Xin_2020_J.Biochem_168_465

Gastric cancer (GC) is one of the most common cancers in gastrointestinal malignant tumours. Long non-coding RNAs were widely reported to play a significant role in the regulation of occurrence or development of tumours. Bioinformatics analysis and a wide range of experiments were conducted to explore the expression status, specific function and molecular mechanism of long non-coding RNA ABHD11 antisense RNA 1 (ABHD11-AS1). ABHD11-AS1 knockdown repressed cell proliferation but enhanced cell apoptosis in function. We proved that miR-361-3p directly combines with the 3'wUTR of PDPK2 and ABHD11-AS1 cooperated with miR-361-3p to modulate PDPK2 mRNA and protein levels. Rescue assays confirmed that the miR-361-3p silence reversed the suppressive effect of ABHD11-AS1 deficiency. In summary, ABHD11-AS1 boosts GC development by regulating miR-361-3p/PDPK1 signalling.