Abstract 4604: Activities of in vitro prepared recombinant wnt inhibitory factor-1 (Wif-1)

Abstract

Abstract Wnt Inhibitory Factor-1 (Wif-1) is a secreted modular protein that inhibits the activities of Wnt signaling pathway. The latter is involved in many aspects of cancer and embryonic development. Many studies have shown that reduced WIF-1 expression is associated with the development of cancer. Since WIF-1 acts in extracellular space, it is possible to use in vitro expressed WIF-1 as a therapeutic agent for cancer treatment. We tested whether in vitro expressed recombinant WIF-1 could elicit inhibitory effects on Wnt pathway in 3T3 cells by examining the expression of insulin-like growth factor II (Igf2), Wnt1 inducible signaling pathway protein 2 (Wisp2), (C/EBPδ), and peroxisome proliferator-activated receptor γ (PPARγ) which has been implicated as a suppressor in numerous cancer types including human breast, lung, and colon cancer. 3T3 cells were treated with 0, 1, 5 and 20 ng/ml of recombinant mouse Wif-1 protein. Total RNA was isolated after 24-48 hours of treatment. The levels of Igf2, Wisp2, C/EBPδ, and PPARγ mRNA were analyzed with reverse transcription quantitative polymerase chain reaction. Results are being analyzed to determine whether the in vitro expressed recombinant Wif-1 protein can modulate the expression of these genes and regulate cancer to have a significant inclusion in the field of cancer biology. Citation Format: Duaa A. Babaer, Xiaofei Wang. Activities of in vitro prepared recombinant wnt inhibitory factor-1 (Wif-1). [abstract]. In: Proceedings of the 107th Annual Meeting of the American Association for Cancer Research; 2016 Apr 16-20; New Orleans, LA. Philadelphia (PA): AACR; Cancer Res 2016;76(14 Suppl):Abstract nr 4604.