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Targeting Autophagy Using Long Non-Coding RNAs (LncRNAs): New Landscapes in the Arena of Cancer Therapeutics

Journal

CELLS
Volume 12, Issue 5, Pages -

Publisher

MDPI
DOI: 10.3390/cells12050810

Keywords

lncRNAs; autophagy; cancer; therapeutics

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Cancer is a global health hazard causing 10 million deaths in 2020, and although different treatment approaches have improved overall survival, advanced-stage treatment still has poor outcomes. Autophagy, a catabolic process, plays a role in cancer by maintaining cellular homeostasis and has both tumor-promoting and suppressive effects. Recent research has identified long non-coding RNAs (lncRNAs) as regulators of autophagy and their modulation of various cancer hallmarks. This review discusses the mechanistic role of lncRNAs in modulating autophagy and related proteins in different cancers.
Cancer has become a global health hazard accounting for 10 million deaths in the year 2020. Although different treatment approaches have increased patient overall survival, treatment for advanced stages still suffers from poor clinical outcomes. The ever-increasing prevalence of cancer has led to a reanalysis of cellular and molecular events in the hope to identify and develop a cure for this multigenic disease. Autophagy, an evolutionary conserved catabolic process, eliminates protein aggregates and damaged organelles to maintain cellular homeostasis. Accumulating evidence has implicated the deregulation of autophagic pathways to be associated with various hallmarks of cancer. Autophagy exhibits both tumor-promoting and suppressive effects based on the tumor stage and grades. Majorly, it maintains the cancer microenvironment homeostasis by promoting viability and nutrient recycling under hypoxic and nutrient-deprived conditions. Recent investigations have discovered long non-coding RNAs (lncRNAs) as master regulators of autophagic gene expression. lncRNAs, by sequestering autophagy-related microRNAs, have been known to modulate various hallmarks of cancer, such as survival, proliferation, EMT, migration, invasion, angiogenesis, and metastasis. This review delineates the mechanistic role of various lncRNAs involved in modulating autophagy and their related proteins in different cancers.

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