Background: Nuclear factor of activated T-cells (NFAT) is a general name applied to a family of transcription factors shown to be important in immune response. One or more members of the NFAT family are expressed in most cells of the immune system. NFAT1 is considered to involve in the development of cardiac, skeletal muscle, nervous systems, and tumorigenesis.
Methods: In the current study, we analyzed MEKK1 expression in 159 surgically resection non-small cell lung cancer patient's samples by immunohistochemistry and determined its role in SK-EMS-1 cells via RNAi experiment.
Results: The abilities of invasion, motility, and adhesion of SK-EMS-1 cells were detected by transwell assay, wound healing assay and adhesion assay, respectively. The result showed NFAT1 was highly expressed in lung tumor tissues instead of adjacent lung tissues (54.1% vs 8.8%, p < 0.05); its overexpression was positively correlated with lymph node metastasis (p < 0.05). Depleting its expression in SK-EMS-1 cells can inhibit its invasion and migration abilities significantly (p < 0.05); and also can reduce proliferation of lung cancer cells (p < 0.05).
Conclusion: Our study showed NFAT1 plays an important role in origination, invasion and metastasis of non-small lung cancer cells; its underlying action mechanism needs further study.
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| http://dx.doi.org/10.1186/1475-2867-13-41 | DOI Listing |
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