4-MU	4-Methylumbelliferone
MCs	Mast cells
BMMCs	Mouse bone marrow-derived mast cells
DNP	Anti-dinitrophenyl
IgE	immunoglobulin E
DNP-HSA	DNP-human serum albumin
PCA	Passive cutaneous anaphylaxis
ASA	Ovalbumin-induced active systemic anaphylaxis
FcεRI	IgE receptor
ERK	Extracellular signal-regulated kinase
IκBα	Nuclear factor of kappa light polypeptide gene enhancer in B-cells inhibitor, alpha
NF-κB	Nuclear factor kappa-light-chain-enhancer of activated B cells
RBLs	Rat basophilic leukemia cells
JNK	c-jun and N-terminal kinase
FBS	Fetal bovine serum
SD	Standard deviation
PBS	Phosphate buffered saline
ANOVAs	One-way analyses of variance
HRP	Horse radish peroxidase
MAPK	Mitogen-activated protein kinase
GAPDH	Glyceraldehyde 3-phosphate dehydrogenase
Ag	antigen
i.v.	Tail intravenous injection
i.p.	Intraperitoneal injection