Since the first cord blood transplant back in 1988, the application of umbilical cord blood in the field of medicine has grown. Today, cord blood is an approved therapy for over 80 conditions, and its potential is being explored in hundreds of clinical trials.
This article explores how cord blood stem cells are used to treat genetic disorders, provides real-life examples of successful treatments, and delves into future possibilities in genetic medicine.
This is a collaborative post with Cells4Life.
Understanding Cord Blood Banking and Newborn Stem Cells
Banking cord blood involves the collection and storage of blood from the umbilical cord and placenta immediately after childbirth. This blood is rich in stem cells, which have the unique ability to develop into different types of cells. These stem cells are valuable because they can be used in various medical treatments, particularly in the context of genetic disorders.
The process of collecting cord blood is simple and non-invasive. After the umbilical cord is clamped and cut, a healthcare professional collects the remaining blood using a sterile needle and bag. The collected blood is then sent to a facility where it is processed, tested, and cryogenically frozen for long-term biological storage. This ensures that the stem cells remain viable and ready for use whenever needed.
How Cord Blood Treats Genetic Disorders
Stem cells derived from cord blood are particularly valuable in treating genetic disorders because they offer a source of healthy cells that can replace or repair damaged cells in the body. Genetic disorders are often caused by mutations in genes, leading to abnormal or dysfunctional proteins. Stem cell therapy aims to introduce healthy stem cells into the patient’s body to restore normal cellular function.
Real-Life Examples of Successful Treatments
- Sickle Cell Disease: Sickle cell anaemia is a genetic blood disorder. Normally, red blood cells are round, disc-shaped with a dimple on both sides, facilitating the transportation of oxygen and nutrients throughout the body. In sickle cell anaemia, however, red blood cells have a sickle (crescent) shape, impairing their function and causing a variety of symptoms. The only cure for sickle cell anaemia is a stem cell transplant. Due to its genetic nature, it has become increasingly common for parents to store the cord blood of subsequent children if one child is diagnosed with the condition.
- Thalassemia: Thalassemia is another genetic disorder that has benefited from cord blood stem cell therapy is thalassemia, a condition affecting the production of haemoglobin. Haemoglobin is a protein in red blood cells responsible for carrying oxygen and carbon dioxide throughout the body. Haemoglobin is also what makes blood red. Like sickle cell anaemia, the only cure for thalassemia is a stem cell transplant. Due to its genetic nature, it has become increasingly common for parents to store the cord blood of subsequent children if one child is diagnosed with the condition.
Why are parents choosing to store the cord blood of siblings? Sibling cord blood has a 75% chance of being a partial match and a 25% chance of being a perfect match.
Future Possibilities in Genetic Medicine
The field of genetic medicine is rapidly evolving, driven by advancements in stem cell research and genetic therapies. The potential of cord blood stem cells extends beyond current treatments to include future possibilities such as gene editing and personalised medicine. Researchers are exploring ways to manipulate stem cells to correct genetic mutations directly, offering hope for more targeted and effective treatments. Advances in genetic testing and sequencing are paving the way for personalised medicine approaches. Cord blood banking allows families to preserve a unique genetic resource that could potentially be used one day for personalised therapies tailored to an individual’s genetic profile.
Newborn stem cell banking and the use of cord blood stem cells offer a ray of hope in the treatment of genetic disorders. From current successes in treating conditions like sickle cell disease and thalassemia to future possibilities in gene editing and personalised medicine, the potential of cord blood stem cells continues to expand. As research advances and technology evolves, cord blood banking remains a pivotal investment in healthcare, providing families with a valuable resource for both current medical needs and future therapeutic advancements.