Silencing of LMP2A by Lentivirus-mediated RNAi Inhibits Growth of Epstein-Barr Virus-associated Gastric Carcinoma Cells in vitro / 胃肠病学
Chinese Journal of Gastroenterology
;
(12): 711-716, 2017.
Article
in Chinese
| WPRIM
| ID: wpr-664922
ABSTRACT
Background:
Epstein-Barr virus (EBV)is associated with various human lymphoid and epithelial malignancies such as Burkitt's lymphoma,nasopharyngeal carcinoma and gastric carcinoma. LMP2A,a virus-encoded latent membrane protein is expressed in a portion of EBV-associated gastric carcinoma (EBVaGC)and has been shown to be related with the tumorigenesis and progression of EBVaGC.Aims:
To explore the effect of LMP2A silencing on growth of EBVaGC cells in vitro by using a lentivirus-mediated RNA interference (RNAi)to inhibit LMP2A gene expression.Methods:
A lentivirus vector pGCSIL-LMP2A-shRNA-LV and a negative control vector were constructed and transfected into the EBVaGC cell line GT38. Real-time PCR and Western blotting were used to determine the inhibitory effect of the lentivirus vector;CCK-8 assay,colony formation assay and flow cytometry were employed to assess the cell growth,cell cycle and apoptosis of GT38 cells.Results:
In GT38 cells transfected with LMP2A-shRNA-LV,the expression level of LMP2A mRNA was decreased by 65. 4%,and that of LMP2A protein was reduced by 50. 8%;the cell proliferation was inhibited,the colony formation ability was suppressed,the percentage of cells in G0 / G1 phase and apoptotic rate were increased when compared with those transfected with negative control vector or without transfection (P < 0. 05).Conclusions:
Lentivirus-mediated RNAi is effective for silencing LMP2A gene expression,subsequently inhibiting the growth of EBVaGC cells,inducing G0 / G1 phase arrest and enhancing cell apoptosis in vitro. LMP2A is supposed to be a potential target for gene therapy of EBVaGC.
Full text:
Available
Index:
WPRIM (Western Pacific)
Language:
Chinese
Journal:
Chinese Journal of Gastroenterology
Year:
2017
Type:
Article
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