関連する実験動画
Updated: Jun 27, 2026

06:40
Seven Steps to Stellate Cells
Published on: May 10, 2011
34.8K
衰老する肝臓のステラート細胞はMASH (レビュー) で炎症と疾患の進行を誘導します
Zhiqi Han1, Yiran She1, Di Wu1
1First Clinical Medical College, Nanjing Medical University, Nanjing, Jiangsu 211166, P.R. China.
Experimental and therapeutic medicine
|February 16, 2026
まとめ
肝臓のステラ細胞 (HSC) の細胞老化は,代謝機能不全に関連したステア肝炎 (MASH) の進行を促します. 衰老細胞をターゲットにすることで,MASHに対する新たな治療戦略が生まれます.
科学分野:
- 肝臓病理学 肝臓病理学
- 細胞生物学 細胞生物学
- 免疫学 免疫学とは
背景:
- 代謝機能障害に関連したステアトヘパチス (MASH) は,ステアトーシス,炎症,線維症を含み,潜在的に肝硬変と癌につながる可能性があります.
- 細胞の老化,特に肝臓の星状細胞 (HSC) の老化は,MASH発達の重要な要因としてますます認識されています.
- 衰老性HSCは二重の役割を果たす:一時的な衰老は保護的であり得るが,持続的な衰老はMASHを悪化させる.
研究 の 目的:
- MASH.でHSCの衰老を誘発する分子メカニズムを見直す.
- HSCの老化に関連した分泌性フェノタイプ (SASP) がMASHの微環境にどのように影響するか調査する.
- MASH治療のための細胞老化を標的とした新興の治療アプローチを強調する.
主な方法:
- 細胞老化とMASHに関する研究の文献レビュー.
- HSCの老化につながる分子経路の分析 (例えば,脂毒性,酸化ストレス).
- 肝細胞,免疫細胞,細胞外マトリックスとのSASP因子の相互作用の検討.
主要な成果:
- 慢性的なストレスは,拡張されたSASPによって特徴づけられる持続的なHSC老化を誘発します.
- SASP要因は,MASHにおける炎症,線維症,免疫機能の調節不全を促進する.
- 衰老するHSCは悪性変異に寄与し,肝細胞がんのリスクを高めます.
結論:
- HSCにおける細胞衰老は,MASHの病原化と進行の重要な要因である.
- セノリチックスやセノモルフィックスによる老化細胞をターゲットにすることは,MASH.に対する有望な治療戦略です.
- バイオマーカー主導の介入は,老化をターゲットとする治療から恩恵を受ける患者を特定することによって,MASH治療をパーソナライズすることができます.
キーワード:
肝臓のステラート細胞肝細胞性癌 (HCC) は,肝細胞性癌 (HCC) と呼ばれています.免疫ミクロ環境肝臓の繊維症は肝臓の繊維症である.代謝機能障害に関連したステア・ヘパтитиス老化に関連した分泌体フェノタイプ.衰老細胞は老朽化した細胞です.セノセラピュティックスさらに関連する動画
06:26Mouse Model of Metabolic Dysfunction-Associated Steatotic Liver Disease with Fibrosis
Published on: July 18, 2025
930
09:32Drug-Induced Senescence in Liver Cells Promotes M2 Macrophage Polarization: Implications for Tyrosine Kinase Inhibitor-Associated Hepatotoxicity
Published on: October 17, 2025
542
関連する概念動画
Mitochondria
Mitochondria are eukaryotic cellular organelles that are known to produce energy through a process called oxidative phosphorylation. Besides their primary function, mitochondria are involved in various cellular processes, including cell growth, differentiation, signaling, metabolism, and senescence. Age-related changes cause a decline in mitochondrial quality and integrity due to increased mitochondrial mutations and oxidative damage. Thus, aging can severely impact mitochondrial functions,...
Electron Transport Chain: Complex I and II
The mitochondrial electron transport chain (ETC) is the main energy generation system in the eukaryotic cells. However, mitochondria also produce cytotoxic reactive oxygen species (ROS) due to the large electron flow during oxidative phosphorylation. While Complex I is one of the primary sources of superoxide radicals, ROS production by Complex II is uncommon and may only be observed in cancer cells with mutated complexes.
ROS generation is regulated and maintained at moderate levels necessary...
ROS generation is regulated and maintained at moderate levels necessary...
Necrosis
Necrosis is considered as an “accidental” or unexpected form of cell death that ends in cell lysis. The first noticeable mention of “necrosis” was in 1859 when Rudolf Virchow used this term to describe advanced tissue breakdown in his compilation titled “Cell Pathology”.
Morphological Manifestations of Necrosis
Necrotic cells show different types of morphological appearance depending on the type of tissue and infection. In coagulative necrosis, cells become anucleated and die, but their...
Morphological Manifestations of Necrosis
Necrotic cells show different types of morphological appearance depending on the type of tissue and infection. In coagulative necrosis, cells become anucleated and die, but their...
Bioactivation and Tissue Toxicity
Bioactivation is a metabolic process that transforms less reactive substances into highly reactive metabolites, initiating tissue toxicity. This transformation can lead to various toxic effects, including carcinogenesis and teratogenesis. Reactive metabolites are classified into two main types: electrophiles and free radicals.Electrophiles are electron-deficient species and are produced primarily by the enzyme cytochrome P-450 during the metabolism of compounds containing carbon, nitrogen, or...
Cirrhosis II: Pathophysiology
Cirrhosis is a progressive chronic liver injury caused by prolonged inflammation, excessive fibrotic remodeling, and impaired regeneration. Over time, repeated hepatic insults disrupt the liver’s architecture and function, leading to reduced blood flow, impaired bile drainage, and diminished metabolic capacity.Pathophysiology of cirrhosisCirrhosis arises from three main responses to chronic liver damage: inflammation, immune activation, and hepatocyte death. These processes lead to structural...