Human Gene Therapy

Demolishing genetic diseases from the human race has been and always will be a key role in science. However, there comes a point in time when moral standards have interjected the betterment of cleansing genetic diseases. One of the many branches of science that has the complete capability to exterminate our destiny of any genetic diseases, gene therapy, is being silenced due to the curse of society’s moral standards. There is a very narrow line in what is not morally correct and ethical to standards of people; causing the advancement of procedures like gene therapy to be narrow. The only explanation to gene therapy awaits on what we, as a community, can bring about for the future generations, but this is

Fifty years after the idea of gene therapy was first proposed, gene therapy has become a possible treatment for a couple different diseases. Before this treatment was approved, some serious unfavorable effects were found in clinical trials. However, these effects fueled more basic research in order to improve, in efficiency and safety. Gene therapy has been used for patients with blindness, neuromuscular disease, hemophilia, immunodeficiencies, and cancer.

Whether gene therapy should be allowed to be used in practice is currently a very controversial topic. In my opinion, I do not think that it should be allowed. Gene therapy is a technique where genetic material is inserted into a patient to replace missing or defective genes. Gene therapy can be further broken down into two categories: somatic and germline. From there, somatic gene therapy can be approached in two ways: in-vivo and ex-vivo. For the process of gene therapy to begin, the proper vector needs to be acquired. Once a vector is chosen, the vector delivers the new gene into the target cell. Then, the target cell becomes infected with the vector. Next, the vector’s genetic material is inserted into the target cell. Then finally, functional

There are two types of gene therapy; germline gene and somatic gene therapy. Germline gene therapy is considered to be a safer option for humans. This method makes changes to the gamete cells that are used in the reproductive process thus, the functional genes need to be inserted into the chromosomes. Somatic gene therapy is when genes are transferred to body cells by inserting vectors into a person’s body. There are three things that gene therapy can do; replace a mutated gene that causes a disease with a healthy gene, deactivate a mutated gene that is not able to function properly, or introduce a new gene into the body to prevent diseases. There has been a clinical trial in the past where over 3000 people were treated with gene therapy and the results were good however, this treatment method has serious health

Li, and Huang discuss the controversial topic of gene therapy by first providing a factual summary of gene therapy. Their introduction goes into the specifics of the types of vectors (carriers that deliver a gene to target cells) used to transfer genes in order to aide damaged proteins. Afterwards, they transition into the detailed of process of gene therapy. They start this off with naked DNA and state it is the simplest approach to nonviral transfers and the least toxic method. However, despite being the least toxic and a nonviral transfer it does not have as great of an effect as Cationic lipids. Cationic lipids have been used in various experiments but are known to be safe only when administered in small doses. Furthermore they go into

Gene therapy is a relatively new technology that has shown some promising results. Such as the drug called Strimvelis that is used to help children with severe combined immunodeficiency, a disease that leaves infants with little to no protection against viruses, bacteria, fungi, and other potentially harmful things. It appears to be a cure carried out through a genetic pair. Strimvelis was tested on 18 children, starting 15 years ago, all of whom are still alive today. Gene therapy is used to inject genes into a person’s cells and tissues in order to treat a disease, as well as hereditary diseases where an abnormal allele is replaced with a fully functional allele. The carrier, called a vector, is used to transport the normal gene to the target cells. The most common type of vector are viruses that have been genetically altered to carry human DNA. Scientists have been trying to control the way the viruses have evolved encapsulating and delivering their genes to normal cells in a pathogenic way by manipulating the viral genome to remove disease-causing genes and inserting healthy ones. Theoretically, it is possible to transform either the cells of the body (somatic) or the cells of the sperm, ova, and their precursors (germline). All of the gene therapy experiments so far on humans have been directed to somatic cells, because germline experiments have been remaining controversial. Somatic gene therapy is split into two broad categories: ex vivo (cells are modified outside of the body then returned back again) or in vivo (genes are changed in cells while still located inside of the

Gene therapy is a technique that allows for the modification of genes to treat or prevent disease and may become a viable way for doctors to treat a disorder without the need of drugs or surgery. This technology is still experimental, being only about three decades old with the first successful human trial occurring in 1990 when Dr. William French Anderson treated Ashi DeSilva for Adenosine deaminase deficiency (ADA deficiency), which is a genetic, metabolic disorder which causes immunodeficiency. Researchers are testing several approaches to gene therapy, which include replacing mutated, disease-causing genes with a healthy copy of the gene, inactivation a malfunctioning gene, and introducing new genes into the body that will help fight diseases. Over the last two decades, about 2,000 trials have been conducted or approved and future prospects for this technique are encouraging, include the engineering of human genetics in ways that may prove controversial and difficult to predict. This paper will explain how gene therapy works, what it has accomplished so far, its future and current hurdles, and what this all means for our species.

Gene therapy is a rapidly developing technology first used in 1990.1 It involves the use of modified DNA inserted into an organism with a missing or mutated sequence. There are two methods of delivering this correction into the patient’s cells. In the viral method, a virus containing the vector with the corrected form of the gene, infects the cell naturally. Adenoviruses, adeno-associated viruses, lentiviruses, and retroviruses can all be used. They each utilize a different method of delivery and form of DNA. Adeno-associated viruses and lentiviruses are the easiest forms to construct.2 The corrected DNA faces many obstacles to gene expression and ultimately protein production. The viruses must target and enter the correct cell, avoid

Treatment and prevent the disease by transfer the copy of gene to disordered gene that we need to fix or make correction for it. We need to resolve the disease or causes of the diseases, and the drug's use to reduce the symptoms for inherence diseases.

In the medical journal article “Harlequin Ichthyosis”, the authors Claire A. Scott, Shefali Rajpopat, and Wei-Li Di explain how “ABCA12 mutations underlie defective lipid transport, reduced protease regulation and skin barrier dysfunction." The first known case of HI was discovered in 1750, and was documented in the diary of Reverend Hart. The effects are apparent at birth and are commonly clinical. The entire body is born covered in a compact layer of white plates of scales separated by deep red cracks. The thickened skin, usually restricts movement and causes limb contractures, inevitably causing digital necrosis and autoamputation.

Clinical trials are research studies that assist doctors in determining whether a gene therapy approach is safe or too detrimental to the human body. They help doctors understand the all of the positive and negative effects of gene therapy (What Is Gene Therapy?). Gene therapy is done by replacing a mutated or abnormal gene with a new gene that has absolutely no foibles. There are many different approaches to gene therapy depending on the type of disease (How Does Gene Therapy Work?). One of the most common forms of gene therapy is done by drawing the patient’s blood and also taking their bone marrow from their hip with a very large needle. Then, the doctors take the blood and bone marrow to a lab to examine the cells. After examining the cells, they are exposed to a virus or another type of vector that will encompass the desired genetic material. Once the vector enters the cells, the cells are then injected back into the body of the patient either through a vein or a tissue. Viruses are not the only vectors used in gene therapy, other vectors can be stem cells or even liposomes (What You Can Expect In Gene

Gene therapy is a relatively new practice in genetics that aims to correct mutations at a molecular level instead of using drugs or surgical approaches. Different approaches to gene therapy include gene augmentation therapy, gene inhibition therapy, the killing of specific cells, somatic gene therapy, and germ line gene therapy. Through gene augmentation therapy, faulty genes would be taken out of the genome sequence and replaced, effectively ending the effects that the mutated gene had on the body. An example of a gene that would be replaced is the mutated p53 gene. If functioning correctly, the p53 gene should stop the formation of tumors.It works by binding to DNA in the cell and stimulates the production of p21, which when combined with a cell division- stimulating protein, stops cell division. When the p53 is mutated, it fails to stimulate the production of p21 and the cell begins to divide uncontrollably. The gene therapy would replace the faulty p53 gene with a normal p53 gene.

Deoxyribonucleic acid (DNA) was discovered in 1944 by Avery and colleagues. Avery identified DNA as the primary genetic material. Watson and Crick later discovered the double helix structure of DNA. Leder and co-workers deciphered the triple nucleotide code that designated the amino acids from which proteins were built. The science of molecular biology was born (Sokol, Gewirtz, 1996). In 1990 a four year old girl who was suffering from severe combined immunodeficiency (SCID) was the first to undergo gene therapy. White blood cells were removed from the girl and the cells were inserted with normal copies of the defective gene and returned into the girls circulation. Her condition improved with four treatments and

“Although we are all members of a single species, we differ from one another in such visible traits as the color of our skin and the shape of our noses, and in biochemical factors such as our blood types and our susceptibility to certain diseases” (Sheridan College Institute of Technology and Advanced Learning, 2013, p. 34). To understand human physical development and evolution one has to understand biological anthropology as the focus on humans as biological organisms. Biological anthropologist conduct research, and form techniques of modern molecular biology to learn about human variation and how it relates to different environment humans lived in as well as their conditions.

The word science comes from the Latin word "to know" (Science Made Simple, 2014). In