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P-Rex and Vav Rac-GEFs in platelets control leukocyte recruitment to sites of inflammation by Dingxin Pan, Richard T. Amison, Yanira Riffo-Vasquez, Domenico.

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Presentation on theme: "P-Rex and Vav Rac-GEFs in platelets control leukocyte recruitment to sites of inflammation by Dingxin Pan, Richard T. Amison, Yanira Riffo-Vasquez, Domenico."— Presentation transcript:

1 P-Rex and Vav Rac-GEFs in platelets control leukocyte recruitment to sites of inflammation by Dingxin Pan, Richard T. Amison, Yanira Riffo-Vasquez, Domenico Spina, Simon J. Cleary, Michael J. Wakelam, Clive P. Page, Simon C. Pitchford, and Heidi C. E. Welch Blood Volume 125(7):1146-1158 February 12, 2015 ©2015 by American Society of Hematology

2 P-Rex and Vav family Rac-GEFs cooperate in peritoneal neutrophil recruitment. Dingxin Pan et al. Blood 2015;125:1146-1158 ©2015 by American Society of Hematology

3 P-Rex and Vav are required for neutrophil recruitment to the acutely LPS-inflamed lung. Dingxin Pan et al. Blood 2015;125:1146-1158 ©2015 by American Society of Hematology

4 Altered neutrophil rolling and impaired adhesion in airway postcapillary venules of P1V1 and P1V3 mice during acute LPS-induced lung inflammation. Dingxin Pan et al. Blood 2015;125:1146-1158 ©2015 by American Society of Hematology

5 Impaired LPS-induced ICAM1-dependent slow rolling and L- and E-selectin–dependent adhesion of neutrophils in airway postcapillary venules of P1V1 and P1V3 mice. Dingxin Pan et al. Blood 2015;125:1146-1158 ©2015 by American Society of Hematology

6 LPS-induced pulmonary neutrophil recruitment can be reconstituted with PVWT but not P1V1 or P1V3 platelets. Dingxin Pan et al. Blood 2015;125:1146-1158 ©2015 by American Society of Hematology

7 P-Rex and Vav control the pulmonary recruitment of eosinophils, monocytes/macrophages, and lymphocytes during Ova-induced lung allergy in a platelet- and leukocyte-adhesion–dependent manner. Dingxin Pan et al. Blood 2015;125:1146-1158 ©2015 by American Society of Hematology

8 P1V1 and P1V3 mice are protected from impairments in lung function in Ova-induced allergy. Dingxin Pan et al. Blood 2015;125:1146-1158 ©2015 by American Society of Hematology


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