TEMPE, Ariz., Oct 26, 2009 /PRNewswire via COMTEX/ -- Instead of killing cancer
cells, researchers at Arizona State University will use the laws of physics to
figure out how to control them. And, rather than treating cancer as a disease
and seeking a cure, ASU scientists will view cancer cells as physical objects
and study them the way a physicist would, using simple variables like
temperature, pressure and force.
That fresh approach is behind a new research center at Arizona State University
- one of 12 Physical Sciences-Oncology Centers receiving some of $22.7 million
in funding this fiscal year from the National Institutes of Health's National
Cancer Institute. Each center will bring a non-traditional approach to cancer
research with the goal of developing new methods of arresting tumor growth and
metastasis.
In addition to ASU, other institutions receiving funding include: Johns Hopkins
University, Massachusetts Institute of Technology, Memorial Sloan-Kettering
Cancer Center, Northwestern University, Princeton University, H. Lee Moffitt
Cancer Center and Research Institute, Cornell University, Scripps Research
Institute, University of California-Berkeley, University of Southern California
and University of Texas Health Science Center.
The new Center for Convergence of Physical Science and Cancer Biology at ASU
will receive about $1.7 million in funding for each of the first two years of a
five-year proposal. Part of the plan is the establishment of a "cancer forum,"
hosted by the BEYOND Center for Fundamental Concepts in Science at ASU.
"What is new about this initiative is that it is going to be tackling the root
causes of cancer on a conceptual level," says Paul Davies, a theoretical
physicist, cosmologist and astrobiologist who is leading the ASU cancer
initiative. "We want physical scientists to think about why cancer exists in the
first place. What is its role in the great biological scheme of things as life
has evolved over the last several hundred million years? Within the human body,
how does cancer behave as a physical object?"
Davies is experienced at asking these types of big questions. As director of the
BEYOND Center in ASU's College of Liberal Arts and Sciences, Davies' work has
focused on applying the laws of physics to the early universe, from the first
split second. He is noted for his work on the theory of quantum fields in curved
spacetime, the thermodynamics of black holes, the arrow of time, the nature of
the laws of physics and the emergence of life in the universe.
"When I first began thinking about the problem of cancer, it occurred to me that
physicists can do some pretty fancy things. If we can build the Large Hadron
Collider to find the Higgs Boson amid one trillion proton collisions, maybe we
can find clever ways of locating and zapping individual cancer cells in the
human body. So I began to get excited about the prospect of just throwing the
full panoply of toys that physicists use at the problem of diagnosing and
killing cancer cells.
"Then, I came to realize that 'think big and zap the problem' was probably not
the best way to go. A more subtle approach to really understand cancer cells is
to regard them as physical objects rather than as enemies to be destroyed,"
Davies says.
Other collaborators on the ASU team include Stuart Lindsay, a Regents' Professor
of physics and chemistry and director of the Center for Single Molecule
Biophysics at the Biodesign Institute; Deidre Meldrum, dean of the Ira A. Fulton
Schools of Engineering and director of the Center for Ecogenomics at the
Biodesign Institute; Timothy Newman, professor of physics and director of the
Center for Biological Physics; Robert Ros, associate professor of physics;
Peiming Zhang, an associate research professor in the Biodesign Institute; Roger
Johnson, a research scientist and laboratory manager; and Pauline Davies, a
professor of practice in the Hugh Downs School of Human Communication.
"We are also collaborating with the Fred Hutchinson Cancer Research Center,
which will provide the cell lines for us, and the Mayo Clinic, which will
provide tissue samples," Davies says.
"And, we will be looking at the mechanical properties of the cells. We have
state-of-the-art equipment to examine individual cells in suspension in three
dimensions. The problem when you look at a cell usually is that it's a slide, it
has been squashed flat and stuck to a surface, it's a two-dimensional picture.
We can examine cells in a three-dimensional suspension, we can examine them from
all sides," says Davies.
"It's well known that cancer cells get more squishy. The reason they get bent
out of shape is because of the squishiness, they become less elastic. Nobody
really knows what the reason for that is or whether this is something just to do
with the membrane of the cell or the cytoskeleton - little tubes inside the
cells that pull like ropes. We want to know what's going on in these cells. Why
they are getting squishy? How does that effect the survival chances of the
cancer cell?"
The center at ASU will be a think tank that hosts several workshops each year on
topics related to the intersection of physical science and cancer. "The goal of
the workshops is to serve as a catalyst to establish new lines of inquiry, both
theoretical and experimental," Davies says. "We are aiming for that big
conceptual breakthrough that would transform the subject, as opposed to the slow
incremental progress that's been made so far using traditional approaches."
The center will also create a Web site to serve as a window on the research
program and to host research papers, podcasts, webcasts and news items, Davies
notes.
"The traditional approach to cancer is it is a disease to be cured. We are
taking the approach that it is part of life's intrinsic exuberance that we wish
to control," Davies says. "We don't have to cure cancer. All we have to do is to
find ways of preventing it from taking over and destroying the body of the
host."
SOURCE Arizona State University's BEYOND Center for Fundamental Concepts in
Science
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