Autophagy and gastrointestinal cancers: the behind the scenes role of long non-coding RNAs in initiation, progression, and treatment resistance.

Research Center for Biochemistry and Nutrition in Metabolic Diseases, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran. Department of Biochemistry, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran. Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, 1665659911, Iran. Department of Medical Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran. Student Research Committee, Mashhad University of Medical Sciences, Mashhad, Iran. Department of Medical Biotechnology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran. Medical Physics Department, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran. Research Center for Liver Diseases, Keck School of Medicine, Department of Medicine, University of Southern California, Los Angeles, CA, USA. Student Research Committee, Iran University of Medical Sciences, Iran, Iran. maryam.e.f.azar@gmail.com. Laser Research Centre, Faculty of Health Science, University of Johannesburg, Doornfontein, 2028, South Africa. Hamblin.lab@gmail.com. Research Center for Biochemistry and Nutrition in Metabolic Diseases, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran. mirzaei-h@kaums.ac.ir.

Cancer gene therapy. 2021;(12):1229-1255

Abstract

Gastrointestinal (GI) cancers comprise a heterogeneous group of complex disorders that affect different organs, including esophagus, stomach, gallbladder, liver, biliary tract, pancreas, small intestine, colon, rectum, and anus. Recently, an explosion in nucleic acid-based technologies has led to the discovery of long non-coding RNAs (lncRNAs) that have been found to possess unique regulatory functions. This class of RNAs is >200 nucleotides in length, and is characterized by their lack of protein coding. LncRNAs exert regulatory effects in GI cancer development by affecting different functions such as the proliferation and metastasis of cancer cells, apoptosis, glycolysis and angiogenesis. Over the past few decades, considerable evidence has revealed the important role of autophagy in both GI cancer progression and suppression. In addition, recent studies have confirmed a significant correlation between lncRNAs and the regulation of autophagy. In this review, we summarize how lncRNAs play a behind the scenes role in the pathogenesis of GI cancers through regulation of autophagy.

Methodological quality

Publication Type : Review

Metadata