A) Syncytia (arrows) in H1 hPSC-derived artery and vein
ECs inoculated with Nipah or Hendra viruses for 24 hours; scale = 25
μm
B) Numbers of nuclei per cell after inoculation with Nipah
or Hendra viruses for 24 hours (top); syncytia frequency
(≥3 nuclei/cell; bottom)
C) Live imaging of cocultured SUN004.1.9 GFP+
and H1 wild-type artery ECs infected with Nipah virus, tracking cell fusion into
GFP+ syncytia, followed by death (scale = 200 μm,
timestamp: hours:minutes)
D) Live imaging showed Nipah- and Hendra-infected artery
ECs displayed significantly greater median velocity (a measure of cell fusion)
than vein ECs
E) Fusion and GFP diffusion between 3 Nipah-infected
artery ECs, followed by aggregation of their nuclei (scale bar = 20 μm,
timestamp: hours:minutes)
See also Figure
S5 and Movie
S1