Journal: bioRxiv
Article Title: Translational Opportunity of Engineered IFNγ-eEVs Through Targeted Inhibition of JAK/STAT1 Signaling, Mimicking IVIg Therapy
doi: 10.64898/2026.04.29.721601
Figure Lengend Snippet: Flow cytometry phenotyping of CD63-positive EVs. UHPp, and IVIg EVs isolated using dUC or SEC were labeled with DiD and CD63-PE and analyzed by imaging flow cytometry. (A) Representative images of UHPp and IVIg EVs show morphology, BF, CD63, DiD, and scatter channels. (B) Scatter was used to gate out debris (left, gate R1). Fluorescent dot plots of unlabeled samples show background signal (middle) and labeled samples identified DiD + and CD63 + events (right, gate R2). (C) Summary plots of the frequency of EVs identified by scatter (gate R1, left) or fluorescence (gate R2, right) of UHPp, and IVIg EVs isolated using dUC or SEC. BF, bright field; DiD, 1,1′-dioctadecyl-3,3,3′,3′- tetramethylindodicarbocyanine, 4-chlorobenzenesulfonate salt; dUC, differential ultracentrifugation; EV, extracellular vesicles; IVIg, intravenous immunoglobulin; PE, phycoerythrin; SEC, size-exclusion chromatography; UHPp, pooled unprocessed human plasma. Note: two different lots of UHPp and IVIg were used for these experiments.
Article Snippet: Pooled unprocessed human plasma (UHPp) was obtained from Innovative Research (Novi, MI).
Techniques: Flow Cytometry, Isolation, Labeling, Imaging, Fluorescence, Size-exclusion Chromatography, Clinical Proteomics