Volume 74, Issue 9 (December 2016)                   Tehran Univ Med J 2016, 74(9): 614-620 | Back to browse issues page

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Pasiar M, Rouhi L, Bamzadeh Z, Hossein Hejazi S. In vitro selective growth inhibition of breast adenocarcinoma cell lines by Pseudomonas sp. UW4 metabolites. Tehran Univ Med J 2016; 74 (9) :614-620
URL: http://tumj.tums.ac.ir/article-1-7803-en.html
1- Department of Microbiology, Faculty of Basic Sciences, Shahrekord Branch, Islamic Azad University, Shahrekord, Iran.
2- Cellular and Developmental Research Center, Faculty of Basic Sciences, Shahrekord Branch, Islamic Azad University, Shahrekord, Iran. , lrouhi59@gmail.com
3- Skin Diseases and Leishmaniasis Research Center, Department of Parasitology and Mycology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran.
Abstract:   (4109 Views)

Background: Breast cancer is a malignant proliferation of epithelial cells that lining the ducts or lobules of the breast. It is the second common cancer, after lung cancer in women. Since growth inhibition is an important strategy in cancer treatment, many attempts are in program to find new apoptotic inducer agents. Today there is some reports about effect of metabolites of Pseudomonas on cancer cells, hence, metabolites of Pseudomonas sp. UW4, were isolated and anti-cancer and anti-microbial activity of these metabolites was studied.

Methods: This experimental study was performed in cellular and developmental biology of Shahrekord Islamic Azad University from April 2015 to August 2015. Anti-microbial activity of metabolites of Pseudomonas sp. UW4 was tested against a pathogenic bacteria, including Escherichia coli, Bacillus cereus and Staphylococcus aureus. For anti-cancer activity, in this study SKBR3 cells and normal fibroblast cells (HU-02) were cultured in DMEM medium with 10% fetal bovine serum (FBS). The cells were treated by various concentrations of these metabolites 5, 10, 15 and 20 mg/ml for 24, 48 and 72 h. Cell viability was assessed by MTS assay. Cells were seeded at 5×103 cells/ml in 96 well plates and incubated for 24 hr. Then metabolites of bacteria were added, after indicated times MTS (20 µl) was added and the absorbance was measured at 492 nm using ELISA plate reader.

Results: Pseudomonas sp. UW4 was able to produce antimicrobial metabolites against Staphylococcus aureus. Metabolites decreases the viability of SKBR3 cell line in a time and dose dependent manner, so that the most effective concentration of this substance was 20 mg/ml and 72 h after treatment (P< 0.01). While Pseudomonas sp. UW4 in various concentrations had no significant effect on normal fibroblast cells (P= 0.24).

Conclusion: Bioactive compounds produced by of Pseudomonas sp. UW4 could be used for elimination of infections and treatment of breast cancer SK-BR3.

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