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Expression pattern and action analysis of genes associated with the responses to chemical stimuli during rat liver regeneration

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World Journal of Gastroenterology 2006年第45期12卷 7285-729 1页

作者： Shao-Wei Qin Li-Feng Zhao Xiao-Guang Chen Cun-Shuan Xu Key Laboratory for Cell Differentiation Regulation Xinxiang 453007 Henan Province China College of Life Science Henan Normal University Xinxiang 453007 Henan Province China

AIM: To study the genes associated with the responses to chemokines, nutrients, inorganic substances, organic substances and xenobiotics after rat partial hepatectomy (PH) at transcriptional level. METHODS: The associated genes involved in the five kinds of responses were obtained from database and literature, and the gene expression changes during liver regeneration in rats were checked by the Rat Genome 230 2.0 array. RESULTS: It was found that 60, 10, 9, 6, 26 genes respectively participating in the above five kinds of responses were associated with liver regeneration. The numbers of initially and totally expressed genes occurring in the initial phase of liver regeneration (0.5-4 h after PH), G0/G1 transition (4-6 h after PH), cell proliferation (6-66 h after PH), cell differentiation and structure- functional reconstruction (66-168 h after PH) were 51, 19, 52, 6 and 51, 43, 98, 68 respectively, illustrating that the associated genes were mainly triggered in the initiation and transition stages, and functioned at different phases. According to their expression similarity, these genes were classified into 5 groups: only up- regulated (47), predominantly up-regulated (18), only down-regulated (24), predominantly down-regulated (10), and up- and down-regulated (8). The total times of their up-regulated and down-regulated expression were 441 and 221, demonstrating that the number of up- regulated genes is more than that of the down-regulated genes. Their time relevance and gene expression patterns were classifi ed into 14 and 26 groups, showing that the cell physiological and biochemical activitieswere staggered, diversifi ed and complicated during liver regeneration in rats. CONCLUSION: The chemotaxis was enhanced mainly in the forepart and metaphase of LR. The response of regenerating liver to nutrients and chemical substances was increased, whereas that to xenobiotics was not strong. One hundred and seven genes associated with LR play important roles in the respon

关键词： Partial hepatectomy Rat Genome 230 2.0 array Responses to chemical substances genes associated with liver regeneration

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Expression patterns and action analysis of genes associated with blood coagulation responses during rat liver regeneration

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World Journal of Gastroenterology 2006年第42期12卷 6842-6849页

作者： Li-Feng Zhao Wei-Min Zhang Cun-Shuan Xu Faculty of Life Science and Technology Ocean University of China Qingdao 260003 Shandong Province China College of Life Science Henan Normal University Xinxiang 453007 Henan Province China Key Laboratory for Cell Differentiation Regulation Xinxiang 453007 Henan Province China

AIM: To study the blood coagulation response after partial hepatectomy (PH) at transcriptional level. METHODS: After PH of rats, the associated genes with blood coagulation were obtained through reference to the databases, and the gene expression changes in rat regenerating liver were analyzed by the Rat Genome 230 2.0 array. RESULTS: It was found that 107 genes were associated with liver regeneration. The initially and totally expressing gene numbers occurring in initiation phase of liver regeneration (0.5-4 h after PH), G0/G1 transition (4-6 h after PH), cell proliferation (6-66 h after PH), cell differentiation and structure-function reconstruction (66-168 h after PH) were 44, 11, 58, 7 and 44, 33, 100, 71 respectively, showing that the associated genes were mainly triggered in the forepart and prophase, and worked at different phases. According to their expression similarity, these genes were classified into 5 groups: only up-, predominantly up-, only down-, predominantly down-, up- and down-regulation, involving 44, 8, 36, 13 and 6 genes, respectively, and the total times of their up- and down-regulation expression were 342 and 253, respectively, demonstrating that the number of the up-regulated genes was more than that of the down- regulated genes. Their time relevance was classified into 15 groups, showing that the cellular physiological and biochemical activities were staggered during liver regeneration. According to gene expression patterns, they were classified into 29 types, suggesting that their protein activities were diverse and complex during liver ***: The blood coagulation response is enhanced mainly in the forepart, prophase and anaphase of liver regeneration, in which the response in the forepart, prophase of liver regeneration can prevent the bleeding caused by partial hepatectomy, whereas that in the anaphase contributes to the structure-function reorganization of regenerating liver. In the process, 107 genes associated with

关键词： Partial hepatectomy Rat Genome 230 2.0 array Blood coagulation response genes associated with liver regeneration

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Expression patterns and action analysis of genes associated with inflammatory responses during rat liver regeneration

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World Journal of Gastroenterology 2007年第3期13卷 369-377页

作者： Heng-Yi Shao Li-Feng Zhao Cun-Shuan Xu College of Life Science Henan Normal University Xinxiang 453007 Henan Province China Key Laboratory for Cell Differentiation Regulation Xinxiang 453007 Henan Province China

AIM： To study the relationship between inflammatory response and liver regeneration （LR） at transcriptional level.METHODS： After partial hepatectomy （PH） of rats, the genes associated with inflammatory response were obtained according to the databases, and the gene expression changes during LR were checked by the Rat Genome 230 2.0 army. RESULTS： Two hundred and thirty-nine genes were associated with liver regeneration. The initial and total expressing gene numbers found in initiation phase （0.5-4 h after PH）, G0/G1 transition （4-6 h after PH）, cell proliferation （6-66 h after PH）, cell differentiation and structure-function reconstruction （66-168 h after PH） of liver regeneration were 107, 34, 126, 6 and 107, 92, 233, 145 respectively, showing that the associated genes were mainly triggered at the beginning of liver regeneration, and worked at different phases. According to their expression similarity, these genes were classified into 5 groups： only up-regulated, predominantly up-, only down-, predominantly down-, up- and down-, involving 92, 25, 77, 14 and 31 genes, respectively. The total times of their up- and down-regulated expression were 975 and 494, respectively, demonstrating that the expressions of the majority of genes were increased, and that of a few genes were decreased. Their time relevance was classified into 13 groups, showing that the cellular physiological and biochemical activities were staggered during liver regeneration. According to gene expression patterns, they were classified into 33 types, suggesting that the activities were diverse and complex during liver regeneration. CONCLUSION： Inflammatory response is closelyassociated with liver regeneration, in which 239 LR- associated genes play an important role.

关键词： Partial hepatectomy Rat Genome 230 2.0array Inflammatory response genes associated with liver regeneration

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Expression patterns and action analysis of genes associated with physiological responses during rat liver regeneration:Innate immune response

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World Journal of Gastroenterology 2006年第48期12卷 7852-7858页

作者： Guang-Wen Chen Ming-Zhen Zhang Li-Feng Zhao Cun-Shuan Xu College of Life Science Lanzhou University Lanzhou 730000 Gansu Province China College of Life Science Henan Normal University Xinxiang 45300 Henan Province China Key Laboratory for Cell Differentiation Regulation Xinxiang 453007 Henan Province China

AIM： To study the relationship between innate immune response and liver regeneration （LR） at transcriptional level.METHODS： genes associated with innate immunity response were obtained by collecting the data from databases and retrieving articles, Gene expression changes in rat regenerating liver were detected by rat genome 230 2.0 array.RESULTS： A total of 85 genes were found to be associated with LR. The initially and totally expressed number of genes at the phases of initiation [0.5-4 h after partial hepatectomy （PH）], transition from GO to G1 （4-6 h after PH）, cell proliferation （6-66 h after PH）, cell differentiation and structure-function reconstruction （66-168 h after PH） was 36, 9, 47, 4 and 36, 26, 78, 50, respectively, illustrating that the associated genes were mainly triggered at the initial phase of LR and worked at different phases. According to their expression similarity, these genes were classified into 5 types： 41 up-regulated, 4 predominantly up-regulated, 26 downregulated, 6 predominantly down-regulated, and 8 approximately up/down-regulated genes, respectively. The expression of these genes was up-regulated 350 times and down-regulated 129 times respectively, demonstrating that the expression of most genes was enhanced while the expression of a small number of genes was decreased during LR. Their time relevance was classified into 14 groups, showing that the cellular physiological and biochemical activities dudng LR were staggered. According to the gene expression patterns,they were classified into 28 types, indicating that the cellular physiological and biochemical activities were diverse and complicated during LR. CONCLUSION： Congenital cellular immunity is enhanced mainly in the forepart, prophase and anaphase of LR while congenital molecular immunity is increased dominantly in the forepart and anaphase of LR. A total of 85 genes associated with LR play an important role in innate immunity.

关键词： Partial hepatectomy Rat genome 230 2.0 array Innate immune response genes associated with liver regeneration

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Expression patterns and action analysis of genes associated with hepatitis virus infection during rat liver regeneration

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World Journal of Gastroenterology 2006年第47期12卷 7626-7634页

作者： Li-Juan Su Guang-Wei Ding Zhi-Li Yang Shou-Bing Zhang Yu-Xiu Yang Cun-Shuan Xu Faculty of Life Science and Technology Ocean University of China Qingdao 260003 Shandong Province China College of Life Science Henan Normal University Xinxiang 453007 Henan Province China Key Laboratory for Cell Differentiation Regulation Xinxiang 453007 Henan Province China

AIM： To study the action of hepatitis virus infectionassociated genes at transcription level during liver regeneration （LR）. METHODS： Hepatitis virus infection-associated genes were obtained by collecting the data from databases and retrieving the correlated articles, and their expression changes in the regenerating rat liver were detected with the rat genome 230 2.0 array. RESULTS： Eighty-eight genes were found to be associated with liver regeneration. The number of genes initially and totally expressed during initial LR [0.5-4 h affer partial hepatectomy （PH）], transition from （30 to G1 （4-6 h affer PH）, cell proliferation （6-66 h after PH）, cell differentiation and reorganization of structurefunction （66-168 h after PH） was 37, 8, 48, 3 and 37, 26, 80, 57, respectively, indicating that the genes were mainly triggered at the early stage of LR （0.5-4 h after PH）, and worked at different phases. These genes were classified into 5 types according to their expression similarity, namely 37 up-regulated, 9 predominantly upregulated, 34 down-regulated, 6 predominantly downregulated and 2 up/down-regulated genes. Their total up- and down-regulation frequencies were 359 and 149 during LR, indicating that the expression of most genes was enhanced, while the expression of a small number of genes was attenuated during LR. According to time relevance, they were classified into 12 groups （0.5 and 1h, 2 and 4h, 6h, 8 and 12h, 16 and 96h, 18 and 24 h, 30 and 42 h, 36 and 48 h, 54 and 60 h, 66 and 72 h, 120 and 144 h, 168 h）, demonstrating that the cellular physiological and biochemical activities during LR were fluctuated. According to expression changes of the genes, their expression patterns were classified into 23 types, suggesting that the cellular physiological and biochemical activities during LR were diverse and complicated. CONCLUSION： The anti-virus infection capacity of regenerating liver can be enhanced and 88 genes play an important role in LR.

关键词： Partial hepatectomy Rat genome 230 2.0 array Hepatitis virus infection genes associated with liver regeneration

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Expression patterns and action analysis of genes associated with physiological responses during rat liver regeneration:Cellular immune response

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World Journal of Gastroenterology 2006年第46期12卷 7514-7521页

作者： Lian-Xing Zhang Li-Feng Zhao An-Shi Zhang Xiao-Guang Chen Cun-Shuan Xu College of Life Science Henan Normal University Xinxiang 453007 Henan ProvinceChina Key Laboratory for Cell Differentiation Regulation Xinxiang 453007Henan Province China

AIM： To study the cellular immune response during rat liver regeneration （LR） at a transcriptional level. METHODS： genes associated with the cellular immune response were obtained by collecting the data from databases and retrieving articles. Gene expression changes during LR were detected by rat genome 230 2.0 array. RESULTS： A total of 127 genes were found to be associated with LR. The number of initially and totally expressing genes in the initial phase of LR [0.5-4 h after partial hepatectomy （PH）], transition from Go-G, （4-6 h after PH）, cell proliferation （6-66 h after PH）, cell differentiation and structure-function reconstruction （66-168 h after PH） was 54, 11, 34, 3 and 54, 49, 70, 49 respectively, illustrating that the associated genes were mainly triggered at the initiation of LR, and worked at different phases. According to their expression similarity, these genes were classified into 41 up-regulated, 21 predominantly up-regulated, 41 down-regulated, 14 predominantly down-regulated, 10 similarly up-regulated and down-regulated genes, respectively. The total up- and down-regulated expression times were 419 and 274, respectively, demonstrating that the expression of most genes was increased while the expression of a small number of genes was decreased. Their time relevance was classified into 14 groups, showing that the cellular physiological and biochemical activities were staggered during LR. According to the gene expression patterns, they were classified into 21 types, showing the activities were diverse and complicated during LR.CONCLUSION： Antigen processing and presentation are enhanced mainly in the forepart, prophase and anaphase of LR. T-cell activation and antigen elimination are enhanced mainly in the forepart and prophase of LR. A total of 127 genes associated with LR play an important role in cellular immunity.

关键词： Partial hepatectomy Rat genome 230 2.0array Cellular immune response genes associated with liver regeneration

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