Journal
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
Volume 22, Issue 5, Pages -Publisher
MDPI
DOI: 10.3390/ijms22052439
Keywords
acute brain injuries; damage-associated molecular pattern molecules; receptor for advanced glycation end-products; biomarkers
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Early brain injury leads to the release of damage-associated molecular patterns (DAMPs), which may trigger cellular damage and non-infectious inflammation, exacerbating brain injury.
Early or primary injury due to brain aggression, such as mechanical trauma, hemorrhage or is-chemia, triggers the release of damage-associated molecular patterns (DAMPs) in the extracellular space. Some DAMPs, such as S100B, participate in the regulation of cell growth and survival but may also trigger cellular damage as their concentration increases in the extracellular space. When DAMPs bind to pattern-recognition receptors, such as the receptor of advanced glycation end-products (RAGE), they lead to non-infectious inflammation that will contribute to necrotic cell clearance but may also worsen brain injury. In this narrative review, we describe the role and ki-netics of DAMPs and RAGE at the acute phase of brain injury. We searched the MEDLINE database for DAMPs or RAGE or S100B and traumatic brain injury or subarachnoid hemorrhage or stroke. We selected original articles reporting data on acute brain injury pathophysiology, from which we describe DAMPs release and clearance upon acute brain injury, and the implication of RAGE in the development of brain injury. We will also discuss the clinical strategies that emerge from this overview in terms of biomarkers and therapeutic perspectives
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