Abstract

In August 2017, researchers at the Oregon Health and Science University announced that they had successfully used a gene editing technique known as CRISPR-Cas9 to repair disease-causing genes in human embryos. Some members of the scientific and medical communities have hailed the development as a way to ensure that life- threatening diseases are not passed on to future generations. But is gene editing always a good thing? The Catholic Church encourages scientific research that is ethical and serves the human good. In the future, CRISPR may be used to treat people with serious genetic diseases, such as hemophilia and sickle-cell anemia. However, for research on human beings to be ethical, it must be strictly therapeutic and must respect the dignity and sacredness of human life. Gene-editing techniques raise profound ethical challenges in both respects.