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Toll-like and adenosine receptor expression in injured skeletal muscle.

Authors
Warren-GL; Hulderman-T; Liston-A; Simeonova-PP
Source
Muscle Nerve 2011 Jul; 44(1):85-92
NIOSHTIC No.
20039030
Abstract
Introduction: Many aspects of skeletal muscle regeneration are now considered to be controlled by the innate immune system, specifically macrophages, but the mechanisms for activation and modulation of the innate immune system during injury are not well understood. Methods: We analyzed the expression of toll-like receptors (TLRs) and adenosine receptors during traumatic skeletal muscle injury. mRNA expression and immunostaining of these receptors were evaluated in mouse skeletal muscle injured by freezing. Results: Expression of nearly all mammalian TLRs was induced at 1 and/or 3 days postinjury with a common trend for higher expression at day 3. Injury also elicited a dramatic increase in the expression of adenosine receptors A(2B) and A(3) but not A(1) and A(2A). Conclusions: Both receptor types may be potential targets for stimulation of skeletal muscle tissue regeneration and functional restoration after injury.
Keywords
Animal-studies; Biomechanics; Cumulative-trauma-disorders; Immune-reaction; Immune-system; Laboratory-animals; Laboratory-testing; Musculoskeletal-system; Musculoskeletal-system-disorders; Physiological-effects; Physiological-factors; Physiological-fatigue; Physiological-measurements; Physiological-response; Rest-periods; Risk-factors; Traumatic-injuries; Author Keywords: damage; inflammation; innate immune system; macrophages; regeneration
Contact
Gordon L. Warren, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, HELD, 1095 Willowdale Rd., MS H-2800, Morgantown, WV 26505
CODEN
MUNEDE
Publication Date
20110701
Document Type
Journal Article
Email Address
gwarren@gsu.edu
Fiscal Year
2011
NTIS Accession No.
NTIS Price
Issue of Publication
1
ISSN
0148-639X
NIOSH Division
HELD
Source Name
Muscle & Nerve
State
WV; GA
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