Abstract:
:Histidine-proline-rich glycoprotein (HPRG) is a plasma protein which binds to a specific receptor on T-lymphocytes and represses T-cell activation and proliferation. In the presence of Concanavalin A (Con A), HPRG causes human T-lymphoblastic MOLT-3 cells and a fraction of normal human peripheral blood lymphocytes to attach to the culture dish and significantly change morphology by either extending processes or becoming elongated at the poles, respectively. HPRG and Con A are just as effective at inducing MOLT-3 attachment in a soluble or an immobilized form. MOLT-3 cell attachment is specific for HPRG, dose-dependent, and reversible in 72 hr. Only certain T-cell mitogenic lectins, Con A and phytohemagglutinin, are effective at stimulating adherence. Mannose, glucose, fucose, and N-acetylglucosamine inhibit HPRG-induced MOLT-3 cell attachment to different degrees, with methyl alpha-D-mannopyranoside being the most potent inhibitor. We propose that in vivo HPRG together with a naturally expressed lectin induces T-lymphocyte adhesion to initiate cell migration to sites of inflammation.
journal_name
Cell Immunoljournal_title
Cellular immunologyauthors
Lamb-Wharton RJ,Morgan WTdoi
10.1006/cimm.1993.1311subject
Has Abstractpub_date
1993-12-01 00:00:00pages
544-55issue
2eissn
0008-8749issn
1090-2163pii
S0008-8749(83)71311-0journal_volume
152pub_type
杂志文章abstract::Dendritic cells (DCs) link the sensing of the environment by the innate immune system to the initiation of adaptive immune responses. Accordingly, DCs are considered to be a major target in the development of immunomodulating compounds. In this study, the effect of niclosamide, a Food and Drug Administration-approved ...
journal_title:Cellular immunology
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journal_title:Cellular immunology
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journal_title:Cellular immunology
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journal_title:Cellular immunology
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pub_type: 杂志文章
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更新日期:1983-10-01 00:00:00
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journal_title:Cellular immunology
pub_type: 杂志文章
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journal_title:Cellular immunology
pub_type: 杂志文章
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更新日期:1994-09-01 00:00:00
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journal_title:Cellular immunology
pub_type: 杂志文章
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journal_title:Cellular immunology
pub_type: 杂志文章
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journal_title:Cellular immunology
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journal_title:Cellular immunology
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journal_title:Cellular immunology
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doi:10.1016/j.cellimm.2010.12.002
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