Related Experiment Video
Updated: Aug 7, 2026

11:56
Derivation of Human Embryonic Stem Cells by Immunosurgery
Published on: December 13, 2007
Ethical issues in deriving stem cells from embryos and eggs
1Guy's Assisted Conception Unit, Guy's Hospital, London, UK.
Summary
Human embryonic stem cell (ESC) research faces ethical challenges in sourcing materials and navigating scientific misconduct. This article explores the ethical considerations of ESC research using established bioethical principles.
Area of Science:
- Biomedical Ethics
- Stem Cell Biology
Background:
- Human embryonic stem cell (ESC) research has garnered significant media attention.
- The field has been impacted by scientific fraud, specifically concerning patient-specific stem cell lines created via cell nucleus replacement (CNR).
Purpose of the Study:
- To examine the ethical issues surrounding human ESC research.
- To encourage debate and discussion on the ethical implications of this research.
Main Methods:
- Analysis of ethical issues using the four principles of healthcare and medical research: autonomy, beneficence, non-maleficence, and justice.
- Question-based approach to stimulate discussion.
Main Results:
- Ethical sourcing of raw materials (eggs, sperm, embryos) is a significant challenge for human ESC research.
- The potential for developing treatments for serious diseases necessitates addressing these ethical hurdles.
Conclusions:
- Ethical considerations are paramount for the responsible advancement of human ESC research.
- Ongoing ethical debate is crucial for balancing scientific progress with moral principles.
Related Concept Videos
Embryonic Stem Cells
Embryonic stem (ES) cells were first discovered in mice in 1981 by Martin Evans. In 1998, James Thomson identified a method to isolate embryonic stem cells from humans. Human embryonic stem cells (hESCs) are obtained from 3-5 day old embryos that remain unused after an in vitro fertilization procedure.
ES cells are grown in a culture medium where they can divide indefinitely, creating ES cell lines. Under certain conditions, ES cells can differentiate, either spontaneously into a variety of...
ES cells are grown in a culture medium where they can divide indefinitely, creating ES cell lines. Under certain conditions, ES cells can differentiate, either spontaneously into a variety of...
Embryonic Stem Cells
Embryonic stem (ES) cells are undifferentiated pluripotent cells, meaning they can produce any cell type in the body. This gives them tremendous potential in science and medicine since they can generate specific cell types for use in research or to replace body cells lost due to damage or disease.
Stem Cell Culture
Stem cell research aims to find ways to use stem cells to regenerate and repair cellular damage. Over time, most adult cells undergo the wear and tear of aging and lose their ability to divide and repair themselves. Stem cells do not display a particular morphology or function. Adult stem cells, which exist as a small subset of cells in most tissues, keep dividing and can differentiate into a number of specialized cells generally formed by that tissue. These cells enable the body to renew and...
Induced Pluripotent Stem Cells
Stem cells are undifferentiated cells that divide and produce different cell types. Ordinarily, cells that have differentiated into a specific cell type are terminally differentiated; however, scientists have found a way to reprogram these mature cells so that they dedifferentiate and return to an unspecialized, proliferative state. These cells are pluripotent like embryonic stem cells—able to produce all cell types—and are called induced pluripotent stem cells (iPSCs).
Somatic cells are...
Somatic cells are...
Induced Pluripotent Stem Cells
Stem cells are undifferentiated cells that divide and produce different types of cells. Ordinarily, cells that have differentiated into a specific cell type are post-mitotic—that is, they no longer divide. However, scientists have found a way to reprogram these mature cells so that they “de-differentiate” and return to an unspecialized, proliferative state. These cells are also pluripotent like embryonic stem cells—able to produce all cell types—and are therefore called induced pluripotent stem...
Cloning of Dolly the Sheep
The first successfully cloned mammal was Dolly, a sheep, born on 5th July 1996 at Roslin Institute, Scotland. The cloned sheep was named after the American singer Dolly Parton. Dolly lived for seven years and died of respiratory complications, which is speculated to be due to the actual age of her DNA. Because the DNA in cloned cells belongs to an older individual, the cloned individual’s life expectancy may be affected. Indeed, analysis of Dolly’s DNA revealed shorter telomeres than other...

