E/P-selectin-deficient mice: an optimal mutation for abrogating antigen but not tumor necrosis factor-alpha-induced immune responses.

Abstract excerpt

Leukocyte recruitment in cremaster microcirculation was visualized by intravital microscopy, either in ovalbumin sensitized and challenged animals, or in response to TNF-alpha. In antigen-challenged mice a significant increase in leukocyte rolling (approximately 50 to 200-300 cells/min) and adhesion (2 to 15-20 cells/100 microm), and a very dramatic increase in emigration ( approximately 1 to >40 cells/field) was...

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