PMID- 8641364 OWN - NLM STAT- MEDLINE DCOM- 19960717 LR - 20071114 IS - 0301-472X (Print) IS - 0301-472X (Linking) VI - 24 IP - 2 DP - 1996 Feb TI - Influence of retroviral-mediated gene transduction of both the recombinant human erythropoietin receptor and interleukin-9 receptor genes into single CD34++CD33-or low cord blood cells on cytokine-stimulated erythroid colony formation. PG - 347-51 AB - Introduction of genes for cytokine receptors into hematopoietic stem/progenitor cells (HSC/HPC) may be of clinical use in the future. We recently reported that retroviral-mediated transduction of either the human erythropoietin receptor (hEpoR) or interleukin-9 receptor (hIL-9R) genes into highly purified HSC/HPC from cord blood (CB) resulted in increased numbers of detectable cytokine-responsive erythroid progenitors (burst-forming units-erythroid [BFU-E]). In the present study, we evaluated if this increase could be further enhanced by cotransducing both these genes into single isolated HSC/HPC. Single CD34++CD33-or low-expressing cells from CB were transduced with viral supernatant containing the hEpoR or hIL-9R genes or cotransduced with both genes. In the presence of Steel factor (SLF), interleukin-3 (IL-3), granulocyte-macrophage colony-stimulating factor (GM-CSF), erythropoietin (Epo), and IL-9, the numbers of erythroid colonies formed were significantly increased after transduction of cells with either the hIL-9R or hEpoR gene compared to mock-transduced cells. This increase was significantly enhanced in cells cotransduced with both genes compared with either gene alone. Integration and expression of both genes was confirmed by polymerase chain reaction (PCR) and reverse-transcriptase (RT)-PCR analysis, respectively. The data demonstrate that myeloid progenitors can be transduced at the single-cell level with both hEpoR and hIL-9R genes with resultant enhanced proliferation of these progenitors in the erythroid lineage by combinations of cytokines including Epo and IL-9. FAU - Lu, L AU - Lu L AD - Department of Medicine (Hematology/Oncology), Indiana University School of Medicine, Indianapolis 46202-5121, USA. FAU - Ge, Y AU - Ge Y FAU - Li, Z H AU - Li ZH FAU - Xiao, M AU - Xiao M FAU - Broxmeyer, H E AU - Broxmeyer HE LA - eng GR - R01 HL-46549/HL/NHLBI NIH HHS/United States GR - R01 HL-49202/HL/NHLBI NIH HHS/United States GR - R37 CA36464/CA/NCI NIH HHS/United States GR - etc. PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, P.H.S. PL - Netherlands TA - Exp Hematol JT - Experimental hematology JID - 0402313 RN - 0 (Antigens, CD34) RN - 0 (Hematopoietic Cell Growth Factors) RN - 0 (IL9R protein, human) RN - 0 (Interleukin-3) RN - 0 (Interleukin-9) RN - 0 (Receptors, Erythropoietin) RN - 0 (Receptors, Interleukin) RN - 0 (Receptors, Interleukin-9) RN - 0 (Recombinant Fusion Proteins) RN - 0 (Stem Cell Factor) RN - 11096-26-7 (Erythropoietin) RN - 83869-56-1 (Granulocyte-Macrophage Colony-Stimulating Factor) SB - IM MH - Antigens, CD34 MH - Base Sequence MH - Cell Differentiation/drug effects MH - Cell Division/drug effects MH - Cell Separation MH - Clone Cells/drug effects MH - Colony-Forming Units Assay MH - Erythropoiesis/*drug effects MH - Erythropoietin/pharmacology MH - Fetal Blood/*cytology MH - Genetic Vectors MH - Granulocyte-Macrophage Colony-Stimulating Factor/pharmacology MH - Hematopoietic Cell Growth Factors/*pharmacology MH - Hematopoietic Stem Cells/classification/*metabolism MH - Humans MH - Interleukin-3/pharmacology MH - Interleukin-9/*pharmacology MH - Molecular Sequence Data MH - Receptors, Erythropoietin/biosynthesis/*genetics MH - Receptors, Interleukin/biosynthesis/*genetics MH - Receptors, Interleukin-9 MH - Recombinant Fusion Proteins/*metabolism MH - Retroviridae/genetics MH - Stem Cell Factor/pharmacology MH - Transfection EDAT- 1996/02/01 00:00 MHDA- 1996/02/01 00:01 CRDT- 1996/02/01 00:00 PHST- 1996/02/01 00:00 [pubmed] PHST- 1996/02/01 00:01 [medline] PHST- 1996/02/01 00:00 [entrez] PST - ppublish SO - Exp Hematol. 1996 Feb;24(2):347-51.