my sister has been battling cancer. First she had cervical cancer. She had radiation and surgery and was in the clear. months later the cancer had metastisized into 3 masses in her lower body near the site of the original tumor. chemotherapy has proven ineffective. the doctors have basically said there is nothing they can do. they have stopped chemo and now have her on a drug to stop blood flow to the tumors to help prolong her life. I have read that thioredoxin protects the cancer cells from chemotherapy and radiation. I have also read some publications about thioredoxin reductase as a cancer treatment. do you have any information on this subject and can you suggest any clinics specializing in thioredoxin reductase. I have also read there is a link to the gene p53 as a tumor suppressor.