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Wednesday, May 7, 2014
This year in College Writing II my topic consisted of stem cells. For my research paper I introduced to my audience what stem cells were and the ethical dilemma behind them. I also illustrated other research that has been done on stem cells, my opinion on them, the Church's belief on stem cells, how stem cells can be beneficial and the breakthroughs that can potentially save millions of lives. In my photo essay I went through the process of how an individual can donate stem cells. In this project I wanted my audience to understand the process of donating stem cells and how easy it really is to donate them. Stem cells are the future of medicine and that is why I wanted to educate my classmates and myself on this medical advancement.
Running Head: STEM CELL
RESEARCH PAPER
Stem Cell Research
Dion Ursino
Lewis University College Writing
II
Figure 1: Finding the Best Stem Cell for the Job
Lewin,
Sarah. "Finding the Best Stem Cell for the Job." Vector Finding
the Best Stem Cell for the Job Comments. N.p., 12 Aug. 2013. Web. 02 May
2014. vectorblog.org
Think about the
world if much of the diseases and illnesses our family and friends and our
selves encounter were diminished. Visualize a world where illnesses such as
Parkinson’s, cancer, Alzheimer’s, Leukemia and other illnesses could be cured.
Recent research has been conducted early on in this century that has suggested
that stem cells are the answers in curing these illnesses. This ability to use
stem cells has been recently discovered late in the twentieth and beginning of
the twenty-first centuries. This enormous discovery can impact the health
sciences field in an amazing way. Stem cells are the future in medicine, must
be ethically pursued and must fully be utilized and understood through
extensive research and careful experimentation because the potential stem cells
have is immense.
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Figure 5:
Organ Transplant Statistics
Parks,
Peggy J. (2009) Stem Cells. San Diego, CA: Reference Point, Print.
(p. 74)
|
Stem
cells have the capability to do amazing things and to fully understand their
complexity and abilities an individual must first learn about what stem cells
are. A stem cell is “an undifferentiated cell of a multicellular organism that
is able to give rise to indefinitely more cells of the same type and from which
certain other kinds arise by differentiation” (Damle, 2012, page. 1). Stem
cells are parent cells, which have the ability to create all different cells in
the body. “The human body is made up of trillions of cells of more than 200
types; all these cells are produced by stem cells” (Parks, 2009, p. 2-3). Two
types of stem cells have been the center of attention. One of these types
consists of pluripotent or embryonic stem cells. The other consists of adult or
somatic stem cells. These types of cells have the potential to make a major
impact in our world. According to Peggy Parks stem cells have the potential to
grow human organs, prevent and treat birth defects, be used for healthy cell
transplantation to cure diseases, have unknown potential and can be used for
drug development;
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Figure 2: The
Promise of Stem Cell Research
Parks,
Peggy J. (2009) Stem Cells. San Diego, CA: Reference Point, Print. (p. 64)
|
However, there is
controversy regarding pluripotent stem cells (page, 64). The way
pluripotent/embryonic stem cells are harvested is where the ethical dilemma
arises.
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Figure 4: Stem Cell Treatment and Cancer Survival
(1960-2003)
Parks, Peggy J. (2009) Stem Cells. San Diego,
CA: Reference Point, Print. (p. 80)
|
Pluripotent stem cells are cells that do
not have restrictions. These stem cells can “give rise to any specialized cell
in the body” (Damle, 2012, page 2). With this incredible ability, researchers
have desired pluripotent stem cells. The only way scientists have been able to
obtain these cells is through extracting them from human embryos and fetuses.
Harvesting these cells result in the destruction of human life. “Scientists can extract up to
200 stem cells from a three to five day old embryo also known as a blastocyst” (Parks, 2009, page 66). Other
advantages pluripotent stem cells have is that they are relatively abundant and
they are easy to identify. Disadvantages include immune rejection by the
recipient and these pluripotent stem cells are derived from embryos and
fetuses. The ethical dilemma scientists face is whether or not taking the life
of an unborn human is morally right. Is one embryo worth saving the life of
many? What rights does a fetus have? These are some of the questions we have to
keep in mind when discussing the issue of pluripotent stem cells.
![]() |
Figure 3: Stem Cell Location
Parks, Peggy J. (2009) Stem Cells. San Diego, CA: Reference Point, Print. (p. 69)
|
“In agreement with their anti-abortion stance, the Church
supports adult stem cell research, but opposes embryonic stem cell research” (Powell, 2007, page 2).
According to the Catholic Church life begins at conception. “The Church believes there is
dignity in life, and all life needs to be respected” (Powell, 2007, page 2). This
belief demonstrates the Catholic Church’s stance against embryonic stem cell research and its
practices. A fetus has the right to live and an individual should not decide
its fate. A question to consider is whether or not the end justifies the means?
Many people would (utilitarian view) argue that helping the greatest number of
people is all that matters and it would be worth taking the life of a fetus. Others
would also argue that embryonic stem cell research is fine because in vitro
fertilization is legal. In vitro fertilization is the process by which an egg
is fertilized by sperm outside of the body and then returned into the woman’s uterus. In this process
many fertilized eggs are thrown away and not put to use (Parks, 2009, page 70).
This can result in the destruction of life because the fertilized eggs that are
not used are either thrown away or potentially frozen and never put to use. The
solution to this is simple. The fertilized eggs that are not used in in vitro
fertilization should go towards stem cell research and to people that may need
treatment. This is a solution that is reasonable for the use of embryonic stem
cells.
Another
source of stem cells are somatic or adult stem cells. “Somatic simply refers to
cells of the body” (Blau et al, 2002, page 1). These adult stem cells are
capable of changing into only limited types of cells. “The primary roles of adult
stem cells in a living organism are to maintain and repair the tissue in which
they are found” (Blau
et al, 2002, page 1). “Researchers once thought these stem cells were only found
in bone marrow” (Wade,
2011, page 1). Recent discoveries have found adult stem cells in other parts of
the body. Stem cells can now be found in the blood, fat, skin, intestines and
other places (Parks, 2009, page 69). Advantages
of adult stem cells include: adult stem cells can be found and isolated in
adult patients and there is no immune rejection if the stem cells were
originally taken from the same patient (Parks, 2009, page, 82) Disadvantages
include: adult stem cells found in the body may be hard to identify and they
may be scarce in number (Parks, 2009, page 82.) Further comprehensive research
has been done on adult stem cells, and scientists are now able to create
induced pluripotent stem cells. “Induced pluripotent stem cells are generated by
reprogramming adult stem cells to a pluripotent state by the introduction of
specific characteristics” (Parks, 2009, page 70). This new technology allows for
scientists to “implant
new genes in cells in order for the cell to forget what it is” (Parks, 2009, page 70). These
cells could then have the same function of an embryonic stem cell; however, there
is one problem with this new technology. Sometimes the cells that have been
implanted with new genes tend to remember what their primary purpose was after
the manipulation, so then there intended function will not occur. This makes
the cells useless for the desired location. More research needs to be done on
this method because this can be a huge breakthrough in science.
There have been many scientists that
have been experimenting with stem cells. James A. Thomson was one of the first
scientists that worked on embryonic stem cells. Thompson performed many of his
own experiments with mouse embryonic stem cells. He theorized that the same mix
of chemicals used to grow mouse stem cells would not work with human embryonic
stem cells. In 1995, Thompson created a cell culture recipe that derived from
monkeys, which is a species much closer to a human (Parks, 2009, page 85).
Another Scientist by the name of Shinya Yamanaka of Japan successfully
reprogrammed normal human skin cells, which became stem cells with all the
versatility of embryonic stem cells (Parks, 2009, page 86). Another scientist,
Anthony Atala, director of the Wake Forest University School of Medicine’s
Institute for Regenerative Medicine discovered that amniotic fluid shares the
versatility of embryonic stem cells. According to Atala he has been able to
successfully produce every cell type they have attempted to produce (Parks,
2009, 87). As we have seen from this research embryonic stem cells do not need
to be used. Adult stem cells can be reprogrammed, embryonic stem cells can be
created and more pluripotent types of cells still have yet to be found or have
been already. Further research still needs to be done in perfecting these
techniques.
Stem cell research can cure many different types of
illnesses. Illnesses like Parkinson's Disease, Alzheimer's Disease, Myeloma,
Hodgkin's Lymphoma, Non-Hodgkin's Lymphoma, Leukemia, Severe burns, spinal cord
injuries, and heart disease can be cured with stem cells. Extensive
experimentation has been done on mice and monkeys. Injecting embryonic stem
cells into these animals have proven to be successful in curing illnesses and
injuries as the ones listed earlier. According to figure 4 stem cells really
have given people hope.
“In the United States and
other countries progress has been slowed by funding and regulatory restrictions” (Aylesworth, 2010, page 33).
On the other hand, “adult stem cell-based therapies are already in widespread
clinical use and have been for over forty years in the form of bone marrow
transplants” (Damle,
2012, page 3). With more research on the potency of adult stem cells scientists
hope that adult stem cells will be able to cure much of the illnesses humans
encounter. Adult stem cells seem to be the answer. There is no ethical drawback
and adult stem cells have already proved to work in humans. Another reason why
scientists are so excited about stem cell research is the potential of growing
human organs in labs. Several experiments have been conducted, and have
accomplished this amazing endeavor. If this technique is perfected, it is
possible that organs grown from stem cells could increase the supply of tissues
and organs needed for transplants. This procedure can save an enormous amount
of individuals.
Ultimately, much of this research comes from
funding. This funding comes from our government and other private donors.
It
all started in 1993 with the Clinton Administration. In 1993, “the National Institute of
Health Revitalization Act enabled the National Institution of Health direct
authority to fund human embryo research for the first time” (Aylesworth, 2010, page 34).
In the year 2000, President Clinton allowed funding of research on cells
derived from aborted human fetuses, but not from living embryos. When President
Bush came into office he initially banned research funding while his
administration’s
policy was being developed. Bush decided to only fund stem cell lines that
existed before 2001. “On March 9, 2009 Barrack Obama reversed the restrictions on
embryonic stem cells that had been placed by George Bush” (Aylesworth, 2010, page 35).
Stem cell funding continues today in an attempt to further advance medicine.
Stem
cells are the future of medicine. Killing a human to cure others is not the
answer; nevertheless, the embryos discarded in in vitro fertilization should be
utilized to better understand how a pluripotent cell acts and to save and cure
lives. Adult stem cells have had a major influence and further research
developing these cells can lead us to an answer with out ethical debate.
Millions of lives can be saved with this new scientific breakthrough.
Here is a video to further spark awe and
excitement! http://www.ted.com/talks/anthony_atala_printing_a_human_kidney
*photos would not move down to corresponding positions.
References:
Aylesworth, B. E. (Ed.) (2010). Stem Cell Research and
Science : Background and Issues. New York: Nova Science Publishers. Web 8
April 2014
Blau, H., M. Goddell, and C.
Svendsen. "Recent Developments in Stem Cell Research.” Gerontological Society of America.
Oct. 2002. Web. 8 Apr. 2014.
Damle, SG. (E.d) (2012)
"Stem Cells? Promise to Cure?" National Center for Biotechnology
Information. Medknow Publications, Web. 10 Apr. 2014.
Lewin,
Sarah. "Finding the Best Stem Cell for the Job." Vector Finding
the Best Stem Cell for the Job Comments. N.p., 12 Aug. 2013. Web. 02 May
2014.
Parks, Peggy J. (2009) Stem Cells.
San Diego, CA: Reference Point, Print. (pages 1-17, 60-94)
Powell,
Alvin. (2007) "Stem Cells, through a Religious Lens | Harvard
Gazette." Harvard Gazette. Harvard News Office, Web. 10 Apr. 2014.
Wade, Markeda. (Ed.) (2011) "House Call: Saving a Life by
Donating Stem Cells." OncoLog and The University of Texas MD Anderson
Cancer Center. Web. 8 Apr. 2014.
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