Our objective was to study the kinetics of circulating endothelial cells (EC) and endothelial precursor cells (EPC) in hematological patients during chemotherapy and autologous stem cell transplantion (ASCT). Eighteen newly diagnosed patients and 17 patients undergoing ASCT were studied and compared to healthy controls. ECs were evaluated as CD146+CD31+Lin- cells, while EPCs were evaluated as CD34+CD133+Lin-, or CD34+VEGFR2+Lin- cells, or CFU-En colony forming units. Numbers of these cells were evaluated before and after treatment, and, in patients treated with ASCT, during mobilization of hematopoietic progenitors. Both newly diagnosed patients and patients before ASCT had significantly higher number of CD146+CD31+Lin- cells and significantly lower number of CFU-En colonies than healthy controls. These parameters did not return to normal for at least 3 months after chemotherapy or ASCT. Numbers of CFU-En did not correlate either with numbers of CD34+CD133+Lin- cells or with numbers of CD34+VEGFR2+Lin- cells but they did correlate with numbers of CD4+ lymphocytes and NK cells. In conclusion, we have found that hematological patients have higher number of EC and lower numbers of CFU-En than healthy controls and that these parameters do not return to normal after short-term follow-up. Furthermore, our observations support emerging data that CFU-En represent cell population different from flowcytometrically defined EC and endothelial precursors and that their development requires cooperation of monocytes and CD4+ lymphocytes. However, cells forming CFU-En express endothelial surface markers and can contribute to proper endothelial function by NO production.

• MeSH
• analýza kolonii tvořících jednotek MeSH
• antigen CD146 krev   MeSH
• antigeny CD31 krev   MeSH
• antigeny CD34 krev   MeSH
• autologní transplantace MeSH
• CD antigeny krev   MeSH
• endoteliální buňky metabolismus   patologie   MeSH
• farmakoterapie metody   MeSH
• glykoproteiny krev   MeSH
• hematologické nádory krev   farmakoterapie   chirurgie   MeSH
• kmenové buňky metabolismus   patologie   MeSH
• lidé středního věku MeSH
• lidé MeSH
• mladý dospělý MeSH
• peptidy krev   MeSH
• protokoly antitumorózní kombinované chemoterapie terapeutické užití   MeSH
• průtoková cytometrie MeSH
• receptor 2 pro vaskulární endoteliální růstový faktor krev   MeSH
• senioři nad 80 let MeSH
• senioři MeSH
• transplantace hematopoetických kmenových buněk metody   MeSH
• výsledek terapie MeSH
• Check Tag
• lidé středního věku MeSH
• lidé MeSH
• mladý dospělý MeSH
• mužské pohlaví MeSH
• senioři nad 80 let MeSH
• senioři MeSH
• ženské pohlaví MeSH
• Publikační typ
• časopisecké články MeSH
• práce podpořená grantem MeSH