BMMϕ	Bone Marrow-derived Macrophage
DAPI	4’,6-diamidino-2-phenylindole
DLS	Dynamic Light Scattering
DMOAD	Disease Modifying Osteoarthritis Drug
EDTA	Ethylenediaminetetraacetic acid
eGFP	enhanced Green Fluorescent Protein
ECM	Extracellular Matrix
FBS	Fetal Bovine Serum
FGF	Fibroblast Growth Factor
GM-CSF	Granulocyte-Macrophage Colony Stimulating Factor
HA	Hyaluronic acid
IA	Intra-articular
IL	Interleukin
IRB	Institutional Review Board
mRNA	messenger RNA
NP	Nanoparticle
nt	Nucleotide
OA	Osteoarthritis
OCT	Optimum Cutting Temperature
RNA	Ribonucleic acid
siRNA	small interfering RNA
TEM	Transmission Electron Microscopy
TNF	Tumor Necrosis Factor
TUNEL	Terminal deoxynucleotidyl transferase-mediated dUTP nick end labeling
WNT	Wingless and the name Int-1