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Gstöttner et al. used SmartEnzymes for their CE-MS analysis of highly homologous bispecifics, one of them containing LALA mutations. Bispecific antibodies (BsAb) offer an attractive alternative to traditional mAbs since they can bind to two different epitopes simultaneously. Because they are composed of four different peptide chains, rather than two, they are subject to…
We are excited to announce that QED Bioscience and Genovis have joined together and combined their strengths to provide top-quality research tools to scientists across the globe. QED Bioscience is a US company based in San Diego that has been designing and manufacturing antibodies for 25 years, providing superior antibody products and services to…
The Tn-antigen is characterized by the presence of a single N-Acetylgalactosamine (GalNAc) residue linked to serine or threonine residues on proteins. It is an immature glycoform without extension to form any of the common O-glycan core structures. The Tn antigen is a hallmark of many forms of cancer and rarely found in healthy tissue. Mapping and comparing Tn-antigens on proteins is therefore…
Researchers at Strasbourg University and Pierre-Fabre highlight the benefits of a middle-level approach to IgG isotype fingerprinting using native ion-mobility mass spectrometry. In this new article by Botzanowski et al., a middle-level approach was compared to more classical intact methods for distinguishing IgG isotypes using native ion mobility mass spectrometry. Ion mobility mass…
Scientists at the University of Geneva and CNRS present site-specific ADCs generated using the GlyCLICK technology and an analytical middle-up LC-HRMS workflow as a potential core module for ADC development. Antibody-drug conjugates (ADCs) are efficient therapeutic agents that possess the cell-targeting properties of monoclonal antibodies combined with the potency of cytotoxic drugs. Early generation…
Monoclonal antibodies (mAb) are used in various treatments and new potential targets continue to arise. To ensure a high specificity of the antibody to the intended antigen each mAb needs to be well characterized since they are often heterogeneous. In this paper, Giorgetti et al. combined bottom-up, middle-level and intact level analysis to get the…
Scientists at NIBRT in Dublin together with scientists at the University of Manitoba, Winnipeg, have investigated the effect of two different methods to control the level of fucosylation of a model antibody during expression in CHO cells. Production of biopharmaceuticals in mammalian cells requires that critical quality attributes are controlled for safety and therapeutic…
Genovis SmartEnzyme IgGZERO was used in this recent study by researches from the University of Pennsylvania and the Philadelphia Children’s Hospital. Sepsis is a dysregulated immune response to an infection that leads to very high levels of inflammation resulting in tissue damage and potential for multiorgan failure. It therefore leads to a high rate…
Scientists from the University of Delaware demonstrate the use of GlycINATOR for studying transcytosis of IgG in an in vitro model of the blood-brain barrier. Brain endothelial cells (BECs) are important structural components of the blood-brain barrier with a unique physiology that restricts permeability of blood-borne molecules such as therapeutic antibodies to the brain.…
Genovis continues operation and remain committed to serve our customers during the ongoing pandemic crisis. Manufacturing and distribution of the Genovis SmartEnzymes™ are running according to our business continuity plan to meet our customers’ needs and to secure supply. We are monitoring the situation carefully and will notify you immediately if we experience disruptions…
Genentech used FabRICATOR®-HPLC to develop a fast and automated 3D LC-MS workflow for the characterization of glycosylation on therapeutic antibodies. The glycosylation profile is a critical quality attribute of biopharmaceuticals including antibodies. This heterogenous quality attribute can be tackled using a range of different analytical technologies including separation of released glycans , intact glycoprotein…
Scientists at Minerva Imaging demonstrate the use of FabRICATOR® to generate a 64Cu-labeled F(ab’)2 PET-tracer for the detection of changes in T Cell response to combined radiation and immunoblockade therapy. Current immunotherapy response-evaluation criteria are limited in discriminating responsive patients eligible for immunotherapy from non-responders. Accurate evaluations of progression are limited by pseudo-progression, a…
