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Westermann-Clark E, Meehan CA, Meyer AK, Dasso JF, Amre D, Ellison M, Patel B, Betensky M, Hauk CI, Mayer J, Metts J, Leiding JW, Sriaroon P, Kumar A, Ayala I, Walter JE. Primary Immunodeficiency in Children With Autoimmune Cytopenias: Retrospective 154-Patient Cohort. Front Immunol 2021; 12:649182. [PMID: 33968040 PMCID: PMC8100326 DOI: 10.3389/fimmu.2021.649182] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Accepted: 03/01/2021] [Indexed: 11/13/2022] Open
Abstract
Background Primary immunodeficiency is common among patients with autoimmune cytopenia. Objective The purpose of this study is to retrospectively identify key clinical features and biomarkers of primary immunodeficiency (PID) in pediatric patients with autoimmune cytopenias (AIC) so as to facilitate early diagnosis and targeted therapy. Methods Electronic medical records at a pediatric tertiary care center were reviewed. We selected 154 patients with both AIC and PID (n=17), or AIC alone (n=137) for inclusion in two cohorts. Immunoglobulin levels, vaccine titers, lymphocyte subsets (T, B and NK cells), autoantibodies, clinical characteristics, and response to treatment were recorded. Results Clinical features associated with AIC-PID included splenomegaly, short stature, and recurrent or chronic infections. PID patients were more likely to have autoimmune hemolytic anemia (AIHA) or Evans syndrome than AIC-only patients. The AIC-PID group was also distinguished by low T cells (CD3 and CD8), low immunoglobulins (IgG and IgA), and higher prevalence of autoantibodies to red blood cells, platelets or neutrophils. AIC diagnosis preceded PID diagnosis by 3 years on average, except among those with partial DiGeorge syndrome. AIC-PID patients were more likely to fail first-line treatment. Conclusions AIC patients, especially those with Evans syndrome or AIHA, should be evaluated for PID. Lymphocyte subsets and immune globulins serve as a rapid screen for underlying PID. Early detection of patients with comorbid PID and AIC may improve treatment outcomes. Prospective studies are needed to confirm the diagnostic clues identified and to guide targeted therapy.
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Affiliation(s)
- Emma Westermann-Clark
- Division of Allergy and Immunology, Department of Pediatrics, Morsani College of Medicine, University of South Florida, Tampa, FL, United States.,Division of Allergy and Immunology, Department of Medicine, Morsani College of Medicine, University of South Florida, Tampa, FL, United States
| | - Cristina Adelia Meehan
- Division of Allergy and Immunology, Department of Pediatrics, Morsani College of Medicine, University of South Florida, Tampa, FL, United States
| | - Anna K Meyer
- Division of Allergy and Immunology, Department of Pediatrics, National Jewish Health, Denver, CO, United States.,Graduate Medical Education, University of Colorado, Denver, CO, United States
| | - Joseph F Dasso
- Division of Allergy and Immunology, Department of Pediatrics, Morsani College of Medicine, University of South Florida, Tampa, FL, United States.,Department of Biology, University of Tampa, Tampa, FL, United States
| | - Devendra Amre
- Division of Allergy and Immunology, Department of Pediatrics, Morsani College of Medicine, University of South Florida, Tampa, FL, United States
| | - Maryssa Ellison
- Division of Allergy and Immunology, Department of Pediatrics, Morsani College of Medicine, University of South Florida, Tampa, FL, United States
| | - Bhumika Patel
- Division of Allergy and Immunology, Department of Pediatrics, Morsani College of Medicine, University of South Florida, Tampa, FL, United States
| | - Marisol Betensky
- Cancer and Blood Disorders Institute, Johns Hopkins All Children's Hospital, St Petersburg, FL, United States.,Division of Hematology, Department of Pediatrics Johns Hopkins All Children's Hospital, St. Petersburg, FL, United States
| | - Charles Isaac Hauk
- Cancer and Blood Disorders Institute, Johns Hopkins All Children's Hospital, St Petersburg, FL, United States
| | - Jennifer Mayer
- Cancer and Blood Disorders Institute, Johns Hopkins All Children's Hospital, St Petersburg, FL, United States
| | - Jonathan Metts
- Cancer and Blood Disorders Institute, Johns Hopkins All Children's Hospital, St Petersburg, FL, United States
| | - Jennifer W Leiding
- Division of Allergy and Immunology, Department of Pediatrics, Morsani College of Medicine, University of South Florida, Tampa, FL, United States.,Division of Allergy/Immunology, Department of Pediatrics Johns Hopkins All Children's Hospital, St. Petersburg, FL, United States
| | - Panida Sriaroon
- Division of Allergy and Immunology, Department of Pediatrics, Morsani College of Medicine, University of South Florida, Tampa, FL, United States.,Division of Allergy/Immunology, Department of Pediatrics Johns Hopkins All Children's Hospital, St. Petersburg, FL, United States
| | - Ambuj Kumar
- Research Methodology and Biostatistics Core, Morssani College of Medicine, University of South Florida, Tampa, FL, United States
| | - Irmel Ayala
- Cancer and Blood Disorders Institute, Johns Hopkins All Children's Hospital, St Petersburg, FL, United States.,Division of Hematology, Department of Pediatrics Johns Hopkins All Children's Hospital, St. Petersburg, FL, United States
| | - Jolan E Walter
- Division of Allergy and Immunology, Department of Pediatrics, Morsani College of Medicine, University of South Florida, Tampa, FL, United States.,Division of Allergy/Immunology, Department of Pediatrics Johns Hopkins All Children's Hospital, St. Petersburg, FL, United States.,Division of Allergy and Immunology, Massachusetts General Hospital for Children, Boston, MA, United States
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