PT - JOURNAL ARTICLE AU - Anna S. Monzel AU - Kathrin Hemmer AU - Tony Kaoma Mukendi AU - Philippe Lucarelli AU - Isabel Rosety AU - Alise Zagare AU - Silvia Bolognin AU - Paul Antony AU - Sarah L. Nickels AU - Rejko Krueger AU - Francisco Azuaje AU - Jens C. Schwamborn TI - Machine learning-assisted neurotoxicity prediction in human midbrain organoids AID - 10.1101/774240 DP - 2019 Jan 01 TA - bioRxiv PG - 774240 4099 - http://biorxiv.org/content/early/2019/09/19/774240.short 4100 - http://biorxiv.org/content/early/2019/09/19/774240.full AB - A major challenge in the field of neurodegenerative diseases is the poor translation of pre-clinical models to clinical applications. The human brain is an immensely complex structure, which makes it difficult to recapitulate its development, function and disorders. In the recent years, brain organoids derived from human induced pluripotent stem cells have risen as novel tools to study neurodegenerative diseases such as Parkinson’s disease (PD). PD is a multifactorial disorder, with aging, genetics and environmental factors as key etiological elements. The majority of the PD cases are idiopathic and proposed to result from a complex interaction between genetic predisposition and environmental exposure. Consequently, the identification of potentially disease causing environmental factors is of critical importance. Organoids, as complex multi-cellular tissue proxies, are an ideal tool to study cellular response to environmental changes. However, with increasing complexity of the system, usage of quantitative tools becomes challenging. This led us to develop an automated high-content image analysis pipeline for image-based cell profiling in the organoid system. Here, we introduce a midbrain organoid system that recapitulates features of neurotoxin-induced PD, representing a platform for machine-learning-assisted prediction of neurotoxicity in high-content imaging data. This model is a valuable tool for advanced in vitro PD modeling and for the screening of putative neurotoxic compounds.