
تعداد نشریات | 24 |
تعداد شمارهها | 847 |
تعداد مقالات | 7,528 |
تعداد مشاهده مقاله | 13,264,951 |
تعداد دریافت فایل اصل مقاله | 11,507,871 |
Cloning and high level expression of bovine interferon gamma gene in eukaryotic cells (COS-7) | ||
Iranian Journal of Veterinary Research | ||
مقاله 3، دوره 11، شماره 2 - شماره پیاپی 31، 2010، صفحه 125-133 اصل مقاله (394.19 K) | ||
نوع مقاله: Full paper (Original article) | ||
شناسه دیجیتال (DOI): 10.22099/ijvr.2010.149 | ||
نویسندگان | ||
S. A. H. Jalali1؛ Gh. Nikbakht Brujeni* 2؛ H. Tadjbakhsh3؛ M. K. Koohi4؛ M. Gholkar5؛ M. Rabbani6 | ||
1Ph.D. Student in Biotechnology, Department of Pathobiology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran | ||
2Department of Pathobiology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran | ||
3Fellow Member of Academy of Science of Iran, Tehran, Iran | ||
4Department of Basic Sciences, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran | ||
5Department of Parasitology, Pasteur Institute, Tehran, Iran | ||
6Department of Biotechnology, Faculty of Sciences, University of Isfahan, Isfahan, Iran | ||
چکیده | ||
Interferon gamma (IFN-γ) is one of the key cytokines in defining T helper 1 lymphocyte immune responses. In this study, the bovine IFN-γ gene was cloned from spleen tissue RNA using the reverse transcription-polymerase chain reaction (RT-PCR). IFN-γ cDNA was sub-cloned and expressed in mammalian expression plasmid (pcDNA3.1(+)) under the control of the human cytomegalovirus (CMV) promoter. The predicted amino acid (aa) sequence of bovine IFN-γ compared with corresponding known sequence from bovine (Bos taurus) was 100% identity and with ovine, caprine, camel, lama, equine, canine, feline, human, mice and chicken cytokine was 95, 95, 86, 83, 77, 75, 75, 61, 44 and 35%, respectively. Invitro expression of recombinant bovine IFN-γ (rBoIFN-γ) and secretion to culture medium was confirmed by ELISA test. Maximum expression of rBoIFN-γ occurred at 96 and 144 h after transfection in COS-7 cells. These results showed that pcDNA3.1 expression vector and COS-7 cells transfected by diethylaminoethyl (DEAE)-dextran allowed the high level expression of bovine IFN-γ gene and the release of protein in supernatant of cell culture. | ||
کلیدواژهها | ||
Interferon gamma؛ Bovine؛ Cloning؛ COS-7 | ||
آمار تعداد مشاهده مقاله: 2,262 تعداد دریافت فایل اصل مقاله: 2,264 |