Document Detail


Characterisation of amyloid-induced inflammatory responses in the rat retina.
MedLine Citation:
PMID:  21850448     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Amyloid-induced inflammation is thought to play a critical and early role in the pathophysiology of Alzheimer's disease. As such, robust models with relevant and accessible compartments that provide a means of assessing anti-inflammatory agents are essential for the development of therapeutic agents. In the present work, we have characterised the induction of inflammation in the rat retina following intravitreal administration of amyloid-beta protein (Aβ). Histology and mRNA endpoints in the retina demonstrate Aβ1-42-, but not Aβ42-1-, induced inflammatory responses characterised by increases in markers for microglia and astrocytes (ionised calcium-binding adaptor molecule 1 (iba-1), GFAP and nestin) and increases in mRNA for inflammatory cytokines and chemokines such as IL1-β, MIP1α and TNFα. Likewise, analysis of vitreal cytokines also revealed increases in inflammatory cytokines and chemokines, including IL1-β, MIP1α and MCP1, induced by Aβ1-42 but not Aβ42-1. This profile of pro-inflammatory gene and protein expression is consistent with that observed in the Alzheimer's disease brain and suggest that this preclinical model may provide a useful relevant tool in the development of anti-inflammatory approaches directed towards Alzheimer's disease therapy.
Authors:
D R Howlett; S T Bate; S Collier; A Lawman; T Chapman; T Ashmeade; I Marshall; P J B Anderson; K L Philpott; J C Richardson; C J Hille
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-8-18
Journal Detail:
Title:  Experimental brain research. Experimentelle Hirnforschung. Experimentation cerebrale     Volume:  -     ISSN:  1432-1106     ISO Abbreviation:  -     Publication Date:  2011 Aug 
Date Detail:
Created Date:  2011-8-18     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0043312     Medline TA:  Exp Brain Res     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Neurosciences Centre of Excellence for Drug Discovery, GlaxoSmithKline R&D Limited, New Frontiers Science Park, Third Avenue, Harlow, Essex, CM19 5AW, UK, david.howlett@kcl.ac.uk.
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