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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.
A large challenge facing many areas of medical research and treatments is correcting misinformation. Some companies advertise services to parents suggesting they should pay to freeze their child’s cord blood in a blood bank in case it’s needed later in life. Studies show it is highly unlikely that the cord blood will ever be used for their child. However, clinicians strongly support donating cord blood to public blood banks. This greatly helps increase the supply of cord blood to people who need it.
Both public and family cord blood banks must register with the US Food and Drug Administration (FDA), and since Oct. 2011 public banks also need to apply for an FDA license. All cord blood banks are required by federal law to test the blood of the mother for infectious diseases. At public banks the screening is usually more extensive, similar to the tests performed when you donate blood. The typical expense to a public bank is $150 per unit.
^ 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.
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 “tandem transplant” is a type of autologous transplant. This method is being studied in clinical trials for the treatment of several types of cancer, including multiple myeloma and germ cell cancer. During a tandem transplant, a patient receives two sequential courses of high-dose chemotherapy with stem cell transplant. Typically, the two courses are given several weeks to several months apart. Researchers hope that this method can prevent the cancer from recurring (coming back) at a later time.
First isolated in 1998, there is a lot of controversy around acquiring embryonic stem cells. Thankfully, we can also acquire the stem cells that form just a little bit later down the road, like in the umbillical cord tissue. These stem cells, known as adult stem cells, stay with us for life. (Later, we will learn why not all adult stem cells are equal.) Adult stem cells are more limited in the types of cells they can become, something known as being tissue-specific, but share many of the same qualities. Hematopoietic stem cells (Greek “to make blood” and pronounced he-mah-toe-po-ee-tic) found in the umbilical cord’s blood, for instance, can become any of the different types of blood cells found in the body and are the foundation of our immune system. Another example is mesenchymal (meh-sen-ki-mal) stem cells, which can be found in the umbilical cord tissue and can become a host of cells including those found in your nervous system, sensory organs, circulatory tissues, skin, bone, cartilage, and more.
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).
At present, the odds of undergoing any stem cell transplant by age 70 stands at one in 217, but with the continued advancement of cord blood and related stem and immune cell research, the likelihood of utilizing the preserved cord blood for disease treatment will continue to grow. Read more about cord blood as a regenerative medicine here.
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 banking is a confusing topic. Many parents get bombarded with information when searching to see if cord blood banking is right for them. There is information that private cord blood banking companies, like Viacord and Cord Blood Registry, will not tell you, until now.
2 Cordblood.com, (2014). Cord Blood Stem Cell Banking | Cord Blood Registry | CBR. [online] Available at: http://www.cordblood.com/cord-blood-banking-cost/cord-blood-stem-cells [Accessed 22 March. 2017].
^ 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.
The stem cells used in PBSCT come from the bloodstream. A process called apheresis or leukapheresis is used to obtain PBSCs for transplantation. For 4 or 5 days before apheresis, the donor may be given a medication to increase the number of stem cells released into the bloodstream. In apheresis, blood is removed through a large vein in the arm or a central venous catheter (a flexible tube that is placed in a large vein in the neck, chest, or groin area). The blood goes through a machine that removes the stem cells. The blood is then returned to the donor and the collected cells are stored. Apheresis typically takes 4 to 6 hours. The stem cells are then frozen until they are given to the recipient.
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.
Pro: It gives you that peace of mind that if anything did happen to your child, the doctors would have access to their blood. This could potentially be a great benefit, and you would have no idea what would have happened if it weren’t for this blood.
Stem cells from cord blood can be given to more people than those from bone marrow. More matches are possible when a cord blood transplant is used than when a bone marrow transplant is used. In addition, the stem cells in cord blood are less likely to cause rejection than those in bone marrow.
“This reanalysis supports several previously expressed opinions that autologous [to use one’s OWN cells] banking of cord blood privately as a biological insurance for the treatment of life-threatening diseases in children and young adults is not clinically justified because the chances of ever using it are remote. The absence of published peer-reviewed evidence raises the serious ethical concern of a failure to inform prospective parents about the lack of future benefit for autologous cord banking … Attempts to justify this [commercial cord blood banking] are based on the success of unrelated public domain cord banking and allogeneic [using someone ELSE’S cells] cord blood transplantation, and not on the use of autologous [the person’s OWN cells] cord transplantation, the efficacy of which remains unproven”.
There are no health risks related to cord blood collection. Cord blood is retrieved from the umbilical cord after it has been cut, thus preventing any pain, discomfort, or harm. This process is completely safe.
To learn more about umbilical cord blood and banking please watch Banking on cord blood, Cord blood – banking and uses, Cord blood transplantation – how stem cells can assist in the treatment of cancer in our video library.
After a baby is born, cord blood is left in the umbilical cord and placenta. It is relatively easy to collect, with no risk to the mother or baby. It contains haematopoietic (blood) stem cells: rare cells normally found in the bone marrow.
Your body has many different types of cells (more than 200 to be more exact) each geared towards specific functions. You have skin cells and blood cells, and you have bone cells and brain cells. All your organs comprise specific cells, too, from kidney cells to heart cells.