کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2433555 1106838 2007 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Detection of supercoiled plasmid DNA and luciferase expression in Atlantic salmon (Salmo salar L.) 535 days after injection
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم آبزیان
پیش نمایش صفحه اول مقاله
Detection of supercoiled plasmid DNA and luciferase expression in Atlantic salmon (Salmo salar L.) 535 days after injection
چکیده انگلیسی

In this study our aim was to investigate the persistence and distribution of plasmid DNA in Atlantic salmon. Atlantic salmon (mean weight 70 g) were injected with 100 μg of plasmid DNA in 100 μl of phosphate buffered saline. The fish were reared in running fresh water at temperature 0–12 °C and injections were performed at 8 °C. After intramuscular injection, samples were obtained from blood and different tissues and organs up to day 535 after injection. We found by use of Southern blotting open circular and supercoiled plasmid DNA at the injection site and plasmid DNA fragments, assessed by real-time PCR, were detected in some of the examined tissues up to day 535. A co-persistence of luciferase transcript and activity were identified at the injection site up to day 535, however analysis of DAM methylation pattern suggested that the plasmid DNA did not replicate in vivo. Our study indicated that the plasmid DNA can persist for a prolonged time after intramuscular injection.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fish & Shellfish Immunology - Volume 23, Issue 4, October 2007, Pages 867–876
نویسندگان
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