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This means that family members, and possibly even strangers, may be able to use the cord blood stem cells for certain treatments. Siblings from the same biological parents have the highest chance of full or partial genetic match, followed by the biological parents who may be a partial match.
Thornley I., Eapen M., Sung L., Lee S., Davies S., & Joffe S. (2009). Private cord blood banking: Experiences and views of pediatric hematopoietic cell transplantation physicians. Pediatrics, 123(3), 1011–1017 [PMC free article] [PubMed]
Anyway, the excitement over the embryonic cells comes from their remarkable ability, as biological blank slates, to become virtually any of the body’s cell types. Many observers believe the president’s move will accelerate the hunt for cures for some of our most vexing diseases. However, the benefits are largely hypothetical, given the infancy of the field, and are offset by some real obstacles: The risks of embryonic stem cells, as well as cells programmed to become like them, including the possibility they will actually cause cancers in people who receive them. Nonetheless, here’s a look at 10 health problems that stem cells might someday cure or at least help treat.
It depends on who you ask. Although commercial cord blood banks often bill their services as “biological insurance” against future diseases, the blood doesn’t often get used. One study says the chance that a child will use their cord blood over their lifetime is between 1 in 400 and 1 in 200,000.
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.
For much of pregnancy, the umbilical cord is the lifeline of a fetus, tethering it to the placenta. Snaking through the nearly 2-feet-long cord, there’s a vein ferrying nutrients and oxygen from mom’s blood (via the placenta), plus two arteries carrying oxygen- and nutrient-depleted blood from the fetus back to mom. Because mother’s blood and fetal blood don’t actually mix much, the blood in the placenta and umbilical cord at birth belongs mainly to the fetus.
Families should seriously pursue public banking, donation for research, or private banking instead of discarding their baby’s umbilical cord blood. We aim to be nonpartisan in our dissemination of information, but we believe that discarding your baby’s cord blood is a waste of a once-in-a-lifetime valuable resource.
Cord blood transplantation has been shown to be curative in patients with a variety of serious diseases. Physicians should be familiar with the rationale for cord blood banking and with the types of cord blood–banking programs available. Physicians consulted by prospective parents about cord blood banking can provide the following information:
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.
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.
The next step at either a public or family bank is to process the cord blood to separate the blood component holding stem cells. The final product has a volume of 25 milliliters and includes a cryoprotectant which prevents the cells from bursting when frozen. Typical cost, $250 to $300 per unit.
Basing your decision solely on the price of service may actually cost you in the long run. This is why we look at the quality of cord blood services provided and the costs of maintaining state of the art facilities.
Another important consideration for autologous use is that, currently, it is unknown how long umbilical cord blood will maintain its usefulness while frozen. Research indicates that cord blood stem cells can be maintained up to 15 years, but it is unknown if the cells would be preserved over the entire lifetime of a person (Ballen et al., 2001; Hess, 1997). Furthermore, financial costs are associated with maintaining the cord blood over time. Kaimal, Smith, Laros, Caughey, and Cheng (2009) studied the cost-effectiveness of private umbilical cord blood banking for autologous use and concluded that it was not cost-effective in most instances because the chances that it would be used are extremely small.
2. Diabetes. For the many Americans with type 1 diabetes, whose insulin-making pancreatic cells have been killed off by their immune system, stem cells may be the answer. Last year, scientists reported that they had coaxed human embryonic stem cells into becoming insulin-producing, blood sugar-regulating cells in diabetic mice. The aim: to someday do the same for people.
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).
Entz-Werle N, Suciu S, van der Werff Ten Bosch J, et al. Results of 58872 and 58921 trials in acute myeloblastic leukemia and relative value of chemotherapy vs allogeneic bone marrow transplantation in first complete remission: the EORTC Children Leukemia Group report. Leukemia.2005;19 :2072– 2081
After the baby is delivered, according to the procedures of cord blood banking, the umbilical cord is initially clamped and then cut out in the natural and usual manner. Here, the procedure for clamping and cutting remains the same for vaginal deliveries and c-section deliveries. However, while convening the procedure, make sure to get it done under the supervision of a competent and efficient professional.
Tracey Dones of Hicksville, N.Y., paid to bank her son Anthony’s cord blood. But four months after he was born, Anthony was diagnosed with osteopetrosis, a rare disease that causes the body to produce excess bone, leads to blindness, and can be fatal if left untreated.
Prior to transplanting any type of tissue, a “matching” process must occur to increase the success of the transplant and decrease the likelihood that the transplant will be rejected. The rejection of a transplanted tissue is called “graft versus host disease.” The matching process dates back to the late 1950s when the human leukocyte antigens were discovered. There are two classes of human leukocyte antigens. The first class is located on the surface of almost all of the cells with a nucleus within the body of the cell. The second class of human leukocyte antigens is located on the surface of immune cells. Each of the two classes of antigens has three subgroups, creating six antigens for which matching can occur. Thus, a “6 of 6” matching of the antigens represents a “perfect” match. Beyond the matching process, other factors contribute to the success or failure of a stem cell transplant. These factors include, but are not limited to, the age of both the donor and the patient, the type of disease being treated, and the number of stem cells being transplanted (Moise, 2005).
Marketing materials by Viacord and Cord Blood Registry, the two largest companies, do not mention that cord blood stem cells cannot be used by the child for genetic diseases, although the fine print does state that cord blood may not be effective for all of the listed conditions.
Cord tissue contains a special type of stem cell that has the potential to treat injuries and diseases affecting cartilage, muscle, and nerve cells.19 Since 2007 there have been about 150 clinical trials that have used cord tissue stem cells in human patients.
Your baby’s cord blood could be a valuable resource for another family. From foundations to non-profit blood banks and medical facilities, there are numerous locations that will collect, process, and use the stem cells from your baby’s cord blood to treat other people.
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
Current trials show promise for cord blood in the treatment of strokes, heart disease, diabetes and more. Umbilical cord–derived stem cells, meanwhile, are undergoing clinical trials for the treatment of multiple sclerosis, sports-related injuries and various neurodegenerative diseases including ALS (known also as Lou Gehrig’s disease) and Alzheimer’s.
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.
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.
Finally, there is a significant lack of regulation for umbilical cord blood banking. The lack of quality control, in turn, affects the quality of the specimen available for transplant. Some cord blood banks have submitted to voluntary accreditation, but the process of accreditation varies from bank to bank, whether public or private (McGuckin & Forraz, 2008; Moise, 2005).
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Lamaze International has created a continuing education home study based on this article. Visit the Lamaze Web site (www.lamaze.org) for detailed instructions regarding completion and submission of this home study module for Lamaze contact hours.
Public umbilical cord blood banks accept altruistic donations of cord blood and do not charge donation fees. Donated units are also processed, antigen typed, and frozen, ready for use. Unlike private banks, public banks do not reserve the units for the family that donated them; rather, units are available to the general public. In fact, a family that donates the blood would be no more likely to be a recipient of the blood than anyone else in the general population. Public cord blood banks function much like venous blood banks. The blood is released on an “as-needed” basis, and a processing fee may be charged to recoup some of the cost of storage (Moise, 2005; Percer, 2009).
These are diseases for which transplants of blood-forming stem cells (Hematopoietic Stem Cell Transplants, HSCT) are a standard treatment. For some diseases they are the only therapy, and in other diseases they are only employed when front-line therapies have failed or the disease is very aggressive. The lists below include ALL therapies that use blood-forming stem cells, without distinction as to whether the stem cells were extracted from bone marrow, peripheral blood, or cord blood.
Lifebank USA is another private bank, located in Cedar Knolls, New Jersey, that’s accredited by the AABB. What sets this bank apart from the others: it’s one of the few banks that store umbilical cord blood and placenta blood (this is done for free). Stem cells from placenta tissue can turn into skeletal tissue types such as bone, cartilage, fat tissue, and connective tissue, whereas cells from cord blood turn into different types of blood cells.
We believe that every family should have the opportunity to preserve their baby’s newborn stem cells. That’s why CBR offers transparent costs of cord blood banking, and various payment options to fit this important step into almost every family budget.
One of the first things I learned is that the couples in my childbirth class were not unique. In fact, research indicates that most pregnant women are underinformed about the issue of cord blood banking (Fox et al., 2007). While reviewing the literature on cord blood banking, I also found that the information available for nurses and childbirth educators often comes from private cord blood banks or their employees (Cord Blood Registry, 2009; Wolf, 1998, 1999), thus introducing the chance of bias.
FACT accredited: Cord blood companies that are FACT accredited have been evaluated by the Foundation for the Accreditation of Cellular Therapy, and they’re found to have met the foundation’s standards of operation.
Description: MAZE Cord Blood Laboratories provides a low cost cord blood banking option but maintains a high quality and level of service. They keep costs down by limiting their marketing spend and relying on referrals.
The evolution from pluripotent stem cells down to blood stem cells is currently poorly understood. The latest indication is that, under the right conditions, stem cells in cord blood can be teased to grow into other types of tissue besides blood. This would open up an entirely new realm of potential treatment through the use of stem cells.
Direct-donation umbilical cord blood banks function as an amalgamation of public and private banks. Direct-donation banks collect cord blood without charging fees. In addition, they accept autogenous donations and reserve them only for the family, especially for a family whose infant has a sibling with a disorder that may be treated with umbilical cord blood stem cells (Moise, 2005).
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.
For transplants, the primary advantage of cord blood stem cells over stem cells from adults is that they cause much less graft versus host disease (GvHD). In order to safely transplant adult stem cells, the patient and donor must match over at least 10 of 12 tissue types called Human Leukocyte Antigens (HLA), or 83% HLA match. By comparison, medical outcomes are just as good with cord blood that has a 4 out of 6 or 67% HLA match.