AC	Adenylate cyclase
ADA	Adenosine deaminase
ADP	Adenosine diphosphate
AMP	Adenosine monophosphate
ARs	Adenosine receptors
ATP	Adenosine triphosphate
BAL	Bronchoalveolar lavage fluid
cAMP	Cyclic adenosine monophosphate
CD39	Ectonucleoside triphosphate diphosphohydrolase
CD73	Ecto-5′-nucleotidase
CNS	Central nervous system
COPD	Chronic obstructive pulmonary disease
COX-2	Cyclooxygenase 2
CXCL	Chemokine (C-X-C motif) ligand
DNBS	Dinitrobenzenesulfonic acid
DSS	Dextran sulfate sodium
EAE	Experimental autoimmune encephalomyelitis
ENT	Equilibrative nucleoside transporter
GC	Germinal center
GPCR	G protein-coupled receptor
IBDs	Inflammatory bowel diseases
IDO-1	Indoleamine 2,3 dioxygenase
IFN-γ	Interferon γ
IL	Interleukin
LPS	Lipopolysaccharide
MIP	Macrophage inflammatory protein
NF-kB	Nuclear factor κ-light-chain-enhancer of activated B cells
OA	Osteoarthritis
PEMFs	Pulsed electromagnetic fields
PGE2	Prostaglandin E2
RA	Rheumatoid arthritis
ROS	Reactive oxygen species
TGF-β	Tissue growth factor β
TNBS	2,4,6-trinitrobenzene sulphonic acid
TNF-α	Tumor necrosis factor α
VEGF	Vascular endothelial growth factor