Figure 1

EVs are more abundant and smaller in the plasma of HTLV-1 infected individuals. (A) Size distribution of the EV populations. Plasma EVs were isolated on qEV columns and the collected vesicles were studied for size on qNANO. The mean particle size distribution is presented. HD is for healthy donors, HAC for HTLV-1 asymptomatic carriers, and HAM/TSP for patients with HAM/TSP. (B) Mode size of plasma EVs. EVs are smaller in the plasma of HTLV-1 infected individuals when compared to NI (p-value = 0,002, Kruskal-Wallis test, Dunn’s post-hoc test). (C) EV concentration of the different EV samples. EV concentration was determined with the qNANO device. EV concentration was significantly higher in HAC when compared to NI (p-value < 10−3, Kruskal-Wallis test, Dunn’s post-hoc test).