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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 Apr 2009

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 …


Antioxidant Enzyme Gene Transfer For Ischemic Diseases, Jian Wu Jan 2009

Antioxidant Enzyme Gene Transfer For Ischemic Diseases, Jian Wu

jian duan wu

1. Adv Drug Deliv Rev. 2009 Apr 28;61(4):351-63. Epub 2009 Feb 20. Antioxidant enzyme gene transfer for ischemic diseases. Wu J, Hecker JG, Chiamvimonvat N. Department of Internal Medicine, Transplant Research Program, University of California, Davis Medical Center, Sacramento, CA 95817, USA. jdwu@ucdavis.edu The balance of redox is pivotal for normal function and integrity of tissues. Ischemic insults occur as results of a variety of conditions, leading to an accumulation of reactive oxygen species (ROS) and an imbalanced redox status in the tissues. The oxidant stress may activate signaling mechanisms provoking more toxic events, and eventually cause tissue damage. Therefore, …