ANAs	antinuclear antibodies
BEVs	microbiota-derived extracellular vesicles
CD	Crohn’s disease
COPD	chronic obstructive pulmonary disease
DCs	dendritic cells
FMT	fecal microbiota transplantation
FOS	fructo-oligosaccharides
GI	gastrointestinal
HDACs	histone deacetylases
HLA	human leukocyte antigen
IBD	inflammatory bowel disease
IgA	immunoglobulin A
IgAV	immunoglobulin A vasculitis
IL	interleukin
ILC2	innate lymphoid cells type 2
KD	Kawasaki disease
LPS	lipopolysaccharides
MAMPs	microbial-associated molecular patterns
MAPK	mitogen-activated protein kinase
NF-κB	nuclear factor kappa B
pDCs	plasmacytoid dendritic cells
PRRs	pattern recognition receptors
RA	rheumatoid arthritis
SCFAs	short-chain fatty acids
SLE	systemic lupus erythematosus
Th17	T helper 17
TLR	toll-like receptor
TNF-α	tumor necrosis factor-alpha
Tregs	regulatory T cells
TUDCA	tauroursodeoxycholic acid
UC	ulcerative colitis
UDCA	ursodeoxycholic acid