Multiplex testing for the screening of lysosomal storage disease in urine: Sulfatides and glycosaminoglycan profiles in 40 cases of sulfatiduria

Gisele Pino, Erin Conboy, Silvia Tortorelli, Sara Minnich, Kim Nickander, Jean Lacey, Dawn Peck, April Studinski, Amy White, Dimitar Gavrilov, Piero Rinaldo, Dietrich Matern, Devin Oglesbee, Roberto Giugliani, Maira Burin, Kimiyo Raymond

Research output: Contribution to journalArticle

2 Scopus citations

Abstract

Purpose: To describe an efficient and effective multiplex screening strategy for sulfatide degradation disorders and mucolipidosis type II/III (MLII/III) using 3 mL of urine. Methods: Glycosaminoglycans were analyzed by liquid chromatography-tandem mass spectrometry. Matrix assisted laser desorption/ionization-time of flight tandem mass spectrometry was used to identify free oligosaccharides and identify 22 ceramide trihexosides and 23 sulfatides, which are integrated by 670 calculated ratios. Collaborative Laboratory Integrated Reports (CLIR; https://clir.mayo.edu) was used for post-analytical interpretation of the complex metabolite profile and to aid in the differential diagnosis of abnormal results. Results: Multiplex analysis was performed on 25 sulfatiduria case samples and compiled with retrospective data from an additional 15 cases revealing unique patterns of biomarkers for each disorder of sulfatide degradation (MLD, MSD, and Saposin B deficiency) and for MLII/III, thus allowing the formulation of a novel algorithm for the biochemical diagnosis of these disorders. Conclusions: Comprehensive and integrated urine screening could be very effective in the initial workup of patients suspected of having a lysosomal disorder as it covers disorders of sulfatide degradation and narrows down the differential diagnosis in patients with elevated glycosaminoglycans.

Original languageEnglish (US)
Pages (from-to)106-110
Number of pages5
JournalMolecular genetics and metabolism
Volume129
Issue number2
DOIs
StatePublished - Feb 2020

Keywords

  • Lysosomal storage disorders
  • Multiple sulfatase deficiency
  • Multiplex analysis
  • Sulfatides
  • Sulfatiduria
  • Urine screening

ASJC Scopus subject areas

  • Endocrinology, Diabetes and Metabolism
  • Biochemistry
  • Molecular Biology
  • Genetics
  • Endocrinology

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    Pino, G., Conboy, E., Tortorelli, S., Minnich, S., Nickander, K., Lacey, J., Peck, D., Studinski, A., White, A., Gavrilov, D., Rinaldo, P., Matern, D., Oglesbee, D., Giugliani, R., Burin, M., & Raymond, K. (2020). Multiplex testing for the screening of lysosomal storage disease in urine: Sulfatides and glycosaminoglycan profiles in 40 cases of sulfatiduria. Molecular genetics and metabolism, 129(2), 106-110. https://doi.org/10.1016/j.ymgme.2019.10.009