Growth of human umbilical-cord blood in longterm haemopoietic cultures.
AuthorsHows, Jill M
Bradley, B A
Marsh, Judith C W
Coutinho, Lucia H
Testa, Nydia G
Dexter, T Michael
AffiliationKay Kendall Laboratory, Paterson Institute, Cancer Research Campaign, Manchester, UK.
MetadataShow full item record
AbstractCryopreserved human umbilical-cord (HUC) blood is an alternative to bone marrow as a source of haemopoietic "stem" cells for HLA-identical transplantation of children with leukaemia or Fanconi's anaemia. We have studied the in-vitro growth potential of HUC blood in clonogenic assays and in longterm haemopoietic cultures. Clonogenic assays showed that HUC blood produced as many haemopoietic-cell colonies as normal adult bone marrow and a higher proportion of primitive-cell colonies. In longterm culture on preformed irradiated marrow stroma, both progenitor-cell production and lifespan of cultures were significantly greater in HUC blood than in normal bone marrow (p = 0.0007). Our findings indicate that the quality and quantity of HUC-blood-derived haemopoietic "stem" cells are better than those of normal bone marrow. Therefore, single HUC-blood donations are probably sufficient for adults requiring transplantation for leukaemia and other haemopoietic disorders. Banking of HLA-typed HUC blood to facilitate transplantation of patients who lack a family donor should be considered.
CitationGrowth of human umbilical-cord blood in longterm haemopoietic cultures. 1992, 340 (8811):73-6 Lancet