Expression of L3T4 molecules on Lyt-2+, class II-restricted antigen-specific T suppressor lymphocytes
✍ Scribed by Joachim Heuer; Joachim Degwert; Eckehart Kölsch
- Book ID
- 104755026
- Publisher
- Springer-Verlag
- Year
- 1986
- Tongue
- English
- Weight
- 698 KB
- Volume
- 24
- Category
- Article
- ISSN
- 0093-7711
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✦ Synopsis
Three bovine serum albumin-specific Lyt-2 + T suppressor (Ts) cell clones from CBA/J mice have been analyzed with regard to expression of L3T4 molecules. All three Ts-cell clones can be stained with monoclonal antibodies (mAb) to L3T4. Tested for the two clones restricted to recognition of E k determinants, antigen-specific proliferation on antigen-presenting cells, but not the proliferation induced by conditioned medium can be inhibited by L3T4-specific mAb. In a similar way, Ts-cell cytolytic effector functions can be blocked by L3T4specific mAb. Thus L3T4 structures seem to play a role in Ts-cell functions. Furthermore, the data support the view that L3T4 expression can be a property of class Hrestricted T cells irrespective of their Lyt phenotype.
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Mice were infected with the intracellular bacterium, Lisferia monocytogenes, and T cell clones from spleens, lymph nodes and peritoneal exudates were established. The capacity of L3T4', Lyt2-T-cell clones to specifically lyse L. monocytogenes-infected macrophages was analyzed. As a source of target