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Genetic profile of human embryonic stem cells (hESC) grown under different O2 concentrations
Sonia Prado, David Montaner, Dario Melguizo,Rubén Moreno, Joaquín Dopazo and Miodrag Stojkovic.

The development of mammalian embryos during the early stages takes place in a hypoxic environment. After 11 weeks of pregnancy the mother’s blood begins to flow freely in the placental space increasing the partial pressure of oxygen [1-3]. Therefore, we hypothesized that in vitro growth of hESC in normoxic conditions (21% O2) may change the profile and differentiation potential of hESC.

Induced Pluripotency with Endogenous and Inducible Genes

The recent discovery that two partly overlapping sets of four genes induce nuclear reprogramming of mouse and human has opened up new possibilities for cell replacement therapies. Although the combination of genes that induce pluripotency to some extenet, Oct4 and Sox2 appear to be a prerequisite. The introduction of four genes, several of which have been linked with cancer, using retroviral approaches is however unlikely to be suitable for future clinical applications.

Human Fetal Bone Cells Seeded in Hyaluronic Acid Gel As A Delivery System For Bone Engineering
D.Tenorio, L.A.Applegate, S. Jaccoud, C.Scaletta, D.P. Pioletti

Human fetal bone cells seeded in a hyaluronic acid gel as a delivery system, can survive and proliferate within this gel, are positive for alkaline phosphatase and von Kossa staining, demonstrating the potential of these cells bone engineering.

Development of a Bone Marrow Targeting Cell Therapy
Thomas Kean*, Lori Duesler*, Tambet Teesalu**, Erkki Ruoslahti**, James E Dennis*

One major obstacle in stem cell therapy is poor cell engraftment. To address this issue, concurrent investigations were made to develop novel peptides targeting bone marrow and a method to transiently ‘paint’ targeting molecules onto cells. Painting was studied using a model palmitated peptide. Novel bone marrow targeting peptides were sought using in vivo phage display in a locally irradiated mouse model that has an internal control (untreated leg).

Adaptive control of glycerol & methanol feeding in recombinant Pichia pastoris cultures: Impact on antibody titre
Filipe Ataíde, Ana Raquel Ferreira, João J. Clemente, António E. Cunha, Rui Oliveira

Pichia pastoris processes for heterolougous protein expression are typically run in three phases: a batch phase, an exponential feeding fed-batch phase and a long oxygen transfer limitation (OTL) phase. The final protein titre is often limited by the oxygen availability in the OTL phase. Here a direct adaptive controller is designed for the OTL phase. The controller was validated in pilot P. pastoris cultivations expressing a single chain antibody fragment (ScFv). This work shows that the propos

Critical factors for successful RNAi experiments in primary cells and hard to transfect cell lines
Markus Zumbansen1, Nicole Spottke1, Sheila Offizier1, Allison St. Amand2, Devin Leake2, Ludger Altrogge1, Meike Weigel1, Sandra Domzalski1, Dietmar Lenz, and Herbert Müller-Hartmann1

The amaxa Nucleofector® Technology is a well established method for effective, non-viral transfection of any nucleic acid substrate into hard-to-transfect cells, especially suspension and primary cells. With the Nucleofector® 96-well Shuttle® system high throughput applications such as siRNA-library screenings have become amenable for the first time in these cell types. This renders target validation and identification possible in cell types highly relevant for biomedical research. Here we dis

High Content Image Analysis using a Laser Scanning Microplate Cytometer
Paul Wylie, Ben Schenker, Sarah Payne and Andrew Goulter

Microscope-based high-content instruments offer high optical resolution, however, the limited field of view afforded by their objective lenses can mean lengthy read times for some assays, especially where multiple image capture per well is required. Wherever possible, only a small percentage of the total number of cells present in a test well are analysed to keep plate read times at a minimum, which may not always be ideal. Microplate laser- scanning cytometers, such as TTP LabTech’s Acumen® eX3

Stem Cell Derived Human Neurons in CNS Drug Discovery
L Jackson, C Verastegui, C Wells, D Pau, A Nunn, A Finucane, M Lynch, S Boldt, L Gerrard, S.J. MacKenzie

Central nervous system disorders affect many people worldwide. To increase the quality and number of drugs available for treatments of CNS disorders such as Alzheimer’s, schizophrenia and anxiety, the success rate of CNS drug discovery programmes must be improved. The challenge in drug discovery is to develop more relevant assay systems to identify lead compounds for further development. Cell based screening assays currently used for CNS drug development involve primary cells or commercially

Current status and prospects of the commercial storage of adult stem
Alexander E. Rodin, Anatoly N. Gromyko, Alexander B. Smolyaninov

The authors present a result of survey among 300 residents of the Russian Far East on their potential willingness to store cord blood stem cells of their newborns and/or their own gametes for the future needs. The current status of the cord blood banking system in Russia is also described.

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Scientific News
Therapeutic Approach Gives Hope for Multiple Myeloma
A new therapeutic approach tested by a team from Maisonneuve-Rosemont Hospital (CIUSSS-EST, Montreal) and the University of Montreal gives promising results for the treatment of multiple myeloma, a cancer of the bone marrow currently considered incurable with conventional chemotherapy and for which the average life expectancy is about 6 or 7 years.
Cat Stem Cell Therapy Gives Humans Hope
By the time Bob the cat came to the UC Davis veterinary hospital, he had used up most of his nine lives.
Bile Acid Supports Production of Blood Stem Cells
A research group at Lund University has been able to show that bile acid is transferred from the mother to the foetus via the placenta to enable the foetus to produce blood stem cells.
New Biomarker to Assess Stem Cells Developed
A research team led by scientists from UCL have found a way to assess the viability of 'manufactured' stem cells known as induced pluripotent stem cells (iPSCs). The team's discovery offers a new way to fast-track screening methods used in stem cell research.
Tricked-Out Immune Cells Could Attack Cancer
New cell-engineering technique may lead to precision immunotherapies.
Edited Stem Cells Offer Hope of Precision Therapy for Blindness
Findings raise the possibility of treating blinding eye diseases using a patient's own corrected cells as replacement tissue.
Hacking the Programs of Cancer Stem Cells
All tumor cells are the offspring of a single, aberrant cell, but they are not all alike.
Newfound Strength in Regenerative Medicine
A promising new approach uses direct mechanical stimulation to repair severely damaged skeletal muscles.
Mapping out Cell Conversion
Researchers develop algorithm that takes the field of cell reprogramming forward.
Donor's Genotype Controls the Differentiation of IPS Cells
Pluripotent stem cells derived from different cell types are equally susceptible to reprogramming, indicates a recent study by the University of Helsinki and the National Institute for Health and Welfare, Finland. However, the genotype of the donor strongly influences the differentiation of the stem cell.
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