Relevance of lymphocyte proliferation to PHA in severe combined immunodeficiency (SCID) and T cell lymphopenia
Copyright © 2024 Elsevier Inc. All rights reserved.
Publié dans: | Clinical immunology (Orlando, Fla.). - 1999. - 261(2024) vom: 10. Apr., Seite 109942 |
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Auteur principal: | |
Autres auteurs: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
Format: | Article en ligne |
Langue: | English |
Publié: |
2024
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Accès à la collection: | Clinical immunology (Orlando, Fla.) |
Sujets: | Journal Article Research Support, N.I.H., Extramural Mitogen PHA PIDTC SCID Severe combined immunodeficiency T-cell lymphopenia T-cell proliferation |
Résumé: | Copyright © 2024 Elsevier Inc. All rights reserved. Severe combined immunodeficiency (SCID) is characterized by a severe deficiency in T cell numbers. We analyzed data collected (n = 307) for PHA-based T cell proliferation from the PIDTC SCID protocol 6901, using either a radioactive or flow cytometry method. In comparing the two groups, a smaller number of the patients tested by flow cytometry had <10% of the lower limit of normal proliferation as compared to the radioactive method (p = 0.02). Further, in patients with CD3+ T cell counts between 51 and 300 cells/μL, there was a higher proliferative response with the PHA flow assay compared to the 3H-T assay (p < 0.0001), suggesting that the method of analysis influences the resolution and interpretation of PHA results. Importantly, we observed many SCID patients with profound T cell lymphopenia having normal T cell proliferation when assessed by flow cytometry. We recommend this test be considered only as supportive in the diagnosis of typical SCID |
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Description: | Date Completed 18.03.2024 Date Revised 25.04.2024 published: Print-Electronic Citation Status MEDLINE |
ISSN: | 1521-7035 |
DOI: | 10.1016/j.clim.2024.109942 |