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Watanabe H, Hayashida N, Sato M, Honda S. Biosensing-based quality control monitoring of the higher-order structures of therapeutic antibody domains. Anal Chim Acta 2024; 1303:342439. [PMID: 38609254 DOI: 10.1016/j.aca.2024.342439] [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: 11/06/2023] [Revised: 01/18/2024] [Accepted: 02/28/2024] [Indexed: 04/14/2024]
Abstract
Advanced biopharmaceutical manufacturing requires novel process analytical technologies for the rapid and sensitive assessment of the higher-order structures of therapeutic proteins. However, conventional physicochemical analyses of denatured proteins have limitations in terms of sensitivity, throughput, analytical resolution, and real-time monitoring capacity. Although probe-based sensing can overcome these limitations, typical non-specific probes lack analytical resolution and provide little to no information regarding which parts of the protein structure have been collapsed. To meet these analytical demands, we generated biosensing probes derived from artificial proteins that could specifically recognize the higher-order structural changes in antibodies at the protein domain level. Biopanning of phage-displayed protein libraries generated artificial proteins that bound to a denatured antibody domain, but not its natively folded structure, with nanomolar affinity. The protein probes not only recognized the higher-order structural changes in intact IgGs but also distinguished between the denatured antibody domains. These domain-specific probes were used to generate response contour plots to visualize the antibody denaturation caused by various process parameters, such as pH, temperature, and holding time for acid elution and virus inactivation. These protein probes can be combined with established analytical techniques, such as surface plasmon resonance for real-time monitoring or plate-based assays for high-throughput analysis, to aid in the development of new analytical technologies for the process optimization and monitoring of antibody manufacturing.
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Affiliation(s)
- Hideki Watanabe
- Biomedical Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba, Ibaraki, 305-8566, Japan
| | - Naoko Hayashida
- Biomedical Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba, Ibaraki, 305-8566, Japan; Department of Computational Biology and Medical Sciences, Graduate School of Frontier Sciences, University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba, 277-8562, Japan
| | - Megumi Sato
- Biomedical Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba, Ibaraki, 305-8566, Japan
| | - Shinya Honda
- Biomedical Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba, Ibaraki, 305-8566, Japan; Department of Computational Biology and Medical Sciences, Graduate School of Frontier Sciences, University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba, 277-8562, Japan.
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Trossmann VT, Heltmann-Meyer S, Amouei H, Wajant H, Horch RE, Steiner D, Scheibel T. Recombinant Spider Silk Bioinks for Continuous Protein Release by Encapsulated Producer Cells. Biomacromolecules 2022; 23:4427-4437. [PMID: 36067476 DOI: 10.1021/acs.biomac.2c00971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Targeted therapies using biopharmaceuticals are of growing clinical importance in disease treatment. Currently, there are several limitations of protein-based therapeutics (biologicals), including suboptimal biodistribution, lack of stability, and systemic side effects. A promising approach to overcoming these limitations could be a therapeutic cell-loaded 3D construct consisting of a suitable matrix component that harbors producer cells continuously secreting the biological of interest. Here, the recombinant spider silk proteins eADF4(C16), eADF4(C16)-RGD, and eADF4(C16)-RGE have been processed together with HEK293 producer cells stably secreting the highly traceable reporter biological TNFR2-Fc-GpL, a fusion protein consisting of the extracellular domain of TNFR2, the Fc domain of human IgG1, and the luciferase of Gaussia princeps as a reporter domain. eADF4(C16) and eADF4(C16)-RGD hydrogels provide structural and mechanical support, promote HEK293 cell growth, and allow fusion protein production by the latter. Bioink-captured HEK293 producer cells continuously release functional TNFR2-Fc-GpL over 14 days. Thus, the combination of biocompatible, printable spider silk bioinks with drug-producing cells is promising for generating implantable 3D constructs for continuous targeted therapy.
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Affiliation(s)
- Vanessa T Trossmann
- Lehrstuhl Biomaterialien, Fakultät für Ingenieurswissenschaften, Universität Bayreuth, Prof.-Rüdiger-Bormann-Str. 1, Bayreuth 95447, Germany
| | - Stefanie Heltmann-Meyer
- Department of Plastic and Hand Surgery and Laboratory for Tissue Engineering and Regenerative Medicine, University Hospital of Erlangen, Friedrich-Alexander-University Erlangen-Nuremberg (FAU), Krankenhaus-Str. 12, Erlangen 91054, Germany
| | - Hanna Amouei
- Division of Molecular Internal Medicine, Department of Internal Medicine II, University Hospital of Würzburg, Grombühl-Str. 12, Würzburg 97080, Germany
| | - Harald Wajant
- Division of Molecular Internal Medicine, Department of Internal Medicine II, University Hospital of Würzburg, Grombühl-Str. 12, Würzburg 97080, Germany
| | - Raymund E Horch
- Department of Plastic and Hand Surgery and Laboratory for Tissue Engineering and Regenerative Medicine, University Hospital of Erlangen, Friedrich-Alexander-University Erlangen-Nuremberg (FAU), Krankenhaus-Str. 12, Erlangen 91054, Germany
| | - Dominik Steiner
- Department of Plastic and Hand Surgery and Laboratory for Tissue Engineering and Regenerative Medicine, University Hospital of Erlangen, Friedrich-Alexander-University Erlangen-Nuremberg (FAU), Krankenhaus-Str. 12, Erlangen 91054, Germany
| | - Thomas Scheibel
- Lehrstuhl Biomaterialien, Fakultät für Ingenieurswissenschaften, Universität Bayreuth, Prof.-Rüdiger-Bormann-Str. 1, Bayreuth 95447, Germany.,Bayreuther Zentrum für Kolloide und Grenzflächen (BZKG), Bayerisches Polymerinstitut (BPI), Bayreuther Zentrum für Molekulare Biowissenschaften (BZMB), Bayreuther Materialzentrum (BayMAT), Universität Bayreuth, Universitäts-Str. 30, Bayreuth 95447, Germany
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Osanai-Futahashi M, Uchino K, Tamura T, Sezutsu H. The red egg gene as a novel effective egg color marker for silkworm transgenesis. INSECT BIOCHEMISTRY AND MOLECULAR BIOLOGY 2022; 143:103728. [PMID: 35085769 DOI: 10.1016/j.ibmb.2022.103728] [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: 08/23/2021] [Revised: 01/22/2022] [Accepted: 01/22/2022] [Indexed: 06/14/2023]
Abstract
Ommochromes are major pigments involved in coloration of eggs, eyes, and epidermis of arthropods. The recessive homozygous of egg and eye color mutant of Bombyx mori, red egg (re), exhibits red eggs and dark red eyes instead of normal purplish-brown eggs and black eyes, due to a defect in ommochrome pigment synthesis. The gene responsible for the re mutant is a major facilitator superfamily transporter gene, Bm-re. Here, we demonstrate that the re phenotype can be effectively rescued by an intact Bm-re gene driven by the Bombyx Actin A3 promoter or the baculovirus Immediate Early 1 promoter, indicating that the Bm-re gene can be used as a marker gene for visual screening of transgenic silkworms. The coloration of eggs rescued by the Bm-re transgene could be distinguished from that of host mutant eggs from diapausing period through head pigmentation stage. This allows transgenic screening at earlier embryonic stages and over a longer time period compared to conventional 3xP3 fluorescent markers, without requiring the skill and equipment to detect stemmata fluorescence.
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Affiliation(s)
- Mizuko Osanai-Futahashi
- Graduate School of Science and Engineering, Ibaraki University, 2-1-1, Bunkyo, Mito, Ibaraki, 310-8512, Japan; Institute of Agrobiological Sciences, National Agriculture and Food Research Organization (NARO), 1-2, Owashi, Tsukuba, Ibaraki, 305-8634, Japan.
| | - Keiro Uchino
- Institute of Agrobiological Sciences, National Agriculture and Food Research Organization (NARO), 1-2, Owashi, Tsukuba, Ibaraki, 305-8634, Japan
| | - Toshiki Tamura
- Silk Science and Technology Research Institute, 1053, Iikura, Ami-machi, Ibaraki, 300-0324, Japan
| | - Hideki Sezutsu
- Institute of Agrobiological Sciences, National Agriculture and Food Research Organization (NARO), 1-2, Owashi, Tsukuba, Ibaraki, 305-8634, Japan
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Cliff CL, Williams BM, Chadjichristos CE, Mouritzen U, Squires PE, Hills CE. Connexin 43: A Target for the Treatment of Inflammation in Secondary Complications of the Kidney and Eye in Diabetes. Int J Mol Sci 2022; 23:600. [PMID: 35054783 PMCID: PMC8776095 DOI: 10.3390/ijms23020600] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Revised: 01/03/2022] [Accepted: 01/04/2022] [Indexed: 02/06/2023] Open
Abstract
Of increasing prevalence, diabetes is characterised by elevated blood glucose and chronic inflammation that precedes the onset of multiple secondary complications, including those of the kidney and the eye. As the leading cause of end stage renal disease and blindness in the working population, more than ever is there a demand to develop clinical interventions which can both delay and prevent disease progression. Connexins are membrane bound proteins that can form pores (hemichannels) in the cell membrane. Gated by cellular stress and injury, they open under pathophysiological conditions and in doing so release 'danger signals' including adenosine triphosphate into the extracellular environment. Linked to sterile inflammation via activation of the nod-like receptor protein 3 inflammasome, targeting aberrant hemichannel activity and the release of these danger signals has met with favourable outcomes in multiple models of disease, including secondary complications of diabetes. In this review, we provide a comprehensive update on those studies which document a role for aberrant connexin hemichannel activity in the pathogenesis of both diabetic eye and kidney disease, ahead of evaluating the efficacy of blocking connexin-43 specific hemichannels in these target tissues on tissue health and function.
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Affiliation(s)
- Chelsy L. Cliff
- Joseph Banks Laboratories, School of Life, Sciences University of Lincoln, Lincoln LN6 7DL, UK; (C.L.C.); (B.M.W.); (P.E.S.)
| | - Bethany M. Williams
- Joseph Banks Laboratories, School of Life, Sciences University of Lincoln, Lincoln LN6 7DL, UK; (C.L.C.); (B.M.W.); (P.E.S.)
| | - Christos E. Chadjichristos
- National Institutes for Health and Medical Research, UMR-S1155, Batiment Recherche, Tenon Hospital, 4 Rue de la Chine, 75020 Paris, France;
| | - Ulrik Mouritzen
- Ciana Therapeutics, Ole Maaloes Vej 3, 2200 Copenhagen N, Denmark;
| | - Paul E. Squires
- Joseph Banks Laboratories, School of Life, Sciences University of Lincoln, Lincoln LN6 7DL, UK; (C.L.C.); (B.M.W.); (P.E.S.)
| | - Claire E. Hills
- Joseph Banks Laboratories, School of Life, Sciences University of Lincoln, Lincoln LN6 7DL, UK; (C.L.C.); (B.M.W.); (P.E.S.)
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