ID | 119324 |
Title Alternative | X box-binding protein1を介した小胞体ストレス応答不全は非アルコール性脂肪肝炎モデルマウスにおける肝部分切除後の肝再生不良の主要な要因である
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Author |
Miyazaki, Katsuki
Tokushima University
Saito, Yu
Tokushima University
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Ichimura-Shimizu, Mayuko
Tokushima University
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Ikemoto, Tetsuya
Tokushima University
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Yamada, Shinichiro
Tokushima University
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Tokuda, Kazunori
Tokushima University
Morine, Yuji
Tokushima University
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Keywords | Nonalcoholic steatohepatitis
hepatectomy
liver regeneration
endoplasmic reticulum stress response
lipid droplets
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Content Type |
Thesis or Dissertation
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Description | Background
Non-alcoholic fatty liver disease (NAFLD) is the most common chronic liver disease. Poor regeneration after hepatectomy in NAFLD is well recognized, but the mechanism is unclear. Endoplasmic reticulum (ER) stress plays an important role in the development of NAFLD. Here, we show that an impaired ER stress response contributes to poor liver regeneration in partially hepatectomized mice. Methods Non-alcoholic fatty liver (NAFL) or non-alcoholic steatohepatitis (NASH) was induced in mice using our patented feed and 70% partial hepatectomy (PH) was performed. Mice were sacrificed 0, 4, 8, 24, or 48 hours, or 7 days after PH, and liver regeneration and the mRNA expression of ER stress markers were assessed. Results NAFLD activity score was calculated as 4–6 points for NAFL and 7 points for NASH. NASH was characterized by inflammation and high ER stress marker expression before PH. After PH, NASH mice showed poorer liver regeneration than controls. High expression of proinflammatory cytokine genes was present in NASH mice 4 hours after PH. Xbp1-s mRNA expression was high in control and NAFL mice after PH, but no higher in NASH mice. Conclusions Dysfunction of the ER stress response might be a cause of poor liver regeneration in NASH. |
Journal Title |
Journal of Hepato-Biliary-Pancreatic Sciences
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ISSN | 18686974
18686982
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NCID | AA12507209
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Publisher | Japanese Society of Hepato‐Biliary‐Pancreatic Surgery|Wiley
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Volume | 29
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Issue | 12
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Start Page | 1241
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End Page | 1252
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Published Date | 2022-03-24
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Remark | 内容要旨・審査要旨・論文本文の公開
本論文は,著者Katsuki Miyazakiの学位論文として提出され,学位審査・授与の対象となっている。 This is the peer reviewed version of the following article: Miyazaki, K., Saito, Y.,Ichimura-Shimizu, M., Imura, S., Ikemoto, T., Yamada, S., Tokuda, K., Morine, Y., Tsuneyama, K., Shimada, M., (2022), Defective endoplasmic reticulum stress response via X box-binding protein 1 is a major cause of poor liver regeneration after partial hepatectomy in mice with non-alcoholic steatohepatitis. Journal of Hepato-Biliary-Pancreatic Sciences, 29, 12, 1241-1252., which has been published in final form at https://doi.org/10.1002/jhbp.1142. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. This article may not be enhanced, enriched or otherwise transformed into a derivative work, without express permission from Wiley or by statutory rights under applicable legislation. Copyright notices must not be removed, obscured or modified. The article must be linked to Wiley’s version of record on Wiley Online Library and any embedding, framing or otherwise making available the article or pages thereof by third parties from platforms, services and websites other than Wiley Online Library must be prohibited. |
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DOI (Published Version) | |
URL ( Publisher's Version ) | |
FullText File | |
language |
eng
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TextVersion |
ETD
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MEXT report number | 甲第3791号
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Diploma Number | 甲医第1604号
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Granted Date | 2024-03-21
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Degree Name |
Doctor of Medical Science
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Grantor |
Tokushima University
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departments |
Medical Sciences
University Hospital
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