Silent DNA architecture helps block cancer cell growth

Cancerous and precancerous cells can detect that they are abnormal and kill themselves, or remain alive indefinitely but cease proliferating, through two intrinsic processes called programmed cell death and cellular senescence. One goal of cancer chemotherapy is to help stimulate these potent antitumor processes. Researchers at Cold Spring Harbor Laboratory on Long Island have recently shown that by locking cancer cells into a permanent state in which they remain alive but can no longer proliferate, cellular senescence contributes to successful outcomes following cancer therapy. Now, the same group has uncovered a precise molecular mechanism that helps trigger the “stop growing” response of cells. The study is published in the June 13 issue of the journal Cell.

Researchers discover new breast, lung cancer gene

Scientists at Tularik Inc. and Cold Spring Harbor Laboratory have discovered a new gene that is expressed at abnormally high levels in nearly 50% of the breast cancer specimens they examined, and is similarly overexpressed in a large proportion of lung cancers (35%).

Pavlov?s Flies: Researchers Identify Fruit Fly Memory Mutants

By teaching fruit flies to avoid an odor and isolating mutant flies that can?t remember their lessons, researchers at Cold Spring Harbor Laboratory in New York have identified dozens of genes required for long-term memory. In the same study, using DNA chip technology, the scientists identified another large group of candidate memory genes that are either switched on or off in the fly brain during memory formation.