the transcriptional factor sox2 regulates the expression of some of the developmental genes, which are essential for the maintenance of pluripotency of stem cells. sox2 also expresses in the female gamete during folliculogenesis, but its role remains ambiguous. the aim of this study was to investigate the expression of sox2 in the mice ovarian tissue during different stage of estrous cycle. adu...

background: bone marrow stromal stem cells (bmsc) are appropriate source of multipotent stem cells that are ideally suited for use in various cell-based therapies. it can be differentiated into neuronal-like cells under appropriate conditions. this study examined the effectiveness of co-stimulation of creatine and retinoic acid in increasing the differentiation of bmsc into gabaergic neuron-lik...

Background: Micro-Ribonocellic Acids (miRNA) are non-coding nucleic acids that are evolutionally protected and have a length of 24-20 nucleotides. MiRNAs control the expression of genes after transcription by mRNA degradation or translation inhibition. By blocking the oncogenic miRNAs and creating the necessary and functional miRNAs (tumor suppressor), these small regulatory RNAs can have thera...

background: micrornas (mirna) are small non-coding rnas that have a distinguished role in post- transcriptional gene expression. it’s estimated that 10-30% of human mrnas are regulated by mirnas. many mirnas profiles change during normal erythropoiesis in which some of them are stage specific.mir-155 was downregulated 200 fold in erythropoiesis. materials and methods: k562cells were grown in rp...

background: some recent studies reported human epidermal growth factor receptor (her-2/neu) as a marker that can be used in immunological studies of colorectal carcinoma for predicting the prognosis and the treatment. therefore, we aimed to investigate the frequency of her-2 expression in patients with colorectal cancer, and explore the relationship between clinicopathological prognostic factor...

  Abstract   Background: Squamous cell carcinoma (SCC) constitutes the main oral malignancy .   Parallel to better understanding of molecular and genetic patterns of tumor behavior, more precise correlation of tumor markers such as Epidermal Growth Factor (EGF) and Laminin-5 are sought to estimate macroscopic and microscopic tumor status .   Methods: We conducted a cross-sectional study collect...

objective: bone marrow mesenchymal stem cells reside in bone marrow and support homing and differentiation of hematopoietic stem cells (1). this makes them an excellent instrument for regenerative treatment and co-culture with the hsc. materials and methods: in this study, k562 cell lines were treated with butyric acid(for erythroid differentiation), co-cultured with mesenchymal stem cells and ...