Establishment of a colorectal cancer SW620 cell line stably over-expressing Wilm's tumor on X chromosome using a recombinant lentivirus vector
MA Wenxia
HE Li
LIU Chun
ZHANG Qingling
DING Yanqing
Abstract：Objective To construct a recombinant lentivirus vector for Wilm's tumor on X chromosome (WTX) gene and establish a colorectal cancer SW620 cell line with stable WTX over-expression. Methods The full length coding region of WTX gene was amplified with PCR, and the amplified fragment was cloned into the lentivirus vector GV387. The recombinant lentivirus vector was transfected in 293T cells for packaging the virus, which was then transfected into colorectal cancer SW620 cells. The stably transfected cells were selected with G418, and the cellular expressions of WTX mRNA and protein were detected using quantitative PCR and Western blotting. Results The recombinant plasmid was successfully constructed as verified by sequence analysis. Quantitative PCR and Western blotting results showed that trasnfection with the recombinant lentivirus significantly increased the expression levels of WTX in SW620 cells. Conclusion We successfully established a colorectal cancer cell lines with stable over-expression of WTX, which provides an essential cell model for studying the role of WTX in the tumorigenesis and progression of colorectal cancer.
Keywords：Wilms tumor on X chromosomelentivirus vectortransfectioncolorectal cancer
Publication Date：2015-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 1122-1127 )