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Ozturk E, Catak MC, Kiykim A, Baser D, Bilgic Eltan S, Yalcin K, Kasap N, Nain E, Bulutoglu A, Akgun G, Can Y, Sefer AP, Babayeva R, Caki-Kilic S, Tezcan Karasu G, Yesilipek A, Ozen A, Karakoc-Aydiner E, Baris S. Clinical and Laboratory Factors Affecting the Prognosis of Severe Combined Immunodeficiency. J Clin Immunol 2022; 42:1036-1050. [PMID: 35451701 DOI: 10.1007/s10875-022-01262-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Accepted: 03/28/2022] [Indexed: 10/18/2022]
Abstract
PURPOSE Severe combined immunodeficiency (SCID) is one of the most severe forms of inborn errors of immunity characterized by absence or loss of function in T cells. The long-term outcomes of all forms of SCID have been evaluated in a limited number of studies. We aimed to evaluate the pre- and post-transplant manifestations of SCID patients and determine the factors affecting the survival of patients. METHODS We included 54 SCID patients (classical SCID, Omenn syndrome, atypical SCID (AS)) in this study. We evaluated the clinical presentation, infections, and outcome of hematopoietic stem cell transplantation (HSCT). Lymphocyte subsets and T-cell receptor (TCR) repertoire were analyzed by flow cytometry. RESULTS The median age at diagnosis was 5 (range: 3-24) months and follow-up time was 25 (range: 5-61) months. Symptom onset and diagnostic ages were significantly higher in AS compared to others (p = 0.001; p < 0.001). The most common SCID phenotype was T-B-NK + , and mutations in recombination-activating genes (RAG1/2) were the prominent genetic defect among patients. The overall survival (OS) rate was 83.3% after HSCT, higher than in non-transplanted patients (p = 0.001). Peripheral blood stem cell sources and genotypes other than RAG had a significant favorable impact on CD4+ T cells immune reconstitution after transplantation (p = 0.044, p = 0.035; respectively). Gender matching transplantations from human leukocyte antigen (HLA)-identical and non-identical donors and using peripheral blood stem cell source yielded higher B-cell reconstitution (p = 0.002, p = 0.028; respectively). Furthermore, receiving a conditioning regimen provided better B-cell reconstitution and chimerism (p = 0.003, p = 0.001). Post-transplant TCR diversity was sufficient in the patients and showed an equal distribution pattern as healthy controls. The OS rate was lower in patients who underwent transplant with active infection or received stem cells from mismatched donors (p = 0.030, p = 0.015; respectively). CONCLUSION This study identifies diagnostic and therapeutic approaches predictive of favorable outcomes for patients with SCID.
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Affiliation(s)
- Elif Ozturk
- Faculty of Medicine, Division of Pediatric Allergy and Immunology, Marmara University, Fevzi Çakmak Mah. No: 41, Pendik, Istanbul, Turkey.,Istanbul Jeffrey Modell Diagnostic and Research Center for Primary Immunodeficiencies, Istanbul, Turkey
| | - Mehmet Cihangir Catak
- Faculty of Medicine, Division of Pediatric Allergy and Immunology, Marmara University, Fevzi Çakmak Mah. No: 41, Pendik, Istanbul, Turkey.,Istanbul Jeffrey Modell Diagnostic and Research Center for Primary Immunodeficiencies, Istanbul, Turkey
| | - Ayca Kiykim
- Faculty of Medicine, Pediatric Allergy and Immunology, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Dilek Baser
- Faculty of Medicine, Division of Pediatric Allergy and Immunology, Marmara University, Fevzi Çakmak Mah. No: 41, Pendik, Istanbul, Turkey.,Istanbul Jeffrey Modell Diagnostic and Research Center for Primary Immunodeficiencies, Istanbul, Turkey
| | - Sevgi Bilgic Eltan
- Faculty of Medicine, Division of Pediatric Allergy and Immunology, Marmara University, Fevzi Çakmak Mah. No: 41, Pendik, Istanbul, Turkey.,Istanbul Jeffrey Modell Diagnostic and Research Center for Primary Immunodeficiencies, Istanbul, Turkey
| | - Koray Yalcin
- Pediatric Bone Marrow Transplantation Unit, Medical Park Goztepe Hospital, Istanbul, Turkey
| | - Nurhan Kasap
- Faculty of Medicine, Division of Pediatric Allergy and Immunology, Marmara University, Fevzi Çakmak Mah. No: 41, Pendik, Istanbul, Turkey.,Istanbul Jeffrey Modell Diagnostic and Research Center for Primary Immunodeficiencies, Istanbul, Turkey
| | - Ercan Nain
- Faculty of Medicine, Division of Pediatric Allergy and Immunology, Marmara University, Fevzi Çakmak Mah. No: 41, Pendik, Istanbul, Turkey.,Istanbul Jeffrey Modell Diagnostic and Research Center for Primary Immunodeficiencies, Istanbul, Turkey
| | - Alper Bulutoglu
- Faculty of Medicine, Division of Pediatric Allergy and Immunology, Marmara University, Fevzi Çakmak Mah. No: 41, Pendik, Istanbul, Turkey.,Istanbul Jeffrey Modell Diagnostic and Research Center for Primary Immunodeficiencies, Istanbul, Turkey
| | - Gamze Akgun
- Faculty of Medicine, Division of Pediatric Allergy and Immunology, Marmara University, Fevzi Çakmak Mah. No: 41, Pendik, Istanbul, Turkey.,Istanbul Jeffrey Modell Diagnostic and Research Center for Primary Immunodeficiencies, Istanbul, Turkey
| | - Yasemin Can
- Faculty of Medicine, Division of Pediatric Allergy and Immunology, Marmara University, Fevzi Çakmak Mah. No: 41, Pendik, Istanbul, Turkey.,Istanbul Jeffrey Modell Diagnostic and Research Center for Primary Immunodeficiencies, Istanbul, Turkey
| | - Asena Pinar Sefer
- Faculty of Medicine, Division of Pediatric Allergy and Immunology, Marmara University, Fevzi Çakmak Mah. No: 41, Pendik, Istanbul, Turkey.,Istanbul Jeffrey Modell Diagnostic and Research Center for Primary Immunodeficiencies, Istanbul, Turkey
| | - Royala Babayeva
- Faculty of Medicine, Division of Pediatric Allergy and Immunology, Marmara University, Fevzi Çakmak Mah. No: 41, Pendik, Istanbul, Turkey.,Istanbul Jeffrey Modell Diagnostic and Research Center for Primary Immunodeficiencies, Istanbul, Turkey
| | - Suar Caki-Kilic
- Division of Pediatric Hematology, Umraniye Education and Research Hospital, University of Health Sciences, Istanbul, Turkey
| | - Gulsun Tezcan Karasu
- Pediatric Bone Marrow Transplantation Unit, Medical Park Goztepe Hospital, Istanbul, Turkey
| | - Akif Yesilipek
- Pediatric Bone Marrow Transplantation Unit, Medical Park Goztepe Hospital, Istanbul, Turkey
| | - Ahmet Ozen
- Faculty of Medicine, Division of Pediatric Allergy and Immunology, Marmara University, Fevzi Çakmak Mah. No: 41, Pendik, Istanbul, Turkey.,Istanbul Jeffrey Modell Diagnostic and Research Center for Primary Immunodeficiencies, Istanbul, Turkey
| | - Elif Karakoc-Aydiner
- Faculty of Medicine, Division of Pediatric Allergy and Immunology, Marmara University, Fevzi Çakmak Mah. No: 41, Pendik, Istanbul, Turkey.,Istanbul Jeffrey Modell Diagnostic and Research Center for Primary Immunodeficiencies, Istanbul, Turkey
| | - Safa Baris
- Faculty of Medicine, Division of Pediatric Allergy and Immunology, Marmara University, Fevzi Çakmak Mah. No: 41, Pendik, Istanbul, Turkey. .,Istanbul Jeffrey Modell Diagnostic and Research Center for Primary Immunodeficiencies, Istanbul, Turkey.
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