Murine cytomegalovirus infection and apoptosis in organotypic retinal cultures.

Murine cytomegalovirus infection and apoptosis in organotypic retinal cultures. Research Abstract Details 

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Murine cytomegalovirus infection and apoptosis in organotypic retinal cultures. Abstract Text:

Ming Zhang,Brendan Marshall,Sally S Atherton,Ming Zhang,Brendan Marshall,Sally S Atherton,Ming Zhang,Brendan Marshall,Sally S Atherton,

PURPOSE: An organotypic retinal culture model was used to determine the pattern of murine cytomegalovirus (MCMV) infection and whether apoptosis is induced in MCMV-infected cultured retinas. METHODS: Retinas harvested from C57BL/6 mice were individually cultured at 37 degrees C on 3-mum filter inserts placed in 24-well plates. Some retinas were infected with MCMV (5 x 10(5) PFU/well). At days 4, 7, and 11 after infection (pi), the culture medium and cultured retinas were collected for examination. RESULTS: Replicating virus was recovered and viral early antigen (EA)- and late antigen (LA)-positive cells were observed in the MCMV-infected retinal cultures. Most MCMV-infected cells were glia and horizontal cells. Infection resulted in atrophy of the photoreceptor cells and cytomegaly. Apoptosis of uninfected bystander cells, including photoreceptor cells and horizontal cells, was observed. TNF-alpha was produced by activated microglia during MCMV infection of the retina. Mouse apoptosis microarray studies, caspase activity studies, and RT-PCR studies showed that the genes involved in both the death receptor-mediated apoptotic pathway and the mitochondrial pathway were upregulated. CONCLUSIONS: Many aspects of MCMV infection of retinal cultures parallel those observed during MCMV retinitis in mice. Thus, this in vitro system may be used to explore the role of apoptosis of uninfected retinal cells and the contribution of cytokines and other modulators to the pathogenesis of CMV retinitis.

Murine cytomegalovirus infection and apoptosis in organotypic retinal cultures. Publishing Authors By Initials

M Zhang,B Marshall,SS Atherton,M Zhang,B Marshall,SS Atherton,M Zhang,B Marshall,SS Atherton,

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Murine cytomegalovirus infection and apoptosis in organotypic retinal cultures. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Investigative ophthalmology & visual science

VOLUME: 49

Page Numbers: 295-303

Journal Abbreviation: Invest. Ophthalmol. Vis. Sci.

ISSN: 0146-0404

DAY: 3

MONTH: Jan

YEAR: 2008

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LANGUAGE: eng

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Grant and Affiliation Information for Murine cytomegalovirus infection and apoptosis in organotypic retinal cultures.

AFFILIATION: Department of Cellular Biology and Anatomy, Medical College of Georgia, Augusta, Georgia.

Country: United States

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MEDLINETA: Invest Ophthalmol Vis Sci

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