Gammage, P. A. and Minczuk, M. (2018) Enhanced manipulation of human mitochondrial DNA heteroplasmy in vitro using tunable mtZFN technology. In: Liu, J. (ed.) Zinc Finger Proteins. Series: Methods in molecular biology (1867). Humana Press: New York, pp. 43-56. ISBN 9781493987986 (doi: 10.1007/978-1-4939-8799-3_4)
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Abstract
As a platform capable of mtDNA heteroplasmy manipulation, mitochondrially targeted zinc-finger nuclease (mtZFN) technology holds significant potential for the future of mitochondrial genome engineering, in both laboratory and clinic. Recent work highlights the importance of finely controlled mtZFN levels in mitochondria, permitting far greater mtDNA heteroplasmy modification efficiencies than observed in early applications. An initial approach, differential fluorescence-activated cell sorting (dFACS), allowing selection of transfected cells expressing various levels of mtZFN, demonstrated improved heteroplasmy modification. A further, key optimization has been the use of an engineered hammerhead ribozyme as a means for dynamic regulation of mtZFN expression, which has allowed the development of a unique isogenic cellular model of mitochondrial dysfunction arising from mutations in mtDNA, known as mTUNE. Protocols detailing these transformative optimizations are described in this chapter.
| Item Type: | Book Sections |
|---|---|
| Status: | Published |
| Glasgow Author(s) Enlighten ID: | Gammage, Dr Payam |
| Authors: | Gammage, P. A., and Minczuk, M. |
| College/School: | College of Medical Veterinary and Life Sciences > School of Cancer Sciences |
| Publisher: | Humana Press |
| ISSN: | 1064-3745 |
| ISBN: | 9781493987986 |
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