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Speaker: Madeline Lancaster, Ph.D.

Medical Research Council Laboratory of Molecular Biology, Cambridge Biomedical Campus, Cambridge, UK

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Abstract: The human brain sets us apart as a species, with its size being one of its most striking features. Brain size is largely determined during development as vast numbers of neurons and supportive glia are generated. In an effort to better understand the events that determine the human brain鈥檚 cellular makeup, and therefore its size, we use a human model system in a dish, called cerebral organoids. These 3D tissues are generated from pluripotent stem cells through neural differentiation and a supportive 3D microenvironment to generate organoids with the same tissue architecture as the early human fetal brain. Such organoids are allowing us to tackle questions previously impossible with more traditional approaches. Indeed, our recent findings provide insight into regulation of brain size and neuron number across ape species, identifying key stages of early neural stem cell expansion that set up a larger starting cell number to enable the production of increased numbers of neurons. We are also investigating the role of extrinsic regulators in determining numbers and types of neurons produced in the human cerebral cortex. Overall, our findings are pointing to key, human-specific aspects of brain development and function, that have important implications for neurological disease.

Bio: Dr Madeline Lancaster is a Group Leader in the Cell Biology Division of the Medical Research Council Laboratory of Molecular Biology (LMB), part of the Cambridge Biomedical Campus in Cambridge, UK. Madeline studied biochemistry at Occidental College, Los Angeles, USA, before completing a PhD in 2010 in biomedical sciences at the University of California, San Diego, USA. She then joined the Institute of Molecular Biotechnology of the Austrian Academy of Sciences (IMBA) in Vienna, Austria as a postdoctoral researcher where she developed the first cerebral organoids, before joining the LMB in 2015.

Research in the Lancaster lab focuses on human brain development using stem cells to generate brain organoids that allow modelling of human brain development in vitro. The laboratory studies the most fundamental differences between human brain development and that of other mammalian species. The lab also studies cellular mechanisms underlying neurodevelopmental disorders such as autism and intellectual disability.

Supported by the generosity of the Killam Trusts , The Neuro鈥檚 Killam Seminar series hosts outstanding guest speakers whose research is of interest to the scientific community at The Neuro and 香蕉视频.

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