David Tosh

Biography

David Tosh is a professor belongs to the department of Biology & Biochemistry from the university of Bath.

Research Interest

My lab is mainly interested in the general phenomenon of cellular reprogramming. Reprogramming is defined as the conversion of one cell type (including stem cells) to another. We have developed a number of models for the reprogramming of pancreatic cells to liver cells and the reverse, liver to pancreas transformation and for the conversion of oesophagus to intestine (see selected publications). Studying cellular reprogramming will help us to: Understand the normal developmental biology of the cells that interconvert. Identify transcription factors that could be used to differentiate stem cells for therapeutic transplantation and Gain insight into how certain cancers develop. Developmental Biology How does dissecting the cellular and molecular basis of reprogramming help with understanding normal embryonic development? The answer is that the gene (transcription factor) that induces reprogramming is also probably important in distinguishing the two tissues during development. We are currently developing this research to identify developmentally important genes. Stem Cell Therapy Stem cells are now entering an exciting phase of research and attention has recently focused on the ability to utilise stem cells as therapeutic modalities. If we can identify key transcription factors (which we call master switch genes) that will induce conversion of one cell type to another, we may be able to use these genes to induce the differentiation of stem cells