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Activity of pGL3-hTERTp and pGL3-GFAP in different cells. (A) The plasmids (pGL3-hTERTp and pGL3-GFAP) were transfected into the cultured MRC-5 (11), U251 and T98 G cells (magnification, ×100). (B) The relative luciferase activity of pGL3-hTERTp and pGL3-GFAP was detected using a dual-luciferase reporter assay. Data are presented as the mean ± standard deviation (n=3). **P<0.01. NS, not significant. hTERT, human telomerase reverse transcriptase; GFAP, glial fibrillary acidic protein.
