COMPARISON OF PROLIFERATION AND IMMUNOPHENOTYPE OF MSC, OBTAINEDFROM BONE MARROW, ADIPOSE TISSUE AND UMBILICAL CORD
Mesenchymal stem cells (MSC) can be applied for treatment of different diseases. Human MSC have been isolated from bone marrow, adipose tissue, umbilical cord blood. umbilical cord MSCs (uC- MSC) are obtained during birth with non-invasive, non-traumatic methods and thus seem a good candidate for clinical practice instead of bone-marrow MSC (BM-MSC). It is yet unknown wheth- er the immunophenotype and proliferation capacity of uC-MSC are similar to adipose-derived stem cells (AdSCs) or BM-MSC. The goal of this research was to study the immunophenotype and prolifer- atiion capacity of uC-MSC, AdSCs and BM-MSC. The results indicated that MSC of different origin had similar morphological and immunophenotypic characteristics with minor differences. uC-MSC differed from other cultures by constant level of Cd105 expression, the presence of minor Cd10 - and Cd13 - populations and higher proliferative activity. BM-MSC were characterized by reduced expres- sion levels of Cd90, compared with the uC-MSCs and AdSCs. These data confirm the similarity of uC-MSC with BM-MSCs and AdSCs and the possibility of their use in clinical practice instead of hard-to-obtain BM-MSC.