
“The best way to do something unique is originate it from your own research in your own institution,” says Guido Tricot, MD, PhD, director of the Utah Blood and Marrow Transplant and Myeloma Program.
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Guido Tricot, MD, PhD, director
of the newly organized Utah Blood and Marrow Transplant and
Myeloma Program at Huntsman Cancer Institute (HCI) and the
University of Utah, reaches for excellence right from the start.
“My first goal is to get an internationally recognized
myeloma program going,” he says. “It will combine
clinical and basic research—the type of research we can
use to develop new treatments. To draw patients from all over
the nation and the world, you need to do something unique,
and the best way to do something unique is originate it from
your own research in your own institution.”
Multiple myeloma is a cancer that starts and grows in the
bone marrow, where blood-forming hematopoietic cells grow.
Since myeloma attacks the bones, patients have bone thinning
and fractures. The disease is relatively uncommon, occurring
in three persons per 100,000. About 60,000 people in the United
States have multiple myeloma, and 15,000 more are
diagnosed yearly. Each year, 12,000 people die with this disease.
Until about 15 years ago, the median survival
time for people with myeloma was 2.5 years after their diagnosis,
and the median age at diagnosis was 67 years. The thinking
more than a decade ago was that patients were too old and
too frail to withstand high doses of chemotherapy —the standard cancer treatment
of the day. In about 1990, doctors started treating myeloma
patients with intensive short-term chemotherapy to kill the
tumor, which also kills the healthy hematopoietic cells. This
was followed by transplantation of stem cells (usually harvested
from the patients’ bone marrow or peripheral blood before
the high-dose chemotherapy), which grew and replenished the
bone marrow with healthy hematopoietic cells.
“Our hypothesis was that the patients were frail because
the myeloma made them that way, not their age or other factors,” says
Tricot, “and getting rid of the disease in their bones,
or at least getting it under control, would leave the patients
in much better shape.” The hypothesis turned out to be
true.
Later improvements in treatment such as
a “tandem” transplant
technique in which patients receive two smaller, more easily
tolerated doses of chemotherapy to kill the cancer cells rather
than a more toxic single dose, helped reduce the mortality
rate even further. Before stem cell transplants, only five
percent of myeloma patients lived 10 years beyond their diagnosis.
Now 50 percent live 10 years or longer, and about 15 percent
show no evidence of the disease progressing after 14 years
of follow-up.
“The next step—not only to get patients in remission,
not only to help them survive 10 years, but really going for
the cure—needs to come from an interaction of basic science
with clinical work,” says Tricot. “That’s
why I’ve come to HCI. I want to work in a place where
physicians interact with basic researchers, where people can
cooperate and collaborate,” he says.

Patients from all over the world are treated in Huntsman Cancer Institute's Myeloma Program, including James Rollings from Virginia.
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Tricot’s ongoing clinical research
involves the microenvironment in the bone marrow. As myeloma
cells grow, they shift the environment in the bone marrow
so it favors their own growth instead of supporting normal
blood-forming cells. Even after chemotherapy, the altered
microenvironment allows some myeloma cells to survive. Initial
studies using chemotherapy drugs that not only killed the
myeloma cells but shifted the microenvironment back to normal
are proving effective, especially in patients with the most
deadly kinds of myeloma.
In patients whose myeloma recurs after
treatment, the tumor cells that come back are often resistant,
or less sensitive, to chemotherapy. The myeloma cells have
found ways to keep the chemotherapy drug from getting inside,
or they may excrete it quickly before it damages them. Tricot’s research
investigates immunological therapies that recognize the cancer
cell from the features of its outer membrane. “We’re
working on immunotherapies that can tell which cells ‘don’t
belong’ to remove any populations of myeloma cells that
remain after transplantation,” Tricot says.
Investigating, developing, and testing
these techniques will create the unique new treatments that
draw myeloma patients from around the world. It’s one example of HCI’s
philosophy of linking the laboratory to the clinic.
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