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2018 ; 24
(1
): 5-11
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Involvement of epithelial-mesenchymal transition in liver fibrosis
#MMPMID29451178
Yu K
; Li Q
; Shi G
; Li N
Saudi J Gastroenterol
2018[Jan]; 24
(1
): 5-11
PMID29451178
show ga
Fibrosis of the liver is an inherent wound healing response to chronic liver
injury. Regeneration of liver epithelium and restoration of normal liver
structure were generally involved in this process. Although the liver has a
striking capacity to adapt to damage through tissue repair, excessive
accumulation of extracellular matrix during this process often leads to scar
tissue formation and subsequent fibrosis. Epithelial to mesenchymal transition
(EMT) enables a polarized epithelial cell to undergo multiple changes
biochemically and to bear a mesenchymal cell phenotype. EMT plays a critical role
in tissue and organ development and embryogenesis. In the liver, it is proposed
that epithelial cells can acquire fibroblastic phonotype via EMT and contribute
to fibrogenesis. This made EMT a potential target for antifibrotic strategies.
Following an original passion, many investigators devote themselves to exploring
this mechanism in liver fibrosis. However, as research continues, this hypothesis
became highly controversial. The exact contribution of EMT to fibrogenesis was
challenged due to the contradictory results from related studies. In this review,
we summarized the recent advances regarding EMT in hepatic fibrosis and discussed
the potentially involved liver cell types and pathways in order to reach rational
and helpful conclusions.