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  • Title: Knockdown of CEACAM19 suppresses human gastric cancer through inhibition of PI3K/Akt and NF-κB.
    Author: Zhao H, Xu J, Wang Y, Jiang R, Li X, Zhang L, Che Y.
    Journal: Surg Oncol; 2018 Sep; 27(3):495-502. PubMed ID: 30217308.
    Abstract:
    Gastric cancer directly affects the quality of human life worldwide. Some members, which belong to carcinoembryonic antigen-related cell adhesion molecule (CEACAM) subfamily, are deregulated in tumors. Of the subfamily, CEACAM19, a new member was the research object. Our study sought to explore the potential role of CEACAM19 in gastric cancer. According to the immunohistochemistry (IHC), RT-PCR and Western blot, CEACAM19 was over-expressed in gastric cancer tissues and cells. Moreover, the Western blot analysis showed that the expression of MMP2 and MMP9 was inhibited in CEACAM19 knockdown gastric cancer cells. Meanwhile, in SGC-7901 and MGC-803 cells, the knockdown of CEACAM19 reduced proliferation, migration and invasion. Additionally, the Western blot assay revealed that the phosphorylation levels of Akt and p65 were declined by the knockdown of CEACAM19. Furthermore, the influence of CEACAM19 knockdown was confirmed by the studies in vivo. Collectively, our results revealed that the CEACAM19 knockdown prevented the gastric cancer progression likely related to inactivating the PI3K/Akt and NF-κB signaling pathways. Our findings provided insights into a promising biomarker of gastric cancer and the potential molecule clues for the prevention of gastric cancer.
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