The General Hospital Corporation

Richard C Ragin

Patricia K Donahoe

David T MacLaughlin

Edward M Barksdale

James Epstein

Robert L Parry

David T MacLaughkin

Tai Wai Chin

This application concerns the treatment of certain tumors using an effective amount of the glycoprotein Mullerian Inhibiting Substance (MIS). This application further concerns the treatment of certain tumors using an effective amount of the C-terminal fragment of MIS. Also, this application concerns DNA sequences encoding the C-terminal fragment of MIS, vectors containing the DNA sequence and transformed host cells capable of producing the C-terminal fragment. This application further concerns treating certain tumors by transfecting tumor cells with a gene coding for MIS or the C-terminal fragment of MIS. Gene therapy treatments for inhibiting growth of certain tumors are also provided. Further, this application concerns a method for modulating class I histocompatibility antigens with MIS and EGF.

Use of mullerian inhibiting substance for treating certain tumors and

The present invention discloses a method of purifying Mullerian Inhibiting Substance. The method takes advantage of immunoaffinity chromatography to achieve MIS at up to 95% purity. The method provides for a purified MIS product in which contaminating enzymes having MIS proteolytic activity or inhibitors of MIS antiproliferative activity are substantially removed by addition of an alkali metal halide solution or an alkaline earth metal halide solution prior to elution with an acid solution having a pH of between about 2.5 and 4.0.

Purification of Mullerian inhibiting substance

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Brayton, MA, United States of America

Richard C Ragin