STIM1 gene silencing suppresses tumor formation of human hypopharyngeal carcinoma cell line FaDu in nude mice

Zhonghua er bi yan hou tou jing wai ke za zhi = Chinese journal of otorhinolaryngology head and neck surgery
Xiaobo CuiBoqian Wang

Abstract

To evaluate the inhibition effect of STIM1 gene silencing on tumor growth of human hypopharyngeal carcinoma cell lines FaDu in nude mice. STIM1 gene in FaDu was silenced by lentiviral infection, and the effect of inhibition was detected by Real-time PCR and Western blot after lentiviral infection. Nude mice were divided into 2 groups, 5 mice in each group. Inhibition group: subcutaneous inject FaDu cells which STIM1 expression was inhibited. subcutaneous inject FaDu cells infected with negative control siRNA-expressing lentivirus. Tumor volumes were measured by calipers, and small animal imaging was detected by NightOWL system on the day 10, 14, 18 and 22 after tumor inoculated. Tumor weights were evaluated in the day 22 after tumor inoculated. Statistical analysis was performed using standard student test(P value threshold was 0.05). The expressions of human STIM1 gene and protein in FaDu cells were suppressed effectively after STIM1-siRNA lentiviral infection. The mean tumor volumes of control group and inhibition group were (51±25) mm3 and (40±35) mm3, respectively, on the day 10, (262±107) and (106±41) mm3 on the day 14, (716±226) and (340±158) mm3 on the day, (1 682±592) mm3 and (917±252)mm3 on the day 22 (P<0.05). On the ...Continue Reading

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