Investigating fundamental developmental processes in human stem cell systems for regenerative medicine & neural cancer therapies.

Lab News

Both lab space and personnel-wise, our lab is finally up and running at the new location in Salzburg, Austria. Join us, we are recruiting!

Recently, Thalia Martins Rebelo, Alina Jaufmann and Nicole Schider joined the lab to pursue projects in neural stem cell differentiation and neuroblastoma research in our team-based effort.

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Our Research

CD surface antigens in neurobiology

The Pruszak laboratory has an established, internationally recognized track record in the characterization of the neural lineage according to CD surface antigens. Based on a range of prior research [Pruszak et al., 2007; Wernig et al., 2008; Pruszak et al., 2009; Carette et al., 2010; Turac et al., 2013; Menon et al., 2014; Schöndorf et al., 2014; Pruszak (ed.), 2015; Hindley et al., 2016; Ferlemann et al., 2017] we aim to elucidate the functional and biomedical relevance of differential CD surface antigen expression patterns in neural cell types. In addition to their utility as cell population identifiers, surface molecules play major roles in cellular interactions in neuroimmunology [Amor & Woodroofe, 2014], tumor biology and infectious disease. For instance, ...

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Hippo/YAP-TAZ signaling in neural development and cancer

The Hippo/YAP-TAZ signaling pathway plays an important role in the regulation of cellular proliferation, stem cell niches and cancer. It serves as an integrator of cell surface-mediated inputs in tissue homeostasis (such as cell density and mechanotransduction) and is involved in critical developmental and tumorigenic processes such as epithelial-to-mesenchymal transitions (EMT). We study the Hippo/YAP-TAZ pathway in the context of surface molecular signaling interactions in human stem cells, during physiological EMT in neural crest development and in neurodevelopmental malignancies.

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Neuroblastoma research

Originating from the embryonic neural crest, neuroblastoma is the most common extra-cranial solid cancer type in children. Its broad spectrum of clinical outcomes includes rapidly progressive malignant course, but also occasional spontaneous regression, reflecting an underlying inherent cellular heterogeneity that remains poorly understood. As current treatments often do not lead to tumor eradication, there is a need to better define therapy-resistant neuroblastoma and to identify new modulatory molecules. We previously performed a first comprehensive flow cytometric characterization of surface molecule expression in neuroblastoma cell lines.....

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Publications

Thomas R, Menon V, Mani R, Pruszak J (2022). Glycan Epitope and Integrin Expression Dynamics Characterize Neural Crest Epithelial-to-Mesenchymal Transition (EMT) in Human Pluripotent Stem Cell Differentiation. Stem Cell Rev and Rep 18, 2952–2965. https://doi.org/10.1007/s12015-022-10393-1

Menon V, Thomas R, Elgueta C, Horl M, Osborn T, Hallett PJ, Bartos M, Isacson O, Pruszak J (2019). Comprehensive Cell Surface Antigen Analysis Identifies Transferrin Receptor Protein-1 (CD71) as a Negative Selection Marker for Human Neuronal Cells. Stem Cells 37, 1293-1306. http://doi.org/10.1002/stem.3057

Schöndorf DC, Ivanyuk D, Baden P, Sanchez-Martinez A, De Cicco S, Yu C, Giunta I, Schwarz LK, Di Napoli G, Panagiotakopoulou V, Nestel S, Keatinge M, Pruszak J, Bandmann O, Heimrich B, Gasser T, Whitworth AJ, Deleidi M. The NAD+ Precursor Nicotinamide Riboside Rescues Mitochondrial Defects and Neuronal Loss in iPSC and Fly Models of Parkinson's Disease. Cell Rep. 2018 Jun 5;23(10):2976-2988. https://doi.org/10.1016/j.celrep.2018.05.009

Ferlemann FC, Menon V, Condurat AL, Rößler J, Pruszak J (2017). Surface marker  profiling of SH-SY5Y cells enables small molecule screens identifying  BMP4 as a modulator of neuroblastoma differentiation. Sci Rep 7, 13612. https://doi.org/10.1038/s41598-017-13497-8 

Gilliam DT, Menon V, Bretz NP, Pruszak J (2017). The CD24 surface antigen in neural development and disease. Neurobiol Dis. 99, 133-144. https://doi.org/10.1016/j.nbd.2016.12.011

Hindley CJ*, Condurat AL*, Menon V, Thomas R, Azmitia LM, Davis JA,  Pruszak J (2016). The Hippo pathway member YAP enhances human neural crest cell fate and migration. Sci Rep. 6, 23208. https://doi.org/10.1038/srep23208

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Meet Our Lab Members

Nicole Schider

Nicole Schider

Laboratory Manager, Research Associate

Nicole Schider

Laboratory Manager, Research Associate

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Jan Pruszak

Jan Pruszak

Principal Investigator, Director of the Institute of Anatomy and Cell Biology

Jan Pruszak

Principal Investigator, Director of the Institute of Anatomy and Cell Biology

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Mirjana Malnar

Mirjana Malnar

Postdoctoral Fellow, Institute of Anatomy and Cell Biology

Mirjana Malnar

Postdoctoral Fellow, Institute of Anatomy and Cell Biology

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Anna Maria Ernst

Anna Maria Ernst

Technical Assistant, Institute of Anatomy and Cell Biology

Anna Maria Ernst

Technical Assistant, Institute of Anatomy and Cell Biology

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Rakesh Mani

Rakesh Mani

Research Associate, Institute of Anatomy and Cell Biology

Rakesh Mani

Research Associate, Institute of Anatomy and Cell Biology

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Shamsudeen Suleiman

Shamsudeen Suleiman

Research Assistant, Institute of Anatomy and Cell Biology

Shamsudeen Suleiman

Research Assistant, Institute of Anatomy and Cell Biology

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Devlitšarov Daniel

Devlitšarov Daniel

Technical Assistant, Institute of Anatomy and Cell Biology

Devlitšarov Daniel

Technical Assistant, Institute of Anatomy and Cell Biology

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Careers

Join Our Lab


We are looking for motivated team players with a sportive spirit and strong interest in developmental biology, cell biology and regenerative medicine. Applicants should hold a doctorate or masters degree in biology, biochemistry or a related subject. Practical experience in molecular biology, biochemistry, cell culture and/or computational biology is beneficial but not required. Good knowledge of English is essential. The goal of our work is to elucidate mechanisms of cell-cell communication that govern growth and differentiation in the context of neural development. Our studies focus primarily on the role of surface molecule-mediated cell interactions in the regulation of downstream signaling cascades and cell-specific gene expression. As the main model system we utilize human pluripotent stem cells (embryonic stem cells and induced pluripotent stem cells), exploiting the unique opportunity to study and modulate human neural development in an accessible in vitro system. This work has implications for fundamental neurobiology, as well as for neurooncology and regenerative approaches. The Paracelsus Medical University (PMU) is a private academic institution with locations in Salzburg and Nuremberg. Founded in 2002, the PMU encompasses 22 university institutes, three research centres and six research programs and several doctoral programs with a focus on biomedical sciences. Our lab is also associated with the local Spinal Cord Injury and Tissue Regeneration Center (SCI-TReCS). Salzburg is located in the heart of Europe with excellent access to recreational possibilities and cultural exposure. The successful applicant will join a small, highly-motivated, young and international team. A limited number of positions is available that cover the researcher salary. Alternatively, applications generating external funding may be considered. Applications to be considered should include a CV with a specific letter of motivation, statement of research experience/interests and the contact details of three references, as well as potential sources of external funding. Please submit your application electronically as a pdf to: jan.pruszaknoSpam@pmu.ac.at

 

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