Abstract:
:Experimental autoimmune encephalomyelitis was induced in a Lewis rat by sensitization with synthetic peptide GP68-86, representing the 68-86 sequence of guinea pig myelin basic protein (GPMBP). To delineate T cell determinants of GP68-86, lymph node cells from this rat were activated in culture with GP68-86 and were fused with cells of the mouse thymoma BW5147. The resultant hybrids were cloned by limiting dilution and screened for GP68-86-evoked secretion of IL2 in the presence of rat splenocytes. Twelve T cell hybrids derived in this manner were tested for reactivity to different heterologous species of MBP as well as to substituted or truncated analogs of GP68-86. The hybrids generally exhibited potent reactivity to GPMBP but differed markedly in their reactivity to autologous rat MBP (RMBP). A few exceptional hybrids exhibited crossreactivity with peptides in which native serine75 or serine80 residues of GPMBP were substituted with either alanine75 (A75) or proline80 (P80) residues. These cross-reactive hybrids also possessed high levels of anti-RMBP reactivity. The remaining hybrids were unresponsive to the A75 and P80 substituted peptides and, with one exception, had relatively low levels of anti-RMBP reactivity. Unique reactivity patterns were also revealed by hybrid responses to peptides having modified C-terminal 84-86 residues. In summary, the contrasting fine specificities of different hybrids indicated that several distinct clones of T cells mediate the immune response of Lewis rats against the 68-86 region of GPMBP. Furthermore, heterogeneity in the hybrid response to "self" RMBP may reflect substantial differences in encephalitogenic potency of the T cell clones from which these hybrids were derived.
journal_name
Cell Immunoljournal_title
Cellular immunologyauthors
Mannie MD,Paterson PY,U'Prichard DC,Thomas DWdoi
10.1016/0008-8749(89)90099-3subject
Has Abstractpub_date
1989-09-01 00:00:00pages
534-47issue
2eissn
0008-8749issn
1090-2163pii
0008-8749(89)90099-3journal_volume
122pub_type
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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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journal_title:Cellular immunology
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journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1006/cimm.1994.1036
更新日期:1994-02-01 00:00:00
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journal_title:Cellular immunology
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更新日期:1996-02-01 00:00:00
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pub_type: 杂志文章,评审
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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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更新日期:1986-12-01 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
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更新日期:1985-04-01 00:00:00
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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
pub_type: 杂志文章
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更新日期:2016-02-01 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
doi:10.1016/0008-8749(91)90322-3
更新日期:1991-05-01 00:00:00
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pub_type: 杂志文章
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journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/0008-8749(92)90213-9
更新日期:1992-04-01 00:00:00
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journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1006/cimm.1994.1056
更新日期:1994-03-01 00:00:00
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journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/0008-8749(86)90098-5
更新日期:1986-12-01 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
doi:10.1016/0008-8749(92)90009-e
更新日期:1992-08-01 00:00:00
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