Open AccessSubpopulations of mobilized hematopoietic stem cells in patients with hematological malignances and donors: expression of CD38, HLA-DR and CD143
Author(s) -
М. Л. Канаева,
Irina Galtseva,
Е Н Паровичникова,
Yulia Davydova,
Т. В. Гапонова,
Е О Грибанова,
Ya. V. Balzhanova,
Л А Кузьмина,
Vera V. Troitskaya,
С К Кравченко,
Е Е Звонков,
Larisa Mendeleeva,
Savchenko Vg
Publication year - 2019
Publication title -
onkogematologiâ
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.118
H-Index - 3
eISSN - 2413-4023
pISSN - 1818-8346
DOI - 10.17650/1818-8346-2019-14-2-48-58
Subject(s) - cd34 , cd38 , haematopoiesis , granulocyte colony stimulating factor , stem cell , leukapheresis , multiple myeloma , immunology , progenitor cell , bone marrow , biology , medicine , chemotherapy , microbiology and biotechnology
The study objective is to investigate the features of subpopulational composition of mobilized hematopoietic stem cells in peripheral blood (PB) and leukocyte concentrates (LC) in adult patients with oncohematological pathology and donors. Materials and methods . In 80 patients with hemoblastoses, expression of CD38, HLA-DR and CD143 (angiotensin-converting enzyme) was measured in PB and LC CD34+CD45low cells. The control group included 10 PB and 14 LC samples from healthy donors. Analysis of PB was performed prior to mobilization of hematopoietic stem cells (HSC) and on the day of leukapheresis prior to HSC collection. LC samples were examined at day 1 after HSC collection. Results. CD143 is expressed on CD34+CD45low cells both prior to mobilization and after it in all patients and donors, but CD34+CD45lowCD143+ cell counts varied depending on diagnosis and mobilization regimen. CD143+ expression on CD34+CD45low cells was significantly higher in patients who received combination of chemotherapy and granulocyte colony-stimulating factor compared to donors and patients with multiple myeloma who received only granulocyte colony-stimulating factor. Along with elevated CD34+CD45low cell count after hematopoiesis stimulation, CD34+CD45lowCD143+ cell counts also increased. It was shown that mobilized HSC almost completely lacks a fraction of early CD34+CD45low progenitor cells not expressing CD38, HLA-DR. Prior to hematopoiesis stimulation among CD34+CD45low cells, CD38+HLADR–cell fractions are prevalent, but after mobilization CD38–HLA-DR+ cell counts increased. No differences between CD34+CD45lowCD143+cell counts in patients with multiple myeloma depending on disease status, sex, age or number of chemotherapy courses prior to HSC mobilizationwere observed. Conclusion . Expression of angiotensin-converting enzyme on CD34+ cells in PB before and after HSC mobilization and in LC was observed. The cell counts varied depending on diagnosis and mobilization regimen.