Chromatographic Monoliths for High-Throughput Immunoaffinity Isolation of Transferrin from Human Plasma (CROSBI ID 265102)
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Trbojević-Akmačić, Irena ; Nemec, Blaž ; Vidic, Urška ; Malić, Suzana ; Miklić, Karmela ; Černigoj, Urh ; Vidič, Jana ; Lendero Krajnc, Nika ; Štrancar, Aleš ; Lauc, Gordan ; Lenac Roviš, Tihana ; Pučić-Baković, Maja
engleski
Chromatographic Monoliths for High-Throughput Immunoaffinity Isolation of Transferrin from Human Plasma
Changes in protein glycosylation are related to different diseases and have a potential as diagnostic and prognostic disease biomarkers. Transferrin (Tf) glycosylation changes are common marker for congenital disorders of glycosylation. However, biological interindividual variability of Tf N-glycosylation and genes involved in glycosylation regulation are not known. Therefore, high-throughput Tf isolation method and large scale glycosylation studies are needed in order to address these questions. Due to their unique chromatographic properties, the use of chromatographic monoliths enables very fast analysis cycle, thus significantly increasing sample preparation throughput. Here, we are describing characterization of novel immunoaffinity-based monolithic columns in a 96- well plate format for specific high-throughput purification of human Tf from blood plasma. We optimized the isolation and glycan preparation procedure for subsequent ultra performance liquid chromatography (UPLC) analysis of Tf N- glycosylation and managed to increase the sensitivity for approximately three times compared to initial experimental conditions, with very good reproducibility.
high-throughput ; immunoaffinity chromatography ; monoliths ; N-glycosylation ; oriented antibody immobilization ; transferrin
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Povezanost rada
Biologija, Biotehnologija, Kemija