Resumo

DE LA CAMPA, Jesús Diego et al. Obtention and processing of peripheral hematopoietic progenitor cells. Rev Cubana Hematol Inmunol Hemoter [online]. 2003, vol.19, n.2-3. ISSN 0864-0289.

A descriptive study of all the collections of hematopoietic progenitor cells obtained by leukophoresis at the Blood Bank of "Hermanos Ameijeiras" Hospital from April, 2001, to April, 2002, was conducted. A continual flow equipment (FRESENIUS ASTEC 204) was used and the mononuclear program with the P1Y set was applied. Weight, height, haematocrit, haemoglobin, leukocyte and platelet count of the donors were determined before the collection. In the product of the leukophoresis, the leukocyte count with differential, the CD34+/CD45+ cells count (by immunofluorescence technique in flow cytometer) and the determination of cellular viability with propidium iodide in this equipment (Facscan, Becton Dickinson), were analyzed. 5 patients recieved autologous transplantations and 2 allogeneic transplantations. The first were diagnosed non-Hodgkin lymphoma (3), Hodgkin disease (1), and rheumatoid arthritis (1); whereas the others were affected by chronic myeloid leukemia (1) and non-Hodgkin lymphoma. All of them were attended at the Hematology Service of our center. The mean of the CD34+ cell count per each leukophoresis for autologous transplantation was 2.4 x 106 Kg, whereas in the allogeneic it was 21.96 x 106 Kg. The results show that by the adjustment of the cycle volume, the centrifugal speed, the overflowing volume and the cellular volume, it was possible to obtain a count of haematopoietic precursor cells in the collection similar to the reported by other authors, guaranteeing that the transfused product has the necessary cellularity to repopulate the bone marrow after the patient is treated with high doses of immunosuppressor therapy and/or radiations

Palavras-chave : LEUKAPHERESIS; TRANSPLANTATION, AUTOLOGOUS; TRANSPLANTATION, HOMOLOGOUS; CD34 ANTIGENS; BONE MARROW CELLS [transplantation]; STEM CELL TRANSPLANTATION.