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- Title
Inhibition of T and B lymphocyte proliferation by rapamycin.
- Authors
Kay, J.E.; Kromwel, L.; Doe, S.E.A.; Denyer, M.
- Abstract
The immunosuppressive macrolide rapamycin shows marked structural similarity to FK-506, and like FK-506 inhibits the activation of cultured T and B lymphocytes at concentrations as low as 10-10 M. However, rapamycin blocks T-lymphocyte proliferation at a much later stage than FK-506. It also inhibits human, porcine and murine T- and B-lymphocyte activation by all pathways tested, including pathways which are insensitive to FK-506, such as interleukin-2 (IL-2)-mediated proliferation of IL-2-dependent T-cell lines, activation of human peripheral blood T lymphocytes by phorbol ester and anti-CD28 and activation of murine B lymphocytes by bacterial lipopolysaccharide. Thus these two macrolides that bind competitively to the same major intracellular receptor protein inhibit T- and B-lymphocyte activation by quite distinct mechanisms.
- Subjects
TACROLIMUS; MACROLIDE antibiotics; LYMPHOCYTES; IMMUNOSUPPRESSIVE agents; B cells; IMMUNOLOGY
- Publication
Immunology, 1991, Vol 72, Issue 4, p544
- ISSN
0019-2805
- Publication type
Article