RGD Reference Report - The role of the choroid plexus in neutrophil invasion after traumatic brain injury. - Rat Genome Database

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The role of the choroid plexus in neutrophil invasion after traumatic brain injury.

Authors: Szmydynger-Chodobska, J  Strazielle, N  Zink, BJ  Ghersi-Egea, JF  Chodobski, A 
Citation: Szmydynger-Chodobska J, etal., J Cereb Blood Flow Metab. 2009 Sep;29(9):1503-16. Epub 2009 May 27.
RGD ID: 5135009
Pubmed: PMID:19471279   (View Abstract at PubMed)
PMCID: PMC2736364   (View Article at PubMed Central)
DOI: DOI:10.1038/jcbfm.2009.71   (Journal Full-text)

Traumatic brain injury (TBI) frequently results in neuroinflammation, which includes the invasion of neutrophils. After TBI, neutrophils infiltrate the choroid plexus (CP), a site of the blood-cerebrospinal fluid (CSF) barrier (BCSFB), and accumulate in the CSF space near the injury, from where these inflammatory cells may migrate to brain parenchyma. We have hypothesized that the CP functions as an entry point for neutrophils to invade the injured brain. Using the controlled cortical impact model of TBI in rats and an in vitro model of the BCSFB, we show that the CP produces CXC chemokines, such as cytokine-induced neutrophil chemoattractant (CINC)-1 or CXCL1, CINC-2alpha or CXCL3, and CINC-3 or CXCL2. These chemokines are secreted both apically and basolaterally from the choroidal epithelium, a prerequisite for neutrophil migration across epithelial barriers. Consistent with these findings, we also provide electron microscopic evidence that neutrophils infiltrate the choroidal stroma and subsequently reach the intercellular space between choroidal epithelial cells. This is the first detailed analysis of the BCSFB function related to neutrophil trafficking. Our observations support the role of this barrier in posttraumatic neutrophil invasion.

RGD Manual Disease Annotations    Click to see Annotation Detail View
TermQualifierEvidenceWithReferenceNotesSourceOriginal Reference(s)
Brain Injuries  ISOCxcl1 (Rattus norvegicus)5135009; 5135009mRNA:increased expression:choroid plexus and cerebral cortexRGD 
Brain Injuries  IEP 5135009mRNA:increased expression:choroid plexus and cerebral cortexRGD 

Objects Annotated

Genes (Rattus norvegicus)
Cxcl1  (C-X-C motif chemokine ligand 1)

Genes (Mus musculus)
Cxcl1  (C-X-C motif chemokine ligand 1)

Genes (Homo sapiens)
CXCL1  (C-X-C motif chemokine ligand 1)


Additional Information