Protein malnutrition is one of the most serious nutritional problems worldwide, affecting 794 million people and costing up to $3.5 trillion annually in the global economy. Protein malnutrition primarily affects children, the elderly, and hospitalized patients. Different degrees of protein deficiency lead to a broad spectrum of signs and symptoms of protein malnutrition, especially in organs in...

We review here the development of the hematopoietic system and its relationship to the endothelium, with a special focus on the characterisation of the hemangioblast, the putative ancestor for endothelial cells and hematopoietic cells. Using the avian model, we have traced in vivo the progeny of embryonic endothelial cells and shown that aortic-born hematopoietic cells (known to generate the de...

Hematopoietic stem cells in the bone marrow have the capacity to both self-renew and to generate all cells of the hematopoietic system. The balance of these two activities is controlled by hematopoietic stem cell-intrinsic regulatory mechanisms as well as extrinsic signals from the microenvironment. Here we demonstrate that Meis1, a TALE family homeodomain transcription factor involved in numer...

This review is focused on methods that are used to derive hematopoietic cells from embryonic stem cells (ESCs). One of the strategies that have been recently used to achieve this goal is an approach of mimicking the hematopoietic niche in vitro by using hematopoiesis-supportive feeder cells, cocktails of soluble hematopoietic growth factors and a variety of matrices. While there is clear eviden...

Cells in murine muscle have been reported to differentiate into hematopoietic stem and progenitor cells and thus repopulate the hematopoietic system of an irradiated animal. This activity was attributed to muscle stem cells. We used an in vitro and in vivo approach to identify the hematopoietic repopulating activity found in muscle tissue of mice by antibody staining and cell sorting. We confir...

• About Solid Tumours • Cancer Basics • Causes, risk factors and staging • Treatment • How are Stem Cells Helping in the battle against solid tumours? • History of hematopoietic stem cell transplantation (HSCT) • Autologous versus allogeneic HSCT • Allogeneic stem cell transplants – graft versus tumour effect • Autologous HSCT for solid tumours • Research and clinical directions • Hematopoietic...

Hematopoietic stem cell gene therapy holds the promise of being able to treat a variety of inherited and acquired diseases of the hematopoietic stem cell. However, to date, genetic modification of the human hematopoietic stem cell has been relatively inefficient. Here, we report the results of using a bioreactor system to expand hematopoietic cells after a brief retrovirus infection using a hig...

background: despite recent advances in mobilization techniques, a considerable portion of patients fail to mobilize sufficient number of cells for successful autologous stem cell transplantation. there are several studies available that have demonstrated enhanced mobilization of endothelial progenitor cells with atorvastatin. therefore, this prospective trial was conducted to evaluate the mobil...

objective: nowadays, cord blood hematopoietic stem cells (hscs) are known as a valuable source for bone marrow transplantation but unfortunately their insufficient number is a limiting factor for using them in adult bone marrow transplantation. cord blood hcss expansion is an approach to overcome this problem, by inducing their self-renewal. tgf-b signaling pathway is a key inhibitory agent for...

allogeneic hematopoietic stem cell transplantation is used in the treatment of patients suffering from hematologic and non-hematologic disorders, but the application is limited by the identification of a suitable donor. umbilical cord blood (ucb) is an alternative source of hematopoietic stem cell (hsc) transplantation. despite all advantages, the limited cell dose is one of the  major obstacle...