“…MicroRNAs (miRNAs), are a member of noncoding RNAs, that are highly conservative small RNAs with about 20–22 nucleotides. miRNAs widely exist in multiple cellular organisms and involve in almost all processes of vital activities (Yan et al, ) Numerous studies on the relationship between miRNAs and tumors conducted by scientists have indicated that miRNAs are important in many tumors such as GC, lung cancer, colon cancer, prostatic cancer, thyroid cancer, breast cancer (Ghaedi et al, ; Qi et al, ). For LncRNAs, the modes of action include binding to proteins, chromosome and other macromolecules and involvement in the regulatory network of competing endogenous RNA (ceRNA) (Salmena, Poliseno, Tay, Kats, & Pandolfi, ).…”