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Avicenna Journal of Medical Biotechnology، جلد ۱۳، شماره ۴، صفحات ۱۹۲-۲۰۰
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| عنوان فارسی |
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| چکیده فارسی مقاله |
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| کلیدواژه‌های فارسی مقاله |
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| عنوان انگلیسی |
Production of PEGylated G-CSF from non-classical inclusion bodies expressed in Escherichia coli |
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| چکیده انگلیسی مقاله |
Background: The recombinant human granulocyte colony stimulating factor conjugated with polyethylene glycol (PEGylated GCSF) has currently been used as an efficient drug for the treatment of neutropenia caused by chemotherapy due to its long circulating half-life. Previous studies showed that Granulocyte Colony Stimulating Factor (GCSF) could be expressed as non-classical Inclusion Bodies (ncIBs), which contained likely correctly folded GCSF inside at low temperature. Therefore, in this study, a simple process was developed to produce PEGylated GCSF from ncIBs. Methods: BL21 (DE3)/pET-GCSF cells were cultured in the LiFlus GX 1.5 L bioreactor and the expression of GCSF was induced by adding 0.5 mM IPTG. After 24 hr of fermentation, cells were collected, resuspended, and disrupted. The insoluble fraction was obtained from cell lysates and dissolved in 0.1% N-lauroylsarcosine solution. The presence and structure of dissolved GCSF were verified using SDS-PAGE, Native-PAGE, and RP-HPLC analyses. The dissolved GCSF was directly used for the conjugation with 5 kDa PEG. The PEGylated GCSF was purified using two purification steps, including anion exchange chromatography and gel filtration chromatography. Results: PEGylated GCSF was obtained with high purity (~97%) and was finally demonstrated as a form containing one GCSF molecule and one 5 kDa PEG molecule (monoPEG-GCSF). Conclusion: These results clearly indicate that the process developed in this study might be a potential and practical approach to produce PEGylated GCSF from ncIBs expressed in Escherichia coli (E. coli). |
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| کلیدواژه‌های انگلیسی مقاله |
Granulocyte colony stimulating factor (G-CSF), Inclusion bodies, Polyethylene glycol |
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| نویسندگان مقاله |
| Nguyen Thi My Trinh
Vietnam National University, Ho Chi Minh City, Vietnam
| Tran Linh Thuoc
Vietnam National University, Ho Chi Minh City, Vietnam
| Dang Thi Phuong Thao
Department of Molecular and Environmental Biotechnology, University of Science, Ho Chi Minh City, Vietnam
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| نشانی اینترنتی |
https://www.ajmb.org/En/Article.aspx?id=40477 |
| فایل مقاله |
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| زبان مقاله منتشر شده |
en |
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