within a single tumor clone, cells have significantly different abilities to proliferate and form new tumors. this has led to the hypothesis that most cells in a cancer have a limited ability to divide and only a small subset of distinct cells, the cancer stem cells (cscs), has the capacity to self-renew and form new tumors . it has been proposed that the development of tumors is based exclusiv...

the clinical potentials of stem cells in cell-based therapies have raised great hopes in diabetes mellitus as well. however, there are complex ethical, legal, and socio-cultural issues surrounding the subject. in this paper, we intend to review in brief the main ethical issues for endocrinologists and other clinicians who are interested and work in the field of cell therapy and research.

Induced pluripotent stem cells (iPSCs) generated by ectopic expression of four transcription factors have great promises for regenerative medicine in humans. Since the initial report of iPSCs by viral transfection, ample efforts have been made in the generation of iPSCs through nonviral approaches. Small molecules offer the advantages of low cost without genomic modification and have been used ...

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...

introduction: cardiac glycosides such as digoxin or digitoxin are the natural products that are traditionally used to increase cardiac contractile force in patients with heart failure and cardiac arrhythmias. it has been shown that digoxin can directly inhibit the cell proliferation and lead to cell apoptosis. present study was conducted to analyze the effect of digoxin in the cohorts of mesenc...

epilepsy as one of the most common neurological disorders affects more than 50 million people worldwide with a higher prevalence rate in low-income countries. excessive electrical discharges in neurons following neural cell damage or loss cause recurrent seizures. one of the most common and difficult to treat types of epilepsy is temporal lobe epilepsy (tle) which results from hippocampal scler...

post-remission treatment in patients with acute myeloid leukemia is still controversial. one potent choice for patients with no donor available is autologous stem cell transplantation. the median follow-up period was 18 months and the median age was 26 years old. in the review of 116 recently diagnosed aml patients (except aml- m3) who underwent autologous stem cell transplantation, 72.4% of pa...

mesenchymal stem cells (mscs),as the major stem cells for cell therapy, have been studied from different aspects in pre-clinical and clinical settings for more than a decade. these cells modulate the immune system (humoral and cellular immune responses) in vitro by producing soluble factors (anti-inflammatory molecules) and/or making cell-cell contacts. hence they could be used in regenerative ...

Cancer stem cells (CSCs) are unique subpopulations that have the capacity to drive malignant progression with renewal abilities. Recently the role of some of CSCs in gastric adenocarcinoma has been studied. This study was performed in order to evaluate CD44 and CD133 expressions by immunohistochemistry in 95 primary gastric adenocarcinoma and their relation to clinical and pathological paramete...