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Cord blood is the blood from the baby that is left in the umbilical cord and placenta after birth. It contains special cells called hematopoietic stem cells that can be used to treat some types of diseases.
In this way, cord blood offers a useful alternative to bone marrow transplants for some patients. It is easier to collect than bone marrow and can be stored frozen until it is needed. It also seems to be less likely than bone marrow to cause immune rejection or complications such as Graft versus Host Disease. This means that cord blood does not need to be as perfectly matched to the patient as bone marrow (though some matching is still necessary).
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.
Why should you consider donating the cord blood to a public bank? Simply because, besides bringing a new life into the world, you could be saving an individual whose best chance at life is a stem cell transplant with your baby’s donated cord blood. This can only happen if you donate and if your baby is a close enough match for a patient in need. If you chose to reserve the cord blood for your family, then siblings who have the same parents have a 25% chance of being an exact match.
Umbilical cord blood is the blood left over in the placenta and in the umbilical cord after the birth of the baby. The cord blood is composed of all the elements found in whole blood. It contains red blood cells, white blood cells, plasma, platelets and is also rich in hematopoietic stem cells. There are several methods for collecting cord blood. The method most commonly used in clinical practice is the “closed technique”, which is similar to standard blood collection techniques. With this method, the technician cannulates the vein of the severed umbilical cord using a needle that is connected to a blood bag, and cord blood flows through the needle into the bag. On average, the closed technique enables collection of about 75 ml of cord blood.
^ Reddi, AS; Kuppasani, K; Ende, N (December 2010). “Human umbilical cord blood as an emerging stem cell therapy for diabetes mellitus”. Current stem cell research & therapy. 5 (4): 356–61. doi:10.2174/157488810793351668. PMID 20528762.
Checked to make sure it has enough blood-forming cells for a transplant. (If there are too few cells, the cord blood unit may be used for research to improve the transplant process for future patients or to investigate new therapies using cord blood, or discarded.)
“This reanalysis supports several previously expressed opinions that autologous [to use one’s OWN cells] banking of cord blood privately as a biological insurance for the treatment of life-threatening diseases in children and young adults is not clinically justified because the chances of ever using it are remote. The absence of published peer-reviewed evidence raises the serious ethical concern of a failure to inform prospective parents about the lack of future benefit for autologous cord banking … Attempts to justify this [commercial cord blood banking] are based on the success of unrelated public domain cord banking and allogeneic [using someone ELSE’S cells] cord blood transplantation, and not on the use of autologous [the person’s OWN cells] cord transplantation, the efficacy of which remains unproven”.
Americord is committed to playing an important role in the growth of this new industry. This section of the website was created for you. To facilitate valuable communications within our industry we will post scientific information about our own processes and research as well as information that is being published about research being done throughout our industry, all of which is meant to offer additional resources for you.
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Prior to freezing the cells, samples are taken for quality testing. Banks measure the number of cells that are positive for the CD34 marker, a protein that is used to estimate the number of blood-forming stem cells present. Typical cost, $150 to $200 per unit. They also measure the number of nucleated cells, another measure of stem cells, both before and after processing to determine the cell recovery rate. Typical expense, $35 per unit. A portion of the sample is submitted to check that there is no bacterial or fungal contamination. Typical expense, $75 per unit. Public banks will also check the ability of the sample to grow new cells by taking a culture called the CFU assay. Typical expense, $200 to $250 per unit.
Sometimes, not enough cord blood can be collected. This problem can occur if the baby is preterm or if it is decided to delay clamping of the umbilical cord. It also can happen for no apparent reason. If an emergency occurs during delivery, priority is given to caring for you and your baby over collecting cord blood.
^ a b c American Academy of Pediatrics Section on Hematology/Oncology; American Academy of Pediatrics Section on Allergy/Immunology; Lubin, BH; Shearer, WT (January 2007). “Cord blood banking for potential future transplantation”. Pediatrics. 119 (1): 165–70. doi:10.1542/peds.2006-2901. PMID 17200285.
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.
Your cells didn’t start out knowing how to come together to form your bones, heart or blood; they begun with more of a blank slate. These completely undifferentiated cells can be found during gestation, or the time the baby is in the womb, and are called embryonic stem cells. These early stage stem cells are master cells that have the potential to become any type of cell in the body.
In most cases, the success of allogeneic transplantation depends in part on how well the HLA antigens of the donor’s stem cells match those of the recipient’s stem cells. The higher the number of matching HLA antigens, the greater the chance that the patient’s body will accept the donor’s stem cells. In general, patients are less likely to develop a complication known as graft-versus-host disease (GVHD) if the stem cells of the donor and patient are closely matched.
Most stored cord blood is discarded. At public cord blood banks, a unit of stored cord blood has a greater chance of being used to help a sick child or used toward stem cell research. Private cord blood banks, on the other hand, eventually throw away blood that a family no longer wants to store or use.
* Annual storage fees will be charged automatically to the credit/debit card on file, on or around your baby’s birthday, unless you’ve chosen a prepay option and are subject to change until they are paid.
The first successful cord blood transplant (CBT) was done in 1988 in a child with Fanconi anemia. Early efforts to use CBT in adults led to mortality rates of about 50%, due somewhat to the procedure being done in very sick people, but perhaps also due to slow development of immune cells from the transplant. By 2013, 30,000 CBT procedures had been performed and banks held about 600,000 units of cord blood.
Cord Blood Registry® (CBR®) is the world’s largest newborn stem cell company. Founded in 1992, CBR is entrusted by parents with storing samples from more than 600,000 children. CBR is dedicated to advancing the clinical application of cord blood and cord tissue stem cells by partnering with institutions to establish FDA-regulated clinical trials for conditions that have no cure today.
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.
Tissue typed and listed on the registry of the C.W. Bill Young Cell Transplantation Program, also called the Be The Match Registry®. (The registry is a listing of potential marrow donors and donated cord blood units. When a patient needs a transplant, the registry is searched to find a matching marrow donor or cord blood unit.)
An HLA match helps ensure the body accepts the new cell and the transplant is successful. It also reduces the risk of graft-versus-host disease (GVHD), which is when the transplanted cells attack the recipient’s body. GVHD occurs in 30%–40% of recipients when they aren’t a perfect match but the donor is still related. If the donor and recipient are not related, it increases to a 60%–80% risk. The better the match, the more likely any GVHD symptoms will be mild, if they suffer from GVHD at all. Unfortunately, GVHD can also be deadly.
The baby’s cord blood will be processed and stored in a laboratory facility, often referred to as a blood bank. The cord blood should be processed and stored in a facility that is accredited by the American Association of Blood Banks (AABB) for the purpose of handling stem cells.
Banking a baby’s blood and stem cells in a cord blood bank is a type of insurance. Ideally, you would not need to access your baby’s stem cells in order to address a medical concern. However, using a cord blood bank can provide peace of mind in knowing that you have a valuable resource if you need it.
The Leading the Way LifeSaving Ambassadors Club is a recognition program honoring sponsor groups for outstanding performance in reaching or exceeding blood drive collections goals. CBC presents a Leading the Way plaque to winning sponsors on an annual basis. The award is based on three levels of achievement:
^ a b Thornley, I; et al. (March 2009). “Private cord blood banking: experiences and views of pediatric hematopoietic cell transplantation physicians”. Pediatrics. 123 (3): 1011–7. doi:10.1542/peds.2008-0436. PMC 3120215 . PMID 19255033.
There are some diseases on the list (like neuroblastoma cancer) where a child could use his or her own cord blood. However, most of the diseases on the proven treatment list are inherited genetic diseases. Typically, a child with a genetic disease would require a cord blood unit from a sibling or an unrelated donor.
The longest study to date, published in 2011 by Broxmeyer at al found that stem cells cyro-preserved for 22.5 years engrafted as expected. There was no significant loss of stem cell recovery or proliferation.
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.
As most parents would like to bank their babies’ cord blood to help safeguard their families, it is often the cost of cord blood banking that is the one reason why they do not. Most cord blood banks have an upfront fee for collecting, processing and cryo-preserving the cord blood that runs between $1,000 and $2,000. This upfront fee often also includes the price of the kit provided to collect and safely transport the cord blood, the medical courier service used to expedite the kit’s safe shipment, the testing of the mother’s blood for any infectious diseases, the testing of the baby’s blood for any contamination, and the cost of the first full year of storage. There is then often a yearly fee on the baby’s birthday for continued storage that runs around $100 to $200 a year.
At present, the odds of undergoing any stem cell transplant by age 70 stands at one in 217, but with the continued advancement of cord blood and related stem and immune cell research, the likelihood of utilizing the preserved cord blood for disease treatment will continue to grow. Read more about cord blood as a regenerative medicine here.