In this study cellular phosphatase activity, referred to as enzyme developed color (EDC) assay, was used for an in vitro assessment of cell proliferation and cytotoxicity. Optimum conditions were established and found to be 10 x103 cells / well at 37°C and 60 min incubation (for developing color). Under the same conditions a direct correlation between optical density (00) and cell number wa...

Background: Plants are a proven source of anti-tumor compounds and it is reasonable to assume that many such substances remain to be discovered. In Iranian folk medicine, ethanolic extract of the aerial parts of Daphne mucronata Royle is used against various skin disorders.Objective: In order to evaluate anti-neoplastic plants, we initiated a cytotoxic study using Daphne mucronata that is indig...

Background: Iron is an essential trace element in cell proliferation. Several investigations demonstrate that iron deprivation inhibits cell proliferation. However, the impact of iron on telomerase activity of activated lymphocytes remains unexplained to date. Objective: In this study, the effect of iron on the proliferation and telomerase activity of lymphocytes stimulated by phytohemagglutini...

To assess the inhibitory effects of Astragalus polysaccharide on proliferation human lung adenocarcinoma H1299 cells via toll-like receptor 4/myeloid differentiation factor 88/nuclear factor-kappa B signaling pathway. were treated with different concentrations polysaccharide. After 24 h and 48 h, cell counting kit-8 assay was employed to measure proliferation. The (25 μg/ml) invasion ability, m...

Introduction Papillary thyroid carcinoma (PTC) is the most common type of malignancy with increased incidence rapidly occurring in countries. The study aimed to investigate antitumor effects combination 5-FU and Apatinib on PTC. Material methods TPC-1 SW579 cells were treated 5-FU, Apatinib, or a Apatinib. Cell viability was assessed by CCK-8 assay. Edu staining colony formation used evaluate c...

background  recent investigations show that both proliferation and secretion of macromolecules by cells can be regulated by low level laser therapy (lllt). the aim of this study was to determine whether lllt could induce a bio-stimulatory effects on human gingival fibroblasts (hgf3-pi 53). therefore, the effect of laser irradiation on human gingival cell proliferation and collagen type i gene e...

background: in this study, the effects of three structural analogues of adenosine upon proliferation of human tumor cells were investigated. previous research showed a cytotoxic effect of adenosine via a3 receptor and a1 receptor and sometimes this effect was receptor independent. the researches showed a differential cytotoxic effect of adenosine and its a3 agonists on cancerous cells, while ot...

stem cell therapy could have great potential for the treatment of a wide variety of diseases. stem cells might have the ability to differentiate into a widespread cell types, and to repopulate and revitalize the damaged cells with healthy tissue, and improve its performance. we provide here the evidence supporting the critical use of stem cell as a treatment in disease conditions existing with ...