Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 4 de 4
Filtrar
Mais filtros










Base de dados
Intervalo de ano de publicação
4.
J Am Soc Nephrol ; 19(5): 884-90, 2008 May.
Artigo em Inglês | MEDLINE | ID: mdl-18443355

RESUMO

Several gene array studies have suggested that osteopontin (Opn) expression strongly correlates with albuminuria and glomerular disease. Urinary Opn concentration and kidney Opn immunoreactivity were found to be increased in patients with steroid-sensitive nephrotic syndrome. In addition, renal Opn mRNA was increased in the Ins2(Akita) mouse model of type 1 diabetic nephropathy, in the LPS-induced albuminuria model, and in glomeruli of puromycin aminonucleotide-induced nephrotic rats. Opn knockout mice did not develop albuminuria in response to LPS injection, and Opn knockout mice were protected from diabetes-induced albuminuria and mesangial expansion. In the glomerulus, Opn immunostaining was increased specifically in podocytes. Treatment of podocytes with recombinant Opn activated the NF-kappaB pathway, increased expression of urokinase plasminogen activator and matrix metalloproteinases 2 and 9, and increased podocyte motility. Taken together, these results indicate that Opn plays an important role in the development of albuminuria, possibly by modulating podocyte signaling and motility.


Assuntos
Albuminúria/metabolismo , Albuminúria/fisiopatologia , Osteopontina/genética , Osteopontina/metabolismo , Albuminúria/patologia , Animais , Biópsia , Células Cultivadas , Criança , Nefropatias Diabéticas/metabolismo , Nefropatias Diabéticas/patologia , Nefropatias Diabéticas/fisiopatologia , Modelos Animais de Doenças , Humanos , Masculino , Camundongos , Camundongos Endogâmicos C57BL , Camundongos Knockout , Síndrome Nefrótica/metabolismo , Síndrome Nefrótica/patologia , Síndrome Nefrótica/fisiopatologia , Osteopontina/farmacologia , Fenótipo , Podócitos/efeitos dos fármacos , Podócitos/patologia , Podócitos/fisiologia , RNA Mensageiro/metabolismo , Ratos , Ratos Sprague-Dawley , Proteínas Recombinantes/farmacologia , Transdução de Sinais/fisiologia
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA
...