Diagnostic tests for abnormal ovarian conditions
Methods and compositions, and a kit for diagnosing ovarian disorders including autoimmunity and ovarian cancer. Ovarian autoimmunity is associated with unexplained infertility or idiopathic premature ovarian failure that occurs in the absence of polyglandular disease. Methods and composition described herein are used to detect ovarian autoimmunity before the onset of ovarian dysfunction. Thus, those individuals are identified who would benefit from therapy to maintain, as well as restore, ovarian function.
1. A method to determine the presence and concentration of anti-SELENBP1 autoantibodies in a biological sample from an individual suspected of having ovarian cancer, comprises:
(a) contacting the biological sample with antigen SELENBP1 or a fragment thereof in conditions where naturally occurring autoantibodies form antigen antibody complexes with the antigen provided;
(b) determining the presence and concentration of anti-SELENBP1 autoantibodies in the biological sample by analysis of the complexes; and
(c) comparing the presence and concentration of anti-SELENBP1 autoantibodies determined in (b) with values in biological samples from subjects without ovarian cancer; and
(d) inferring that ovarian cancer is present in the individual, if anti-SELENBP1 autoantibodies are present in a concentration that is higher than the concentration in the subjects without ovarian cancer.
2. The method of claim 1 wherein SELENBP1 is a recombinant protein.