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Overexpression of Recombinant Human Granulocyte Colony-Stimulating Factor in E. coli | ||
Iranian Journal of Medical Sciences | ||
مقاله 7، دوره 28، شماره 3، بهمن 2003، صفحه 131-134 اصل مقاله (56.47 K) | ||
نوع مقاله: Original Article(s) | ||
نویسندگان | ||
M J Fallah* 1؛ B Akbari1؛ A.R Saeedinia1؛ M Karimi2؛ M Vaez1؛ M Zeinoddini1؛ M Soleimani3؛ N Maghsoudi1 | ||
1Department of Genetic Engineering, Research Center for Science and Biotechnology, Tehran, Iran | ||
2Department of Biotechnology, Pasteur Institute of Iran, Tehran, Iran | ||
3Department of Hematology, Tarbiat Modarres University, School of Medicine,Tehran, Iran | ||
چکیده | ||
Bakground: Granulocyte colony-stimulating factor (G-CSF) is a cytokine that stimulates hematopoiesis and induces proliferation and differentiation of granulocyte progenitor cells as well as production of bone marrow neutrophilic granulocyte colonies. Nowadays, human recombinant G-CSF(hr G-CSF)is used for the treatment of chemotherapy- and radiotherapy-induced neutropenia, and also in patients with bone marrow transplantation. Methods: A cDNA of human G-CSF (hG-CSF) was synthesized by PCR from recombinant cloning vector, with two altered nucleotides for increasing mRNA stability and overexpression, then inserted into a pET expression vector under the control of T7 promoter and cloned in E. coli strain BL21 (DE3). Results: After culture and induction of recombinant E. coli with IPTG, we achieved a high level expression of the hG-CSF, where it represented approximately 35% of the total protein as determined by SDS-PAGE and confirmed by western blotting with polyclonal and monoclonal hG-CSF antibodies. Conclusion: rhG-CSF was produced in a significantly high quantity with a yield of 35% of total protein as determined by SDS-PAGE. Since it is easily obtained by simple purification steps, it may be cost-effective, even on an industrial scale. | ||
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