Journal
CLONING AND STEM CELLS
Volume 10, Issue 4, Pages 421-428Publisher
MARY ANN LIEBERT, INC
DOI: 10.1089/clo.2008.0015
Keywords
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Funding
- Natural Scientific Foundation of China
- State High-Tech Research and Development Program
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Both enhanced green fluorescence protein (EGFP) and neomycin phosphotransferase type II enzyme (NPTII) are widely used in transgenic studies, but their side effects have not been extensively investigated. In this study, we evaluated the expression profiles of the two marker genes and the relationship between their expression and organ abnormalities. Eight transgenic cloned cattle were Studied, four harboring both EGFP and NPTII, and four harboring only the NPTII gene. Four age-matched cloned cattle were used as controls. EGFP and NPTII expression were measured and detected by Q-PCR, Western blot, ELISA, and RIA in heart, liver, and lungs, and the values ranged from 0.3 to 5 mu g/g, The expression profiles exhibited differential or mosaic pattern between the organs, the pathologic symptoms of which were identified, but were similar to those of age-matched cloned cattle. All data indicated that the expression of EGFP and NPTII is not associated with organ abnormalities in transgenic cloned cattle.
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