Dysregulation of CD30+ T cells by leukemia impairs isotype switching in normal B cells.
Komentáře: | Erratum in: Nat Immunol 2001 Apr;2(4):368. |
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Grant Information: | AR40908 United States AR NIAMS NIH HHS; R01 AR040908 United States AR NIAMS NIH HHS; T32 AI 07621 United States AI NIAID NIH HHS; T32 AI007621 United States AI NIAID NIH HHS; R56 AI045011 United States AI NIAID NIH HHS; AG 13910 United States AG NIA NIH HHS; R01 AI045011 United States AI NIAID NIH HHS; AI 45011 United States AI NIAID NIH HHS |
Substance Nomenclature: | 0 (CD28 Antigens) 0 (CD30 Ligand) 0 (CD40 Antigens) 0 (CD8 Antigens) 0 (DNA Primers) 0 (Immunoglobulin A) 0 (Immunoglobulin G) 0 (Ki-1 Antigen) 0 (Membrane Glycoproteins) 0 (OX40 Ligand) 0 (Receptors, Tumor Necrosis Factor) 0 (TNFSF4 protein, human) 0 (TNFSF8 protein, human) 207137-56-2 (Interleukin-4) |
Entry Date(s): | Date Created: 20010329 Date Completed: 20010412 Latest Revision: 20240610 |
Update Code: | 20240610 |
PubMed Central ID: | PMC4621971 |
DOI: | 10.1038/84254 |
PMID: | 11175813 |
Autor: | Cerutti A; Division of Molecular Immunology, Department of Pathology, Weill Medical College of Cornell University, 1300 York Avenue, New York, NY 10021, USA. acerutti@med.cornell.edu, Kim EC, Shah S, Schattner EJ, Zan H, Schaffer A, Casali P |
Jazyk: | angličtina |
Zdroj: | Nature immunology [Nat Immunol] 2001 Feb; Vol. 2 (2), pp. 150-6. |
DOI: | 10.1038/84254 |
Abstrakt: | Chronic lymphocytic leukemia (CLL) is associated with impaired immunoglobulin (Ig) class-switching from IgM to IgG and IgA, a defect that leads to recurrent infections. When activated in the presence of leukemic CLL B cells, T cells rapidly up-regulate CD30 through an OX40 ligand and interleukin 4 (IL-4)-dependent mechanism. These leukemia-induced CD30+ T cells inhibit CD40 ligand (CD40L)-mediated S mu-->S gamma and S mu-->S alpha class-switch DNA recombination (CSR) by engaging CD30 ligand (CD30L), a molecule that interferes with the assembly of the CD40-tumor necrosis factor receptor-associated factor (TRAF) complex in nonmalignant IgD+ B cells. In addition, engagement of T cell CD30 by CD30L on neoplastic CLL B cells down-regulates the CD3-induced expression of CD40L. These findings indicate that, in CLL, abnormal CD30-CD30L interaction impairs IgG and IgA production by interfering with the CD40-mediated differentiation of nonmalignant B cells. |
Databáze: | MEDLINE |
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