Journal article

Publication year: 2023

Journal: International Journal of Molecular Sciences

Volume number: 24

Issue number: 6

eISSN: 1422-0067

Open access status: Gold

DOI Link: https://doi.org/10.3390/ijms24065722

Publisher: MDPI

Abstract: 
Novel treatment strategies are emerging for rare, genetic diseases, resulting in clinical trials that require adequate biomarkers for the assessment of the treatment effect. For enzyme defects, biomarkers that can be assessed from patient serum, such as enzyme activity, are highly useful, but the activity assays need to be properly validated to ensure a precise, quantitative measurement. Aspartylglucosaminuria (AGU) is a lysosomal storage disorder caused by the deficiency of the lysosomal hydrolase aspartylglucosaminidase (AGA). We have here established and validated a fluorometric AGA activity assay for human serum samples from healthy donors and AGU patients. We show that the validated AGA activity assay is suitable for the assessment of AGA activity in the serum of healthy donors and AGU patients, and it can be used for diagnostics of AGU and, potentially, for following a treatment effect.

Harvard Citation style: Banning, A., Laine, M. and Tikkanen, R. (2023) Validation of Aspartylglucosaminidase Activity Assay for Human Serum Samples: Establishment of a Biomarker for Diagnostics and Clinical Studies, International Journal of Molecular Sciences, 24(6), Article 5722. https://doi.org/10.3390/ijms24065722

APA Citation style: Banning, A., Laine, M., & Tikkanen, R. (2023). Validation of Aspartylglucosaminidase Activity Assay for Human Serum Samples: Establishment of a Biomarker for Diagnostics and Clinical Studies. International Journal of Molecular Sciences. 24(6), Article 5722. https://doi.org/10.3390/ijms24065722