We all have Anti nuclear Antibodies in our blood that repel the invaders in our bodies such as the bacteria, virus, and microbes. They are the unusual antibodies which are detectable in the blood and it contains the capability of binding to the certain structures within the nucleus of the cells. The nucleus is one of the innermost cells in our body which contains the DNA, the primary genetic stuff. ANAs Antinuclear Antibodies are found in patients whose immune system might be predisposed and cause inflammation against their own body tissue and those are the auto antibodies which direct against their own tissue.