Storme Sen
Scientific and technological advances have propelled mankind into the modern era whether confronting us with new weapons of war that kill thousands or medical discoveries that save thousands. Scientists almost always start out with good intentions, but the question is what the end product will be used for, and if the end justifies the means. Alfred Nobel (patron of the celebrated Nobel Prizes) created the explosive, dynamite, which was later used in warfare and killed his brother on the battlefield. From then on he dedicated his life towards peace. Adolf Hitler’s scientists performed horrific experiments on the prisoners at concentration camps- is it morally acceptable that we use the information that they discovered? How far should we go in our quest for knowledge?
At Youth Parliament 2007 in Wellington, New Zealand, a select committee of Youth MPs gathered to discuss whether therapeutic cloning of stem cells should be allowed in their country. There was a range of different viewpoints on this issue represented at the select committee- such as those held by the Bioethics Council, the Nathaniel Centre (a catholic bioethics centre) and the Ministry of Health.
Stem cellsThe latest biological controversy is over stem cells and the process of therapeutic cloning. Stem cells are undifferentiated cells, cells that are not specialized yet into specific types such as skin cells. They are able to transform into any type of cell given the correct stimulation. Hence, these cells have the potential to repair damaged tissue and develop treatments for diseases such as chronic heart disease, Parkinson’s, and type I diabetes. These remarkable cells are located in the early embryo, the foetus, the placenta and in some mature tissues and organs throughout the body. The most recent discovery, in February 2007, by researchers from Auckland University in New Zealand and the Sahlgrenska Academy in Sweden, revealed that stem cells can also be located in a certain area of the brain. Stem cells have the potential to revolutionize medical treatments; however, the obvious problem is that they are in hard to reach places.
The Controversy
Is it ethical to use embryos in scientific research?
Embryonic stem cells are the easiest cells to isolate and manipulate. Unlike adult stem cells they are able to evolve into any other type of cell whereas an adult stem cell is limited in the cells it may transform into. For example, the stem cells found in a part of the brain can only change into different types of neurons. To discover the true potential of stem cells further research is needed and this would require a steady supply of them, indeed, much of the breakthrough research we have to date was performed on aborted foetuses and surplus IVF (in vitro fertilization) embryos.
The other issue lies around the concept of cloning. Therapeutic cloning is often mistaken for embryo cloning, when in fact embryos are not being cloned at all. Genetic material is taken from a cell in an adult’s body and fused with an empty egg cell. With the correct stimulation the new cell is able to grow into an embryo. The stem cells can then be harvested from the embryo for use in treatments or research. They do not intend to recreate life, but to create life-saving cells.
The Cons
Some people do not feel therapeutic stem cell cloning is ethical, and abortion itself is a controversial topic for many. There has been no therapeutic stem cell cloning in New Zealand thus far and the representatives from the Nathaniel Centre were adamant that it should stay that way. They expressed nothing but contempt for the idea of producing an embryo for the sole purpose of extracting a bunch a cells from it then destroying it, arguing that “it is a scientific fact that life begins from conception”. This in itself is a disputed argument, with a lot of disagreement about the moment an embryo is considered a human being. While those against therapeutic stem cell cloning argue for “the dignity of human life” others believe that aborted embryos or surplus IVF embryos (of which there are currently 5000-7000 and the maximum number of years they can be stored in New Zealand is ten) should be utilised instead of simply being destroyed.
Another concern was about where this sort of research is leading us? MoRST (the Ministry of Research, Science and Technology) assured the committee that any scientific exploits were monitored under strict regulations, however, what is to stop a rogue scientist from toying with nature? Could we be heading to the point of human cloning, many people’s worst fear, where we will be selecting genes to produce perfect individuals?
The Pros
Embryonic stem cells are thought by most scientists and researchers to hold amazing potential for finding cures for spinal cord injuries, cancer, heart disease, hundreds of rare immune system and genetic disorders and much more.
The huge advantage of the process of therapeutic stem cell cloning is that the genetic material of the stem cells and the patient are the same, so that there is no danger of rejection by the patient’s immune system. Currently, for example, when an organ is transplanted into a patient, that patient has to take strong immune suppressant drugs for the rest of their lives.
The Future
While stem cells hold tremendous potential, and there have been many promises made, the fact remains that this potential is far from being realised. There are many technical and ethical barriers to consider before stem cell based therapies become a reality.
While some members of the select committee at Youth Parliament believed that this sort of research is important for our continued scientific advancement, others felt that allowing therapeutic cloning in New Zealand might taint the clean and green natural image the country has and undermine New Zealand’s reputation of taking a strong stance in controversial areas like G.E. and nuclear power.
Currently, the therapeutic cloning of stem cells is permitted in Belgium, the UK and Sweden. Whether or not it will be permitted in New Zealand is yet to be seen, however, the select committee at Youth Parliament concluded that if stem cell research should only be allowed using surplus IVF embryos or aborted fetuses. The committee is also hopeful that soon scientists will find a way to manipulate adult stem cells to changing into any type of cell, which would nullify the use of embryonic stem cells.
Learn More:
- Ministry of Research, Science and Technology - Stem Cell Research in New Zealand
- The Bioethics Council of NZ
- Australian Stem Cell Centre
Take Action
- Get in contact with, or try and organise a class trip to, Auckland University’s Liggins Institute. This is the main place in Aotearoa New Zealand for research concerning embryos etc.
- Interested in issues around bioethics? The RSNZ in association with Bioethics Council and the New Zealand Organisation of Rare Disorders run a yearly essay competition (with prizes!) on different ethical issues of biology
- Organise a debate in class where you explore both sides of the issue.