LPS induces stefin A3 expression in mouse primary cultured glial cells

We searched for a gene that is up-regulated in response to LPS at a later time point in primary cultured glial cells. Using a Gene Chip Probe Array, we identified stefin A3, which is known as a cysteine protease inhibitor. As assessed by RT-PCR, we observed a time-dependent (2 to 48 h) up-regulation of stefin A3. The results indicate that stefin A3 is involved in infection and inflammation at a later time point.