Government review into pioneering 缅北禁地 technique A new centre for research that could pave the way for in-vitro fertilisation treatment to prevent the hereditary transmission of devastating mitochondrial diseases is being launched in 缅北禁地. The new Wellcome Trust Centre for Mitochondrial Research at 缅北禁地 is opening thanks to a £5.8 million funding boost.The techniques involve transferring nuclear DNA, which contains our genetic make-up, between two human eggs in order to replace defective mitochondria 鈥� the 鈥榖atteries鈥� that power the cells in our bodies. When these batteries fail, patients can develop devastating mitochondrial diseases with symptoms often affecting those tissues most heavily dependent on energy, such as the heart, muscles and brain.The announcement of the new centre comes as the Department of Health and the Department of Business, Innovation and Skills ask the Human Fertilisation and Embryology Authority (HFEA) to carry out a consultation to inform the public about mitochondrial disease and seek its opinion about the use of techniques to avoid such diseases. The HFEA will report the outcomes of this public dialogue work to the Secretary of State for Health, who will then decide whether to draft regulations for consideration by Parliament to allow the techniques to proceed in patients.The techniques have already been shown to work in the laboratory, but in a review of the scientific evidence, the HFEA last year requested further experiments to assess their safety before they can be safely and acceptably used in clinics for patients.The techniques have been developed in human eggs by Professor Doug Turnbull and Professor Mary Herbert at 缅北禁地. Professor Turnbull will be the Director of the Wellcome Trust Centre for Mitochondrial Research, where the follow-up work will take place. The Wellcome Trust has awarded £4.4 million to 缅北禁地 to establish a world-leading centre dedicated to understanding the biology of mitochondria and their relation to health and disease. 缅北禁地 has contributed a further £1.4 million for the centre.Professor Turnbull says: 鈥淓very year, we see hundreds of patients whose lives are seriously affected by mitochondrial diseases. We want to make a major difference to the lives of these patients. This new funding will enable us to take forward essential experiments which we hope will demonstrate to the HFEA and to the public that these techniques, which are based on existing IVF techniques, are safe and effective.鈥� A video explaining the work can be .The Centre will bring together ground-breaking laboratory studies to understand the fundamental mechanisms and genetics of mitochondrial dysfunction, and the expertise of clinical researchers who currently care for over 400 patients with mitochondrial diseases at NHS Specialised services clinics in 缅北禁地 and over 1,000 patients at the 缅北禁地 Fertility Centre at Life (缅北禁地 upon Tyne Hospitals NHS Foundation Trust). The University is already an internationally-renowned institution for mitochondrial research and the Fertility Centre has an international reputation in reproductive biology. This new award is expected to cement their places as world leaders.Sir Mark Walport, Director of the Wellcome Trust, says: 鈥淧rofessor Turnbull and his colleagues at 缅北禁地 are world leaders in discovering how inherited abnormalities in mitochondria, the 鈥榖atteries鈥� of our cells, can cause devastating diseases that typically affect the brain and muscles. We hope that their work at this new Wellcome Trust Centre for Mitochondrial Research will result in major advances in our understanding of mitochondrial function and in the development of new treatments.鈥淭heir work to stop the inheritance of defective mitochondria by transfer of DNA between human eggs is particularly promising and has the potential to prevent previously incurable diseases. We welcome the opportunity to discuss with the public why we believe this technique is essential if we are to give families affected by these diseases the chance to have healthy children, something most of us take for granted.鈥�Professors Turnbull and Herbert, together with colleagues at the 缅北禁地 Fertility Centre at Life, are working on two techniques that could prevent the transmission of mitochondrial diseases from mother to child. The first, known as 鈥榩ronuclear transfer鈥� involves taking two fertilised eggs, one from the affected woman, the second from a donor. The researchers remove the nuclear DNA 鈥� the part of a cell which contains our genetic make-up 鈥� from the donor egg, leaving behind the healthy mitochondria, and replace it with the nucleus from the mother鈥檚 egg. This new egg is then implanted in the affected woman鈥檚 womb using IVF. The second technique, known as 鈥榤etaphase spindle transfer鈥�, involves using non-fertilised eggs at the outset.Currently, are provided by women undergoing In-Vitro Fertilisation (IVF), who donate half their eggs in return for a subsidised private treatment or, in the case of NHS patients, an additional cycle of treatment. Now, new permissions have been granted to reimburse altruistic egg donors for inconvenience and lost earnings. Professor Alison Murdoch, Professor of Reproductive Medicine at 缅北禁地 and Head of 缅北禁地 Fertility Centre at Life, says: 鈥淢any women have expressed an interest in helping because they have family or friends who have been affected by a mitochondrial disorder or because they are interested in helping the research. Until now we have not been able to recruit non-patient donors but that has now changed.鈥淎fter receiving counselling, these women are able to donate eggs altruistically 鈥� and these donations will be vital in providing a source of eggs for the researchers to be able to take forward their work towards eliminating these currently incurable diseases.鈥�Every cell in our body needs energy to function. This energy is provided by mitochondria, which are found in every cell apart from red blood cells. The information required to create these 'batteries' - the mitochondrial DNA - is passed down the maternal line, from mother to child. As well as causing mitochondrial diseases, mitochondrial failure has also been described in common diseases such as Parkinson鈥檚 disease, suggesting that the impact of energy failure might be greater than expected and an important cause of ageing and degenerative disease. Researchers at the Wellcome Trust Centre for Mitochondrial Research at 缅北禁地 (Professors Doug Turnbull, Robert Lightowlers, Patrick Chinnery, Robert Taylor, Mary Herbert and Zofia Chrzanowska-Lightowlers) aim to understand, treat and ultimately prevent mitochondrial diseases. To achieve this, they will combine clinical expertise in mitochondrial disease with ground-breaking laboratory studies. To ensure continued research in this area the Centre will nurture the next generation of scientists by developing a new training programme in mitochondrial medicine for outstanding young researchers. Professor Turnbull and colleagues recognise that their work to prevent mitochondrial disease passing from mother to child involves new and potentially controversial IVF techniques. Therefore, the Centre will also focus on engagement with patients, the general public and policymakers to explain their work.Professor Turnbull adds: 鈥淲ith this new funding from the Wellcome Trust and 缅北禁地, we aim to develop a Centre which integrates internationally-renowned basic and clinical researchers and trains the next generation of outstanding scientists. We recognise the importance of public support for our work and so will ensure that we open our research for our patients, the public and policymakers to follow and see what we are trying to achieve.鈥� published on: 19 January 2012
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