• this approach has been championed as an answer to the many issues concerning embryonic stem cells (ESCs) and the destruction of viable embryos for medical use, though questions remain on how homologous the two cell types truly are. (wikipedia.org)
  • The blastocyst stage is developed by the egg to help create embryonic stem cells from the inner cell mass of the blastocyst. (wikipedia.org)
  • Embryonic stem cells are undifferentiated cells of an embryo. (wikipedia.org)
  • In the United States, scientists at the Harvard Stem Cell Institute, the University of California San Francisco, the Oregon Health & Science University, Stemagen (La Jolla, CA) and possibly Advanced Cell Technology are currently researching a technique to use somatic cell nuclear transfer to produce embryonic stem cells. (wikipedia.org)
  • XI - embryonic stem cells: embryonic cells that are capable of modifying the cells of any organism tissue. (hinxtongroup.org)
  • Long before the controversy emerged over human embryonic stem cells, scientists and doctors began using first-generation stem cells from adult bone marrow. (eppc.org)
  • Already, non-embryonic stem cells are being used to treat a variety of diseases-most notably certain cancers of the blood. (eppc.org)
  • Adult stem cells are easier to control than embryonic stem cells and thus less likely to form tumors. (eppc.org)
  • Before leaving office, President Clinton sought to get around the existing law without actually changing it, by funding research on embryonic stem cells so long as the actual embryo destruction was paid for with private dollars. (eppc.org)
  • if you have a choice of starting material and are forced to use embryonic stem cells to carry out the invention, ensure you describe the use of embryonic stem cells from morally acceptable sources in your patent application. (schlich.co.uk)
  • It is used in both therapeutic and reproductive cloning. (wikipedia.org)
  • In 1996, Dolly the sheep became famous for being the first successful case of the reproductive cloning of a mammal. (wikipedia.org)
  • Stem cells can then be obtained by the destruction of this clone embryo for use in therapeutic cloning or in the case of reproductive cloning the clone embryo is implanted into a host mother for further development and brought to term. (wikipedia.org)
  • … "human clone" means an embryo that, as a result of the manipulation of human reproductive material or an in vitro embryo, contains a diploid set of chromosomes obtained from a single - living or deceased - human being, fetus, or embryo. (hinxtongroup.org)
  • Cloning technology, however, is perceived as having the potential for reproductive cloning, which raises serious ethical and moral concerns. (who.int)
  • Reproductive cloning versus germ cell (egg, ovum). (who.int)
  • Finally, and inexorably, a true professional scientist poses clearly challenging questions to his research colleagues, and to the scientific enterprise in general, about the dubious "scientific" justification for the current rush to clone human beings - for both "therapeutic" and for "reproductive" purposes. (lifeissues.net)
  • Agreeing with the premise of an earlier article in the same journal, he agrees that we "must not let our debate get completely derailed by vested interests, whether politically or economically motivated", and that the failure to find global agreement on human cloning at the U.N. could result in "reproductive" human cloning [and all the abuses of women that would entail]. (lifeissues.net)
  • But we can only wonder about the ethical propriety of producing the first human child with this technique, knowing that the hoped-for newborn would be a reproductive experiment, one that may end initially in numerous fetal failures. (eppc.org)
  • Reproductive Cloning - Use of a donor cell to create a new human genetically identical to the donor. (schlich.co.uk)
  • Therapeutic cloning possesses enormous potential for revolutionizing medical and thera- peutic techniques. (who.int)
  • This is therapeutic cloning. (who.int)
  • This cell then has therapeutic cloning: the global the capacity to divide and grow into an exact replica of the original from whom the debate somatic cell was taken. (who.int)
  • But he is equally concerned about the unethical aspects inherent in the rush to perform " therapeutic " human cloning research, including the abuses to all vulnerable human patients who would be required to participate in clinical trials. (lifeissues.net)
  • But adult stem cells also raise some interesting ethical dilemmas alongside their great therapeutic promise. (eppc.org)
  • Therapeutic Cloning - Use of a donor cell to create pluripotent stem cells suitable for growing tissues for implantation into the donor or other patient. (schlich.co.uk)
  • These cells are deemed to have a pluripotent potential because they have the ability to give rise to all of the tissues found in an adult organism. (wikipedia.org)
  • Another application of SCNT stem cell research is using the patient specific stem cell lines to generate tissues or even organs for transplant into the specific patient. (wikipedia.org)
  • The stem cells suits human needs, does not cause harm and can be obtained from both adult and fetal does not conflict with religious beliefs, it has tissues, umbilical cord and early embryos. (who.int)
  • Today, we can derive stem cells from a range of adult and newborn tissues: liver cells, kidney cells, brain cells, fat cells, and umbilical cord blood. (eppc.org)
  • Mechanochemical Principles of Spatial and Temporal Patterns in Cells and Tissues. (mpi-cbg.de)
  • Patterns are ubiquitous in living systems and underlie the dynamic organization of cells, tissues, and embryos. (mpi-cbg.de)
  • Stem cell technologies promise to be the next transformative medical technology offering therapies for conditions and diseases that are currently beyond medical science by creating replacement or supplementary tissues for a patient. (schlich.co.uk)
  • reagents made using a patient's own cells used to regenerate disease or damaged tissues 14,15 , once the stuff of science fiction, may become science fact. (schlich.co.uk)
  • The aim of carrying out this procedure is to obtain pluripotent cells from a cloned embryo. (wikipedia.org)
  • This gives them the ability to create patient specific pluripotent cells, which could then be used in therapies or disease research. (wikipedia.org)
  • Controversy surrounds human ESC work due to the destruction of viable human embryos, leading scientists to seek alternative methods of obtaining pluripotent stem cells, SCNT is one such method. (wikipedia.org)
  • In addition, the possibility of reprogramming adult stem cells back to a "pluripotent" (or embryonic-like) state raises the biological prospect of going back too far. (eppc.org)
  • The genetic material of the donor egg cell is removed and discarded, leaving it 'deprogrammed. (wikipedia.org)
  • Research advocates attack President Bush for "banning stem cell research," while pro-life advocates lament a Republican administration and Congress that have banned nothing-not embryo destruction, not human cloning, not fetal farming, not genetic engineering. (eppc.org)
  • In Enhancing Evolution, leading bioethicist John Harris dismantles objections to genetic engineering, stem-cell research, designer babies, and cloning and makes an ethical case for biotechnology that is both forthright and rigorous. (philpapers.org)
  • Human enhancement, Harris argues, is a good thing--good morally, good for individuals, good as social policy, and good for a genetic heritage that needs serious improvement. (philpapers.org)
  • In addition to these basic issues concerning leukemia pathogenesis, we are devising new diagnostic procedures for detecting and monitoring leukemia patients based on molecular genetic abnormalities in the malignant cells. (stanford.edu)
  • Ethically, since eventually all such "research" will be applied to people, he cautions against the abuse of women "egg" donors, and against the premature use of vulnerable sick human patients for testing supposedly "patient-specific" stem cells in supposed "therapies", pointing to the obvious violations of standard international research ethics guidelines such clinical trials would necessarily entail. (lifeissues.net)
  • The holy grail of regenerative medicine-whatever one's ethical beliefs about destroying embryos-is to "reprogram" regular cells from one's own body so that individuals can be the source of their own rejection-proof therapies. (eppc.org)
  • We now see a patent landscape where stem cell technologies and related therapies can, with very few exceptions, be protected via patents, provided the appropriate form of claim wording is used. (schlich.co.uk)
  • Development will ensue normally and after many mitotic divisions, the single cell forms a blastocyst (an early stage embryo with about 100 cells) with an identical genome to the original organism (i.e. a clone). (wikipedia.org)
  • In this regard, emerging technologies of chimeric human organ production via blastocyst complementation (BC) holds great promise. (frontiersin.org)
  • To overcome this significant crisis, researchers are investigating various approaches involving direct xenotransplantation, organoids, decellularization, and recellularization, and more recently, organ bioengineering using blastocyst complementation (BC). (frontiersin.org)
  • These are then fused by inserting the somatic cell into the 'empty' ovum. (wikipedia.org)
  • In genetics and developmental biology, somatic cell nuclear transfer (SCNT) is a laboratory strategy for creating a viable embryo from a body cell and an egg cell. (wikipedia.org)
  • Somatic cell nuclear transfer is a technique for cloning in which the nucleus of a somatic cell is transferred to the cytoplasm of an enucleated egg. (wikipedia.org)
  • After the somatic cell transfers, the cytoplasmic factors affect the nucleus to become a zygote. (wikipedia.org)
  • The process of somatic cell nuclear transfer involves two different cells. (wikipedia.org)
  • The second being a somatic cell, referring to the cells of the human body. (wikipedia.org)
  • What is left is a somatic cell and an enucleated egg cell. (wikipedia.org)
  • After being inserted into the egg, the somatic cell nucleus is reprogrammed by its host egg cell. (wikipedia.org)
  • Somatic cell nuclear transplantation has become a focus of study in stem cell research. (wikipedia.org)
  • The resulting cells would be genetically identical to the somatic cell donor, thus avoiding any complications from immune system rejection. (wikipedia.org)
  • The recent desperation to clone human embryos may be seriously undermining accepted ethical principles of medical research, with potentially profound wider consequences. (lifeissues.net)
  • That is to say, we risk turning developed cells into developing embryos, and thus risk engaging in the very activities of embryo destruction and human cloning that we seek to avoid. (eppc.org)
  • Since 1995, Congress has annually reauthorized a law-called the "Dickey Amendment"-prohibiting federal funding for research "in which" embryos are destroyed while leaving embryo destruction in the private sector entirely unregulated. (eppc.org)
  • However, though BC is emerging as a potential organ transplant option, challenges regarding organ size scalability, immune system incompatibilities, long-term maintenance, potential evolutionary distance, or unveiled mechanisms between donor and host cells remain. (frontiersin.org)
  • These cells genetically matched the donor organism from which they came. (wikipedia.org)
  • … "embryo" means a human organism during the first 56 days of its development following fertilization or creation, excluding any time during which its development has been suspended, and includes any cell derived from such an organism that is used for the purpose of creating a human being. (hinxtongroup.org)
  • On the other hand, a chimera is defined as an organism in which cells from two or more different organisms have contributed. (frontiersin.org)
  • Stem cell technologies have been dogged by controversy because of objections over the morality of sacrificing human embryos to produce the first human embryonic stem cell lines. (schlich.co.uk)
  • The technique consists of taking an denucleated oocyte (egg cell) and implanting a donor nucleus from a somatic (body) cell. (wikipedia.org)
  • Over the past few years, the debate over stem cells and cloning has grown both more complex and more profound. (eppc.org)
  • Unicellular for those cells that are derived from human organisms are primed to replicate (clone) pre-embryos, which seem to have a high themselves by nature. (who.int)
  • To take human organ generation via BC and transplantation to the next step, we reviewed current emerging organ generation technologies and the associated efficiency of chimera formation in human cells from the standpoint of developmental biology. (frontiersin.org)
  • Our research focuses on developmental pathways that regulate hematopoietic cell growth and differentiation and are disrupted in the course of neoplastic transformation, particularly in leukemias and lymphomas. (stanford.edu)
  • And recent experimental trials, while still very preliminary, suggest that adult stem cells may one day help us treat a host of terrible pathologies. (eppc.org)
  • Yet for now, the utility of adult stem cells also remains limited. (eppc.org)
  • In July 2005, for example, scientists announced that they had engineered adult mouse stem cells into usable mouse eggs, a technique that might one day allow for the creation of human eggs from ordinary human cells. (eppc.org)
  • These moral perils are surely not a reason to oppose adult stem cell research, which deserves vigorous and expanded public support. (eppc.org)
  • When the nucleus of a stem cell has been the technique of cloning. (who.int)
  • The con- is removed and replaced by a nucleus of cept of human cloning has long been in the another cell type, the stem cell will then imagination of many scientists, scholars and be reprogrammed to produce the product fiction writers [ 1 ]. (who.int)
  • The basic techniques of of the implanted nucleus, when it fully cloning have been known for some time, and develops. (who.int)
  • And he also agrees that if we don't find global agreement on human cloning, "we can probably expect dire consequences for the future of biomedical research and its impact on society at large. (lifeissues.net)
  • Automatic detection and segmentation of biological objects in 2D and 3D image data is central for countless biomedical research questions to be answered. (mpi-cbg.de)
  • In January 2018, a team of scientists in Shanghai announced the successful cloning of two female crab-eating macaques (named Zhong Zhong and Hua Hua) from foetal nuclei. (wikipedia.org)
  • But they are also less equipped to produce every cell type of the body and less able to reproduce themselves indefinitely, which makes them less appealing to scientists interested in basic research. (eppc.org)
  • Skin cells, fat cells, and liver cells are only a few examples. (wikipedia.org)
  • A potential use of stem cells genetically matched to a patient would be to create cell lines that have genes linked to a patient's particular disease. (wikipedia.org)
  • This paper outlines the debates prompted through a reproduction mechanism involv- by progress in cloning research, with special ing male and female germ cells. (who.int)
  • This mechanism also applies to hematopoietic cells transformed by other HOX genes, including CDX2, which is highly expressed in a majority of acute myeloid leukemias, thus providing a molecular approach based on GSK-3 inhibitory strategies to target HOX-associated transcription in a broad spectrum of leukemias. (stanford.edu)
  • One of the greatest controversies triggered tissue, a stem cell encoding for heart tissue by the rapid pace of evolution in biology, will eventually develop into heart tissue particularly in genomics and biotechnology, and so on. (who.int)
  • We are studying the role that normal chromatin structure plays in gene regulation in hematopoietic cells and how its disruption leads to altered development and cancer. (stanford.edu)
  • This ability allows stem cells to create any cell type, which could then be transplanted to replace damaged or destroyed cells. (wikipedia.org)
  • Last May, the House of Representatives passed a bill to create a cord blood stem cell bank, legislation that is likely to become law with virtually unanimous support. (eppc.org)
  • Stem cells offer the prospect of treatments for diseases and injuries that are currently beyond medical science. (schlich.co.uk)
  • For example, if a person with Parkinson's disease donated their somatic cells, the stem cells resulting from SCNT would have genes that contribute to Parkinson's disease. (wikipedia.org)
  • In human SCNT experiments, these eggs are obtained through consenting donors, utilizing ovarian stimulation. (wikipedia.org)
  • In this review, we summarize the history of interspecies chimerism in various animal models to find hints for BC application and describe the challenges and prospects of utilizing BC for human organ generation. (frontiersin.org)
  • In ancient history, humans used the term "chimera" to describe mythical creatures and hybrids. (frontiersin.org)
  • And if they don't know them, then even the international research ethics guidelines would preclude them from performing such research. (lifeissues.net)
  • In a new preface, Harris offers a glimpse at the new science and technology to come, equipping readers with the knowledge to assess the ethics and policy dimensions of future forms of human enhancement. (philpapers.org)
  • Stem cells may underpin the next generation of pharmaceuticals, with even greater promise for successful treatment of diseases that are intractable or scarcely treatable now. (schlich.co.uk)
  • However, it appears that the ability of the In its simplest form, cloning is defined stem cells to transform is limited, except as the exact replication of cells. (who.int)
  • The disease specific stem cell lines could then be studied in order to better understand the condition. (wikipedia.org)
  • But if we are to make wise policy the stem cell/cloning arena, we need to step back, sort out the various scientific alternatives and moral issues, and search for a way forward that all citizens can embrace. (eppc.org)
  • As he has questioned the HFEA before, would not the use of vulnerable human patients in clinical trials be premature, dangerous, and unethical given the already acquired knowledge in the research community that such supposed "patient-specific" stem cells would most probably cause serious immune rejection reactions in these patients? (lifeissues.net)
  • In particular the European Patent Office, United States Patent and Trademark Office, Japan Patent Office and State Intellectual Property Office of China have published guidelines covering patenting of stem cell technologies in the light of recent decisions. (schlich.co.uk)
  • The greater legal certainty provided by recent court cases means that patent rights, and the investment they attract, can be secured for human embryonic stem-cell based technologies. (schlich.co.uk)
  • This paper identifies human enhancement as one of the most significant areas of bioethical interest in the last twenty years. (philpapers.org)
  • II - from embryos that have been frozen for 3 (three) years or more, as of the date of publication of this Law, or that were frozen at the date of publication of this Law, after 3 (three) year period has lapsed, as of the date when it was actually frozen. (hinxtongroup.org)
  • For performing human cloning: Punishment by confinement from 2 (two) to 5 (five) years and fine. (hinxtongroup.org)