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image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao European Journal of ...arrow_drop_down
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European Journal of Immunology
Article . 2012 . Peer-reviewed
License: Wiley Online Library User Agreement
Data sources: Crossref
image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
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The tyrosine kinase Abl is a component of macrophage podosomes and is required for podosome formation and function

Authors: Baruzzi A; BERTON, Giorgio;

The tyrosine kinase Abl is a component of macrophage podosomes and is required for podosome formation and function

Abstract

Myeloid leukocytes form actin‐based plasma membrane protrusions, called podosomes, that are implicated in myeloid cell recruitment into tissues and cell migration within the interstitium. In this study, we show that tyrosine kinases of the Abl family are present in podosomes formed by murine and human macrophages. Silencing of Abl expression in bone marrow‐derived macrophages and monocyte‐derived macrophages by siRNA or Abl enzymatic inhibition with imatinib resulted in the disassembly of macrophage podosomes and the reduction of their capacity to degrade an extracellular matrix and migrate through matrigel matrices and endothelial cell monolayers. Additionally, macrophages deficient in Src‐family kinases, which cross‐talk with Abl in regulating macrophage migration, also demonstrated podosome disassembly. These findings suggest that podosome disassembly induced by Abl targeting may inhibit podosome‐dependent functions such as leukocyte recruitment into inflammatory sites and osteoclast‐dependent bone resorption.

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Keywords

Macrophages, Protein-Tyrosine Kinases, macrophage; podosome; cell migration; Abl, Actins, Piperazines, Mice, Inbred C57BL, Mice, Pyrimidines, Cell Movement, Benzamides, Imatinib Mesylate, Animals, Humans, Cell Surface Extensions, RNA, Small Interfering, Oncogene Proteins v-abl, Protein Kinase Inhibitors, Cells, Cultured

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    citations
    This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    13
    popularity
    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
    Average
    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    Average
    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
    Top 10%
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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
13
Average
Average
Top 10%
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