In November of 1998, scientists reported that they had successfully isolated and cultured human embryonic stem cellsa feat which had eluded researchers for almost two decades. This announcement kicked off an intense and unrelenting debate between those who approve of embryonic stem cell research and those who are opposed to it. Some of the most prominent advocates of the research are scientists and patients who believe that embryonic stem cell research will lead to the development of treatments and cures for some of humanitys most pernicious afflictions (such as Alzheimers disease, Parkinsons disease, heart disease, and diabetes). Among the most vocal opponents of the research are those who share the desire to heal, but who object to the pursuit of healing via unethical means. CBHDs view is that because human embryonic stem cell research necessitates the destruction of human embryos, such research is unethicalregardless of its alleged benefits. Ethical alternatives for achieving those benefits should be actively pursued, and have demonstrated a number of promising preclinical and clincial results without the ethical concers present with embryonic stem cells.
Human embryonic stem cells are the cells from which all 200+ kinds of tissue in the human body originate. Typically, they are derived from human embryosoften 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 embryos.
Adult stem cells (also referred to as non-embryonic stem cells) are present in adults, children, infants, placentas, umbilical cords, and cadavers. Obtaining stem cells from these sources does not result in certain harm to a human being.
Fetal stem cell research may ethically resemble either adult or embryonic stem cell research and must be evaluated accordingly. If fetal stem cells are obtained from miscarried or stillborn fetuses, or if it is possible to remove them from fetuses still alive in the womb without harming the fetuses, then no harm is done to the donor and such fetal stem cell research is ethical. However, if the abortion of fetuses is the means by which fetal stem cells are obtained, then an unethical means (the killing of human beings) is involved. Since umbilical cords are detached from infants at birth, umbilical cord blood is an ethical source of stem cells.
Yes. In contrast to research on embryonic stem cells, non-embryonic stem cell research has already resulted in numerous instances of actual clinical benefit to patients. For example, patients suffering from a whole host of afflictionsincluding (but not limited to) Parkinsons disease, autoimmune diseases, stroke, anemia, cancer, immunodeficiency, corneal damage, blood and liver diseases, heart attack, and diabeteshave experienced improved function following administration of therapies derived from adult or umbilical cord blood stem cells. The long-held belief that non-embryonic stem cells are less able to differentiate into multiple cell types or be sustained in the laboratory over an extended period of timerendering them less medically-promising than embryonic stem cellshas been repeatedly challenged by experimental results that have suggested otherwise. (For updates on experimental results, access http://www.stemcellresearch.org.)
Though embryonic stem cells have been purported as holding great medical promise, reports of actual clinical success have been few. Instead, scientists conducting research on embryonic stem cells have encountered significant obstaclesincluding tumor formation, unstable gene expression, and an inability to stimulate the cells to form the desired type of tissue. It may indeed be telling that some biotechnology companies have chosen not to invest financially in embryonic stem cell research and some scientists have elected to focus their research exclusively on non-embryonic stem cell research.
Another potential obstacle encountered by researchers engaging in embryonic stem cell research is the possibility that embryonic stem cells would not be immunologically compatible with patients and would therefore be rejected, much like a non-compatible kidney would be rejected. A proposed solution to this problem is to create an embryonic clone of a patient and subsequently destroy the clone in order to harvest his or her stem cells. Cloning for this purpose has been termed therapeutic cloningdespite the fact that the subject of the researchthe cloneis not healed but killed.
Underlying the passages of Scripture that refer to the unborn (Job 31:15; Ps. 139:13-16; Lk. 1:35-45) is the assumption that they are human beings who are created, known, and uniquely valued by God. Genesis 9:6 warns us against killing our fellow human beings, who are created in the very image of God (Gen. 1:26-27). Furthermore, human embryonic lifeas well as all of creationexists primarily for Gods own pleasure and purpose, not ours (Col. 1:16).
Many proponents of human embryonic stem cell research argue that it is actually wrong to protect the lives of a few unborn human beings if doing so will delay treatment for a much larger number of people who suffer from fatal or debilitating diseases. However, we are not free to pursue gain (financial, health-related, or otherwise) through immoral or unethical means such as the taking of innocent life (Deut. 27:25). The history of medical experimentation is filled with horrific examples of evil done in the name of science. We must not sacrifice one class of human beings (the embryonic) to benefit another (those suffering from serious illness). Scripture resoundingly rejects the temptation to do evil that good may result (Rom. 3:8).
No forms of stem cell research or cloning are prohibited by federal law, though some states have passed partial bans. Private funds can support any practice that is legal, whereas federal funds cannot be used for research on embryonic stem cell lines unless they meet the guidelines set forth by the National Institutes of Health in July 2009. For the latest developments you can stay informed via CBHD's newsblogwww.bioethics.com and thecoalition site http://www.stemcellresearch.org.
Editor's Note: This piece was originally published by Linda K. Bevington, MA, by CBHD in April 2005 under the title "Stem Cell Research and 'Therapeutic' Cloning: A Christian Analysis." The piece was subsequently revised and updated by CBHD research staff in August 2009.
Posted 4/2005, Updated 8/2009
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