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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.
Cord blood is the blood that remains in the umbilical cord and placenta following birth. This blood is usually discarded. However, cord blood banking utilizes facilities to store and preserve a baby’s cord blood. If you are considering storing your baby’s cord blood, make sure to use a cord blood bank accredited by the American Association of Blood Banks (AABB), like Viacord.
Cord tissue use is still in early research stages, and there is no guarantee that treatments using cord tissue will be available in the future. Cord tissue is stored whole. Additional processing prior to use will be required to extract and prepare any of the multiple cell types from cryopreserved cord tissue. Cbr Systems, Inc.’s activities for New York State residents are limited to collection of umbilical cord tissue and long-term storage of umbilical cord–derived stem cells. Cbr Systems, Inc.’s possession of a New York State license for such collection and long-term storage does not indicate approval or endorsement of possible future uses or future suitability of these cells.
However, the American Academy of Pediatrics strongly encourages umbilical cord donations for general research purposes. Donors are encouraged to contact a cord blood bank by the 35th week of pregnancy.
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.
Donating your baby’s umbilical cord blood may offer a precious resource to a patient in need of a life-saving stem cell transplant. Umbilical cord blood is rich in blood-forming stem cells, which can renew themselves and grow into mature blood cells. After your baby is born, these cord blood cells can be collected, preserved and later used as a source of stem cells for transplantation for patients with leukemia, lymphoma, and other life-threatening blood diseases.
^ a b Walther, Mary Margaret (2009). “Chapter 39. Cord Blood Hematopoietic Cell Transplantation”. In Appelbaum, Frederick R.; Forman, Stephen J.; Negrin, Robert S.; Blume, Karl G. Thomas’ hematopoietic cell transplantation stem cell transplantation (4th ed.). Oxford: Wiley-Blackwell. ISBN 9781444303537.
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).
So what are your options? You have three choices. One is to store the cord blood with a private company at a cost to you ranging from $1,500 to $2,500 and an annual storage fee in the ballpark of $125. Secondly, you can donate the cord blood to a public bank, if there is one working with your hospital, and your doctor is on board with the idea. There are also public banks that accept mail-in donations, if you register during your second trimester and your doctor is willing to take a short training class on-line. Zero cost to you. The third option is to do nothing and have the cord blood, umbilical cord, and placenta destroyed as medical waste.
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.
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.
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).
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.
Umbilical cord blood is useful for research. For example, researchers are investigating ways to grow and multiply haematopoietic (blood) stem cells from cord blood so that they can be used in more types of treatments and for adult patients as well as children. Cord blood can also be donated altruistically for clinical use. Since 1989, umbilical cord blood transplants have been used to treat children who suffer from leukaemia, anaemias and other blood diseases.
Scientists first found ways to use stem cells in bone marrow, and following this discovery, the first stem cell transplant was performed in 1956 via bone marrow between identical twins. It resulted in the complete remission of the one twin’s leukemia.
Collected cord blood is cryopreserved and then stored in a cord blood bank for future transplantation. Cord blood collection is typically depleted of red blood cells before cryopreservation to ensure high rates of stem cell recovery.
There are two main types of cord blood banks: public and private. Public cord blood banks are usually nonprofit companies that store your donated cord blood for free, to be used for any sick child in another family or for research purposes, so accessing and using your own cord blood is not guaranteed. Private cord blood banks are companies that require a registration fee (plus annual storage fees) for your cord blood, but it is saved specifically for your own family, so you’ll have ready access to it.
Potential long-term risks include complications of the pretransplant chemotherapy and radiation therapy, such as infertility (the inability to produce children); cataracts (clouding of the lens of the eye, which causes loss of vision); secondary (new) cancers; and damage to the liver, kidneys, lungs, and/or heart.
The American Congress of Obstetricians and Gynecologists and the American Academy of Pediatrics don’t recommend routine cord blood storage. The groups say private banks should only be used when there’s a sibling with a medical condition who could benefit from the stem cells. Families are encouraged to donate stem cells to a public bank to help others.
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.
We are genetically closest to our siblings. That’s because we inherit half of our DNA from our mother and half from our father, so the genes we inherit are based on a chance combination of our parents’. Our siblings are the only other people inheriting the same DNA.
While banking cord blood is a new experience for many parents, it is a simple one. After all, most mothers are worried about how the delivery will go and don’t want to also be worried about the details of collecting, processing and cryo-preserving their babies’s cord blood. Thankfully, the healthcare provider and the cord blood bank do most of the work. Here are the steps found in cord blood banking:
Americord® is committed to pioneering the development of new cord blood, cord tissue, and placenta tissue banking technologies. Under the leadership of Executive Medical Director, Dr. Robert Dracker, Americord® developed Cord Blood 2.0™. This revolutionary extraction process harvests up to twice as many stem cells compared to a traditional cord blood collection.
Cord blood banks may be public or commercial. Public cord blood banks accept donations of cord blood and may provide the donated stem cells to another matched individual in their network. In contrast, commercial cord blood banks will store the cord blood for the family, in case it is needed later for the child or another family member.
Lead image of baby’s umbilical cord from Wikimedia Commons. Possible human blood stem cell image by Rajeev Gupta and George Chennell. Remaining images of blood sample bags and red blood cells from Wellcome Images.
With public cord blood banks, there’s a greater chance that your cord blood will be put to use because it could be given to any child or adult in need, says William T. Shearer, M.D., Ph.D., professor of Pediatrics and Immunology at Baylor College of Medicine in Houston. Cord blood is donated and is put on a national registry, to be made available for any transplant patient. So if your child should need the cord blood later in life, there’s no guarantee you would be able to get it back.
Banked cord blood is most abundant in white blood cells and stem cells. While a lot of attention is paid to the stem cells, there are approximately 10 times more total nucleated cells (TNCs) than stem cells in any cord blood collection. TNCs are basically white blood cells, or leukocytes; they are the cells of the immune system that protect the body. Despite stem cells comprising one-tenth of most collections, cord blood is still considered a rich source of hematopoietic (he-mah-toe-po-ee-tic) stem cells (HSCs). HSCs are often designated by the marker CD34+. Hematopoietic stem cells can become two categories of cells: myeloid and lymphoid cells. Myeloid cells go on to form your red blood cells, platelets, and other cells of the blood. Lymphoid cells go on to become the B cells and T cells and are the basis for the immune system. Cord blood also contains mesenchymal (meh-sen-ki-mal) stem cells (MSCs), but they are much more abundant in cord tissue, which we will discuss in a minute.
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). Refer a friend now: http://bit.ly/2JAGrcu
The Cord Blood Registry (CBR) is unique, because it is currently the world’s largest cord blood bank, with over a half-million cord blood and cord tissue units stored to date. This is substantially more than its nearest competitor, ViaCord, which has 350,000 units stored. It was recently acquired by pharmaceutical giant, AMAG Pharmaceuticals, for $700 million in June 2015.
The cord blood of your baby is an abundant source of stem cells that are genetically related to your baby and your family. Stem cells are dominant cells in the way they contribute to the development of all tissues, organs, and systems in the body.