Bone marrow was the primary source of stem cells (bone marrow transplantation involves transplanting stem cells derived from the bone marrow), whereas nowadays, the umbilical cord blood stem cells are more frequently applied for therapeutic uses. Other sources include the peripheral blood drawn from donors who underwent pharmacological mobilisation.

Each living multicellular organism, through the course of its life, systematically produces new cells which subsequently mature and differentiate into more specialised cells. Eventually, these cells perish after a specific period of time, as inscribed in their genetic code. Specific stem cells are cells which directly replace dead cells with new ones. All stem cells, even if transiently present in the body, can be subdivided into the four categories: totipotent, pluripotent, multipotent and unipotent. Multipotent type of cells include haematopoietic stem cells and human umbilical cord blood is a good source of them.

Umbilical cord blood - collection and storage

Cord blood is blood that stays in the umbilical cord and placenta after birth and after the child's abnegation. It is a valuable source of stem cells. Until recently it was treated as "waste" and recycled together with the placenta and umbilical cord. Currently, it is taken to isolate stem cells for storage and subsequent use in therapy.

Stem cells from umbilical cord blood, like those from the bone marrow, can be transplanted to rebuild the hematopoietic and immune systems, and show greater efficacy than stem cells obtained from adult donors. They can be used both for autologous transplants (then the donor is the recipient of the collected cells) and allogeneic (the recipient gets the cells from another person, e.g. family transplants).

Taking umbilical cord blood is a simple and non-invasive procedure.

Taking umbilical cord blood is a simple activity. They are performed after the umbilical cord is cut and the blood is taken from the part of the umbilical cord that is connected to the placenta, so the process is completely neutral for the child.

Usually, a trained midwife will take a pick using a collection kit that was delivered to the hospital by parents immediately before delivery. After collection, it is picked up from the hospital and transported to the laboratory by a person authorized by the bank.

Banking umbilical cord blood

Umbilical cord blood can be stored virtually indefinitely, without fear of losing valuable properties. In the PBKM laboratory stem cells from umbilical cord blood are stored until they need to be used. The predominance of stem cells from umbilical cord blood

Due to the advantages of umbilical cord blood cells over bone marrow cells, they are increasingly used in saving lives. Although stem cells from the bone marrow can be taken throughout life, the cells collected from umbilical cord blood are much more valuable, as illustrated in the table:


Umbilical Cord Blood

Bone Marrow

Duration and ease of blood collection

blood harvesting takes several minutes at childbirth, it is non-invasive and safe

collection can take a minimum of 25-30 minutes to be performed, the collection procedure involves a puncture of the wings of the ilium under general anaesthesia

Cross contamination risk

cord blood is retrieved from placenta and umbilical vessels – which minimises the risk of contamination

the donor is usually an adult who could be a symptomless carrier of viruses which could become active after the transplantation,  risk of contamination exists

Availability for transplantation

cord blood is available after deposition in a transplant bank and awaits the recipient

the marrow has to be harvested from a donor who, even if registered, is required to be present in order to confirm compatibility and collect the marrow, the donor must be in excellent health to allow the bone marrow harvest

Growth potential

greater proliferation capacity (cell multiplication, cellular rebirth) as opposed to bone marrow

cells reduced capacity to proliferate in comparison to cord blood cells

Compatibility between the donor and the recipient

EASY – 6 Human Transplantation Antigens (HLA) are tested out of which only 4 are required to be compatible between the blood and its recipient

EXTREMELY DIFFICULT – 10 Human Transplantation Antigens (HLA) undergo testing out of which 8 must be compatible between the bone marrow donor and the recipient

Prospective donors

cord blood can be retrieved only once throughout life – at birth

theoretically any adult meets the criteria for becoming a bone marrow donor, registration is simple and inexpensive, however finding a matched donor available on specific dates may prove complicated

Prospective recipients

the average cord blood unit is suitable for recipient weighing approximately 40 kg, blood units can be combined, with bone marrow or peripheral blood

bone marrow harvested from an adult will in general provide a sufficient supply of stem cells for a donor with 70-80 kg body weight

Regeneration of the cardiovascular system

cardiovascular system regeneration process following transplantation takes up to a month

cardiovascular system regeneration process following transplantation takes up 2 weeks

Umbilical cord

The umbilical cord contains special stem cells called mesenchymal cells. They have slightly different properties than umbilical cord blood cells - they are much more easily differentiated into other types of cells, e.g. nervous, bone, cartilage.

Umbilical cord cells are called Wharton jelly cells. It is a specific tissue that surrounds umbilical vessels. The umbilical cord can be easily obtained after delivery. The treatment is non-invasive and painless for both mother and baby. The doctor or midwife cuts the fragment (10-15 cm long) of the umbilical cord and puts it in a special container. In the laboratory, umbilical tissue tissue is examined and prepared and then frozen. It is also possible to isolate stem cells before freezing.

What are the advantages of storing umbilical cord?
  • MSC's are used in medical therapeutic experiments for the treatment of such conditions as cerebral palsy, amyotrophic lateral sclerosis or articular cartilage damage,
  • MSC's may be transplanted together with umbilical cord blood cells where there is a relatively small number of hematopoietic stem cells from umbilical cord blood,
  • MSC's may be used for the treatment of the entire family (tissue compatibility requirements are not as restrictive as in the case of blood).

See how many FamiCord clients have already benefited from stem cell therapy

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