Ben-Jacob said the hybrid, or partially on-off state, also supports cancer metastasis by enabling collective cell migration and by imparting stem-cell properties that help migrating cancer cells evade the immune system and anticancer therapies.
"Now that we understand what drives the cell to select between the various states, we can begin to think of new ways to outsmart cancer," Ben-Jacob said. "We can think about coaxing the cancer to make the decision that we want, to convert itself into a state that we are ready to attack with a particularly effective treatment."
The cancer-metastasis results correspond with findings from previous studies by Ben-Jacob and Onuchic into the collective decision-making processes of bacteria and into new strategies to combat cancer by timing the delivery of multiple drugs to interrupt the decision-making processes of cancer.
"At CTBP, we allow the underlying physics of a system to guide our examination of its biological properties," said Onuchic, CTBP co-director and Rice's Harry C. and Olga K. Wiess Professor of Physics and Astronomy and professor of chemistry and of biochemistry and cell biology. "In this case, that approach led us to develop a powerful model for simulating the decision-making circuitry involved in cancer metastasis. Going forward, we plan to see how this circuit interacts with others to produce a variety of cancer cells, including cancer stem cells."
The research is supported by the National Science Foundation, the Cancer Prevention and Research Institute of Texas and the Tauber Family Funds at Tel Aviv University. Lu is a postdoctoral researcher at CTBP, and Jolly is a graduate student in bioengineering. Levine is co-director of CTBP and Rice's Karl F. Hasselmann Professor in
|Contact: David Ruth|