separated from pooled human serum using the MagCapture Exosome Isolation
Kit PS version 2 (# 290-84103 Fujifilm WAKO Pure Chemical Corporation)
with the KingFisher Flex System (Thermo Fisher Scientific). Briefly,
200 μL of serum was added to 300 μL of Tris-buffered saline
and centrifuged at 1200 × g for 20 min at 4
°C. The supernatant was filtered through a 0.45-μm filter
(# 7820-11001 FastRemover for Protein) using Positive pressure Resolvex
M10 96 (TECAN). EVs were isolated from filtered serum using the KingFisher
Flex System. The EVs were eluted with 100 μL of elution buffer
for proteomics analysis. The program of KingFisher Flex for the EV
isolation process is shown in