PhD Position: Microfluidics to Study Huntington's Disease by Visual Proteomics (P1901)
100% positions for 4 years, earliest starting date: 1. January 2020
The Swiss Nanoscience Institute (SNI) at the University of Basel invites highly motivated scientists to apply for the SNI PhD program in Nanoscience.
Stereotypic spatiotemporal spreading of pathological lesions through the nervous system is a hallmark of many neurodegenerative diseases. The prion-like spreading model provides an elegant explanation for this observation , postulating that misfolded proteins (amyloids) can disease healthy cells by imprinting their misfold onto endogenous proteins. However, the precise spreading mechanism and information carrier is still unknown. Huntington's disease (HD) is an archetypical example of the prion-like spreading phenomena: dominantly inherited mutations lead to the misfolding and aggregation of the huntingtin (HTT) protein and the onset of the lethal disease in a patient's age of around 35 years. HD is manifested by uncontrolled movements, depression, and a loss of cognition. The project is based on our recently developed platform for microfluidics-based sample preparation for electron microscopy (EM) called 'cryoWriter' [2,3] which allows novel strategies for single-cell analysis by 'differential visual proteomics'  and 'interaction-labeling' . Furthermore, we developed a microfluidic platform for the co-culture of diseased and healthy cells, assuring exclusive communication via neurites. A primary task will be to further develop the cryoWriter system for the integration of the cell-culturing chip to allow direct investigation of the neurite interaction region between two cells by electron tomography.
The specific aims of the project are
(I) to study the transmission pathway of the misfolded mutant huntingtin protein (mHTT) from diseased to healthy cells,
(ii) to study the fate and effects of these amyloid nanoparticles in the cell using our recently developed 'visual proteomics' approaches, and
(iii) to develop a new microfluidics platform that allows precise studying of the synaptic interaction between neurons by cryogenic electron microscopy (cryo-EM) tomography at nanometer-scale precision.
 E. Pecho-Vrieseling et al., Transneuronal propagation of mutant huntingtin contributes to non-cell autonomous pathology in neurons.; Nat. Neurosci., 17(8):1064–1072, 2014.
 S. A. Arnold et al, Total sample conditioning and preparation of nanoliter volumes for electron microscopy. ACS Nano, 10(5):4981–4988, 2016.
 C. Schmidli et al. Microfluidic protein isolation and sample preparation for high-resolution cryo-EM. Proc Natl Acad Sci U S A, 2019.
 A. Syntychaki et al., 'Differential visual proteomics': Enabling the proteome-wide comparison of protein structures of single- cells. J. Proteome Res., 2019 (in press).
 D. Giss et al., Exploring the interactome: Microfluidic isolation of proteins and interacting partners for quantitative analysis by electron microscopy. Anal. Chem., 86(10):4680–4687, 2014.
We are looking for a very motivated researcher with a Master's degree in Natural Sciences, with a strong background in engineering and microfabrication, interested in working in a highly interdisciplinary group and with a keen interest in biomedical questions. The project requires the abilities to work independently, interact with other researchers, presentation skills, and a solid basis in scientific research.
We offer you
- Excellent scientific and social environment
- Very competitive employment conditions
- Membership in a very supportive and recognised community
The successful candidate will join an attractive interdisciplinary programme together with the ~30 currently supported scientists. The SNI covers a wide variety of topics, including cutting edge quantum physics and chemistry, material science, nanotechnology, biochemistry, cell biology, or medical research.
Application / Contact
More information and the online application platform can be found at www.phd.nanoscience.ch. For questions please contact the head of the SNI PhD programme, Dr. Andreas Baumgartner (email@example.com), or directly the respective project leaders. The complete application has to be submitted before 31 December 2019. Please note that the decision to fill a given vacancy can be taken at any time from now.
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