PMID- 29596634 OWN - NLM STAT- MEDLINE DCOM- 20190905 LR - 20190906 IS - 1574-6968 (Electronic) IS - 0378-1097 (Linking) VI - 365 IP - 9 DP - 2018 May 1 TI - Expression and purification of biologically active recombinant rabbit monocyte chemoattractant protein1 in Escherichia coli. LID - 10.1093/femsle/fny070 [doi] AB - Monocyte chemoattractant protein 1 (MCP1) with recruiting monocytes is an important factor at the beginning of inflammatory disorders such as atherosclerosis which seems its blocking preclude this process and help improvement of related diseases. To perform clinical research in this field, MCP1 protein is required but firstly, animal studies should be done. As the rabbit is a suitable model for many inflammatory disorders, and Escherichia coli BL21(DE3) (BL21) cell is a high-efficiency host for protein expression, we decided to produce recombinant rabbit MCP1 (rRMCP1) in BL21/pET28a system. After codon usage, a construct containing RMCP1 sequence was synthesized, cloned into the pET28a plasmid, and overexpressed in BL21 cells. Followed that, with changing expression condition such as cell concentration before the induction, time period, temperature, shaking rate and inducer concentration (IPTG), rRMCP1 expression was optimized, and purified by Ni-NTA. The biological activity of the expressed protein was verified using monocyte migration assay. Using this expression system, nearly 28 mg/mL rRMCP1 was produced at 26 degrees C/180 rpm for 24 h in LB broth medium with 1 mM IPTG. Therefore, we were succeeded to express the intermediate level of rRMCP1 with this method. This amount of protein is sufficient for biological researches in the laboratory. FAU - Boshtam, Maryam AU - Boshtam M AD - Isfahan Cardiovascular Research Center, Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan 8174643446, Iran. FAU - Khanahmad Shahreza, Hossein AU - Khanahmad Shahreza H AD - Genetic and Molecular Biology, Faculty of Medicine, Isfahan University of Medical Sciences, Isfahan 8174643446, Iran. FAU - Feizollahzadeh, Sadegh AU - Feizollahzadeh S AD - Faculty of Paramedical, Urmia University of Medical Sciences, Urmia 5756115198, Iran. FAU - Rahimmanesh, Ilnaz AU - Rahimmanesh I AD - Genetic and Molecular Biology, Faculty of Medicine, Isfahan University of Medical Sciences, Isfahan 8174643446, Iran. FAU - Asgary, Sedigheh AU - Asgary S AD - Isfahan Cardiovascular Research Center, Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan 8174643446, Iran. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - England TA - FEMS Microbiol Lett JT - FEMS microbiology letters JID - 7705721 RN - 0 (Chemokine CCL2) RN - 0 (Codon) RN - 0 (Recombinant Proteins) SB - IM MH - Animals MH - Chemokine CCL2/*genetics/*isolation & purification/metabolism MH - Cloning, Molecular MH - Codon/genetics MH - Escherichia coli/*genetics/metabolism MH - *Gene Expression MH - Protein Engineering MH - Rabbits/genetics MH - Recombinant Proteins/genetics/isolation & purification/metabolism EDAT- 2018/03/30 06:00 MHDA- 2019/09/07 06:00 CRDT- 2018/03/30 06:00 PHST- 2018/01/29 00:00 [received] PHST- 2018/03/26 00:00 [accepted] PHST- 2018/03/30 06:00 [pubmed] PHST- 2019/09/07 06:00 [medline] PHST- 2018/03/30 06:00 [entrez] AID - 4955552 [pii] AID - 10.1093/femsle/fny070 [doi] PST - ppublish SO - FEMS Microbiol Lett. 2018 May 1;365(9). doi: 10.1093/femsle/fny070.