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2017 ; 6
(ä): ä Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
The Hippo pathway effector YAP is an essential regulator of ductal progenitor
patterning in the mouse submandibular gland
#MMPMID28492365
Szymaniak AD
; Mi R
; McCarthy SE
; Gower AC
; Reynolds TL
; Mingueneau M
; Kukuruzinska M
; Varelas X
Elife
2017[May]; 6
(ä): ä PMID28492365
show ga
Salivary glands, such as submandibular glands (SMGs), are composed of branched
epithelial ductal networks that terminate in acini that together produce,
transport and secrete saliva. Here, we show that the transcriptional regulator
Yap, a key effector of the Hippo pathway, is required for the proper patterning
and morphogenesis of SMG epithelium. Epithelial deletion of Yap in developing
SMGs results in the loss of ductal structures, arising from reduced expression of
the EGF family member Epiregulin, which we show is required for the expansion of
Krt5/Krt14-positive ductal progenitors. We further show that epithelial deletion
of the Lats1 and Lats2 genes, which encode kinases that restrict nuclear Yap
localization, results in morphogenesis defects accompanied by an expansion of
Krt5/Krt14-positive cells. Collectively, our data indicate that Yap-induced
Epiregulin signaling promotes the identity of SMG ductal progenitors and that
removal of nuclear Yap by Lats1/2-mediated signaling is critical for proper
ductal maturation.
|*Morphogenesis
[MESH]
|Adaptor Proteins, Signal Transducing/*metabolism
[MESH]