Abstract:
:Interleukins play a role in the process of T-cell development and, like other cytokines, seem able to modulate apoptosis. Interleukin-2 has been reported to inhibit apoptotic cell death of thymocytes induced in vitro by either activation of CD3/TCR complex or treatment with glucocorticoid hormone. We demonstrate here that IL-2 can provoke DNA fragmentation and cell death of CD4+ CD8+ mouse thymocytes by activating an endogenous apoptotic pathway. Thymocytes, incubated with high IL-2 concentrations in vitro, showed the morphological characteristics of apoptotic cells, including reduction in nuclear size, derangement in chromatin structure, and DNA fragmentation in oligonucleosomal subunits. Inhibition of mRNA and protein synthesis and addition of the PKC-inhibitor H-7, Zn2+ ions, and IL-4 counteracted the IL-2 effect. These data suggest that high IL-2 concentrations may induce an active process of cell death on mouse thymocytes in vitro.
journal_name
Cell Immunoljournal_title
Cellular immunologyauthors
Migliorati G,Nicoletti I,Pagliacci MC,D'Adamio L,Riccardi Cdoi
10.1006/cimm.1993.1005subject
Has Abstractpub_date
1993-01-01 00:00:00pages
52-61issue
1eissn
0008-8749issn
1090-2163pii
S0008-8749(83)71005-1journal_volume
146pub_type
杂志文章abstract::CCR5 is a chemokine receptor expressed by T cells and macrophages, which also functions as the principal coreceptor for macrophage (M)-tropic HIV-1 strains to enter the host cells. In this study, we aim to better understand the ligand-binding profiles of CCR5 and the chemokine-receptor usage on leukocyte cells. We fou...
journal_title:Cellular immunology
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journal_title:Cellular immunology
pub_type: 杂志文章
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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
pub_type: 杂志文章
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更新日期:2011-01-01 00:00:00
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journal_title:Cellular immunology
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doi:10.1016/0008-8749(92)90319-k
更新日期:1992-11-01 00:00:00
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journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1006/cimm.1995.0012
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journal_title:Cellular immunology
pub_type: 杂志文章
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更新日期:1992-04-01 00:00:00
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pub_type: 杂志文章,评审
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更新日期:1990-11-01 00:00:00
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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:1992-06-01 00:00:00
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journal_title:Cellular immunology
pub_type: 杂志文章
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