Anti-cyclic citrullinated peptide antibodies in patients with primary Sjögren's syndrome

Abstract
In these situations, specific antibodies may be useful for making a correct diagnosis and, consequently, guide treatment. Anti-cyclic citrullinated peptide (anti-CCP) antibodies have been shown to be a specific marker for the diagnosis of RA.2 They bind to determinants rich in the unusual amino acid, citrulline, generated by deamination of arginine.3 We have read the recent article by Gottenberg et al,4 in which a 7.5% prevalence of anti-CCP antibodies in 134 French patients with pSS was reported. Here, we describe a similar experience in Colombian patients with pSS.