Patient No. | Diagnosis | Age, yrs | Sex | DFS70 Reactivity by ELISA, unit/ml* | ANA Pattern/titer by IIF | Other Autoantibodies |
---|---|---|---|---|---|---|
1 | JDM | 6 | Female | 22.5 | DFS 1/80 | Negative |
2 | JDM | 10 | Female | 111.9 | DFS 1/160 | Anti-TIF1-γ |
3 | JDM | 1 | Male | 51.3 | DFS 1/80 | Anti-TIF1-γ |
4 | JDM | 9 | Male | 121.7 | DFS 1/320 | Anti-NXP2, anti-MLH1, anti-PMS1 |
5 | JDM | 6 | Male | 85.4 | Speckled 1/160 | Anti-NXP2, anti-MLH1, anti-PMS1 |
6 | JDM | 9 | Female | 40.5 | DFS 1/80 | Anti-MDA5 |
7 | JDM | 11 | Female | 33.3 | DFS 1/80 | Anti-MDA5 |
8 | JDM | 11 | Female | 12.8 | DFS 1/80 | Anti-MDA5 |
9 | JIA iridocyclitis | 2 | Female | 252.5 | DFS 1/320 | NT |
10 | JIA iridocyclitis | 7 | Female | 68.8 | DFS 1/160 | NT |
11 | JIA iridocyclitis | 6 | Female | 62.0 | DFS 1/160 | NT |
12 | JIA iridocyclitis | 5 | Male | 52.9 | Nucleolar 1/80 | NT |
13 | JIA iridocyclitis | 5 | Male | 23.2 | DFS 1/80 | NT |
↵* Positive > 15 unit/ml. Sera from all patients were confirmed to have anti-DFS70 antibodies by immunoblotting analysis with DFS70 recombinant protein and with HeLa cell extract. DFS: dense fine speckled; ANA: antinuclear antibody; IIF: indirect immunofluorescence; JDM: juvenile dermatomyositis; JIA: juvenile idiopathic arthritis; NT: not tested; anti-TIF1-γ: antitranscriptional intermediary factor 1-γ.