The European Group on Ethics in Science and New Technologies (EGE) has also adopted a position on the ethical aspects of umbilical cord blood banking. The EGE is of the opinion that “support for public cord blood banks for allogeneic transplantations should be increased and long term functioning should be assured.” They further stated that “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.”
As noted earlier, with better matching, there is a greater chance of success and less risk of graft-versus-host disease (GvHD) in any stem cell transplant. With cord blood, the baby’s own cells are always a perfect match and share little risk. When using cord blood across identical twins, there is also a very low chance of GvHD although mutations and biological changes caused by epigenetic factors can occur. Other blood-related family members have a 35%–45% chance of GvHD, and unrelated persons have a 60%–80% chance of suffering from GvHD.
CBR Clients: Did you know that when you refer a friend, and they preserve their baby’s stem cells with us, you receive a free year of cord blood storage? After your first referral, you start earning even more rewards. (Exclusions apply): bit.ly/2Lk9enq pic.twitter.com/6g7QrMiegc
No one knows how stem cells will be used in the future, but researchers hope that they may be used to treat many conditions, like Alzheimer’s, diabetes, heart failure, spinal cord damage, and other conditions.
However, parents should know that a child’s own cord blood (stored at birth), would rarely be suitable for a transplant today. It could not be used at present to treat genetic diseases, for example, because the cord blood stem cells carry the same affected genes and. if transplanted, would confer the same condition to the recipient. (See the story of Anthony Dones.) In addition, most transplant physicians would not use a child’s own cord blood to treat leukemia. There are two reasons why the child’s own cord blood is not safe as a transplant source. First, in most cases of childhood leukemia, cells carrying the leukemic mutation are already present at birth and can be demonstrated in the cord blood. Thus, pre-leukemic cells may be given back with the transplant, since there is no effective way to remove them (purge) today. Second, in a child with leukemia, the immune system has already failed to prevent leukemia. Since cord blood from the same child re-establishes the child’s own immune system, doctors fear it would have a poor anti-leukemia effect.
In the procurement of embryonic stem cells for research, the embryo from which the cells are harvested is destroyed. For those who believe that human life begins at conception this research is obviously unethical. In contrast, adult stem cells can be isolated from tissue from a consenting patient. While cord blood stem cells are classified as adult stem cells, they appear to have greater potency (ability to differentiate into other cell types) than other adult stem cells, making them a potentially valuable option for use in a variety of treatments and therapies. Cord blood stem cells offer some of the advantages of ESCs without any of the ethical drawbacks. Research into the use of cord blood stem cells for the treatment of disease and disability is a promising and ethical avenue of stem cell research.
^ a b c d e f Juric, MK; et al. (9 November 2016). “Milestones of Hematopoietic Stem Cell Transplantation – From First Human Studies to Current Developments”. Frontiers in Immunology. 7: 470. doi:10.3389/fimmu.2016.00470. PMC 5101209 . PMID 27881982.
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.
The cord blood collection process is simple, safe, and painless. The process usually takes no longer than five minutes. Cord blood collection does not interfere with delivery and is possible with both vaginal and cesarean deliveries.
While donating cord blood is honorable, there is a lot people do not know about the public option. Most public cord blood banks have a limited number of collection sites, and they only retain a small number of collections because of volume and other criteria that must be met. Once cord blood is donated, it is highly unlikely that the donation can ever be attained by the donor or his or her family if the need arises. In addition, it may be hard to find another viable match from what is publically available. While donating is free, retreiving a cord blood sample from a public cord blood bank is not and pales in comparison to the overall cost of privately banking cord blood. These are just some of the reasons why privately banking cord blood may be a better option for some families.
Stem Cell Storage is not included in their price. Viacord and Cord Blood Registry both charge for annual storage. This means that when you pay for your initial cord blood and/or cord tissue storage you will also have to pay annually for storage.
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.
There is not one right answer. Your family’s medical history and personal preferences will play a major role in this decision process. However, we can help you make sense of the available options. Continue to follow our guide on cord blood to understand what is the best choice for your family.
Another type of cell that can also be collected from umbilical cord blood are mesenchymal stromal cells. These cells can grown into bone, cartilage and other types of tissues and are being used in many research studies to see if patients could benefit from these cells too.
StemCyte is a global cord blood therapeutics company. StemCyte participates in the US network of public cord blood banks operated by Be The Match. In addition, StemCyte operates the National Cord Blood Bank of Taiwan, whose units are also listed with Be The Match.
Private cord blood banking can benefit those with a strong family history of certain diseases that harm the blood and immune system, such as leukemia and some cancers, sickle-cell anemia, and some metabolic disorders. Parents who already have a child (in a household with biological siblings) who is sick with one of these diseases have the greatest chance of finding a match with their baby’s cord blood. Parents who have a family history of autism, Alzheimer’s, and type 1 diabetes can benefit from cord blood. Although these diseases aren’t currently treated with umbilical cord steam cells, researchers are exploring ways to treat them (and many more) with cord blood.
As cord blood is inter-related to cord blood banking, it is often a catch-all term used for the various cells that are stored. It may be surprising for some parents to learn that stored cord blood contains little of what people think of as “blood,” as the red blood cells (RBCs) can actually be detrimental to a cord blood treatment. (As we’ll discuss later, one of the chief goals of cord blood processing is to greatly reduce the volume of red blood cells in any cord blood collection.)
When all the processing and testing is complete, the cord blood stem cells are frozen in cryogenic nitrogen freezers at -196° C until they are requested for patient therapy. Public banks are required to complete the entire laboratory processing and freeze the cord blood stem cells within 48 hours of collection. This is to insure the highest level of stem cell viability. The accreditation agencies allow family banks a window of 72 hours.
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.
Collecting The collection for family banking can occur virtually anywhere. Public banks collect cord blood at only a limited number of locations. Can occur virtually anywhere Only a limited number of locations
“One of the wonderful things about cord blood is that unlike bone marrow, you don’t always need a perfect match in order for it to work,” says Dr. Kurtzberg, who performed the first unrelated cord-blood transplant in the U.S. And it was a public donation that ultimately saved Anthony Dones. Within a week of starting a search, the National Cord Blood Program, a public bank operated by the New York Blood Center, found a “close enough” match. Had the now-3-year-old been forced to rely on a bone-marrow match, he might still be waiting.
Since the first successful sibling-to-sibling cord-blood stem-cell transplant was performed in 1988 to treat a genetic disorder called Fanconi’s anemia, more than 20 private banks have opened. And they seem to have the address of every expectant couple in America — whose mailboxes bulge with brochures encouraging them to take advantage of this once-in-a-lifetime opportunity. “Cord-blood banking is like insurance to protect your family against unforeseeable events,” says Stephen Grant, cofounder and senior vice president of Cord Blood Registry, a large California-based private bank. “You do it out of love and responsibility for your family. Sure, you hope you’ll never have to use the blood, but if you do, it’ll be there.”
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 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.
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.)
Some public banks offer sibling-directed donation programs where you can donate cord blood and designate it for use by your baby’s full sibling if that sibling has been diagnosed with a disease for which a cord blood transplant is considered standard treatment.
To save money, public banks will not even process a cord blood donation unless they know in advance that they are going to keep it. When the collection first arrives at the lab, it is passed through a cell counting machine. Only collections that have at least 900 million nucleated cells are kept. As a result, over 60%-80% of cord blood donations are discarded. The public bank must absorb the expense of the collection kit and delivery charges for discarded blood; typically $100 per unit.
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.
Collection hospitals for the NY Blood Center do NOT require advance registration: mothers can give a partial consent to collect the cord blood during labor, and only if the collected cord blood is suitable for transplantation will the mothers will be given additional education and asked for a final banking consent post-delivery.
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.
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.
Once considered medical waste, the blood left in the umbilical cord after a baby’s delivery is now known to be a rich source of stem cells similar to those in bone marrow. It’s been used in transplants to treat more than 70 different diseases including leukemia, lymphoma, sickle-cell disease, and some metabolic disorders. Unlike with marrow, which is obtained through a painful medical procedure and replenished by the body, there’s only one chance to collect this seemingly magical elixir: immediately after a baby’s birth.
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?
Editor’s Note: This article originally appeared in the Volume 16, Number 1, Spring 2009 issue of Dignitas, the Center’s quarterly publication. Subscriptions to Dignitas are available to CBHD Members. To learn more about the benefits of becoming a member click here.
As the research into umbilical cord blood and it’s therapeutic use for blood diseases has grown, so has the question as to whether people should privately store the cord blood of their offspring for future use. A recent paper on this issue by Mahendra Rao and colleagues advocates the practice of cord blood banking (for treatment of blood diseases) but in the context of public cord blood banks rather than a private cord blood banks. Any adult needing treated would need at least two cord blood samples that are immune compatible. So one sample will not be sufficient. A child might only need one cord blood sample but in the case of childhood leukaemia there is a risk that pre-leukemic cells are present in cord blood sample – and so the child could not use their own cells for therapy.
Cord blood (short for umbilical cord blood) is the blood that remains in the umbilical cord and placenta post-delivery. At or near term, there is a maternal–fetal transfer of cells to boost the immune systems of both the mother and baby in preparation for labor. This makes cord blood at the time of delivery a rich source of stem cells and other cells of the immune system. Cord blood banking is the process of collecting the cord blood and extracting and cryogenically freezing its stem cells and other cells of the immune system for potential future medical use.
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Experts believe that umbilical cord blood is an important source of blood stem cells and expect that its full potential for treatment of blood disorders is yet to be revealed. Other types of stem cell such as induced pluripotent stem cells may prove to be better suited to treating non-blood-related diseases, but this question can only be answered by further research.
When a child develops a condition that can be treated with stem cells, they undergo transplant. A doctor infuses stem cells from cord blood or bone marrow into the patient’s bloodstream, where they will turn into cells that fight the disease and repair damaged cells—essentially, they replace and rejuvenate the existing immune system.
^ 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.