Dysregulation of lncRNA in Helicobacter pylori-Infected Gastric Cancer Cells

Table 1

Subtypes of lncRNA introduced according to the recent studies.

Name	Length (nt)	Function	Example	References
Intergenic	828	Control the expression of both near and remote genes	LINC00152, H19, IPW, MEG3	[35–37]
Intragenic	—	Attach to promoters and enhancers	RUNXOR	[35, 39]
Enhancer	—	Specific enhancer–promoter looping, gene expression	IG-DMR eRNAs	[35, 56]
Antisense	—	Gene regulation, X-inactivation, imprinting, and epigenetic regulation	KCNQ1OT1, AIRN, NESPAS, Ube3a-ATS, ANRIL	[42–44]
sno-lncRNAs	—	Contribute in the pathogenesis of PWS	—	[42–44]
circRNAs	Under 100 nt to over 4 kb	Related with disease phenotype	cANRIL	[42–45]
ciRNAs	—	Gene transcription	—	[42–45]

lncRNAs: long noncoding RNAs; LINC00152: long intergenic non-protein-coding RNA152; IPW: imprinted gene in the Prader-Willi syndrome region; MEG3: maternally expressed gene 3; RUNXOR: RUNX1 overlapping RNA; IG-DMR: intergenic differentially methylated region; KCNQ1OT1: KCNQ1 opposite strand/antisense transcript 1; AIRN: antisense of insulin-like growth factor-2 receptor RNA noncoding; UBE3A-ATS: UBE3A antisense transcript; ANRIL: antisense noncoding RNA in the INK4 locus.