Figure 5: Age-matched patients and controls were compared for PTK7 levels on circulating CD4+CD25highFoxp3+T cells. The patients were sampled in three different times (T1, T2 and T3). The healthy controls were sampled once. Patients at time point one (T1) showed significantly higher PTK7 levels when compared to healthy controls. Moreover, significant differences were found when patients at time points one and three were compared.