Cell and Tissue Journal

Abstract Aim: In the present study, the effects of hydroalcoholic extract of Berberis integrrima root on the induction of differentiation in mesenchymal stem cells derived from adipose tissue of male Wistar rats towards osteoblasts were investigated.
Material and Methods: In this study, stem cells derived from male Wistar rat tissue were isolated and flow cytometry was performed to confirm the surface markers. Stem cells were treated with 10, 20, 40 and 80 μg/ml hydroalcoholic extract of B. integrrima root. The cell toxicity of the extract was evaluated by MTT assay and its differentiated effects was evaluated by alizarin red staining and alkaline phosphatase activity, calcium deposition assay. Results were analyzed using one-way ANOVA at a significance level of P <0.05.
Results: Stem cells markers including CD105, CD44, and CD73 had positive, and CD45 and CD34 had negative expression in these cells. The results of the MTT assay showed Concentrations less than 20 µg/ml do not have significant toxic effects on cells. Higher alkaline phosphatase activity was observed in the treatment group compared to the control group on day 10. The results of Alizarin red staining and measurement of calcium content for 21days showed that this extract in a concentration dependent manner leads to the differentiation of stem cells into osteoblasts.
Conclusion: The findings of this study showed that mesenchymal stem cells derived from adipose tissue of male Wistar rats treated with hydroalcoholic extract of Berberis integrrima root enter osteoblasts in the differentiation pathway.

Abstract Aim: The purpose of this study is to investigate the pro-apoptotic and anti-metastatic potentials of Lippia citriodora alcoholic leaf extract on A2780 ovarian cancer cells and to evaluate the expression of E-cadherin as one of the most important marker in metastasis.
Material and Methods: A2780 ovarian cancer cell line was prepared from Pasteur cell bank and cultured in RPMI1640 medium containing 10% FBS and 1% antibiotic. After cell seeding and treatment with different concentrations of extract (10-400 µg/ml), the cells viability and pro-apoptotic potential were examined by MTT assay and acridine orange/ propodium iodide, respectively. Caspase-3 assay and anti-invasive effect were analyzed by migration assay and assessment of E-cadherin expression, respectively. Then, one way ANOVA test was employed for analysis of quantitative data.
Results: Data indicated that L. citriodora alcoholic extract attenuated ovarian cancer cell viability. Acridine orange/ propodium iodide and caspase-3 assays showed that this extract in IC50 concentration (100 µg/ml) induced apoptosis mainly through caspase dependent pathway in the ovarian cancer cells. Migration assay and RT-PCR exhibited that this extract has anti-invasive capability and by up- regulation of E-cadherin prevents the loss of attachment between cancer cells.
Conclusion: The results revealed that L. citriodora alcoholic extract has apoptosis inducing capacity and ability of restoration E-cadherin expression in A2780 cancer cells, which it able to suppress invasive potential of ovarian cancer cells.
 

Abstract Aim: In this study, the effects of curcumin- coated silver nanoparticles were examined on induction of apoptosis in ovarian cancer A2780 cell.
Material and Methods: Silver nanoparticles coated with curcumin were biosynthesized, then A2780 cells were treated with different concentration of silver nanoparticles. Cytotoxicity effects of silver nanoparticles in A2780 cells were assessed by MTT assay and apoptotic effects of these nanoparticles were examined using DAPI and acridine orange/ propidium iodide staining and caspase 3/9 activation assay. Changes in Bax and Bcl-2 gene expression were analyzed by Real Time PCR.
Results: Findings showed that silver nanoparticles inhibit A2780 cells proliferation in a dose dependent manner. 8 µg/ml 50% decreased cell viability at 24 hours, DAPI and, acridine orange propidium iodide staining represent that percentage of apoptotic cells in the treated groups was increased. The results of Real Time PCR showed that Bax gene expression in cells treated with silver nanoparticles increased, while Bcl-2 gene expression in the treated cells was decreased.
Conclusion: Silver nanoparticles coated with curcumin induce apoptosis in A2780 cancer cells. The use of the nanoparticles should be considered a promising strategy for the treatment of ovarian cancer.