Aging is characterized by increase in reactive oxygen (ROS) and nitrogen (RNS) species, key factors of cardiac failure and disuse-induced muscle atrophy. This study focused on serum nitroproteome as a trait of longevity by adopting two complementary gel-based techniques: two-dimensional differential in gel electrophoresis (2-D DIGE) and Nitro-DIGE coupled with mass spectrometry of albumin-depleted serum of aged (A, n = 15) and centenarian (C, n = 15) versus young females (Y, n = 15). Results indicate spots differently expressed in A and C compared to Y and spots changed in A vs. C. Nitro-DIGE revealed nitrosated protein spots in A and C compared to Y and spots changed in A vs. C only (p-value < 0.01). Nitro-proteoforms of alpha-1-antitripsin (SERPINA1), alpha-1-antichimotripsin (SERPINA3), ceruloplasmin (CP), 13 proteoforms of haptoglobin (HP), and inactive glycosyltransferase 25 family member 3 (CERCAM) increased in A vs. Y and C. Conversely, nitrosation levels decreased in C vs. Y and A, for immunoglobulin light chain 1 (IGLC1), serotransferrin (TF), transthyretin (TTR), and vitamin D-binding protein (VDBP). Immunoblottings of alcohol dehydrogenase 5/S-nitrosoglutathione reductase (ADH5/GSNOR) and thioredoxin reductase 1 (TRXR1) indicated lower levels of ADH5 in A vs. Y and C, whereas TRXR1 decreased in A and C in comparison to Y. In conclusion, the study identified putative markers in C of healthy aging and high levels of ADH5/GSNOR that can sustain the denitrosylase activity, promoting longevity.
Can Serum Nitrosoproteome Predict Longevity of Aged Women? / D. Capitanio, P. Barbacini, B. Arosio, F.R. Guerini, E. Torretta, F. Trecate, M. Cesari, D. Mari, M. Clerici, C. Gelfi. - In: INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES. - ISSN 1422-0067. - 21:23(2020 Dec 01), pp. 9009.1-9009.20.
|Titolo:||Can Serum Nitrosoproteome Predict Longevity of Aged Women?|
CAPITANIO, DANIELE (Primo)
BARBACINI, PIETRO (Secondo)
CLERICI, MARIO SALVATORE (Penultimo)
GELFI, CECILIA (Ultimo) (Corresponding)
|Parole Chiave:||aging; cardiovascular disease; muscle atrophy; nitrosative stress; proteomics|
|Settore Scientifico Disciplinare:||Settore BIO/12 - Biochimica Clinica e Biologia Molecolare Clinica|
|Data di pubblicazione:||1-dic-2020|
|Data ahead of print / Data di stampa:||27-nov-2020|
|Digital Object Identifier (DOI):||http://dx.doi.org/10.3390/ijms21239009|
|Appare nelle tipologie:||01 - Articolo su periodico|