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Cohort of Iranian Patients With Congenital Agammaglobulinemia: Mutation Analysis and Novel Gene Defects Publisher Pubmed



Abolhassani H1, 2 ; Vitali M3 ; Lougaris V3 ; Giliani S3 ; Parvaneh N1 ; Parvaneh L1 ; Mirminachi B1 ; Cheraghi T4 ; Khazaei H5 ; Mahdaviani SA6 ; Kiaei F1 ; Tavakolinia N1 ; Mohammadi J7 ; Negahdari B8 Show All Authors
Authors
  1. Abolhassani H1, 2
  2. Vitali M3
  3. Lougaris V3
  4. Giliani S3
  5. Parvaneh N1
  6. Parvaneh L1
  7. Mirminachi B1
  8. Cheraghi T4
  9. Khazaei H5
  10. Mahdaviani SA6
  11. Kiaei F1
  12. Tavakolinia N1
  13. Mohammadi J7
  14. Negahdari B8
  15. Rezaei N1
  16. Hammarstrom L2
  17. Plebani A3
  18. Aghamohammadi A1
Show Affiliations
Authors Affiliations
  1. 1. Research Center for Immunodeficiencies, Pediatrics Center of Excellence, Children's Medical Center Hospital, Tehran University of Medical Sciences, 62 Qarib St., Keshavarz Blvd., Tehran, 14194, Iran
  2. 2. Division of Clinical Immunology, Department of Laboratory Medicine, Karolinska Institutet, Karolinska University Hospital Huddinge, Stockholm, Sweden
  3. 3. Pediatrics Clinic and Institute for Molecular Medicine A. Nocivelli, Department of Clinical and Experimental Sciences, University of Brescia, Spedali Civili, Brescia, Italy
  4. 4. Department of Pediatrics, Shahrivar Children's Hospital, Guilan University of Medical Sciences, Rasht, Iran
  5. 5. Department of Immunology and Hematology, Zahedan Medical Sciences University, Zahedan, Iran
  6. 6. Pediatric Respiratory Diseases Research Center, National Research Institute of Tuberculosis and Lung Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
  7. 7. Department of Life Science, Faculty of New Science and Technology, University of Tehran, Tehran, Iran
  8. 8. School of Advanced Technologies in Medicine, Department of Medical Biotechnology, Tehran University of Medical Sciences, Tehran, Iran

Source: Expert Review of Clinical Immunology Published:2016


Abstract

Objectives: Impairment in early B-cell development can cause a predominantly antibody deficiency with severe depletion of peripheral B-cells. Mutations in the gene encoding for Brutons-tyrosine-kinase (BTK) and the components of the pre-B-cell receptor complex or downstream signaling molecules have been related to this defect in patients with agammaglobulinemia. Methods: Iranian patients with congenital agammaglobulinemia were included and the correlation between disease-causing mutations and parameters such as clinical and immunologic phenotypes were evaluated in available patients. Results: Out of 87 patients, a molecular investigation was performed on 51 patients leading to identification of 39 cases with BTK (1 novel mutation), 5 cases of μ-heavy chain (3 novel mutations) and 1 case of Igα-deficiencies. Conclusion: Although there is no comprehensive correlation between type of responsible BTK mutation and severity of clinical phenotype, our data suggest that BTK-deficient and autosomal recessive agammaglobulinemia patients differ significantly regarding clinical/immunologic characteristics. © 2016 Taylor & Francis.
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