Defective ability to self-renew in vitro of highly purified primitive haematopoietic cells
| Autor: | Brian I Lord, Elaine Spooncer, Thomas Michael Dexter |
|---|---|
| Rok vydání: | 1985 |
| Předmět: |
education.field_of_study
Multidisciplinary Stromal cell Population Bone Marrow Cells Cell Separation Biology Cell sorting Hematopoietic Stem Cells Hematopoiesis Cell biology Haematopoiesis medicine.anatomical_structure Cell culture Immunology medicine Humans Bone marrow Stem cell education Cell Division Cells Cultured Whole Bone Marrow |
| Zdroj: | Nature. 316:62-64 |
| ISSN: | 1476-4687 0028-0836 |
| DOI: | 10.1038/316062a0 |
| Popis: | Stromal cells play a critical role in haematopoiesis, both in a permissive and, probably, in a directive manner1–5. Study of the interactions between stromal cells and haematopoietic stem cells, however, is difficult to perform using whole bone marrow, in which stem cells are indistinguishable from precursor cells and maturing haematopoietic cells, and where stromal and haematopoietic cells co-exist in a heterogeneous mixture. We have purified primitive haematopoietic spleen colony-forming cells (CFU-S) using fluorescence-activated cell sorting (FACS) and produced CFU-S populations which approach 100% purity (ref. 6 and B.I.L. and E.S., in preparation). This cell population is devoid of significant stromal cells and mature haematopoietic cells. Here, we report that when purified CFU-S are seeded onto a stromal adherent layer in vitro, foci of haematopoietic cells develop within the stroma followed by production of a wave of maturing and mature progeny. However, self-renewal of CFU-S does not occur and haematopoietic activity rapidly declines, indicating that caution should be applied in the use of highly purified stem cells for human bone marrow transplantation. |
| Databáze: | OpenAIRE |
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