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Laughlin MJ, Rizzieri DA, Smith CA, et al. Hematologic engraftment and reconstitution of immune function post unrelated placental cord blood transplant in an adult with acute lymphocytic leukemia. Leuk Res.1998;22 :215– 219
Cord blood, which is harvested from the umbilical cord right after a baby is born, is marketed as a treatment for diseases such as leukemia and sickle cell disease, and as a potential source of cells for regenerative medicine – a cutting-edge field of medicine studying how to repair tissues damaged by everything from heart disease to cerebral palsy.
There are so many things to think about when you have a child. One of them is the blood from your baby’s umbilical cord (which connects the baby to the mother while in the womb). It used to be thrown away at birth, but now, many parents store the blood for the future health of their child. Should you do it?
Rubinstein P, Dobrila L, Rosenfield RE, et al. Processing and cryopreservation of placental/umbilical cord blood for unrelated bone marrow reconstitution. Proc Natl Acad Sci USA. 1995;92 :10119– 10122
Because of their ability to regenerate, umbilical cord stem cells may provide the answers to conditions such as various forms of heart disease and diabetes. Medical researchers studying umbilical cord blood stem cells have recorded several positive observations in animal studies, including instances where cord blood stem cells have improved vascular functions in injured tissue, as well as blood flow and improved overall heart function.
An alternative to a related donor involves seeking unrelated HLA-matched adult allogeneic donors outside of the family.2,6,11 There are more than 7 million potential unrelated volunteer adult donors registered in the National Marrow Donor Program registry.17 Although the number of patients who receive unrelated adult allogeneic donor stem cell transplants continues to increase each year, many patients are unable to find a fully matched donor, which diminishes access to transplantation therapy. Nonwhite patients have a lower chance of identifying a fully matched unrelated adult donor because of genetic heterogeneity and lack of nonwhite donors. Over the past decade, unrelated-donor, banked umbilical cord blood has been shown to contain sufficient numbers of stem cells for successful transplantation between unrelated, partially HLA-mismatched individuals.19–23 With advances in the clinical practice of cord blood transplantation, most patients unable to find a fully matched adult donor can identify a partially matched cord blood donor.
However, this does not mean more is better. Cord blood banks we reviewed are similar in terms of the quality of services they provided. Affordable services are still available, especially with the different discount options offered by many of the top cord blood banks reviewed.
One of the factors that influence engraftment time is cell dose (Gunning, 2007). Cell dose is directly related to the volume of umbilical cord blood collected. Cell dose refers to the amount of useful stem cells in the sample of blood. Because of the limited volume of cells collected from cord blood, the amount of stem cells in cord blood is approximately 10% less than the amount obtained from bone marrow (Moise, 2005). A single unit of umbilical cord blood usually contains 50 to 200 ml of blood (Gonzalez-Ryan et al., 2000). If an amount of cord blood is less than this minimum volume, the unit is discarded as being unsatisfactory because the cell dose of the sample would not be high enough. Collecting an insufficient volume of cord blood occurs in about 50% or more cases of cord blood collection (Drew, 2005). In general, fewer stem cells are needed for cord blood transplantation, and usually a volume of 50 to 100 ml of cord blood will provide enough of a cell dose for a child or small adult. However, should the recipient need additional stem cells, it is impossible to obtain more stem cells from the infant because the cord blood volume is a limited amount (Percer, 2009).
Physicians or other professionals who recruit pregnant women and their families for for-profit placental cord blood stem cell banking should disclose any financial interest or other potential conflict of interest they have in the procedure to their patients.
Takahashi S, Iseki T, Ooi J, et al. Single-institute comparative analysis of unrelated bone marrow transplantation and cord blood transplantation for adult patients with hematologic malignancies. Blood.2004;104 :3813– 3820
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.
Umbilical cord blood units are made available for research studies intended to improve patient outcomes, as stated in the Stem Cell Therapeutic and Research Act of 2005, Public Law 109-129, and the Stem Cell Therapeutic and Research Reauthorization Act of 2010, Public Law 111-264.
Your own cord blood will always be accessible. This applies only if you pay to store your cord blood at a private bank. The blood is reserved for your own family; nobody else can access or use it, and it will never be allotted to another family or be donated to research. If you donate your cord blood to a public bank, on the other hand, anyone who needs compatible cord blood can have it; there’s no guarantee that it will be available if and when your family needs it.
If you intend donating umbilical cord blood for preservation and later use, you should let your doctor know by your 34th week so that they can help make any arrangements with a cord blood bank. Once you and your doctor have decided on which cord blood bank to use, you will often be sent informational reading materials from the cord blood bank for further education regarding the process of cord blood harvesting.
Chandy M, Balasubramanian P, Ramachandran SV, et al. Randomized trial of two different conditioning regimens for bone marrow transplantation in thalassemia: the role of busulfan pharmacokinetics in determining outcome. Bone Marrow Transplant.2005;36 :839– 845
The information on this site is not intended or implied to be a substitute for professional medical advice, diagnosis or treatment. All content, including text, graphics, images, and information, contained on or available through this website is for general information purposes only. The purpose of this is to help with education and create better conversations between patients and their healthcare providers.
Cord blood banking means preserving the newborn stem cells found in the blood of the umbilical cord and the placenta. After a baby is born, and even after delayed cord clamping, there is blood remaining in the umbilical cord and placenta that holds valuable newborn stem cells. Parents have a choice between donating cord blood to a public bank for free, or paying to store it for their family in a private bank. Cord blood banking includes the whole process from collection through storage of newborn stem cells for future medical purposes.
Umbilical cord blood was once thought of as a waste product. Now, years after the first successful umbilical cord blood transplant, more families seek information about whether or not to save their newborn’s cord blood. Childbirth educators may be one of the main sources that an expectant family depends on to gain more knowledge about cord blood banking in order to make an informed decision. Preserving umbilical cord blood in public banks is advisable for any family; however, it is recommended that expectant families only consider private cord blood banking when they have a relative with a known disorder that is treatable by stem cell transplants. The childbirth educator is encouraged to be well versed on the topic of cord blood banking, so that as questions from class participants arise, the topic can be explored and addressed appropriately.
Most of the diseases for which HSCT is a standard treatment are disorders of blood cell lineage. The proliferation by which blood cells are formed from stem cells is illustrated in the side graphic (click on the image to expand it); you can also read about specific cell types in the immune system in more detail. In the United States, most health insurance providers will pay for a stem cell transplant if it is a “standard therapy” for the patient’s diagnosis.
There are around 20 companies in the United States offering public cord blood banking and 34 companies offering private (or family) cord blood banking. Public cord blood banking is completely free (collecting, testing, processing, and storing), but private cord blood banking costs between $1,400 and $2,300 for collecting, testing, and registering, plus between $95 and $125 per year for storing. Both public and private cord blood banks require moms to be tested for various infections (like hepatitis and HIV).
Well, this is how the entire procedure of cord blood banking. Right after the blood is extracted, it is sent for to the bank. In the bank, the cord blood is checked, tested, processed and finally preserved. This preservation is ensured by controlled freezing under high end freezing conditions. Certain private banks collect a certain segment of the umbilical cord along with the cord blood. The umbilical cord tissue contains various stem cells that are quite different from the general cord blood cells. Research experts are studying in order to understand the possible use of the stem cells in medicine.
As a result of these advances, it is not unreasonable to hope that cord blood may eventually be used to treat a wider variety of auto-immune and degenerative diseases than is currently being done. If so, (and there are solid indications by researchers that this indeed is the case), it makes perfect sense to consider private cord blood banking.
Back in the 1980s, umbilical cord blood caught the attention of researchers who suspected that the often-discarded tissue could be a valuable source of shape-shifting stem cells. These cells, which can become several different types of blood cells, are similar to the specialized stem cells found in bone marrow that can churn out new blood cells. Such stem cells are found in adult blood, too, but not as abundantly.
In a number of genetic, hematologic, immunologic, metabolic, and oncologic disorders, reconstitution of bone marrow (transplantation) can be a potentially life-saving procedure.1–16 Allogeneic (related or unrelated) or autologous (self) bone marrow or peripheral blood stem cells are the usual sources of hematopoietic progenitor cells to achieve this goal. If autologous stem cells are not available or cannot be used, the best option for successful reconstitution therapy is to secure stem cells from an HLA-matched sibling.1,3,11 Close matching confers a higher probability of successful engraftment and minimizes the risk of potentially fatal graft-versus-host disease. Unfortunately, there is only a 25% chance for identifying a full HLA match in a sibling donor.17,18
New England Cord Blood Bank was founded in 1971 and is one of the pioneers in processing and cryopreservation of human cells and tissue. The company is continuing to expand its research and development center.
Currently, cord blood stem cells have been approved by the FDA in the treatment nearly 80 diseases. In addition to these approved regenerative therapies, there are close to 350 clinical trials underway investigating the use of umbilical cord blood and umbilical cord tissue for stem cell transplantation, and this number promises to steadily increase. Cord blood stem cells are approved for numerous types of malignancies, anemias, inherited metabolic disorders and deficiencies of the immune system. The majority of cord blood transplants to date have been performed in patients younger than 18 years; however, advancements in regenerative medicine show promise for all ages. See all the diseases currently being treated.
Properly preserved cord blood is long-lasting. Cord blood is stored in a nitrogen freezer (the same technology used to freeze donated sperm), so it can last for a long time. “The scientist who first developed cord blood preservation methods in 1990 has confirmed that some of the first specimens he stored 23 plus years ago are just as potent as fresh cord blood,” says Mary Halet, Director, Central Region at Be The Match, which is operated by the National Bone Marrow Foundation.