オートファギーの代謝制御
Lorenzo Galluzzi1, Federico Pietrocola2, Beth Levine3
1Equipe 11 labellisée par la Ligue Nationale contre le Cancer, Centre de Recherche des Cordeliers, 75006 Paris, France; INSERM, U1138, 75006 Paris, France; Université Paris Descartes, Sorbonne Paris Cité, 75005 Paris, France; Université Pierre et Marie Curie, 75005 Paris, France; Gustave Roussy Cancer Campus, 94805 Villejuif, France.
Cell
|December 7, 2014
まとめ
細胞の適応プロセスであるマクロオートファギーは,センサーを使用して代謝変化を検出します. このプロセスは,細胞の健康と有機体のバランスにとって不可欠ですが,その調節は病気で変化することがあります.
科学分野:
- 細胞生物学 細胞生物学
- メタボリズムは
- 生理学 生理学とは
背景:
- マクロオートファジー (オートファジー) は,栄養素の不足などのストレスに適応するための保存された細胞プロセスです.
- オートファージ機構に接続されたセンサーは,代謝の変動を検知します.
- オートファギーは細胞の健康と有機体のホメオスタシスを維持する.
研究 の 目的:
- 代謝経路によるオートファギーの生理学的調節について議論する.
- 病気において,オートファギーの代謝制御がどのように変化するかを調査する.
主な方法:
- オートファギーの調節に関する既存の文献のレビュー.
- オートファジーに影響を与える代謝回路の分析.
- 自殺制御における疾患に関連した変化の検討.
主要な成果:
- オートファギーは,相互接続された代謝シグナル伝達経路によって生理的に調節されます.
- これらの代謝制御の調節不良は,様々な病気に寄与する.
- これらの経路を理解することは,細胞の適応と病気を理解するための鍵です.
結論:
- 代謝回路は,オートファギーの生理学的制御に重要な役割を果たします.
- オートファギーの代謝調節の変化は,疾患の病原化に関与しています.
- これらのメカニズムに関するさらなる研究により,治療目標が明らかになる可能性があります.
さらに関連する動画
関連する概念動画
Autophagy
6.5K
Autophagy is a self-digesting process by which a cell protects itself from threats both within and outside the cell, ranging from abnormal proteins to invading bacteria. In this process, obsolete components of the cell and invading microbes are degraded by hydrolytic enzymes active in an acidic environment of the lysosomal lumen.
An autophagic pathway consists of a series of signaling events activated in response to diverse stress and physiological conditions such as food deprivation,...
An autophagic pathway consists of a series of signaling events activated in response to diverse stress and physiological conditions such as food deprivation,...
6.5K
Delivery Pathways to the Lysosome
10.6K
Eukaryotic cells use different mechanisms to eliminate toxic waste obsolete and worn-out substances. Lysosomes play a pivotal role in this, and hence, these substances are carried to the lysosome from other parts of the cell and extracellular space through different pathways. The most elaborately studied pathways to the lysosome are the endocytic pathways.
Endocytosis
In endocytosis, the cell membrane takes up macromolecules and particles from the surrounding medium. Clathrin-mediated...
Endocytosis
In endocytosis, the cell membrane takes up macromolecules and particles from the surrounding medium. Clathrin-mediated...
10.6K
Autophagic Cell Death
5.1K
Christian de Duve discovered “autophagy,” a process in which cellular components are engulfed by membrane-bound organelles called autophagosomes. The autophagosomes then fuse with lysosomes to digest the enclosed contents. Autophagy is generally activated in cells to prevent cell death. However, cell death is triggered when the damage is beyond repair.
Autophagy and Apoptosis
Autophagy can activate apoptosis. In normal conditions, the autophagy activating protein Beclin-1 and...
Autophagy and Apoptosis
Autophagy can activate apoptosis. In normal conditions, the autophagy activating protein Beclin-1 and...
5.1K
Cellular Injury V: Apoptosis and Autophagy
7
Cells respond to damage and stress through highly coordinated processes that decide whether they survive or undergo controlled self-destruction. Two major pathways involved in this regulation are apoptosis, a type of programmed cell death, and autophagy, a survival mechanism that helps cells adapt to adverse conditions.ApoptosisApoptosis removes aged or injured cells to maintain tissue balance. During this process, the cell shrinks, chromatin condenses and fragments, and membrane-bound...
7
mTOR Signaling and Cancer Progression
5.1K
The mammalian target of rapamycin or mTOR protein was discovered in 1994 due to its direct interaction with rapamycin. The protein gets its name from a yeast homolog called TOR. The mTOR protein complex in mammalian cells plays a major role in balancing anabolic processes such as the synthesis of proteins, lipids, and nucleotides and catabolic processes, such as autophagy in response to environmental cues, such as availability of nutrients and growth factors.
The mTOR pathway or the...
The mTOR pathway or the...
5.1K
Regulation of Metabolism
12.6K
Cellular needs and conditions vary from cell to cell and change within individual cells over time. For example, the required enzymes and energetic demands of stomach cells are different from those of fat storage cells, skin cells, blood cells, and nerve cells. Furthermore, a digestive cell works much harder to process and break down nutrients during the time that closely follows a meal compared with many hours after a meal. As these cellular demands and conditions vary, so do the amounts and...
12.6K


