PROM1 and cholesteryl ester measurement: Finally, further analysis revealed no correlation between radiological parameters (lesion load / T2 lesions / T1 CE lesions / cerebral atrophy) [R2 = 0.019, p = 0.513] and CD133-deviation, however, a statistical trend was seen when comparing EDSS-score with CD133 (R2 = 0.146, p = 0.059, see Figure 5).