Fig. 6.
C5a/C5aR signaling regulates the expression of signaling proteins in lupus brain. The expression of survival factors p-Akt and other signaling molecules, p-Erk, p-JNK, p-STAT1 was assessed by western blotting with equal amounts of protein. They were normalized to the housekeeping protein, actin. The expression of p-Akt was significantly reduced while all the other molecules were up-regulated in MRL/lpr brain. The alteration in expression was alleviated by C5aR inhibition. All changes of *p<0.05 were considered significant. Shown are representative blots from three separate experiments.