Serum biomarker panel for the diagnosis of rheumatoid arthritis

Autor: Hee-Gyoo Kang, Mira Park, Jiyeong Lee, Sora Mun, Jieun Shin, Mi-Kyoung Lim
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Arthritis Research & Therapy
Arthritis Research & Therapy, Vol 23, Iss 1, Pp 1-10 (2021)
ISSN: 1478-6362
1478-6354
Popis: Background Rheumatoid arthritis (RA) is an autoimmune disease of inflammatory joint damage, wherein C-reactive protein and autoantibodies including rheumatoid factor (RF) and anti-cyclic citrullinated peptide (anti-CCP) are rapidly elevated. These serological factors are diagnostic markers of RA; however, their sensitivity and specificity for prediction warrant improvement for an early and accurate diagnosis. Methods We aimed to identify alternative biomarkers by serum protein profiling using LC-MS/MS. We performed statistical and functional analysis of differentially expressed proteins to identify biomarker candidates complementing conventional serological tests. Results Seven biomarker candidates were verified through multiple reaction monitoring-based quantitative analysis, of which angiotensinogen (AGT), serum amyloid A-4 protein (SAA4), vitamin D-binding protein (VDBP), and retinol-binding protein-4 (RBP4) had an area under the curve over 0.8, thus distinguishing RA patients, including seronegative (RF- and anti-CCP-negative) RA patients, from healthy controls. Conclusions Therefore, among seronegative RA patients, a four-biomarker panel (AGT, SAA4, VDBP, and RBP4) can prevent false negatives and help diagnose RA accurately.
Databáze: OpenAIRE