AIM: To examine the protein expression alterations in liver injury/repair network regulation as a response to gut-derived lipopolysaccharide (LPS) treatment, in order to anticipate the possible signal molecules or biomarkers in signaling LPS-related liver injury. METHODS: Male BALB/c mice were treated with intra-peritoneal (i.p.) LPS (4 mg/kg) and sacrificed at 0, 6, 24 and 30 h to obtain livers. The livers were stained with hematoxylin and eosin for histopathologic analyses. Total liver protein was separated by two-dimensional gel electrophoresis (2-DE). The peptide mass of liver injury or repair related proteins were drawn up and the protein database was searched to identify the proteins. RESULTS: Observations were as follows: (1) TRAIL-R2 was down regulated in livers of LPS-treated mice. TNFAIP1 was significantly up regulated at 6 h, then down- regulated at 24, 30 h with silent expression during senescent stage. (2) The amount of metaxin 2 and mitochondria import inner membrane translocase subunit TIM8a (TIMM8A) was increased upon treatment with LPS. (3) P34 cdc2 kinase was significantly up-regulated 30 h after LPS administration with silent expression during senescent, 6, 24 h treated stage. (4) The amount of proteasome activator 28 alpha subunit (PA28), magnesium dependent protein phosphatase (MDPP) and lysophospholipase 2 was decreased 6 h after LPS treatment but recovered or up-regulated 24 and 30 h after LPS treatment. CONCLUSION: LPS-treated mouse liver displaying a time-dependent liver injury can result in expression change of some liver injury or repair related proteins.
AIM: To examine the protein expression alterations in liver injury/repair network regulation as a response to gut-derived lipopolysaccharide (LPS) treatment, in order to anticipate the possible signal molecules or biomarkers in signaling LPS-related liver injury. METHODS: Male BALB/c mice were treated with intra-peritoneal (i.p.) LPS (4 mg/kg) and sacrificed at 0, 6, 24 and 30 h to obtain livers. The livers were stained with hematoxylin and eosin for histopathologic analyses. Total liver protein was separated by two-dimensional gel electrophoresis (2-DE). The peptide mass of liver injury or repair related proteins were drawn up and the protein database was searched to identify the proteins. RESULTS: Observations were as follows: (1) TRAIL-R2 was down regulated in livers of LPS-treated mice. TNFAIP1 was significantly up regulated at 6 h, then down- regulated at 24, 30 h with silent expression during senescent stage. (2) The amount of metaxin 2 and mitochondria import inner membrane translocase subunit TIM8a (TIMM8A) was increased upon treatment with LPS. (3) P34 cdc2 kinase was significantly up-regulated 30 h after LPS administration with silent expression during senescent, 6, 24 h treated stage. (4) The amount of proteasome activator 28 alpha subunit (PA28), magnesium dependent protein phosphatase (MDPP) and lysophospholipase 2 was decreased 6 h after LPS treatment but recovered or up-regulated 24 and 30 h after LPS treatment. CONCLUSION:LPS-treated mouse liver displaying a time-dependent liver injury can result in expression change of some liver injury or repair related proteins.
Authors: M D Josephs; F R Bahjat; K Fukuzuka; R Ksontini; C C Solorzano; C K Edwards; C L Tannahill; S L MacKay; E M Copeland; L L Moldawer Journal: Am J Physiol Regul Integr Comp Physiol Date: 2000-05 Impact factor: 3.619
Authors: M Pérez-Ruiz; J Ros; M Morales-Ruiz; M Navasa; J Colmenero; L Ruiz-del-Arbol; P Cejudo; J Clária; F Rivera; V Arroyo; J Rodés; W Jiménez Journal: Hepatology Date: 1999-04 Impact factor: 17.425
Authors: M Fountoulakis; P Berndt; U A Boelsterli; F Crameri; M Winter; S Albertini; L Suter Journal: Electrophoresis Date: 2000-06 Impact factor: 3.535
Authors: E Seki; H Tsutsui; H Nakano; N Tsuji; K Hoshino; O Adachi; K Adachi; S Futatsugi; K Kuida; O Takeuchi; H Okamura; J Fujimoto; S Akira; K Nakanishi Journal: J Immunol Date: 2001-02-15 Impact factor: 5.422