What are human embryonic stem cells?
FAQs [Stem Cell Information]Stem cells are cells that have the remarkable potential to develop into many different cell types in the body. Serving as a sort of repair system for the body, they can theoretically divide without limit to replenish other cells for as long as the person or animal is still alive. When a stem cell divides, each "daughter" cell has the potential to either remain a stem cell or become another type of cell with a more specialized function, such as a muscle cell, a red blood cell, or a brain cell.
Related QuestionsWhy not use adult stem cells instead of using human embryonic stem cells in research?
FAQs [Stem Cell Information]Human embryonic stem cells are thought to have much greater developmental potential than adult stem cells. This means that embryonic stem cells may be pluripotent—that is, able to give rise to cells found in all tissues of the embryo except for germ cells rather than being merely multipotent—restricted to specific subpopulations of cell types, as adult stem cells are thought to be.
Related QuestionsHow are embryonic stem cells obtained for research?
Frequently Asked QuestionsEmbryonic stem cells are obtained from excess embryos created as a result of in vitro fertilization treatments. The embryos are donated with the informed, written consent of patients who are no longer receiving treatment and who do not wish to keep the embryos.
Related QuestionsWhat are human embryonic stem cells and how are they obtained?
Science and Technology Ethics DiscussionsHuman embryonic stem cells are the cells from which all 200+ kinds of tissue in the human body originate. They are typically derived from human embryos -- often those from fertility clinics who are left over from assisted reproduction attempts (e.g. in vitro fertilization). When stem cells are obtained from living human embryos, the harvesting of such cells necessitates destruction of the embryo.
Related QuestionsWhat are embryonic stem cells?
NYAMR: FAQEmbryonic stem cells are undifferentiated, meaning that they don't belong to one specific organ. They have the potential to generate any type of tissue in the body. The potential that embryonic stem cells present to scientists is immeasurable. There have already been promising findings in the field of Parkinson's research using embryonic stem cells in mice and monkeys.
Related QuestionsWhere do embryonic stem cells come from?
NYAMR: FAQEmbryonic stem cells are derived at a very early stage of development called a blastocyst. This is a simple ball of about 100 cells that is similar in all species of animals at this stage of development. Embryonic stem cells are derived from the cells in the center of this blastocyst. Blastocysts are obtained from in vitro fertilization clinics. These clinics have produced an estimated 500,000 healthy, much-loved children over the two decades of their existence.
Related QuestionsHow are embryonic stem cells obtained?
News ReleasesThey are obtained from embryos created through in vitro fertilization, and only from embryos left over following completion of the donor couple’s family. This means that these embryos were fertilized in an in vitro fertilization clinic and donated for research purposes rather than being discarded.
Related QuestionsWhat makes embryonic stem cells different from other stem cells?
Graduate School of Biomedical Sciences | Stem Cell Research ...Embryonic stem cells are different from other types of stem cells in that their main function is to make all of the different tissues of the body. Most other stem cells, such as the above-mentioned hematopoietic stem cell, function in the body to make at least cells of one tissue. All stem cells are termed pluripotent, meaning one stem cell could form multiples types of cells.
Related QuestionsWhat type of research on human embryonic stem cells (HESC) can be done with Federal funding?
UCSF Stem Cell Research - Frequently Asked QuestionsResearch on existing human embryonic stem cell lines may be conducted with Federal support if the cell lines meet the US President’s criteria, which he announced on August 9, 2001 . All such human stem cell lines are on the NIH Human Embryonic Stem Cell Registry.
Related QuestionsWhat is the relationship between the embryo and embryonic stem cells?
Graduate School of Biomedical Sciences | Stem Cell Research ...The embryo is formed in early stages of fetal development and contains the embryonic stem cell. During development, the embryonic stem cells begin the process of forming tissues that will eventually compose the organs of the fetus. Embryonic stem cells give rise to all of the tissues of the embryo, excluding the placenta. Gilbert DM, Med Sci Monit 2004;10:RA99; Rossant J, Stem Cells 2001;19:477; Nature 2001;414:122-8; Yamazaki Y et al.
Related QuestionsAre umbilical cord blood cells the same as embryonic stem cells?
Cord Blood Donation: Frequently Asked QuestionsNo, umbilical cord blood cells are taken from the baby's umbilical cord and placenta after the baby is born, and not from an embryo.
Related QuestionsWhere can I find information about patents obtained for stem cells?
FAQs [Stem Cell Information]The U.S. Patent and Trademark Office offers a full-text search of issued patents and published applications. Try searching for "stem cell" or "stem cells."
Related QuestionsWhy not use adult stem cells for research and stay away from the whole embryonic stem cell issue?
Graduate School of Biomedical Sciences | Stem Cell Research ...Although there are many ethical and scientific issues with embryonic stem cells, these cells have the greatest capacity to make new tissues. To date, adult stem cells have not been shown to give rise to the variety of tissues that embryonic stem cells potentially can. Additionally, under certain conditions, embryonic stem cells can form cancerous cells. For this reason, embryonic stem cells have the potential to be studied as a model of cancer development.
Related QuestionsWhat are human embryonic stem cells and stem cell research?
Common Medical and Disability Questions and AnswersStem cells are cells that have the remarkable potential to develop into many different cell types in the body. Serving as a sort of repair system for the body, they can theoretically divide without limit to replenish other cells for as long as the person or animal is still alive. When a stem cell divides, each "daughter" cell has the potential to either remain a stem cell or become another type of cell with a more specialized function, such as a muscle cell, a red blood cell, or a brain cell.
Related QuestionsHave human embryonic stem cells cured any human diseases yet?
FAQ: What's Up With Stem Cells?Not in verifiable published studies. Some researchers in other countries have claimed success, but they have not published their results in a format that most scientists will accept. Embryonic stem-cell research is in the early stages. The first embryonic stem cells were isolated only recently -- in 1998, by Dr. James Thomson and his colleagues at the University of Wisconsin. Federal funds for research on human embryonic stem cells were not available until 2001.
Related QuestionsWhy use embryonic stem cells when adult stem cells are available?
Frequently Asked QuestionsEmbryonic stem cells have some distinct advantages over adult stem cells. Foremost are their unique qualities to become any cell or tissue in the body and to reproduce indefinitely in culture. The latter suggests that limitless cells or tissues could be made available for therapy and research. No adult stem cell has these capabilities. Moreover, embryonic stem cells provide the only window we have to the earliest stages of human development.
Related QuestionsWhat is the difference between embryonic and adult stem cells?
Frequently Asked Questions | The Harvard Stem Cell InstituteSome organs contain stem cells that persist throughout adult life and contribute to the maintenance and repair of those organs. Not every organ has been shown to contain stem cells, however, and generally adult stem cells have restricted developmental potential, in that their capacity for proliferation is limited and they can give rise only to a few cell types.
Related QuestionsWhat are the key differences between embryonic and adult stem cells?
Frequently Asked QuestionsEmbryonic stem cells have two unique qualities: 1.) They are able to develop into any of the over 220 types of tissues that make up the human body. 2.) They have the ability to reproduce indefinitely in culture, which means it is possible to obtain large amounts of cells for scientific study or therapy. Adult stem cells are found in some tissues of the body. Some have shown a capacity to be "reprogrammed" to become other types of cells.
Related QuestionsHow are embryonic stem cells grown in the laboratory?
Stem Cells - Embryonic Stem Cells - WikiFAQ - Answers to Fre...Growing cells in the laboratory is known as cell culture. Human embryonic stem cells are isolated by transferring the inner cell mass into a plastic laboratory culture dish that contains a nutrient broth known as culture medium. The cells divide and spread over the surface of the dish. The inner surface of the culture dish is typically coated with mouse embryonic skin cells that have been treated so they will not divide. This coating layer of cells is called a feeder layer.
Related QuestionsWhat are the similarities and differences between embryonic and adult stem cells?
Stem Cells - Embryonic Stem Cells - WikiFAQ - Answers to Fre...Human embryonic and adult stem cells each have advantages and disadvantages regarding potential use for cell-based regenerative therapies. Of course, adult and embryonic stem cells differ in the number and type of differentiated cells types they can become. Embryonic stem cells can become all cell types of the body because they are pluripotent. Adult stem cells are generally limited to differentiating into different cell types of their tissue of origin.
Related QuestionsWhat is the "moral" objection to using embryonic stem cells?
Stem Cells - Embryonic Stem Cells - WikiFAQ - Answers to Fre...Some, including President Bush, believe that using embryonic stems cells is a complex issue that, "forces us to confront fundamental questions about the beginnings of life and the ends of science. It lies at a difficult moral intersection, juxtaposing the need to protect life in all its phases with the prospect of saving and improving life in all its stages.
Related QuestionsWhat is the source of embryonic stem cells?
Michigan Citizens for Stem Cell Research & CuresEmbryonic stem cells, as their name suggests, are derived from embryos. Specifically, embryonic stem cells are derived from embryos that develop from eggs that have been fertilized in a dish in an in vitro fertilization clinic ??" and then donated for research purposes with informed consent of the donors. They are not derived from eggs fertilized in a woman's body.
Related QuestionsThe Illinois Regenerative Medicine Institute (IRMI) : FAQHuman embryonic stem cells are thought to have much greater developmental potential than adult stem cells. This means that embryonic stem cells may be pluripotent-that is, able to give rise to cells found in all tissues of the embryo except for germ cells rather than being merely multipotent-restricted to specific subpopulations of cell types, as adult stem cells are thought to be. Individual states have the authority to pass laws to permit human embryonic stem cell research using state funds.Related Questions
How many human embryonic stem cell lines are there?
ISSCR :: Stem Cell Science : Frequently Asked QuestionsThe available number of human embryonic stem cell lines is a matter of some debate. To date, over 100 human embryonic stem cell lines have been derived worldwide. However, most of those lines are not adequately characterized yet. And only 22 cell lines are eligible for federal funding in the USA. Detailed information on those 22 cell lines can be found at the National Institutes of Health Human Stem Cell Registry at http://stemcells.nih.gov.
Related QuestionsWhy are doctors and scientists so excited about human embryonic stem cells?
The Illinois Regenerative Medicine Institute (IRMI) : FAQStem cells have potential in many different areas of health and medical research. To start with, studying stem cells will help us to understand how they transform into the dazzling array of specialized cells that make us what we are. Some of the most serious medical conditions, such as cancer and birth defects, are due to problems that occur somewhere in this process.
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