lipophagy

Lipopagy
  • 文章类型: Journal Article
    巨自噬/自噬是一个复杂的降解过程,在细胞死亡中具有双重作用,受到所涉及的细胞类型和它们所暴露的应激源的影响。铁凋亡是细胞死亡的铁依赖性氧化形式,其特征是在异质和可塑性机制的背景下不受限制的脂质过氧化。最近的研究揭示了特定类型的自噬的参与(例如,铁蛋白吞噬,吸脂症,和时钟吞噬)通过选择性降解抗损伤蛋白或细胞器来启动或执行铁细胞死亡。相反,其他形式的选择性自噬(例如网状吞噬和细胞自噬)增强了针对铁细胞损伤的细胞防御。调节失调的自噬依赖性铁凋亡对多种病理状况有影响。这篇综述旨在提出自噬依赖性铁性凋亡的最新定义。讨论有影响力的底物和受体,概述实验方法,并提出解释结果的指导方针。
    Macroautophagy/autophagy is a complex degradation process with a dual role in cell death that is influenced by the cell types that are involved and the stressors they are exposed to. Ferroptosis is an iron-dependent oxidative form of cell death characterized by unrestricted lipid peroxidation in the context of heterogeneous and plastic mechanisms. Recent studies have shed light on the involvement of specific types of autophagy (e.g. ferritinophagy, lipophagy, and clockophagy) in initiating or executing ferroptotic cell death through the selective degradation of anti-injury proteins or organelles. Conversely, other forms of selective autophagy (e.g. reticulophagy and lysophagy) enhance the cellular defense against ferroptotic damage. Dysregulated autophagy-dependent ferroptosis has implications for a diverse range of pathological conditions. This review aims to present an updated definition of autophagy-dependent ferroptosis, discuss influential substrates and receptors, outline experimental methods, and propose guidelines for interpreting the results.Abbreviation: 3-MA:3-methyladenine; 4HNE: 4-hydroxynonenal; ACD: accidentalcell death; ADF: autophagy-dependentferroptosis; ARE: antioxidant response element; BH2:dihydrobiopterin; BH4: tetrahydrobiopterin; BMDMs: bonemarrow-derived macrophages; CMA: chaperone-mediated autophagy; CQ:chloroquine; DAMPs: danger/damage-associated molecular patterns; EMT,epithelial-mesenchymal transition; EPR: electronparamagnetic resonance; ER, endoplasmic reticulum; FRET: Försterresonance energy transfer; GFP: green fluorescent protein;GSH: glutathione;IF: immunofluorescence; IHC: immunohistochemistry; IOP, intraocularpressure; IRI: ischemia-reperfusion injury; LAA: linoleamide alkyne;MDA: malondialdehyde; PGSK: Phen Green™ SK;RCD: regulatedcell death; PUFAs: polyunsaturated fatty acids; RFP: red fluorescentprotein;ROS: reactive oxygen species; TBA: thiobarbituricacid; TBARS: thiobarbituric acid reactive substances; TEM:transmission electron microscopy.
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