Skip to main content
Figure 7 | Molecular Cancer

Figure 7

From: Lipid phosphate phosphatase-3 regulates tumor growth via β-catenin and Cyclin-D1 signaling

Figure 7

Domains involved in the regulation of SW480 tumor growth. (A) Schematics of pLNCX2-based retroviral constructs (a-e). Empty red and blue circles indicate the relative positions of lipid phosphatase and RGD cell adhesion domains, respectively. Filled red and blue circles indicate phosphatase-inactive (PI) and RAD (adhesion defective) domains, respectively. Black boxes represent transmembrane segments. Three copies of hemagglutinin (HA) epitopes were fused to the N-terminal and in-frame to the open reading frame of the cDNAs. (B) Equivalent protein expression and phosphorylation states of β-catenin and CYCLIN-D1 proteins were analyzed by immunoblotting with anti-HA, anti-β-catenin, anti-p-β-catenin, and anti-CYCLIN-D1 antibodies. Equal loading of proteins across the lanes were determined with the anti-GRB-2 antibody. All blots are representative of those obtained in at least three separate experiments with similar results. (C) LPP3 expression potentiates SW480 tumor growth. Nude mice were injected subcutaneously with SW480 cells (~ 2 × 104) expressing the indicated constructs. After 21 days, the tumor outgrowths were measured and photographed. (n = 12, ¶ P < 0.005 vs. vector alone group). (D) Representative pictures of primary tumors in nude mice injected with SW480 cells expressing the indicated constructs.

Back to article page