Important Role in Monocyte Chemotaxis an Protein with Mammalian Verprolins Plays A Complex of Wiskott-Aldrich Syndrome
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The Chemotactic Defect in Wiskott-Aldrich Syndrome Macrophages Is Due to the Reduced Persistence of Directional Protrusions
Wiskott-Aldrich syndrome protein (WASp) is an actin nucleation promoting factor that is required for macrophages to directionally migrate towards various chemoattractants. The chemotaxis defect of WASp-deficient cells and its activation by Cdc42 in vivo suggest that WASp plays a role in directional sensing, however, its precise role in macrophage chemotaxis is still unclear. Using shRNA-mediate...
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Wiskott-Aldrich is an X-lined recessive disorder typically characterized by thrombocytopenia, eczema and recurrent infections. We report the four year treatment progress of a six year old boy who initially presented with vesicular lesions over the trunk, upper and lower extremities and face and blood tinged stools at the age of 2 weeks. From the family pedigree, there were two suspected cases t...
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Trafficking of immune cells is controlled by directed migration of relevant cells toward chemotactic signals. Actin cytoskeleton undergoes continuous remodeling and serves as machinery for cell migration. The mDia family of formins and the Wiskott-Aldrich syndrome protein (WASP)-Arp2/3 system are two major actin nucleating-polymerizing systems in mammalian cells, with the former producing long ...
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Chemotactic migration of macrophages is critical for the recruitment of leukocytes to inflamed tissues. Macrophages use a specialized adhesive structure called a podosome to migrate. Podosome formation requires the Wiskott-Aldrich syndrome protein (WASP), which is a product of the gene defective in an X-linked inherited immunodeficiency disorder, the Wiskott-Aldrich syndrome. Macrophages from W...
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