and other intramacrophagic infectious diseases, salmonellosis in particular.
Collapse
Affiliation(s)
| | - Arina Samarina
- From the St. Giles Laboratory of Human Genetics of Infectious Diseases (C. Prando, SBD, LA, JLC), Rockefeller Branch, The Rockefeller University, New York, New York; Laboratory of Human Genetics of Infectious Diseases (AS, J. Bustamante, SBD, C. Picard, JF, MdS, LJ, OFS, LA, JLC) Necker Branch, Institut National de la Santé et de la Recherche Médicale, U980, Necker Branch, Paris, France; University Paris Descartes (AS, J. Bustamante, SBD, C. Picard, JF, MdS, LJ, OFS, JLC) Paris Cité Sorbonne, Necker Medical School, Paris, France; Center for the Study of Primary Immunodeficiencies (J. Bustamante, C. Picard) and Pediatric Hematology-Immunology Unit (C. Picard, JLC), Assistance Publique-Hôpitaux de Paris, Necker Hospital, Paris, France; McGill Centre for the Study of Host Resistance (AC), Research Institute of McGill University Health Centre, and Departments of Human Genetics and Medicine, McGill University, Montreal, Quebec, Canada; Prince Naif Center for Immunology Research (ZAS, RH, S. Al-Muhsen, JLC) and Department of Pediatrics (ZAS, S. Al-Muhsen), College of Medicine, KingSaud University, Riyadh, Saudi Arabia; Department of Pediatrics (SAJ, SAH, HF, HAM, Mofareh Al-Zahrani, S. Al-Muhsen, IBH) King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia; King Saud Medical City (EA), Riyadh, Saudi Arabia; Laboratory of Cytoimmunology (IBM, MBA, HEZ, RB), Pasteur Institut of Tunis, Tunis-Belvédère, Tunisia; Department of Clinical Immunology and Infectious Disease (PA, NM, DM) and Pediatric Respiratory Disease Research Center (MRB S.A Mahdaviani), National Research Institute of Tuberculosis and Lung Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Department of Pediatrics (JLS), University of Saint Etienne, Hôpital Nord, Saint Etienne, France; Department of Pediatrics (RN), Penang Medical College, Penang, Malaysia; Department of Clinical Biochemistry and Immunology (DSK), Addenbrookes Hospital, Cambridge, United Kingdom; Department of Pediatrics (JC), Sahloul Hospital, Sousse, Tunisia; Department of Pediatrics (J. Bouguila), Farhat Hached Hospital, Sousse, Tunisia; Department of Pediatrics (MB), Bone Marrow Transplantation Center, Tunis, Tunisia; Department of Pediatrics (TSAF, EAI, GEG, MAAS, Mofareh Al-Zahrani), King Fahad Medical City, Riyadh, Saudi Arabia; Department of Paediatrics (AJP), University of Oxford, NIHR Oxford Biomedical Research Centre, Children’s Hospital, Oxford, United Kingdom; Department of Pediatrics (BM, BWL), National University of Singapore, Singapore; Department of Pediatrics (Mohammed Al-Zahrani), Security Forces Hospital, Riyadh, Saudi Arabia; and Pediatric Infectious Disease Research Center (NP), Tehran University of Medical Sciences, Tehran, Iran
| | - Jacinta Bustamante
- From the St. Giles Laboratory of Human Genetics of Infectious Diseases (C. Prando, SBD, LA, JLC), Rockefeller Branch, The Rockefeller University, New York, New York; Laboratory of Human Genetics of Infectious Diseases (AS, J. Bustamante, SBD, C. Picard, JF, MdS, LJ, OFS, LA, JLC) Necker Branch, Institut National de la Santé et de la Recherche Médicale, U980, Necker Branch, Paris, France; University Paris Descartes (AS, J. Bustamante, SBD, C. Picard, JF, MdS, LJ, OFS, JLC) Paris Cité Sorbonne, Necker Medical School, Paris, France; Center for the Study of Primary Immunodeficiencies (J. Bustamante, C. Picard) and Pediatric Hematology-Immunology Unit (C. Picard, JLC), Assistance Publique-Hôpitaux de Paris, Necker Hospital, Paris, France; McGill Centre for the Study of Host Resistance (AC), Research Institute of McGill University Health Centre, and Departments of Human Genetics and Medicine, McGill University, Montreal, Quebec, Canada; Prince Naif Center for Immunology Research (ZAS, RH, S. Al-Muhsen, JLC) and Department of Pediatrics (ZAS, S. Al-Muhsen), College of Medicine, KingSaud University, Riyadh, Saudi Arabia; Department of Pediatrics (SAJ, SAH, HF, HAM, Mofareh Al-Zahrani, S. Al-Muhsen, IBH) King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia; King Saud Medical City (EA), Riyadh, Saudi Arabia; Laboratory of Cytoimmunology (IBM, MBA, HEZ, RB), Pasteur Institut of Tunis, Tunis-Belvédère, Tunisia; Department of Clinical Immunology and Infectious Disease (PA, NM, DM) and Pediatric Respiratory Disease Research Center (MRB S.A Mahdaviani), National Research Institute of Tuberculosis and Lung Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Department of Pediatrics (JLS), University of Saint Etienne, Hôpital Nord, Saint Etienne, France; Department of Pediatrics (RN), Penang Medical College, Penang, Malaysia; Department of Clinical Biochemistry and Immunology (DSK), Addenbrookes Hospital, Cambridge, United Kingdom; Department of Pediatrics (JC), Sahloul Hospital, Sousse, Tunisia; Department of Pediatrics (J. Bouguila), Farhat Hached Hospital, Sousse, Tunisia; Department of Pediatrics (MB), Bone Marrow Transplantation Center, Tunis, Tunisia; Department of Pediatrics (TSAF, EAI, GEG, MAAS, Mofareh Al-Zahrani), King Fahad Medical City, Riyadh, Saudi Arabia; Department of Paediatrics (AJP), University of Oxford, NIHR Oxford Biomedical Research Centre, Children’s Hospital, Oxford, United Kingdom; Department of Pediatrics (BM, BWL), National University of Singapore, Singapore; Department of Pediatrics (Mohammed Al-Zahrani), Security Forces Hospital, Riyadh, Saudi Arabia; and Pediatric Infectious Disease Research Center (NP), Tehran University of Medical Sciences, Tehran, Iran
| | - Stéphanie Boisson-Dupuis
- From the St. Giles Laboratory of Human Genetics of Infectious Diseases (C. Prando, SBD, LA, JLC), Rockefeller Branch, The Rockefeller University, New York, New York; Laboratory of Human Genetics of Infectious Diseases (AS, J. Bustamante, SBD, C. Picard, JF, MdS, LJ, OFS, LA, JLC) Necker Branch, Institut National de la Santé et de la Recherche Médicale, U980, Necker Branch, Paris, France; University Paris Descartes (AS, J. Bustamante, SBD, C. Picard, JF, MdS, LJ, OFS, JLC) Paris Cité Sorbonne, Necker Medical School, Paris, France; Center for the Study of Primary Immunodeficiencies (J. Bustamante, C. Picard) and Pediatric Hematology-Immunology Unit (C. Picard, JLC), Assistance Publique-Hôpitaux de Paris, Necker Hospital, Paris, France; McGill Centre for the Study of Host Resistance (AC), Research Institute of McGill University Health Centre, and Departments of Human Genetics and Medicine, McGill University, Montreal, Quebec, Canada; Prince Naif Center for Immunology Research (ZAS, RH, S. Al-Muhsen, JLC) and Department of Pediatrics (ZAS, S. Al-Muhsen), College of Medicine, KingSaud University, Riyadh, Saudi Arabia; Department of Pediatrics (SAJ, SAH, HF, HAM, Mofareh Al-Zahrani, S. Al-Muhsen, IBH) King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia; King Saud Medical City (EA), Riyadh, Saudi Arabia; Laboratory of Cytoimmunology (IBM, MBA, HEZ, RB), Pasteur Institut of Tunis, Tunis-Belvédère, Tunisia; Department of Clinical Immunology and Infectious Disease (PA, NM, DM) and Pediatric Respiratory Disease Research Center (MRB S.A Mahdaviani), National Research Institute of Tuberculosis and Lung Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Department of Pediatrics (JLS), University of Saint Etienne, Hôpital Nord, Saint Etienne, France; Department of Pediatrics (RN), Penang Medical College, Penang, Malaysia; Department of Clinical Biochemistry and Immunology (DSK), Addenbrookes Hospital, Cambridge, United Kingdom; Department of Pediatrics (JC), Sahloul Hospital, Sousse, Tunisia; Department of Pediatrics (J. Bouguila), Farhat Hached Hospital, Sousse, Tunisia; Department of Pediatrics (MB), Bone Marrow Transplantation Center, Tunis, Tunisia; Department of Pediatrics (TSAF, EAI, GEG, MAAS, Mofareh Al-Zahrani), King Fahad Medical City, Riyadh, Saudi Arabia; Department of Paediatrics (AJP), University of Oxford, NIHR Oxford Biomedical Research Centre, Children’s Hospital, Oxford, United Kingdom; Department of Pediatrics (BM, BWL), National University of Singapore, Singapore; Department of Pediatrics (Mohammed Al-Zahrani), Security Forces Hospital, Riyadh, Saudi Arabia; and Pediatric Infectious Disease Research Center (NP), Tehran University of Medical Sciences, Tehran, Iran
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Saleh Al-Muhsen
- From the St. Giles Laboratory of Human Genetics of Infectious Diseases (C. Prando, SBD, LA, JLC), Rockefeller Branch, The Rockefeller University, New York, New York; Laboratory of Human Genetics of Infectious Diseases (AS, J. Bustamante, SBD, C. Picard, JF, MdS, LJ, OFS, LA, JLC) Necker Branch, Institut National de la Santé et de la Recherche Médicale, U980, Necker Branch, Paris, France; University Paris Descartes (AS, J. Bustamante, SBD, C. Picard, JF, MdS, LJ, OFS, JLC) Paris Cité Sorbonne, Necker Medical School, Paris, France; Center for the Study of Primary Immunodeficiencies (J. Bustamante, C. Picard) and Pediatric Hematology-Immunology Unit (C. Picard, JLC), Assistance Publique-Hôpitaux de Paris, Necker Hospital, Paris, France; McGill Centre for the Study of Host Resistance (AC), Research Institute of McGill University Health Centre, and Departments of Human Genetics and Medicine, McGill University, Montreal, Quebec, Canada; Prince Naif Center for Immunology Research (ZAS, RH, S. Al-Muhsen, JLC) and Department of Pediatrics (ZAS, S. Al-Muhsen), College of Medicine, KingSaud University, Riyadh, Saudi Arabia; Department of Pediatrics (SAJ, SAH, HF, HAM, Mofareh Al-Zahrani, S. Al-Muhsen, IBH) King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia; King Saud Medical City (EA), Riyadh, Saudi Arabia; Laboratory of Cytoimmunology (IBM, MBA, HEZ, RB), Pasteur Institut of Tunis, Tunis-Belvédère, Tunisia; Department of Clinical Immunology and Infectious Disease (PA, NM, DM) and Pediatric Respiratory Disease Research Center (MRB S.A Mahdaviani), National Research Institute of Tuberculosis and Lung Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Department of Pediatrics (JLS), University of Saint Etienne, Hôpital Nord, Saint Etienne, France; Department of Pediatrics (RN), Penang Medical College, Penang, Malaysia; Department of Clinical Biochemistry and Immunology (DSK), Addenbrookes Hospital, Cambridge, United Kingdom; Department of Pediatrics (JC), Sahloul Hospital, Sousse, Tunisia; Department of Pediatrics (J. Bouguila), Farhat Hached Hospital, Sousse, Tunisia; Department of Pediatrics (MB), Bone Marrow Transplantation Center, Tunis, Tunisia; Department of Pediatrics (TSAF, EAI, GEG, MAAS, Mofareh Al-Zahrani), King Fahad Medical City, Riyadh, Saudi Arabia; Department of Paediatrics (AJP), University of Oxford, NIHR Oxford Biomedical Research Centre, Children’s Hospital, Oxford, United Kingdom; Department of Pediatrics (BM, BWL), National University of Singapore, Singapore; Department of Pediatrics (Mohammed Al-Zahrani), Security Forces Hospital, Riyadh, Saudi Arabia; and Pediatric Infectious Disease Research Center (NP), Tehran University of Medical Sciences, Tehran, Iran
| | - Jean-Laurent Casanova
- From the St. Giles Laboratory of Human Genetics of Infectious Diseases (C. Prando, SBD, LA, JLC), Rockefeller Branch, The Rockefeller University, New York, New York; Laboratory of Human Genetics of Infectious Diseases (AS, J. Bustamante, SBD, C. Picard, JF, MdS, LJ, OFS, LA, JLC) Necker Branch, Institut National de la Santé et de la Recherche Médicale, U980, Necker Branch, Paris, France; University Paris Descartes (AS, J. Bustamante, SBD, C. Picard, JF, MdS, LJ, OFS, JLC) Paris Cité Sorbonne, Necker Medical School, Paris, France; Center for the Study of Primary Immunodeficiencies (J. Bustamante, C. Picard) and Pediatric Hematology-Immunology Unit (C. Picard, JLC), Assistance Publique-Hôpitaux de Paris, Necker Hospital, Paris, France; McGill Centre for the Study of Host Resistance (AC), Research Institute of McGill University Health Centre, and Departments of Human Genetics and Medicine, McGill University, Montreal, Quebec, Canada; Prince Naif Center for Immunology Research (ZAS, RH, S. Al-Muhsen, JLC) and Department of Pediatrics (ZAS, S. Al-Muhsen), College of Medicine, KingSaud University, Riyadh, Saudi Arabia; Department of Pediatrics (SAJ, SAH, HF, HAM, Mofareh Al-Zahrani, S. Al-Muhsen, IBH) King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia; King Saud Medical City (EA), Riyadh, Saudi Arabia; Laboratory of Cytoimmunology (IBM, MBA, HEZ, RB), Pasteur Institut of Tunis, Tunis-Belvédère, Tunisia; Department of Clinical Immunology and Infectious Disease (PA, NM, DM) and Pediatric Respiratory Disease Research Center (MRB S.A Mahdaviani), National Research Institute of Tuberculosis and Lung Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Department of Pediatrics (JLS), University of Saint Etienne, Hôpital Nord, Saint Etienne, France; Department of Pediatrics (RN), Penang Medical College, Penang, Malaysia; Department of Clinical Biochemistry and Immunology (DSK), Addenbrookes Hospital, Cambridge, United Kingdom; Department of Pediatrics (JC), Sahloul Hospital, Sousse, Tunisia; Department of Pediatrics (J. Bouguila), Farhat Hached Hospital, Sousse, Tunisia; Department of Pediatrics (MB), Bone Marrow Transplantation Center, Tunis, Tunisia; Department of Pediatrics (TSAF, EAI, GEG, MAAS, Mofareh Al-Zahrani), King Fahad Medical City, Riyadh, Saudi Arabia; Department of Paediatrics (AJP), University of Oxford, NIHR Oxford Biomedical Research Centre, Children’s Hospital, Oxford, United Kingdom; Department of Pediatrics (BM, BWL), National University of Singapore, Singapore; Department of Pediatrics (Mohammed Al-Zahrani), Security Forces Hospital, Riyadh, Saudi Arabia; and Pediatric Infectious Disease Research Center (NP), Tehran University of Medical Sciences, Tehran, Iran
| |
Collapse
|
15
|
Ben-Mustapha I, Ben-Farhat K, Guirat-Dhouib N, Dhemaied E, Larguèche B, Ben-Ali M, Chemli J, Bouguila J, Ben-Mansour L, Mellouli F, Khemiri M, Béjaoui M, Barbouche MR. Clinical, Immunological and Genetic Findings of a Large Tunisian Series of Major Histocompatibility Complex Class II Deficiency Patients. J Clin Immunol 2013; 33:865-70. [DOI: 10.1007/s10875-013-9863-8] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2012] [Accepted: 01/02/2013] [Indexed: 11/29/2022]
|
16
|
Ben-Ali M, Corre B, Manry J, Barreiro LB, Quach H, Boniotto M, Pellegrini S, Quintana-Murci L. Functional characterization of naturally occurring genetic variants in the human TLR1-2-6 gene family. Hum Mutat 2011; 32:643-52. [DOI: 10.1002/humu.21486] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
|
17
|
Pothlichet J, Burtey A, Kubarenko AV, Caignard G, Solhonne B, Tangy F, Ben-Ali M, Quintana-Murci L, Heinzmann A, Chiche JD, Vidalain PO, Weber ANR, Chignard M, Si-Tahar M. Study of human RIG-I polymorphisms identifies two variants with an opposite impact on the antiviral immune response. PLoS One 2009; 4:e7582. [PMID: 19859543 PMCID: PMC2762520 DOI: 10.1371/journal.pone.0007582] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2009] [Accepted: 10/01/2009] [Indexed: 01/30/2023] Open
Abstract
BACKGROUND RIG-I is a pivotal receptor that detects numerous RNA and DNA viruses. Thus, its defectiveness may strongly impair the host antiviral immunity. Remarkably, very little information is available on RIG-I single-nucleotide polymorphisms (SNPs) presenting a functional impact on the host response. METHODOLOGY/PRINCIPAL FINDINGS Here, we studied all non-synonymous SNPs of RIG-I using biochemical and structural modeling approaches. We identified two important variants: (i) a frameshift mutation (P(229)fs) that generates a truncated, constitutively active receptor and (ii) a serine to isoleucine mutation (S(183)I), which drastically inhibits antiviral signaling and exerts a down-regulatory effect, due to unintended stable complexes of RIG-I with itself and with MAVS, a key downstream adapter protein. CONCLUSIONS/SIGNIFICANCE Hence, this study characterized P(229)fs and S(183)I SNPs as major functional RIG-I variants and potential genetic determinants of viral susceptibility. This work also demonstrated that serine 183 is a residue that critically regulates RIG-I-induced antiviral signaling.
Collapse
Affiliation(s)
- Julien Pothlichet
- Institut Pasteur, Unité de Défense Innée et Inflammation, Paris, France
- Inserm, U874, Paris, France
| | - Anne Burtey
- Institut Pasteur, Unité de Défense Innée et Inflammation, Paris, France
- Inserm, U874, Paris, France
| | - Andriy V. Kubarenko
- Deutsches Krebsforschungszentrum, Toll-Like Receptors and Cancer, Heidelberg, Germany
| | - Gregory Caignard
- Institut Pasteur, Laboratoire de Génomique Virale et Vaccination, Paris, France
| | - Brigitte Solhonne
- Institut Pasteur, Unité de Défense Innée et Inflammation, Paris, France
- Inserm, U874, Paris, France
| | - Frédéric Tangy
- Institut Pasteur, Laboratoire de Génomique Virale et Vaccination, Paris, France
| | - Meriem Ben-Ali
- Institut Pasteur, Unité postulante de Génétique Evolutive Humaine, Paris, France
- CNRS, URA3012, Paris, France
| | - Lluis Quintana-Murci
- Institut Pasteur, Unité postulante de Génétique Evolutive Humaine, Paris, France
- CNRS, URA3012, Paris, France
| | - Andrea Heinzmann
- Centre for Pediatrics and Adolescent Medicine, University of Freiburg, Freiburg, Germany
| | - Jean-Daniel Chiche
- Assistance Publique-Hôpitaux de Paris, Hôpital Cochin, Unité de Réanimation Médicale, Paris, France
| | | | - Alexander N. R. Weber
- Deutsches Krebsforschungszentrum, Toll-Like Receptors and Cancer, Heidelberg, Germany
| | - Michel Chignard
- Institut Pasteur, Unité de Défense Innée et Inflammation, Paris, France
- Inserm, U874, Paris, France
| | - Mustapha Si-Tahar
- Institut Pasteur, Unité de Défense Innée et Inflammation, Paris, France
- Inserm, U874, Paris, France
- Assistance Publique-Hôpitaux de Paris, Hôpital Cochin, Unité de Réanimation Médicale, Paris, France
| |
Collapse
|
18
|
Ben-Ali M, Barbouche MR, Bousnina S, Chabbou A, Dellagi K. Toll-like receptor 2 Arg677Trp polymorphism is associated with susceptibility to tuberculosis in Tunisian patients. Clin Diagn Lab Immunol 2005; 11:625-6. [PMID: 15138193 PMCID: PMC404573 DOI: 10.1128/cdli.11.3.625-626.2004] [Citation(s) in RCA: 167] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Toll-like receptor 2 (TLR2) is critical in the immune response to mycobacteria. Herein, we report that the frequency of a human TLR2 Arg677Trp polymorphism (C2029T nucleotide substitution) in tuberculosis patients in Tunisia is significantly higher than in healthy controls (P < 0.0001). This finding suggests that this polymorphism could be a risk factor for tuberculosis.
Collapse
Affiliation(s)
- Meriem Ben-Ali
- Laboratoire d'Immunologie, de Vaccinologie et de Génétique Moléculaire, Institut Pasteur de Tunis, 13, Place Pasteur, 1002 Tunis, Tunisia
| | | | | | | | | |
Collapse
|