Differential redox proteomic profiles of serum from severe asthma patients after one month of benralizumab and mepolizumab treatment

Mepolizumab and Benralizumab are biological drugs for severe asthma patients able to reduce moderate-tosevere exacerbation rate (peripheral eosinophilial % mepolizumab 1.6 +/- 1.2; benralizumab 0; p < 0.0001), improving the quality of life and lung function parameters (FEV1%: mepolizumab 87.1 +/- 21.5; benralizumab 89.7 +/- 15, p < 0.04). Here we report a preliminary redox proteomic study highlighting the level of oxidative burst present in serum from patients before and after one month of both treatments. Our results highlighted apolipoprotein A1 oxidation after Mepolizumab treatment, that could be related to HDL functionality and could represent a potential biomarker for the treatment. On the other hand, after one month of Benralizumab we detected higher oxidation levels of ceruloplasmin and transthyretin, considered an important oxidative stress biomarker which action help to maintain redox homeostasis.