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Role Of Transglutaminase 2 In Liver Injury Via Cross-Linking And Silencing Of Transcription Factor Sp1., Hideki Tatsukawa, Yayoi Fukaya, Gordon Frampton, Antonio Martinez-Fuentes, Kenji Suzuki, Ting-Fang Kuo, Keisuke Nagatsuma, Kentaro Shimokado, Masataka Okuno, Jian Wu, Siiri Iismaa, Tomokazu Matsuura, Hidekazu Tsukamoto, Mark A Zern, Robert M Graham, Soichi Kojima
Role Of Transglutaminase 2 In Liver Injury Via Cross-Linking And Silencing Of Transcription Factor Sp1., Hideki Tatsukawa, Yayoi Fukaya, Gordon Frampton, Antonio Martinez-Fuentes, Kenji Suzuki, Ting-Fang Kuo, Keisuke Nagatsuma, Kentaro Shimokado, Masataka Okuno, Jian Wu, Siiri Iismaa, Tomokazu Matsuura, Hidekazu Tsukamoto, Mark A Zern, Robert M Graham, Soichi Kojima
jian duan wu
BACKGROUND & AIMS: Despite high morbidity and mortality of alcoholic liver disease worldwide, the molecular mechanisms underlying alcohol-induced liver cell death are not fully understood. Transglutaminase 2 (TG2) is a cross-linking enzyme implicated in apoptosis. TG2 levels and activity are increased in association with various types of liver injury. However, how TG2 induces hepatic apoptosis is not known. METHODS: Human hepatic cells or primary hepatocytes from rats or TG2+/+ and TG2-/- mice were treated with ethanol. Mice were administered anti-Fas antibody or alcohol. Liver sections were prepared from patients with alcoholic steatohepatitis. Changes in TG2 levels, Sp1 cross-linking and its …