Formation in Macrophages with WASP Interacting Protein in Podosome Wiskott-Aldrich Syndrome Protein (WASP) Requirement for a Complex of
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Requirement for a complex of Wiskott-Aldrich syndrome protein (WASP) with WASP interacting protein in podosome formation in macrophages.
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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Transformation of cells by the src oncogene causes dramatic changes in adhesive structures. In v-src-transformed 3Y1 rat fibroblasts (3Y1-src), there are actin-rich protrusive structures called podosomes by which attachment to the extracellular matrix is thought to occur. In this study, we found that neural Wiskott-Aldrich syndrome protein (N-WASP) colocalizes with filamentous actin (F-actin) i...
متن کاملRegulation of podosome dynamics by WASp phosphorylation: implication in matrix degradation and chemotaxis in macrophages.
Podosomes, adhesion structures capable of matrix degradation, have been linked with the ability of cells to perform chemotaxis and invade tissues. Wiskott-Aldrich Syndrome protein (WASp), an effector of the RhoGTPase Cdc42 and a Src family kinase substrate, regulates macrophage podosome formation. In this study, we demonstrate that WASp is active in podosomes by using TIRF-FRET microscopy. Phar...
متن کاملWiskott-Aldrich syndrome protein regulates podosomes in primary human macrophages.
Wiskott-Aldrich syndrome protein (WASp) is a hematopoietic-specific, multidomain protein whose mutation is responsible for the immunodeficiency disorder Wiskott-Aldrich syndrome. WASp contains a binding motif for the Rho GTPase CDC42Hs as well as verprolin/cofilin-like actin-regulatory domains, but no specific actin structure regulated by CDC42Hs-WASp has been identified. We found that WASp col...
متن کاملEssential role of neural Wiskott-Aldrich syndrome protein in podosome formation and degradation of extracellular matrix in src-transformed fibroblasts.
Transformation of cells by the src oncogene causes dramatic changes in adhesive structures. In v-src-transformed 3Y1 rat fibroblasts (3Y1-src), there are actin-rich protrusive structures called podosomes by which attachment to the extracellular matrix is thought to occur. In this study, we found that neural Wiskott-Aldrich syndrome protein (N-WASP) colocalizes with filamentous actin (F-actin) i...
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