BMB	Bone Marrow Barrier
BMECs	Bone Marrow Endothelial Cells
BMSCs	Bone Marrow Stromal Cells
MM	Multiple Myeloma
AML	Acute Myeloid Leukemia
IL	Interleukin
TNF	Tumor Necrosis Factor
ICAM	Intercellular Cell Adhesion Molecule
VCAM-1	Vascular Cell Adhesion Molecule-1
VLA-4	Very Late Antigen-4
BM	Bone Marrow
VEGF	Vascular Endothelial Growth Factor
Ang	Angiopoietin
NO	Nitric Oxide
iNOS	inducible Nitric Oxide Synthase
eNOS	endothelial Nitric Oxide Synthase
MMPs	Matrix Metalloproteinases
EC	Extracellular Matrix
EMM	Extramedullary Multiple Myeloma
MGUS	Monoclonal Gammopathy of Undetermined Significance
SMM	Smoldering Multiple Myeloma
CyPA	Cyclophilin A
siRNA	Small Interfering RNA
AURKA	Aurora Kinase A
EMT	Epithelial–Mesenchymal Transition
Syk	Spleen Tyrosine Kinase
MadCAM-1	Mucosal Vascular Addressin Cell Adhesion Molecule-1
CAM-DR	Cell-Adhesion-Mediated Drug Resistance
SDF-1α	Stromal-Cell-Derived Factor 1α
PPARβ/δ	Peroxisome Proliferator-Activated Receptor β/δ
PGI2	Prostacyclin I2
EGFR	Epidermal Growth Factor Receptor
HB-EGF	Heparin-Binding EGF-like Growth Factor
IGF-1	Insulin-like Growth Factor-1
Epo	Erythropoietin
MRD	Minimal Residual Disease
NGS	Next-Generation Sequencing
MFC	Multiparameter Flow Cytometry
EVs	Extracellular Vesicles
miRNA	microRNA
CAR-T	Chimeric Antigen Receptor-T