Article (Scientific journals)
A New Alternative Tool to Analyse Glycosylation in Monoclonal Antibodies Based on Drop-Coating Deposition Raman imaging: A Proof of Concept
Hamla, Sabrina; Sacre, Pierre-Yves; Derenne, Allison et al.
2022In Molecules, 27 (14), p. 4405
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Keywords :
monoclonal antibodies (mAbs); drop-coating deposition Raman imaging (DCDR); multivariate curve resolution-alternating least square (MCR-ALS); singular value decomposition (SVD); nonlinear support vector regression (SVR); P-vect
Abstract :
[en] Glycosylation is considered a critical quality attribute of therapeutic proteins as it affects their stability, bioactivity, and safety. Hence, the development of analytical methods able to characterize the composition and structure of glycoproteins is crucial. Existing methods are time consuming, expensive, and require significant sample preparation, which can alter the robustness of the analyses. In this context, we developed a fast, direct, and simple drop-coating deposition Raman imaging (DCDR) method combined with multivariate curve resolution alternating least square (MCR-ALS) to analyze glycosylation in monoclonal antibodies (mAbs). A database of hyperspectral Raman imaging data of glycoproteins was built, and the glycoproteins were characterized by LC-FLR-MS as a reference method to determine the composition in glycans and monosaccharides. The DCDR method was used and allowed the separation of excipient and protein by forming a “coffee ring”. MCR-ALS analysis was performed to visualize the distribution of the compounds in the drop and to extract the pure spectral components. Further, the strategy of SVD-truncation was used to select the number of components to resolve by MCR-ALS. Raman spectra were processed by support vector regression (SVR). SVR models showed good predictive performance in terms of RMSECV, R2CV.
Disciplines :
Biotechnology
Author, co-author :
Hamla, Sabrina ;  Université de Liège - ULiège > Unités de recherche interfacultaires > Centre Interdisciplinaire de Recherche sur le Médicament (CIRM)
Sacre, Pierre-Yves  ;  Université de Liège - ULiège > Unités de recherche interfacultaires > Centre Interdisciplinaire de Recherche sur le Médicament (CIRM)
Derenne, Allison;  Center for Structural Biology and Bioinformatics, Laboratory for the Structure and Function of Biological Membranes, ULB, Campus Plaine CP206/02, 1050 Brussels, Belgium
Cowper, Ben;  National Institute for Biological Standards and Control, Blanche Lane, South Mimms, Potters Bar, Hertfordshire EN6 3QG, UK
Goormaghtigh, Erik;  Center for Structural Biology and Bioinformatics, Laboratory for the Structure and Function of Biological Membranes, ULB, Campus Plaine CP206/02, 1050 Brussels, Belgium
Hubert, Philippe  ;  Université de Liège - ULiège > Unités de recherche interfacultaires > Centre Interdisciplinaire de Recherche sur le Médicament (CIRM)
Ziemons, Eric  ;  Université de Liège - ULiège > Unités de recherche interfacultaires > Centre Interdisciplinaire de Recherche sur le Médicament (CIRM)
Language :
English
Title :
A New Alternative Tool to Analyse Glycosylation in Monoclonal Antibodies Based on Drop-Coating Deposition Raman imaging: A Proof of Concept
Publication date :
09 July 2022
Journal title :
Molecules
eISSN :
1420-3049
Publisher :
MDPI AG
Volume :
27
Issue :
14
Pages :
4405
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
Service public de Wallonie - DGO6 - WALinnov 2017
Available on ORBi :
since 11 July 2022

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