Project A01: Active resilience mechanisms of dopamine midbrain neurons

Principal Investigators

Prof. Dr. Jochen Roeper

Professor of Neurophysiology and Director of Center of Physiology, Goethe University Frankfurt

Prof. Dr. Susann Schweiger

Professor for Human Genetics, Director of Institute for Human Genetics, University Medical Center Mainz

Group Leader at LIR

Project Team

Our Research

A01 aims at understanding the molecular mechanisms of maintaining the firing frequencies and patterns in dopaminergic (DA) ventral tegmental area (VTA) neurons, an established resilience mechanism after exposure to chronic social defeat (CSD). Therefore, A01 (i) identifies the involved DA VTA neuronal subtypes, (ii) identifies and characterizes voltage gated potassium channels (K channels) responsible for the maintenance of firing rates, (iii) tests a causal chain between mTOR-dependent changes in protein synthesis after CSD, K channel up-regulation, recovery of normal VTA dopamine neuron excitability and resilient outcome.


Farassat N, Costa KM, Stojanovic S, Albert S, Kovacheva L, Shin J, Egger  R, Somayaji M, Duvarci S, Schneider G, Roeper J (2019) In vivo  functional diversity of midbrain dopamine neurons within identified  axonal projections. eLife: e48408. doi: 10.7554/eLife.48408

>> Link to PubMed