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. 2005 Aug 16;106(13):4146–4151. doi: 10.1182/blood-2005-03-1223

Figure 4.

Figure 4.

Coated platelet formation following dual agonist stimulation is greatly decreased in FcRγ-/- platelets. Platelets isolated from wild-type (C57BL/6) (▪) or FcRγ-/- (Inline graphic) mice were stimulated with the indicated agonists for 7 minutes. (A) The percentage of platelets with high surface P-selectin expression was measured by flow cytometry with FITC anti-CD62P. (B) Coated platelet formation was evaluated as the percentage of platelets with high fibrinogen, low PE-JON/A binding as indicated in Figure 2B; n = 3. *P < .05 relative to wild-type platelets. (C) FcRγ-/- platelets stained with FITC-antifibrinogen and PE-JON/A and analyzed by 2-color flow cytometry. Dashed boxes indicate the activated and coated platelet populations.