Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: EC:2.3.1.28 (chloramphenicol acetyltransferase)
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We tested the hypothesis that targeted disruption of cationic microbubble-linked plasmid DNA, using diagnostic ultrasound, may aid transfection of large animal myocardium. Plasmid DNA encoding for CAT (pCAT, chloramphenicol acetyltransferase) was bound to a novel cationic microbubble containing MRX-225 for intravenous administration, and 16 dogs in 4 groups variously received this conjugate or plasmid only, or were exposed to ultrasound. Histochemical staining and enzyme-linked immunosorbent assay analysis showed CAT activity in the myocardium of only those animals that received microbubble-linked DNA and were exposed to ultrasound. Thus, disruption of cationic-linked, low-dose plasmid systems by diagnostic ultrasound may facilitate transfection of large animal hearts.
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PMID:Ultrasound-mediated transfection of canine myocardium by intravenous administration of cationic microbubble-linked plasmid DNA. 1187 83