• J. Korean Med. Sci. · Sep 2012

    Prostaglandin E(2) and interleukin-1β reduce E-cadherin expression by enhancing snail expression in gastric cancer cells.

    • Ye Seob Jee, Tae Jung Jang, and Ki Hoon Jung.
    • Department of Surgery, Dankook University Hospital, Cheonan, Korea.
    • J. Korean Med. Sci. 2012 Sep 1; 27 (9): 987992987-92.

    AbstractInflammation is closely related to the progression of cancer as well as tumorigenesis. Here, we investigated the effect of prostaglandin E(2) (PGE(2)) and interleukin-1β (IL-1β) on E-cadherin expression in SNU719 gastric cancer cells. E-cadherin expression decreased as the dose or exposure time of PGE(2) and IL-1β increased, whereas Snail expression increased with dose or time of PGE(2) and IL-1β. E-cadherin expression reduced by PGE(2) treatment increased after the transfection of Snail siRNA. Neutralization of IL-1β using anti-IL-1β antibody blocked the expression pattern of E-cadherin and Snail occurred by IL-1β treatment. However, there was no synergic effect of IL-1β and PGE(2) on the expression pattern of E-cadherin and Snail. In conclusion, inflammatory mediators reduced E-cadherin expression by enhancing Snail expression in gastric cancer cells. Inflammation-induced transcriptional regulation of E-cadherin in gastric cancer has implications for targeted chemoprevention and therapy.

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