Abstract:
:To explore the hypothesis that gammadelta T cells may regulate activated alphabeta T cells, we studied gammadelta T cell responses to alphabeta T cell clones in Multiple Sclerosis (MS) patients who received attenuated autologous autoreactive T cells. We recently conducted a pilot study of T cell vaccination with myelin basic protein reactive T cells in MS. Since T cell vaccination upregulates the anti-vaccine T cell responses, we evaluated gammadelta T cell reactivity towards the vaccine in the vaccinated patients. Lymphocytes were stimulated in vitro with irradiated vaccine cells and the responding lines were checked for the presence of gammadelta T cells. Our data demonstrate that in the majority of vaccinated MS patients gammadelta T cells expand upon stimulation with the vaccine cells. The responding gammadelta T cells were predominantly Vdelta1+/Vgamma1+, and represented diverse clonal origins. The gammadelta T cells could not inhibit in vitro proliferation of the vaccine T cells and displayed low cytotoxic reactivity towards the vaccine clones. However, they produced high levels of IL2, TNFalpha and IL10. These results indicate that gammadelta T cells can be stimulated by activated alphabeta T cells, and that these gammadelta T cell responses are upregulated after T cell vaccination. These findings suggest that gammadelta T cells are involved in peripheral mechanisms to control activated autoreactive T cells.
journal_name
J Neuroimmunoljournal_title
Journal of neuroimmunologyauthors
Stinissen P,Zhang J,Vandevyver C,Hermans G,Raus Jdoi
10.1016/s0165-5728(98)00060-5subject
Has Abstractpub_date
1998-07-01 00:00:00pages
94-104issue
1-2eissn
0165-5728issn
1872-8421pii
S0165-5728(98)00060-5journal_volume
87pub_type
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journal_title:Journal of neuroimmunology
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journal_title:Journal of neuroimmunology
pub_type: 临床试验,杂志文章,随机对照试验
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更新日期:2003-01-01 00:00:00
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journal_title:Journal of neuroimmunology
pub_type: 杂志文章
doi:10.1016/0165-5728(91)90081-h
更新日期:1991-01-01 00:00:00
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journal_title:Journal of neuroimmunology
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journal_title:Journal of neuroimmunology
pub_type: 杂志文章
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