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Coronin 1 is dispensable for leukocyte recruitment and liver injury in concanavalin A-induced hepatitis

Siegmund, Kerstin and Lee, Woo-Yong and Tchang, Vincent S. and Stiess, Michael and Terracciano, Luigi and Kubes, Paul and Pieters, Jean. (2013) Coronin 1 is dispensable for leukocyte recruitment and liver injury in concanavalin A-induced hepatitis. Immunology letters, Vol. 153, No. 1-2. pp. 62-70.

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Official URL: http://edoc.unibas.ch/dok/A6165350

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Abstract

Coronin 1, a member of the evolutionary conserved coronin protein family, is highly expressed in all leukocytes. In mice and human, genetic inactivation of coronin 1 results in immuno-deficiencies that are linked to a strong reduction of naïve T cell numbers in peripheral organs, while memory/effector T cells, B cells, monocytes and neutrophils are less or not at all affected. Whether or not coronin 1 is important for leukocyte functions such as migration and phagocytosis has been a matter of debate. The current work addresses coronin 1-dependent leukocyte function by analyzing the response of coronin 1-deficient mice in a model of concanavalin A (Con A)-induced liver injury. Histological evaluation and determination of serum liver enzyme levels showed that coronin 1-deficient mice develop signs of acute hepatitis similar to Con A-treated wild type mice despite a reduced activation of T cells in the absence of coronin 1. Furthermore, analysis by intravital microscopy following Con A stimulation revealed that Gr-1(+) neutrophils and CD4(+) T cell adhesion in the post-sinusoidal venules increased in wild type as well as in coronin 1-deficient mice. These results suggest that coronin 1, while important for naïve T cell survival, is dispensable for other leukocyte function under inflammatory conditions in vivo.
Faculties and Departments:05 Faculty of Science > Departement Biozentrum > Infection Biology > Biochemistry (Pieters)
UniBasel Contributors:Pieters, Jean
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:Elsevier
ISSN:0165-2478
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:13 Sep 2013 07:59
Deposited On:13 Sep 2013 07:57

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