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To minimize potential side effects, doctors most often use transplanted stem cells that match the patient’s own stem cells as closely as possible. People have different sets of proteins, called human leukocyte-associated (HLA) antigens, on the surface of their cells. The set of proteins, called the HLA type, is identified by a special blood test.
Therapies with cord blood have gotten more successful. “The outcomes of cord blood transplants have improved over the past 10 years because researchers and clinicians have learned more about dosing cord blood, picking better matches, and giving the patient better supportive care as they go through the transplant,” says Joanne Kurtzberg, M.D., director of the pediatric bone marrow and stem cell transplant program at Duke University.
Just like other blood donations, there is no cost to the donor of cord blood. If you do not choose to store your baby’s blood, please consider donating it. Your donation could make a difference in someone else’s life.
A “tandem transplant” is a type of autologous transplant. This method is being studied in clinical trials for the treatment of several types of cancer, including multiple myeloma and germ cell cancer. During a tandem transplant, a patient receives two sequential courses of high-dose chemotherapy with stem cell transplant. Typically, the two courses are given several weeks to several months apart. Researchers hope that this method can prevent the cancer from recurring (coming back) at a later time.
Unlike other banks, CBR uses a seamless cryobag for storage. The seamless construction decreases the potential for breakage that can occur in traditional, seamed-plastic storage bags. Prior to storage, each cryobag is placed in a second overwrap layer of plastic, which is hermetically sealed as an extra precaution against possible cross contamination by current and yet unidentified pathogens that may be discovered in the future. CBR stores the stem cells in vaults, called dewars, specially designed for long-term cryostorage. The cord blood units are suspended above a pool of liquid nitrogen that creates a vapor-phase environment kept at minus 196 degrees Celsius. This keeps the units as cold as liquid nitrogen without immersing them in liquid, which can enable cross-contamination. Cryopreserved cord blood stem cells have proven viable after more than 20 years of storage, and research suggests they should remain viable indefinitely.
After entering the bloodstream, the stem cells travel to the bone marrow, where they begin to produce new white blood cells, red blood cells, and platelets in a process known as “engraftment.” Engraftment usually occurs within about 2 to 4 weeks after transplantation. Doctors monitor it by checking blood counts on a frequent basis. Complete recovery of immune function takes much longer, however—up to several months for autologous transplant recipients and 1 to 2 years for patients receiving allogeneic or syngeneic transplants. Doctors evaluate the results of various blood tests to confirm that new blood cells are being produced and that the cancer has not returned. Bone marrow aspiration (the removal of a small sample of bone marrow through a needle for examination under a microscope) can also help doctors determine how well the new marrow is working.
Current research aims to answer these questions in order to establish whether safe and effective treatments for non-blood diseases could be developed in the future using cord blood. An early clinical trial investigating cord blood treatment of childhood type 1 diabetes was unsuccessful. Other very early stage clinical trials are now exploring the use of cord blood transplants to treat children with brain disorders such as cerebral palsy or traumatic brain injury. However, such trials have not yet shown any positive effects and most scientists believe much more laboratory research is needed to understand how cord blood cells behave and whether they may be useful in these kinds of treatments
You and your baby’s personal information are always kept private by the public cord blood bank. The cord blood unit is given a number at the hospital, and this is how it is listed on the registry and at the public cord blood bank.
Banking of stem cells from cord blood began in 1994 with the foundation of the New York Blood Centre Cord Blood Bank. The field of umbilical cord blood storage has matured considerably over the last two decades. We continue to learn more about the long-term effects of cryo-preservation on the cells, which has resulted in increased storage times.
After your baby is born, the umbilical cord and placenta are usually thrown away. Because you are choosing to donate, the blood left in the umbilical cord and placenta will be collected and tested. Cord blood that meets standards for transplant will be stored at the public cord blood bank until needed by a patient. (It is not saved for your family.)
Cord blood holds promise for future medical procedures. Scientists are still studying more ways to treat more diseases with cord blood. At Duke University, for example, researchers are using patients’ own cord blood in trials for cerebral palsy and Hypoxic ischemic encephalopathy (a condition in which the brain does not receive enough oxygen). Trials are also under way for the treatment of autism at the Sutter Neuroscience Institute in Sacramento, California.
If you want the blood stored, after the birth, the doctor clamps the umbilical cord in two places, about 10 inches apart, and cuts the cord, separating mother from baby. Then she inserts a needle and collects at least 40 milliliters of blood from the cord. The blood is sealed in a bag and sent to a lab or cord blood bank for testing and storage. The process only takes a few minutes and is painless for mother and baby.
Umbilical cord blood is being studied for potential use in a wide variety of life-threatening diseases because it is a rich source of blood stem cells. Transplantation of blood stem cells from umbilical cords has been used successfully to treat several pediatric blood diseases, including sickle cell anemia and cancers such as leukemia and lymphoma. This procedure is still considered investigational. There is currently no solid evidence that umbilical cord blood stem cells have the ability to be transformed into other types of cells, such as replacement nerve tissue or myelin-making cells.
Along with cord blood, Wharton’s jelly and the cord lining have been explored as sources for mesenchymal stem cells (MSC), and as of 2015 had been studied in vitro, in animal models, and in early stage clinical trials for cardiovascular diseases, as well as neurological deficits, liver diseases, immune system diseases, diabetes, lung injury, kidney injury, and leukemia.
Anthony’s doctors found a match for him through the New York Blood Center’s National Cord Blood Program, a public cord blood bank. Unlike private banks, public banks do not charge to collect cord blood, they charge a patients insurance company when cells are used. And once it is entered in the public system, the blood is available to anyone who needs it.
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.
Prices subject to change until they are paid. Fees apply to single-birth, U.S. customers only. Cancellation fees may apply. All major credit cards accepted. Payment plans cover first-year fees only; future annual storage fees are not included. If not paying by credit/debit card, total first year fees are due at the time of enrollment.
Cord blood can’t be used to treat everything. If your child is born with a genetic condition such as muscular dystrophy or spina bifida, then the stem cells would have that condition, says Dr. Kurtzberg. But if the cord blood donor is healthy and there is a sibling or another immediate family member who has a genetic condition, the cord blood could be a good match for them.
Options for Umbilical Cord Blood Banking and Donation—As expectant parents, learn how umbilical cord blood can help others through public donation, family (private) cord blood banking, or directed donation for a biological sibling.
Patients with leukemia, lymphoma, or certain inherited metabolic or immune system disorders have diseased blood-forming cells. For some patients, an umbilical cord blood or bone marrow transplant (also called a BMT) may be their best treatment option.
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.
Umbilical cord blood stem cells are different from embryonic stem cells. Umbilical cord blood stem cells are collected by your ob-gyn or a nurse from the umbilical cord after you give birth (but before your placenta is delivered). Embryonic stem cells are collected when a human embryo is destroyed.
Students who register to donate blood three or more times during their high school career earn a Red Cord to wear during graduation events. Seniors must complete the requirement by May 15 (or by the date of their school’s final blood drive of the year, whichever is later).
Because identical twins have the same genes, they have the same set of HLA antigens. As a result, the patient’s body will accept a transplant from an identical twin. However, identical twins represent a small number of all births, so syngeneic transplantation is rare.
When an immediate family member has a disease that requires a stem cell transplant, cord blood from a newborn baby in the family may be the best option. There is a 25% chance, for example, that cord blood will be a perfect match for a sibling, because each child shares one of its two HLA genes with each parent. Occasionally cord blood will be a good match for a parent if, by chance, both parents share some of the six HLA antigens. The baby’s cord blood is less likely to be a good match for more distant relatives. The inventories of unrelated cord blood units in public cord blood banks are more likely to provide appropriate matches for parents and distant relatives, as well as for siblings that do not match.
Marketing materials by Viacord and Cord Blood Registry, the two largest companies, do not mention that cord blood stem cells cannot be used by the child for genetic diseases, although the fine print does state that cord blood may not be effective for all of the listed conditions.
Luckily for expectant parents, cord blood can be easily collected at the baby’s birth via the umbilical cord with no harm to the mother or baby. This is why pregnancy is a great time to plan to collect and bank a baby’s cord blood.
Dennis Michael Todd, PhD, joined Community Blood Services as its President and CEO in 2000. Community Blood Services operates the NJ Cord Blood Bank and The HLA Registry bone marrow donor center, both of which are affiliated with the National Marrow Donor Program (NMDP). In 2012, the blood center expects to distribute over 85,000 units of red cells and 20,000 platelets to hospitals and medical centers throughout northern NJ and Orange County, NY. Dr. Todd is presently a member of the NMDP Executive Committee and Chairman of the Finance Committee. He is a member of the International Society for Cellular Therapy (ISCT), the International Society for Stem Cell Research (ISSCR), the AABB, the American Association of Bioanalysts, and the New Jersey Society of Blood Bank Professionals.
Cord blood transplants aren’t entirely new — they’ve been in use for about 20 years. In fact, the outcome of transplants has improved in the last 10 years, says Joanne Kurtzberg, M.D., director of the pediatric bone marrow and stem cell transplant program at Duke University.
Private storage of one’s own cord blood is unlawful in Italy and France, and it is also discouraged in some other European countries. The American Medical Association states “Private banking should be considered in the unusual circumstance when there exists a family predisposition to a condition in which umbilical cord stem cells are therapeutically indicated. However, because of its cost, limited likelihood of use, and inaccessibility to others, private banking should not be recommended to low-risk families.” The American Society for Blood and Marrow Transplantation and the American Congress of Obstetricians and Gynecologists also encourage public cord banking and discourage private cord blood banking. Nearly all cord blood transplantations come from public banks, rather than private banks, partly because most treatable conditions can’t use a person’s own cord blood. The World Marrow Donor Association and European Group on Ethics in Science and New Technologies states “The possibility of using one’s own cord blood stem cells for regenerative medicine is currently purely hypothetical….It is therefore highly hypothetical that cord blood cells kept for autologous use will be of any value in the future” and “the legitimacy of commercial cord blood banks for autologous use should be questioned as they sell a service which has presently no real use regarding therapeutic options.”
The stored blood can’t always be used, even if the person develops a disease later on, because if the disease was caused by a genetic mutation, it would also be in the stem cells. Current research says the stored blood may only be useful for 15 years.