Umbilical cord blood was once discarded as waste material but is now known to be a useful source of blood stem cells. Cord blood has been used to treat children with certain blood diseases since 1989 and research on using it to treat adults is making progress. So what are the current challenges for cord blood research and how may it be used – now and in the future?
Cord blood in public banks is available to unrelated patients who need haematopoietic stem cell transplants. Some banks, such as the NHS bank in the UK, also collect and store umbilical cord blood from children born into families affected by or at risk of a disease for which haematopoietic stem cell transplants may be necessary – either for the child, a sibling or a family member. It is also possible to pay to store cord blood in a private bank for use by your own family only.
While cord-blood companies herald the possible future treatments of many adult diseases with stem cells, they rarely mention a key issue. Researchers have greater hopes for the potential of embryonic stem cells, which are thought to have the ability to develop into many different types of cells. It is not known whether the stem cells in cord blood have that ability; until recently, it was thought that they (like those in bone marrow) could only regenerate blood and immune cells.
After all is said and done, the cost to collect, test, process and store a donated cord blood collection at a public bank is estimated to be $1,200 to $1,500 dollars for each unit banked. That does not include the expense for the regulatory and quality systems needed to maintain licensure, or the cost of collecting units that are discarded because they don’t meet standards.
Umbilical cord blood can save lives. Cord blood is rich in stem cells that can morph into all sorts of blood cells, which can be used to treat diseases that harm the blood and immune system, such as leukemia and certain cancers, sickle-cell anemia, and some metabolic disorders. There are a few ways for transplant patients to get blood cells (umbilical and placenta, bone marrow, peripheral/circulation), but cord blood is easier to match with patients, and because it is gathered during birth from the umbilical cord, it’s a painless procedure.
Cost to Donate Client pays a one-time processing fee and annual storage fees. There is no cost for donating, but there is a cost for retreiving from a public bank. One-time processing fee and annual storage fees No cost for donating, but high cost for public bank retrival
Like most transplants, the stem cells must be a genetic match with the patients to be accepted by the body’s immune system. It goes without saying that a patient’s own cord blood will be a 100% match. The second highest chance of a genetic match comes from siblings.
This is only the beginning. Newborn stem cell research is advancing, and may yield discoveries that could have important benefits for families. CBR’s mission is to support the advancement of newborn stem cell research, with the hope that the investment you are making now will be valuable to your family in the future. CBR offers a high quality newborn stem cell preservation system to protect these precious resources for future possible benefits for your family.
Cord Blood Registry is a registered trademark of CBR® Systems, Inc. Annual grant support for Parent’s Guide to Cord Blood Foundation is made possible by CBR® through the Newborn Possibilities Fund administered by Tides Foundation.
“Raising a family is expensive enough,” says Jeffrey Ecker, MD, director of obstetrical clinical research at Massachusetts General Hospital, in Boston, and a member of ACOG’s ethics committee. “There’s no reason for parents to take on this additional financial burden when there’s little chance of a child ever using his own cord blood.”
Though uses of cord blood beyond blood and immunological disorders is speculative, some research has been done in other areas. Any such potential beyond blood and immunological uses is limited by the fact that cord cells are hematopoietic stem cells (which can differentiate only into blood cells), and not pluripotent stem cells (such as embryonic stem cells, which can differentiate into any type of tissue). Cord blood has been studied as a treatment for diabetes. However, apart from blood disorders, the use of cord blood for other diseases is not in routine clinical use and remains a major challenge for the stem cell community.
Life Line Stem Cell asks mothers arriving for delivery to donate all perinatal tissue: cord blood, cord tissue, and the placenta. Cord blood donations that are eligible for transplant are sent to a public cord blood bank; the tissue collections go towards research programs.
Cord blood is used to treat children with cancerous blood disorders such as leukaemia, or genetic blood diseases like Fanconi anaemia. The cord blood is transplanted into the patient, where the HSCs can make new, healthy blood cells to replace those damaged by the patient’s disease or by a medical treatment such as chemotherapy for cancer.
Umbilical cords have traditionally been viewed as disposable biological by-product. Cord blood, however, is rich in multi-potent hematopoietic stem cells (HSCs). Recent medical advances have indicated that these stem cells found in cord blood can be used to treat the same disorders as the hematopoietic stem cells found in bone marrow and in the bloodstream but without some of the disadvantages of these types of transplants. Cord blood is currently used to treat approximately 70 diseases including leukemias, lymphomas, anemias, and Severe Combined Immunodeficiency (SCID). Six thousand patients worldwide have been treated with cord blood stem cell transplants, although the FDA considers the procedure to be experimental. These multipotent stem cells also show promise for the treatment of a variety of diseases and disorders other than those affecting the blood.
Several research teams have reported studies in animals suggesting that cord blood can repair tissues other than blood, in diseases ranging from heart attacks to strokes. These findings are controversial: scientists often cannot reproduce such results and it is not clear HOW cord blood may be having such effects. When beneficial effects are observed they may be very slight and not significant enough to be useful for developing treatments. If there are positive effects, they might be explained not by cord blood cells making nerve or heart cells, but by the cells in the cord blood releasing substances that help the body repair damage.
According to Cord Blood Registry, cord blood is defined as “the blood that remains in your baby’s umbilical cord after the cord has been cut, is a rich source of unique stem cells that can be used in medical treatments.” Cord blood has been shown to help treat over 80 diseases, such as leukemia, other cancers, and blood disorders. This cord blood, which can be safely removed from your newborn’s already-cut umbilical cord, can be privately stored for the purpose of possible use in the future for your child or family member. (It can also be donated to a public bank, but this is not widely available)
If clients need to use the cord blood stem cells stored with CBR for transplantation and the cells fail to engraft, clients receive a full refund of all fees paid to CBR for cord blood services plus an additional $50,000.
The University of Texas Health Science Center at Houston is conducting a pioneering FDA-regulated phase I/II clinical trial to compare the safety and effectiveness of two forms of stem cell therapy in children diagnosed with cerebral palsy. The randomized, double-blinded, placebo-controlled study aims to compare the safety and efficacy of an intravenous infusion of autologous cord blood stem cells to bone marrow stem cells.
Stem cells from cord blood can be used for the newborn, their siblings, and potetinally other relatives. Patients with genetic disorders like cystic fibrosis, cannot use their own cord blood and will need stem cells from a sibling’s cord blood. In the case of leukemia or other blood disorders, a child can use either their own cord blood or their sibling’s for treatment.
ViaCord’s Lab is FDA registered, AABB accredited, CLIA certified and equipped with the same freezers used by major research institutions such as Centers for Disease Control and Prevention and the National Institutes of Health.
Cord blood is also being studied as a substitute for normal blood transfusions in the developing world. More research is necessary prior to the generalized utilization of cord blood transfusion.
Another way scientists are working with stem cells is through expansion technologies that spur replication of the cord blood stem cells. If proven effective and approved by the U.S. Food and Drug Administration, these expansion technologies will allow scientists to culture many stem cells from a small sample. This could provide doctors and researchers with enough stem cells to treat multiple family members with one cord blood collection or provide the baby with multiple treatments over time. To better prepare for the day when these expansion technologies are more easily accessible, some cord blood banks have begun to separate their cord blood collections into separate compartments, which can easily be detached from the rest of the collection and used independently. You can learn more about Cryo-Cell’s five-chambered storage bag here.
When considering cord blood, cord tissue, and placenta tissue banking, you want all of the facts. Americord’s® Cord Blood Comparison Chart gives you information not only on our costs and services, but also on how other companies measure up.
Cord blood does not have to be as closely matched as bone marrow or peripheral blood transplants. Bone marrow transplants typically require a 6/6 HLA match. While a closely matched cord blood transplant is preferable, cord blood has been transplanted successfully with as few as 3/6 matches. For patients with uncommon tissue types, cord blood may be an option if a suitable adult donor cannot be found. Since cord blood is cryogenically preserved and stored, it is more readily available than bone marrow or peripheral blood from an unrelated donor, allowing transplants to take place within a shorter period of time. It takes approximately two weeks to locate, transfer, and thaw a preserved cord blood unit. Finding a suitable bone marrow donor typically takes at least two months.
The term “cord blood” is used for the blood remaining in the umbilical cord and the placenta after the birth of a baby. Cord Blood contains stem cells that can grow into blood and immune system cells, as well as other types of cells. Today cord blood is often used as a substitute for bone marrow in stem cell transplants. There are over 80 diseases treated this way, including cancers, blood disorders, genetic and metabolic diseases.