Autoantibodies in patients with silicone implants

We assessed the prevalence of autoantibodies in women with silicone implants and controls. Five hundred consecutive patients with silicone implants, 25 age-matched normal women, 25 women with silicone implants and no rheumatic symptoms, and 100 women with fibromyalgia were tested. Immunofluorescence antinuclear antibodies (ANA) were performed using HEp-2 cells. Subtype autoantibodies were performed by enzyme-linked immunoassay and Western blot. ANA tests were positive in 30% of patients with silicone implants and rheumatic symptoms, 8% of age-matched normal women, 28% of women with silicone implants without clinical symptoms, and 25% of women with fibromyalgia and no silicone implants. The predominant ANA pattern was speckled (55%). ANA subtype testing was positive in 4.8% of patients and none of the controls. We conclude that a larger proportion of women with silicone implants have autoantibodies compared to age-matched asymptomatic women suggesting immune activation in women with silicone implants.