Abstract
Autophagy is a process that is characterized by the destruction of redundant components and the removal of dysfunctional ones to maintain cellular homeostasis. Autophagy dysregulation has been linked to various illnesses, such as neurodegenerative disorders and cancer. The precise transcription of the genes involved in autophagy is regulated by a network of epigenetic factors. This includes histone modifications and histone-modifying enzymes. Epigenetics is a broad category of heritable, reversible changes in gene expression that do not include changes to DNA sequences, such as chromatin remodeling, histone modifications, and DNA methylation. In addition to affecting the genes that are involved in autophagy, the epigenetic machinery can also alter the signals that control this process. In cancer, autophagy plays a dual role by preventing the development of tumors on one hand and this process may suppress tumor progression. This may be the control of an oncogene that prevents autophagy while, conversely, tumor suppression may promote it. The development of new therapeutic strategies for autophagy-related disorders could be initiated by gaining a deeper understanding of its intricate regulatory framework. There is evidence showing that certain machineries and regulators of autophagy are affected by post-translational and epigenetic modifications, which can lead to alterations in the levels of autophagy and these changes can then trigger disease or affect the therapeutic efficacy of drugs. The goal of this review is to identify the regulatory pathways associated with post-translational and epigenetic modifications of different proteins in autophagy which may be the therapeutic targets shortly.
Key Points
1. This review aims to determine the association between the post-translational modulation of autophagy proteins and the regulatory pathways.
2. This review identifies the impact of a variety of autophagic inhibitors and epigenetic drugs on the maintenance and development of the process of autophagy thus revealing the role of these autophagic regulators in cancer therapy.
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Data availability
Not applicable.
Abbreviations
- CMA:
-
Chaperone mediated autophagy
- ELP3:
-
Elongator complex protein 3
- GBM:
-
Glioblastoma multiforme
- HAT:
-
Histone acetyltransferase
- HDAC:
-
Histone deacetylase
- LAMP:
-
Lysosome-associated membrane protein
- MPP:
-
Mitochondrial Processing Peptidase
- mTORC1:
-
Mammalian target of rapamycin complex 1
- NBR1:
-
Neighbor of BRCA1 gene 1
- PAK1:
-
p21-activated kinase 1
- PAS:
-
Phagophore assembly site
- PE:
-
Phosphatidyl ethanolamine
- PTM:
-
Post-translational modification
- SNAP29:
-
Synaptosome associated protein 29
- TFEB:
-
Transcription factor EB
- TOPK:
-
T-LAK cell‐originated protein kinase
- TRAF6:
-
Tumor necrosis factor receptor-associated factor 6
- UVRAG:
-
UV radiation resistance associated
- VAMP8:
-
Vesicle associated membrane protein 8
- ZBTB16:
-
Zinc finger and BTB domain-containing protein 16
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The authors would like to acknowledge the academic fellowship grant from the Department of Science and Technology and Biotechnology, Government of West Bengal.
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Chowdhury, S.G., Karmakar, P. Revealing the role of epigenetic and post-translational modulations of autophagy proteins in the regulation of autophagy and cancer: a therapeutic approach. Mol Biol Rep 51, 3 (2024). https://doi.org/10.1007/s11033-023-08961-w
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DOI: https://doi.org/10.1007/s11033-023-08961-w