Sara Tengattini

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In this study, an HPLC HILIC-UV method was developed for the analysis of intact neo-glycoproteins. During method development the experimental conditions evaluated involved different HILIC columns (TSKgel Amide-80 and ZIC-pHILIC), and water-acetonitrile mixtures containing various types of acids and salts. The final selected method was based on a TSKgel(More)
Hereby we describe a pilot study for the rational design and synthesis of a glycoconjugate vaccine against Tuberculosis (TB) by site-specific coupling of well-defined glycans to non-antigenic amino acids in a selected protein carrier. A combination of ESI-MS and LC-MS analytical methods was applied for the systematic characterization of the reactivity of(More)
Improved methods for detailed characterization of complex glycoproteins are required in the growing sector of biopharmaceuticals. Hydrophilic interaction liquid chromatography (HILIC) coupled to high resolution (HR) time-of-flight mass spectrometric (TOF-MS) detection was examined for the characterization of intact neo-glycoproteins prepared by chemical(More)
A capillary electrophoresis-mass spectrometry (CE-MS) method was developed for the characterization and integrity assessment of the Mycobacterium tuberculosis (MTB) antigens TB10.4 and Ag85B and their chemically produced glycoconjugates, which are glycovaccine candidates against tuberculosis (TB). In order to prevent protein adsorption to the inner(More)
Tuberculosis is still one of the most deadly infectious diseases worldwide, and the use of conjugated antigens, obtained by combining antigenic oligosaccharides, such as the lipoarabinomannane (LAM), with antigenic proteins from Mycobacterium tuberculosis (MTB), has been proposed as a new strategy for developing efficient vaccines. In this work, we(More)
Proteins and glycoproteins with therapeutic activity are susceptible to environmental factors, which can cause their degradation and the loss of their activity. Thus, the maintenance of their stability during the production process is a critical factor. In this work, a simple and rapid hydrophilic interaction liquid chromatography HILIC-UV method was(More)
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