Optimization of PTS2-EGFP Expression in CHO and Vero Cells

Objective: Reporter gene transfer to mammalian cells receives a great deal of attention due to its importance for molecular biology, embryology and developmental biology studies. Among DNA transfer technologies to eukaryotic cells, lipofection is known as the most widely used because of its easy han...

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Main Authors: Roozbeh Ghodratnama, Khadijeh Karbalaii, Kamran Ghaedi, Hossein Baharvand, Mohamad Hossien Nasr-Esfahani
Format: Article
Language:English
Published: Royan Institute (ACECR), Tehran 2007-01-01
Series:Cell Journal
Subjects:
Online Access:http://celljournal.org/library/upload/article/Ghodratnama.pdf
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author Roozbeh Ghodratnama
Khadijeh Karbalaii
Kamran Ghaedi
Hossein Baharvand
Mohamad Hossien Nasr-Esfahani
author_facet Roozbeh Ghodratnama
Khadijeh Karbalaii
Kamran Ghaedi
Hossein Baharvand
Mohamad Hossien Nasr-Esfahani
author_sort Roozbeh Ghodratnama
collection DOAJ
description Objective: Reporter gene transfer to mammalian cells receives a great deal of attention due to its importance for molecular biology, embryology and developmental biology studies. Among DNA transfer technologies to eukaryotic cells, lipofection is known as the most widely used because of its easy handling procedure, low cell mortality and the natural pathway it undertakes.Materials and Methods: In this study we have examined the transfectability of two cell types: CHO and Vero cells via Lipofection in four different treatments, with combination of exposure duration, 3 and 6 hrs, and different plasmid DNA concentration, 0.5 and 1μgs. A fusion protein expression vector, pUcD2. PTS2-EGFP was used to direct the EGFP protein to peroxisomes after expression of related cDNA. An SPSS analysis was preformed after counting the positive cells.Results: optimum gene expression was found when using 1 μg DNA treated for three hrs for CHO cells, and 1 μg DNA treated for six hrs for Vero cells.Conclusion: The result suggests that CHO lipofection efficiency is significantly increased by both the DNA concentration and exposure time increment; however, an increase in exposure time has less significant effect on low DNA concentration conditions. The same results have been observed for Vero cells. Optimum expression was obtained with highest DNA concentration.
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spelling doaj.art-46cd617abe1a4fb4957fdce2360706722022-12-22T01:55:22ZengRoyan Institute (ACECR), TehranCell Journal2228-58062228-58142007-01-0193170175Optimization of PTS2-EGFP Expression in CHO and Vero CellsRoozbeh GhodratnamaKhadijeh KarbalaiiKamran GhaediHossein BaharvandMohamad Hossien Nasr-EsfahaniObjective: Reporter gene transfer to mammalian cells receives a great deal of attention due to its importance for molecular biology, embryology and developmental biology studies. Among DNA transfer technologies to eukaryotic cells, lipofection is known as the most widely used because of its easy handling procedure, low cell mortality and the natural pathway it undertakes.Materials and Methods: In this study we have examined the transfectability of two cell types: CHO and Vero cells via Lipofection in four different treatments, with combination of exposure duration, 3 and 6 hrs, and different plasmid DNA concentration, 0.5 and 1μgs. A fusion protein expression vector, pUcD2. PTS2-EGFP was used to direct the EGFP protein to peroxisomes after expression of related cDNA. An SPSS analysis was preformed after counting the positive cells.Results: optimum gene expression was found when using 1 μg DNA treated for three hrs for CHO cells, and 1 μg DNA treated for six hrs for Vero cells.Conclusion: The result suggests that CHO lipofection efficiency is significantly increased by both the DNA concentration and exposure time increment; however, an increase in exposure time has less significant effect on low DNA concentration conditions. The same results have been observed for Vero cells. Optimum expression was obtained with highest DNA concentration.http://celljournal.org/library/upload/article/Ghodratnama.pdfExpression VectorTargeting SignalLipofectionLipoplex
spellingShingle Roozbeh Ghodratnama
Khadijeh Karbalaii
Kamran Ghaedi
Hossein Baharvand
Mohamad Hossien Nasr-Esfahani
Optimization of PTS2-EGFP Expression in CHO and Vero Cells
Cell Journal
Expression Vector
Targeting Signal
Lipofection
Lipoplex
title Optimization of PTS2-EGFP Expression in CHO and Vero Cells
title_full Optimization of PTS2-EGFP Expression in CHO and Vero Cells
title_fullStr Optimization of PTS2-EGFP Expression in CHO and Vero Cells
title_full_unstemmed Optimization of PTS2-EGFP Expression in CHO and Vero Cells
title_short Optimization of PTS2-EGFP Expression in CHO and Vero Cells
title_sort optimization of pts2 egfp expression in cho and vero cells
topic Expression Vector
Targeting Signal
Lipofection
Lipoplex
url http://celljournal.org/library/upload/article/Ghodratnama.pdf
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