Scientists have studied gene drives for more than 50 years. The development of a powerful genome editing tool in 2012, CRISPR/Cas9 led to recent breakthroughs in gene drive research that built on that half century’s worth of knowledge, and stimulated new discussion of the potential applications and implications of gene drive technologies. Just prior to the beginning of this study and since the committee was first convened, scientists published four proofs of concept—one in yeast, one in fruit flies, and two in different species of mosquitoes—that demonstrate the successful development gene drives in the laboratory, at least in these organisms.
Proposed applications for gene-drive modified organisms for basic research, conservation, agriculture, public health and other purposes will likely continue to expand as gene editing tools become more refined. Gene-drive modified organisms are on the horizon. The fast moving nature of this field is both encouraging and a concerning.
While gene-drive modified organisms hold promise for addressing difficult to solve, persistent challenges, such as the eradication of vector-borne diseases and the conservation of threatened and endangered species, these proposed applications are based on limited proof-of-concept studies. The presumed efficiency of gene-drive modified organisms may lead to calls for their release in perceived crisis situations, before there is adequate knowledge of their ecological effects, and before mitigation plans for unintended harmful consequences are in place.
Responding to this fast moving field, the National Institutes of Health (NIH) and the Foundation for the National Institutes of Health (FNIH) asked the National Academies of Sciences, Engineering, and Medicine to convene a committee with a broad range of expertise to summarize the scientific discoveries related to gene drives and considerations for their responsible use. Proof-of-concept in a few laboratory studies is not sufficient in and of itself to support a decision to release gene-drive modified organisms into the environment. Laboratory and field research is needed to refine CRISPR/Cas9-based gene drives and other gene drive mechanisms, and to understand how gene drives might work under different environmental conditions and in a wide variety of organisms.
The full report can be downloaded in pdf format HERE.