UCLA researchers have found that a protein that serves as a suppressor of cancer diminishes in skin and mouth epithelial cells as the human body ages. Dr. No-Hee Park, UCLA School of Dentistry dean and his team have been studying p53, tumor suppressor protein, “guardian of the genome” involved in DNA repair, cell cycle regulation and cellular deterioration.
“Looking at ways to maintain levels of p53 as one ages may provide a therapeutic clue to preventing cancer development,” said Park. Previous studies have shown p53 accumulates in large quantities as connective tissue cells, called fibroblasts, age and stop dividing...
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