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Tuesday, Feb. 26, 2008


Creating a Cord-Blood Lifeline


By Kathleen Kingsbury

Correction Appended: February 27, 2008

The decision to donate a newborn's umbilical-cord
blood is, for many expectant mothers, a simple
checkmark on a long list of prenatal choices. But
for Noel Beninati, one donor's checkmark offered a
lifeline. Last May, Beninati received a transplant
of stem cells harvested from the blood of an
infant's discarded umbilical cord at Boston's Dana
Farber Institute, to help him fight a rare blood
condition called myelodysplastic syndrome. After
doctors couldn't find a matching bone-marrow
donor, the 58-year-old New Yorker says his last
hope was cord blood, a solution that would not
exist without parental donors. New parents,
Beninati urges, "must understand the importance
this decision can mean for the public good."

State legislators agree. More and more have
introduced or passed laws to mandate that doctors
and hospitals educate expectant parents about the
possibility of cord-blood donation. Doctors can
now treat some 70 diseases using stem cells
harvested from cord blood, and states including
Oklahoma, Michigan and Arkansas are considering
bills to fund the establishment of additional
local public cord-blood banks and collection
centers. "Ideally, we want people to see this as a
public service akin to blood or organ donation,"
says Oklahoma state senator Jay Paul Gumm, who has
sponsored such legislation. "Something that they
automatically think to sign up for."

Despite the claim by the National Marrow Donor
Program (NMDP) that more than 10,000 new patients
each year could benefit from cord-blood stem-cell
transplants, most umbilical cords currently end up
as medical waste. Today, a matching donor from the
national registry is found only about 25% of the
time, and many patients die waiting. So far,
doctors have found the most promise in cord blood
for conditions such as blood cancers, leukemia and
sickle-cell anemia. But last year, an ongoing
study at the University of Florida showed
cord-blood cells could also be effective at
treating type-1 diabetes. Many doctors also
believe that these transplants will eventually
prove useful in regenerative medicine, helping
patients suffering from heart disease, spinal
bifida or even traumatic brain injuries.

"The potential is so significant," says Dr.
Jennifer Willert, a stem-cell transplant
specialist at the Rady Children's Hospital in San
Diego. "Not to have families know about the
possibility of banking, that's tragic."

Cord blood has several advantages over bone marrow
transplants, the procedure to which it is most
often compared. The first is that cord blood is
collected without risk to the mother or the
newborn, whereas a bone marrow donor faces surgery
and general anesthesia. Cord-blood transplants
also require a less perfect match in unrelated
people, opening up a broader spectrum of potential
donors, and recipients' bodies are less likely to
reject a transplant.

The U.S. currently only has about 70,000 units of
cord blood stored at its 20 public cord-blood
banks. That's largely because few parents are
aware that public donation is even a possibility.
Instead, if a mother-to-be has heard of cord-blood
banking at all, she's considered private banking,
or the storage of her infant's own cord blood, an
option costing up to $3,000 plus annual fees.
Parents generally see private banking as an
insurance policy should their child or a sibling
fall ill later in life. Public donation does not
guarantee availability to the donor's family
should the need later arise. "If you don't save
the cells [privately], they can never be fully
yours," says Dave Zitlow, a spokesman for San
Francisco-based Cord Blood Registry, the world's
largest cord-blood private bank.

But both the American Academy of Pediatrics and
the American Medical Association encourage, in
most cases, public donation over private banking.
That's because a child has only between one in
1,000 and one in 200,000 chance of needing an
infusion of his own cord blood later in life. More
public contributions would expand the ethnic
diversity in the donor pool, which now
predominantly favors Caucasian recipients. What's
more, many conditions treated today with
cord-blood stem cells are most successful when the
donor is not related to the recipient, says Dr.
Kent Christopherson, a hematologist at Chicago's
Rush University Medical Center. "Odds are you'll
never need your own cord blood, but actually your
neighbor's," Christopherson says. "So advocating
for public donation is in fact a way to help
yourself."

A recent NMDP survey showed that 95% of new
mothers say had they known about public cord-blood
donation, they would have donated. Says Kristi
Kirkpatrick, a manager from Pittsburgh who is
expecting her second child in March. "To be able
to save a life with something that'd normally go
in the trash?" she says. "That's not a difficult
decision for anyone to make."

The original version of this article misidentified
Dave Zitlow as a spokesman for the company
CryoCell. He actually works for Cord Blood
Registry.




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