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Immunopharmacol Immunotoxicol. 2008;30(3):581-600. doi: 10.1080/08923970802135559.

Immunomodulatory activity of synthetic triterpenoids: inhibition of lymphocyte proliferation, cell-mediated cytotoxicity, and cytokine gene expression through suppression of NF-kappaB.

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Division of Surgical Research, Department of Surgery, Henry Ford Health System, Detroit, Michigan, USA.


Synthetic oleanane triterpenoids (CDDO, CDDO-Im and CDDO-Me) are potent anti-inflammatory agents, but have not been investigated for effects on T cell-mediated immune responses. Here we demonstrate that CDDOs have profound immunosuppressive effects on T cell proliferation, development of IL-2 activated LAK cells and cytotoxic T lymphocytes (CTLs), and expression of cytokines at concentrations of 1.25 microM to 0.078 microM. Treatment with CDDO-Me also inhibited the generation of allo-reactive T cell responses in vivo. The suppression of these cell-mediated immune responses by CDDO-Me was associated with the inhibition of NF-kappaB transcription factor.

[Indexed for MEDLINE]

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