Importance of CCL25 in the attraction of T cells and the role of IL-7 on the signaling pathways in intestinal epithelial cells

Calabrese, Graciela Cristina; Luczak, Erica Natalia; Roux, M

doi:10.1016/j.imbio.2008.12.008

Cited by 2 publications

(1 citation statement)

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“…Isolated aortic cells were homogenized and fractionated by ultracentrifugation as described previously (Calabrese et al 2009) to obtain the microsome. Glucose-6-phosphatase activity was determined as microsomal marker (Barfell et al 2011).…”

Section: Western Blot Of Isolated Aortic Cellsmentioning

confidence: 99%

Atheroprotective remodelling of vascular dermatan sulphate proteoglycans in response to hypercholesterolaemia in a rat model

Oberkersch

Maccari

Bravo³

et al. 2014

Int J Experimental Path

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Proteoglycan accumulation within the arterial intima has been implicated in atherosclerosis progression in humans. Nevertheless, hypercholesterolaemia is unable to induce intimal thickening and atheroma plaque development in rats. The study was performed to analyse proteoglycans modifications in rats fed with a high-cholesterol diet to understand whether vascular wall remodelling protects against lesions. Sections obtained from rat aortas showed normal features, in intimal-to-media ratio and lipid accumulation. However, focal endothelial hyperplasia and neo-intima rearrangement were observed in high-cholesterol animals. Besides, hypercholesterolaemia induced an inflammatory microenviroment. We determined the expression of different proteoglycans from aortic cells by Western blot and observed a diminished production of decorin and biglycan in high-cholesterol animals compared with control (P < 0.01 and P < 0.05, respectively). Versican was increased in high-cholesterol animals (P < 0.05), whereas perlecan production showed no differences. No modification of the total content of glycosaminoglycans (GAGs) was found between the two experimental groups. In contrast, the chondroitin sulphate/dermatan sulphate ratio was increased in the high-cholesterol group as compared to the control (0.56 and 0.34, respectively). Structural alterations in the disaccharide composition of galactosaminoglycans were also detected by HPLC, as the ratio of 6-sulphate to 4-sulphate disaccharides was increased in high-cholesterol animals (P < 0.05). Our results suggest that attenuation of decorin and biglycan expression might be an effective strategy to inhibit the first step in atherogenesis, although specific GAG structural modification associated with the development of vascular disease took place. Results emphasize the potential application of therapies based on vascular matrix remodelling to treat atherosclerosis.

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Section: Western Blot Of Isolated Aortic Cellsmentioning

confidence: 99%