TY - JOUR
T1 - Betaglycan blocks metastatic behaviors in human granulosa cell tumors by suppressing NF?B-mediated induction of MMP2
AU - Bilandzic, Maree
AU - Wang, Yao
AU - Ahmed, Nuzhat
AU - Luwor, Rodney B
AU - Zhu, Hong-Jian
AU - Findlay, John (Jock) K
AU - Stenvers, Kaye L
PY - 2014
Y1 - 2014
N2 - Metastatic ovarian granulosa cell tumors (GCT) exhibit loss of betaglycan. Here we test the hypothesis that betaglycan blocks GCT metastasis by suppressing NFkappaB/TGFbeta2-induced matrix metalloprotinease-2 (MMP2). Human GCT and a human GCT cell model demonstrated prominent MMP2 expression, which was dependent on NFkappaB activity and stimulated by TGFbeta2 in an NFkappaB-dependent manner. Betaglycan suppressed both basal and TGFbeta2-induced MMP2 expression and countered metastatic behaviors of GCT cells in non-adherent spheroid culture and in vivo xenograft models of metastasis. These data suggest that NFkappaB/TGFbeta2 promotes, and betaglycan impedes, the early stages of GCT metastasis, when tumor cells first invade the peritoneum.
AB - Metastatic ovarian granulosa cell tumors (GCT) exhibit loss of betaglycan. Here we test the hypothesis that betaglycan blocks GCT metastasis by suppressing NFkappaB/TGFbeta2-induced matrix metalloprotinease-2 (MMP2). Human GCT and a human GCT cell model demonstrated prominent MMP2 expression, which was dependent on NFkappaB activity and stimulated by TGFbeta2 in an NFkappaB-dependent manner. Betaglycan suppressed both basal and TGFbeta2-induced MMP2 expression and countered metastatic behaviors of GCT cells in non-adherent spheroid culture and in vivo xenograft models of metastasis. These data suggest that NFkappaB/TGFbeta2 promotes, and betaglycan impedes, the early stages of GCT metastasis, when tumor cells first invade the peritoneum.
UR - http://www.sciencedirect.com/science/article/pii/S0304383514004182
U2 - 10.1016/j.canlet.2014.07.039
DO - 10.1016/j.canlet.2014.07.039
M3 - Article
VL - 354
SP - 107
EP - 114
JO - Cancer Letters
JF - Cancer Letters
SN - 0304-3835
IS - 1
ER -