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The Importance and Control of Low-Grade Inflammation Due to Damage of Cellular Barrier Systems That May Lead to Systemic Inflammation

Journal article
Authors C. Ronnback
Elisabeth Hansson
Published in Frontiers in Neurology
Volume 10
Pages 533
ISSN 1664-2295
Publication year 2019
Published at Institute of Neuroscience and Physiology, Department of Clinical Neuroscience
Pages 533
Language en
Links dx.doi.org/10.3389/fneur.2019.00533
Keywords blood-brain barrier, blood-retinal barrier, blood-nerve barrier, blood-lymph barrier, blood-cerebrospinal fluid barrier, low-grade inflammation, systemic inflammation, actin-filament reorganization, blood-brain, neuroinflammation, cytoskeleton, astrocytes, mechanisms, networks, cells, step, release, Neurosciences & Neurology
Subject categories Neurosciences

Abstract

Systemic low-grade inflammation can be initiated in vivo after traumatic injury or in chronic diseases such as neurodegenerative, metabolic, and autoimmune diseases. Inducers of inflammation trigger production of inflammatory mediators, which alter the functionality of tissues and organs and leads to harmful induction of different barrier systems in the body, where the blood-brain barrier, the blood-retinal barrier, blood-nerve barrier, blood-lymph barrier and the blood-cerebrospinal fluid barrier play major roles. The different barriers are unique but structured in a similar way. They are equipped with sophisticated junctional complexes where different connexins, protein subunits of gap junction channels and hemichannels, constitute important partners. The cells involved in the various barriers are coupled in networks, are excitable but do not express action potentials and may be targets for inflammation leading to changes in several biochemical cellular parameters. During any type of inflammation barrier break-down is observed where any form of injury can start with low-grade inflammation and may lead to systemic inflammation.

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