Abstract:
:We investigated the efficacy of a combination of anti-CD80 and CD86 (CD80 + 86) monoclonal antibodies (mAb), anti-interleukin (IL)-12 mAb, or both, for prophylaxis in a mouse acute graft-versus-host-disease (GVHD) model. The treatment with a combination of anti-CD80 + 86 mAb efficiently reduced the lethality of GVHD, whereas mAb against either CD80 or CD86 alone had an effect. A delay in lymphocyte reconstitution and GVHD-associated histological changes in organs was observed at 30 days post-bone marrow transplantation (BMT) even in the anti-CD80 + 86 mAb-treated mice, although these manifestations were resolved by 100 days. In vitro, host alloantigen-specific T cell proliferative responses and generation of CTL were significantly reduced by anti-CD80 + 86 treatment. Furthermore, anti-CD80 + 86 mAb preferentially inhibited the production of interferon (IFN)-gamma, but not IL-4 and IL-10, when cultures were assayed at 21 days. Although the anti-IL-12 mAb treatment alone inhibited the generation of cytotoxic T lymphocytes and IFN-gamma production in vitro, administration of anti-IL-12 mAb in vivo reversed the beneficial effects of anti-CD80 + 86 treatment on host survival post-BMT. The adverse effect of anti-IL-12 treatment seems to result from impairment of natural immunity and hematopoiesis, rather than as a consequence of an incomplete blockade of T helper (Th)1 responses. Our results suggest that the prevention of GVHD-induced death results from the efficient blockade of Th1 cell activation by the anti-CD80 + 86 treatment. However, further treatment is required for a complete prevention of GVHD, which seems to be partly mediated by Th2 cells.
journal_name
Eur J Immunoljournal_title
European journal of immunologyauthors
Saito K,Yagita H,Hashimoto H,Okumura K,Azuma Mdoi
10.1002/eji.1830261241subject
Has Abstractpub_date
1996-12-01 00:00:00pages
3098-106issue
12eissn
0014-2980issn
1521-4141journal_volume
26pub_type
杂志文章abstract::We have characterized the peripheral B cell repertoire in T cell-mediated insulin-dependent diabetes mellitus (IDMM) and in B cell-mediated autoimmune idiopathic thrombocytopenic purpura (AITP). The VH6-containing repertoire in adult patients with IDDM or AITP and healthy control subjects was investigated by PCR ampli...
journal_title:European journal of immunology
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更新日期:1998-06-01 00:00:00
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journal_title:European journal of immunology
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journal_title:European journal of immunology
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journal_title:European journal of immunology
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journal_title:European journal of immunology
pub_type: 杂志文章,评审
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journal_title:European journal of immunology
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journal_title:European journal of immunology
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journal_title:European journal of immunology
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journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.200425405
更新日期:2005-05-01 00:00:00
abstract::The specificity and efficiency of endogenous peptides in the HLA class I binding have been investigated by the use of a simple procedure that is based on the serological detection of the folding of HLA class I alpha chains that is induced by the binding to specific peptides in the presence of beta 2 microglobulin. HLA...
journal_title:European journal of immunology
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doi:10.1002/eji.1830220834
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abstract::The atypical chemokine receptor CXCR7 binds the chemokines CXCL12 and CXCL11. The receptor is widely expressed and was shown to tune CXCR12-induced responses of CXCR4. Here, the function of CXCR7 was examined at late stages of human B-cell maturation, when B cells differentiate into Ab-secreting plasmablasts. We ident...
journal_title:European journal of immunology
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doi:10.1002/eji.201343907
更新日期:2014-03-01 00:00:00
abstract::We generated cell hybrids between mouse T cell lymphoma EL4 cells and mouse fibroblast B82 cells (BELIII and BELIV) to examine the expression of T cell receptor (TcR)/CD3 genes and their lymphoid-specific transcription factor genes, which are normally detected in EL4 cells. In BELIII and BELIV, expression of the TcR a...
journal_title:European journal of immunology
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doi:10.1002/eji.1830250947
更新日期:1995-09-01 00:00:00
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journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830261008
更新日期:1996-10-01 00:00:00
abstract::In an effort to derive monoclonal antibodies (mAb) which can induce production of macrophage-activating factor (MAF) by cloned murine cytolytic T lymphocyte (CTL) lines, we have fused spleen cells from a rat immunized with a CTL clone with the nonsecreting mouse myeloma X63-Ag8.653. Three mAb (designated I-22, III-5 a...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830150514
更新日期:1985-05-01 00:00:00
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journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.200324780
更新日期:2004-08-01 00:00:00
abstract::In humans and in BALB/c mice, immune responses to the hormone insulin use evolutionarily related VHV (human) and VHIX (murine) gene families. To determine if these structural relationships include regulatory elements, BALB/c mice were pretreated with autologous immunoglobulin G (IgG) monoclonal antibodies (mAb) that r...
journal_title:European journal of immunology
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journal_title:European journal of immunology
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更新日期:1990-11-01 00:00:00
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journal_title:European journal of immunology
pub_type: 杂志文章
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更新日期:1993-07-01 00:00:00
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journal_title:European journal of immunology
pub_type: 杂志文章
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journal_title:European journal of immunology
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journal_title:European journal of immunology
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journal_title:European journal of immunology
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更新日期:1994-02-01 00:00:00
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journal_title:European journal of immunology
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abstract::Chemokines are chemotactic cytokines with a key role in the control of cell trafficking and positioning under homeostatic and inflammatory conditions. D6 is a promiscuous 7-transmembrane-domain receptor expressed on lymphatic vessels which recognizes most inflammatory, but not homeostatic, CC chemokines. In vitro expe...
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