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2016 ; 5
(4
): ä Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
Osteopontin-A Master Regulator of Epithelial-Mesenchymal Transition
#MMPMID27023622
Kothari AN
; Arffa ML
; Chang V
; Blackwell RH
; Syn WK
; Zhang J
; Mi Z
; Kuo PC
J Clin Med
2016[Mar]; 5
(4
): ä PMID27023622
show ga
Osteopontin (OPN) plays an important functional role in both physiologic and
pathologic states. OPN is implicated in the progression of fibrosis, cancer, and
metastatic disease in several organ systems. The epithelial-mesenchymal
transition (EMT), first described in embryology, is increasingly being recognized
as a significant contributor to fibrotic phenotypes and tumor progression.
Several well-established transcription factors regulate EMT and are conserved
across tissue types and organ systems, including TWIST, zinc finger E-box-binding
homeobox (ZEB), and SNAIL-family members. Recent literature points to an
important relationship between OPN and EMT, implicating OPN as a key regulatory
component of EMT programs. In this review, OPN's interplay with traditional EMT
activators, both directly and indirectly, will be discussed. Also, OPN's ability
to restructure the tissue and tumor microenvironment to indirectly modify EMT
will be reviewed. Together, these diverse pathways demonstrate that OPN is able
to modulate EMT and provide new targets for directing therapeutics.