trying to use embryonic stem cells about 20 years ago, working with animals,  especially rats began. during these years , many experiments in mouse embryonic stem cells to transform into a variety of cells and transplanting them were led to remarkable success . in the next issue of human stem cells were considered successful until finally in 1998 the first report was published in the proliferat...

stem cell therapy is a powerful technique for the treatment of a number of diseases. stem cells are derived from different tissue sources, the most important of which are the bone marrow (bm), umbilical cord (uc) blood and liver. human uc mesenchymal stem cells (huc-mscs) are multipotent, non-hematopoietic stem cells that have the ability to self-renew and differentiate into other cells and tis...

up-regulation of cd4+cd25+cd127low/- regulatory t cells (tregs) is a new target in the treatment of asthma. human bone marrow mesenchymal stem cells can up-regulate cd4+cd25+cd127low/- regulatory t cells in vitro,  meanwhile, heme oxygenase-1 (ho-1) plays an important role in the development and maintenance of cd4+cd25+ regulatory t cells. however the mechanism has not yet been adequately under...

background: langerhans' cell histiocytosis (lch) is a reactive proliferative disease of unknown pathogenesis characterized by proliferation of langerhans cells. involvement of bone marrow (bm), liver and lung are related to high risk factors and poor survival. the aim of this report is to highlight the clinical and haematological findings of 5 cases of lch with bm infiltration which may help to...

Objective- To investigate and compare growth potential as well as aging of mesenchymal stem cells (MSCs) derived from rat bone marrow tissue and adipose tissue (AT) occurred at epicardial and epididymal regions. Design- Experimental study.   Animals- 10 Wistar Rats.   Procedures- Rat MSCs occurred at bone marrow and epicardial and epididymal AT were isolated and culture expanded through sev...

Increasingly, enriched populations of hematopoietic progenitors are used in experimental and clinical transplantation studies. The separation of progenitors is based on the expression of CD34, a marker preferentially expressed on progenitor cells. The dog model has been important for preclinical transplant studies, because it has proven predictive for outcomes in human hematopoietic stem cell t...

  Stem cells are naïve or master cells. This means they can transform into special 200 cell types as needed by body, and each of these cells has just one function. Stem cells are found in many parts of the human body, although some sources have richer concentrations than others. Some excellent sources of stem cells, such as bone marrow, peripheral blood, cord blood, other tissue stem cells and ...

Human mesenchymal stem cells (hMSCs), which also called mesenchymal stromal cells, are multipotent stem cell. Human MSCs typically are positive for the surface markers CD44, CD73, CD90, CD105, CD106, and also negative for hematopoietic markers CD34 and CD45.These cells can be isolated from postnatal bone marrow, adipose tissue, placenta, and scalp tissue, as well as from various fetal tissues. ...

stem cells are naïve or master cells. this means they can transform into special 200 cell types as needed by body, and each of these cells has just one function. stem cells are found in many parts of the human body, although some sources have richer concentrations than others. some excellent sources of stem cells, such as bone marrow, peripheral blood, cord blood, other tissue stem cells and hu...