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Zhao W, Zhou LY, Kong J, Huang ZH, Gao YD, Zhang ZX, Zhou YJ, Wu RY, Xu HJ, An SJ. Expression of recombinant human Apolipoprotein A-I Milano in Nicotiana tabacum. BIORESOUR BIOPROCESS 2023; 10:4. [PMID: 38647895 PMCID: PMC10992485 DOI: 10.1186/s40643-023-00623-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Accepted: 01/02/2023] [Indexed: 01/22/2023] Open
Abstract
Apolipoprotein A-IMilano (Apo A-IMilano) is a natural mutant of Apolipoprotein. It is currently the only protein that can clear arterial wall thrombus deposits and promptly alleviate acute myocardial ischemia. Apo A-IMilano is considered as the most promising therapeutic protein for treating atherosclerotic diseases without obvious toxic or side effects. However, the current biopharmaceutical platforms are not efficient for developing Apo A-IMilano. The objectives of this research were to express Apo A-IMilano using the genetic transformation ability of N. tabacum. The method is to clone the coding sequence of Apo A-IMilano into the plant binary expression vector pCHF3 with a Flag/His6/GFP tag. The constructed plasmid was transformed into N. tabacum by a modified agrobacterium-mediated method, and transformants were selected under antibiotic stress. PCR, RT-qPCR, western blot and co-localization analysis was used to further verify the resistant N. tabacum. The stable expression and transient expression of N. tabacum were established, and the pure product of Apo A-IMilano was obtained through protein A/G agarose. The results showed that Apo A-IMilano was expressed in N. tabacum with a yield of 0.05 mg/g leaf weight and the purity was 90.58% ± 1.65. The obtained Apo A-IMilano protein was subjected to amino acid sequencing. Compared with the theoretical sequence of Apo A-IMilano, the amino acid coverage was 86%, it is also found that Cysteine replaces Arginine at position 173, which indicates that Apo A-IMilano, a mutant of Apo A-I, is accurately expressed in N. tabacum. The purified Apo A-IMilano protein had a lipid binding activity. The established genetic modification N. tabacum will provide a cost-effective system for the production of Apo A-IMilano. Regarding the rapid propagation of N. tabacum, this system provides the possibility of large-scale production and accelerated clinical translation of Apo A-IMilano.
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Affiliation(s)
- Wei Zhao
- Hebei Provincial Engineering Laboratory of Plant Bioreactor Preparation Technology, Hebei University of Chinese Medicine, No. 326 Xinshi South Road, Shijiazhuang, 050090, Hebei, China
| | - Lu-Yang Zhou
- Hebei Provincial Engineering Laboratory of Plant Bioreactor Preparation Technology, Hebei University of Chinese Medicine, No. 326 Xinshi South Road, Shijiazhuang, 050090, Hebei, China
| | - Jing Kong
- Hebei Provincial Engineering Laboratory of Plant Bioreactor Preparation Technology, Hebei University of Chinese Medicine, No. 326 Xinshi South Road, Shijiazhuang, 050090, Hebei, China
- School of Nursing of Hebei University of Chinese Medicine, No. 326 Xinshi South Road, Shijiazhuang, 050090, Hebei, China
| | - Ze-Hao Huang
- Hebei Provincial Engineering Laboratory of Plant Bioreactor Preparation Technology, Hebei University of Chinese Medicine, No. 326 Xinshi South Road, Shijiazhuang, 050090, Hebei, China
| | - Ya-Di Gao
- Hebei Provincial Engineering Laboratory of Plant Bioreactor Preparation Technology, Hebei University of Chinese Medicine, No. 326 Xinshi South Road, Shijiazhuang, 050090, Hebei, China
| | - Zhong-Xia Zhang
- Hebei Provincial Engineering Laboratory of Plant Bioreactor Preparation Technology, Hebei University of Chinese Medicine, No. 326 Xinshi South Road, Shijiazhuang, 050090, Hebei, China
- School of Nursing of Hebei University of Chinese Medicine, No. 326 Xinshi South Road, Shijiazhuang, 050090, Hebei, China
| | - Yong-Jie Zhou
- Hebei Provincial Engineering Laboratory of Plant Bioreactor Preparation Technology, Hebei University of Chinese Medicine, No. 326 Xinshi South Road, Shijiazhuang, 050090, Hebei, China
| | - Ruo-Yu Wu
- Hebei Provincial Engineering Laboratory of Plant Bioreactor Preparation Technology, Hebei University of Chinese Medicine, No. 326 Xinshi South Road, Shijiazhuang, 050090, Hebei, China
| | - Hong-Jun Xu
- Hebei Provincial Engineering Laboratory of Plant Bioreactor Preparation Technology, Hebei University of Chinese Medicine, No. 326 Xinshi South Road, Shijiazhuang, 050090, Hebei, China.
| | - Sheng-Jun An
- Hebei Provincial Engineering Laboratory of Plant Bioreactor Preparation Technology, Hebei University of Chinese Medicine, No. 326 Xinshi South Road, Shijiazhuang, 050090, Hebei, China.
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Feng J, Zhang J, Song W, Liu J, Hu Z, Bao B. An environmental-friendly magnetic bio-adsorbent for high-efficiency Pb(Ⅱ) removal: Preparation, characterization and its adsorption performance. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 203:111002. [PMID: 32684519 DOI: 10.1016/j.ecoenv.2020.111002] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 06/30/2020] [Accepted: 07/05/2020] [Indexed: 06/11/2023]
Abstract
In this paper, environmental friendly magnetic composite adsorbent (MSAL), exhibited excellent adsorption capacity for lead ions in the solution, was successfully prepared using two non-biologically toxic materials including L-cysteine and sodium alginate. Batch experiments were carried out to discuss the influences of different parameters like pH, adsorbent dosing, initial concentration and contact time on adsorption performance. Results showed sorption process followed by pseudo-second-order kinetic model and Langmuir isotherm model, which suggested the adsorption was limited by the chemical process dominated by the molecular layer. Based on Langmuir isotherm model, the maximum Pb(Ⅱ) adsorption capacity was about 330 mg/g, which was better than a large amount of other lead adsorbents. Various analytical methods, such as SEM-EDS, FTIR, VSM, TGA, XPS and Zeta potential, were applied to characterize the performance of this adsorbent as well as exploring the adsorption mechanism. Characterization results found this adsorbent exhibited a large contact area, good thermal stability, sufficient adsorption sites and excellent magnetic responsiveness. It also has been found that the adsorption mechanism mainly included ion exchange and chelation between amino, carboxyl and lead ions. After 5 cycles, the adsorption capacity decreased from 98.04% to 87.40% and still maintained at high level. The average iron ions concentration in the adsorbed solution sample or in the regeneration solution were 0.34 mg/L and 0.15 mg/L. Overall, all above results imply that MSAL is a promising reusable adsorbent for removing Pb(Ⅱ) in solution.
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Affiliation(s)
- Jiaying Feng
- School of Environmental Science and Engineering of Guangdong University of Technology, Guangzhou, 510006, China; Guangdong Institute of Resources Comprehensive Utilization, Guangzhou, 510651, China; State Key Laboratory of Separation and Comprehensive Utilization of Rare Metals, Guangzhou, 510651, China; The Key Laboratory for Mineral Resources R&D and Comprehensive Utilization of Guangdong, Guangzhou, 510651, China
| | - Jun Zhang
- Guangdong Institute of Resources Comprehensive Utilization, Guangzhou, 510651, China; State Key Laboratory of Separation and Comprehensive Utilization of Rare Metals, Guangzhou, 510651, China; The Key Laboratory for Mineral Resources R&D and Comprehensive Utilization of Guangdong, Guangzhou, 510651, China
| | - Weifeng Song
- School of Environmental Science and Engineering of Guangdong University of Technology, Guangzhou, 510006, China.
| | - Jianguo Liu
- Guangdong Institute of Resources Comprehensive Utilization, Guangzhou, 510651, China; State Key Laboratory of Separation and Comprehensive Utilization of Rare Metals, Guangzhou, 510651, China; The Key Laboratory for Mineral Resources R&D and Comprehensive Utilization of Guangdong, Guangzhou, 510651, China
| | - Zhicheng Hu
- Guangdong Institute of Resources Comprehensive Utilization, Guangzhou, 510651, China; State Key Laboratory of Separation and Comprehensive Utilization of Rare Metals, Guangzhou, 510651, China; The Key Laboratory for Mineral Resources R&D and Comprehensive Utilization of Guangdong, Guangzhou, 510651, China
| | - Bingqin Bao
- School of Environmental Science and Engineering of Guangdong University of Technology, Guangzhou, 510006, China; Guangdong Institute of Resources Comprehensive Utilization, Guangzhou, 510651, China; State Key Laboratory of Separation and Comprehensive Utilization of Rare Metals, Guangzhou, 510651, China; The Key Laboratory for Mineral Resources R&D and Comprehensive Utilization of Guangdong, Guangzhou, 510651, China
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Reijers JAA, Kallend DG, Malone KE, Jukema JW, Wijngaard PLJ, Burggraaf J, Moerland M. MDCO-216 Does Not Induce Adverse Immunostimulation, in Contrast to Its Predecessor ETC-216. Cardiovasc Drugs Ther 2018; 31:381-389. [PMID: 28844118 PMCID: PMC5591804 DOI: 10.1007/s10557-017-6746-x] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Purpose Aim of this study was to demonstrate that MDCO-216 (human recombinant Apolipoprotein A-I Milano) does not induce adverse immunostimulation, in contrast to its predecessor, ETC-216, which was thought to contain host cell proteins (HCPs) that elicited an inflammatory reaction. Methods Data were taken from a clinical trial in which 24 healthy volunteers (HV) and 24 patients with proven stable coronary artery disease (sCAD) received a single intravenous dose of MDCO-216, ranging 5–40 mg/kg. Additionally, whole blood from 35 HV, 35 sCAD patients and 35 patients requiring acute coronary intervention (aCAD group) was stimulated ex vivo with MDCO-216 and ETC-216. Results No inflammatory reaction was observed in HV and sCAD patients following MDCO-216 treatment, judging by body temperature, white cell counts, neutrophil counts, C-reactive protein, circulating cytokines (IL-6, TNF-α), and adverse events. In the ex vivo experiment, the geometric means (SD) of the ratio of MDCO-216 stimulated IL-6 over background levels were 0.8 (1.9), 0.7 (1.5), 1.0 (2.0) for respectively HV, sCAD, aCAD. The corresponding ETC-216 stimulated values were 15.8 (2.9), 9.5 (3.6), 3.8 (4.0). TNF-α results were comparable. Because many ETC-216 stimulated samples had cytokine concentrations >ULOQ, ratios were categorised and marginal homogeneity of the contingency table (MDCO-216 versus ETC-216) was assessed with the Stuart-Maxwell test. P-values were ≤0.0005 for all populations. Conclusions MDCO-216 did not induce adverse immunostimulation in HV and sCAD patients, in contrast to ETC-216. Results from the ex vivo stimulation suggests the same holds true for aCAD patients.
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Affiliation(s)
- Joannes A A Reijers
- Centre for Human Drug Research, Zernikedreef 8, 2333CL, Leiden, The Netherlands. .,Department of Rheumatology, Leiden University Medical Center, Leiden, The Netherlands.
| | | | - K E Malone
- Good Biomarker Sciences, Leiden, The Netherlands.,Janssen Prevention Center, Janssen Vaccines and Prevention B.V, Leiden, The Netherlands
| | - J W Jukema
- Department of Cardiology, Leiden University Medical Center, Leiden, The Netherlands
| | | | - J Burggraaf
- Centre for Human Drug Research, Zernikedreef 8, 2333CL, Leiden, The Netherlands
| | - M Moerland
- Centre for Human Drug Research, Zernikedreef 8, 2333CL, Leiden, The Netherlands
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Luo H, Macapagal N, Newell K, Man A, Parupudi A, Li Y, Li Y. Effects of salt-induced reversible self-association on the elution behavior of a monoclonal antibody in cation exchange chromatography. J Chromatogr A 2014; 1362:186-93. [DOI: 10.1016/j.chroma.2014.08.048] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2014] [Revised: 08/13/2014] [Accepted: 08/14/2014] [Indexed: 01/15/2023]
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Angarita M, Arosio P, Müller-Späth T, Baur D, Falkenstein R, Kuhne W, Morbidelli M. Role of urea on recombinant Apo A-I stability and its utilization in anion exchange chromatography. J Chromatogr A 2014; 1354:18-25. [DOI: 10.1016/j.chroma.2014.05.067] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2014] [Revised: 05/23/2014] [Accepted: 05/27/2014] [Indexed: 10/25/2022]
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Thompson JH, Chung WK, Zhu M, Tie L, Lu Y, Aboulaich N, Strouse R, Mo WD. Improved detection of host cell proteins (HCPs) in a mammalian cell-derived antibody drug using liquid chromatography/mass spectrometry in conjunction with an HCP-enrichment strategy. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2014; 28:855-860. [PMID: 24623688 DOI: 10.1002/rcm.6854] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2013] [Revised: 01/21/2014] [Accepted: 01/22/2014] [Indexed: 06/03/2023]
Abstract
RATIONALE Host cell proteins (HCPs), which are process-related impurities typically present at low levels in recombinant biopharmaceutical products, are often measured using an immunological technique, such as an enzyme-linked immunosorbent assay (ELISA). In contrast to ELISA which only provides the total amount of HCP, liquid chromatography/mass spectrometry (LC/MS) can provide both qualitative and quantitative information about the major HCP species. In this study, an HCP-enrichment step was optimized and combined with LC/MS to identify and determine the relative abundance of HCPs present in a monoclonal antibody (mAb) drug product. METHODS An NS0 (mouse myeloma) cell-derived mAb drug product, whose total HCP level was less than 100 ng/mg of protein, was subjected to analysis by LC/MS. One-dimensional and two-dimensional chromatography options, together with the off-line HCP enrichment strategy based on Protein A chromatography, were evaluated for optimal HCP detection. RESULTS With this approach, nineteen HCPs were detected from a therapeutic mAb, an improvement over the detection of only one HCP without depletion. CONCLUSIONS Compared with other published HCP studies with LC/MS, the HCP-enrichment step in our method enables a more practical and relevant application to approved protein therapeutics, which are mostly mammalian cell-derived products with HCPs present at very low levels.
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Bankston TE, Carta G. Apolipoprotein A-I(Milano) anion exchange chromatography: Self association and adsorption equilibrium. Biotechnol J 2011; 5:1028-39. [PMID: 20931599 DOI: 10.1002/biot.201000221] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The self-associative properties of apolipoprotein A-I(Milano) (apoA-I(M)) were investigated in relationship to its anion exchange behavior on Q-Sepharose-HP with and without the addition of urea as a denaturant. Self-association was dependent on protein and urea concentration and both influenced interactions of the protein with the chromatographic surface. In the absence of urea, apoA-I(M) was highly associated and existed primarily as a mixture of homodimer, tetramer and hexamer forms. Under these conditions, since the binding strength was greater for the oligomer forms, broad, asymmetrical peaks were obtained in both isocratic and gradient elution. Adding urea depressed self-association and caused unfolding. This resulted in sharper peaks but also decreased the binding strength. Thus, under these conditions chromatographic elution occurred at lower salt concentrations. The adsorption isotherms obtained at high protein loadings were also influenced by self-association and by the varying binding strength of the differently associated and unfolded forms. The isotherms were thus dependent on protein, urea, and salt concentration. Maximum binding capacity was obtained in the absence of urea, where adsorption of oligomers was shown to be dominant. Adding urea reduced the apparent binding capacity and weakened the apparent binding strength. A steric mass action model accounting for competitive binding of the multiple associated forms was used to successfully describe the equilibrium binding behavior using parameters determined from isocratic elution and isotherm experiments.
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Affiliation(s)
- Theresa E Bankston
- Department of Chemical Engineering, University of Virginia, Charlottesville, VA 22904-4741, USA
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Caparon MH, Rust KJ, Hunter AK, McLaughlin JK, Thomas KE, Herberg JT, Shell RE, Lanter PB, Bishop BF, Dufield RL, Wang X, Ho SV. Integrated solution to purification challenges in the manufacture of a soluble recombinant protein in E. coli. Biotechnol Bioeng 2010; 105:239-49. [PMID: 19777583 DOI: 10.1002/bit.22542] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Apolipoprotein A 1 Milano (ApoA-1M), the protein component of a high-density lipoprotein (HDL) mimic with promising potential for reduction of atherosclerotic plaque, is produced at large scale by expression in E. coli. Significant difficulty with clearance of host cell proteins (HCPs) was experienced in the original manufacturing process despite a lengthy downstream purification train. Analysis of purified protein solutions and intermediate process samples led to identification of several major HCPs co-purifying with the product and a bacterial protease potentially causing a specific truncation of ApoA-1M found in the final product. Deletion of these genes from the original host strain succeeded in substantially reducing the levels of HCPs and the truncated species without adversely affecting the overall fermentation productivity, contributing to a much more efficient and robust new manufacturing process.
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Suda EJ, Thomas KE, Pabst TM, Mensah P, Ramasubramanyan N, Gustafson ME, Hunter AK. Comparison of agarose and dextran-grafted agarose strong ion exchangers for the separation of protein aggregates. J Chromatogr A 2009; 1216:5256-64. [DOI: 10.1016/j.chroma.2009.05.021] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2009] [Revised: 05/07/2009] [Accepted: 05/11/2009] [Indexed: 12/11/2022]
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Ho SV, McLaughlin JK, Thomas KE, Suda E, Herberg JT, Dufield RL, Hunter AK. Reaction kinetics and optimization of the copper-catalyzed oxidation of ApoA-1M. Chem Eng Sci 2009. [DOI: 10.1016/j.ces.2009.02.035] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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