Anti-DFS70 autoantibodies in undifferentiated connective tissue diseases subjects: What's on the horizon?

Maria Infantino*, Ora Shovman, Dolores Pérez, Mariangela Manfredi, Valentina Grossi, Maurizio Benucci, Francesca Li Gobbi, Francesca Bandinelli, Arianna Damiani, Paolo Moscato, Danielle Azoulay, Boris Gilburd, Yehuda Shoenfeld

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


Objective. The main objective was to determine the prevalence of anti-dense fine speckled (DFS70) antibodies in a stable population of undifferentiated connective tissue disease (UCTD) to better define their potential role. Methods. Immunological and clinical records of 91 long-standing UCTD patients were studied. DFS pattern was determined using the IIF ANA test on HEp-2 cells and anti-DFS70 antibodies were tested by chemiluminescence assay and by DFS70 line immunoassay. Results. Twelve (13.2%) of 91 serum samples were positive for anti-DFS70 antibodies by chemiluminescence assay and line immunoassay. There was no statistical significance between the prevalence of anti-ENA and anti- DNA autoantibodies in patients with and without anti-DFS70 antibodies. No differences were found in the clinical characteristics of both groups. The presence of the anti-DFS70 antibodies was related to the younger age class. Conclusion. The high prevalence of anti-DFS70 antibodies in the UCTD patients suggested the potential role of these autoantibodies as a marker in the evolution of UCTD to CTD.

Original languageEnglish
Pages (from-to)1293-1298
Number of pages6
Issue number7
StatePublished - 1 Jul 2018
Externally publishedYes


  • Anti-DFS70 antibodies
  • Antinuclear antibodies
  • Undifferentiated connective tissue disease


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