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2016 ; 95
(5
): 105
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SMAD3 Activation: A Converging Point of Dysregulated TGF-Beta Superfamily
Signaling and Genetic Aberrations in Granulosa Cell Tumor Development?
#MMPMID27683263
Fang X
; Gao Y
; Li Q
Biol Reprod
2016[Nov]; 95
(5
): 105
PMID27683263
show ga
Ovarian granulosa cell tumors (GCTs) are rare gynecologic tumors in women. Due to
the rarity and limited research efforts invested, the etiology of GCTs remains
poorly defined. A landmark study has discovered the mutation of forkhead box L2
(FOXL2) as a genetic hallmark of adult GCTs in the human. However, our
understanding of the role of cell signaling in GCT development is far from
complete. Increasing lines of evidence highlight the importance of TGF-beta
(TGFB) superfamily signaling in the pathogenesis of GCTs. This review draws on
findings using genetically modified mouse models and human patient specimens and
cell lines to reveal SMAD3 activation as a potentially key converging point of
dysregulated TGFB superfamily signaling and genetic aberrations in GCT
development. It is anticipated that deciphering the role of TGFB superfamily
signaling cascades in ovarian tumorigenesis will help develop new therapeutic
approaches for GCTs by targeting core signaling elements essential for tumor
initiation, growth, and progression.