Fig. 3.
Fig. 3. Persistence of the physical integrity of the endothelial layer after A23187 treatment. / Cryostat sections of untreated (A) or A23187-treated mesenteric venules (B) were incubated with a mAb directed against PECAM-1. The activated venules were collected 1 minute after A23187 treatment (peak of platelet adhesion). Immunoreactivity for PECAM-1 was not affected byA23187. Asterisk indicates vessel lumen. Bar, 10 μm.

Persistence of the physical integrity of the endothelial layer after A23187 treatment.

Cryostat sections of untreated (A) or A23187-treated mesenteric venules (B) were incubated with a mAb directed against PECAM-1. The activated venules were collected 1 minute after A23187 treatment (peak of platelet adhesion). Immunoreactivity for PECAM-1 was not affected byA23187. Asterisk indicates vessel lumen. Bar, 10 μm.

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