Set2Survive Survival Blog Learn everything about how to survive in the wild nature.
Bunin N, Aplenc R, Iannone R, et al. Unrelated donor bone marrow transplantation for children with severe aplastic anemia: minimal GVHD and durable engraftment with partial T cell depletion. Bone Marrow Transplant.2005;35 :369– 373
Extracting stem cells from bone marrow requires surgery under anesthesia; extracting them from the blood requires taking a drug to stimulate their production. And in order to work, these stem cell donations need to come from a person who carries a similar pattern of proteins on the outsides of his or her cells, a molecular calling card known as HLA type. Stem cells found in cord blood don’t need to be as closely matched to work. Because these cells are so flexible, there’s more wiggle room between donor and recipient. That’s particularly good news for people of certain ethnic minorities who often have trouble finding matched stem cell transplant donors.
The blood that remains in the umbilical cord and the placenta after birth is called “cord blood”. Umbilical cord blood, umbilical cord tissue, and the placenta are all very rich sources of newborn stem cells. The stem cells in the after birth are not embryonic. Most of the stem cells in cord blood are blood-forming or hematopoietic stem cells. Most of the stem cells in cord tissue and the placenta are mesenchymal stem cells.
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.
An additional cost that is borne only by public banks is the “HLA typing” that is used to match donors and patients for transplants. This is an expensive test, running about $75 to $125 per unit. Family banks always defer this test until it is known whether a family member might use the cord blood for therapy.
10. Organ failure. What better way to ease the shortage of organs for transplantation than to grow new ones? That’s what some scientists think, and with stem cells, that vision may become more than a pipe dream. Last year, researchers grew a beating rat heart in the lab with the help of heart cells from newborn rats, preliminary proof of the concept.
When you’re pregnant, especially for the first time, you have to make a lot of decisions. Will coffee remain a part of your life? Where are you going to give birth? What are you going to name the baby? What values will you teach him? Do you really need a baby spa bathtub?
Stay up on the latest stem cell developments with our stem cell news blog. Read about the newest trials that are underway, how current trials are faring and new ways that cord blood and tissue stem cells are being used in regenerative therapies. For doctors and researches, the Stem Cell Insider provides a more detailed look at the latest stem cell news and showcases the latest advancements in our products to help ensure stem cells preserved with us are viable and pure.
Although cord blood is currently considered discarded human material, it should only be collected for banking with an institutional review board–approved protocol and with signed informed consent from a parent.42,43 Pertinent donor information communicated to the cord blood bank should be kept confidential by the cord blood bank and used only to report important medical information obtained during the cord blood collection, processing, and screening process that is relevant to the safety of the donor and family. If cord blood was collected from a newborn who subsequently developed a genetic, immunologic, or malignant neoplastic disorder, parents should notify the cord blood bank so that the unit is not used for transplantation. All cord blood units banked for potential use should be tested for infectious diseases, similar to those tested in a blood bank, and for hereditary hematologic diseases. The informed consent must contain information pertaining to what tests are to be performed on the cord blood and how the parents will be informed if test results are abnormal. Pediatricians should be aware that legal cases relating to the duty of a physician to warn parents about the risks of inheriting a genetic disease are new and untested. Pediatricians should remain vigilant, because future cases may define who has a legal duty to notify parents about genetic abnormalities identified during cord blood testing. Informed consent should be obtained before the onset of active labor and before cord blood collection.
ViaCord’s Sibling Connection Program, a dedicated transplant program for siblings, was designed to help families in need of a stem cell transplant. This program provides ViaCord’s cord blood banking services at no cost to expecting parents. A family with a child with an established diagnosis of a disease that is currently treatable with sibling cord blood may be eligible.
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.
The FDA regulates cord blood bank operations with strict guidelines. However, additional licenses maybe required in some states. Laboratories should also be AABB accredited. The AABB promotes the highest standards of care for both patients and donors in all aspects of blood banking, transfusion medicine, relationship testing, hematopoietic, cord blood and other cellular therapies.
Another advantage of using umbilical cord blood stem cells is the decreased risk of the transmission of infectious disease. This particular advantage is partly because umbilical cord blood is almost never contaminated by Epstein-Barr virus or cytomegalovirus (Drew, 2005; Gonzalez-Ryan et al., 2000). Additionally, the processing of cord blood includes collecting data on the history of infection during the mother’s pregnancy. For example, if the pregnant woman has a history of group B streptococcus, active genital herpes, or prolonged rupture of membranes and chorioamnionitis, umbilical cord blood is not saved. Generally, samples of the mother’s blood are also drawn to test for infectious diseases, such as hepatitis, human immunodeficiency virus, and syphilis (Moise, 2005). Furthermore, after the cord blood units are collected, they are screened for disease, and any units that are deemed contaminated or infected are thrown away (Gunning, 2007).
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.
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:
3. Heart disease. It’s the leading cause of death in the United States, and stem cells may provide some relief. Research is underway to see if injecting the cells into the heart could help regenerate heart muscle damaged by, for example, a heart attack. Again, researchers have reported success in rodents.
Many private banking proponents think that by storing your baby’s cord blood stem cells, you are positioning your family with a form of biological insurance in the event that your child or a close family member has a treatable disease.
Cord blood therapies have gotten more successful, and they also hold the promise of future innovative medical procedures for conditions like cerebral palsy and autism. Currently, cord blood 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. It’s an even more valuable resource for ethnic minorities, who statistically have a harder time finding stem cell matches in the registry of adult bone marrow donors.
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.
Americord offers parents the ability to collect stem cells from the placenta and umbilical cord soon after the child’s birth. These stem cells, obtained from cord blood, cord tissue and placenta tissue, can be used to help treat genetic diseases and other threats to the baby’s life. Placenta tissue stem cells can also be used to benefit the mother.
Using their banked cord blood stem cells, ViaCord families participate in ongoing IND approved research including autism, cerebral palsy, & brain injury. Over 150 families have participated in ongoing research.
The primary benefit to cord blood banking is that it provides a type of medical insurance. This insurance is not from a financial perspective, but rather takes the form of having the necessary medical building blocks available should they be needed in the event of certain illnesses and diseases. Those medical building blocks are the stem cells found in umbilical cord blood.
The cord blood cell recovery data reported by CBR and others is consistently higher than the published, available data of other processing methods including PrepaCyte® and Hespan, when combined with CPD.