Category Archives: Mesenchymal Stem Cells

, are multipotent stem cells that can differentiate into a variety of cell types. Cell types that MSCs have been shown to differentiate into in vitro or in vivo include osteoblasts, chondrocytes, myocytes, adipocytes, and, as described lately, beta-pancreatic islets cells. MSCs are rare in bone marrow, representing ~1 in 10,000 nucleated cells. Although not immortal, they have the ability to expand manyfold in culture while retaining their growth and multilineage potential. MSCs are identified by the expression of many molecules including CD105 (SH2) and CD73 (SH3/4) and are negative for the hematopoietic markers CD34, CD45, and CD14. The properties of MSCs make these cells potentially ideal candidates for tissue engineering. It has been shown that MSCs, when transplanted systemically, are able to migrate to sites of injury in animals, suggesting that MSCs possess migratory capacity. However, the mechanisms underlying the migration of these cells remain unclear. Chemokine receptors and their ligands and adhesion molecules play an important role in tissue-specific homing of leukocytes and have also been implicated in trafficking of hematopoietic precursors into and through tissue. Several studies have reported the functional expression of various chemokine receptors and adhesion molecules on human MSCs. Harnessing the migratory potential of … Continue reading →

Vancouver, British Columbia (PRWEB) May 12, 2014 STEMCELL Technologies Inc. has just released NEW MesenCult Proliferation Kit with MesenPure (Mouse), a novel cell culture medium to advance research on mouse mesenchymal stem and progenitor cells (MSCs). When added to MesenCult medium, MesenPure supplement enriches mouse bone marrow- or compact bone-derived MSC cultures by reducing the number of hematopoietic cells. Culturing with MesenPure eliminates the time-intensive serial passaging steps and frequent cell culture medium changes normally required to decrease the unwanted hematopoietic cell population typically present in MSC cultures. Cultures treated with MesenPure appear homogeneous and mostly devoid of hematopoietic cells as early as passage zero and also contain increased numbers of mesenchymal stem cells that display more robust differentiation. This easy-to-use and versatile kit, may save researchers from having to wait several weeks for homogeneous MSC cultures, explains Dr. Arthur Sampaio, Senior Scientist at STEMCELL Technologies. But, I think the greatest advantage to using MesenPure may be the ability to use lower-passage cultures. It has been shown that over time, extended passaging can bring about detrimental changes to MSCs, such as a loss of phenotype, senescence, and a decrease in the homing ability and differentiation potential of the cells. By … Continue reading →

Abstract Introduction Bone marrow mesenchymal stem cells (BMMSCs) are a heterogeneous population of postnatal precursor cells with the capacity of adhering to culture dishes generating colony-forming unit-fibroblasts (CFU-F). Here we identify a new subset of BMMSCs that fail to adhere to plastic culture dishes and remain in culture suspension (S-BMMSCs). To catch S-BMMSCs, we used BMMSCs-produced extracellular cell matrix (ECM)-coated dishes. Isolated S-BMMSCs were analyzed by in vitro stem cell analysis approaches, including flow cytometry, inductive multiple differentiation, western blot and in vivo implantation to assess the bone regeneration ability of S-BMMSCs. Furthermore, we performed systemic S-BMMSCs transplantation to treat systemic lupus erythematosus (SLE)-like MRL/lpr mice. S-BMMSCs are capable of adhering to ECM-coated dishes and showing mesenchymal stem cell characteristics with distinction from hematopoietic cells as evidenced by co-expression of CD73 or Oct-4 with CD34, forming a single colony cluster on ECM, and failure to differentiate into hematopoietic cell lineage. Moreover, we found that culture-expanded S-BMMSCs exhibited significantly increased immunomodulatory capacities in vitro and an efficacious treatment for SLE-like MRL/lpr mice by rebalancing regulatory T cells (Tregs) and T helper 17 cells (Th17) through high NO production. These data suggest that it is feasible to improve immunotherapy by identifying a … Continue reading →

Orlando, FL (PRWEB) May 13, 2014 Neil Riordan, PhD will Present Umbilical Cord Mesenchymal Stem Cells (MSC) in the Treatment of Autoimmune Diseases at the 22nd Annual World Congress on Anti-Aging, Regenerative and Aesthetic Medicine at the Gaylord Palms Hotel in Orlando, Florida as part of the Specialty Workshop: Stem Cells in Anti-Aging Medicine: An Update. The primary focus of this workshop is to teach medical professionals how to successfully incorporate stem cell treatments into their practices. Expert faculty will cover stem cell theory and clinical trial research for all aspects of regenerative medicine as well as stem cell treatment marketing. Dr. Riordan will discuss: Allogeneic mesenchymal stem cells mechanisms of immune modulating activities; the importance of MSC placement for clinical effect; human clinical trials demonstrating efficacy; alternative routes of MSC delivery; dose and frequency; and clinical safety of MSC. The conference will be held from May 15 17, 2014 at the Gaylord Palms Hotel in Orlando, Florida. For more information, please visit http://www.a4m.com/anti-aging-conference-orlando-2014-may.html. About Neil Riordan PhD Dr. Riordan is the founder and chairman of Medistem Panama, Inc., (MPI) a leading stem cell laboratory and research facility located in the Technology Park at the prestigious City of Knowledge in … Continue reading →

Vancouver, British Columbia (PRWEB) May 12, 2014 STEMCELL Technologies Inc. has just released NEW MesenCult Proliferation Kit with MesenPure (Mouse), a novel cell culture medium to advance research on mouse mesenchymal stem and progenitor cells (MSCs). When added to MesenCult medium, MesenPure supplement enriches mouse bone marrow- or compact bone-derived MSC cultures by reducing the number of hematopoietic cells. Culturing with MesenPure eliminates the time-intensive serial passaging steps and frequent cell culture medium changes normally required to decrease the unwanted hematopoietic cell population typically present in MSC cultures. Cultures treated with MesenPure appear homogeneous and mostly devoid of hematopoietic cells as early as passage zero and also contain increased numbers of mesenchymal stem cells that display more robust differentiation. This easy-to-use and versatile kit, may save researchers from having to wait several weeks for homogeneous MSC cultures, explains Dr. Arthur Sampaio, Senior Scientist at STEMCELL Technologies. But, I think the greatest advantage to using MesenPure may be the ability to use lower-passage cultures. It has been shown that over time, extended passaging can bring about detrimental changes to MSCs, such as a loss of phenotype, senescence, and a decrease in the homing ability and differentiation potential of the cells. By … Continue reading →

Knee arthritis/torn meniscus 6 months after stem cell therapy by Dr Harry Adelson Alan discusses his results six months after stem cell therapy by Dr Harry Adelson for treatment of his arthritic knees and torn menisci http://www.docereclinics.com. By: Harry Adelson, N.D. … Continue reading →

(PRWEB UK) 9 May 2014 Over the course of the human life span the body ages and becomes less able to repair itself, allowing it to become more prone to disease and illness. In the ever developing field of scientific discovery researchers have become intrigued with the concept of finding a way to slow down age-related diseases and prolonging life through the use of medicine. Since the Japanese scientist Shinya Yamanaka (http://bit.ly/1kWb20u) first discovered iPS cells in adult tissue and pioneered mature cell regeneration, this field in medicine has become one of the most rapidly developing fields in biomedicine. A research team at the National Institute on Ageing at the National Institutes of Health in the US has discovered a promising strategy to arrest ageing by looking at a chemical called SRT1720 which activates a particular protein called Sirtuin 1 (SIRT1). Previous research has demonstrated that activating SIRT1 can have health benefits in various organisms, and it has been proposed as an anti-ageing protein. This study, published in the March edition of Research Journal: Cell (http://bit.ly/1od2gS5) focused on comparing the lifespan, health and diseases of mice fed the same diet, but with or without the addition of a SRT1720. Overall … Continue reading →

Beware of fake medicines and advertisements touting the purported miracles that stem cell therapy can do. This was the warning aired by former health secretary Esperanza Cabral at the Kapihan sa Manila at the Diamond Hotel last Monday. Contrary to what the ads claim, she said, stem cell therapy has not been scientifically proven to cure any disease or make anyone young again. It has been successful in a very few experiments, which is the reason quack doctors are taking advantage of it to make exaggerated claims that the therapy can cure the deadliest diseases known to man. The Food and Drug Administration (FDA) very recently issued a similar warning against it. Stem cell therapy is the process of injecting into patients young cells taken from humans or sheep. The theory is that the young cells will rejuvenate the old cells of the patients and make them young again and cure whatever diseases they have. Although experiments are being conducted, no such results have been achieved. But that does not prevent foreign quack doctors from coming here and making all those exaggerated claims. Sadly, they are aided by some Filipino doctors. The reason is that in countries like the Philippines … Continue reading →

Knee arthritis 9 months after stem cell therapy by Dr Harry Adelson Carol describes her outcome from stem cell therapy by Dr Harry Adelson for her arthritic knee http://www.docereclinics.com. By: Harry Adelson, N.D. … Continue reading →

World J Stem Cells. 2014 Apr 26;6(2):120-133. Mesenchymal stem cells in the treatment of spinal cord injuries: A review. Dasari VR, Veeravalli KK, Dinh DH. Author information Abstract With technological advances in basic research, the intricate mechanism of secondary delayed spinal cord injury (SCI) continues to unravel at a rapid pace. However, despite our deeper understanding of the molecular changes occurring after initial insult to the spinal cord, the cure for paralysis remains elusive. Current treatment of SCI is limited to early administration of high dose steroids to mitigate the harmful effect of cord edema that occurs after SCI and to reduce the cascade of secondary delayed SCI. Recent evident-based clinical studies have cast doubt on the clinical benefit of steroids in SCI and intense focus on stem cell-based therapy has yielded some encouraging results. An array of mesenchymal stem cells (MSCs) from various sources with novel and promising strategies are being developed to improve function after SCI. In this review, we briefly discuss the pathophysiology of spinal cord injuries and characteristics and the potential sources of MSCs that can be used in the treatment of SCI. We will discuss the progress of MSCs application in research, focusing on the … Continue reading →