Lymphotoxin production by subsets of T cells
Autor: | D D Eardley, F W Shen, R K Gershon, N H Ruddle |
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Rok vydání: | 1980 |
Předmět: | |
Zdroj: | The Journal of Immunology. 124:1199-1202 |
ISSN: | 1550-6606 0022-1767 |
DOI: | 10.4049/jimmunol.124.3.1199 |
Popis: | Lymphotoxin is produced by T cells sensitized to antigen upon re-exposure in vitro. It is also elicited by mitogen treatment. Its production has been correlated with delayed-type hypersensitivity and it may be a mediator of that phenomenon. We have examined the Ly phenotype of the subset(s) of T cells that produce lymphotoxin in order to investigate the relationship of lymphotokin killing to allo-killing mediated by Ly2+ T cells. We have found that Ly1 T cells sensitized to ovalbumin secrete more lymphotoxin than Ly2 cells. The ovalbumin-sensitized T cells do not lyse their target in a short term 51Cr-release assay even when "glued" to the target with Con A. Thus, lymphotoxin-producing cells differ phenotypically from the previously defined cytotoxic T cells that bear the Ly2 differentiation marker. |
Databáze: | OpenAIRE |
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