POSTN	Periostin
TGF-$\mathsf{\beta }$	transforming growth factor-$\mathsf{\beta }$
NOG mice	NOD/Shi-scid, IL-2RγKO mice
KO	konck out
OCT	optical coherence tomography
Ex	exon
KLH	keyhole limpet hemocyanin
HRP	horseradish peroxidase
DAB	3,3′-Diaminobenzidine
Ex17 antibody	antibodies against POSTN C-terminal region exon 17
Ex12 antibody	antibodies against POSTN N-terminal region exon 12
DMEM	Dulbecco’s modified Eagle’s minimum essential medium
DAPI	4′,6-diamidino-2-phenylindole
CLB	cell lysis buffer
EDTA	ethylenediaminetetraacetic acid
QqTOF	quadrupole time-of flight
SA	streptavidin
BSA	bovine serum albumin
TNBC	triple negative breast cancer cells
ECM	extracellular matrix
TGFBI	$\mathsf{\beta }$IgH3
BMP 2	bone morphogenic protein-2
FBS	fetal bovine serum
GAPDH	glyceraldehyde 3-phosphate dehydrogenase
FAS1	fasciclin 1
PN1	full-length POSTN
PN2	POSTN lack of exon 17
PN3	POSTN lack of exon 21
PN4	POSTN lack of exons 17 and 21
PCR	polymerase chain reaction
EMI	EMILIN-1
MMPs	Matrix metalloproteinases