The Hallmarks Of A Stem Cell

Many of us have all heard the saying that a “lizard can lose its tail,” and bizarrely enough it will grow back. This was always considered impossible for humans, an idea belonging in the realm of science fiction, but now the regeneration of tissue is an extremely realistic possibility. Despite some opinions, this process does not happen naturally, or take place as cinematically as one might imagine. Over the past decade, there have been major advances in regenerative medicine, commonly known as stem cell research. Stem cells are undifferentiated cells within the body that have the capability to specialize into any tissue. They are most commonly found in cord blood, bone marrow, organ donations, placenta, and embryos . Stem cells are seen by some as a new miracle treatment, encouraging many countries to invest in their research.

Christopher Reeve, better known as superman, was not only an actor, but also an athlete and an adventurer. On two separate occasions, he flew an airplane sole across the Atlantic Ocean. On Memorial Day weekend in 1995, Chris rode his horse, Buck, to the starting box of a cross-country race in Virginia. Chris had trained and raced horses for almost ten years, so he felt the course ahead of him would be easy. But what Chris did not see coming was just as he and Buck approached the third jump, Buck would come to a sudden stop, sending Chris over the jump. He landed directing on his head, fracturing two vertebrae in his neck. From that day on, he was completely paralyzed. At the time, there was no known treatment, no medication, and no surgery to fix his damaged spine. For the rest of his days, Chris raised money and awareness for research into spinal cord injuries. One of the topics he pushed for was embryonic stem cell research. Christopher Reeve died on October 10th, 2004, never fulfilling his goal to walk again. But if he had gotten the support and funding for stem cell research, his story might have ended differently. Embryonic stem cell research should be funded in the U.S because it could lead to the treatment to many diseases, there are other sources of stem cells, but they are limited to their use, and the eight-celled blastocysts cannot grow any further to form a baby, so it is not harming living human beings.

This article discusses the successful use of experimental stem cell treatments within a variety of clinical trials, discussing the two main types of stem cells, embryonic and adult. The article draws on research published by the Massachusetts Family Institute, "a pro-life group that is opposed to the use of embryonic stem cells" to illustrate the successful use of adult stem cells to reverse the effects of, or cure entirely, a number of severe diseases such as Crohn's disease and lupus. It also references a report by Medical Use Today which highlights encouraging experiments with embryonic stem cells that appear capable of reversing paralysis caused by spinal injuries. Written for religious audience tolerant of scientific advancements, the article focuses almost entirely on the positive aspects of experimental stem cell research, and cites studies that support its preconceptions on the subject. The author, a former "instrument development and computer science professional," possesses a scientific background which informs the construction of the article's overall argument. I found this article by searching the Ontartio Consultants on Religious Tolerance essay database, found at ReligiousTolerance.org.

Embryonic stem cells are found in human blastocysts (Marcovitz 17). A blastocyst is a very young embryo (just a few days old) that contains around 200 undifferentiated stem cells (Marcovitz 17). German Zoologist Valentin Hacker coined the term “stem cell” after he discovered them in a blastocyst of a crustacean (Marcovitz 18). Embryonic stem cells were collected for the first time in 1988 by Dr. James Thomson of University of Wisconsin and by Dr. John Gearheart of Johns Hopkins (Panno 76). These stem cells are unspecialized; they do not perform a specific function like cells such as muscle and nerve do (“Stem Cells”). They are also pluripotent, meaning they have the ability to divide and become specialized cells (“Stem Cells”). This is why stem cells hold so

Embryonic stem cells have the ability to grow into any type of cell that your body contains and can potentially aid in curing diseases and or repair many essential things in your body such as a kidney or a lung. This sounds like an extremely favorable advantage to medical advancements but this subject does summon some intense debates on where the stem cells come from. Embryonic meaning that it comes from the embryo veers many people’s opinion to totally protest any use of embryonic stem cells. Opposing abortions and the use of embryonic stem cells go hand in hand. Many people are just not ready for the responsibility of having a child so they take matters into their own hands and many consider having an abortion. In the end everyone takes their own decision and they fit it to what they feel is best for their lives. Many people may see an abortion as killing an innocent life but people make their own decisions and no one can stop them. Abortions are a solution to unprepared individuals that can not handle the responsibility of having a child; why not use the cells from the procedure to save a life. Children are wonderful gifts but some people are just not ready to take up the responsibility of raising that gift so they can use that gift to help another needy life.

Stem cells are cells that are found throughout the human body. They reproduce over a long period of time without changing. Stem cells can produce specialized cells, such as brain, muscle or lung cells. Stem cells in the last few years have recently made a big debut because medical professionals have discovered so many unique qualities to stem cells. They are on the cutting edge of medicine because of all their uses and the qualities that make them so unique from any other cell in the body. Stem cells have the power to make so many breakthroughs in the medical world. Medical researchers have all ready found so many ways that stem cells can be used for the better of so many people. Genes play an important role in determining what genetic traits or mutations we receive. Researching stem cells can help determine this. Stem cell research is useful for learning many things about human development and about how the body has the power to repair itself. Researchers are finding new ways each day that stem cells can be used and the possibilities that they find for stem cells could be endless. A few ways they can be used to treat diseases, be used as graphs for burn victims or surgical use, and even to correct birth defects. The pros of stem cells are limitless.

Over time, the use of human stem cells has proven to be monumental in research, particularly in the field of disease modeling and drug development for treatments of diseases. However, there are many barriers that come with using human stem cells, specifically embryonic stem cells (ESCs), mainly due to the fact that they must come from either

Imagine a child, no more than six years old, with a failing liver. There is no way for that child to receive a functional liver because of the waiting list for organs. That child will almost certainly die waiting for that liver, and never get close to the top of the list. The main reason for this is quite simple: there are not nearly enough organs available for transplant to save the people that need them. Because the research of stem cells isn’t developed or funded well enough for functional organs to be made, many people will die waiting for the organs. But, if funding and support was provided, lives would be saved instead of lost. Stem cells should be used in more clinical

Many scientists believe that embryonic stem cell (ESC) research is the key to curing diseases such as cancer and HIV. Stem cells are so important to biomedical research because they are primitive cells that are capable of replicating indefinitely producing a multitude of different types of cells. This means that one of these pre-determined cells has to potential of becoming any range of over two hundred tissues with epithelial cells to blood and

As technology advances, the use of embryonic stem cell research has also expanded. Stem cells have shown promise in personalized medicine as they are undifferentiated and easily conform with the surrounding cells. There are two areas of research that stem cells are showing massive potential, cell regeneration and organ transplantation. It is thought that stem cells have the capability to “model genetic disorders in a reliable fashion such that no other method allows. It seems likely that we could use stem cells to model cells with genetic disorders and figure out how to mute certain genes, thus eliminating or drastically reducing the effects of the disease,” (1). Although embryonic stem cells (ESC) are showing great potential towards medical advancements, there are many people who are opposed to the idea of using these cells due to the aggressive nature in which we extract ESC.

Stem Cell Research: Should we continue to allow scientists to create new embryonic stem cell lines?

Stem cells are cells with the potential to become any type of cell in the body. There are two different types of stem cells: adult stem cells and embryonic stem cells. Adult stem cells are very valuable and are used mainly to treat blood diseases, but sometimes adult stem cells from the brain are used to treat neurological diseases. Adult stem cells can also be difficult to recognize in the adult body. Embryonic stem cells are more flexible than adult stem cells and can be used for a bigger variety of diseases (California’s Stem Cell Agency,2011). Some people do not believe in the use of embryonic stem cells, because they believe they are killing future life. Despite the controversy over how stem cells are gathered, stem cells have undeniable

The process when stem cells give rise to blood cells, or any other specialized cells, is called differentiation (“Stem Cell Basics”). Stem Cells’ ability of differentiation can be targeted and directed to generate tissue and therefore to cure degenerative diseases (Panno 24-28). However, such medical promise faces the doubts and gives rise to disputes. In fact, federal funds for stem cell research were banned under President Bush’s administration, but the ban was then lifted by President Obama’s administration (Obama). Despite the different arguments, more medical trials should be conducted with embryonic stem cells in order to determine whether the medical promise is applicable or far-fetched.

The phrase “stem cell” calls to mind images of controversy: Pro-life picketers outside abortion and in-vitro fertilization clinics, patients with chronic disabilities waiting on a cure, scientists in a lab experimenting with a petri dish. These cells offer unimaginable opportunities for regenerative medicine because they can retain the ability to differentiate. Stem cells are classified as either adult or embryonic. Embryonic stem cells can

Skin with its hair follicle is an excellent system to study molecular mechanism of stem cell regulation. Due to constant need of tissue regeneration, it has abundant number of stem cells. Hair follicle consist of a permanent portion- sebaceous gland and below it is a bulge area, which houses- Hair follicle epidermal stem cells(HFSCs). Bulge also provides niche for melanocyte stem cells interspersed between HFSCs. Behavior of the two stem cells is well coordinated. Differentiating melanocytes transfer pigment to terminally differentiated hair follicles (Nishimura et al., 2002; Tanimura et al., 2011; Rabbani et al., 2011).Hair follicle undergoes cyclical bouts of 3 phases-anagen (phase of active growth), catagen (destruction phase) and telogen (rest phase) (Hardy, 1992). HFSCs give rise to daughter stem cells which are retained in the bulge area and others form, either epidermal progenitors which migrate upwards during tissue repair or it forms hair-matrix progenitors which migrate below to form hair shaft (Niemann & Watt 2002; Oshima et al., 2001; Taylor et al. 2000).