Dr Tara Walker
Senior Research Associate, Kempermann Group
Center for Regenerative Therapies, Dresden, Germany

Title: "Cell death in adult hippocampal neurogenesis is ferroptotic and rescued by selenium"

Abstract: Apoptotic cell death is a key mechanism controlling the generation of new neurons in the adult hippocampus, a brain region important for learning and memory. We show here that ferroptosis, a recently-discovered form of programmed cell death with as yet unknown physiological functions, explains the first wave of cell death at the precursor cell stage of neurogenesis. Reduction of ferroptosis by exogenous selenium increased neurogenesis in the hippocampus but not the subventricular zone, another adult neural stem cell niche. This suggests a mechanism whereby external stimuli including physical activity increase hippocampal but not subventricular zone neurogenesis. We propose that ferroptotic elimination maintains an expandable reservoir of neural precursor cells that is sensitive to the environmental regulation of adult hippocampal neurogenesis.



About Neuroscience Seminars

Neuroscience seminars at the QBI play a major role in the advancement of neuroscience in the Asia-Pacific region. The primary goal of these seminars is to promote excellence in neuroscience through the exchange of ideas, establishing new collaborations and augmenting partnerships already in place.

Seminars in the QBI Auditorium on Level 7 are held on Wednesdays at 12-1pm, which are sometimes simulcast on Zoom (with approval from the speaker). We also occassionally hold seminars from international speakers via Zoom. The days and times of these seminars will vary depending on the time zone of the speaker. Please see each seminar listed below for details. 


Neuroscience Seminars archive 2005-2018