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Yousefi-Darani A, Paquet-Durand O, Von Wrochem A, Classen J, Tränkle J, Mertens M, Snelders J, Chotteau V, Mäkinen M, Handl A, Kadisch M, Lang D, Dumas P, Hitzmann B. Generic Chemometric Models for Metabolite Concentration Prediction Based on Raman Spectra. Sensors (Basel) 2022; 22:5581. [PMID: 35898085 PMCID: PMC9332195 DOI: 10.3390/s22155581] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 07/20/2022] [Accepted: 07/22/2022] [Indexed: 06/15/2023]
Abstract
Chemometric models for on-line process monitoring have become well established in pharmaceutical bioprocesses. The main drawback is the required calibration effort and the inflexibility regarding system or process changes. So, a recalibration is necessary whenever the process or the setup changes even slightly. With a large and diverse Raman dataset, however, it was possible to generate generic partial least squares regression models to reliably predict the concentrations of important metabolic compounds, such as glucose-, lactate-, and glutamine-indifferent CHO cell cultivations. The data for calibration were collected from various cell cultures from different sites in different companies using different Raman spectrophotometers. In testing, the developed “generic” models were capable of predicting the concentrations of said compounds from a dilution series in FMX-8 mod medium, as well as from an independent CHO cell culture. These spectra were taken with a completely different setup and with different Raman spectrometers, demonstrating the model flexibility. The prediction errors for the tests were mostly in an acceptable range (<10% relative error). This demonstrates that, under the right circumstances and by choosing the calibration data carefully, it is possible to create generic and reliable chemometric models that are transferrable from one process to another without recalibration.
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Affiliation(s)
- Abdolrahim Yousefi-Darani
- Department of Process Analytics und Cereal Science, Institute for Food Science and Biotechnology, University of Hohenheim, Garbenstr. 23, 70599 Stuttgart, Germany; (A.Y.-D.); (A.V.W.); (B.H.)
| | - Olivier Paquet-Durand
- Department of Process Analytics und Cereal Science, Institute for Food Science and Biotechnology, University of Hohenheim, Garbenstr. 23, 70599 Stuttgart, Germany; (A.Y.-D.); (A.V.W.); (B.H.)
| | - Almut Von Wrochem
- Department of Process Analytics und Cereal Science, Institute for Food Science and Biotechnology, University of Hohenheim, Garbenstr. 23, 70599 Stuttgart, Germany; (A.Y.-D.); (A.V.W.); (B.H.)
| | - Jens Classen
- Bayer AG, L Kaiser-Wilhelm-Allee 1, 51373 Leverkusen, Germany; (J.C.); (J.T.)
| | - Jens Tränkle
- Bayer AG, L Kaiser-Wilhelm-Allee 1, 51373 Leverkusen, Germany; (J.C.); (J.T.)
| | - Mario Mertens
- Sanofi, Cipalstraat 8, 2440 Geel, Belgium; (M.M.); (J.S.)
| | | | - Veronique Chotteau
- Department of Industrial Biotechnology, School of Engineering Sciences in Chemistry, Biotechnology and Health, Royal Institute of Technology (KTH), 109 06 Stockholm, Sweden; (V.C.); (M.M.)
| | - Meeri Mäkinen
- Department of Industrial Biotechnology, School of Engineering Sciences in Chemistry, Biotechnology and Health, Royal Institute of Technology (KTH), 109 06 Stockholm, Sweden; (V.C.); (M.M.)
| | - Alina Handl
- Rentschler Biopharma SE, Erwin-Rentschler-Street 21, 88471 Laupheim, Germany; (A.H.); (M.K.); (D.L.)
| | - Marvin Kadisch
- Rentschler Biopharma SE, Erwin-Rentschler-Street 21, 88471 Laupheim, Germany; (A.H.); (M.K.); (D.L.)
| | - Dietmar Lang
- Rentschler Biopharma SE, Erwin-Rentschler-Street 21, 88471 Laupheim, Germany; (A.H.); (M.K.); (D.L.)
| | | | - Bernd Hitzmann
- Department of Process Analytics und Cereal Science, Institute for Food Science and Biotechnology, University of Hohenheim, Garbenstr. 23, 70599 Stuttgart, Germany; (A.Y.-D.); (A.V.W.); (B.H.)
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Singhal A, Grögli P, Geiser B, Handl A. A Briggs-Rauscher Reaction-based Spectrometric Assay to Determine Antioxidant Content in Complex Matrices in Low Technology Environments. Chimia (Aarau) 2021; 75:74-79. [PMID: 33637152 DOI: 10.2533/chimia.2021.74] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
The Briggs-Rauscher (BR) reaction is free radical based where the kinetics of formation of different iodide species leads to potentiometric and color oscillations. These oscillations were monitored in this study using a UV/Vis attenuated total reflection probe to develop an assay to measure the antioxidant content in complex matrices. The periodicity of the BR reaction was found to be very consistent (range 24-25 seconds, n = 16). Adding various amounts of ascorbic acid, a well-known antioxidant, led to an inhibition of the reaction with a linear calibration curve of antioxidant periodicity time (APT, r 2 > 0.99). The validity of this test in complex matrices was studied by determining the APT of nine fruits, and the resulting antioxidant capacity in ascorbic acid equivalency was calculated. The results generated by this assay were found be accurate through comparison with the well-established FRAP assay. These results show that visual or spectrometric monitoring of BR reaction can be used as a reliable, quick, and inexpensive alternative to more established assays with the added advantage that values generated from this assay is at pH 2 which is similar to that in the human stomach.
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Affiliation(s)
- Ankit Singhal
- International School Basel, Fleischbachstrasse 2, CH-4153 Reinach, Switzerland;,
| | - Philipp Grögli
- Synthetic Molecules Technical Development, F. Hoffmann - La Roche Ltd, Grenzacherstrasse 124, CH-4070 Basel, Switzerland
| | - Bernd Geiser
- Synthetic Molecules Technical Development, F. Hoffmann - La Roche Ltd, Grenzacherstrasse 124, CH-4070 Basel, Switzerland
| | - Alina Handl
- Synthetic Molecules Technical Development, F. Hoffmann - La Roche Ltd, Grenzacherstrasse 124, CH-4070 Basel, Switzerland
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Ladel S, Maigler F, Flamm J, Schlossbauer P, Handl A, Hermann R, Herzog H, Hummel T, Mizaikoff B, Schindowski K. Impact of Glycosylation and Species Origin on the Uptake and Permeation of IgGs through the Nasal Airway Mucosa. Pharmaceutics 2020; 12:E1014. [PMID: 33114132 PMCID: PMC7690786 DOI: 10.3390/pharmaceutics12111014] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2020] [Revised: 10/18/2020] [Accepted: 10/21/2020] [Indexed: 12/31/2022] Open
Abstract
Although we have recently reported the involvement of neonatal Fc receptor (FcRn) in intranasal transport, the transport mechanisms are far from being elucidated. Ex vivo porcine olfactory tissue, primary cells from porcine olfactory epithelium (OEPC) and the human cell line RPMI 2650 were used to evaluate the permeation of porcine and human IgG antibodies through the nasal mucosa. IgGs were used in their wild type and deglycosylated form to investigate the impact of glycosylation. Further, the expression of FcRn and Fc-gamma receptor (FCGR) and their interaction with IgG were analyzed. Comparable permeation rates for human and porcine IgG were observed in OEPC, which display the highest expression of FcRn. Only traces of porcine IgGs could be recovered at the basolateral compartment in ex vivo olfactory tissue, while human IgGs reached far higher levels. Deglycosylated human IgG showed significantly higher permeation in comparison to the wild type in RPMI 2650 and OEPC, but insignificantly elevated in the ex vivo model. An immunoprecipitation with porcine primary cells and tissue identified FCGR2 as a potential interaction partner in the nasal mucosa. Glycosylation sensitive receptors appear to be involved in the uptake, transport, but also degradation of therapeutic IgGs in the airway epithelial layer.
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Affiliation(s)
- Simone Ladel
- Institute of Applied Biotechnology, University of Applied Science Biberach, Hubertus-Liebrecht Straße 35, 88400 Biberach, Germany; (S.L.); (F.M.); (J.F.); (P.S.); (A.H.); (R.H.); (H.H.)
- Faculty of Natural Science, University of Ulm, Albert-Einstein-Allee 11, 89081 Ulm, Germany
| | - Frank Maigler
- Institute of Applied Biotechnology, University of Applied Science Biberach, Hubertus-Liebrecht Straße 35, 88400 Biberach, Germany; (S.L.); (F.M.); (J.F.); (P.S.); (A.H.); (R.H.); (H.H.)
- Faculty of Natural Science, University of Ulm, Albert-Einstein-Allee 11, 89081 Ulm, Germany
| | - Johannes Flamm
- Institute of Applied Biotechnology, University of Applied Science Biberach, Hubertus-Liebrecht Straße 35, 88400 Biberach, Germany; (S.L.); (F.M.); (J.F.); (P.S.); (A.H.); (R.H.); (H.H.)
- Faculty of Natural Science, University of Ulm, Albert-Einstein-Allee 11, 89081 Ulm, Germany
| | - Patrick Schlossbauer
- Institute of Applied Biotechnology, University of Applied Science Biberach, Hubertus-Liebrecht Straße 35, 88400 Biberach, Germany; (S.L.); (F.M.); (J.F.); (P.S.); (A.H.); (R.H.); (H.H.)
| | - Alina Handl
- Institute of Applied Biotechnology, University of Applied Science Biberach, Hubertus-Liebrecht Straße 35, 88400 Biberach, Germany; (S.L.); (F.M.); (J.F.); (P.S.); (A.H.); (R.H.); (H.H.)
- Faculty of Natural Science, University of Ulm, Albert-Einstein-Allee 11, 89081 Ulm, Germany
| | - Rebecca Hermann
- Institute of Applied Biotechnology, University of Applied Science Biberach, Hubertus-Liebrecht Straße 35, 88400 Biberach, Germany; (S.L.); (F.M.); (J.F.); (P.S.); (A.H.); (R.H.); (H.H.)
| | - Helena Herzog
- Institute of Applied Biotechnology, University of Applied Science Biberach, Hubertus-Liebrecht Straße 35, 88400 Biberach, Germany; (S.L.); (F.M.); (J.F.); (P.S.); (A.H.); (R.H.); (H.H.)
- Faculty of Natural Science, University of Ulm, Albert-Einstein-Allee 11, 89081 Ulm, Germany
| | - Thomas Hummel
- Smell & Taste Clinic, Department of Otorhinolaryngology, TU Dresden, Fetscherstraße 74, 01307 Dresden, Germany;
| | - Boris Mizaikoff
- Institute of Analytical and Bioanalytical Chemistry, University of Ulm, Albert-Einstein-Allee 11, 89081 Ulm, Germany;
| | - Katharina Schindowski
- Institute of Applied Biotechnology, University of Applied Science Biberach, Hubertus-Liebrecht Straße 35, 88400 Biberach, Germany; (S.L.); (F.M.); (J.F.); (P.S.); (A.H.); (R.H.); (H.H.)
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Handl A, López-Lorente ÁI, Handrick R, Mizaikoff B, Hesse F. Infrared attenuated total reflection and 2D fluorescence spectroscopy for the discrimination of differently aggregated monoclonal antibodies. Analyst 2019; 144:6334-6341. [PMID: 31553337 DOI: 10.1039/c9an00424f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Antibody aggregates may occur as undesirable by-products during the manufacturing process of biopharmaceutical proteins since parameters such as pH, temperature, ionic strength, protein concentration, oxygen, and shear forces can lead to aggregate formation. These aggregates have to be detected, quantified and removed cost extensively, since they may reduce the safety and efficacy of the product. Protein aggregates can range from small soluble dimers up to large visible agglomerates. Differently aggregated antibody samples were characterized for their soluble and insoluble aggregate concentration by size exclusion chromatography and fluorescence microscopy, respectively. The samples exhibited a high diversity of protein aggregates, which varied in amount, size and shape. For secondary structure characterization, infrared attenuated total reflection (IR-ATR) and two-dimensional fluorescence (2D-FL) spectroscopy were applied. Using direct spectroscopy, only marginal differences of various antibody aggregates were evident. However, using appropriate chemometric strategies, the evaluation of IR-ATR and 2D-FL spectra yielded the discrimination of differently aggregated antibody samples with yet unprecedented precision.
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Affiliation(s)
- Alina Handl
- Biberach University, Institute of Applied Biotechnology, Hubertus-Liebrecht-Str. 35, 88400 Biberach, Germany.
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Röhm M, Handl A, König M, Mavoungou C, Handrick R, Schindowski K. Data of rational process optimization for the production of a full IgG and its Fab fragment from hybridoma cells. Data Brief 2016; 8:426-35. [PMID: 27366780 PMCID: PMC4910301 DOI: 10.1016/j.dib.2016.05.067] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2015] [Revised: 05/16/2016] [Accepted: 05/25/2016] [Indexed: 11/25/2022] Open
Abstract
This data article focuses on the production of monoclonal antibodies (mAb) and their fragments Fab and F(ab′)2. Here, we present the data of an optimization protocol to improve the product yield of a hybridoma cell process using a Design of Experiment (DoE) strategy. Furthermore, the data of the evaluated conditions were used to test feeding strategies in shake flasks. They were verified in controlled 2 L fed-batch bioreactor processes. Supplementing the culture medium with human insulin-like growth factor-I (IGF-I) and Pluronic F-68, as well as a nutrient rich additive for fed-batch, resulted in improved cell growth correlating with a 7 day elongated process time and a 4.5 fold higher product titer. Finally, a rapid Fab generation protocol and the respective data are presented using different papain digestion and a camelid anti-kappa light chain VHH affinity ligand.
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Affiliation(s)
- Martina Röhm
- Institute of Applied Biotechnology, University of Applied Sciences Biberach, Hubertus-Liebrecht-Strasse 35, 88400 Biberach, Germany; University of Ulm, Faculty of Medicine, Albert-Einstein-Allee 11, 89081 Ulm, Germany
| | - Alina Handl
- Institute of Applied Biotechnology, University of Applied Sciences Biberach, Hubertus-Liebrecht-Strasse 35, 88400 Biberach, Germany
| | - Maria König
- Institute of Applied Biotechnology, University of Applied Sciences Biberach, Hubertus-Liebrecht-Strasse 35, 88400 Biberach, Germany
| | - Chrystelle Mavoungou
- Institute of Applied Biotechnology, University of Applied Sciences Biberach, Hubertus-Liebrecht-Strasse 35, 88400 Biberach, Germany
| | - René Handrick
- Institute of Applied Biotechnology, University of Applied Sciences Biberach, Hubertus-Liebrecht-Strasse 35, 88400 Biberach, Germany
| | - Katharina Schindowski
- Institute of Applied Biotechnology, University of Applied Sciences Biberach, Hubertus-Liebrecht-Strasse 35, 88400 Biberach, Germany
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Handl A, Mahlberg T, Norling S, Gredebäck G. Facing still faces: What visual cues affect infants’ observations of others? Infant Behav Dev 2013; 36:583-6. [DOI: 10.1016/j.infbeh.2013.06.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2013] [Revised: 05/29/2013] [Accepted: 06/07/2013] [Indexed: 10/26/2022]
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Handl A, Přibram R. Über die Zähigkeit der Flüssigkeiten und ihre Beziehung zur chemischen Konstitution. Z PHYS CHEM 1892. [DOI: 10.1515/zpch-1892-0943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Handl A, Přibram R. Über die Zähigkeit der Flüssigkeiten und ihre Beziehung zur chemischen Konstitution. Z PHYS CHEM 1892. [DOI: 10.1515/zpch-1892-0143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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