An anti-nuclear antibodies subtype is anti-Scl-70 antibodies.
Antinuclear antibodies ( ANAs , also known as antinuclear factor or ANF ) are autoantibodies that bind to contents of the cell nucleus . There are many subtypes of ANAs such as anti-Ro antibodies , anti-La antibodies , anti-Sm antibodies , anti-nRNP antibodies , anti-Scl-70 antibodies , anti-dsDNA antibodies , anti-histone antibodies , antibodies to nuclear pore complexes , anti-centromere antibodies and anti-sp100 antibodies .