 For example, the addition of telomerase to cells that do not possess this enzyme has shown to bypass the limit of cellular aging in those cells, thereby linking this enzyme to reduced cellular aging.The addition of telomerase, and the presence of the enzyme in cancer cells has been shown to provide an immunity mechanism for the cell in proliferating, linking the transferase activity to increased cellular growth and reduced sensitivity for cellular signalling.The importance of discovering this enzyme has since sent led her continued research at the University of California San Francisco, where she studies the effect of telomeres and telomerase activity on cellular aging.