Dr. rer. nat. Fiona Roll successfully defended her dissertation

The Insitute for Neurophysiology is glad to announce that Dr. rer. nat. Fiona Roll has successfully defended her dissertation at the Institute for Neurophysiology on February 19, 2026.

Her dissertation is entitled: 

“Modelling neuropathic pain in vitro: a multimodal approach using induced-pluripotent stem cell-derived sensory neurons and mechanically compressed keratinocytes” 

The dissertation investigated advanced in vitro models for studying neuropathic pain mechanisms using human iPSC-derived sensory neurons and mechanically stressed keratinocytes. Patient-specific neurons carrying the potentially pathogenic genetic Nav1.9-Y66S variant were investigated for their disease-relevant changes in electrical excitability. In addition, a newly developed compression model demonstrated that keratinocytes from patients with a rare, painful skin disease  exhibit enhanced pro-inflammatory responses under mechanical stress. The study thus provides valuable models for more precise mapping of neuropathic pathomechanisms and a foundation for future, more complex modeling approaches. 

The Insitute for Neurophysiology would like to congratulate Dr. Fiona Roll on her achievement ! 

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