Volume 5.06 | Feb 19

Mesenchymal Cell News 5.06 February 19, 2013
     In this issue: Publications | Reviews | Industry News | Policy News | Events | Jobs 
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TOP STORY
Pkcδ Is Required for Jagged-1 Induction of hMSC Osteogenic Differentiation
Overexpression of the notch-2 intracellular domain is sufficient to mimic the effect of Jagged-1 ligand (Jag1) on human mesenchymal stem cells (hMSC) osteoblastogenesis, while blocking Notch signaling with a gamma-secretase inhibitor or with dominant negative mastermind inhibits Jag1 induced hMSC osteoblastogenesis. In pursuit of interacting signaling pathways, scientists discovered that treatment with a PKCδ inhibitor abrogates Jag1 induced hMSC osteoblastogenesis. [Stem Cells] Abstract | Press Release

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PUBLICATIONS (Ranked by impact factor of the journal)

Shockwaves Induce Osteogenic Differentiation of Human Mesenchymal Stem Cells through ATP Release and Activation of P2X7 Receptors
Shockwave treatment promotes bone healing of non-union fracture. Researchers investigated whether this effect could be due to ATP release-induced differentiation of human mesenchymal stem cells (hMSCs) into osteoprogenitor cells. Cultured bone marrow-derived hMSCs were subjected to shockwave treatment and ATP release was assessed. [Stem Cells] Abstract | Full Article

Platelet Lysate Coating on Scaffolds Enhances Directly and Indirectly Cell Migration Improving Bone and Blood Vessel Formation
Investigators aimed to determine if the delivery of human mesenchymal stromal cells (hMSC) seeded on human platelet lysate-coated HA/βTCP scaffolds could enhance vascularization and bone formation, as well as to investigate the mechanisms by which hMSC participate to tissue regeneration. [Acta Biomater] Abstract

Prospective Isolation of Mesenchymal Stem Cells from Human Bone Marrow Using Novel Antibodies Directed against Sushi Domain Containing 2 (SUSD2)
Recently, the authors described the monoclonal antibodies W3D5 and W5C5, which selectively react with Bone Marrow derived Mesenchymal Stem/Stromal Cells (BM-MSCs) but not with hematopoietic cells. Both antibodies showed an identical reactivity pattern, indicating that they may recognize the same molecule. To identify the cognate antigen, cultured MSCs were sorted for cells expressing either very high levels of W5C5/W3D5 antigen or for cells which were negative for this antigen. [Stem Cell Dev] Abstract

Stromal Targeting of Sodium Iodide Symporter Using Mesenchymal Stem Cells Allows Enhanced Imaging and Therapy of Hepatocellular Carcinoma
Using a human hepatocellular cancer xenograft mouse model, scientists investigated distribution and tumor recruitment of RANTES-sodium iodide symporter-engineered mesenchymal stem cells after systemic injection by gamma camera imaging. [Hum Gen Ther] Abstract

Lectin-Like Oxidized LDL Receptor-1 Expresses in Mouse Bone Marrow-Derived Mesenchymal Stem Cells and Stimulates their Proliferation
Researchers investigated the status of Lectin-like oxidized low density lipoprotein (LDL) receptor-1 expression in bone marrow-derived mesenchymal stem cells (bmMSCs) and its function on bmMSC proliferation. [Exp Cell Res] Abstract

Effects of Salinomycin on Human Bone Marrow-Derived Mesenchymal Stem Cells In Vitro
Various hypotheses on the origin of cancer stem cells (CSCs) exist, including that CSCs develop from transformed human bone marrow mesenchymal stem cells (hBMSC). Since the polyether antibiotic salinomycin selectively kills CSCs, the authors aimed to elucidate the effects of salinomycin on normal hBMSC. [Toxicol Lett] Abstract

Mesenchymal Stem Cells from Amnion and Amniotic Fluid in Bovine
Scientists obtained and characterized, for the first time in bovine species, presumptive mesenchymal stem cells from the epithelial portion of the amnion and from the amniotic fluid to be used for clinical applications. [Reproduction] Abstract

Electromagnetic Fields Induce Neural Differentiation of Human Bone Marrow Derived Mesenchymal Stem Cells via Reactive Oxygen Species Mediated Epidermal Growth Factor Receptor Activation
To find out the signaling pathways involved in the neural differentiation of human bone marrow mesenchymal stem cells by electromagnetic fields, researchers examined the CREB phosphorylation and Akt or ERK activation as an upstream of CREB. [Neurochem Int] Abstract

Human Adipose Tissue-Derived Mesenchymal Stem Cells Improve Cognitive Function and Physical Activity in Aging Mice
Human adipose tissue-derived mesenchymal stem cells (ADMSCs) were intravenously or intracerebroventricularly transplanted into the brains of 18-month-old mice once or four times at two-week intervals. Transplantation of ADMSCs improved both locomotor activity and cognitive function in the aged animals, in parallel with recovery of acetylcholine levels in brain tissues. [J Neurosci Res] Abstract

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REVIEWS

Differentiation of Mesenchymal Stem Cells to Osteoblasts and Chondrocytes: A Focus on Adenosine Receptors
This review highlights the known contribution of cyclic-AMP signaling to mesenchymal stem cell differentiation to osteoblasts and to chondrocytes. Focus has been given to how these regulators influence the commitment of the osteochondroprogenitor to these separate lineages. [Expert Rev Mol Med] Abstract
INDUSTRY NEWS
USC Launches Regenerative Medicine and Stem Cell Research Initiative
A new University of Southern California (USC) initiative has been introduced to support collaborative research in regenerative medicine and stem cell biology across the university, facilitating the critical move from basic research into clinical applications. [University of Southern California] Press Release

JDRF and California Institute for Regenerative Medicine Increase Funding of ViaCyte
JDRF and the California Institute for Regenerative Medicine (CIRM) announced that they are providing additional funding for the development of a novel stem cell therapy by San Diego-based ViaCyte, Inc.; JDRF and CIRM will each contribute $3 million to further advance the project. [PR Newswire Association LLC]
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 American Society of Gene & Cell Therapy (ASGCT) 16th Annual Meeting
May 15-18, 2013
Salt Lake City, United States

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

JOB OPPORTUNITIES

Postdoctoral Position – Tumorigenicity of Mesenchymal Stem Cells (Weizmann Institute of Science)

Postdoctoral Position – Stem Cell Biology (Johns Hopkins School of Medicine)

Postdoctoral Position – Myeloproliferative Neoplasms (Mount Sinai Medical Center)

Postdoctoral Position – Mesenchymal Stem/Stromal Cells in Acute Myeloid Leukemia (University of Bergen)

Postdoctoral Position – Cancer and Stem Cell Biology (University of Texas at Houston)

Faculty Position – Stem Cell Biology (SARITE Center for Stem Cell Engineering Translational Medicine)

Full Professorship – Stem Cell Biology (Helmholtz Zentrum Munchen)

Postdoctoral Position – Dysregulation of Hematopoietic and Mesenchymal Stem Cells (Indiana University)


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