Previous research reports in prion diseases provided accumulative concrete evidences of misfolded abnormal prions in causing neurodegenerative disease. Recently, other interesting findings revealed that inflammations are being triggered in prion disea...
Previous research reports in prion diseases provided accumulative concrete evidences of misfolded abnormal prions in causing neurodegenerative disease. Recently, other interesting findings revealed that inflammations are being triggered in prion disease in addition to the accumulations of misfolded abnormal prion proteins. Hence, several research institutes have started in monitoring the expressions and concentrations of inflammatory proteins to find the correlation with the prion disease. In this study, we investigated inflammatory biomarker by transmitting Chander/RML strain of abnormal prion protein (PrPSC) into mouse, which was adapted to murine through several passages in previous study. This strain was provided by KCDC through ‘Pathogenic material transfer agreement’ with original provider. Animal experiment was approved by animal test ethics committee (KCDC-058-12-2A). Burrowing activities of mice were measured periodically, and animal specimens, brain, spleen and plasma, were collected at 1, 7, 14, 56, and 105 days post inoculation (dpi) interval. Mouse brains and plasmas were tested with antibodies against inflammatory biomarkers through ELISA and immunohistochemistry. Another object of this study was to regenerate murine denatured prion resources, along with pathological studies of prion diseases in correlations with diverse inflammatory markers. Accumulations of PrPSC in time course(dpi) were observed and confirmed by WB, and changes of mPTX3 levels in plasma was confirmed by ELISA. Dispersion of mPTX3 in the hippocampus of mouse in experimental groups was also confirmed by IHC. And IL-1α, IL-1β, IL-2, IFN-γ, RANTES among 23 cytokines showed differences between experimentally PrPSc transmitted and control groups. Lastly, correlations between PrPSc accumulation in the time course and burrowing activity was also found. From the current study, correlations of PrPSC, inflammatory proteins and burrowing activity were evident. Hence, inflammatory proteins should be revisited as potential surrogate biomarkers for the diagnosis of prion disease and the mediators for the drug discovery.