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1.
Chinese Journal of Applied Physiology ; (6): 259-262, 2012.
Article Dans Chinois | WPRIM | ID: wpr-329893

Résumé

<p><b>OBJECTIVE</b>To get stable cell line expressing B domain-deleted human FVIII (BDDhFVIII) by constructing the eukaryotic expression plasmid.</p><p><b>METHODS</b>Eukaryotic expression plasmid containing BDDhFVIII was constructed and transfected into HepG2 cells via electroporation. The expression and purification of the target protein was detected by Western blot.</p><p><b>RESULTS</b>Results of enzyme digestion and sequence analysis demonstrated that the gene of BDDhFVIII was correctly inserted into the eukaryotic expression vector pcDNA4/v5-his. Western blot confirmed the successful expression of BDDhFVIII at the protein levels in HepG2 cells.</p><p><b>CONCLUSION</b>The constructed eukaryotic expression vector was able to generate high level expression of human FVIII in HepG2 cells, thus could construct human blood coagulation FVIII stable cell line successfully.</p>


Sujets)
Humains , Électroporation , Facteur VIII , Génétique , Expression des gènes , Vecteurs génétiques , Hémophilie A , Génétique , Cellules HepG2 , Plasmides , Recombinaison génétique
2.
Journal of Experimental Hematology ; (6): 566-569, 2011.
Article Dans Chinois | WPRIM | ID: wpr-313943

Résumé

This study was purposed to investigate the expression of ADAR1 isoforms of P110 and P150 during the development of murine leukemia. A Notch1 over-expressing murine T cell acute lymphoblastic leukemia model was used to study the expression of ADAR1. BMMNC were isolated at different stages of disease and CD45.2(+)GFP(+) leukemia cells were sorted by flow cytometry at late stage. The expression of ADAR1 was detected by real time quantitative PCR. The results showed that mouse bone marrow cells from both leukemia and control groups expressed P110 and P150. Difference of P110 and P150 mRNA expression were observed during the development of leukemia. The expression of P110 dramatically increased and was significantly higher than that in control group. However, the expression level of P150 in leukemia group decreased stably and reached one-fourth of that in control group at 14 day. Furthermore, similar expression patterns could be detected in sorted CD45.2(+)GFP(+) leukemia cells. It is concluded that the mRNA expressions of P110 and P150 show diverse patterns in the development of leukemia, suggesting that RNA editing mediated by ADAR1 isoforms may play different roles in leukemia.


Sujets)
Animaux , Souris , Adenosine deaminase , Génétique , Expression des gènes , Leucémie-lymphome lymphoblastique à précurseurs T , Génétique , Isoformes de protéines , Génétique , Édition des ARN , ARN messager , Génétique , Protéines de liaison à l'ARN
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