Mission

We aim to unravel the molecular mechanisms underlying brain disorders by combining human brain data, computational biology, and experimental organoid models to understand disease heterogeneity and improve diagnosis and prognosis.

Understanding Heterogeneity in Brain Disorders

Most brain disorders, including psychiatric and neurodegenerative diseases, are difficult to diagnose and study due to their substantial clinical, pathological, and genetic heterogeneity. This complexity is often overlooked, yet it plays a crucial role in determining disease mechanisms, progression, and patient outcomes.

The Holtman Lab, part of the University Medical Center Groningen, investigates this heterogeneity to better understand the biological basis of brain disorders. In collaboration with the Netherlands Brain Bank, the lab established the Netherlands Neurogenomics Database (NND), a platform that integrates clinical, genetic, and neuropathological data from deeply characterized human brain donors to enable systematic cross-disorder analyses.

Our research combines computational approaches with experimental neuroscience. We analyze post-mortem human brain material from the Netherlands Brain Bank to identify molecular and cellular signatures associated with disease heterogeneity. In parallel, we use human brain organoid models to experimentally investigate the functional effects of key genetic risk factors and environmental influences implicated in brain disorders.

By integrating human brain data with experimental model systems, the Holtman Lab aims to uncover shared and disorder-specific disease mechanisms, ultimately contributing to improved diagnosis, prognosis, and therapeutic strategies for brain disorders.

Research Pillars

Disease Heterogeneity

We investigate the clinical, genetic, and pathological diversity within and across brain disorders to identify distinct disease trajectories and biological subtypes.

Human Brain Data Integration

Using deeply characterized post-mortem brain material from the Netherlands Brain Bank and the Netherlands Neurogenomics Database, we study the molecular architecture of brain disorders across diagnostic boundaries.

Experimental Modeling

We use human brain organoids and other experimental systems to test the functional effects of genetic risk variants and environmental factors, linking molecular mechanisms to disease phenotypes.