CCR2(+) monocytes infiltrate atrophic lesions in age-related macular disease and mediate photoreceptor degeneration in experimental subretinal inflammation in Cx3cr1 deficient mice.

Details

Ressource 1Download: BIB_13DD5FFBAE91.P001.pdf (1855.45 [Ko])
State: Public
Version: Final published version
Serval ID
serval:BIB_13DD5FFBAE91
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
CCR2(+) monocytes infiltrate atrophic lesions in age-related macular disease and mediate photoreceptor degeneration in experimental subretinal inflammation in Cx3cr1 deficient mice.
Journal
Embo Molecular Medicine
Author(s)
Sennlaub F., Auvynet C., Calippe B., Lavalette S., Poupel L., Hu S.J., Dominguez E., Camelo S., Levy O., Guyon E., Saederup N., Charo I.F., Rooijen N.V., Nandrot E., Bourges J.L., Behar-Cohen F., Sahel J.A., Guillonneau X., Raoul W., Combadiere C.
ISSN
1757-4684 (Electronic)
ISSN-L
1757-4676
Publication state
Published
Issued date
2013
Peer-reviewed
Oui
Volume
5
Pages
1775-1793
Language
english
Notes
Publication types: JOURNAL ARTICLE
Abstract
Atrophic age-related macular degeneration (AMD) is associated with the subretinal accumulation of mononuclear phagocytes (MPs). Their role in promoting or inhibiting retinal degeneration is unknown. We here show that atrophic AMD is associated with increased intraocular CCL2 levels and subretinal CCR2(+) inflammatory monocyte infiltration in patients. Using age- and light-induced subretinal inflammation and photoreceptor degeneration in Cx3cr1 knockout mice, we show that subretinal Cx3cr1 deficient MPs overexpress CCL2 and that both the genetic deletion of CCL2 or CCR2 and the pharmacological inhibition of CCR2 prevent inflammatory monocyte recruitment, MP accumulation and photoreceptor degeneration in vivo. Our study shows that contrary to CCR2 and CCL2, CX3CR1 is constitutively expressed in the retina where it represses the expression of CCL2 and the recruitment of neurotoxic inflammatory CCR2(+) monocytes. CCL2/CCR2 inhibition might represent a powerful tool for controlling inflammation and neurodegeneration in AMD.
Pubmed
Web of science
Open Access
Yes
Create date
29/10/2013 10:52
Last modification date
20/08/2019 13:42
Usage data