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Primary Immunodeficiencies (PIDs) are a heterogeneous group of diseases that are now referred to as inborn errors of immunity (IEI). Overall, this report highlights the importance of early genetic diagnosis for the management of BCL10 deficient patients and HSCT as the recommended treatment to cure this disease. Fortunately, hematopoietic stem-cell transplantation (HSCT) cured her. The patient had recurrent respiratory infections since early childhood, and showed a family history of lethal severe infectious diseases. We showed that in addition to the near absence of memory B and T cells previously reported, this patient displays a reduction in NK, γδT, Tregs, and T FH cells. Using mass cytometry coupled with unsupervised clustering and machine learning computational methods, we obtained a thorough characterization of the consequences of BCL10 deficiency in different populations of leukocytes. Here we provide an in-depth description of an additional patient with autosomal recessive complete BCL10 deficiency caused by a nonsense mutation that leads to a loss of expression (K63X). Only two patients with BCL10 deficiency have been reported to date. However, the scarcity of BCL10 deficient patients has prevented gaining detailed knowledge about this genetic disease. The clinical and immunological consequences of deficiencies in some of its components such as CARD9, CARD11, and MALT1 have been elucidated in detail. The CARD-BCL10-MALT1 (CBM) complex is critical for the proper assembly of human immune responses.
19College of Medicine, Alfaisal University, Riyadh, Saudi Arabia. 18Department of Pediatrics, Division of Allergy & Immunology King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia.
17Howard Hughes Medical Institute, New York, NY, United States. 16Imagine Institute, University Paris Descartes, Paris, France. 15St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, The Rockefeller University, New York, NY, United States. 14Department of Immunology, Ophthalmology and ENT, School of Medicine, Complutense University, Madrid, Spain. 13Clinical Immunology Department, San Carlos Clinical Hospital, Madrid, Spain. 12Department of Immunology, 12 de Octubre Hospital, Research Insitute imas12, Complutense University, Madrid, Spain. 11Department of Paediatric Haemato-Oncology and Stem Cell Transplantation, La Paz University Hospital, Madrid, Spain. 10Translational Research in Paediatric Oncology, Haematopoietic Stem Cell Transplantation, Cell Therapy, Instituto de Genética Médica y Molecular (INGEMM)-IdiPAZ, La Paz University Hospital, Madrid, Spain. 9Center for Biomedical Research Network, CIBEres, Madrid, Spain. 8Laboratory of Human Genetics of Infectious Diseases, Necker Branch, Institut National de la Santé et de la Recherche Médicale (INSERM), Paris, France. 7Translational Genomics, Centre for Genomic Medicine, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia. 6Department of Pediatrics, King Saud Medical City Children’s Hospital, Riyadh, Saudi Arabia.
5Division of Molecular Pathogenesis, Department of Pathology, Microbiology, and Immunology, Vanderbilt Center for Immunobiology, Vanderbilt Institute for Infection, Immunology, and Inflammation, Vanderbilt University Medical Center, Nashville, TN, United States. 4Division of Genetic Medicine, Department of Medicine, Vanderbilt Genetics Institute, Vanderbilt University Medical Center, Nashville, TN, United States.
3Interdepartmental Group of Immunodeficiencies, Madrid, Spain. 2Innate Immunity Group, IdiPAZ Institute for Health Research, La Paz Hospital, Madrid, Spain. 1Laboratory of Immunogenetics of Human Diseases, IdiPAZ Institute for Health Research, La Paz Hospital, Madrid, Spain. Recio 3,14, Jean-Laurent Casanova 8,15,16,17, Reem Mohammed 18,19‡, Rubén Martinez-Barricarte 4,5‡ and Rebeca Pérez de Diego 1,2,3*‡ Allende 12, Janet Markle 5,4, Miguel Fernández-Arquero 3,13, Silvia Sánchez-Ramón 3,13, Maria J. Alazami 7, Lazaro Lorenzo 8, Carolina Cubillos-Zapata 2,9, Eduardo López-Collazo 2, Antonio Pérez-Martínez 10,11, Luis M. Pérez-Caraballo 4,5†, Abdulwahab Al–Ayoubi 6, Anas M. Blanca Garcia-Solis 1,2,3†, Ana Van Den Rym 1,2,3†, Jareb J.