Abstract:
:GPI-linked surface molecules have recently been described as structures with an activation potential for human T lymphocytes. To study the role of these molecules in T cell activation we analysed GPI-deficient or normal T cells from patients with paroxysmal nocturnal haemoglobinuria (PNH). On activation with allogeneic Epstein-Barr virus (EBV)-transformed B cell lines GPI-deficient freshly separated T cells or continuously growing T cell lines exhibited a significantly lower proliferation or cytokine production compared with their normal counterparts. In contrast, stimulation via the T cell receptor-associated CD3 structure resulted in a comparable response. There was no difference in activation of normal T lymphocytes when GPI-deficient B cells were used as stimulators compared with normal B cells obtained from the same PNH patient. We conclude from these data that GPI deficiency in PNH leads to a functional deficiency of GPI-deficient T cells. In contrast, no difference in activation of T lymphocytes for GPI-deficient cells on the stimulator cell level was observed.
journal_name
Clin Exp Immunoljournal_title
Clinical and experimental immunologyauthors
Schubert J,Stroehmann A,Scholz C,Schmidt REdoi
10.1111/j.1365-2249.1995.tb06656.xsubject
Has Abstractpub_date
1995-10-01 00:00:00pages
199-203issue
1eissn
0009-9104issn
1365-2249journal_volume
102pub_type
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