Serous Ovarian Cancer (SOC) Assignment

Serous Ovarian Cancer (SOC) Assignment

Here we sought to determine the relationship between STAT3 activity and Galectin-3 (Gal-3) and to investigate the cytotoxic effect of PectaSol-C Modified Citrus Pectin (Pect-MCP) as a specific competitive inhibitor of Galectin-3 (Gal-3) in combination with paclitaxel (PTX) to kill ovarian cancer cell multicellular tumor spheroid (MCTS). SKOV-3 cells in 2D and 3D culture were treated with exogenous Gal-3 for assessment of STAT3 activity. Two-way ANOVA main effect and IC50 of each drug Paclitaxel (PTX) and Pect-MCP or in combination were obtained from MTT assay results.Serous Ovarian Cancer (SOC) Assignment

The phosphorylated STAT3 levels, migration, invasion, integrin mRNA and p-AKTser473 levels were assessed in the absence or presence of each drug alone or in combination. Gal-3 expression levels were assessed in human serous ovarian cancer (SOC) specimens and its correlation with different integrin mRNA levels was further assessed. Gal-3 triggered STAT3 phosphorylation and its expression was significantly increased in MCTS compared to monolayer SKOV-3 cells. Moreover, Pect-MCP synergized with PTX to kill SKOV3 MCTS and abrogated STAT3 activity. Moreover, Pect-MCP significantly reduced integrin mRNA levels leading to reduced AKT activity.Serous Ovarian Cancer (SOC) Assignment