A top-down proteomic approach reveals a salivary protein profile able to classify Parkinson's disease with respect to Alzheimer's disease patients and to healthy controls

© 2023 The Authors. Proteomics published by Wiley-VCH GmbH..

Parkinson's disease (PD) is a complex neurodegenerative disease with motor and non-motor symptoms. Diagnosis is complicated by lack of reliable biomarkers. To individuate peptides and/or proteins with diagnostic potential for early diagnosis, severity and discrimination from similar pathologies, the salivary proteome in 36 PD patients was investigated in comparison with 36 healthy controls (HC) and 35 Alzheimer's disease (AD) patients. A top-down platform based on HPLC-ESI-IT-MS allowed characterizing and quantifying intact peptides, small proteins and their PTMs (overall 51). The three groups showed significantly different protein profiles, PD showed the highest levels of cystatin SA and antileukoproteinase and the lowest of cystatin SN and some statherin proteoforms. HC exhibited the lowest abundance of thymosin β4, short S100A9, cystatin A, and dimeric cystatin B. AD patients showed the highest abundance of α-defensins and short oxidized S100A9. Moreover, different proteoforms of the same protein, as S-cysteinylated and S-glutathionylated cystatin B, showed opposite trends in the two pathological groups. Statherin, cystatins SA and SN classified accurately PD from HC and AD subjects. α-defensins, histatin 1, oxidized S100A9, and P-B fragments were the best classifying factors between PD and AD patients. Interestingly statherin and thymosin β4 correlated with defective olfactory functions in PD patients. All these outcomes highlighted implications of specific proteoforms involved in the innate-immune response and inflammation regulation at oral and systemic level, suggesting a possible panel of molecular and clinical markers suitable to recognize subjects affected by PD.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:24

Enthalten in:

Proteomics - 24(2024), 3-4 vom: 26. Feb., Seite e2300202

Sprache:

Englisch

Beteiligte Personen:

Contini, Cristina [VerfasserIn]
Fadda, Laura [VerfasserIn]
Lai, Greca [VerfasserIn]
Masala, Carla [VerfasserIn]
Olianas, Alessandra [VerfasserIn]
Castagnola, Massimo [VerfasserIn]
Messana, Irene [VerfasserIn]
Iavarone, Federica [VerfasserIn]
Bizzarro, Alessandra [VerfasserIn]
Masullo, Carlo [VerfasserIn]
Solla, Paolo [VerfasserIn]
Defazio, Giovanni [VerfasserIn]
Manconi, Barbara [VerfasserIn]
Diaz, Giacomo [VerfasserIn]
Cabras, Tiziana [VerfasserIn]

Links:

Volltext

Themen:

88844-95-5
Alpha-Defensins
Alzheimer's disease
Biomarkers
Cystatin B
Cystatins
Journal Article
Parkinson's disease
S100A9
Salivary Proteins and Peptides
Salivary proteomics
Transcription Factors

Anmerkungen:

Date Completed 15.02.2024

Date Revised 15.02.2024

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1002/pmic.202300202

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM360409776