αCGL	cholesteryl α-glucoside
αCgT	cholesteryl α-glucosyltransferase
AlpA	adherence-associated lipoprotein A
AlpB	adherence-associated lipoprotein B
AmiE and AmiF	aliphatic amidases—E and F
ASPP2	apoptosis-stimulating protein of p53 2
BabA	blood group antigen binding fadhesin
cagPAI	cag pathogenicity island
CEACAM	carcinoembryonic antigen-related cell adhesion molecules
Cu/Zn-SOD	copper-zinc superoxide dismutase
CXCR7	CXC chemokine receptor 7
Dps	DNA-protecting protein under severe conditions
DupA	duodenal ulcer promoting gene A
EC-SOD	extracellular matrix superoxide dismutase
EMT	epithelial-mesenchymal transition
GC	gastric cancer
GGT	γ-glutamyl-transpeptidase
GERD	gastroesophageal reflux disease
GSK-3	glycogen synthase kinase 3
H. pylori	Helicobacter pylori
HopQ	Helicobacter pylori outer membrane protein Q
HopZ	Helicobacter pylori outer membrane protein Z
Hsps	heat shock proteins
HtrA	high temperature requirement A
IBD	inflammatory bowel disease
IceA	induced by contact with epithelium gene A
iNOS	nitric oxide synthase
LabA	LacdiNAc-specific adhesin
(Le) antigens	Lewis antigens
LPS	lipopolysaccharide
LRP-1	lipoprotein receptor-related protein-1
MALT	mucosa-associated lymphoid tissue lymphoma
MAP	mitogen-activated protein
MAPK	mitogen-activated protein kinase
MD-2	myeloid differential protein-2
MHC	major histocompatibility complex
MMP-1	matrix metalloproteinase 1
Mn-SOD	manganese superoxide dismutase
Mox1	mitogen oxidase 1
NAP	neutrophil-activating protein
NUD	non-ulcer dyspepsia
OipA	outer inflammatory protein A
OMP	outer membrane protein
OMPLA	outer membrane phospholipase A
OMVs	outer membrane vesicles
PAI-2	plasminogen activator inhibitor-2
PD-1	programmed death-ligand 1
PDCD4	programmed cell death protein 4
PLA1	phospholipase A1
PLA2	phospholipase A2
PLC	phospholipase C
PLC–IP3	phospholipase C – inositol 1,4,5-trisphosphate
PLD	phospholipase D
ROS	reactive oxygen species
RPTPα	receptor-like protein tyrosine phosphatases β
RPTPβ	receptor-like protein tyrosine phosphatases α
RUNX3	run-related transcription factor 3
SabA	sialic acid–binding adhesin
SOD	superoxide dismutase
T4SS	type 4 secretion system
TF	tissue factor
TFF	trefoil factor family
TGF-β1	transforming growth factor-beta 1
TLR4	toll-like receptor 4
TNF-α	tumor necrosis factor alpha
VacA	vacuolating cytotoxin
Vn	vitronectin
WHO	World Health Organization
YAP	yes-associated protein