[The study of parameters of mesenchymal stromal cells differentiation in donors and patients with aplastic anemia]

To examine ability of mesenchymal stromal cells (MSC) of the bone marrow (BM) for differentiation in adipogenic and osteogenic differentiation in donors and patients with aplastic anemia (AA).

We obtained MSC cultures from BM cells of donors and AA patients and induced differentiation of mesenchymal cells with use of relevant reagents. Morphological changes in MSC were studied with light microscopy. A relative level of expression of differentiation marker genes in MSC cultures before and after induction of differentiation was analysed with reverse transcription-polymerase chain reaction.

By morphological characteristics, MSC cultures in AA patients before and after differentiation induction do not differ from donor cultures, but relative expression of the genes of differentiation markers demonstrated that expression was different in male and female donors; MSC before and after induction of differentiation differ in donors and AA patients.

Further studies are needed for detection of functional changes in precursors of stromal microenvironment and understanding of the disease pathogenesis.