Latest Posters

The work presented in this poster covers the investigation of key parameters for the expansion of stem cells in an automated micro-well format. The effect of inoculation seeding density (ICD), well size, passage number and feeding strategies on the proliferation of human mesenchymal stromal cells (hMSC) was investigated. In parallel the effect of well size and seeding density on the proliferation of mouse embryonic stem (mES) cells was also examined.

Recent in vivo studies have demonstrated that transplanted MSC in mice were able to migrate into various tissues including lung, brain, bone marrow, heart and many others. Nevertheless, mechanisms responsible for the MSC migration remain unclear.

20 tuberculosis (12 slow-responders and 8 fast responders) patients were treated with directly observed short course anti-tuberculosis chemotherapy. Chest X-ray was performed. sICAM-1 and suPAR were measured in serum by ELISA, TNFRs using the luminex technology. General discrimination analysis on selected analytes gave, 91.66% and 87,50% correctly classify fast responders and slow responder respectively. The support vector machine analysis gave 100% correct classification.

In stem cell cultures there is the possibility of infectious disease transmission to the recipients. Any microbial contamination of the donor`s biological products or introduced during the manufacturing process can potentially present a serious hazard to the recipients. The majority of potential contaminants are mycoplasma and other bacterias, yeasts and fungi. Moreover, viral and prion contamination of cell cultures and “feeder” cells is also a common risk.

This poster describes an in vitro model of DAG-induced osteogenic differentiation of bone marrow mesenchymal stem using various osteoblastic markers. Human MSC should constitute a useful in vitro tool to the effects of osteotropic cancer cells on osteoblast differentiation and to better understand the inhibition of normal formation during the process of tumor-induced osteolysis.

The transplant of cells of human origin is a sector of medicine which shows a high increase and which entails great opportunities for treatment of certain diseases. Stem cell banks should assure the quality, the traceability and the safety of cultures in order to avoid transmission of disease.

The effects of aging on human mesenchymal stem cells, (MSC) were investigated. MSC were isolated from patients of different ages and the different parameters of aging were measured either immediately after isolation or after long-term cultivation in vitro. Markers of senescence were investigated, including p21, p53 and beta-galactosidase levels. Antioxidative defense capacity of the MSC were tested together with markers of oxidative damage and antioxidative enzyme activities.