Overexpression of Metastatic Related MicroRNAs, Mir-335 and Mir-10b, by Staphylococcal Enterotoxin B in the Metastatic Breast Cancer Cell Line

Advanced Pharmaceutical Bulletin

Abbas Ali Imani Fooladi¹  Hamideh Mahmoodzadeh Hosseini¹  Mohammad Reza Nourani²  Elnaz Mehdizadeh Aghdam³  Mohammad FoadHeidary⁴  Reza Ranjbar⁴  Reza Mirnejad⁴ 

[1] Applied Micobiol ogy Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran.;Chemical Injury Research Center (CIRC), Baqiyatallah U niversity of Medical Sciences, Tehran, Iran.;Department of Pharmaceutical Biotechnology, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran.;Molecular Biology Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran.;

关键词: Breast Cancer;    Metastasis;    Mir - 335;    Mir - 10b;    StaphylococcalEnterotoxin B;   

DOI  :  10.15171/apb.2015.035

来源: DOAJ

【 摘 要 】

Purpose : One of the advanced cancer therapy strategies is immune - stimulating compound based immunotherapy Staphylococcal enterotoxin B (SEB) is one of the potent superantigens, which can efficiently activate antitumor immune response to eradicate tumor growth and inhibit metastasis. Herein, we evaluated the effect of SEB on the expression of two master microRN As, mir - 335 and mir - 10b, involved in metastasis. Methods : A metastatic breast cancer cell line MDA - MB231was treated with four different concentrations of SEB, including 10, 10 2 , 10 3 and 10 4 ng/ml, for 24 and 48 hours. To identify the cytotoxic effect of S EB, treated cells were examined by MTT assay. The stem loop RT - PCR (TaqMan) was used to analyze the mir - 335 and mir - 10b expression. Results : Results showed that SEB significantly increased the expression of mir - 335 both after 24 and 48 hours ( p v < 0.001 and p v < 0.05, respectively). No significant differences were found in the mir - 10b expression. Conclusion : Moreover, our findings demonstrated no cytotoxic effect of SEB on the treated cells. Our results suggest that SEB probably induces its anti - m etastatic effect via the expression regulation of the main genes which contributes to metastasis.

【 授权许可】

Unknown