background : cancer stem cells are a subgroup of tumor cells that have the capability for self-renewal and differentiation and are characterized by multiple markers. several studies have been conducted to identify these cells in colorectal cancer, including stem cell marker cd24. this study has evaluatedtheassociation of cd24 expression with clinicopathologic features and survival in an immunoh...

dendritic cells (dcs) are antigen presenting cells with unique capability to take up and process antigens in the peripheral blood and tissues. they subsequently migrate to draining lymph nodes where they present these antigens and stimulate naive t lympho-cytes. during their life cycle, dcs go through two maturation stages and are referred to as immature and mature cells, respectively. while im...

background: metastasis and recurrence of colorectal cancer after treatment is attributed to stem cells. the aim of this study was to determine the relationship between the expression of stem cell marker cd166 in colorectal cancer by immunohistochemistry and clinicopathologic parameters.methods: from 2006 to 2012, 121 colectomy specimens of patients with colon cancer that were operated in babol ...

stem cell based treatments are being increasingly explored for their possible potential to treat various cancers. mesenchymal stem cells believed to possess anti-tumor potential and are preferred for their properties like immune privileged nature, ability to migrate to the site of tumor and capability for multilineage differentiation. this tumor tropism property of mscs could be utilized to del...

helicobacter pylori was the main cause of gastric cancer (gc) in all over the world that results in intestinal- and diffuse-type carcinoma. infection by this bacterium remains chronic for a long time. in vitro studies have highlighted the role of stem cells in gc. h. pylori infection results in tissue injury and the adult/tissue stem cells subsequently start to replace the dead cells. the genet...

objective(s):  although several chemical and physical methods for gene delivery have been introduced, their cytotoxicity, non-specific immune responses and the lack of biodegradability remain the main issues. in this study, hydroxyapatite nanoparticles (nps) and 1,2-dioleoyl-sn-glycero-3-phosphoethanol​amine (dope)-modified hydroxyapatite nps was coated with antisense oligonucleotide of e6 mrna...

background: breast cancer is the most common cancer in women worldwide. recently, natural remedies such as naringenin (nar) - a kind of flavonoids which can be found in grapefruits, oranges, and tomatoes - seem to be interesting. they play a useful role in treatment and chemoprevention because of having pleiotropic molecular mechanisms of action on breast cancer cells. methods: we performed a p...

background: proliferation and expansion of cancer stem cells as spheroids were proved in previous studies. but, capability of primary tumor-derived stem cells to keep their unique properties in vitro is still disputed. so, the goal of this study was to isolate, expand and characterize of colon cancer-derived stem cells. material and methods: in the present work, colon cancer stem cells markers ...

background: angiogenesis, which is required for embryonic development and many physiological events, plays crucial role in many pathological conditions such as tumor growth and metastasis. recent studies indicate anticancer and antitumor properties of saffron against human cancers. many processes are affected by electromagnetic field (emf) and its effect on proliferation and gene expression wer...