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Autophagy—Cell Survival and Death

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Autophagy: Biology and Diseases

Part of the book series: Advances in Experimental Medicine and Biology ((AEMB,volume 1206))

Abstract

Autophagy, which is one of the most important ways to maintain cell homeostasis plays an important regulatory role in cell survival and death. Currently, it is agreed that autophagy promotes or inhibits cell death depending on the internal and external environment and cell type. On the one hand, under normal nutritional conditions autophagy regulates cell survival by energy sensing through the main energy sensing cascade kinases. On the other hand, autophagy regulates the process of cell death. mTOR, Beclin 1, caspases, FLIPs, DAPK, and Tp53 play important regulatory roles in autophagy and apoptosis highlighting the crosstalk between the mechanisms underlying the two death modes. However, energy deficiency caused by PARP1 over-activation and DAPK-PKD pathway activation induces necrosis and autophagy, highlighting the interaction between the two pathways. In addition, autophagy regulates cell death through epigenetic regulation such as histone modification. More investigations on the relationship between autophagy and cell death is ongoing. In the future, there will be more challenges in the study of the relationship between autophagy and cell survival and death. As research increasingly focuses on cell death, the relationship between autophagy and existing and newly discovered cell death types is likely to become more complex. The elucidation of the regulatory role of autophagy in cell survival and death requires more research. Some research results are likely to provide hot topics for further investigations on diseases related to cell death disorders and an experimental basis for the targeted regulation of autophagy for specific treatment of diseases.

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Abbreviations

ACD:

Accidental cell death

AIF:

Apoptosis-inducing factor

AMPK:

Adenosine 5′-monophosphate (AMP)-activated protein kinase

Bruce:

BIR-containing ubiquitin-conjugating enzyme

CMA:

Chaperone-mediated autophagy

CSE:

Cigarette smoke extract

DISC:

Fas-dependent death-inducing signaling complex

DRAM:

Damage-regulated autophagy modulator

FADD:

FAS-associated death domain

FAK:

Focal adhesion kinase

FLICE:

FADD-like interleukin-1 beta-converting enzyme

FLIP:

Flice inhibitory protein

GABARAP-L1:

Γ-aminobutyric acid receptor-associated protein-like 1

HAT:

Histone acetyltransferase

HDAC:

Histone deacetylase

HMGB1:

High mobility group B1

IAPs:

Inhibitor of apoptosis proteins

IFN:

Interferon

IL3:

Interleukin 3

IMS:

Intermembrane space

LAMP2A:

Lysosome-associated membrane protein type 2A

MEF2D:

Myocyte enhancer factor 2D

MEFs:

Mouse embryonic fibroblasts

MFN1:

Mitofusin 1

MOMP:

Mitochondrial outer membrane permeabilization

mTOR:

Mammalian target of rapamycin

NBR1:

The neighbor of BRCA1 gene 1

NCCD:

Nomenclature Committee on Cell Death

PARKIN:

Parkinson’s disease protein

PINK1:

PTEN-induced putative kinase 1

PKA:

Protein kinase A

PKD:

Protein kinase D1

PTP:

Permeability transition pore

RCD:

Regulated cell death

RIP1:

Kinases receptor-interacting protein 1

ROS:

Reactive oxygen species

SMAC:

Second mitochondria-derived activator of caspase

SQSTM1:

Sequestosome 1, p62

TNF:

Tumour necrosis factor

TNF/NGF:

Tumor necrosis factor/nerve growth factor

TRAIL:

TNF-related apoptosis-inducing ligand

VDAC1:

Voltage-dependent anion-selective channel 1

VMP1:

Vacuole membrane protein

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Correspondence to Zhenyi Ma .

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Yan, X., Zhou, R., Ma, Z. (2019). Autophagy—Cell Survival and Death. In: Qin, ZH. (eds) Autophagy: Biology and Diseases. Advances in Experimental Medicine and Biology, vol 1206. Springer, Singapore. https://doi.org/10.1007/978-981-15-0602-4_29

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