| pubmed-article:21216283 | rdf:type | pubmed:Citation | lld:pubmed |
| pubmed-article:21216283 | lifeskim:mentions | umls-concept:C0026850 | lld:lifeskim |
| pubmed-article:21216283 | lifeskim:mentions | umls-concept:C0007595 | lld:lifeskim |
| pubmed-article:21216283 | lifeskim:mentions | umls-concept:C0037083 | lld:lifeskim |
| pubmed-article:21216283 | lifeskim:mentions | umls-concept:C0164786 | lld:lifeskim |
| pubmed-article:21216283 | lifeskim:mentions | umls-concept:C0038952 | lld:lifeskim |
| pubmed-article:21216283 | lifeskim:mentions | umls-concept:C0033414 | lld:lifeskim |
| pubmed-article:21216283 | lifeskim:mentions | umls-concept:C0812228 | lld:lifeskim |
| pubmed-article:21216283 | lifeskim:mentions | umls-concept:C1710082 | lld:lifeskim |
| pubmed-article:21216283 | lifeskim:mentions | umls-concept:C1879547 | lld:lifeskim |
| pubmed-article:21216283 | pubmed:issue | 4 | lld:pubmed |
| pubmed-article:21216283 | pubmed:dateCreated | 2011-2-21 | lld:pubmed |
| pubmed-article:21216283 | pubmed:abstractText | Transgenic expression of the ?7 integrin can ameliorate muscle pathology in a mouse model of Duchenne muscular dystrophy (mdx/utr(-/-)) and thus can compensate for the loss of dystrophin in diseased mice. In spite of the beneficial effects of the ?7 integrin in protecting mice from dystrophy, identification of molecular signaling events responsible for these changes remains to be established. The purpose of this study was to determine a role for signaling in the amelioration of muscular dystrophy by ?7 integrin. Activation of PI3K, ILK, AKT, mTOR, p70S6K, BAD, ERK, and p38 was measured in the muscle from wild type (WT), mdx/utr(-/-) and ?7BX2-mdx/utr(-/-) mice using in vitro activity assays or phosphospecific antibodies and western blotting. Significant increases in PI3K activity (47%), ILK activity (2.0-fold), mTOR (Ser2448) (57%), p70S6K (Thr389) (11.7-fold), and ERK (Thr202/Tyr204) (66%) were demonstrated in dystrophic mdx/utr(-/-) muscle compared to WT. A significant decrease in p38 phosphorylation (2.9-fold) was also observed. Although most of these signaling events were similar in dystrophic mdx/utr(-/-) mice overexpressing the ?7 integrin, the AKT (Ser473):AKT ratio (2-fold vs. WT) and p70S6K phosphorylation (18-fold vs. WT) were higher in ?7BX2-mdx/utr(-/-) compared to mdx/utr(-/-) mice. In addition, increased phosphorylation of BAD Serine 112 may contribute to the significant reduction in TUNEL(+) cells observed in ?7BX2-mdx/utr(-/-) mice. We conclude that the ?7?1 integrin confers a protective effect in dystrophic muscle through the activation of the ILK, AKT, p70S6K and BAD signaling to promote muscle cell survival. | lld:pubmed |
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| pubmed-article:21216283 | pubmed:language | eng | lld:pubmed |
| pubmed-article:21216283 | pubmed:journal | http://linkedlifedata.com/r... | lld:pubmed |
| pubmed-article:21216283 | pubmed:citationSubset | IM | lld:pubmed |
| pubmed-article:21216283 | pubmed:chemical | http://linkedlifedata.com/r... | lld:pubmed |
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| pubmed-article:21216283 | pubmed:status | MEDLINE | lld:pubmed |
| pubmed-article:21216283 | pubmed:month | Apr | lld:pubmed |
| pubmed-article:21216283 | pubmed:issn | 0006-3002 | lld:pubmed |
| pubmed-article:21216283 | pubmed:author | pubmed-author:KaufmanStephe... | lld:pubmed |
| pubmed-article:21216283 | pubmed:author | pubmed-author:BoppartMarni... | lld:pubmed |
| pubmed-article:21216283 | pubmed:author | pubmed-author:BurkinDean... | lld:pubmed |
| pubmed-article:21216283 | pubmed:copyrightInfo | Copyright © 2010 Elsevier B.V. All rights reserved. | lld:pubmed |
| pubmed-article:21216283 | pubmed:issnType | Print | lld:pubmed |
| pubmed-article:21216283 | pubmed:volume | 1812 | lld:pubmed |
| pubmed-article:21216283 | pubmed:owner | NLM | lld:pubmed |
| pubmed-article:21216283 | pubmed:authorsComplete | Y | lld:pubmed |
| pubmed-article:21216283 | pubmed:pagination | 439-46 | lld:pubmed |
| pubmed-article:21216283 | pubmed:dateRevised | 2011-7-27 | lld:pubmed |
| pubmed-article:21216283 | pubmed:meshHeading | pubmed-meshheading:21216283... | lld:pubmed |
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