Doctors find new way to predict prostate cancer

Doctors have found a new way to help predict a prognosis for men with prostate cancer. A new study published in "cancer research" magazine reveals the results of efforts of Mayo Clinic researchers. A man has a one-in-six chance of developing prostate cancer over his lifetime, but many of these cancers are slow growing and may not need treatment. However, it can be difficult to determine when prostate cancer should be treated aggressively, and when a man can take a "wait and see" approach. A new study suggests there may soon be a way to help predict a patient's prognosis with prostate cancer. Doctors have identified a molecule called B7-H3 that appears linked to more serious cancer. In a study of more than 300 men with prostate cancer, those with the highest levels of B7-H3 were four times as likely to have their cancer worsen as those with the lowest levels. B7-H3 lives on the surface of prostate cancer cells, and researchers believe it fights off immune system cells that are trying to attack the cancer. Doctors say that men with high levels of this molecule should benefit from prompt and thorough therapy, while men with low levels may be able to opt for less treatment.

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