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Li-Weber, M. et al.

Li-Weber, Giaisi, Baumann, Treiber, Krammer,

The anti-inflammatory sesquiterpene lactone parthenolide suppresses CD95-mediated activation-induced-cell-death in T-cells.

Apoptosis is a morphologically distinct form of cell death involved in many physiological and pathological processes. The death receptor CD95 (APO-1/Fas) and its ligand ( L) CD95L are critically involved in activation-induced-cell-death (AICD) of activated T-cells. Here we show that the anti-inflammatory sesquiterpene lactone parthenolide derived from the European traditional herb-medicine feverfew and many Mexican India medicinal plants suppresses expression of the CD95L and CD95 at the mRNA levels, thus, preventing T-cells from AICD. We demonstrate that parthenolide blocks NF-kappaB binding to the two NF-kappa binding sites of the CD95L promoter and suppresses promoter activity upon T-cell activation. Aberrant expression of CD95 and, particularly CD95L is dangerous and may lead to severe diseases. Our study indicates that parthenolide supports T-cell survival by down-regulating the CD95 system, at least in part, and, therefore, may have therapeutic potential as a new anti-apoptotic substance against AICD in T-cells.[1]

References

The anti-inflammatory sesquiterpene lactone parthenolide suppresses CD95-mediated activation-induced-cell-death in T-cells. Li-Weber, M., Giaisi, M., Baumann, S., Treiber, M.K., Krammer, P.H. Cell Death Differ. (2002) [Pubmed]

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