Chowdhury Sougata Ghosh, Karmakar Parimal
Department of Life Science and Biotechnology, Jadavpur University, Kolkata, 700032, India.
Mol Biol Rep. 2023 Dec 8;51(1):3. doi: 10.1007/s11033-023-08961-w.
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.
自噬是一个以破坏冗余成分和清除功能失调成分以维持细胞内稳态为特征的过程。自噬失调与多种疾病有关,如神经退行性疾病和癌症。参与自噬的基因的精确转录由一个表观遗传因子网络调控。这包括组蛋白修饰和组蛋白修饰酶。表观遗传学是一类广泛的、可遗传的、基因表达的可逆变化,不包括DNA序列的变化,如染色质重塑、组蛋白修饰和DNA甲基化。除了影响参与自噬的基因外,表观遗传机制还可以改变控制这一过程的信号。在癌症中,自噬一方面通过阻止肿瘤发展发挥双重作用,而这一过程可能会抑制肿瘤进展。这可能是通过控制一个阻止自噬的癌基因来实现的,相反,肿瘤抑制可能会促进自噬。通过更深入地了解自噬复杂的调控框架,可以启动针对自噬相关疾病的新治疗策略的开发。有证据表明,自噬的某些机制和调节因子受到翻译后修饰和表观遗传修饰的影响,这可能导致自噬水平的改变,进而引发疾病或影响药物的治疗效果。本综述的目的是确定与自噬中不同蛋白质的翻译后修饰和表观遗传修饰相关的调控途径,这些途径可能很快成为治疗靶点。