PMID- 32642835 OWN - NLM STAT- MEDLINE DCOM- 20210423 LR - 20210628 IS - 1618-2650 (Electronic) IS - 1618-2642 (Linking) VI - 412 IP - 23 DP - 2020 Sep TI - Identification and semi-relative quantification of intact glycoforms by nano-LC-(Orbitrap)MS: application to the alpha-subunit of human chorionic gonadotropin and follicle-stimulating hormone. PG - 5729-5741 LID - 10.1007/s00216-020-02794-3 [doi] AB - Human chorionic gonadotropin (hCG) and follicle-stimulating hormone (FSH) belong to the family of glycoprotein polypeptide hormones called gonadotropins. They are heterodimers sharing the alpha-subunit structure that has 2 N-glycosylation sites. A method based on nano-reversed-phase liquid chromatography coupled to high-resolution mass spectrometry with an Orbitrap analyzer was developed for the first time to characterize the glycosylation state of the alpha-subunit at the intact level. A recombinant hCG-based drug, Ovitrelle(R), was analyzed. This method combined with an appropriate data treatment allowed the detection of not only the major isoforms but also the minority ones with a high mass accuracy. More than 30 hCGalpha glycoforms were detected without overlapping of the isotopic patterns. The figures of merit of the method were assessed. The relative standard deviations (RSDs) of the retention time ranged between 0.1 and 6.08% (n = 3), with an average of 0.4%. The RSDs of the peak area measured on the extracted ion chromatogram of each glycoform are below 38% (n = 3), with an average of 16%, thus allowing semi-relative quantification. The ability to accurately profile glycosylated variants of hCGalpha was next demonstrated by comparing qualitatively and semi-quantitatively 3 batches of Ovitrelle(R). The method was also used to analyze 3 batches of a recombinant FSH-based drug, Puregon(R), and 30 FSHalpha glycoforms were detected and semi-quantified. This demonstrates the high potential of this method for fast quality control or comparison of the glycosylation of glycoprotein-based pharmaceutical preparations. Graphical abstract. FAU - Al Matari, Amira AU - Al Matari A AD - Laboratory of Analytical, Bioanalytical Sciences and Miniaturization, Chemistry, Biology and Innovation (CBI) UMR 8231, ESPCI Paris PSL, CNRS, PSL Research University, 10 rue Vauquelin, 75005, Paris, France. FAU - Combes, Audrey AU - Combes A AD - Laboratory of Analytical, Bioanalytical Sciences and Miniaturization, Chemistry, Biology and Innovation (CBI) UMR 8231, ESPCI Paris PSL, CNRS, PSL Research University, 10 rue Vauquelin, 75005, Paris, France. FAU - Camperi, Julien AU - Camperi J AD - Laboratory of Analytical, Bioanalytical Sciences and Miniaturization, Chemistry, Biology and Innovation (CBI) UMR 8231, ESPCI Paris PSL, CNRS, PSL Research University, 10 rue Vauquelin, 75005, Paris, France. FAU - Fournier, Thierry AU - Fournier T AD - Universite de Paris, INSERM, <>, 3PHM, 75006, Paris, France. FAU - Pichon, Valerie AU - Pichon V AD - Laboratory of Analytical, Bioanalytical Sciences and Miniaturization, Chemistry, Biology and Innovation (CBI) UMR 8231, ESPCI Paris PSL, CNRS, PSL Research University, 10 rue Vauquelin, 75005, Paris, France. AD - Sorbonne Universite, 4 place Jussieu, 75005, Paris, France. FAU - Delaunay, Nathalie AU - Delaunay N AD - Laboratory of Analytical, Bioanalytical Sciences and Miniaturization, Chemistry, Biology and Innovation (CBI) UMR 8231, ESPCI Paris PSL, CNRS, PSL Research University, 10 rue Vauquelin, 75005, Paris, France. nathalie.delaunay@espci.fr. LA - eng GR - ANR-10-LABX-31/Agence Nationale de la Recherche/ GR - grant to Amira Al Matari/association Al Ihssan/ GR - PME DIM Analytics/Conseil Regional Ile de France/ PT - Journal Article DEP - 20200708 PL - Germany TA - Anal Bioanal Chem JT - Analytical and bioanalytical chemistry JID - 101134327 RN - 0 (Chorionic Gonadotropin) RN - 9002-68-0 (Follicle Stimulating Hormone) SB - IM MH - Animals MH - Chorionic Gonadotropin/*analysis MH - Chromatography, High Pressure Liquid/*methods MH - Cricetinae MH - Follicle Stimulating Hormone/*analysis MH - Glycosylation MH - Humans MH - Mass Spectrometry/*methods MH - Mice OTO - NOTNLM OT - Follicle-stimulating hormone OT - Glycoprotein OT - Human chorionic gonadotropin OT - Intact protein OT - Mass spectrometry OT - Nano-liquid chromatography EDAT- 2020/07/10 06:00 MHDA- 2021/04/24 06:00 CRDT- 2020/07/10 06:00 PHST- 2020/05/14 00:00 [received] PHST- 2020/06/26 00:00 [accepted] PHST- 2020/06/16 00:00 [revised] PHST- 2020/07/10 06:00 [pubmed] PHST- 2021/04/24 06:00 [medline] PHST- 2020/07/10 06:00 [entrez] AID - 10.1007/s00216-020-02794-3 [pii] AID - 10.1007/s00216-020-02794-3 [doi] PST - ppublish SO - Anal Bioanal Chem. 2020 Sep;412(23):5729-5741. doi: 10.1007/s00216-020-02794-3. Epub 2020 Jul 8.