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Altered expression of genes functioning in lipid homeostasis is associated with lipid deposition in NOD mouse lacrimal gland Inra
Wu, K.; Joffre, C.; Xiaodong Li, X.L.; MacVeigh-Aloni, M.; Hom, M.; Hwang, J.; Chuanqing Ding, C.D.; Grégoire, S.; Bretillon, L.; Zong, Z.F.; Hamm-Alvarez, S.F..
Functional atrophy and accompanying lymphocytic infiltration and destruction of the lacrimal gland (LG) are characteristics of Sjögren's Syndrome (SjS). The male NOD mouse is an experimental model for the autoimmune exocrinopathy that develops in the LG of SjS patients. Acinar cells in LG of male NOD mice aged 3–4 months were previously shown to accumulate lipid droplets. In the current study, analysis of lipid components revealed that the accumulated lipids were mostly cholesteryl esters (CE). Gene expression microarray analysis followed by real-time RT-PCR revealed alterations in the expression of several genes involved in lipid homeostasis in LG of 12-week-old male NOD mice relative to matched BALB/c controls. A series of upregulated genes including...
Tipo: Journal Article Palavras-chave: NOD MOUSE; LACRIMAL GLAND; SJÖGREN'S SYNDROME; MICRARRAY; LIPID; APOLIPOPROTEIN F; APOLIPOPROTEIN E.
Ano: 2009 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2010e690fbad&uri=/notices/prodinra1/2010/07/
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Branched-chain fatty acids, increased in tears of blepharitis patients, are not toxic for conjunctival cells Inra
Joffre, C.; Souchier, M.; Leclere, L.; Buteau, B.; Grégoire, S.; Lizard, G.; Montange, T.; Acar, N.; Bron, A.; Creuzot Garcher, C.; Diebold, Y.; Bretillon, L..
Aim: The composition of the meibum of blepharitis patients is characterised by increased levels of branched-chain fatty acids (BCFAs) that return to normal values in patients treated with cyclins and lid hygiene. The aim of this study was to determine if BCFAs had toxic effects on conjunctival cells related to the disease.Methods: Chang and IOBA-NHC conjunctival human cells were treated with BCFAs (isoC16 and isoC20) or palmitic acid as a control for 4 h or 24 h at 50 μM or 100 μM. Morphological and functional changes were investigated by measuring mitochondrial dehydrogenase activity, cell permeability, mitochondrial depolarisation, chromatin condensation, IL-1β and reactive oxygen species production.Results: None of the fatty acids modified the...
Tipo: Journal Article Palavras-chave: DRY EYE; BENZALKONIUM CHLORIDE; EPITHELIAL-CELLS; MUSCLE CELLS; LIPID LAYER; APOPTOSIS; MEMBRANE; MARKER.
Ano: 2009 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD20105cdf51fe&uri=/notices/prodinra1/2010/07/
Registros recuperados: 2
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