Sickle cell anemia is a hereditary blood disorder that affects mostly African-American descents. Most probably, a stem cell therapy transplant using the patient’s own stem cells for the gene alteration or correcting method can help patients with sickle cell anemia.

A large number of people can expect effective treatment results using stem cells, as though the treatment involves risks as well.

However, recent treatment of a patient with sickle cell anemia in Edmonton, Canada with stem cell therapy raises hopes for other patients too.

According to the American Society of Hematology, this genetic disorder is more prevalent in African-American descendants, which affects as many as 70,000 to 100,000 individuals. Sickle cell anemia is known as sickle cell disease as well.
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The disease caused by a genetic mutation in the red blood cells changes the blood cells in an abnormal manner and turns them in crescent shapes like structures. The new formation leads the blood to clot, making them get stuck in the blood vessels. As a result, many organs and parts of the body cannot get an adequate volume of blood supply, making them get exhausted with different ailments, including organ deaths, heart attacks, and kidney ailments. stem cell therapy, stem cell transplant.

The procedure of bone marrow transplant works for sickle cell anemia. It requires bone marrow from a healthy donor to replace it with the diseased one so that the marrow can produce healthier mutation-free red blood cells with no more sickle-shaped crescents.

As said earlier, the transplant comes with a risk to life. Until now, bone marrow transplant has appeared to be very toxic for adult patients. The procedure is a setback for those, who cannot accept the toxicity of the transplant as chemotherapy kills one’s strength to stand the jerk and results in damage of the marrow prior to the transplant. However, a retrospective study back in 2014 carried out by the National Institute of Health, proved that a transplant in 30 patients with sickle cell anemia worked, and reinstated the ability to reverse the effects the disease in 26 patients.

Since the procedure involves some risks in the form of permanent infertility and mortality; many do not consider the bone marrow transplant. However, it is worth the risk if it raises some hope and put one’s life back on the track.
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This is how a recent case of bone marrow transplant with stem cells proved prospective for many, who are suffering from this deadly disease. The bone marrow transplant worked wonders on a Canadian resident Revée Agyepong, who was found to have sickle cell anemia ever since her toddlerhood. She received the bone marrow from her sibling Stephanie Amoah, and the transplant was successfully carried out by Dr. Andrew Daly, who runs his own stem cell health clinic in Alberta, Canada.

The successful transplant has helped Revée produce new red blood cells without any genetic mutations of sickle cell anemia.

Rather than bone marrow transplant, another successful treatment procedure is gene therapy using the CRISPR, a gene-editing technology. The gene correction technique diminishes the requirement of marrow swapping. This approach is now underway to treat sickle cell anemia. Way back in 2011, the John Hopkins Institute for Cell Engineering carried out a gene therapy procedure using the patient’s own stem cells.  The procedure helped the patients with the disease to alter the genes that caused sickle cell anemia. The researchers isolated the bone marrow stem cells and converted them into iPSC cells. With reprogrammed iPSCs, embryonic stem cells were produced. Later they replaced the defective ones to produce healthier bone marrow with the help of genetic engineering techniques.

However, the trail requires a review from the FDA so that it can treat sickle cell anemia. Now, the wait is for the green signal only to put an end to the debilitating conditions of the disease.

Pluripotent Stem Cells: Regenerative medicines are keystones to regrow, repair and replace damaged tissues and cells. The efficacy of the regenerative medical process using stem cells is not hidden to anyone. It has been in use for tissue engineering and self-renewal of cells for long in the medical realm.

Amongst different cell types, autologous or induced pluripotent stem cells are the key elements for re-engineering new cells or tissues. It is easier to instill a mutation technique in the iPSC. And hence, it can differentiate itself in many cell types to repair damaged tissues or cells affected by disease or trauma.

The scientist at the Stanford University School of Medicine has discovered another use of iPSC. With an improved immune system using iPSC, it can attack or prevent the development of cancer.

The discovery of the new evolution of induced pluripotent stem cells may result in the development of vaccines for cancers. The proposed vaccines are averse to the different types of cancers too. This new technique with the self iPSC of individuals can result in an immediate identification of the disease beforehand. Hence, the possibility of disease prevention is much easier.

The study reveals that if mice get vaccinations with induced pluripotent stem cells beforehand for their immune systems, they can recognize cancer cells, and restrict their effects. Based on this revelation, a new vaccine may be in the pipeline to cure cancers from the root.

The functions of the cancer cells are as similar as those embryos. Genes generally face restriction for growth after the birth. And embryos aid in the revival of these cells during the pregnancy period. To make their technique work, the scientists required the mice recognize this phase in their body. They were to make their immune system boosted. So, they collected skin or blood cells from the mice and transfused them with iPSCs. They acted the way cells act in the fetus. The iPSCs and the cancer cells share a similarity for carrying the same protein type on their surface.

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The first target of the research was to inactivate the stem cells of the mice with radiation. And hence, the development of the cells in the mice saw prevention. After it, the mice received an injection combined with a substance, activating the immune system to function. Each of the mice received injections every week for a month. After this, they received implants of different cancer forms. These tumors saw a rapid growth in the mice without any treatment with the dead stem cells. However, all the mice with iPSC injections were able to defy all the ill-effects of cancers. The tumors gradually became smaller in size as well. Simultaneously, many mice with breast cancer symptoms improved their conditions, while others resisted the further provocation of the skin cancer too.

The mature cells build the body’s tissues. The iPS cells grow without any restrictions in the mature cells. They are viable as well to act as anti-cancer vaccines and recognize immature progenitor cells. Injections with iPS cells having resemblances with recipients’ cells intensify the functions of the immune system. The genetically modified cells are incapable of replicating, so the immune system recognizes a variety of cancer types. Hence, it proves that an immunized living mechanism with matched iPS cells can prevent the growth of cancer cells or tumors.

To restrict the tumor growth in humans, the replication of the stem cell must be paused. And so, these cells could serve us a purpose to develop cancer vaccines for true patients. At the same time, pluripotent stem cells have immunogenic components to be used as the best immune response against the cancer cells.