Researchers have identified a protein that disrupts an important signaling pathway in prostate cancer cells and suppresses growth of the cancer.
The protein also assists in the retention of vitamin E in prostate cancer cells and increases the effect of vitamin E in limiting the proliferation of cancer cells, the researchers found.
The researchers, led by ShuYuan Yeh, assistant professor of urology and pathology at the University of Rochester Medical Center, are the first to describe the role of a protein known as alpha tocopherol associated protein or TAP in prostate cancer. Expression levels of TAP are significantly lower in prostate cancer than in a normal prostate, the researchers found. High expression of TAP protein in prostate cells may have a physiological role in normal prostate development and vitamin E-related functions, Yeh said.
Michael Wentzel | EurekAlert!
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