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Type: Journal article
Title: Evidence that meningeal mast cells can worsen stroke pathology in mice
Author: Arac, A.
Grimbaldeston, M.
Nepomuceno, A.
Olayiwola, O.
Pereira, M.
Nishiyama, Y.
Tsykin, A.
Goodall, G.
Schlecht, U.
Vogel, H.
Tsai, M.
Galli, S.
Bliss, T.
Steinberg, G.
Citation: American Journal of Pathology, 2014; 184(9):2493-2504
Publisher: American Society for Investigative Pathology
Issue Date: 2014
ISSN: 0002-9440
Statement of
Ahmet Arac, Michele A. Grimbaldeston, Andrew R.B. Nepomuceno, Oluwatobi Olayiwola, Marta P. Pereira, Yasuhiro Nishiyama, Anna Tsykin, Gregory J. Goodall, Ulrich Schlecht, Hannes Vogel, Mindy Tsai, Stephen J. Galli, Tonya M. Bliss, Gary K. Steinberg
Abstract: Stroke is the leading cause of adult disability and the fourth most common cause of death in the United States. Inflammation is thought to play an important role in stroke pathology, but the factors that promote inflammation in this setting remain to be fully defined. An understudied but important factor is the role of meningeal-located immune cells in modulating brain pathology. Although different immune cells traffic through meningeal vessels en route to the brain, mature mast cells do not circulate but are resident in the meninges. With the use of genetic and cell transfer approaches in mice, we identified evidence that meningeal mast cells can importantly contribute to the key features of stroke pathology, including infiltration of granulocytes and activated macrophages, brain swelling, and infarct size. We also obtained evidence that two mast cell-derived products, interleukin-6 and, to a lesser extent, chemokine (C-C motif) ligand 7, can contribute to stroke pathology. These findings indicate a novel role for mast cells in the meninges, the membranes that envelop the brain, as potential gatekeepers for modulating brain inflammation and pathology after stroke.
Keywords: Brain; Meninges; Mast Cells; Animals; Mice, Inbred C57BL; Mice, Knockout; Mice; Disease Models, Animal; Magnetic Resonance Imaging; Flow Cytometry; Male; Stroke; Gene Knock-In Techniques
Rights: © 2014 American Society for Investigative Pathology.
RMID: 0030014958
DOI: 10.1016/j.ajpath.2014.06.003
Appears in Collections:Medicine publications

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