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Microbial isoprenoid biosynthesis and human gammadelta T cell activation.

FEBS letters (2003-06-05)
Matthias Eberl, Martin Hintz, Armin Reichenberg, Ann-Kristin Kollas, Jochen Wiesner, Hassan Jomaa
ZUSAMMENFASSUNG

Human Vgamma9/Vdelta2 T cells play a crucial role in the immune response to microbial pathogens, yet their unconventional reactivity towards non-peptide antigens has been enigmatic until recently. The break-through in identification of the specific activator was only possible due to recent success in a seemingly remote field: the elucidation of the reaction steps of the newly discovered 2-C-methyl-D-erythritol-4-phosphate (MEP) pathway of isoprenoid biosynthesis that is utilised by many pathogenic bacteria. Unexpectedly, the intermediate of the MEP pathway, (E)-4-hydroxy-3-methyl-but-2-enyl-pyrophosphate) (HMB-PP), turned out to be by far the most potent Vgamma9/Vdelta2 T cell activator known, with an EC(50) of 0.1 nM.

MATERIALIEN
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Marke
Produktbeschreibung

Sigma-Aldrich
(E)-1-Hydroxy-2-methyl-2-butenyl-4-pyrophosphat Lithiumsalz, ≥95.0% (TLC)