V. Gabutti et al., HUMAN CORD-BLOOD PROGENITORS - KINETICS, REGULATION AND THEIR USE FORHEMATOPOIETIC RECONSTITUTION, Bone marrow transplantation, 12, 1993, pp. 84-86
The high number of cord blood (CB) hematopoietic progenitors made poss
ible CB transplantation in children with hematologic diseases. We coll
ected and cryopreserved CB from siblings of 11 hematologic pediatric p
atients for possible transplant. The number of BFU-E+CFU-GEMM and CFU-
GM was adequate for engraftment. However the possibility of CB transpl
antation in adolescents and adults is limited by the amount of CB that
can be collected. We studied the possibility of expanding the pool of
CB hematopoietic progenitors by preincubation of CB CD 34+ cells with
several cytokynes. After pre-exposition to rhIL-3, , IL-1 beta, rIL-6
, GM-CSF and stem cell factor(SCF) and cloning with SCF the number of
hematopoietic progenitors increased 14-18 fold compared to basal value
s.