CFSE	Carboxyfluorescein succinimidyl ester
CTL	Cytotoxic T- Lymphocyte
DC	Dendritic Cell
DMEM/F12	Dulbecco’s Modified Eagle Medium/Nutrient Mixture F-12
DPBS	Dulbecco’s Phosphate-Buffered Saline
DSP	Digital Spatial Profiling
EV	Empty Vector
FCS	Fetal Bovine Serum
FGF-10	Fibroblast Growth Factor 10
GMCSF	Granulocyte-Macrophage Colony Stimulating Factor
HBSS	Hank’s Balanced Salt Solution
HER2	Human epidermal growth factor receptor 2
huTGO	Human gastric tumor-derived organoids
IDO-1	Indoleamine 2,3-Dioxygenase 1
KD	Knock Down
MDSC	Myeloid-Derived Suppressor Cell
NAF	Nuclear area factor
NSG	NOD Scid Gamma
PD-1	Program Death 1
PD-l1	Program Death Ligand 1
PMN-MDSC	Polymorphonuclear MDSC
ROI	Region of Interest
ROS	Reactive Oxygen Species
SMA	Smooth Muscle Actin
TAM	Tumor-associated macrophages
TGFβ	Transforming Growth Factor beta
TMA	Tissue microarrays
TME	Tumor Microenvironment
Treg	Regulatory T cell
VEGF	Vascular Endothelial Growth Factor
VISTA	V-domain Ig Suppressor of T Cell Activation