ACR	American College of Rheumatology
ADAM	ADAM metalloproteinase domain
ANCA	Anti-neutrophil cytoplasmic antibody
BAFF	B cell activating factor
BCA	B cell-activating chemokine
BLyS	B-lymphocyte stimulator
BREVAS	Belimumab in Remission of VASculitis
CALIBRATE	Rituximab and Belimumab for Lupus Nephritis
CCR	C-C motif chemokine receptor
CD	Cluster of differentiation
CHCC	Chapel Hill Consensus Conference
COMBIVAS	A study of Rituximab and Belimumab Combination therapy in PR3
COVID-19	Coronavirus Disease 2019
EGPA	Eosinophilic granulomatosis with polyangiitis
EMA	European Medicines Agency
ENT	Ear, nose and throat
G-CSF	Granulocyte colony-stimulating factor
GM-CSF	Granulocyte-macrophage colony-stimulating factor
GPA	Granulomatosis with polyangiitis
GWAS	Genome-wide association study
HLA	Human leukocyte antigen
HMGB1	High-mobility-group-protein B1
ICAM	Intercellular adhesion molecule
IFN	Interferon
IL	Interleukin
KIM	Kidney injury molecule
MAINRITSAN	Maintenance of Remission using Rituximab in Systemic ANCA-associated Vasculitis
MCP	Monocyte chemoattractant protein-1
MIF	Migration inhibitory factor
MMP	Matrix metalloproteinase
MPA	Microscopic polyangiitis
MPO	Myeloperoxidase
NET	Neutrophil extracellular trap
NGAL	Neutrophil gelatinase-associated lipocalin
NGF	Nerve growth factor
PAI	Plasminogen activator inhibitor
PDGF	Platelet derived growth factor
PR3	Proteinase 3
RAS	Renin angiotensin-system
RAVE	Rituximab in ANCA-associated vasculitis
RITAZAREM	Rituximab Vasculitis Maintenance Study
RITUXVAS	Rituximab versus cyclophosphamide in ANCA-associated vasculitis
ROS	Reactive oxygen species
SEMA	Semaphorin
sFlt	Soluble Fms-like tyrosine kinase
SOC	Standard of care
ST	Suppression of tumorigenesis
TARC	Thymus and activation-regulated chemokine
Th	T helper
TKT	Transketolase
TNC	Tenascin C
TNF	Tumor necrosis factor
TXA2	Thromboxane A2
WGET	Wegener’s Granulomatosis Etanercept Trial