Haploinsuffciency for Znf9 in Znf9+/- mice is associated with multiorgan abnormalities resembling myotonic dystrophy.

Haploinsuffciency for Znf9 in Znf9+/- mice is associated with multiorgan abnormalities resembling myotonic dystrophy. Research Abstract Details 

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Haploinsuffciency for Znf9 in Znf9+/- mice is associated with multiorgan abnormalities resembling myotonic dystrophy. Abstract Text:

Wei Chen,Yucheng Wang,Yoko Abe,Lukas Cheney,Bjarne Udd,Yi-Ping Li,

Myotonic dystrophy type 2 is caused by a (CCTG)/(CCUG)n repeat expansion in the first intron of the ZNF9 gene. The pathomechanism for the myotonic dystrophies is not well understood and the role of ZNF9 in myotonic dystrophy type 2 pathogenesis has not been fully clarified. We characterized Znf9+/- mice, in which the expression of Znf9 was significantly decreased, and found that their phenotype reflects many of the features of myotonic dystrophy, including muscle histological morphology, and myotonic discharges and heart conduction abnormalities, shown by electromyography and electrocardiogram analysis, respectively. Znf9 is normally highly expressed in heart and skeletal muscle, where skeletal muscle chloride channel 1 (Clc1) plays an important role. Clc1 expression was dramatically decreased in Znf9+/- mice. Znf9 transgenic mice raised Znf9 and Clc1 expression and rescued the myotonic dystrophy phenotype in Znf9+/- mice. Our results suggest that the Znf9 haploinsufficiency contributes to the myotonic dystrophy phenotype in Znf9+/- mice.

Haploinsuffciency for Znf9 in Znf9+/- mice is associated with multiorgan abnormalities resembling myotonic dystrophy. Publishing Authors By Initials

W Chen,Y Wang,Y Abe,L Cheney,B Udd,YP Li,

For similar zinc fingers research abstracts see: zinc fingers research

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Haploinsuffciency for Znf9 in Znf9+/- mice is associated with multiorgan abnormalities resembling myotonic dystrophy. Journal Published:

PUBLICATION TYPE: Research Support, Non-U.S. Gov

Journal: Journal of molecular biology

VOLUME: 368

Page Numbers: 8-17

Journal Abbreviation: J. Mol. Biol.

ISSN: 0022-2836

DAY: 9

MONTH: 02

YEAR: 2007

Haploinsuffciency for Znf9 in Znf9+/- mice is associated with multiorgan abnormalities resembling myotonic dystrophy. Information

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LANGUAGE: eng

NlmUniqueID: 2985088

Haploinsuffciency for Znf9 in Znf9+/- mice is associated with multiorgan abnormalities resembling myotonic dystrophy. Keywords Mesh Terms:

KEYWORDS: Zinc Fingers

MESH TERMS: metabolism

Chemical & Substance for Abstract: Haploinsuffciency for Znf9 in Znf9+/- mice is associated with multiorgan abnormalities resembling myotonic dystrophy. Information

Substance Name: Znf9 protein, mouse

Registry Number: 0

Grant and Affiliation Information for Haploinsuffciency for Znf9 in Znf9+/- mice is associated with multiorgan abnormalities resembling myotonic dystrophy.

AFFILIATION: Department of Cytokine Biology, The Forsyth Institute, Boston, MA 02115, USA.

Country: England

AGENCY: United States NIAMS

GRANT: AR-48133

ACRONYM: AR

MEDLINETA: J Mol Biol

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