Mallory body formation is associated with epigenetic phenotypic change in hepatocytes in vivo.

Mallory body formation is associated with epigenetic phenotypic change in hepatocytes in vivo. Research Abstract Details 

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Mallory body formation is associated with epigenetic phenotypic change in hepatocytes in vivo. Abstract Text:

Fawzia Bardag-Gorce,Jennifer Dedes,Barbara A French,Joan V Oliva,Jun Li,Samuel W French,

Microarrays were done on the livers of mice fed DDC for 10 weeks, withdrawn 1 month (DDC primed livers) and refed 6 days, and compared with mice fed the control diet. The expression of a large number of genes changed when DDC was fed or refed. A Venn diagram analysis identified 649 genes where gene expression was changed in the same direction. The epigenetic memory of the DDC primed liver involved an increase in the expression of ubiquitin D, alpha fetoprotein, connective tissue growth factor, integrin beta 2, DNA methyl transferase 3a and DNA damage-inducible 45 gamma. DNA methyl transferase 3b was down-regulated as was Cbp/p300. When DDC was refed, DNA methyltransferase and histone deacetylase were up-regulated as shown by microarray analysis. Histone3 lysine9 acetylation was increased by DDC and DDC refeeding and DNA methyltransferases were not changed as shown by Western blot analysis. The data suggest the concept that the epigenetic memory that explains why DDC primed hepatocytes form MBs in 7 days of DDC refeeding is primarily the result of epigenetic modifications of gene expression through changes in histone acetylation and methylation, as well as DNA methylation.

Mallory body formation is associated with epigenetic phenotypic change in hepatocytes in vivo. Publishing Authors By Initials

F Bardag-Gorce,J Dedes,BA French,JV Oliva,J Li,SW French,

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Mallory body formation is associated with epigenetic phenotypic change in hepatocytes in vivo. Journal Published:

PUBLICATION TYPE: Research Support, N.I.H., Extr

Journal: Experimental and molecular pathology

VOLUME: 83

Page Numbers: 160-8

Journal Abbreviation: Exp. Mol. Pathol.

ISSN: 0014-4800

DAY: 30

MONTH: 03

YEAR: 2007

Mallory body formation is associated with epigenetic phenotypic change in hepatocytes in vivo. Information

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LANGUAGE: eng

NlmUniqueID: 370711

Mallory body formation is associated with epigenetic phenotypic change in hepatocytes in vivo. Keywords Mesh Terms:

KEYWORDS: Reverse Transcriptase Polymerase Chain R

MESH TERMS: genetics

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Substance Name: Proteins

Registry Number: 0

Grant and Affiliation Information for Mallory body formation is associated with epigenetic phenotypic change in hepatocytes in vivo.

AFFILIATION: Department of Pathology, Harbor-UCLA Medical Center, 1000 W. Carson St., Torrance, CA 90509, USA.

Country: United States

AGENCY: United States NIAAA

GRANT: P50-AA011999

ACRONYM: AA

MEDLINETA: Exp Mol Pathol

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