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2016 ; 13
(118
): ä Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
Notch-Jagged signalling can give rise to clusters of cells exhibiting a hybrid
epithelial/mesenchymal phenotype
#MMPMID27170649
Boareto M
; Jolly MK
; Goldman A
; Pietilä M
; Mani SA
; Sengupta S
; Ben-Jacob E
; Levine H
; Onuchic JN
J R Soc Interface
2016[May]; 13
(118
): ä PMID27170649
show ga
Metastasis can involve repeated cycles of epithelial-to-mesenchymal transition
(EMT) and its reverse mesenchymal-to-epithelial transition. Cells can also
undergo partial transitions to attain a hybrid epithelial/mesenchymal (E/M)
phenotype that allows the migration of adhering cells to form a cluster of
circulating tumour cells. These clusters can be apoptosis-resistant and possess
an increased metastatic propensity as compared to the cells that undergo a
complete EMT (mesenchymal cells). Hence, identifying the key players that can
regulate the formation and maintenance of such clusters may inform
anti-metastasis strategies. Here, we devise a mechanism-based theoretical model
that links cell-cell communication via Notch-Delta-Jagged signalling with the
regulation of EMT. We demonstrate that while both Notch-Delta and Notch-Jagged
signalling can induce EMT in a population of cells, only Jagged-dominated Notch
signalling, but not Delta-dominated signalling, can lead to the formation of
clusters containing hybrid E/M cells. Our results offer possible mechanistic
insights into the role of Jagged in tumour progression, and offer a framework to
investigate the effects of other microenvironmental signals during metastasis.