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Zwies C, Vargas Rodríguez ÁM, Naumann M, Seifert F, Pietzsch M. Alternative strategies for the recombinant synthesis, DOPA modification and analysis of mussel foot proteins - A case study for Mefp-3 from Mytilus edulis. Protein Expr Purif 2024; 219:106483. [PMID: 38609025 DOI: 10.1016/j.pep.2024.106483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 03/28/2024] [Accepted: 04/04/2024] [Indexed: 04/14/2024]
Abstract
Mussel foot proteins (Mfps) possess unique binding properties to various surfaces due to the presence of L-3,4-dihydroxyphenylalanine (DOPA). Mytilus edulis foot protein-3 (Mefp-3) is one of several proteins in the byssal adhesive plaque. Its localization at the plaque-substrate interface approved that Mefp-3 plays a key role in adhesion. Therefore, the protein is suitable for the development of innovative bio-based binders. However, recombinant Mfp-3s are mainly purified from inclusion bodies under denaturing conditions. Here, we describe a robust and reproducible protocol for obtaining soluble and tag-free Mefp-3 using the SUMO-fusion technology. Additionally, a microbial tyrosinase from Verrucomicrobium spinosum was used for the in vitro hydroxylation of peptide-bound tyrosines in Mefp-3 for the first time. The highly hydroxylated Mefp-3, confirmed by MALDI-TOF-MS, exhibited excellent adhesive properties comparable to a commercial glue. These results demonstrate a concerted and simplified high yield production process for recombinant soluble and tag-free Mfp3-based proteins with on demand DOPA modification.
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Affiliation(s)
- Constanze Zwies
- Martin-Luther-University Halle-Wittenberg, Institute of Pharmacy, Weinbergweg 22, 06120, Halle (Saale), Germany.
| | | | - Marcel Naumann
- Fraunhofer Institute for Cell Therapy and Immunology, Department of Drug Design and Target Validation, Weinbergweg 22, 06120, Halle (Saale), Germany
| | - Franziska Seifert
- Martin-Luther-University Halle-Wittenberg, Institute of Pharmacy, Weinbergweg 22, 06120, Halle (Saale), Germany
| | - Markus Pietzsch
- Martin-Luther-University Halle-Wittenberg, Institute of Pharmacy, Weinbergweg 22, 06120, Halle (Saale), Germany
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2
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Hamasaki M, Takamatsu S, Nagata M, Wilson E, Suzuki H, Tanaka A, Ikebukuro K, Sode K, Asano R. Development of DNA aptamers universally bound to single-chain fragment variables and their applications in bioprocess monitoring. Biosens Bioelectron 2024; 261:116511. [PMID: 38917513 DOI: 10.1016/j.bios.2024.116511] [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: 11/07/2023] [Revised: 06/09/2024] [Accepted: 06/17/2024] [Indexed: 06/27/2024]
Abstract
Single-chain fragment variables (scFvs), composed of variable heavy and light chains joined together by a peptide linker, can be produced using a cost-effective bacterial expression system, making them promising candidates for pharmaceutical applications. However, a versatile method for monitoring recombinant-protein production has not yet been developed. Herein, we report a novel anti-scFv aptamer-based biosensing system with high specificity and versatility. First, anti-scFv aptamers were screened using the competitive systematic evolution of ligands by exponential enrichment, focusing on a unique scFv-specific peptide linker. We selected two aptamers, P1-12 and P2-63, with KD = 2.1 μM or KD = 1.6 μM toward anti-human epidermal growth factor receptor (EGFR) scFv, respectively. These two aptamers can selectively bind to scFv but not to anti-EGFR Fv. Furthermore, the selected aptamers recognized various scFvs with different CDRs, such as anti-4-1BB and anti-hemoglobin scFv, indicating that they recognized a unique peptide linker region. An electrochemical sensor for anti-EGFR scFv was developed using anti-scFv aptamers based on square wave voltammetry. Thus, the constructed sensor could monitor anti-EGFR scFv concentrations in the range of 10-500 nM in a diluted medium for bacterial cultivation, which covered the expected concentration range for the recombinant production of scFvs. These achievements promise the realization of continuous monitoring sensors for pharmaceutical scFv, which will enable the real-time and versatile monitoring of large-scale scFv production.
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Affiliation(s)
- Mai Hamasaki
- Department of Biotechnology and Life Science, Graduate School of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo, 184-8588, Japan; Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Chapel Hill, NC, 27599, USA
| | - Shouhei Takamatsu
- Department of Biotechnology and Life Science, Graduate School of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo, 184-8588, Japan
| | - Madoka Nagata
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Chapel Hill, NC, 27599, USA
| | - Ellie Wilson
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Chapel Hill, NC, 27599, USA
| | - Hirobumi Suzuki
- Department of Biotechnology and Life Science, Graduate School of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo, 184-8588, Japan
| | - Ayumi Tanaka
- Department of Biotechnology and Life Science, Graduate School of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo, 184-8588, Japan
| | - Kazunori Ikebukuro
- Department of Biotechnology and Life Science, Graduate School of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo, 184-8588, Japan.
| | - Koji Sode
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Chapel Hill, NC, 27599, USA.
| | - Ryutaro Asano
- Department of Biotechnology and Life Science, Graduate School of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo, 184-8588, Japan; Institute of Global Innovation Research, Tokyo University of Agriculture and Technology, 3-8-1 Harumi-cho, Fuchu, Tokyo, 183-8538, Japan.
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3
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Clifford R, Lindman S, Zhu J, Luo E, Delmar J, Tao Y, Ren K, Lara A, Cayatte C, McTamney P, O'Connor E, Öhman J. Production of native recombinant proteins using a novel split intein affinity technology. J Chromatogr A 2024; 1724:464908. [PMID: 38669943 DOI: 10.1016/j.chroma.2024.464908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Revised: 04/09/2024] [Accepted: 04/11/2024] [Indexed: 04/28/2024]
Abstract
Affinity tags are frequently engineered into recombinant proteins to facilitate purification. Although this technique is powerful, removal of the tag is desired because the tag can interfere with biological activity and can potentially increase the immunogenicity of therapeutic proteins. Tag removal is complex, as it requires adding expensive protease enzymes. To overcome this limitation, split intein based affinity purification systems have been developed in which a CC-intein tag is engineered into a protein of interest for binding to a NC-intein peptide ligand fixed to a chromatographic support. Tag removal in these systems is achieved by creating an active intein-complex during protein capture, which triggers a precise self-cleavage reaction. In this work, we show applications of a new split intein system, Cytiva™ ProteinSelect™. One advantage of the new system is that the NC-intein ligand can be robustly produced and conjugated to large volumes of resin for production of gram scale proteins. SARS-CoV-2 spike protein receptor binding domain and a Bispecific T Cell Engager in this work were successfully captured on the affinity resin and scaled 10-fold. Another advantage of this system is the ability to sanitize the resin with sodium hydroxide without loosing the 10-20 g/L binding capacity. Binding studies with IL-1b and IFNAR-1 ECD showed that the resin can be regenerated and sanitized for up to 50 cycles without loosing binding capacity. Additionally, after several cycles of sanitization, binding capacity was retained for the SARS-CoV-2 spike protein receptor binding domain and a Bispecific T Cell Engager. As with other split intein systems, optimization was needed to achieve ideal expression and recovery. The N-terminal amino acid sequence of the protein of interest required engineering to enable the cleavage reaction. Additionally, ensuring the stability of the CC-intein tag was important to prevent premature cleavage or truncation. Controlling the hold time of the expression product and the prevention of protease activity prior to purification was needed. These results demonstrate the feasibility of the Cytiva™ ProteinSelect™ system to be used in academic and industrial research and development laboratories for the purification of novel proteins expressed in either bacterial or mammalian systems.
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Affiliation(s)
- Robert Clifford
- Purification Process Sciences, Process and Analytical Sciences, R&D Biopharmaceuticals, AstraZeneca LLC, One Medimmune Way, Gaithersburg, MD 20878, USA
| | | | - Jie Zhu
- Cell Culture & Fermentation Sciences, R&D Biopharmaceuticals, AstraZeneca LLC, One Medimmune Way, Gaithersburg, MD 20878, USA
| | - Ethan Luo
- Cell Culture & Fermentation Sciences, R&D Biopharmaceuticals, AstraZeneca LLC, One Medimmune Way, Gaithersburg, MD 20878, USA
| | - Jared Delmar
- Physicochemical Development, Process and Analytical Sciences, R&D Biopharmaceuticals, AstraZeneca LLC, One Medimmune Way, Gaithersburg, MD 20878, USA
| | - Yeqing Tao
- Physicochemical Development, Process and Analytical Sciences, R&D Biopharmaceuticals, AstraZeneca LLC, One Medimmune Way, Gaithersburg, MD 20878, USA
| | - Kuishu Ren
- Virology and Targeted Therapeutics, Virology and Vaccine Discovery, Vaccines & Immune Therapies Unit, AstraZeneca LLC, One Medimmune Way, Gaithersburg, MD 20878, USA
| | - Abigail Lara
- Immune Engagers, Early ICC Discovery, R&D Oncology, AstraZeneca LLC, One Medimmune Way, Gaithersburg, MD 20878, USA
| | - Corinne Cayatte
- Immune Engagers, Early ICC Discovery, R&D Oncology, AstraZeneca LLC, One Medimmune Way, Gaithersburg, MD 20878, USA
| | - Patrick McTamney
- Virology and Targeted Therapeutics, Virology and Vaccine Discovery, Vaccines & Immune Therapies Unit, AstraZeneca LLC, One Medimmune Way, Gaithersburg, MD 20878, USA
| | - Ellen O'Connor
- Purification Process Sciences, Process and Analytical Sciences, R&D Biopharmaceuticals, AstraZeneca LLC, One Medimmune Way, Gaithersburg, MD 20878, USA.
| | - Johan Öhman
- Cytiva, Björkgatan 30, Uppsala, 753 23, Sweden
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Buzan MR, Grijincu M, Zbîrcea LE, Haidar L, Tamaș TP, Cotarcă MD, Tănasie G, Weber M, Babaev E, Stolz F, Valenta R, Păunescu V, Panaitescu C, Chen KW. Insect Cell-Expressed Major Ragweed Allergen Amb a 1.01 Exhibits Similar Allergenic Properties to Its Natural Counterpart from Common Ragweed Pollen. Int J Mol Sci 2024; 25:5175. [PMID: 38791214 PMCID: PMC11121294 DOI: 10.3390/ijms25105175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Revised: 04/29/2024] [Accepted: 05/04/2024] [Indexed: 05/26/2024] Open
Abstract
Common ragweed pollen allergy has become a health burden worldwide. One of the major allergens in ragweed allergy is Amb a 1, which is responsible for over 90% of the IgE response in ragweed-allergic patients. The major allergen isoform Amb a 1.01 is the most allergenic isoform in ragweed pollen. So far, no recombinant Amb a 1.01 with similar allergenic properties to its natural counterpart (nAmb a 1.01) has been produced. Hence, this study aimed to produce a recombinant Amb a 1.01 with similar properties to the natural isoform for improved ragweed allergy management. Amb a 1.01 was expressed in insect cells using a codon-optimized DNA construct with a removable N-terminal His-Tag (rAmb a 1.01). The recombinant protein was purified by affinity chromatography and physicochemically characterized. The rAmb a 1.01 was compared to nAmb a 1.01 in terms of the IgE binding (enzyme-linked immunosorbent assay (ELISA), immunoblot) and allergenic activity (mediator release assay) in well-characterized ragweed-allergic patients. The rAmb a 1.01 exhibited similar IgE reactivity to nAmb a 1.01 in different IgE-binding assays (i.e., IgE immunoblot, ELISA, quantitative ImmunoCAP inhibition measurements). Furthermore, the rAmb a 1.01 showed comparable dose-dependent allergenic activity to nAmb a 1.01 regarding basophil activation. Overall, the results showed the successful expression of an rAmb a 1.01 with comparable characteristics to the corresponding natural isoform. Our findings provide the basis for an improvement in ragweed allergy research, diagnosis, and immunotherapy.
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Affiliation(s)
- Maria-Roxana Buzan
- Center of Immuno-Physiology and Biotechnologies, Department of Functional Sciences, Victor Babes University of Medicine and Pharmacy, 300041 Timisoara, Romania; (M.-R.B.); (M.G.); (L.-E.Z.)
- OncoGen Center, Pius Brinzeu County Clinical Emergency Hospital, 300723 Timisoara, Romania;
| | - Manuela Grijincu
- Center of Immuno-Physiology and Biotechnologies, Department of Functional Sciences, Victor Babes University of Medicine and Pharmacy, 300041 Timisoara, Romania; (M.-R.B.); (M.G.); (L.-E.Z.)
- OncoGen Center, Pius Brinzeu County Clinical Emergency Hospital, 300723 Timisoara, Romania;
| | - Lauriana-Eunice Zbîrcea
- Center of Immuno-Physiology and Biotechnologies, Department of Functional Sciences, Victor Babes University of Medicine and Pharmacy, 300041 Timisoara, Romania; (M.-R.B.); (M.G.); (L.-E.Z.)
- OncoGen Center, Pius Brinzeu County Clinical Emergency Hospital, 300723 Timisoara, Romania;
| | - Laura Haidar
- Center of Immuno-Physiology and Biotechnologies, Department of Functional Sciences, Victor Babes University of Medicine and Pharmacy, 300041 Timisoara, Romania; (M.-R.B.); (M.G.); (L.-E.Z.)
| | - Tudor-Paul Tamaș
- Center of Immuno-Physiology and Biotechnologies, Department of Functional Sciences, Victor Babes University of Medicine and Pharmacy, 300041 Timisoara, Romania; (M.-R.B.); (M.G.); (L.-E.Z.)
| | - Monica-Daniela Cotarcă
- Center of Immuno-Physiology and Biotechnologies, Department of Functional Sciences, Victor Babes University of Medicine and Pharmacy, 300041 Timisoara, Romania; (M.-R.B.); (M.G.); (L.-E.Z.)
| | - Gabriela Tănasie
- Center of Immuno-Physiology and Biotechnologies, Department of Functional Sciences, Victor Babes University of Medicine and Pharmacy, 300041 Timisoara, Romania; (M.-R.B.); (M.G.); (L.-E.Z.)
- OncoGen Center, Pius Brinzeu County Clinical Emergency Hospital, 300723 Timisoara, Romania;
| | - Milena Weber
- Division of Immunopathology, Department of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, 1090 Vienna, Austria
| | - Elijahu Babaev
- Vienna Competence Center, Biomay AG, 1090 Vienna, Austria
| | - Frank Stolz
- Vienna Competence Center, Biomay AG, 1090 Vienna, Austria
| | - Rudolf Valenta
- Division of Immunopathology, Department of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, 1090 Vienna, Austria
- Laboratory for Immunopathology, Department of Clinical Immunology and Allergology, Sechenov First Moscow State Medical University, 119991 Moscow, Russia
- Karl Landsteiner University of Health Sciences, 3500 Krems, Austria
- NRC Institute of Immunology FMBA of Russia, 115478 Moscow, Russia
| | - Virgil Păunescu
- Center of Immuno-Physiology and Biotechnologies, Department of Functional Sciences, Victor Babes University of Medicine and Pharmacy, 300041 Timisoara, Romania; (M.-R.B.); (M.G.); (L.-E.Z.)
- OncoGen Center, Pius Brinzeu County Clinical Emergency Hospital, 300723 Timisoara, Romania;
| | - Carmen Panaitescu
- Center of Immuno-Physiology and Biotechnologies, Department of Functional Sciences, Victor Babes University of Medicine and Pharmacy, 300041 Timisoara, Romania; (M.-R.B.); (M.G.); (L.-E.Z.)
- OncoGen Center, Pius Brinzeu County Clinical Emergency Hospital, 300723 Timisoara, Romania;
| | - Kuan-Wei Chen
- OncoGen Center, Pius Brinzeu County Clinical Emergency Hospital, 300723 Timisoara, Romania;
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Bolzati C, Gobbi C, Ferro-Flores G, Turato S, Ocampo-Garcia B, Carpanese D, Marzano C, Spolaore B, Fracasso G, Rosato A, Meléndez-Alafort L. Development and Characterization of 99mTc-scFvD2B as a Potential Radiopharmaceutical for SPECT Imaging of Prostate Cancer. Int J Mol Sci 2023; 25:492. [PMID: 38203663 PMCID: PMC10779128 DOI: 10.3390/ijms25010492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 12/22/2023] [Accepted: 12/27/2023] [Indexed: 01/12/2024] Open
Abstract
Previously, we demonstrated that the 177Lu-labeled single-chain variable fragment of an anti-prostate-specific membrane antigen (PSMA) IgG D2B antibody (scFvD2B) showed higher prostate cancer (PCa) cell uptake and tumor radiation doses compared to 177Lu-labeled Glu-ureide-based PSMA inhibitory peptides. To obtain a 99mTc-/177Lu-scFvD2B theranostic pair, this research aimed to synthesize and biochemically characterize a novel 99mTc-scFvD2B radiotracer. The scFvD2B-Tag and scFvD2B antibody fragments were produced and purified. Then, two HYNIC derivatives, HYNIC-Gly-Gly-Cys-NH2 (HYNIC-GGC) and succinimidyl-HYNIC (S-HYNIC), were used to conjugate the scFvD2B-Tag and scFvD2B isoforms, respectively. Subsequently, chemical characterization, immunoreactivity tests (affinity and specificity), radiochemical purity tests, stability tests in human serum, cellular uptake and internalization in LNCaP(+), PC3-PIP(++) or PC3(-) PCa cells of the resulting unlabeled HYNIC-scFvD2B conjugates (HscFv) and 99mTc-HscFv agents were performed. The results showed that incorporating HYNIC as a chelator did not affect the affinity, specificity or stability of scFvD2B. After purification, the radiochemical purity of 99mTc-HscFv radiotracers was greater than 95%. A two-sample t-test of 99mTc-HscFv1 and 99mTc-HscFv1 uptake in PC3-PIP vs. PC3 showed a p-value < 0.001, indicating that the PSMA receptor interaction of 99mTc-HscFv agents was statistically significantly higher in PSMA-positive cells than in the negative controls. In conclusion, the results of this research warrant further preclinical studies to determine whether the in vivo pharmacokinetics and tumor uptake of 99mTc-HscFv still offer sufficient advantages over HYNIC-conjugated peptides to be considered for SPECT/PSMA imaging.
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Affiliation(s)
- Cristina Bolzati
- Institute of Condensed Matter Chemistry and Energy Technologies, Consiglio Nazionale delle Ricerche, Corso Stati Uniti 4, 35127 Padova, Italy; (C.B.); (C.G.)
| | - Carolina Gobbi
- Institute of Condensed Matter Chemistry and Energy Technologies, Consiglio Nazionale delle Ricerche, Corso Stati Uniti 4, 35127 Padova, Italy; (C.B.); (C.G.)
| | - Guillermina Ferro-Flores
- Laboratorio Nacional de Investigación y Desarrollo de Radiofármacos, Instituto Nacional de Investigaciones Nucleares, Carretera México-Toluca S/N. La Marquesa, Ocoyoacac 52750, Mexico; (G.F.-F.); (B.O.-G.)
| | - Sofia Turato
- Istituto Oncologico Veneto IOV-IRCCS, Via Gattamelata 64, 35138 Padova, Italy; (S.T.); (A.R.)
| | - Blanca Ocampo-Garcia
- Laboratorio Nacional de Investigación y Desarrollo de Radiofármacos, Instituto Nacional de Investigaciones Nucleares, Carretera México-Toluca S/N. La Marquesa, Ocoyoacac 52750, Mexico; (G.F.-F.); (B.O.-G.)
| | - Debora Carpanese
- Istituto Oncologico Veneto IOV-IRCCS, Via Gattamelata 64, 35138 Padova, Italy; (S.T.); (A.R.)
| | - Cristina Marzano
- Dipartimento di Scienze del Farmaco, Università degli Studi di Padova, Via Marzolo 5, 35131 Padova, Italy; (C.M.); (B.S.)
| | - Barbara Spolaore
- Dipartimento di Scienze del Farmaco, Università degli Studi di Padova, Via Marzolo 5, 35131 Padova, Italy; (C.M.); (B.S.)
| | - Giulio Fracasso
- Dipartimento di Scienze Biomediche, Università degli Studi di Padova, Viale G. Colombo 3, 35131 Padova, Italy
| | - Antonio Rosato
- Istituto Oncologico Veneto IOV-IRCCS, Via Gattamelata 64, 35138 Padova, Italy; (S.T.); (A.R.)
- Dipartimento di Scienze Chirurgiche Oncologiche e Gastroenterologiche, Università degli Studi di Padova, Via Gattamelata 64, 35138 Padova, Italy
| | - Laura Meléndez-Alafort
- Istituto Oncologico Veneto IOV-IRCCS, Via Gattamelata 64, 35138 Padova, Italy; (S.T.); (A.R.)
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6
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Gupta SK. Zona pellucida glycoproteins: Relevance in fertility and development of contraceptive vaccines. Am J Reprod Immunol 2023; 89:e13535. [PMID: 35249246 DOI: 10.1111/aji.13535] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2022] [Accepted: 03/02/2022] [Indexed: 02/01/2023] Open
Abstract
Mammalian zona pellucida (ZP) is composed of three to four glycoproteins, which plays an important role during fertilization. Mutations in the genes encoding zona proteins are reported in women with empty follicle syndrome, degenerated oocytes and those with an abnormal or no ZP further emphasizing their relevance during fertility. Immunization with either native or recombinant ZP glycoproteins/proteins leads to curtailment of fertility in various animal species. Observed infertility is frequently associated with ovarian pathology characterized by follicular atresia and degenerative changes in ZP, which may be due to oophoritogenic T cell epitope(s) within ZP glycoproteins. To avoid ovarian dystrophy, B cell epitopes of ZP glycoproteins have been mapped by using bio-effective monoclonal antibodies. Immunization with the immunogens encompassing the mapped B cell epitopes by and large led to amelioration of follicular atresia. However, their use for human application will require more rigorous research to establish their safety and reversibility of the contraceptive effect. Nonetheless, to minimize human-animal conflicts, ZP-based contraceptive vaccines have been used successfully in the population management of free-ranging animal species such as feral horses, white-tailed deer and elephants. To control zoonotic diseases, attempts are also underway to control the population of other animal species including stray dogs, which acts as one of the major vectors for the rabies virus.
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Affiliation(s)
- Satish K Gupta
- Basic Medical Sciences Division, Indian Council of Medical Research, New Delhi, India
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7
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The BDNF Val68Met polymorphism causes a sex specific alcohol preference over social interaction and also acute tolerance to the anxiolytic effects of alcohol, a phenotype driven by malfunction of BDNF in the ventral hippocampus of male mice. Psychopharmacology (Berl) 2023; 240:303-317. [PMID: 36622381 PMCID: PMC9879818 DOI: 10.1007/s00213-022-06305-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Accepted: 12/19/2022] [Indexed: 01/10/2023]
Abstract
BACKGROUND The brain-derived neurotrophic factor (BDNF) Valine 66 to Methionine human polymorphism results in impaired activity-dependent BDNF release and has been linked to psychiatric disorders including depression and anxiety. We previously showed that male knock-in mice carrying the mouse Methionine homolog (Met68BDNF) exhibit excessive and compulsive alcohol drinking behaviors as compared to the wild-type Val68BDNF mice. OBJECTIVE Here, we set out to determine the potential mechanism for the heightened and compulsive alcohol drinking phenotypes detected in Met68BDNF mice. RESULTS We found that male, but not female Met68BDNF mice exhibit social anxiety-like behaviors. We further show that male Met68BDNF mice exhibit a preference for alcohol over social interaction. In contrast, alcohol place preference without an alternative social reward, is similar in male Met68BDNF and Val68BDNF mice. Since the Met68BDNF mice show social anxiety phenotypes, we tested whether alcohol reliefs anxiety similarly in Met68BDNF and Val68BDNF mice and found that male, but not female Met68BDNF mice are insensitive to the acute anxiolytic action of alcohol. Finally, we show that this acute tolerance to alcohol-dependent anxiolysis can be restored by overexpressing wild-type Val68BDNF in the ventral hippocampus (vHC) of Met68BDNF mice. CONCLUSIONS Together, our results suggest that excessive alcohol drinking in the Met68BDNF may be attributed, in part, to heighted social anxiety and a lack of alcohol-dependent anxiolysis, a phenotype that is associated with malfunction of BDNF signaling in the vHC of male Met68BDNF mice.
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8
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Romero-Giraldo LE, Pulido S, Berrío MA, Flórez MF, Rey-Suárez P, Nuñez V, Pereañez JA. Heterologous Expression and Immunogenic Potential of the Most Abundant Phospholipase A 2 from Coral Snake Micrurus dumerilii to Develop Antivenoms. Toxins (Basel) 2022; 14:toxins14120825. [PMID: 36548722 PMCID: PMC9788014 DOI: 10.3390/toxins14120825] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 11/08/2022] [Accepted: 11/17/2022] [Indexed: 11/25/2022] Open
Abstract
Micrurus dumerilii is a coral snake of clinic interest in Colombia. Its venom is mainly composed of phospholipases A2 being MdumPLA2 the most abundant protein. Nevertheless, Micrurus species produce a low quantity of venom, which makes it difficult to produce anticoral antivenoms. Therefore, in this work, we present the recombinant expression of MdumPLA2 to evaluate its biological activities and its immunogenic potential to produce antivenoms. For this, a genetic construct rMdumPLA2 was cloned into the pET28a vector and expressed heterologously in bacteria. His-rMdumPLA2 was extracted from inclusion bodies, refolded in vitro, and isolated using affinity and RP-HPLC chromatography. His-rMdumPLA2 was shown to have phospholipase A2 activity, a weak anticoagulant effect, and induced myonecrosis and edema. The anti-His-rMdumPLA2 antibodies produced in rabbits recognized native PLA2, the complete venom of M. dumerilii, and a phospholipase from another species of the Micrurus genus. Antibodies neutralized 100% of the in vitro phospholipase activity of the recombinant toxin and a moderate percentage of the myotoxic activity of M. dumerilii venom in mice. These results indicate that His-rMdumPLA2 could be used as an immunogen to improve anticoral antivenoms development. This work is the first report of an M. dumerilii functional recombinant PLA2.
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Affiliation(s)
- Luz E. Romero-Giraldo
- Research Group in Toxinology, Pharmaceutical, and Food Alternatives, Pharmaceutical and Food Sciences Faculty, University of Antioquia, Medellín 50010, Colombia
| | - Sergio Pulido
- Tropical Disease Study and Control Program—PECET, University of Antioquia, Medellín 50010, Colombia
- LifeFactors Zona Franca SAS, Rionegro 54047, Colombia
| | - Mario A. Berrío
- Tropical Disease Study and Control Program—PECET, University of Antioquia, Medellín 50010, Colombia
| | - María F. Flórez
- Tropical Disease Study and Control Program—PECET, University of Antioquia, Medellín 50010, Colombia
| | - Paola Rey-Suárez
- Research Group in Toxinology, Pharmaceutical, and Food Alternatives, Pharmaceutical and Food Sciences Faculty, University of Antioquia, Medellín 50010, Colombia
- Centro de Investigación en Recursos Naturales y Sustentabilidad, Universidad Bernardo O’Higgins, Santiago 8320000, Chile
| | - Vitelbina Nuñez
- Research Group in Toxinology, Pharmaceutical, and Food Alternatives, Pharmaceutical and Food Sciences Faculty, University of Antioquia, Medellín 50010, Colombia
- Microbiology School, University of Antioquia, Medellín 50010, Colombia
| | - Jaime A. Pereañez
- Research Group in Toxinology, Pharmaceutical, and Food Alternatives, Pharmaceutical and Food Sciences Faculty, University of Antioquia, Medellín 50010, Colombia
- Correspondence:
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Schilz J, Clement C, Greiner F, Skerra A. Direct Affinity Purification of Long‐Acting PASylated Proteins with Therapeutic Potential Using L‐Prolinamide for Mild Elution. Angew Chem Int Ed Engl 2022; 61:e202200079. [PMID: 35325504 PMCID: PMC9320812 DOI: 10.1002/anie.202200079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Indexed: 11/09/2022]
Affiliation(s)
- Jonas Schilz
- Lehrstuhl für Biologische Chemie Technische Universität München Emil-Erlenmeyer-Forum 5 85354 Freising (Weihenstephan) Germany
| | - Charlotte Clement
- Lehrstuhl für Biologische Chemie Technische Universität München Emil-Erlenmeyer-Forum 5 85354 Freising (Weihenstephan) Germany
| | - Franziska Greiner
- Lehrstuhl für Biologische Chemie Technische Universität München Emil-Erlenmeyer-Forum 5 85354 Freising (Weihenstephan) Germany
| | - Arne Skerra
- Lehrstuhl für Biologische Chemie Technische Universität München Emil-Erlenmeyer-Forum 5 85354 Freising (Weihenstephan) Germany
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10
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Schilz J, Clement C, Greiner F, Skerra A. Direct Affinity Purification of Long‐Acting PASylated Proteins with Therapeutic Potential Using L‐Prolinamide for Mild Elution. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202200079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Jonas Schilz
- TUM: Technische Universitat Munchen Biological Chemistry GERMANY
| | | | | | - Arne Skerra
- Technische Universität München Lehrstuhl für Biologische Chemie Emil-Erlenmeyer-Forum 5 85354 Freising GERMANY
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11
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Coiled coil exposure and histidine tags drive function of an intracellular protein drug carrier. J Control Release 2021; 339:248-258. [PMID: 34563592 DOI: 10.1016/j.jconrel.2021.09.026] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Revised: 09/09/2021] [Accepted: 09/20/2021] [Indexed: 01/05/2023]
Abstract
In recent years, protein engineering efforts have yielded a diverse set of binding proteins that hold promise for various therapeutic applications. Despite this, their inability to reach intracellular targets limits their applications to cell surface or soluble targets. To address this challenge, we previously reported a protein carrier that binds antibodies and delivers them to therapeutic targets inside cancer cells. This carrier, known as the Hex carrier, is comprised of a self-assembling coiled coil hexamer at the core, with each alpha helix fused to a linker, an antibody binding domain, and a six Histidine-tag (His-tag). In this work, we designed different versions of the carrier to determine the role of each building block in cytosolic protein delivery. We found that increasing exposure of the Hex coiled coil on the carriers, through molecular design or removing antibodies, increased internalization, pointing to a role of the coiled coil in promoting endocytosis. We observed a clear increase in endosomal disruption events when His-tags were present on the carrier relative to when they were removed, due to an endosomal buffering effect. Finally, we found that the antibody binding domains of the Hex carrier could be replaced with monomeric ultra-stable GFP for intracellular delivery and endosomal escape. Our results demonstrate that the Hex coiled coil, in conjunction with His-tags, could be a generalizable vehicle for delivering small and large proteins to intracellular targets. This work also highlights new biological applications for oligomeric coiled coils and shows the direct and quantifiable impact of histidine residues on endosomal disruption. These findings could inform the design of future drug delivery vehicles in applications beyond intracellular protein delivery.
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12
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Hasan MM, Ushio H, Ochiai Y. Expression and characterization of rainbow trout Oncorhynchus mykiss recombinant myoglobin. FISH PHYSIOLOGY AND BIOCHEMISTRY 2021; 47:1477-1488. [PMID: 34327612 DOI: 10.1007/s10695-021-00991-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Accepted: 07/14/2021] [Indexed: 06/13/2023]
Abstract
Recombinant expression system was established for rainbow trout myoglobin (Mb) considering its unique primary structure of having one unusual deletion and two cysteine residues in contrast to the other fish Mbs. The obtained recombinant Mb without His-tag showed non-cooperative thermal denaturation profile. The presence of free cysteine residue(s) in rainbow trout Mb was demonstrated by reacting with a sulfhydryl agent, 4, 4´-dithiodipyridine, which ultimately resulted in the oxidation of Mb with characteristic changes in visible absorption spectra. Besides, the recombinant Mb displayed steady peroxidase reactivity indicating in vivo roles of Mb as a reactive oxygen species scavenger. The findings of the present study indicate that the solitary rainbow trout Mb, which ultimately manifest typical secondary structure pattern and corroborate characteristic functionality, can be over expressed in recombinant system devoid of fusion tag.
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Affiliation(s)
- Muhammad Mehedi Hasan
- Laboratory of Marine Biochemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo, Tokyo, 113-8657, Japan.
- Department of Fisheries Technology, Bangladesh Agricultural University, Mymensingh, 2202, Bangladesh.
| | - Hideki Ushio
- Laboratory of Marine Biochemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo, Tokyo, 113-8657, Japan
| | - Yoshihiro Ochiai
- Graduate School of Agriculture, Tohoku University, Aramaki, Aoba, Sendai, 980-8572, Japan
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13
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Roghanian P, Zare Karizi S, Motamedi MJ, Kazemi R, Khoobbakht D, Amani J. Designing and determining immunogenicity of a recombinant protein due to producing a new vaccine against Enterotoxigenic Escherichia coli containing CfaE and CotD subunits. J Immunoassay Immunochem 2021; 42:525-542. [PMID: 33834940 DOI: 10.1080/15321819.2021.1906890] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Enterotoxigenic Escherichia coli (ETEC) is one of the most common bacterial causes of mortalities in developing countries due to diarrhea. Since mucosal immune responses to CFs can prevent the disease, a chimeric protein containing ETEC's CFA/I (CfaE) tip subunits and CS2 (CotD) sub-structural units is developed to produce effective vaccine. Using bioinformatics tools, the chimeric construct was analyzed and then the optimized gene was synthesized and expressed in E. coli. The recombinant protein was expressed and purified by the Ni-NTA chromatography column and confirmed by anti-his tag antibody by western blotting. Mice were immunized with recombinant protein, and the IgG and IgA antibodies' titrations of the sera were analyzed by ELISA. In addition, the immunogenicity and protective efficacy against the live ETEC bacteria in the challenge test were determined. Western blot analysis verified the chimeric protein expression of CotD-CfaE. The outcome of ELISA was a substantial improvement in the IgG antibody titer in immunized mice. In a live ETEC challenge, the survival percentage of 30% was shown for immunized mice. The developed recombinant chimeric protein could be suggested as an effective component in producing an efficient vaccine against Enterotoxigenic E. coli with other crucial subunits, different immunization route, and other factors.
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Affiliation(s)
- Pooneh Roghanian
- Department of Genetics, Islamic Azad University, Science and Research Branch, Tehran, Iran
| | - Shohreh Zare Karizi
- Department of Genetics and Biotechnology, School of Biological Science, Varamin-Pishva, Branch Islamic Azad University, Varamin, Iran
| | | | | | - Dorna Khoobbakht
- Department of Genetics, Islamic Azad University, Science and Research Branch, Tehran, Iran
| | - Jafar Amani
- Applied Microbiology Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
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14
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Küppers J, Kürpig S, Bundschuh RA, Essler M, Lütje S. Radiolabeling Strategies of Nanobodies for Imaging Applications. Diagnostics (Basel) 2021; 11:1530. [PMID: 34573872 PMCID: PMC8471529 DOI: 10.3390/diagnostics11091530] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 07/30/2021] [Accepted: 08/20/2021] [Indexed: 02/06/2023] Open
Abstract
Nanobodies are small recombinant antigen-binding fragments derived from camelid heavy-chain only antibodies. Due to their compact structure, pharmacokinetics of nanobodies are favorable compared to full-size antibodies, allowing rapid accumulation to their targets after intravenous administration, while unbound molecules are quickly cleared from the circulation. In consequence, high signal-to-background ratios can be achieved, rendering radiolabeled nanobodies high-potential candidates for imaging applications in oncology, immunology and specific diseases, for instance in the cardiovascular system. In this review, a comprehensive overview of central aspects of nanobody functionalization and radiolabeling strategies is provided.
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Affiliation(s)
- Jim Küppers
- Department of Nuclear Medicine, University Hospital Bonn, 53127 Bonn, Germany; (S.K.); (R.A.B.); (M.E.); (S.L.)
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15
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López-Laguna H, Voltà-Durán E, Parladé E, Villaverde A, Vázquez E, Unzueta U. Insights on the emerging biotechnology of histidine-rich peptides. Biotechnol Adv 2021; 54:107817. [PMID: 34418503 DOI: 10.1016/j.biotechadv.2021.107817] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2021] [Revised: 07/16/2021] [Accepted: 08/16/2021] [Indexed: 02/07/2023]
Abstract
In the late 70's, the discovery of the restriction enzymes made possible the biological production of functional proteins by recombinant DNA technologies, a fact that largely empowered both biotechnological and pharmaceutical industries. Short peptides or small protein domains, with specific molecular affinities, were developed as purification tags in downstream processes to separate the target protein from the culture media or cell debris, upon breaking the producing cells. Among these tags, and by exploiting the interactivity of the imidazole ring of histidine residues, the hexahistidine peptide (H6) became a gold standard. Although initially used almost exclusively in protein production, H6 and related His-rich peptides are progressively proving a broad applicability in novel utilities including enzymatic processes, advanced drug delivery systems and diagnosis, through a so far unsuspected adaptation of their binding capabilities. In this context, the coordination of histidine residues and metals confers intriguing functionalities to His-rich sequences useable in the forward-thinking design of protein-based nano- and micro-materials and devices, through strategies that are comprehensively presented here.
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Affiliation(s)
- Hèctor López-Laguna
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, Bellaterra, 08193 Barcelona, Spain; Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, Bellaterra, 08193 Barcelona, Spain; CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Spain
| | - Eric Voltà-Durán
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, Bellaterra, 08193 Barcelona, Spain; Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, Bellaterra, 08193 Barcelona, Spain; CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Spain
| | - Eloi Parladé
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, Bellaterra, 08193 Barcelona, Spain; Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, Bellaterra, 08193 Barcelona, Spain; CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Spain
| | - Antonio Villaverde
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, Bellaterra, 08193 Barcelona, Spain; Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, Bellaterra, 08193 Barcelona, Spain; CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Spain.
| | - Esther Vázquez
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, Bellaterra, 08193 Barcelona, Spain; Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, Bellaterra, 08193 Barcelona, Spain; CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Spain.
| | - Ugutz Unzueta
- Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, Bellaterra, 08193 Barcelona, Spain; CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Spain; Biomedical Research Institute Sant Pau (IIB Sant Pau), Sant Antoni Mª Claret 167, 08025 Barcelona, Spain.
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16
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Wätzig H, Hoffstedt M, Krebs F, Minkner R, Scheller C, Zagst H. Protein analysis and stability: Overcoming trial-and-error by grouping according to physicochemical properties. J Chromatogr A 2021; 1649:462234. [PMID: 34038775 DOI: 10.1016/j.chroma.2021.462234] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 04/27/2021] [Accepted: 04/28/2021] [Indexed: 12/15/2022]
Abstract
Today proteins are possibly the most important class of substances. Yet new tasks for proteins are still often solved by trial-and-error approaches. However, in some areas these euphemistically called "screening approaches" are not suitable. E.g. stability tests just take too long and therefore require a more strategic, target-orientated concept. This concept is available by grouping proteins according to their physicochemical properties and then pulling out the right drawer for new tasks. These properties include size, then charge and hydrophobicity as well as their patchinesses, and the degree of order. In addition, solubility, the content of (free) enthalpy, aromatic-amino-acid- and α/β-frequency as well as helix capping, and corresponding patchiness, the number of specific motifs and domains as well as the typical concentration range can be helpful to discriminate between different groups of proteins. Analyzing correlations will reduce the necessary amount of parameters and additional ones, which may be still undiscovered at the present time, can be identified looking at protein subgroups with similar physicochemical properties which still behave heterogeneously. Step-by-step the methodology will be improved. Possibly protein stability will be the driver of this process, but all other areas such as production, purification and analytics including sample pre-treatment and the choice of appropriate separation conditions for e.g. chromatography and electrophoresis will profit from a rational strategy.
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Affiliation(s)
- Hermann Wätzig
- Technische Universität Braunschweig, Institute of Medicinal and Pharmaceutical Chemistry, Beethovenstraße 55, Braunschweig 38106, Germany.
| | - Marc Hoffstedt
- Technische Universität Braunschweig, Institute of Medicinal and Pharmaceutical Chemistry, Beethovenstraße 55, Braunschweig 38106, Germany
| | - Finja Krebs
- Technische Universität Braunschweig, Institute of Medicinal and Pharmaceutical Chemistry, Beethovenstraße 55, Braunschweig 38106, Germany
| | - Robert Minkner
- Technische Universität Braunschweig, Institute of Medicinal and Pharmaceutical Chemistry, Beethovenstraße 55, Braunschweig 38106, Germany
| | - Christin Scheller
- Technische Universität Braunschweig, Institute of Medicinal and Pharmaceutical Chemistry, Beethovenstraße 55, Braunschweig 38106, Germany
| | - Holger Zagst
- Technische Universität Braunschweig, Institute of Medicinal and Pharmaceutical Chemistry, Beethovenstraße 55, Braunschweig 38106, Germany
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17
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Crowell LE, Goodwine C, Holt CS, Rocha L, Vega C, Rodriguez SA, Dalvie NC, Tracey MK, Puntel M, Wigdorovitz A, Parreño V, Love KR, Cramer SM, Love JC. Development of a platform process for the production and purification of single-domain antibodies. Biotechnol Bioeng 2021; 118:3348-3358. [PMID: 33624832 PMCID: PMC8451865 DOI: 10.1002/bit.27724] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Revised: 01/15/2021] [Accepted: 02/19/2021] [Indexed: 01/14/2023]
Abstract
Single‐domain antibodies (sdAbs) offer the affinity and therapeutic value of conventional antibodies, with increased stability and solubility. Unlike conventional antibodies, however, sdAbs do not benefit from a platform manufacturing process. While successful production of a variety of sdAbs has been shown in numerous hosts, purification methods are often molecule specific or require affinity tags, which generally cannot be used in clinical manufacturing due to regulatory concerns. Here, we have developed a broadly applicable production and purification process for sdAbs in Komagataella phaffii (Pichia pastoris) and demonstrated the production of eight different sdAbs at a quality appropriate for nonclinical studies. We developed a two‐step, integrated purification process without the use of affinity resins and showed that modification of a single process parameter, pH of the bridging buffer, was required for the successful purification of a variety of sdAbs. Further, we determined that this parameter can be predicted based only on the biophysical characteristics of the target molecule. Using these methods, we produced nonclinical quality sdAbs as few as 5 weeks after identifying the product sequence. Nonclinical studies of three different sdAbs showed that molecules produced using our platform process conferred protection against viral shedding of rotavirus or H1N1 influenza and were equivalent to similar molecules produced in Escherichia coli and purified using affinity tags.
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Affiliation(s)
- Laura E Crowell
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA.,Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
| | - Chaz Goodwine
- Department of Chemical and Biological Engineering, Rensselaer Polytechnic Institute, Troy, New York, USA.,Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, New York, USA
| | - Carla S Holt
- Instituto de Virología, Investigación en Ciencias Veterinarias y Agronómicas, Instituto Nacional de Tecnología Agropecuaria, Buenos Aires, Argentina
| | - Lucia Rocha
- Instituto de Virología, Investigación en Ciencias Veterinarias y Agronómicas, Instituto Nacional de Tecnología Agropecuaria, Buenos Aires, Argentina
| | - Celina Vega
- Instituto de Virología, Investigación en Ciencias Veterinarias y Agronómicas, Instituto Nacional de Tecnología Agropecuaria, Buenos Aires, Argentina
| | - Sergio A Rodriguez
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA.,Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
| | - Neil C Dalvie
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA.,Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
| | - Mary K Tracey
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
| | - Mariana Puntel
- Instituto de Virología, Investigación en Ciencias Veterinarias y Agronómicas, Instituto Nacional de Tecnología Agropecuaria, Buenos Aires, Argentina
| | - Andrés Wigdorovitz
- Instituto de Virología, Investigación en Ciencias Veterinarias y Agronómicas, Instituto Nacional de Tecnología Agropecuaria, Buenos Aires, Argentina
| | - Viviana Parreño
- Instituto de Virología, Investigación en Ciencias Veterinarias y Agronómicas, Instituto Nacional de Tecnología Agropecuaria, Buenos Aires, Argentina
| | - Kerry R Love
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
| | - Steven M Cramer
- Department of Chemical and Biological Engineering, Rensselaer Polytechnic Institute, Troy, New York, USA.,Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, New York, USA
| | - J Christopher Love
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA.,Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
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18
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Chen YL, Huang CT. Establishment of a two-step purification scheme for tag-free recombinant Taiwan native norovirus P and VP1 proteins. J Chromatogr B Analyt Technol Biomed Life Sci 2020; 1159:122357. [PMID: 32920339 DOI: 10.1016/j.jchromb.2020.122357] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 08/24/2020] [Accepted: 08/29/2020] [Indexed: 12/17/2022]
Abstract
The protruding (P) domain of the major capsid protein VP1 of norovirus (NoV) is the crucial element for immune recognition and host receptor binding. The heterologous P protein expressed by Pichia pastoris self-assembles into P particles. However, tag-free NoV protein purification schemes have rarely been reported due to the low isoelectric point of NoV proteins, which leads to highly competitive binding between the target protein and yeast host cell proteins at alkaline pH. In this study, a two-step purification scheme based on surface histidines and the charge on the NoV GII.4 strain P protein was developed. Using HisTrap and ion exchange chromatography, the P protein was directly purified, with a recovery of 28.1% and purity of 82.1%. Similarly, the NoV capsid protein VP1 was also purified using HisTrap and gel filtration chromatography based on native surface histidines and self-assembly ability, with 20% recovery and over 90% purity. Dynamic light scattering and transmission electron microscopy analyses of the purified NoV P revealed that most of these small P particles were triangle-, square- and ring-shaped, with a diameter of approximately 14 nm, and that the purified NoV VP1 self-assembles into particles with a diameter of approximately 47 nm. Both the purified NoV P and VP1 particles retained human histo-blood group antigen-binding ability, as evidenced by a saliva-binding assay.
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Affiliation(s)
- Yu-Ling Chen
- Department of Biochemical Science and Technology, National Taiwan University, Taiwan
| | - Ching-Tsan Huang
- Department of Biochemical Science and Technology, National Taiwan University, Taiwan.
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19
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Effect of N-terminal poly histidine-tag on immunogenicity of Streptococcus pneumoniae surface protein SP0845. Int J Biol Macromol 2020; 163:1240-1248. [DOI: 10.1016/j.ijbiomac.2020.07.056] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2020] [Revised: 07/04/2020] [Accepted: 07/06/2020] [Indexed: 12/29/2022]
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20
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Öhlknecht C, Petrov D, Engele P, Kröß C, Sprenger B, Fischer A, Lingg N, Schneider R, Oostenbrink C. Enhancing the promiscuity of a member of the Caspase protease family by rational design. Proteins 2020; 88:1303-1318. [PMID: 32432825 PMCID: PMC7497161 DOI: 10.1002/prot.25950] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Revised: 03/19/2020] [Accepted: 04/29/2020] [Indexed: 12/12/2022]
Abstract
The N-terminal cleavage of fusion tags to restore the native N-terminus of recombinant proteins is a challenging task and up to today, protocols need to be optimized for different proteins individually. Within this work, we present a novel protease that was designed in-silico to yield enhanced promiscuity toward different N-terminal amino acids. Two mutations in the active-site amino acids of human Caspase-2 were determined to increase the recognition of branched amino-acids, which show only poor binding capabilities in the unmutated protease. These mutations were determined by sequential and structural comparisons of Caspase-2 and Caspase-3 and their effect was additionally predicted using free-energy calculations. The two mutants proposed in the in-silico studies were expressed and in-vitro experiments confirmed the simulation results. Both mutants showed not only enhanced activities toward branched amino acids, but also smaller, unbranched amino acids. We believe that the created mutants constitute an important step toward generalized procedures to restore original N-termini of recombinant fusion proteins.
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Affiliation(s)
- Christoph Öhlknecht
- Institute of Molecular Modeling and SimulationUniversity of Natural Resources and Life SciencesViennaAustria
- Austrian Centre of Industrial BiotechnologyViennaAustria
| | - Drazen Petrov
- Institute of Molecular Modeling and SimulationUniversity of Natural Resources and Life SciencesViennaAustria
| | - Petra Engele
- Institute of Biochemistry and Center of Molecular Biosciences InnsbruckUniversity of InnsbruckInnsbruckAustria
- Austrian Centre of Industrial BiotechnologyViennaAustria
| | - Christina Kröß
- Institute of Biochemistry and Center of Molecular Biosciences InnsbruckUniversity of InnsbruckInnsbruckAustria
- Austrian Centre of Industrial BiotechnologyViennaAustria
| | - Bernhard Sprenger
- Institute of Biochemistry and Center of Molecular Biosciences InnsbruckUniversity of InnsbruckInnsbruckAustria
- Austrian Centre of Industrial BiotechnologyViennaAustria
| | | | - Nico Lingg
- Austrian Centre of Industrial BiotechnologyViennaAustria
| | - Rainer Schneider
- Institute of Biochemistry and Center of Molecular Biosciences InnsbruckUniversity of InnsbruckInnsbruckAustria
| | - Chris Oostenbrink
- Institute of Molecular Modeling and SimulationUniversity of Natural Resources and Life SciencesViennaAustria
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21
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A systematic and methodical approach for the efficient purification of recombinant protein from silkworm larval hemolymph. J Chromatogr B Analyt Technol Biomed Life Sci 2020; 1138:121964. [DOI: 10.1016/j.jchromb.2019.121964] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Revised: 12/25/2019] [Accepted: 12/30/2019] [Indexed: 01/16/2023]
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22
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Dagnino-Leone J, Figueroa M, Uribe E, Hinrichs MV, Ortiz-López D, Martínez-Oyanedel J, Bunster M. Biosynthesis and characterization of a recombinant eukaryotic allophycocyanin using prokaryotic accessory enzymes. Microbiologyopen 2020; 9:e989. [PMID: 31970933 PMCID: PMC7066465 DOI: 10.1002/mbo3.989] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Revised: 12/18/2019] [Accepted: 12/18/2019] [Indexed: 12/03/2022] Open
Abstract
Phycobiliproteins (PBPs) are colored fluorescent proteins present in cyanobacteria, red alga, and cryptophyta. These proteins have many potential uses in biotechnology going from food colorants to medical applications. Allophycocyanin, the simplest PBP, is a heterodimer of αβ subunits that oligomerizes as a trimer (αβ)3. Each subunit contains a phycocyanobilin, bound to a cysteine residue, which is responsible for its spectroscopic properties. In this article, we are reporting the expression of recombinant allophycocyanin (rAPC) from the eukaryotic red algae Agarophyton chilensis in Escherichia coli, using prokaryotic accessory enzymes to obtain a fully functional rAPC. Three duet vectors were used to include coding sequences of α and β subunits from A. chilensis and accessorial enzymes (heterodimeric lyase cpc S/U, heme oxygenase 1, phycocyanobilin oxidoreductase) from cyanobacteria Arthrospira maxima. rAPC was purified using several chromatographic steps. The characterization of the pure rAPC indicates very similar spectroscopic properties, λmaxAbs, λmaxEm, fluorescence lifetime, and chromophorylation degree, with native allophycocyanin (nAPC) from A. chilensis. This method, to produce high‐quality recombinant allophycocyanin, can be used to express and characterize other macroalga phycobiliproteins, to be used for biotechnological or biomedical purposes.
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Affiliation(s)
- Jorge Dagnino-Leone
- Departamento de Bioquímica y Biología Molecular, Universidad de Concepción, Concepción, Chile
| | - Maximiliano Figueroa
- Departamento de Bioquímica y Biología Molecular, Universidad de Concepción, Concepción, Chile
| | - Elena Uribe
- Departamento de Bioquímica y Biología Molecular, Universidad de Concepción, Concepción, Chile
| | - María Victoria Hinrichs
- Departamento de Bioquímica y Biología Molecular, Universidad de Concepción, Concepción, Chile
| | - Diego Ortiz-López
- Departamento de Bioquímica y Biología Molecular, Universidad de Concepción, Concepción, Chile
| | - José Martínez-Oyanedel
- Departamento de Bioquímica y Biología Molecular, Universidad de Concepción, Concepción, Chile
| | - Marta Bunster
- Departamento de Bioquímica y Biología Molecular, Universidad de Concepción, Concepción, Chile
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Tusé D, Nandi S, McDonald KA, Buyel JF. The Emergency Response Capacity of Plant-Based Biopharmaceutical Manufacturing-What It Is and What It Could Be. FRONTIERS IN PLANT SCIENCE 2020; 11:594019. [PMID: 33193552 PMCID: PMC7606873 DOI: 10.3389/fpls.2020.594019] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Accepted: 09/24/2020] [Indexed: 05/12/2023]
Abstract
Several epidemic and pandemic diseases have emerged over the last 20 years with increasing reach and severity. The current COVID-19 pandemic has affected most of the world's population, causing millions of infections, hundreds of thousands of deaths, and economic disruption on a vast scale. The increasing number of casualties underlines an urgent need for the rapid delivery of therapeutics, prophylactics such as vaccines, and diagnostic reagents. Here, we review the potential of molecular farming in plants from a manufacturing perspective, focusing on the speed, capacity, safety, and potential costs of transient expression systems. We highlight current limitations in terms of the regulatory framework, as well as future opportunities to establish plant molecular farming as a global, de-centralized emergency response platform for the rapid production of biopharmaceuticals. The implications of public health emergencies on process design and costs, regulatory approval, and production speed and scale compared to conventional manufacturing platforms based on mammalian cell culture are discussed as a forward-looking strategy for future pandemic responses.
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Affiliation(s)
- Daniel Tusé
- DT/Consulting Group and GROW Biomedicine, LLC, Sacramento, CA, United States
| | - Somen Nandi
- Department of Chemical Engineering, University of California, Davis, Davis, CA, United States
- Global HealthShare Initiative, University of California, Davis, Davis, CA, United States
| | - Karen A. McDonald
- Department of Chemical Engineering, University of California, Davis, Davis, CA, United States
- Global HealthShare Initiative, University of California, Davis, Davis, CA, United States
| | - Johannes Felix Buyel
- Fraunhofer Institute for Molecular Biology and Applied Ecology IME, Aachen, Germany
- Institute for Molecular Biotechnology, RWTH Aachen University, Aachen, Germany
- *Correspondence: Johannes Felix Buyel, ; orcid.org/0000-0003-2361-143X
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Punde N, Kooken J, Leary D, Legler PM, Angov E. Codon harmonization reduces amino acid misincorporation in bacterially expressed P. falciparum proteins and improves their immunogenicity. AMB Express 2019; 9:167. [PMID: 31630257 PMCID: PMC6800875 DOI: 10.1186/s13568-019-0890-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Accepted: 10/01/2019] [Indexed: 11/25/2022] Open
Abstract
Codon usage frequency influences protein structure and function. The frequency with which codons are used potentially impacts primary, secondary and tertiary protein structure. Poor expression, loss of function, insolubility, or truncation can result from species-specific differences in codon usage. “Codon harmonization” more closely aligns native codon usage frequencies with those of the expression host particularly within putative inter-domain segments where slower rates of translation may play a role in protein folding. Heterologous expression of Plasmodium falciparum genes in Escherichia coli has been a challenge due to their AT-rich codon bias and the highly repetitive DNA sequences. Here, codon harmonization was applied to the malarial antigen, CelTOS (Cell-traversal protein for ookinetes and sporozoites). CelTOS is a highly conserved P. falciparum protein involved in cellular traversal through mosquito and vertebrate host cells. It reversibly refolds after thermal denaturation making it a desirable malarial vaccine candidate. Protein expressed in E. coli from a codon harmonized sequence of P. falciparum CelTOS (CH-PfCelTOS) was compared with protein expressed from the native codon sequence (N-PfCelTOS) to assess the impact of codon usage on protein expression levels, solubility, yield, stability, structural integrity, recognition with CelTOS-specific mAbs and immunogenicity in mice. While the translated proteins were expected to be identical, the translated products produced from the codon-harmonized sequence differed in helical content and showed a smaller distribution of polypeptides in mass spectra indicating lower heterogeneity of the codon harmonized version and fewer amino acid misincorporations. Substitutions of hydrophobic-to-hydrophobic amino acid were observed more commonly than any other. CH-PfCelTOS induced significantly higher antibody levels compared with N-PfCelTOS; however, no significant differences in either IFN-γ or IL-4 cellular responses were detected between the two antigens.
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Pan W, Wang Y, Wang N. A new metal affinity NCTR 25 tag as a better alternative to the His-tag for the expression of recombinant fused proteins. Protein Expr Purif 2019; 164:105477. [PMID: 31419547 DOI: 10.1016/j.pep.2019.105477] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2019] [Revised: 07/20/2019] [Accepted: 08/11/2019] [Indexed: 12/18/2022]
Abstract
His-tagging is commonly used in fusion protein production, but the His-tag is usually prohibited in medicinal proteins and must be removed. A fragment (NCTR25-tag) truncated from the N-terminus of human copper transporter 1 was tested for feasibility as a replacement for the His-tag in fusion proteins. The NCTR25-tag and His-tag were separately fused to the transthyretin (TTR) protein, and the expression, affinity purification, refolding and stability of the two kinds of fusions were compared. NCTR25 fusion produced a 63% higher yield of the recombinant protein, which was purified by metal affinity chromatography with an efficiency similar to that of His-tagged protein. NCTR25-tag fusion had much less impact on the foldability, kinetic and thermodynamic stability of tetrameric TTR than His-tag fusion. When the tags were individually fused to enhanced green fluorescent protein (EGFP), NCTR25 fusion yielded 29-128% more product than His-EGFP. NCTR25-EGFP could be purified by metal affinity chromatography and showed better foldability than His-EGFP. Furthermore, tumor necrosis factor (TNF)-related apoptosis-inducing ligand (TRAIL) fusion with the third disulfide loop of TGF-α (TGF3L-TRAIL) fused with the NCTR25-tag retained the stability and superactivity of His-TGF3L-TRAIL. Therefore, the native tag NCTR25-tag is a feasible alternative to the His-tag in medicinal recombinant proteins.
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Affiliation(s)
- Weitong Pan
- Beijing Key Laboratory of New Drug Mechanisms and Pharmacological Evaluation Study, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China
| | - Yan Wang
- Beijing Key Laboratory of New Drug Mechanisms and Pharmacological Evaluation Study, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China.
| | - Nan Wang
- Beijing Key Laboratory of New Drug Mechanisms and Pharmacological Evaluation Study, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China.
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Gudbergsson JM, Jønsson K, Simonsen JB, Johnsen KB. Systematic review of targeted extracellular vesicles for drug delivery – Considerations on methodological and biological heterogeneity. J Control Release 2019; 306:108-120. [DOI: 10.1016/j.jconrel.2019.06.006] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Revised: 06/03/2019] [Accepted: 06/03/2019] [Indexed: 12/20/2022]
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27
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Qi X, Lu Q, Hu J, Xiong S. Spontaneous C-cleavage of a truncated intein as fusion tag to produce tag-free VP1 inclusion body nanoparticle vaccine against CVB3-induced viral myocarditis by the oral route. Microb Cell Fact 2019; 18:66. [PMID: 30947747 PMCID: PMC6449988 DOI: 10.1186/s12934-019-1115-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Accepted: 03/28/2019] [Indexed: 12/14/2022] Open
Abstract
Background Oral vaccine is highly desired for infectious disease which is caused by pathogens infection through the mucosal surface. The design of suitable vaccine delivery system is ongoing for the antigen protection from the harsh gastric environment and target to the Peyer’s patches to induce sufficient mucosal immune responses. Among various potential delivery systems, bacterial inclusion bodies have been widely used as delivery systems in the field of nanobiomedicine. However, a large number of heterologous complex proteins could be difficult to propagate in E. coli and fusion partners are often used to enhance target protein expression. As a safety concern the fusion protein need to be removed from the target protein to get tag-free protein, especially for the production of protein antigen in vaccinology. Until now, there is no report on how to remove fusion tag from inclusion body particles in vitro and in vivo. Coxsackievirus B3 (CVB3) is a leading causative agent of viral myocarditis and orally protein vaccine is high desired for CVB3-induced myocarditis. In this context, we explored a tag-free VP1 inclusion body nanoparticles production protocol though a truncated Ssp DnaX mini-intein spontaneous C-cleavage in vivo and also exploited the VP1 inclusion bodies as an oral protein nanoparticle vaccine to protect mice against CVB3-induced myocarditis. Results We successfully produced the tag-free VP1 inclusion body nanoparticle antigen of CVB3 and orally administrated to mice. The results showed that the tag-free VP1 inclusion body nanoparticles as an effective antigen delivery system targeting to the Peyer’s patches had the capacity to induce mucosal immunity as well as to efficiently protect mice from CVB3 induce myocarditis without any adjuvant. Then, we proposed the use of VP1 inclusion body nanoparticles as good candidate for oral vaccine to against CVB3-induced myocarditis. Conclusions Our tag-free inclusion body nanoparticles production procedure is easy and low cost and may have universal applicability to produce a variety of tag-free inclusion body nanoparticles for oral vaccine. Electronic supplementary material The online version of this article (10.1186/s12934-019-1115-z) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Xingmei Qi
- The Jiangsu Key Laboratory of Infection and Immunity, Institutes of Biology and Medical Sciences, Soochow University, Suzhou, 215123, Jiangsu, China
| | - Qian Lu
- The Jiangsu Key Laboratory of Infection and Immunity, Institutes of Biology and Medical Sciences, Soochow University, Suzhou, 215123, Jiangsu, China
| | - JingPing Hu
- The Jiangsu Key Laboratory of Infection and Immunity, Institutes of Biology and Medical Sciences, Soochow University, Suzhou, 215123, Jiangsu, China
| | - Sidong Xiong
- The Jiangsu Key Laboratory of Infection and Immunity, Institutes of Biology and Medical Sciences, Soochow University, Suzhou, 215123, Jiangsu, China.
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Targeted Nanobody-Based Molecular Tracers for Nuclear Imaging and Image-Guided Surgery. Antibodies (Basel) 2019; 8:antib8010012. [PMID: 31544818 PMCID: PMC6640687 DOI: 10.3390/antib8010012] [Citation(s) in RCA: 71] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Revised: 12/29/2018] [Accepted: 01/07/2019] [Indexed: 12/11/2022] Open
Abstract
Molecular imaging is paving the way towards noninvasive detection, staging, and treatment follow-up of diseases such as cancer and inflammation-related conditions. Monoclonal antibodies have long been one of the staples of molecular imaging tracer design, although their long blood circulation and high nonspecific background limits their applicability. Nanobodies, unique antibody-binding fragments derived from camelid heavy-chain antibodies, have excellent properties for molecular imaging as they are able to specifically find their target early after injection, with little to no nonspecific background. Nanobody-based tracers using either nuclear or fluorescent labels have been heavily investigated preclinically and are currently making their way into the clinic. In this review, we will discuss different important factors in nanobody-tracer design, as well as the current state of the art regarding their application for nuclear and fluorescent imaging purposes. Furthermore, we will discuss how nanobodies can also be exploited for molecular therapy applications such as targeted radionuclide therapy and photodynamic therapy.
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29
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Liu H, Zhang R, Li L, Zhou L, Xu Y. The high expression of Aspergillus pseudoglaucus protease in Escherichia coli for hydrolysis of soy protein and milk protein. Prep Biochem Biotechnol 2018; 48:725-733. [PMID: 30303449 DOI: 10.1080/10826068.2018.1508035] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
The hydrolysates of soy protein and milk protein are nutritional and functional food ingredients. Aspergillus pseudoglaucus aspergillopepsin I (App) is an acidic protease, including signal peptide, propeptide, and catalytic domain. Here, we cloned the catalytic domain App with or without propeptide in Escherichia coli. The results showed that the App without propeptide was not expressed or did not exhibit activity and App with propeptide (proApp) was highly expressed with a specific activity of 903 U/mg. Moreover, the denaturation temperature of proApp was 4.1 °C higher than App's. The proApp showed 104 U/mg and 252 U/mg hydrolysis activities towards soy protein and milk protein under acidic conditions. By RP-HPLC analysis, the peptides obtained from the hydrolysates of soy protein and milk protein were hydrophilic peptides. This work first demonstrates efficient proteolysis of soy protein and milk protein through the functional expression of full-length proApp, which will likely have valuable industrial applications.
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Affiliation(s)
- Haiyan Liu
- a Key Laboratory of Industrial Biotechnology of Ministry of Education and School of Biotechnology , Jiangnan University , Wuxi , P. R. China
| | - Rongzhen Zhang
- a Key Laboratory of Industrial Biotechnology of Ministry of Education and School of Biotechnology , Jiangnan University , Wuxi , P. R. China
| | - Lihong Li
- a Key Laboratory of Industrial Biotechnology of Ministry of Education and School of Biotechnology , Jiangnan University , Wuxi , P. R. China
| | - Lixian Zhou
- a Key Laboratory of Industrial Biotechnology of Ministry of Education and School of Biotechnology , Jiangnan University , Wuxi , P. R. China
| | - Yan Xu
- a Key Laboratory of Industrial Biotechnology of Ministry of Education and School of Biotechnology , Jiangnan University , Wuxi , P. R. China
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Vandenberg A, Lin WC, Tai LH, Ron D, Wilbrecht L. Mice engineered to mimic a common Val66Met polymorphism in the BDNF gene show greater sensitivity to reversal in environmental contingencies. Dev Cogn Neurosci 2018; 34:34-41. [PMID: 29909248 PMCID: PMC6596311 DOI: 10.1016/j.dcn.2018.05.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Revised: 04/30/2018] [Accepted: 05/28/2018] [Indexed: 12/22/2022] Open
Abstract
A new line of mice,Val68Met, mimic human BDNF Val66Met polymorphism. New knock-in BDNF Met mice reverse more efficiently than Val in two separate tasks. Supports theory that BDNF Met allele confers greater sensitivity to the environment. Reversal performance can be dissociated from go/no-go and extinction performance. Phenotypes differ between newer and older BDNF Val66Met mouse models.
A common human polymorphism in the gene that encodes brain derived neurotrophic factor (BDNF), Val66Met, is considered a marker of vulnerability for mental health issues and has been associated with cognitive impairment. An alternate framework has been proposed in which “risk alleles” are reinterpreted as “plasticity alleles” that confer vulnerability in adverse environments and positive effects in neutral or positive environments (Belsky et al., 2009). These frameworks produce divergent predictions for tests of learning and cognitive flexibility. Here, we examined multiple aspects of learning and cognitive flexibility in a relatively new BDNF Val66Met mouse model (BDNF Val68Met, Warnault et al., 2016), including multiple choice discrimination and reversal, go/no-go learning and reversal, and appetitive extinction learning. We found that mice homozygous for the Met allele show more efficient reversal learning in two different paradigms, but learn at rates comparable to Val homozygotes on the multiple choice discrimination task, a go/no-go task, and in appetitive extinction. Our results dissociate reversal performance from go/no-go learning and appetitive extinction and support the plasticity allele framework that suggests BDNF Met carriers are potentially more sensitive to changes in the environment.
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Affiliation(s)
- Angela Vandenberg
- Neuroscience Graduate Program, University of California, San Francisco, CA, 94158, USA
| | - Wan Chen Lin
- Department of Psychology, University of California, Berkeley, CA, 94720, USA
| | - Lung-Hao Tai
- Department of Psychology, University of California, Berkeley, CA, 94720, USA
| | - Dorit Ron
- Department of Neurology, University of California, San Francisco, CA, 94158, USA
| | - Linda Wilbrecht
- Department of Psychology, University of California, Berkeley, CA, 94720, USA; Helen Wills Neuroscience Institute, University of California, Berkeley, CA, 94720 USA.
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31
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Schumacher J, Bacic T, Staritzbichler R, Daneschdar M, Klamp T, Arnold P, Jägle S, Türeci Ö, Markl J, Sahin U. Enhanced stability of a chimeric hepatitis B core antigen virus-like-particle (HBcAg-VLP) by a C-terminal linker-hexahistidine-peptide. J Nanobiotechnology 2018; 16:39. [PMID: 29653575 PMCID: PMC5897928 DOI: 10.1186/s12951-018-0363-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Accepted: 03/21/2018] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND Virus-like-particles (VLPs) are attractive nanoparticulate scaffolds for broad applications in material/biological sciences and medicine. Prior their functionalization, specific adaptations have to be carried out. These adjustments frequently lead to disordered particles, but the particle integrity is an essential factor for the VLP suitability. Therefore, major requirements for particle stabilization exist. The objective of this study was to evaluate novel stabilizing elements for functionalized chimeric hepatitis B virus core antigen virus-like particles (HBcAg-VLP), with beneficial characteristics for vaccine development, imaging or delivery. RESULTS The effects of a carboxy-terminal polyhistidine-peptide and an intradimer disulfide-bridge on the stability of preclinically approved chimeric HBcAg-VLPs were assessed. We purified recombinant chimeric HBcAg-VLPs bearing different modified C-termini and compared their physical and chemical particle stability by quantitative protein-biochemical and biophysical techniques. We observed lower chemical resistance of T = 3- compared to T = 4-VLP (triangulation number) capsids and profound impairment of accessibility of hexahistidine-peptides in assembled VLPs. Histidines attached to the C-terminus were associated with superior mechanical and/or chemical particle stability depending on the number of histidine moieties. A molecular modeling approach based on cryo-electron microscopy and biolayer interferometry revealed the underlying structural mechanism for the strengthening of the integrity of VLPs. Interactions triggering capsid stabilization occur on a highly conserved residue on the basis of HBcAg-monomers as well as on hexahistidine-peptides of adjacent monomers. This new stabilization mechanism appears to mimic an evolutionary conserved stabilization concept for hepadnavirus core proteins. CONCLUSIONS These findings establish the genetically simply transferable C-terminal polyhistidine-peptide as a general stabilizing element for chimeric HBcAg-VLPs to increase their suitability.
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Affiliation(s)
- Jens Schumacher
- Biopharmaceutical New Technologies (BioNTech) Protein Therapeutics Corporation, An der Goldgrube 12, 55131, Mainz, Germany.,Department of Internal Medicine III, Translational and Experimental Oncology, University Medical Center of Johannes Gutenberg University, Langenbeckstrasse 1, 55131, Mainz, Germany
| | - Tijana Bacic
- Biopharmaceutical New Technologies (BioNTech) Protein Therapeutics Corporation, An der Goldgrube 12, 55131, Mainz, Germany.,Department of Internal Medicine III, Translational and Experimental Oncology, University Medical Center of Johannes Gutenberg University, Langenbeckstrasse 1, 55131, Mainz, Germany
| | - René Staritzbichler
- TRON Translational Oncology, University Medical Center of Johannes Gutenberg University, TRON gGmbH, Freiligrathstrasse 12, 55131, Mainz, Germany
| | - Matin Daneschdar
- Department of Internal Medicine III, Translational and Experimental Oncology, University Medical Center of Johannes Gutenberg University, Langenbeckstrasse 1, 55131, Mainz, Germany
| | - Thorsten Klamp
- Biopharmaceutical New Technologies (BioNTech) Protein Therapeutics Corporation, An der Goldgrube 12, 55131, Mainz, Germany.,Department of Internal Medicine III, Translational and Experimental Oncology, University Medical Center of Johannes Gutenberg University, Langenbeckstrasse 1, 55131, Mainz, Germany
| | - Philipp Arnold
- Institute of Zoology, Johannes Gutenberg University, Johannes-von-Müller-Weg 6, 55128, Mainz, Germany.,Anatomical Institute, Otto-Hahn Platz 8, 24118, Kiel, Germany
| | - Sabrina Jägle
- Biopharmaceutical New Technologies (BioNTech) Protein Therapeutics Corporation, An der Goldgrube 12, 55131, Mainz, Germany.,Department of Internal Medicine III, Translational and Experimental Oncology, University Medical Center of Johannes Gutenberg University, Langenbeckstrasse 1, 55131, Mainz, Germany
| | - Özlem Türeci
- Ganymed Pharmaceuticals AG, An der Goldgrube 12, 55131, Mainz, Germany
| | - Jürgen Markl
- Institute of Zoology, Johannes Gutenberg University, Johannes-von-Müller-Weg 6, 55128, Mainz, Germany
| | - Ugur Sahin
- Biopharmaceutical New Technologies (BioNTech) Protein Therapeutics Corporation, An der Goldgrube 12, 55131, Mainz, Germany. .,Department of Internal Medicine III, Translational and Experimental Oncology, University Medical Center of Johannes Gutenberg University, Langenbeckstrasse 1, 55131, Mainz, Germany. .,TRON Translational Oncology, University Medical Center of Johannes Gutenberg University, TRON gGmbH, Freiligrathstrasse 12, 55131, Mainz, Germany.
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Siegemund M, Beha N, Müller D. Production, Purification, and Characterization of Antibody-TNF Superfamily Ligand Fusion Proteins. Methods Mol Biol 2018; 1827:351-364. [PMID: 30196506 DOI: 10.1007/978-1-4939-8648-4_18] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Antibody-fusion proteins with ligands, e.g., of the TNF superfamily (TNFSF) can be adequately produced in mammalian expression systems. Here, we describe the transient production in adherent and suspension human embryonic kidney cells at laboratory scale, followed by purification procedures applying protein A and immobilized metal affinity chromatography for proteins with Fc domain and 6 × histidine-tag, respectively. In addition, characterization of the purified proteins by size exclusion chromatography is described.
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Affiliation(s)
- Martin Siegemund
- Institute of Cell Biology and Immunology, University of Stuttgart, Stuttgart, Germany
| | - Nadine Beha
- Institute of Cell Biology and Immunology, University of Stuttgart, Stuttgart, Germany
| | - Dafne Müller
- Institute of Cell Biology and Immunology, University of Stuttgart, Stuttgart, Germany.
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Jacobsen MM, Tokareva OS, Ebrahimi D, Huang W, Ling S, Dinjaski N, Li D, Simon M, Staii C, Buehler MJ, Kaplan DL, Wong JY. Effect of Terminal Modification on the Molecular Assembly and Mechanical Properties of Protein-Based Block Copolymers. Macromol Biosci 2017; 17:10.1002/mabi.201700095. [PMID: 28665510 PMCID: PMC5600892 DOI: 10.1002/mabi.201700095] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2017] [Revised: 05/03/2017] [Indexed: 01/13/2023]
Abstract
Accurate prediction and validation of the assembly of bioinspired peptide sequences into fibers with defined mechanical characteristics would aid significantly in designing and creating materials with desired properties. This process may also be utilized to provide insight into how the molecular architecture of many natural protein fibers is assembled. In this work, computational modeling and experimentation are used in tandem to determine how peptide terminal modification affects a fiber-forming core domain. Modeling shows that increased terminal molecular weight and hydrophilicity improve peptide chain alignment under shearing conditions and promote consolidation of semicrystalline domains. Mechanical analysis shows acute improvements to strength and elasticity, but significantly reduced extensibility and overall toughness. These results highlight an important entropic function that terminal domains of fiber-forming peptides exhibit as chain alignment promoters, which ultimately has notable consequences on the mechanical behavior of the final fiber products.
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Affiliation(s)
- Matthew M Jacobsen
- Department of Biomedical Engineering, Boston University, Boston, MA, 02215, USA
| | - Olena S Tokareva
- Department of Biomedical Engineering, Tufts University, Medford, MA, 02155, USA
| | - Davoud Ebrahimi
- Department of Civil and Environmental Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Wenwen Huang
- Department of Biomedical Engineering, Tufts University, Medford, MA, 02155, USA
| | - Shengjie Ling
- Department of Civil and Environmental Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Nina Dinjaski
- Department of Biomedical Engineering, Tufts University, Medford, MA, 02155, USA
| | - David Li
- Department of Biomedical Engineering, Boston University, Boston, MA, 02215, USA
| | - Marc Simon
- Department of Physics and Astronomy, Center for Nanoscopic Physics, Tufts University, Medford, MA, 02155, USA
| | - Cristian Staii
- Department of Physics and Astronomy, Center for Nanoscopic Physics, Tufts University, Medford, MA, 02155, USA
| | - Markus J Buehler
- Department of Civil and Environmental Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - David L Kaplan
- Department of Biomedical Engineering, Tufts University, Medford, MA, 02155, USA
| | - Joyce Y Wong
- Department of Biomedical Engineering, Boston University, Boston, MA, 02215, USA
- Division of Materials Science and Engineering, Boston University, Boston, MA, 02215, USA
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Accelerating the clinical development of protein-based vaccines for malaria by efficient purification using a four amino acid C-terminal 'C-tag'. Int J Parasitol 2017; 47:435-446. [PMID: 28153778 PMCID: PMC5482323 DOI: 10.1016/j.ijpara.2016.12.001] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2016] [Revised: 12/19/2016] [Accepted: 12/21/2016] [Indexed: 11/20/2022]
Abstract
Fusion of a four amino acid ‘C-tag’ allows purification of a PfRH5 malaria vaccine. Overall process yield of 40–45% and very high product purity (>99%) was achieved. His6-tagged and C-tagged PfRH5 are conformational and bind to basigin. C-tag will facilitate the clinical translation of difficult-to-produce antigens.
Development of bespoke biomanufacturing processes remains a critical bottleneck for translational studies, in particular when modest quantities of a novel product are required for proof-of-concept Phase I/II clinical trials. In these instances the ability to develop a biomanufacturing process quickly and relatively cheaply, without risk to product quality or safety, provides a great advantage by allowing new antigens or concepts in immunogen design to more rapidly enter human testing. These challenges with production and purification are particularly apparent when developing recombinant protein-based vaccines for difficult parasitic diseases, with Plasmodium falciparum malaria being a prime example. To that end, we have previously reported the expression of a novel protein vaccine for malaria using the ExpreS2Drosophila melanogaster Schneider 2 stable cell line system, however, a very low overall process yield (typically <5% recovery of hexa-histidine-tagged protein) meant the initial purification strategy was not suitable for scale-up and clinical biomanufacture of such a vaccine. Here we describe a newly available affinity purification method that was ideally suited to purification of the same protein which encodes the P. falciparum reticulocyte-binding protein homolog 5 – currently the leading antigen for assessment in next generation vaccines aiming to prevent red blood cell invasion by the blood-stage parasite. This purification system makes use of a C-terminal tag known as ‘C-tag’, composed of the four amino acids, glutamic acid – proline – glutamic acid – alanine (E-P-E-A), which is selectively purified on a CaptureSelect™ affinity resin coupled to a camelid single chain antibody, called NbSyn2. The C-terminal fusion of this short C-tag to P. falciparum reticulocyte-binding protein homolog 5 achieved >85% recovery and >70% purity in a single step purification directly from clarified, concentrated Schneider 2 cell supernatant under mild conditions. Biochemical and immunological analysis showed that the C-tagged and hexa-histidine-tagged P. falciparum reticulocyte-binding protein homolog 5 proteins are comparable. The C-tag technology has the potential to form the basis of a current good manufacturing practice-compliant platform, which could greatly improve the speed and ease with which novel protein-based products progress to clinical testing.
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Manuel-Cabrera CA, Vallejo-Cardona AA, Padilla-Camberos E, Hernández-Gutiérrez R, Herrera-Rodríguez SE, Gutiérrez-Ortega A. Self-assembly of hexahistidine-tagged tobacco etch virus capsid protein into microfilaments that induce IgG2-specific response against a soluble porcine reproductive and respiratory syndrome virus chimeric protein. Virol J 2016; 13:196. [PMID: 27894314 PMCID: PMC5126848 DOI: 10.1186/s12985-016-0651-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Accepted: 11/17/2016] [Indexed: 11/10/2022] Open
Abstract
Background Assembly of recombinant capsid proteins into virus-like particles (VLPs) still represents an interesting challenge in virus-based nanotechnologies. The structure of VLPs has gained importance for the development and design of new adjuvants and antigen carriers. The potential of Tobacco etch virus capsid protein (TEV CP) as adjuvant has not been evaluated to date. Findings Two constructs for TEV CP expression in Escherichia coli were generated: a wild-type version (TEV-CP) and a C-terminal hexahistidine (His)-tagged version (His-TEV-CP). Although both versions were expressed in the soluble fraction of E. coli lysates, only His-TEV-CP self-assembled into micrometric flexuous filamentous VLPs. In addition, the His-tag enabled high yields and facilitated purification of TEV VLPs. These TEV VLPs elicited broader IgG2-specific antibody response against a novel porcine reproductive and respiratory syndrome virus (PRRSV) protein when compared to the potent IgG1 response induced by the protein alone. Conclusions His-TEV CP was purified by immobilized metal affinity chromatography and assembled into VLPs, some of them reaching 2-μm length. TEV VLPs administered along with PRRSV chimeric protein changed the IgG2/IgG1 ratio against the chimeric protein, suggesting that TEV CP can modulate the immune response against a soluble antigen. Electronic supplementary material The online version of this article (doi:10.1186/s12985-016-0651-y) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Carlos Alberto Manuel-Cabrera
- Unidad de Biotecnología Médica y Farmacéutica, Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco A.C., Normalistas 800, Colinas de la Normal, 44270, Guadalajara, Jalisco, Mexico
| | - Alba Adriana Vallejo-Cardona
- Unidad de Biotecnología Médica y Farmacéutica, Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco A.C., Normalistas 800, Colinas de la Normal, 44270, Guadalajara, Jalisco, Mexico
| | - Eduardo Padilla-Camberos
- Unidad de Biotecnología Médica y Farmacéutica, Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco A.C., Normalistas 800, Colinas de la Normal, 44270, Guadalajara, Jalisco, Mexico
| | - Rodolfo Hernández-Gutiérrez
- Unidad de Biotecnología Médica y Farmacéutica, Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco A.C., Normalistas 800, Colinas de la Normal, 44270, Guadalajara, Jalisco, Mexico
| | - Sara Elisa Herrera-Rodríguez
- Unidad de Biotecnología Médica y Farmacéutica, Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco A.C., Normalistas 800, Colinas de la Normal, 44270, Guadalajara, Jalisco, Mexico
| | - Abel Gutiérrez-Ortega
- Unidad de Biotecnología Médica y Farmacéutica, Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco A.C., Normalistas 800, Colinas de la Normal, 44270, Guadalajara, Jalisco, Mexico.
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Henry KA, Sulea T, van Faassen H, Hussack G, Purisima EO, MacKenzie CR, Arbabi-Ghahroudi M. A Rational Engineering Strategy for Designing Protein A-Binding Camelid Single-Domain Antibodies. PLoS One 2016; 11:e0163113. [PMID: 27631624 PMCID: PMC5025174 DOI: 10.1371/journal.pone.0163113] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2016] [Accepted: 09/04/2016] [Indexed: 12/21/2022] Open
Abstract
Staphylococcal protein A (SpA) and streptococcal protein G (SpG) affinity chromatography are the gold standards for purifying monoclonal antibodies (mAbs) in therapeutic applications. However, camelid VHH single-domain Abs (sdAbs or VHHs) are not bound by SpG and only sporadically bound by SpA. Currently, VHHs require affinity tag-based purification, which limits their therapeutic potential and adds considerable complexity and cost to their production. Here we describe a simple and rapid mutagenesis-based approach designed to confer SpA binding upon a priori non-SpA-binding VHHs. We show that SpA binding of VHHs is determined primarily by the same set of residues as in human mAbs, albeit with an unexpected degree of tolerance to substitutions at certain core and non-core positions and some limited dependence on at least one residue outside the SpA interface, and that SpA binding could be successfully introduced into five VHHs against three different targets with no adverse effects on expression yield or antigen binding. Next-generation sequencing of llama, alpaca and dromedary VHH repertoires suggested that species differences in SpA binding may result from frequency variation in specific deleterious polymorphisms, especially Ile57. Thus, the SpA binding phenotype of camelid VHHs can be easily modulated to take advantage of tag-less purification techniques, although the frequency with which this is required may depend on the source species.
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Affiliation(s)
- Kevin A. Henry
- Human Health Therapeutics Portfolio, National Research Council Canada, 100 Sussex Drive, Ottawa, Ontario, Canada, K1A 0R6
| | - Traian Sulea
- Human Health Therapeutics Portfolio, National Research Council Canada, 6100 Royalmount Avenue, Montreal, Quebec, Canada, H4P 2R2
| | - Henk van Faassen
- Human Health Therapeutics Portfolio, National Research Council Canada, 100 Sussex Drive, Ottawa, Ontario, Canada, K1A 0R6
| | - Greg Hussack
- Human Health Therapeutics Portfolio, National Research Council Canada, 100 Sussex Drive, Ottawa, Ontario, Canada, K1A 0R6
| | - Enrico O. Purisima
- Human Health Therapeutics Portfolio, National Research Council Canada, 6100 Royalmount Avenue, Montreal, Quebec, Canada, H4P 2R2
| | - C. Roger MacKenzie
- Human Health Therapeutics Portfolio, National Research Council Canada, 100 Sussex Drive, Ottawa, Ontario, Canada, K1A 0R6
- School of Environmental Sciences, University of Guelph, 50 Stone Road East, Guelph, Ontario, Canada, N1G 2W1
| | - Mehdi Arbabi-Ghahroudi
- Human Health Therapeutics Portfolio, National Research Council Canada, 100 Sussex Drive, Ottawa, Ontario, Canada, K1A 0R6
- School of Environmental Sciences, University of Guelph, 50 Stone Road East, Guelph, Ontario, Canada, N1G 2W1
- Department of Biology, Carleton University, 1125 Colonel By Drive, Ottawa, Ontario, Canada, K1S 5B6
- * E-mail:
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Valle A, Hervis Y, Socas L, Canet L, Faheem M, Barbosa J, Lanio M, Pazos I. The multigene families of actinoporins (part II): Strategies for heterologous production in Escherichia coli. Toxicon 2016; 118:64-81. [DOI: 10.1016/j.toxicon.2016.03.018] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2016] [Accepted: 03/24/2016] [Indexed: 11/26/2022]
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Navarro-Retamal C, Bremer A, Alzate-Morales J, Caballero J, Hincha DK, González W, Thalhammer A. Molecular dynamics simulations and CD spectroscopy reveal hydration-induced unfolding of the intrinsically disordered LEA proteins COR15A and COR15B from Arabidopsis thaliana. Phys Chem Chem Phys 2016; 18:25806-16. [PMID: 27255148 DOI: 10.1039/c6cp02272c] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
The LEA (late embryogenesis abundant) proteins COR15A and COR15B from Arabidopsis thaliana are intrinsically disordered under fully hydrated conditions, but obtain α-helical structure during dehydration, which is reversible upon rehydration. To understand this unusual structural transition, both proteins were investigated by circular dichroism (CD) and molecular dynamics (MD) approaches. MD simulations showed unfolding of the proteins in water, in agreement with CD data obtained with both HIS-tagged and untagged recombinant proteins. Mainly intramolecular hydrogen bonds (H-bonds) formed by the protein backbone were replaced by H-bonds with water molecules. As COR15 proteins function in vivo as protectants in leaves partially dehydrated by freezing, unfolding was further assessed under crowded conditions. Glycerol reduced (40%) or prevented (100%) unfolding during MD simulations, in agreement with CD spectroscopy results. H-bonding analysis indicated that preferential exclusion of glycerol from the protein backbone increased stability of the folded state.
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Affiliation(s)
- Carlos Navarro-Retamal
- Center for Bioinformatics and Molecular Simulations, Universidad de Talca, 2 Norte 685, Casilla 721, Talca, Chile. (Wendy González, for correspondence relating to protein modelling)
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Tripathi NK. Production and Purification of Recombinant Proteins fromEscherichia coli. CHEMBIOENG REVIEWS 2016. [DOI: 10.1002/cben.201600002] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Arukha AP, Minhas V, Shrestha A, Gupta SK. Contraceptive efficacy of recombinant fusion protein comprising zona pellucida glycoprotein-3 fragment and gonadotropin releasing hormone. J Reprod Immunol 2016; 114:18-26. [PMID: 26859695 DOI: 10.1016/j.jri.2016.01.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2015] [Revised: 12/28/2015] [Accepted: 01/25/2016] [Indexed: 10/22/2022]
Abstract
Contraceptive vaccines have been used for the management of wildlife population. In the present study, we have examined the contraceptive potential of Escherichia coli-expressed recombinant fusion protein comprising of 'promiscuous' T cell epitope of tetanus toxoid [TT; amino acid (aa) residues 830-844] followed by dilysine linker (KK), dog ZP3 fragment (aa residues 307-346), triglycine spacer (GGG), T cell epitope of bovine RNase (bRNase; aa residues 94-104), GnRH, T cell epitope of circumsporozoite protein of Plasmodium falciparum (CSP; aa residues 362-383), and GnRH. SDS-PAGE analysis of the purified refolded protein revealed a dominant ∼12 kDa band, which in Western blot reacted with mouse polyclonal antibodies against dog ZP3 fragment and mouse monoclonal antibodies against GnRH. Immunization of female FvB/J mice following two booster schedule with the above recombinant protein supplemented with alum led to high antibody titres against the immunogen as well as ZP3 and GnRH as determined by ELISA. The immune sera reacted with zona pellucida of mouse oocyte and also inhibited in-vitro fertilization. The qRT-PCR studies showed decrease in the ovarian GnRH receptor in mice immunized with the recombinant fusion protein. Mating studies revealed high contraceptive efficacy of the recombinant protein as in two independent experiments, 90% of the immunized female mice failed to conceive. Following one booster immunization schedule, 50% of the immunized female mice failed to conceive. However, in adjuvanted controls, all the female mice became pregnant. To conclude, the recombinant protein described herein has a good potential to be developed as candidate contraceptive vaccine.
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Affiliation(s)
- Ananta Prasad Arukha
- Reproductive Cell Biology Lab., National Institute of Immunology, Aruna Asaf Ali Marg, New Delhi 110 067, India
| | - Vidisha Minhas
- Reproductive Cell Biology Lab., National Institute of Immunology, Aruna Asaf Ali Marg, New Delhi 110 067, India
| | - Abhinav Shrestha
- Reproductive Cell Biology Lab., National Institute of Immunology, Aruna Asaf Ali Marg, New Delhi 110 067, India
| | - Satish Kumar Gupta
- Reproductive Cell Biology Lab., National Institute of Immunology, Aruna Asaf Ali Marg, New Delhi 110 067, India.
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Mooney JT, Fredericks DP, Christensen T, Bruun Schiødt C, Hearn MTW. N-terminal processing of affinity-tagged recombinant proteins purified by IMAC procedures. J Mol Recognit 2015; 28:401-12. [PMID: 25727088 DOI: 10.1002/jmr.2456] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2014] [Revised: 07/09/2014] [Accepted: 11/21/2014] [Indexed: 11/07/2022]
Abstract
The ability of a new class of metal binding tags to facilitate the purification of recombinant proteins, exemplified by the tagged glutathione S-transferase and human growth hormone, from Escherichia coli fermentation broths and lysates has been further investigated. These histidine-containing tags exhibit high affinity for borderline metal ions chelated to the immobilised ligand, 1,4,7-triazacyclononane (tacn). The use of this tag-tacn immobilised metal ion affinity chromatography (IMAC) system engenders high selectivity with regard to host cell protein removal and permits facile tag removal from the E. coli-expressed recombinant protein. In particular, these tags were specifically designed to enable their efficient removal by the dipeptidyl aminopeptidase 1 (DAP-1), thus capturing the advantages of high substrate specificity and rates of cleavage. MALDI-TOF MS analysis of the cleaved products from the DAP-1 digestion of the recombinant N-terminally tagged proteins confirmed the complete removal of the tag within 4-12 h under mild experimental conditions. Overall, this study demonstrates that the use of tags specifically designed to target tacn-based IMAC resins offers a comprehensive and flexible approach for the purification of E. coli-expressed recombinant proteins, where complete removal of the tag is an essential prerequisite for subsequent application of the purified native proteins in studies aimed at delineating the molecular and cellular basis of specific biological processes.
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Affiliation(s)
- Jane T Mooney
- Centre for Green Chemistry, School of Chemistry, Monash University, Clayton, Victoria, 3800, Australia
| | - Dale P Fredericks
- Centre for Green Chemistry, School of Chemistry, Monash University, Clayton, Victoria, 3800, Australia
| | | | | | - Milton T W Hearn
- Centre for Green Chemistry, School of Chemistry, Monash University, Clayton, Victoria, 3800, Australia
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Zhao G, Jin Z, Allewell NM, Tuchman M, Shi D. Structures of the N-acetyltransferase domain of Xylella fastidiosa N-acetyl-L-glutamate synthase/kinase with and without a His tag bound to N-acetyl-L-glutamate. Acta Crystallogr F Struct Biol Commun 2015; 71:86-95. [PMID: 25615976 PMCID: PMC4304755 DOI: 10.1107/s2053230x14026788] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2014] [Accepted: 12/05/2014] [Indexed: 11/10/2022] Open
Abstract
Structures of the catalytic N-acetyltransferase (NAT) domain of the bifunctional N-acetyl-L-glutamate synthase/kinase (NAGS/K) from Xylella fastidiosa bound to N-acetyl-L-glutamate (NAG) with and without an N-terminal His tag have been solved and refined at 1.7 and 1.4 Å resolution, respectively. The NAT domain with an N-terminal His tag crystallized in space group P4(1)2(1)2, with unit-cell parameters a=b=51.72, c=242.31 Å. Two subunits form a molecular dimer in the asymmetric unit, which contains ∼41% solvent. The NAT domain without an N-terminal His tag crystallized in space group P21, with unit-cell parameters a=63.48, b=122.34, c=75.88 Å, β=107.6°. Eight subunits, which form four molecular dimers, were identified in the asymmetric unit, which contains ∼38% solvent. The structures with and without the N-terminal His tag provide an opportunity to evaluate how the His tag affects structure and function. Furthermore, multiple subunits in different packing environments allow an assessment of the plasticity of the NAG binding site, which might be relevant to substrate binding and product release. The dimeric structure of the X. fastidiosa N-acetytransferase (xfNAT) domain is very similar to that of human N-acetyltransferase (hNAT), reinforcing the notion that mammalian NAGS is evolutionally derived from bifunctional bacterial NAGS/K.
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Affiliation(s)
- Gengxiang Zhao
- Center for Genetic Medicine Research and Department of Integrative Systems Biology, Children’s National Medical Center, The George Washington University, Washington, DC 20010, USA
| | - Zhongmin Jin
- Southeast Regional Collaborative Access Team, Advanced Photon Source, Argonne National Laboratory, Argonne, IL 60439, USA
| | - Norma M. Allewell
- Department of Cell Biology and Molecular Genetics and Department of Chemistry and Biochemistry, College of Computer, Mathematical, and Natural Sciences, University of Maryland, College Park, MD 20742, USA
| | - Mendel Tuchman
- Center for Genetic Medicine Research and Department of Integrative Systems Biology, Children’s National Medical Center, The George Washington University, Washington, DC 20010, USA
| | - Dashuang Shi
- Center for Genetic Medicine Research and Department of Integrative Systems Biology, Children’s National Medical Center, The George Washington University, Washington, DC 20010, USA
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Shrestha A, Srichandan S, Minhas V, Panda AK, Gupta SK. Canine zona pellucida glycoprotein-3: Up-scaled production, immunization strategy and its outcome on fertility. Vaccine 2015; 33:133-40. [DOI: 10.1016/j.vaccine.2014.11.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2014] [Revised: 09/20/2014] [Accepted: 11/02/2014] [Indexed: 11/25/2022]
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44
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Buyel J, Gruchow H, Boes A, Fischer R. Rational design of a host cell protein heat precipitation step simplifies the subsequent purification of recombinant proteins from tobacco. Biochem Eng J 2014. [DOI: 10.1016/j.bej.2014.04.015] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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45
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Naz RK. Vaccine for human contraception targeting sperm Izumo protein and YLP12 dodecamer peptide. Protein Sci 2014; 23:857-68. [PMID: 24723387 PMCID: PMC4088970 DOI: 10.1002/pro.2476] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2014] [Revised: 04/02/2014] [Accepted: 04/03/2014] [Indexed: 01/06/2023]
Abstract
There is an urgent need to develop a better method of contraception which is non-steroidal and reversible to control world population explosion and unintended pregnancies. Contraceptive vaccines (CV), especially targeting sperm-specific proteins, can provide an ideal contraceptive modality. Sperm-specific proteins can induce an immune response in women as well as men, thus can be used for CV development in both sexes. In this article, we will review two sperm-specific proteins, namely Izumo protein and YLP12 dodecamer peptide. Gene-knockout studies indicate that Izumo protein is essential for sperm-egg membrane fusion. Vaccination with Izumo protein or its cDNA causes a significant reduction in fertility of female mice. The antibodies to human Izumo inhibit human sperm penetration assay. Recently, our laboratory found that a significant percentage of infertile women have antibodies to Izumo protein. The second sperm-specific protein is YLP12 , a peptide mimetic sequence present on human sperm involved in recognition and binding to the human oocyte zona pellucida. Vaccination with YLP12 or its cDNA causes long-term, reversible contraception, without side effects, in female mice. Infertile, but not fertile, men and women have antibodies to YLP12 peptide. Our laboratory has isolated, cloned, and sequenced cDNA encoding human single chain variable fragment (scFv) antibody from infertile men which reacts with YLP12 peptide. The human YLP12 scFv antibody may provide a novel passive immunocontraceptive, the first of its kind. In conclusion, sperm-specific Izumo protein and YLP12 peptide can provide exciting candidates for antisperm CV development.
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Affiliation(s)
- Rajesh K Naz
- Reproductive Immunology and Molecular Biology Laboratories, Department of Obstetrics and Gynecology, West Virginia University, School of MedicineMorgantown, West Virginia
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46
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Rosano GL, Ceccarelli EA. Recombinant protein expression in Escherichia coli: advances and challenges. Front Microbiol 2014; 5:172. [PMID: 24860555 PMCID: PMC4029002 DOI: 10.3389/fmicb.2014.00172] [Citation(s) in RCA: 1285] [Impact Index Per Article: 128.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2013] [Accepted: 03/29/2014] [Indexed: 12/28/2022] Open
Abstract
Escherichia coli is one of the organisms of choice for the production of recombinant proteins. Its use as a cell factory is well-established and it has become the most popular expression platform. For this reason, there are many molecular tools and protocols at hand for the high-level production of heterologous proteins, such as a vast catalog of expression plasmids, a great number of engineered strains and many cultivation strategies. We review the different approaches for the synthesis of recombinant proteins in E. coli and discuss recent progress in this ever-growing field.
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Affiliation(s)
- Germán L Rosano
- Instituto de Biología Molecular y Celular de Rosario, Consejo Nacional de Investigaciones Científicas y Técnicas Rosario, Argentina ; Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario Rosario, Argentina
| | - Eduardo A Ceccarelli
- Instituto de Biología Molecular y Celular de Rosario, Consejo Nacional de Investigaciones Científicas y Técnicas Rosario, Argentina ; Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario Rosario, Argentina
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Guan D, Chen Z. Challenges and recent advances in affinity purification of tag-free proteins. Biotechnol Lett 2014; 36:1391-406. [DOI: 10.1007/s10529-014-1509-2] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2013] [Accepted: 03/03/2014] [Indexed: 12/19/2022]
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48
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Cowan GJM, Bockau U, Eleni-Muus J, Aldag I, Samuel K, Creasey AM, Hartmann MWW, Cavanagh DR. A novel malaria vaccine candidate antigen expressed in Tetrahymena thermophila. PLoS One 2014; 9:e87198. [PMID: 24489871 PMCID: PMC3906136 DOI: 10.1371/journal.pone.0087198] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2013] [Accepted: 12/20/2013] [Indexed: 01/15/2023] Open
Abstract
Development of effective malaria vaccines is hampered by the problem of producing correctly folded Plasmodium proteins for use as vaccine components. We have investigated the use of a novel ciliate expression system, Tetrahymena thermophila, as a P. falciparum vaccine antigen platform. A synthetic vaccine antigen composed of N-terminal and C-terminal regions of merozoite surface protein-1 (MSP-1) was expressed in Tetrahymena thermophila. The recombinant antigen was secreted into the culture medium and purified by monoclonal antibody (mAb) affinity chromatography. The vaccine was immunogenic in MF1 mice, eliciting high antibody titers against both N- and C-terminal components. Sera from immunized animals reacted strongly with P. falciparum parasites from three antigenically different strains by immunofluorescence assays, confirming that the antibodies produced are able to recognize parasite antigens in their native form. Epitope mapping of serum reactivity with a peptide library derived from all three MSP-1 Block 2 serotypes confirmed that the MSP-1 Block 2 hybrid component of the vaccine had effectively targeted all three serotypes of this polymorphic region of MSP-1. This study has successfully demonstrated the use of Tetrahymena thermophila as a recombinant protein expression platform for the production of malaria vaccine antigens.
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Affiliation(s)
- Graeme J. M. Cowan
- Institute of Immunology and Infection Research, Centre for Immunity, Infection and Evolution, University of Edinburgh, Edinburgh, United Kingdom
| | | | | | | | - Kay Samuel
- Cell Therapy Group, Scottish National Blood Transfusion Service, Edinburgh, United Kingdom
| | - Alison M. Creasey
- Institute of Immunology and Infection Research, Centre for Immunity, Infection and Evolution, University of Edinburgh, Edinburgh, United Kingdom
| | | | - David R. Cavanagh
- Institute of Immunology and Infection Research, Centre for Immunity, Infection and Evolution, University of Edinburgh, Edinburgh, United Kingdom
- * E-mail:
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Shrestha A, Wadhwa N, Gupta SK. Evaluation of recombinant fusion protein comprising dog zona pellucida glycoprotein-3 and Izumo and individual fragments as immunogens for contraception. Vaccine 2014; 32:564-71. [DOI: 10.1016/j.vaccine.2013.11.078] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2013] [Revised: 11/11/2013] [Accepted: 11/21/2013] [Indexed: 11/30/2022]
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50
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Siegemund M, Richter F, Seifert O, Unverdorben F, Kontermann RE. Expression and purification of recombinant antibody formats and antibody fusion proteins. Methods Mol Biol 2014; 1131:273-295. [PMID: 24515473 DOI: 10.1007/978-1-62703-992-5_18] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
In the laboratory-scale production of antibody fragments or antibody fusion proteins, it is often difficult to keep track on the most suitable affinity tags for protein purification from either prokaryotic or eukaryotic host systems. Here, we describe how such recombinant proteins derived from Escherichia coli lysates as well as HEK293 cell culture supernatants are purified by IMAC and by different affinity chromatography methods based on fusions to FLAG-tag, Strep-tag, and Fc domains.
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Affiliation(s)
- Martin Siegemund
- Institut für Zellbiologie und Immunologie, Universität Stuttgart, Stuttgart, Germany
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