Construction of COX-2 short hairpin RNA expression vector and its inhibitory effect on hepatic fibrosis
The aim of this study was to construct recombinant adenovirus vector carrying a short hairpin RNA (shRNA) that can exclusively target cyclooxygenase-2 (COX-2) gene expression and observe its inhibitory effect on hepatic fibrosis. We designed and synthesized three oligonucleotide sequences, and clone...
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doaj-f37361e848b3421bbad26817ada3dd692020-11-25T02:08:04ZengTaylor & Francis GroupBiotechnology & Biotechnological Equipment1310-28181314-35302018-05-0132365366210.1080/13102818.2018.14315691431569Construction of COX-2 short hairpin RNA expression vector and its inhibitory effect on hepatic fibrosisNi Xie0Hong Wu Liao1Wen Sheng Ou2Xu Zhou3Yang Hu4Nian Fu5Xue Feng Yang6Duan-Fang Liao7University of South ChinaUniversity of South ChinaThe First People's Hospital of ChenzhouUniversity of South ChinaUniversity of South ChinaUniversity of South ChinaUniversity of South ChinaHunan University of Chinese MedicineThe aim of this study was to construct recombinant adenovirus vector carrying a short hairpin RNA (shRNA) that can exclusively target cyclooxygenase-2 (COX-2) gene expression and observe its inhibitory effect on hepatic fibrosis. We designed and synthesized three oligonucleotide sequences, and cloned those into a shuttle vector, pYr-1.1-hU6-EGFP, after annealing. The restriction-enzyme digestion and sequencing analyses confirmed that the constructed recombinant eukaryotic expression vector was correct. A recombination reaction using LR Clonase was performed for the pYr-1.1-hU6-EGFP COX-2shRNA and the adenovirus vector pAd/BL-DEST to form Ad-COX-2shRNA. The adenoviruses containing the recombinant plasmids were transfected into hepatic stellate cells (HSCs). The transfection efficiency of the three COX-2 shRNAs exceeded 70%. Reverse transcription PCR (RT-PCR) and western blot confirmed that the target gene expression was decreased at the level of mRNA and protein, and the interference effect of COX-2 shRNA-1 was better than that of the other two COX-2 shRNAs. COX-2 shRNA-1 recombinant adenovirus vectors (1 × 109 PFU/mL) were injected via the tail vein into rats fed a high-fat diet with a 40% carbon tetrachloride peanut oil lavage, which induced liver fibrosis. Rats were euthanized at the end of the 12th week, and their liver was removed. Liver expression of COX-2 mRNA and protein was detected by RT-PCR and immunohistochemistry, respectively. RT-PCR and immunohistochemistry showed that COX-2 shRNA-1 inhibited COX-2 expression in liver tissue. Hematoxylin/eosin and Masson staining showed that COX-2 shRNA-1 ameliorated the severity of liver fibrosis. The COX-2 shRNA eukaryotic expression vectors were constructed successfully and COX-2 shRNA-1 ameliorated liver fibrosis.http://dx.doi.org/10.1080/13102818.2018.1431569Cyclooxygenase-2recombinant adenovirus vectorliver fibrosisshort hairpin RNA |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Ni Xie Hong Wu Liao Wen Sheng Ou Xu Zhou Yang Hu Nian Fu Xue Feng Yang Duan-Fang Liao |
spellingShingle |
Ni Xie Hong Wu Liao Wen Sheng Ou Xu Zhou Yang Hu Nian Fu Xue Feng Yang Duan-Fang Liao Construction of COX-2 short hairpin RNA expression vector and its inhibitory effect on hepatic fibrosis Biotechnology & Biotechnological Equipment Cyclooxygenase-2 recombinant adenovirus vector liver fibrosis short hairpin RNA |
author_facet |
Ni Xie Hong Wu Liao Wen Sheng Ou Xu Zhou Yang Hu Nian Fu Xue Feng Yang Duan-Fang Liao |
author_sort |
Ni Xie |
title |
Construction of COX-2 short hairpin RNA expression vector and its inhibitory effect on hepatic fibrosis |
title_short |
Construction of COX-2 short hairpin RNA expression vector and its inhibitory effect on hepatic fibrosis |
title_full |
Construction of COX-2 short hairpin RNA expression vector and its inhibitory effect on hepatic fibrosis |
title_fullStr |
Construction of COX-2 short hairpin RNA expression vector and its inhibitory effect on hepatic fibrosis |
title_full_unstemmed |
Construction of COX-2 short hairpin RNA expression vector and its inhibitory effect on hepatic fibrosis |
title_sort |
construction of cox-2 short hairpin rna expression vector and its inhibitory effect on hepatic fibrosis |
publisher |
Taylor & Francis Group |
series |
Biotechnology & Biotechnological Equipment |
issn |
1310-2818 1314-3530 |
publishDate |
2018-05-01 |
description |
The aim of this study was to construct recombinant adenovirus vector carrying a short hairpin RNA (shRNA) that can exclusively target cyclooxygenase-2 (COX-2) gene expression and observe its inhibitory effect on hepatic fibrosis. We designed and synthesized three oligonucleotide sequences, and cloned those into a shuttle vector, pYr-1.1-hU6-EGFP, after annealing. The restriction-enzyme digestion and sequencing analyses confirmed that the constructed recombinant eukaryotic expression vector was correct. A recombination reaction using LR Clonase was performed for the pYr-1.1-hU6-EGFP COX-2shRNA and the adenovirus vector pAd/BL-DEST to form Ad-COX-2shRNA. The adenoviruses containing the recombinant plasmids were transfected into hepatic stellate cells (HSCs). The transfection efficiency of the three COX-2 shRNAs exceeded 70%. Reverse transcription PCR (RT-PCR) and western blot confirmed that the target gene expression was decreased at the level of mRNA and protein, and the interference effect of COX-2 shRNA-1 was better than that of the other two COX-2 shRNAs. COX-2 shRNA-1 recombinant adenovirus vectors (1 × 109 PFU/mL) were injected via the tail vein into rats fed a high-fat diet with a 40% carbon tetrachloride peanut oil lavage, which induced liver fibrosis. Rats were euthanized at the end of the 12th week, and their liver was removed. Liver expression of COX-2 mRNA and protein was detected by RT-PCR and immunohistochemistry, respectively. RT-PCR and immunohistochemistry showed that COX-2 shRNA-1 inhibited COX-2 expression in liver tissue. Hematoxylin/eosin and Masson staining showed that COX-2 shRNA-1 ameliorated the severity of liver fibrosis. The COX-2 shRNA eukaryotic expression vectors were constructed successfully and COX-2 shRNA-1 ameliorated liver fibrosis. |
topic |
Cyclooxygenase-2 recombinant adenovirus vector liver fibrosis short hairpin RNA |
url |
http://dx.doi.org/10.1080/13102818.2018.1431569 |
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