The Latest Thorn by Any Other Name: Germ-Line Nuclear Transfer in the Name of "Mitochondrial Replacement"

Mitochondrial Replacement Therapy: An Islamic Perspective

Mitochondrial replacement technology (MRT) is an emerging and complex bioethical issue. This treatment aims to eliminate maternal inherited mitochondrial DNA (mtDNA) disorders. For Muslims, its introduction affects every aspect of human life, especially the five essential interests of human beings-namely, religion, life, lineage, intellect, and property. Thus, this technology must be assessed using a comprehensive and holistic approach addressing these human essential interests. Consequently, this article analyses and assesses tri-parent baby technology from the perspective of Maqasidic bioethics-that is, Islamic bioethics based on the framework of Maqasid al-Shariah. Using this analysis, this article suggests that tri-parent baby technology should not be permitted for Muslims due to the existence of third-party cell gametes which lead to lineage mixing and due to the uncertain safety of the therapy itself and because the major aim of the technology is to fulfil the affected couples interest to conceive their own genetically healthy child, not to treat and cure mtDNA disorders sufferers.

A brief and personal history of 'what's in a name' in reproductive genetics

Although Juliet's claim, 'What's in a name? That which we call a rose by any other name would smell as sweet', may apply to family names, 'that which we call' embryos and procedures in reproductive genetics often smell sweet because the names were created to perfume not-so-sweet-smelling practices. Reproductive-genetic scientists and clinicians, including myself, have used perfumed names to make our research smell sweet for research ethics boards, research grant funders, government regulators, hospital administrators and the general public. The sweet-smelling names in reproductive genetics explored here include 'pre-embryo', preimplantation genetic 'diagnosis', 'normal' embryo, 'suitable' embryo, 'healthy' embryo, preimplantation genetic 'testing', 'non-invasive prenatal testing', 'donation', and most recently 'mitochondrial replacement therapy', a sweet-smelling name for germline nuclear transfer prohibited in antireproductive cloning legislation in most countries. In order for informed choices to occur for women who come to clinicians for information regarding reproductive genetics, and for transparency of scrutiny by research ethics boards, governmental regulators and the general public, it is essential that we consider the real meaning of sweet-smelling names in reproductive genetics.

Tri-parent Baby Technology and Preservation of Lineage: An Analysis from the Perspective of Maqasid al-Shari'ah Based Islamic Bioethics

Tri-parent baby technology is an assisted reproductive treatment which aims to minimize or eliminate maternal inheritance of mutated mitochondrial DNA (mtDNA). The technology became popular following the move by the United Kingdom in granting license to a group of researchers from the Newcastle Fertility Centre, Newcastle University to conduct research on the symptoms of defective mtDNA. This technology differs from other assisted reproductive technology because it involves the use of gamete components retrieved from three different individuals. Indirectly, it affects the preservation of lineage which is important from an Islamic point of view. This paper aims to analyze and discuss the implications of the tri-parent technology on preservation of lineage from the perspective of Maqasid al-Shari'ah based the Islamic bioethics. The analysis shows that there are a few violations of the preservation of lineage, hence the tri-parent baby technology should not be permitted.

Germline Modification and Policymaking: The Relationship between Mitochondrial Replacement and Gene Editing

'Mitochondrial replacement' and 'germline gene editing' are relatively new techniques that represent a significant moral, technological, and legal threshold, as they would introduce permanent and heritable changes to the human gene pool. This article examines the close relationship between these two technologies over time, considering what regulatory lessons can be learned from the former as attention turns to the latter. It argues that the UK's 'mitochondrial replacement' approval process should not be taken as a model for the wider regulation of germline gene editing, and that policy-making needs to contend with a comprehensive picture of the social and political meaning of these technologies in the world.

Mitochondrial Modification Techniques and Ethical Issues

Current strategies for preventing the transmission of mitochondrial disease to offspring include techniques known as mitochondrial replacement and mitochondrial gene editing. This technology has already been applied in humans on several occasions, and the first baby with donor mitochondria has already been born. However, these techniques raise several ethical concerns, among which is the fact that they entail genetic modification of the germline, as well as presenting safety problems in relation to a possible mismatch between the nuclear and mitochondrial DNA, maternal mitochondrial DNA carryover, and the "reversion" phenomenon. In this essay, we discuss these questions, highlighting the advantages of some techniques over others from an ethical point of view, and we conclude that none of these are ready to be safely applied in humans.

"Mitochondrial Replacement" Technologies and Human Germline Nuclear Modification

In 2015 the United Kingdom became the first jurisdiction to approve "mitochondrial replacement techniques" (MRT), thereby dropping prohibitions against creating human embryos with a permanently altered genetic make-up for purposes of reproduction. MRT is a misnomer because in fact it is the nucleus of the oocyte of the woman who wants a genetically related child that is transferred to the enucleated oocyte of a woman paid to undergo IVF to provide the oocyte. MRT thus constitutes nuclear transfer, which is prohibited by criminal sanctions under sections of laws on reproductive cloning in Canada, the United States, Australia, and European countries that regulate assisted reproduction. By adopting policies permitting the use of MRT, the United Kingdom has become the first jurisdiction to counteract an international consensus prohibiting germline modification. Analyses of the legal, ethical, and societal implications of MRT in assisted human reproduction are essential.