Volume 4.37 | Sep 18

Mesenchymal Cell News 4.37 September 18, 2012
     In this issue: Publications | ReviewsIndustry News | Policy News | Events | Jobs 
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TOP STORY

Hedgehog-Responsive Mesenchymal Clusters Direct Patterning and Emergence of Intestinal Villi
Researchers analyzed the cell biology of villus formation and examined the role of paracrine epithelial Hedgehog (Hh) signals in this process. They found that, before villus emergence, tight clusters of Hh-responsive mesenchymal cells form just beneath the epithelium. [Proc Natl Acad Sci USA] Abstract


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PUBLICATIONS (Ranked by impact factor of the journal)

High-Efficiency Matrix Modulus-Induced Cardiac Differentiation of Human Mesenchymal Stem Cells Inside a Thermosensitive Hydrogel
The authors have developed a thermosensitive and injectable hydrogel suitable for the delivery of cells into the heart, and found that the appropriate gel modulus can differentiate mesenchymal stem cells into cardiac cells with high efficiency. [Acta Biomater] Abstract

Dynamic MicroRNA Profiles of Hepatic Differentiated Human Umbilical Cord Lining-Derived Mesenchymal Stem Cells
Researchers aimed to identify microRNAs involved in the hepatic differentiation of human umbilical cord lining-derived mesenchymal stem cells (hUC-MSC). After isolating hUC-MSCs, they induced hepatocyte formation in vitro with growth factors. After 26 days of induction, hUC-MSCs could express hepatocyte-specific genes, synthesize urea and glycogen and uptake low-density lipoprotein. [PLoS One] Full Article

Aging Effect on Neurotrophic Activity of Human Mesenchymal Stem Cells

Researchers isolated human mesenchymal stem cells (MSCs) from bone marrow of young and old donors and analyzed their capacity to differentiate and promote neurite outgrowth from dorsal root ganglia neurons. Treatment of MSCs with growth factors induced protein expression of the glial cell marker S100 in cultures from young but not old donors. [PLoS One] Full Article

The Influence of Polymer Scaffolds on Cellular Behavior of Bone Marrow Derived Human Mesenchymal Stem Cells
The interaction of mesenchymal stem cells (MSCs) with biomaterials is of great importance for cell proliferation, differentiation and function, and can be strongly influenced by numerous factors, such as the chemical nature and the mechanical properties of the material surface. Researchers investigated the interaction of bone marrow derived human MSCs with different amorphous and transparent polymers namely polystyrene, polycarbonate, poly(ether imide), polyetherurethane and poly(styrene-co-acrylonitrile). [Clin Hemorheol Microcirc] Abstract   

Intraglandular Transplantation of Bone Marrow-Derived Clonal Mesenchymal Stem Cells for Amelioration of Post-Irradiation Salivary Gland Damage
External irradiation in head and neck cancers may induce irreversible hyposalivation and consequent xerostomia, stemming from radiation damage to salivary glands (SGs). As cell-based therapy has been reported to be able to repair or restore damaged SG tissues, scientists attempted to determine whether bone marrow-derived clonal mesenchymal stem cells can ameliorate irradiation-induced salivary gland damage via a murine model. [Oral Oncol] Abstract

Effects of Secretome Obtained from Normoxia-Preconditioned Human Mesenchymal Stem Cells in Traumatic Brain Injury Rats
Results demonstrated that intravenous injection of secretome from normoxia-preconditioned human mesenchymal stem cells may ameliorate traumatic brain injury induced by fluid percussion injury in rats by reducing neuronal cell loss and apoptosis and promoting vascular epithelial growth factor production, resulting in functional outcome improvement. [Trauma Acute Care Surg] Abstract

Co-Culture with Sertoli Cells Promotes Proliferation and Migration of Umbilical Cord Mesenchymal Stem Cells
Researchers hypothesized that co-culture of human umbilical cord mesenchymal stem cells (UCMSCs) with Sertoli cells may promote proliferation and migration of UCMSCs. To examine this, they isolated UCMSCs from human cords and Sertoli cells from mouse testes, and co-cultured them using a Transwell system. They found that UCMSCs exhibited strong proliferation ability and potential to differentiate to other cell lineages such as osteocytes and adipocytes. [Biochem Biophys Res Commun] Abstract

Establishment of Adipose-Derived Mesenchymal Stem Cell Lines from a p53-Knockout Mouse
Researchers established several adipose-derived mesenchymal stem cell (MSC) clonal cell lines that maintain the tissue-specific markers and characteristics of the developmental phase. These clonal cell lines will serve as important tools to study the mechanism of differentiation of MSCs. [Biochem Biophys Res Commun] Abstract

Fibroblast Growth Factor 2 Enhances the Kinetics of Mesenchymal Stem Cell Chondrogenesis
To evaluate changes over time, researchers assessed chondrogenesis of human mesenchymal stem cells at early and late time points during pellet culture using real-time PCR, measurement of glycosaminoglycan accumulation, and histology. Marked enhancement of chondrogenesis was seen early compared to controls. However, the differences from controls in gene expression dramatically diminished over time. [Biochem Biophys Res Commun] Abstract

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REVIEWS

Adipose Tissue-Derived Mesenchymal Stem Cells: A Fat Chance of Curing Kidney Disease?
Mesenchymal stem cells (MSCs) are known for their anti-inflammatory properties and immune modulation. This review discusses whether demonstration that the phenotype and immunosuppressive ability of adipose tissue-derived MSCs are not affected by human kidney disease or uremic serum might have clinical significance if autologous adipose tissue-derived MSCs can be tested to prove their long-term safety and efficacy in treating kidney disease. [Kidney Int] Abstract


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INDUSTRY NEWS

$8.7 Million Awarded to Stem Cell Researchers in Clinical & Basic Biology Grants from the State Stem Cell Agency
Nelson’s Early Translational award and the two Basic Biology IV grants, totaling $8.7 million, continue efforts by the California Institute of Regenerative Medicine to support research designed to take stem cell science from the laboratory to the clinic. [Eli and Edythe Broad Stem Cell Research Center at UCLA] Press Release

Multicenter Investigator-Sponsored Cell Therapy Study for Peripheral Artery Disease Approved in Japan

Cytori Therapeutics announced that a 40-patient, multi-center investigator-sponsored and funded clinical study in Japan using the Celution® System has been approved under the Ministry of Health, Labor and Welfare Guidelines on Clinical Research Using Human Stem Cells. The study will investigate the use of patients’ own adipose-derived stem and regenerative cells processed by the Celution® System for peripheral artery disease or arteriosclerosis obliterans. [Cytori Therapeutics, Inc.] Press Release

POLICY NEWS

National Institutes of Health (United States)

Food and Drug Administration (United States)

Center for Biologics Evaluation and Research (United States)

European Medicines Agency (European Union)

Medicines and Healthcare Products Regulatory Agency (United Kingdom)

Therapeutic Goods Administration (Australia)

EVENTS

NEW International Conference on Emerging Cell Therapies
October 1-2, 2012
Chicago, United States


Visit
our events page to see a complete list of events in the mesenchymal cell community.

JOB OPPORTUNITIES

Quality Control Operations Coordinator (STEMCELL Technologies, Inc.)

Research Technologist – Media Development (STEMCELL Technologies, Inc.)

Research Technologist – Research and Development (STEMCELL Technologies, Inc.)

Scientific Communications & Publishing Coordinator (STEMCELL Technologies, Inc.)

Postdoctoral Position – Molecular Cell Biology (Weizmann Institute of Science)

Research Associate – Quality Assurance (University of California)

Postdoctoral Position – DNA Repair and Genomic Instability in Mesenchymal Stromal/Stem Cells (University of Rennes 1)


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