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English Abstract
Journal Article
Research Support, Non-U.S. Gov't
[Transduction efficiency of recombinant adeno-associated virus 2 in human bone marrow CD34+ hematopoietic stem/progenitor cells and mesenchyme stem cells].
Zhong Nan da Xue Xue Bao. Yi Xue Ban = Journal of Central South University. Medical Sciences 2006 Februrary
OBJECTIVE: To investigate the transduction efficiency of recombinant adeno-associated virus 2 ( rAAV2) in human bone marrow CD34+ hematopoietic stem/progenitor cells and mesenchyme stem cells.
METHODS: The rAAV2 containing green fluorescent protein genes (rAAV2/GFP) were constructed, packaged and purified. CD34+ hematopoietic stem/progenitor cells and mesenchyme stem cells were infected with the rAAV2/GFP. After transduction for 48 hours, the expression of GFP was detected under fluorescence microscope. Furthermore, the transduction efficiency of AAV transduced CD34+ with hydroxyurea (HU) pretreatment and that of untreated were compared.
RESULTS: GFP genes were expressed in 5.3% +/- 1.7% CD34+ cells. After pretreatment with HU, the expression of the GFP gene in CD34+ cells increased to 13.2% +/- 2.8%, and 23% +/- 3.6% mesenchyme stem cells expressed the GFP gene. Conclusion The transduction efficiency of mesenchyme stem cells is higher than that of CD34+ hematopoietic stem/progenitor cells. HU pretreatment can obviously increase the transduction efficiency of CD34+ hematopoietic stem/progenitor cells.
METHODS: The rAAV2 containing green fluorescent protein genes (rAAV2/GFP) were constructed, packaged and purified. CD34+ hematopoietic stem/progenitor cells and mesenchyme stem cells were infected with the rAAV2/GFP. After transduction for 48 hours, the expression of GFP was detected under fluorescence microscope. Furthermore, the transduction efficiency of AAV transduced CD34+ with hydroxyurea (HU) pretreatment and that of untreated were compared.
RESULTS: GFP genes were expressed in 5.3% +/- 1.7% CD34+ cells. After pretreatment with HU, the expression of the GFP gene in CD34+ cells increased to 13.2% +/- 2.8%, and 23% +/- 3.6% mesenchyme stem cells expressed the GFP gene. Conclusion The transduction efficiency of mesenchyme stem cells is higher than that of CD34+ hematopoietic stem/progenitor cells. HU pretreatment can obviously increase the transduction efficiency of CD34+ hematopoietic stem/progenitor cells.
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