体外研究
A complement activation product, C5a, is known to recruit and activate microglia and astrocytes in vitro by activation of a G protein-coupled cell-surface C5aR. In the MTT assay, in 24 h plate, it shows that all groups are significant when compared with negative control group. For PMX 205 (PMX205) group, the value recorded is in between 0.09893 to 0.2465, EP54 group, 0.02724 to 0.1748 and Tamoxifen group, the value recorded in between 0.09880 to 0.2464. For the 48 h plate of incubation time, only two groups show a significant result, which are PMX 205 and Tamoxifen. The values recorded are in between 0.04987 to 0.3273 and 0.5777 to 0.8551 respectively. For the 72 h plate, only one group shows a significant result, PMX 205 (antagonist group) with the value recorded in between 0.02136 to 0.5322.