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Alpha-2-HS-glycoprotein plasma level decrease correlates with age in patients with myelodysplastic syndromes.

BACKGOUND: It has been indicated in plasma proteomic studies on different myelodysplastic syndrome (MDS) cohorts that alpha-2-HS-glycoprotein could be a promising MDS biomarker candidate.

OBJECTIVE: The goal of this work was to estimate alpha-2-HS-glycoprotein (AHSG) plasma levels and its biomarker value in the low- and high-risk subgroups of MDS patients.

METHODS: The level of AHSG was estimated for 115 plasma samples using ELISA.

RESULTS: The AHSG plasma level was found to be decreased significantly (p= 2.59 × 10-7) in MDS patients (515 ± 58 μg/ml) when compared to healthy controls (579 ± 64 μg/ml). Pearson and Spearman correlation analyses showed that age is the principal factor affecting the AHSG plasma level, rather than risk/diagnosis in MDS.

CONCLUSIONS: In this work we demonstrate that although the total plasma level of AHSG is decreased in myelodysplastic syndrome patients, in particular in advanced MDS, that decrease correlates more strongly with age than with diagnosis within our studied cohort. Thus, according to the AHSG data gathered so far, AHSG total plasma level does not seem to be a suitable MDS biomarker, but its particular proteoforms should be considered for the next steps in MDS research.

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