Subject:
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N4i 1: Pathogenesis and modulation of inflammation NCMLS 2: Immune Regulation ONCOL 1: Hereditary cancer and cancer-related syndromes ONCOL 2: Age-related aspects of cancer ONCOL 3: Translational research UMCN 1.2: Molecular diagnosis, prognosis and monitoring UMCN 1.4: Immunotherapy, gene therapy and transplantation UMCN 1.4: Immunotherapy, gene therapy and transplantation |
Abstract:
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Severe combined immunodeficiencies (SCID) are commonly fatal early in life. Adequate diagnosis and rapid institution of treatment, such as allogeneic stem cell transplantation (SCT), is essential. Several studies demonstrated that reconstitution of B-cell function after SCT is better in B-positive SCID than in B-negative SCID. We demonstrate that B-cell reconstitution in a B-negative SCID patient due to an Artemis mutation required the elimination of the autologous precursor-B-cells in bone marrow, probably to create physical space in the precursor-B-cell niches. Apparently, occupation of the precursor-B-cell niches is a potential dominant factor influencing repopulation of a functional B-cell compartment in B-negative SCID.
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