GC	Gastric Cancer
miR/microRNA	MicroRNA
lncRNA	Long non-coding RNA
mRNA	Messenger RNA
nt	Nucleotides
PDOs	Patient-derived organoids
NAT	Normal tissue adjacent to the tumor
EMT	Epithelial–mesenchymal transition
CRC	Colorectal cancer
HCC	Hepatocellular carcinoma
PAC	Pancreatic cancer
3′-UTR	3′ Untranslated Region
HER2	Human epidermal growth factor receptor 2
PD-L1	Programmed death-ligand 1
qRT-PCR/RT-PCR	Quantitative Real-Time Polymerase Chain Reaction
NC	Negative Control
RRR	Relative Response Ratio
MTS	3-(4,5-dimethylthiazol-2-yl)-5-(3-carboxymethoxyphenyl)-2(4-sulfophenyl)-2H-tetrazolium
dsiRNA	Dicer-substrate siRNA
SD	Standard Deviation
ANOVA	Analysis of variance
TCGA-STAD	The Cancer Genome Atlas—Stomach Adenocarcinoma
ACCDiS	Advanced Center for Chronic Diseases
ICBM	Institute of Biomedical Sciences
CEMC	Center for Studies on Exercise, Metabolism and Cancer
HDSR	Hospital Dr. Sotero del Río
HHHA	Hospital Hernán Henríquez Aravena
TFBCH	Tumor and Fluid Bank, Hospital Clínico Universidad de Chile
dbGaP	Database of Genotypes and Phenotypes
KCNQ1OT1	KCNQ1 opposite strand/antisense transcript 1
RUNX1	Runt-related transcription factor 1