Abstract
Activation of the neutrophil NADPH oxidase by either the bacterial peptide fMLP or phorbol myristate acetate (PMA) is partially suppressed by SB 203580, a specific inhibitor of the MAP kinase family member, SAPK2/p38. The concentration of SB 203580 that suppresses activation of NADPH oxidase is similar to that which inhibits SAPK2/p38 in vitro, and both fMLP and PMA induce an extremely rapid and potent activation of SAPK2/p38 in neutrophils. SB 203580 does not exert its effect by preventing the neutrophil priming reaction, by suppressing the phosphorylation of p47(phax), or by preventing the translocation of p47(phax)/67(phax) to the plasma membrane.
| Original language | English |
|---|---|
| Pages (from-to) | 465-470 |
| Number of pages | 6 |
| Journal | Biochemical and Biophysical Research Communications |
| Volume | 259 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 7 Jun 1999 |
ASJC Scopus subject areas
- Biophysics
- Biochemistry
- Molecular Biology
- Cell Biology