Collaborative work between the teams of Mark Verheijen (VU-MCN) and Aniko Korosi (UvA-SILS), is recently published in Alzheimer’s and Dementia. The research was mainly performed by Mandy Kater (VU) and Janssen Kotah (UvA), among others, and shows that ‘Early-life stress and amyloidosis share pathogenic pathways involving astrocyte lipid metabolism and the synaptic mitochondrial proteome’.

“We all believe in the importance of a different piece of the puzzle.” prof. dr. Guus Smit says when he explains why this consortium was formed together with 20 other researchers. “It’s about connecting the dots, the cohesion between seemingly different processes underlying the development of dementia from different perspectives. That is what we are looking for in Mechanisms Of DEMentia (MODEM). Because that coherence has to be there. There is no other way.”

A core problem in several dementias is the inability to form new memories and gradual loss of old memories. Funded by a ZonMW open competition grant, the teams of Wiep Scheper (Amsterdam UMC Human Genetics/FGA), Priyanka Rao-Ruiz (VU MCN) and Michel van den Oever (VU MCN) will collaborate to obtain mechanistic insight into memory formation and persistence and how this is disturbed in dementia.

Aina Badia-Soteras, together with others of the Neuron-Glia Interaction team and collaborators, has shown that retraction of fine astrocyte processes from the synapse is a regulated process that gates the strength of fear memories. This work is published in Biological Psychiatry

Mandy Kater, together with collaborators of the Memorable consortium, has shown that prevention of microgliosis halts early memory loss in a mouse model of Alzheimer’s disease. This work is published in Brain Behavior and Immunity

Rik van der Kant, Natalia Goriounova and Priyanka Rao-Ruiz, researchers at the Center for Neurogenomics & Cognitive Research at the Vrije Universiteit Amsterdam, have been awarded by the Dutch Research Council (NWO) with a Vidi grant worth 800,000 euros.

Michel van den Oever and Esther Visser were involved in a study on compulsive alcohol use led by Markus Heilig and Esi Domi at the Linköping University in Sweden. Using the viral-TRAP technique developed by the CNCR Memory Circuits team, they identified a small population of PKC-delta-expressing neurons in the central amygdala that drives footshock-punished alcohol intake. Their findings are published in Science Advances.

A collaborative study by members of the Memory Circuits team together with the lab of Harm Krugers and Sylvie Lesuis (UvA) reveals that elevated levels of the stress hormone corticosterone induce an increase in the size of a hippocampal fear engram and this change underlies generalized expression of fear in a neutral environment. Their findings were published in Biological Psychiatry.

A new study by David Hondius, Frank Koopmans and colleagues provides molecular evidence that so-called granulovacuolar cells are representing the pre-tangle neuronal stage in Alzheimer disease. The study was published in Acta Neuropathologica on January 25, 2021.

Memory Circuits Team (Michel van den Oever) and Alzheimer Team (Ronald van Kesteren) join forces to test how hyperactive interneurons affect the formation and reactivation of memory engrams. They receive a 300 k€ grant from Alzheimer Nederland to investigate this.