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.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Cancer+Discov
2013 ; 3
(6
): 674-89
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
Canonical Wnt/?-catenin signaling drives human schwann cell transformation,
progression, and tumor maintenance
#MMPMID23535903
Watson AL
; Rahrmann EP
; Moriarity BS
; Choi K
; Conboy CB
; Greeley AD
; Halfond AL
; Anderson LK
; Wahl BR
; Keng VW
; Rizzardi AE
; Forster CL
; Collins MH
; Sarver AL
; Wallace MR
; Schmechel SC
; Ratner N
; Largaespada DA
Cancer Discov
2013[Jun]; 3
(6
): 674-89
PMID23535903
show ga
Genetic changes required for the formation and progression of human Schwann cell
tumors remain elusive. Using a Sleeping Beauty forward genetic screen, we
identified several genes involved in canonical Wnt signaling as potential drivers
of benign neurofibromas and malignant peripheral nerve sheath tumors (MPNSTs). In
human neurofibromas and MPNSTs, activation of Wnt signaling increased with tumor
grade and was associated with downregulation of ?-catenin destruction complex
members or overexpression of a ligand that potentiates Wnt signaling, R-spondin 2
(RSPO2). Induction of Wnt signaling was sufficient to induce transformed
properties in immortalized human Schwann cells, and downregulation of this
pathway was sufficient to reduce the tumorigenic phenotype of human MPNST cell
lines. Small-molecule inhibition of Wnt signaling effectively reduced the
viability of MPNST cell lines and synergistically induced apoptosis when combined
with an mTOR inhibitor, RAD-001, suggesting that Wnt inhibition represents a
novel target for therapeutic intervention in Schwann cell tumors.