Abstract:
:Several recent studies have identified eosinophils as a cellular source of various cytokines, indicating that eosinophils play not only an effector role, but also a regulatory role within the allergic inflammatory cell network. In this study, we demonstrate that eosinophils can generate and secrete monocyte chemoattractant protein-1 (MCP-1), a prototype of C-C chemokines. Eosinophils generated immunoreactive MCP-1 in response to such diverse stimuli as C5a, formyl-methionyl-leucyl-phenylalanine (FMLP) and ionomycin, but MCP-1 production was not induced by interleukin (IL)-1 or tumor necrosis factor-alpha. C5a- and FMLP-induced eosinophil MCP-1 production was absolutely dependent on pretreatment with cytochalasin B. Eosinophils elaborated significantly more MCP-1 than neutrophils. Immunoreactive MCP-1 was detected at 6 h of incubation with C5a or FMLP. Expression of MCP-1 mRNA reached a maximum within the first 3 h after stimulation and then declined rapidly to a very low and stable level by 18 h. Pretreatment with IL-5 markedly amplified C5a-induced MCP-1 production, and the enhancement occurred at the pretranslational level. Eosinophil-active chemokines such as eotaxin failed to induce MCP-1 generation, even when eosinophils were primed by IL-5. Since MCP-1 exerts a potent histamine-releasing effect on human basophils, our results indicate that eosinophils may regulate basophil mediator release with possible consequent contribution to the pathogenesis of allergic inflammation via a paracrine mechanism.
journal_name
Eur J Immunoljournal_title
European journal of immunologyauthors
Izumi S,Hirai K,Miyamasu M,Takahashi Y,Misaki Y,Takaishi T,Morita Y,Matsushima K,Ida N,Nakamura H,Kasahara T,Ito Kdoi
10.1002/eji.1830270404subject
Has Abstractpub_date
1997-04-01 00:00:00pages
816-24issue
4eissn
0014-2980issn
1521-4141journal_volume
27pub_type
杂志文章abstract::The monoclonal antibody OKT3 can induce T suppressor cells of the in vitro antibody response when used at concentrations as low as 10 ng/ml and in cultures containing as few as 4% OKT3-pretreated T cells. These suppressor cells are radioresistant, cyclosporin sensitive and belong to the T4 as well as the T8 subpopulat...
journal_title:European journal of immunology
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doi:10.1002/eji.1830150504
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journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830220246
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journal_title:European journal of immunology
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journal_title:European journal of immunology
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doi:10.1002/eji.1830241024
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journal_title:European journal of immunology
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更新日期:2005-04-01 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
pub_type: 杂志文章
doi:10.1002/eji.200425857
更新日期:2005-06-01 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
doi:10.1002/eji.1830090512
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journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830230415
更新日期:1993-04-01 00:00:00
abstract::Antigen-independent adhesion of CD4+ T lymphocytes to Epstein-Barr virus (EBV)-transformed B cells is mediated by CD2/lymphocyte function-associated antigen (LFA)-3 and LFA-1/intracellular adhesion molecule (ICAM)-1. Although some anti-CD4 antibodies block the antigen-independent adhesion of CD4+ T lymphocytes, the CD...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830200326
更新日期:1990-03-01 00:00:00
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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.1830230243
更新日期:1993-02-01 00:00:00
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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.1830080703
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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:1994-04-01 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
pub_type: 杂志文章
doi:10.1002/(SICI)1521-4141(199901)29:01<284::AID-IMMU
更新日期:1999-01-01 00:00:00
abstract::Resistance and susceptibility to the intestinal nematode Trichuris muris has been shown to be dependent upon the induction of T helper type 2 (Th2) or Th1 cells, respectively. This study demonstrates that in a normally resistant strain of mouse, i.e. BALB/K which mounts a dominant Th2 response, sub-threshold levels of...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830241230
更新日期:1994-12-01 00:00:00
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journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830251240
更新日期:1995-12-01 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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doi:10.1002/eji.1830170820
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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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更新日期:2005-05-01 00:00:00