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The controversy of gene therapy
The controversy of gene therapy
The controversy of gene therapy
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Genes are made of DNA – the code of life (Gene Therapy- The Great Debate!). The changes in genes may cause serious problems, which we called genetic disorder. In theory, the only method to cure genetic disorders is gene therapy, which basically means the replacement of genes in order to correct the loss or change in people’s DNA. Although gene therapy gives patients with genetic disorders a permanent cure, it is controversial because it has safety and efficacy problems, and raises ethical issues.
Gene therapy enables patients to survive incurable diseases. In the field of genetic diseases, ADA-SCID, CGD and hemophilia are three main ones. ADA-SCID is known as the bubble boy disease. CGD is related to immune system that would lead to fungal infections which are fatal. Patients with Hemophilia are not able to induce bold bleeding (Gene therapy for diseases, 2011). Gene therapy also has good effects on cancer treatment and neurodegenerative diseases, which include Parkinson’s disease and Huntington’s disease. Viral infections, including influenza, HIV and hepatitis can also be treats by it (Gene therapy for diseases, 2011). According to the Science Daily in 2011, gene therapy now can apply to heart failures and neurologic diseases as well.
Gene therapy gives patients who born with diseases that are incurable to traditional medicine a permanent cure. If patients received germ-line therapy, which involves replacing disordered genes in sperms or eggs, their offspring would also have correct gene orders. The positive effect would influence the whole family.
However, the safety of gene therapy should be carefully considered. First, it may cause angiogenesis, which may trigger nonfunctional vessels or stimulation of angiogenesis in ...
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...anvalues/pdf/gene-therapy.pdf [Accessed 14 July 2011]
Bergeson, E. (1997) The Ethics of Gene Therapy [Online] Available at: http://www.ndsu.edu/pubweb/~mcclean/plsc431/students/bergeson.htm [Accessed 14 July 2011]
Safety Issues with Gene Therapy, (2011) [Online] Available at: http://scienceray.com/biology/safety-issues-with-gene-therapy/ [Accessed 14 July 2011]
Rocholl, B. Gene Therapy: Revolutionizing Medicine [Online] Available at: http://www.ndsu.edu/pubweb/~mcclean/plsc431/students/brandi.htm [Accessed 14 July 2011]
Safdar, M. (2010) Gene Therapy: Advantages and Disadvantages [Online] Available at: http://www.biotecharticles.com/Genetics-Article/Gene-Therapy-Advantages-and-Disadvantages-271.html [Accessed July 17 2011]
Gene Therapy for Diseases, [Online] Available at: http://www.asgct.org/about_gene_therapy/diseases.php [Accessed 21 August 2011]
Over 20 years after the proclamation of these specific ethical guidelines, we are introduced to the University of Pennsylvania’s Institute for Human Gene Therapy’s study on a delivery mechanism for gene therapy that resulted in the death of an 18 year old research subject Jesse Gelsinger. Gelsinger suffered from partial OTC (ornithine transcarbamylase) deficiency caused by a defective single gene (Obasogie, 2009).
SUMMARY: Director of the Ethics Institute, Ronald M. Green, in his article “Building Baby from the Genes Up” discusses why he thinks that genetically modifying babies genes is more beneficial than destructive. He begins his article off by mentioning a story of a couple who wishe to genetically modify their baby so that they could make sure the baby would not develop the long family line of breast cancer. Green then notifies the reader that no matter where they stand on the matter, genetically modifying babies is going to become more and more popular. Even the National Institute of Health is beginning to invest in technology that can be used to genetically modify human genes. He then explains how genetically modifying human genes can be beneficial,
Germline gene therapy is where the correct "good" gene is inserted into the germline in place of the defective "bad" gene, and when reproduction occurs the gene will be passed on to the progeny. Inserting the "good" gene into the very early embryo sta ges of development allows for both germline and somatic cells to be corrected. Government has limited the research to only somatic cell gene therapy such as performed in Cystic Fibrosis research.
... fight the disease. It is crucial that regulation be a necessary component of gene therapy research and applications. In hopes that the government can regulate and can receive this treatment, not restricting it to people that has serious genetic diseases. Gene therapy will change the field of medicine from what it is today. As scientist discovers more genes and their functions, the potential of this treatment is limitless. Though gene therapy is an auspicious treatment choice for numerous diseases (including inherited disorders, some types of cancer, and certain viral infections), the procedure remains precarious and is still under study to make sure that it will be safe and effective. Thus government regulators and scientist must take a lead role in adopting a practical approach to address these issues and determining the correct procedures for dealing with them.
...ne starts life with an equal chance of health and success. Yet, gene therapy can also be thought of as a straight route towards a dark outlook, where perfection is the first priority, genes are seen as the ultimate puppeteer, and personal freedom to thrive based on one’s self isn’t believed to exist. With the emergence of each new technological discovery comes the emergence of each new ethical debate, and one day, each viewpoint on this momentous issue may be able to find a bit of truth in the other. Eventually, our society may reach a compromise on gene therapy.
Over 40 years ago, two men by the names of James Watson and Francis Crick discovered deoxyribonucleic acid, or DNA. DNA is hereditary material in humans and almost all other organisms (What is DNA?). From this finding, gene therapy evolved. Today, researchers are able to isolate certain specific genes, repair them, and use them to help cure diseases such as cystic fibrosis and hemophilia. However, as great as this sounds, there are numerous ethical and scientific issues that will arise because of religion and safety.
Gene therapy works in three ways; it works to replace a missing or defective gene with a normal one, replace a faulty gene so that it will function properly and it works to activate and deactivate a gene, allowing it to “switch” on and off. Gene therapy is done by the deliverance of a gene to a cell via a carrier, or vector, such as a virus. Scientists lean more towards using a virus because they can seek out particular cells and transfer pieces of deoxyribonucleic acid into them. Scientists also take advantage by deactivating their harmful characterizes and modifying them to carry particular gene into designated cells. After gene therapy is done, the genes can then stimulate the production needed for standard functioning, allowing that gene to return to its previous normal state. Therefore, if a patient were to be in the beginning stages of cancer, gene therapy would seek out the cancerous gene and replace it with a healthy one and minimizes the disease from
Despite being magical of gene therapy, it is high-risk. Few people got benefits from it, and it has a low rate of success. Prior to the human trial, Batshaw and Wilson had done experiment on animals to ensure the safety. Over 20 experiments have been done on mice but only 12 of them survived at last (Sophia, M. and Kolehmainen, J.D., 2000). More seriously, complicating diseases, which can be more dangerous than genetic diseases, might set in during the treatment period. In December 200...
There are two types of gene therapy, somatic gene therapy and germ line gene therapy. Somatic gene therapy involves fixing the defective gene. With this form of therapy, only somatic cells are targeted and not the germ line cells, otherwise known as the gametes or sex cells. If the modification of DNA is confined to body cells only, then the altered gene only affects the patient treated and not any offspring by that patient. Germ line gene therapy changes the genetic pool of the person treated and involves incorporation of an engineered gene into the gametes permanently altering the genes of the patient and these genes would be inherited by future generations. This type of therapy is banned in many countries such as Australia, Canada and Germany due to ethical and technical concerns, including insufficient knowledge about possible risks to future generations (Strachnan). The USA has no federal legislation specific to germ line or somatic gene therapy other than the general US Food and Drug Administration (FDA) testing regulations that apply to all therapies (Is Gene Therapy Safe?).
Lopez, Gerald Gabriel. "Gene Therapy: the Scientific vs. the Societal" The Resource. Jan. 1998. 10 Apr. 2001. .
In this paper, I will argue that genetic therapies should be allowed for diseases and disabilities that cause individuals pain, shorter life spans, and noticeable disadvantages in life. I believe this because everyone deserves to have the most even starting place in life as possible. That is no being should be limited in their life due to diseases and disabilities that can be cured with genetic therapies. I will be basing my argument off the article by “Gene Therapies and the Pursuit of a Better Human” by Sara Goering. One objection to genetic therapies is that removing disabilities and diseases might cause humans to lose sympathy towards others and their fragility (332). However, I do not believe this because there are many other events and conditions in society that spark human compassion and sympathy towards others.
Since its inception, gene therapy has captured the attention of the public and ethics disciplines as a therapeutic application of human genetic engineering. The latter, in particular, has lead to concerns about germline modification and questions about the distinction between therapy and enhancement. The development of the gene therapy field and its progress to the clinic has not been without controversy. Although initially considered as a promising approach for treating the genetic of disease, the field has attracted disappointment for failing to fulfil its potential. With the resolution of many of the barriers that restricted the progress of gene therapy and increasing reports of clinical success, it is now generally recognised that earlier expectations may have been premature.
Savulescu, Julian. “Genetic Interventions and the Ethics of Human Beings.” Readings in the Philosophy of Technology. Ed. David Kaplan. 2nd ed. Lanham: Roman & Littlefield, 2009. 417-430.
In an article titled “The Ethical Implications of Gene Therapy” the group of advisers on Ethical Implications of Biotechnology of the European commission states issues and rules that should be abided by, along with beliefs on the direction of biotechnology. At its present stage, biotechnology focuses on serious diseases which are incurable at the moment, however through this research treatment for these diseases could be found. The group of advisers feel that there should be levels at which research should focus on, instead of jumping into it all at once. Basic research should be carried out prior to clinical trials, and then move on to biotechnology. This can be done by supporting research actions, organizing training and exchange programs or any other appropriate means. Gene therapy protocols require that ethical evaluation consists of processes assuring quality, transparency and efficiency without delays of treatment to the patients who need it. This is crucial because an inefficient, poor quality treatment could cost someone their life. The group also feels that gene therapy research should be restricted to serious diseases for which there is not a current treatment. Expanding research to other things could be done if a medical evaluation calls for it. Equal access should be assured to all researchers within the European Union, thus sharing information and helping to improve orphan drugs. This could also save time and money. In order to insure the public of what is going on, conclusions of evaluations should regularly be published to encourage public debate. The public is not usually informed much about genetic therapy and many people have the wrong idea about it. Should reports be published more often, there will be less public confusion and ridicule.
What are the risks and what are the possible benefits? Currently, gene therapy is one of the only ways to change the genetic makeup of an animal or human. Also, the chance of gene therapy being successful in animals is fifty percent, while in humans it is five percent. Human Genetics Alert believes “Once we begin to consciously design ourselves, we will have entered a completely new era of human history, in which human subjects, rather than being accepted as they are, will become just another kind of object, shaped according to parental whims and market forces”. HGA provides background information on the currently available resources used in Genetic Engineering.