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. 1988 Jul;7(7):1973–1977. doi: 10.1002/j.1460-2075.1988.tb03035.x

Interdependence of CD3-Ti and CD2 activation pathways in human T lymphocytes.

A Alcover 1, C Alberini 1, O Acuto 1, L K Clayton 1, C Transy 1, G C Spagnoli 1, P Moingeon 1, P Lopez 1, E L Reinherz 1
PMCID: PMC454469  PMID: 2901344

Abstract

Human T lymphocytes can be activated through either the antigen/MHC receptor complex T3-Ti (CD3-Ti) or the T11 (CD2) molecule to proliferate via an IL-2 dependent mechanism. To investigate the relationship of these pathways to one another, we generated and characterized Jurkat mutants which selectively express either surface CD3-Ti or CD2. Here we show that CD3-Ti- mutants fail to be stimulated by either pathway to increase phosphoinositide turnover, mobilize calcium or induce the IL-2 gene. The activation capacity of these mutants via CD2 as well as CD3-Ti can be restored following reconstitution of surface CD3-Ti expression upon appropriate DNA transfer (e.g. Ti beta subunit cDNA into Ti beta- Jurkat variants). Collectively, these results demonstrate that CD3-Ti and CD2 pathways are interdependent and that phosphoinositide turnover is linked to the CD3-Ti complex.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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