Abstract: An object of the present invention is to provide a process for conveniently and efficiently producing high purity thioredoxin from yeast. In the production of thioredoxin using yeast, thioredoxin is produced through the following steps (i) to (iii): (1) culturing the yeast; (2) stressing the yeast obtained in step (1) to cause a release of thioredoxin from a cell of the yeast; and (3) collecting the thioredoxin released from the yeast cell.
Abstract: The present invention provides a therapeutic agent for treating inflammatory bowel diseases comprising as an active ingredient at least one member selected from polypeptides belonging a family exhibiting thioredoxin activity.
Abstract: Preventive or therapeutic agents for controlling various disorders induced by toxic substances in smoke produced by the combustion of fibers such as tobacco are disclosed. A polypeptide of the thioredoxin family (TRX) prevents toxic substances in smoke, produced by the combustion of fibers such as tobacco, from inducing inflammatory reactions and tissue fibrosis. Accordingly, TRX is effective for controlling of a wide range of disorders caused by toxic substances contained in smoke produced by combustion of fibers. The object of the present invention is to provide the preventive or therapeutic agents for disorders caused by toxic substances contained in smoke produced by combustion of fibers comprising an effective amount of polypeptide of thioredoxin family and/or one or more of its inducers.