Abstract
Rap2b, a member of the guanosine triphosphate-binding proteins, is widely up-regulated in many types of tumors. However, the functional role of Rap2b in tumorigenesis of lung cancer remains to be fully elucidated. In this study, we investigated the effect of Rap2b on the lung cancer malignant phenotype, such as cell proliferation and metastasis. We found that Rap2b could promote the abilities of lung cancer cell wound healing, migration, and invasion via increasing matrix metalloproteinase-2 enzyme activity. Furthermore, Rap2b overexpression could increase the phosphorylation level of extracellular signal-regulated protein kinases 1/2. In conclusion, our results suggested that Rap2b may be a potential therapeutic target for lung cancer.
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