
Lorraine Young
Professor of Molecular Embryology, Faculty of Medicine & Health Sciences
Contact
- workRoom A63 Wolfson Centre for Stem Cells, Tissue Engineering and Modelling (STEM), CBS
University Park
Nottingham
NG7 2RD
UK - work0115 82 31238
- fax0115 82 31230
- lorraine.young@nottingham.ac.uk
Biography
Outline
My team investigates how, at the epigenetic level, cells acquire totipotency during normal embryonic development. Combined with our ongoing investigation of the nature of epigenetic reprogramming events a cell undergoes in an oocyte cytoplasm after somatic cell nuclear transfer, an exciting application of this work is to develop directed cellular transdifferentation ex ovo for the production of autologous stem cells.
We are investigating the effects of embryo technologies and maternal nutrition on developmental programming by epigenetic changes, especially DNA methylation. Phenotypic consequences (including Large Offspring syndrome) can arise in the fetus, after birth or in embryo-derived stem cells.
Our other main focus is in the epigenetic evaluation of human embryonic stem cells (hESC) and their derivatives, a vital pre-requisite for regenerative medicine applications. Since epigenetic disruptions in the embryo are likely to be transmitted to embryonic stem cells, tumorigenic potential or altered differentiation capacity may be inherent to derivatives. We are focussing on in changes in DNA methylation, part of the regulatory process that acts to stably silence transcription over many cell generations. By combining genome wide epigenetic screens for DNA and histone modifications with stem cell automation, we aim to extend current capacity to evaluate environmental effects on the developing epigenome.
A major application of human embryonic stem cells in Nottingham is to develop novel models for human disease. Our laboratory is particularly interested in the predisposition of adult cardiovascular disease by maternal nutrition, other wise known as "the developmental origins of adult health and disease".
We are investigating the hypothesis that nutrients which determine intracellular methyl group availability, such as folate, vitamin B12 and methionine, can affect DNA methylation at specific loci in the embryo or fetus and programme development by altering cellular proliferation or differentiation in specific tissues. Human embryonic stem cells provide a unique system to model early embryonic and later cardiac development and how these processes are affected by specific nutrients.
Expertise Summary
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•Nuclear reprogramming during normal fertilisation, somatic cell nuclear transfer and induced pluripotency
Molecular Regulation of Preimplantation Development • Large Offspring syndrome and the role of genomic imprinting • Effects of Embryo Technologies (IVF) on Preimplantation Epigenesis and later life health/disease • Embryonic Programming of Adult Disease by Maternal Nutrition and chemical exposure
Modelling systems biology of early human development using human pluripotent stem cells
Human pluripotent stem cell bioprocessing, quality control and automated culture
Developing human pluripotent stem cells and hepatocyte derivatives for automated screening applications • Epigenetic stability in cultured human pluripotent stem cells and consequences for cell differentiation and tumorigenic potential
Teaching Summary
I established the world's first taught MSc course in Stem Cell Technology in 2007 in order to meet a skills gap in students trained in the practical, multidisciplinary and regulatory aspects of stem… read more
Research Summary
My team investigates how, at the epigenetic level, cells acquire totipotency during normal embryonic development. Combined with our ongoing investigation of the nature of epigenetic reprogramming… read more
Selected Publications
MALONEY, CHRISTOPHER A, HAY, SUSAN M, YOUNG, LORAINE E, SINCLAIR, KEVIN D and REES, WILLIAM D, 2011. A methyl-deficient diet fed to rat dams during the peri-conception period programs glucose homeostasis in adult male but not female offspring. The Journal of nutrition. 141(1), 95-100 PRIDDLE, HELEN, ALLEGRUCCI, CINZIA, BURRIDGE, PAUL, MUNOZ, MARIA, SMITH, NIGEL M, DEVLIN, LYNDSEY, SJOBLOM, CECILIA, CHAMBERLAIN, SARAH, WATSON, SUE, YOUNG, LORRAINE E and DENNING, CHRIS, 2010. Derivation and characterisation of the human embryonic stem cell lines, NOTT1 and NOTT2. In vitro cellular & developmental biology. Animal. 46, 367-375
PRIDDLE, HELEN, GRABOWSKA, ANNA, MORRIS, TERESA, CLARKE, PHILIP A, MCKENZIE, ANDREW J, SOTTILE, VIRGINIE, DENNING, CHRIS, YOUNG, LORRAINE and WATSON, SUE, 2009. Bioluminescence imaging of human embryonic stem cells transplanted in vivo in murine and chick models. Cloning and stem cells. 11(2), 259-67
THOMAS, ROB J, ANDERSON, DAVID, CHANDRA, AMIT, SMITH, NIGEL M, YOUNG, LORRAINE E, WILLIAMS, DAVID and DENNING, CHRIS, 2009. Automated, scalable culture of human embryonic stem cells in feeder-free conditions. Biotechnology and bioengineering. 102(6), 1636-44
Current Research
My team investigates how, at the epigenetic level, cells acquire totipotency during normal embryonic development. Combined with our ongoing investigation of the nature of epigenetic reprogramming events a cell undergoes in an oocyte cytoplasm after somatic cell nuclear transfer, an exciting application of this work is to develop directed cellular transdifferentation ex ovo for the production of autologous stem cells . Our other main focus is in the epigenetic evaluation of human embryonic stem cells (hESC) and their derivatives, a vital pre-requisite for regenerative medicine applications. Since epigenetic disruptions in the embryo are likely to be transmitted to embryonic stem cells, tumorigenic potential or altered differentiation capacity may be inherent to derivatives. We are focussing on in changes in DNA methylation, part of the regulatory process that acts to stably silence transcription over many cell generations. A major application of human embryonic stem cells in Nottingham is to develop novel models for human disease. Our laboratory is particularly interested in the predisposition of adult cardiovascular disease by maternal nutrition, other wise known as "the fetal origins of adult disease".
We are investigating the effects of embryo technologies and maternal nutrition on developmental programming by epigenetic changes, especially DNA methylation. Phenotypic consequences can arise in the fetus, after birth or in embryo-derived stem cells.