Retinal degeneration in transgenic mice induced by oncostatin M through gp130/OSMR? receptor / 中华眼底病杂志
Chinese Journal of Ocular Fundus Diseases
;
(6)2001.
Artigo
em Chinês
| WPRIM
| ID: wpr-524803
ABSTRACT
Objective To determine the signal pathway of specifically expressed oncostatin M(OSM) in lens inducing retinal degeneration in transgenic mice. Methods A sequence-truncated OSM cDNA (661 bp) of mice was linked to ?A-crytallin promoter, and was micro-injected into unicellular embryo to set up the model of transgenic mice. Reversal transcription-polymerase chain reaction (RT-PCR) was used to detect the mRNA expression of gp130/OSMR? receptor in the retinae of OSM transgenic and non-transgenic mice. Rabbit anti-phosphorylated STAT-3 antibody was used to detect the protein expression of phosphorylated STAT-3,and mouse anti-cytochrome C antibody was used to detect the distributing of cytochrome C in retinae. Results Expression of gp130/OSMR? mRNA was found in retina of non-transgenic mice. At the 17.5th day in the embryonic stage, significant accumulation of the phosphorylated STAT-3 was detected in the retinal nucleolus in OSM transgenic retina. At the first day after birth, intensive staining of cytochrome C in OSM transgenic retina was found. Conclusions specifically expressed OSM in lens may act on gp130/OSMR? receptor in retinae, activate STAT-3, and cause the release of cytochrome C from mitochondria, which eventually induces widespread retinal degeneration.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Idioma:
Chinês
Revista:
Chinese Journal of Ocular Fundus Diseases
Ano de publicação:
2001
Tipo de documento:
Artigo
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