Researchers have been working hard to discover a way to make use of the body’s own t-cell’s to fight cancer & destroy it. Clinical trials have been conducted & some individuals who were participants have gone in to complete remission using this fascinating & novel new approach. This is named “gene therapy” & researchers have been working furiously for years looking for ways to utilize the body’s own cells to be reprogrammed to fight & destroy cancer cells.
A clinical trial held at The University of Pennsylvania involved providing this treatment to participants who suffered from leukemia. participant in particular, a man who had suffered from leukemia participated in the trial & it turned his life around for the better. Chemotherapy was no longer effective for his disease. A few weeks after this treatment, they was in complete remission with no trace of cancer to be found. It is now a year later & they is still cancer free. There were an additional patients who participated in this trial. had another complete remission of the leukemia & the third participant had a partial remission result. These results are promising & designs are being made for further gene therapy trials.
The Procedure: This trial involved the removal of billions of a person’s T-cells. T- cells are of the white cells in the human body whose function is to fight & destroy viruses & tumors. One time these t-cells are removed they are genetically reprogrammed with new genes. These new genes actually teach the t-cells to seek out & destroy cancer in the human body. They are then reinjected back in to the patient.
The doctors who are part of the trial are not stating yet that this is a cure. They say the treatment is still experimental & has only involved a few patients. This trial has been written about in The New England Journal of Medicine & Science Translational Medicine. Plenty of researchers are excited about it & feel it is a significant achievement in the field of gene therapy to fight cancer.
The doctors leading this study and trial said they were also stunned by the results of complete remission. Although this is still experimental at this point, researchers hope to replicate this study again and see the way it responds to other types of cancer.
This procedure fundamentally could make use of a person’s own immune method to kill cancer cells. Researchers are now trying to choose if other types of cancer might even be responsive to this gene therapy.
Tumor Destruction by T-cells: Scientists are trying to choose how to make these modified t-cells damage tumors. This particular research study completed at The University of Pennsylvania appears to have been able to accomplish this by leaving a population of “memory” t-cells” within the body that will be able to remultiply when needed, as they will recognize the development of cancerous cells.
This gene therapy idea of genetically modifying the body’s t-cells began in the 1980s with research conducted in Israel. Over the years much research has continued to occur in this area and it seems that scientists are making great progress. Researchers are hopeful that day soon, these “cancer killer” t-cells” will effectively damage cancer and be obtainable as a therapy option for people suffering from this horrible illness.
Another danger could be the overwhelming number of cancer cells that can die off all directly. This can overwhelm the liver and kidneys and lead to “tumor lyses“, a potentially deadly reaction. Doctors are working on this issue by providing drugs which will help protect the kidneys while this method is occurring.
Potential Dangers of T-Cell Therapy: Although this research is incredibly promising there’s positive dangers still inherent to it. A person may become vunerable to infection because the treatment will damage both healthy and cancerous cells simultaneously, in this leukemia case wiping out a patient’s whole B-cell population. Doctors are providing these patients with precautions such as periodic infusions of immune building substances to prevent infections from occurring.
Additionally there may be other reactions which may be life threatening because everybody is distinctive and the modified t-cells can target cancer cells anywhere in the body. Therefore if there is cancer in the lungs, the lungs may become overwhelmed and the patient can create breathing issues which can be unsafe. Additionally side effect reactions that occur from this treatment include high fevers and inflammation.
The Future: Researchers are excited about the future of genetically modified t-cell therapy in treating & even destroying cancer. Although it may be years away, the hope is to ideal the therapy & make it obtainable to someone who may benefit from it. Lots of hurdles still exist including how this treatment could be massed produced by the pharmaceutical industry. Until that time, researchers continue to work hard & are grateful for the astonishing results of complete remission they have already achieved in several patients suffering from leukemia.
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