Volume 5.30 | Aug 6

Mesenchymal Cell News 5.30 August 6, 2013
Mesenchymal Cell News
     In this issue: Publications | Reviews | Industry News | Policy News | Events | Jobs
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TOP STORY
Bioactive Chemical Nanopatterns Impact Human Mesenchymal Stem Cell Fate
Researchers report that bioactive nanostructures induce mature focal adhesions on human mesenchymal stem cells with an impact on their behavior and dynamics specifically in terms of cell spreading, cell-material contact, and cell differentiation. [Nano Lett] Abstract
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PUBLICATIONS (Ranked by impact factor of the journal)
Lower Extent but Similar Rhythm of Osteogenic Behavior in hBMSCs Cultured on Nanofibrous Scaffolds versus Induced with Osteogenic Supplement
Scientists explored the osteogenic behavior of human bone marrow mesenchymal stem cells (hBMSCs) on poly-L-lactide nanofibers with different orientations, and monitored the dynamic changes in global gene expression triggered by topographical cues. [ACS Nano] Abstract

Orchestrating Osteogenic Differentiation of Mesenchymal Stem Cells – Identification of Placental Growth Factor as a Mechanosensitive Gene with a Pro-Osteogenic Role
The functional role of placental growth factor in modulating MSC osteogenic differentiation was interrogated and researchers showed a concentration dependent response whereby low concentrations exhibited the strongest pro-osteogenic effect. [Stem Cells] Abstract

Hypoxia-Inducible Factor-2a-Dependent Hypoxic Induction of Wnt10b Expression in Adipogenic Cells
Hypoxia increased the expression of Wnt10b in both human and mouse adipogenic cells, but not in hypoxia-inducible factor-2a-deficient adipogenic cells. [J Biol Chem] Abstract | Full Article

Analyses of Chondrogenic Induction of Adipose Mesenchymal Stem Cells by Combined Co-Stimulation Mediated by Adenoviral Gene Transfer
Scientists analyzed the in vitro chondrogenesis of adipose derived mesenchymal stem cells transduced with adenoviral vectors encoding the factors Insulin-like growth factor-1, Transforming growth factor-b beta1, Fibroblast growth factor 2, and Sex determining region Y-box 9 either alone or in combinations. [Arthritis Res Ther] Abstract | Full Article

Development of an In Vitro Cell System from Zebrafish Suitable to Study Bone Cell Differentiation and Extracellular Matrix Mineralization
ZFB1 cells can differentiate toward osteoblast or chondroblast lineages, as demonstrated by expression of osteoblast- and chondrocyte-specific markers, they exhibit an alkaline phosphatase activity, a marker of bone formation in vivo, and they can mineralize their extracellular matrix. [Zebrafish] Abstract

Biomimetic Three-Dimensional Anisotropic Geometries by Uniaxial Stretching of Poly(e-Caprolactone) Films: Degradation and Mesenchymal Stem Cell Responses
Human mesenchymal stem cells aligned better towards uniaxial-stretch-induced poly(e-caprolactone) ridge/groove arrays when the geometries were remained intact, and became sensitive with gradually declined nucleus alignment and elongation to the geometric degradation of ridges. [J Biomed Mater Res A] Abstract

Short-Term Administration of Small Molecule Phenamil Induced a Protracted Osteogenic Effect on Osteoblast-Like MC3T3-E1 Cells
Scientists revealed that both short and continuous phenamil treatment triggers osteoblastic differentiation and mineralization of MC3T3-E1 cells on a biodegradable polymeric scaffold composed of polylactic-co-glycolic acid at the same time points. [J Tissue Eng Regen Med] Abstract

Inhibition of Apoptosis by Knockdown of Caspase-3 with siRNA in Rat Bone Marrow Mesenchymal Stem Cells
Investigators determined whether small interfering RNA (siRNA) targeting caspase-3 can inhibit the apoptosis of rat bone marrow mesenchymal stem cells in vitro. [Exp Biol Med] Abstract

Bmp4 Expressed in Preadipocytes Is Required for the Onset of Adipocyte Differentiation
Researchers characterized the role of endogenous bone morphogenetic protein (Bmp) activity in preadipocytes. Higher levels of phosphorylated Smad1/5/8 were detected in adipogenic cells but not in non-adipogenic cells prior to differentiation induction. [Cytokine] Abstract

Dual Delivery of rhPDGF-BB and Bone Marrow Mesenchymal Stromal Cells Expressing the BMP2 Gene Enhance Bone Formation in a Critical-Sized Defect Model
In in vitro experiments, the dual delivery of rh-platelet-derived growth factor-BB (rhPDGF-BB) and bone morphogenetic protein-2 (BMP2) significantly enhanced cell proliferation. However, the osteogenic differentiation of bone marrow stromal cells (BMSCs) was significantly suppressed even though the amount of BMP-2 secreted by the adenoviral vector containing the BMP2 gene-transfected BMSCs was not significantly affected by the rhPDGF-BB treatment. [Tissue Eng Part A] Abstract

Achieve Superior Differentiation of Mouse MSC & MEF into Osteoblasts with the New MesenCult™ Osteogenic Stimulatory Kit (Mouse)
 
REVIEWS
Adipose-Derived Mesenchymal Stem Cells for Cartilage Tissue Engineering: State-of-the-Art in In Vivo Studies
Since little is known about adipose-derived mesenchymal stem cell (ADSC) cartilage regeneration potential, the aim of this review was to give an overview of in vivo studies about the chondrogenic potential and regeneration ability of culture-expanded ADSCs when implanted in heterotopic sites or in osteoarthritritic and osteochondral defects. [J Biomed Mater Res] Abstract

Visit our reviews page to see a complete list of reviews in the mesenchymal cell research field.
 
INDUSTRY NEWS
BrainStorm’s NurOwn Cell Therapy Receives Orphan Drug Designation in the European Union for ALS
BrainStorm Cell Therapeutics announced that the European Commission has granted Orphan Drug Designation for NurOwn™, the company’s stem cell therapy consisting of autologous bone marrow-derived mesenchymal stromal cells secreting neurotrophic factors, for the treatment of Amyotrophic Lateral Sclerosis (ALS). [BrainStorm Cell Therapeutics] Press Release

BioRestorative Therapies Receives Approval to Conduct Retrospective Safety Study on Its Bulging/Herniated Disc Procedure
BioRestorative Therapies, Inc. announced that it has received approval from the Western Institutional Review Board to complete a retrospective safety study on selected subjects previously treated by the company’s brtxDISC™ bulging and herniated disc procedure. [PR Newswire Association LLC] Press Release

Cardium Reports on New Excellagen-Based Stromal Cell Research for Wound Healing with Orbsen Therapeutics under European FP7 REDDSTAR Diabetes Initiative
Cardium Therapeutics announced that it has entered into an agreement with Orbsen Therapeutics Ltd and the National University of Ireland, Galway, to utilize Cardium’s Excellagen® pharmaceutically-formulated gel as a delivery agent for Orbsen’s proprietary stromal cell therapy in pre-clinical studies for the potential treatment of diabetic foot ulcers. [Cardium Therapeutics] Press Release

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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 World Stem Cell Summit 2013
December 4-6, 2013
San Diego, United States

Visit our events page to see a complete list of events in the mesenchymal cell community.
 
JOB OPPORTUNITIES
NEW Postdoctoral Fellow – Regeneration of Cartilage and Ligament Tissue (University of California, Los Angeles)

NEW Post-Doctoral Fellow/Graduate Research Assistant (Oklahoma State University)

Senior Scientist – Translational Medicine (Celgene Corporation)

PhD Studentship – Mechanobiology of Stem Cells (Queen Mary University of London)

Postdoctoral Position – Cardiopulmonary Molecular Biology (Hannover Medical School)

Director of Cell Processing Facility (S L Collins Associates, Inc.)


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