RT Journal Article T1 Improved integrative analysis of the thiol redox proteome using filter-aided sample preparation. A1 Bonzon-Kulichenko, Elena A1 Camafeita, Emilio A1 Lopez, Juan Antonio A1 Gomez-Serrano, Maria A1 Jorge, Inmaculada A1 Calvo, Enrique A1 Nuñez, Estefania A1 Trevisan-Herraz, Marco A1 Bagwan, Navratan A1 Barcena, Jose Antonio A1 Peral, Belen A1 Vazquez, Jesus K1 Adipose tissue K1 Cys oxidation K1 FASILOX K1 Filter-aided sample preparation K1 Sexual dimorphism K1 Thiol redox proteome AB Changes in the oxidation state of protein Cys residues are involved in cell signalling and play a key role in a variety of pathophysiological states. We had previously developed GELSILOX, an in-gel method that enables the large-scale, parallel analysis of dynamic alterations to the redox state of Cys sites and protein abundance changes. Here we present FASILOX, a further development of the GELSILOX approach featuring: i) significantly increased peptide recovery, ii) enhanced sensitivity for the detection of Cys oxidative alterations, and iii) streamlined workflow that results in shortened assay duration. In mitochondria isolated from the adipose tissue of obese, diabetic patients, FASILOX revealed a sexually dimorphic trait of Cys oxidation involving mainly mitochondrial oxidative phosphorylation complexes. These results provide the first evidence for a decreased efficiency in the antioxidant response of men as compared to women. PB Elsevier YR 2019 FD 2019-12-20 LK http://hdl.handle.net/10668/14875 UL http://hdl.handle.net/10668/14875 LA en NO Bonzon-Kulichenko E, Camafeita E, López JA, Gómez-Serrano M, Jorge I, Calvo E, et al. Improved integrative analysis of the thiol redox proteome using filter-aided sample preparation. J Proteomics. 2020 Mar 1;214:103624 NO This study was supported by competitive grants from the SpanishMinistry of Science, Innovation and Universities (BIO2015-67580-P,PGC2018-097019-B-I00 and RTI2018-093864-B-100), the Ministry ofEconomy, Industry and Competitiveness (BFU2016-80006-P) throughthe Carlos III Institute of Health-Fondo de Investigación Sanitaria grantPRB3 (IPT17/0019 - ISCIII-SGEFI / ERDF, ProteoRed), the FundacióMaratóTV3 (grant 122/C/2015) and “la Caixa” Banking Foundation(project code HR17-00247). The CNIC is supported by the Instituto deSalud Carlos III (ISCIII), the Ministerio de Ciencia, Innovación yUniversidades (MCNU) and the Pro CNIC Foundation, and is a SeveroOchoa Center of Excellence (SEV-2015-0505). DS RISalud RD Apr 17, 2025