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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.
^ Li, T; Xia, M; Gao, Y; Chen, Y; Xu, Y (2015). “Human umbilical cord mesenchymal stem cells: an overview of their potential in cell-based therapy”. Expert Opinion on Biological Therapy. 15 (9): 1293–306. doi:10.1517/14712598.2015.1051528. PMID 26067213.
It’s hard to ignore the ads for cord blood banks, offering a lifetime of protection for your children. If you’re an expectant mom, there’s information coming at you constantly from your doctor’s office, magazines, online, and perhaps even your yoga class.
The main reason for this requirement is to give the cord blood bank enough time to complete the enrollment process. For the safety of any person who might receive the cord blood donation, the mother must pass a health history screening. And for ethical reasons, the mother must give informed consent.
^ Roura, S; Pujal, JM; Gálvez-Montón, C; Bayes-Genis, A (2 July 2015). “The role and potential of umbilical cord blood in an era of new therapies: a review”. Stem cell research & therapy. 6: 123. doi:10.1186/s13287-015-0113-2. PMC 4489204 . PMID 26133757.
After all is said and done, the cost to collect, test, process and store a donated cord blood collection at a public bank is estimated to be $1,200 to $1,500 dollars for each unit banked. That does not include the expense for the regulatory and quality systems needed to maintain licensure, or the cost of collecting units that are discarded because they don’t meet standards.
CBR collection kits have been designed to shield the samples from extreme temperatures (shielding for more than 1 hour at extreme hot and cold). Samples remain at room temperature and are shipped directly to the CBR lab for processing.
Remaining in the umbilical cord and placenta is approx. 40–120 milliliters of cord blood. The healthcare provider will extract the cord blood from the umbilical cord at no risk or harm to the baby or mother.
The Medical Letter On Drugs and Therapeutics also recently addressed aspects of public and private cord blood banks, asking the question: “Does Private Banking Make Sense?” After citing various statistics on the actual uses of privately stored cord blood, they concluded that: “At the present time, private storage of umbilical cord blood is unlikely to be worthwhile. Parents should be encouraged to contribute, when they can, to public cord blood banks instead.” [Access The Medical Letter at www.medicalletter.org].
Brigham and Women’s Hospital and Dana-Farber Cancer Institute jointly oversee the Cord Blood Donation Program to provide hope to all patients in need of a life-saving stem cell transplant. For more information about the stem cell transplant program please visit The Stem Cell/Bone Marrow Transplant Program at Dana-Farber/Brigham and Women’s Cancer Center (DF/BWCC) web site.
Like most transplants, the stem cells must be a genetic match with the patients to be accepted by the body’s immune system. It goes without saying that a patient’s own cord blood will be a 100% match. The second highest chance of a genetic match comes from siblings.
According to Cord Blood Registry, cord blood is defined as “the blood that remains in your baby’s umbilical cord after the cord has been cut, is a rich source of unique stem cells that can be used in medical treatments.” Cord blood has been shown to help treat over 80 diseases, such as leukemia, other cancers, and blood disorders. This cord blood, which can be safely removed from your newborn’s already-cut umbilical cord, can be privately stored for the purpose of possible use in the future for your child or family member. (It can also be donated to a public bank, but this is not widely available)
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.
Many expectant parents would love the opportunity to bank their baby’s cord blood and cord tissue, but with an initial fee of $1600–$1800 for a quality service and an annual fee of $150–$175, the cost of banking cord blood may seem out of reach. At Cryo-Cell, we are committed to offering a high standard of service at the best price possible, with absolutely no unexpected fees or hidden surcharges. To help keep cord blood banking in everyone’s budget, we offer in-house financing options that begin for as little as $199 down and $128 per month. In addition, we regularly offer specials and have a number of discounts for current clients, referrals, multiple birthes and medical professionals. We will even meet the price of any reputable competitor through our best-price guarantee.
If someone doesn’t have cord blood stored, they will have to rely on stem cells from another source. For that, we can go back to the history of cord blood, which really begins with bone marrow. Bone marrow contains similar although less effective and possibly tainted versions of the same stem cells abundant in cord blood. Scientists performed the first bone marrow stem cell transplant in 1956 between identical twins. It resulted in the complete remission of the one twin’s leukemia.
A cord blood bank may be private (i.e. the blood is stored for and the costs paid by donor families) or public (i.e. stored and made available for use by unrelated donors). While public cord blood banking is widely supported, private cord banking is controversial in both the medical and parenting community. Although umbilical cord blood is well-recognized to be useful for treating hematopoietic and genetic disorders, some controversy surrounds the collection and storage of umbilical cord blood by private banks for the baby’s use. Only a small percentage of babies (estimated at between 1 in 1,000 to 1 in 200,000) ever use the umbilical cord blood that is stored. The American Academy of Pediatrics 2007 Policy Statement on Cord Blood Banking stated: “Physicians should be aware of the unsubstantiated claims of private cord blood banks made to future parents that promise to insure infants or family members against serious illnesses in the future by use of the stem cells contained in cord blood.” and “private storage of cord blood as ‘biological insurance’ is unwise” unless there is a family member with a current or potential need to undergo a stem cell transplantation. The American Academy of Pediatrics also notes that the odds of using a person’s own cord blood is 1 in 200,000 while the Institute of Medicine says that only 14 such procedures have ever been performed.
With allogeneic transplants, GVHD sometimes develops when white blood cells from the donor (the graft) identify cells in the patient’s body (the host) as foreign and attack them. The most commonly damaged organs are the skin, liver, and intestines. This complication can develop within a few weeks of the transplant (acute GVHD) or much later (chronic GVHD). To prevent this complication, the patient may receive medications that suppress the immune system. Additionally, the donated stem cells can be treated to remove the white blood cells that cause GVHD in a process called “T-cell depletion.” If GVHD develops, it can be very serious and is treated with steroids or other immunosuppressive agents. GVHD can be difficult to treat, but some studies suggest that patients with leukemia who develop GVHD are less likely to have the cancer come back. Clinical trials are being conducted to find ways to prevent and treat GVHD.
Umbilical cord blood stem cells have the unique ability to help rebuild a healthy immune system damaged by disease. Cord blood has been used in transplant medicine for nearly 30 years and can be used in the treatment of nearly 80 different diseases today.1 Over the last few years, cord blood use has expanded beyond transplant medicine into clinical research trials for conditions like autism and brain injuries.
You’ve just visited the doctor and the good news is that you’re going to have a baby and everything looks good. Thirty years ago, your doctor may have given you a baby book and information about products that sponsors want you to buy for your new addition. Today, along with pretty much the same materials, you’ll be asked to consider saving the blood of your newborn that’s left over in the umbilical cord and placenta after the delivery. Another big decision, and possibly a costly one.
Cord blood is used the same way that hematopoietic stem cell transplantation is used to reconstitute bone marrow following radiation treatment for various blood cancers, and for various forms of anemia. Its efficacy is similar as well.
The proteins stem from three HLA genes, and you inherit one HLA from each parent, or half your HLA markers from your mother and half from your father. This gives siblings a 25 percent chance of being a perfect match, a 50 percent chance of being a partial match and another one-in-four chance of not being a match at all. Unfortunately, about seven out 10 patients who need a transplant don’t have a suitable donor in their family. They can either rely on their own stem cells, isolated before treatment or previously preserved, or try to find a match through a public donor.
Your child may never need it. Stem cell-rich cord blood can be used to treat a range of diseases, but Frances Verter, Ph.D., founder and director of Parent’s Guide to Cord Blood Foundation, estimates that there’s only a 1 in 217 chance that your child will ever need a stem cell transplant with cord blood (or bone marrow). This is particularly true if the child doesn’t have a family history of diseases such as leukemia, lymphoma, or sickle cell anemia. Although the American Academy of Pediatrics (AAP) states cord blood has been used to treat certain diseases successfully, there isn’t strong evidence to support cord blood banking. If a family does choose to bank cord blood, the AAP recommends public cord blood banking (instead of private) to cut down on expenditures.
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.
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).
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.
A limitation of cord blood is that it contains fewer HSCs than a bone marrow donation does, meaning adult patients often require two volumes of cord blood for treatments. Researchers are studying ways to expand the number of HSCs from cord blood in labs so that a single cord blood donation could supply enough cells for one or more HSC transplants.
Cord blood in public banks is available to unrelated patients who need haematopoietic stem cell transplants. Some banks, such as the NHS bank in the UK, also collect and store umbilical cord blood from children born into families affected by or at risk of a disease for which haematopoietic stem cell transplants may be necessary – either for the child, a sibling or a family member. It is also possible to pay to store cord blood in a private bank for use by your own family only.
In an allogenic transplant, another person’s stem cells are used to treat a child’s disease. This kind of transplant is more likely to be done than an autologous transplant. In an allogenic transplant, the donor can be a relative or be unrelated to the child. For an allogenic transplant to work, there has to be a good match between donor and recipient. A donor is a good match when certain things about his or her cells and the recipient’s cells are alike. If the match is not good, the recipient’s immune system may reject the donated cells. If the cells are rejected, the transplant does not work.
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.
The immune system has a way to identify foreign cells; it’s what allows the body to defend itself. So although transplants were proving successful after the first in 1956, they were limited to twins because their shared genetic makeup made them 100 percent compatible. This took a turn in 1958, when scientists discovered a protein present on the surface of almost all cells that lets the body know if the cell is one of its own cells or a foreign cell. In 1973, we finally learned enough about these compatibility markers (called human leukocyte antigens or HLAs) to perform the first unrelated bone marrow transplant.
Stem cells also may be retrieved from umbilical cord blood. For this to occur, the mother must contact a cord blood bank before the baby’s birth. The cord blood bank may request that she complete a questionnaire and give a small blood sample.
However, cord blood transplants also have limitations. Treatment of adults with cord blood typically requires two units of cord blood to treat one adult. Clinical trials using “double cord blood transplantation” for adults have demonstrated outcomes similar to use of other sources of HSCs, such as bone marrow or mobilized peripheral blood. Current studies are being done to expand a single cord blood unit for use in adults. Cord blood can also only be used to treat blood diseases. No therapies for non-blood-related diseases have yet been developed using HSCs from either cord blood or adult bone marrow.
Unlike traditional BMT or PBSCT, cells from both the donor and the patient may exist in the patient’s body for some time after a mini-transplant. Once the cells from the donor begin to engraft, they may cause the GVT effect and work to destroy the cancer cells that were not eliminated by the anticancer drugs and/or radiation. To boost the GVT effect, the patient may be given an injection of the donor’s white blood cells. This procedure is called a “donor lymphocyte infusion.”
Cord blood has an abundance of stem cells and immune system cells, and the medical uses of these cells has been expanding at a rapid pace. As these cells help the body re-generate tissues and systems, cord blood is often referred to as a regenerative medicine.
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.
In March 2004, the European Union Group on Ethics (EGE) has issued Opinion No.19 titled Ethical Aspects of Umbilical Cord Blood Banking. The EGE concluded that “[t]he 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. Thus they promise more than they can deliver. The activities of such banks raise serious ethical criticisms.”
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.
The use of cord blood is determined by the treating physician and is influenced by many factors, including the patient’s medical condition, the characteristics of the sample, and whether the cord blood should come from the patient or an appropriately matched donor. Cord blood has established uses in transplant medicine; however, its use in regenerative medicine is still being researched. There is no guarantee that treatments being studied in the laboratory, clinical trials, or other experimental treatments will be available in the future.