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Abstract #2389

Transcriptome-Connectome association from fetal stage to adulthood

Minhui Ouyang1,2, Tanay Poddar1,3, Gabriel Santpere4, David Andrijevic5, Shaojie Ma5, Kartik Pattabiraman5, Kevin Gobeske5, Nenad Sestan5, and Hao Huang1,2
1Department of Radiology, Children's Hospital of Philadelphia, Philadelphia, PA, United States, 2Department of Radiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States, 3Department of Neuroscience, University of Pennsylvania, Philadelphia, PA, United States, 4Neurogenomics group, Research Programme on Biomedical Informatics (GRIB), Hospital del Mar Medical Research Institute (IMIM), DCEXS, Universitat Pompeu Fabra, Barcelona, Spain, 5Department of Neuroscience and Kavli Institute for Neuroscience, Yale School of Medicine, New Haven, CT, United States

Synopsis

Keywords: Genetics, Normal development, screening; neonatal; brain connectivity; connectome; transcriptome

Motivation: Transcriptome, representing the set of gene expression, exhibits spatiotemporal heterogeneity during brain development, underlying the dramatic changes in brain structural connectivity as measured by diffusion MRI throughout development.

Goal(s): Our goal was to elucidate the association between macroscopic structural connectome and microscopic transcriptome across development.

Approach: Here, we revealed this dynamic association between structural connectome and gene expression from a large cohort of 336 participants from fetal stage to adulthood.

Results: The changes of associated genes’ enrichment in cell types, biological processes, cellular components, and molecular functions across different ages shed light into the dynamic transcriptomic roles in connectome maturation.

Impact: By associating transcriptome map from over 6500 protein-encoding genes and dMRI-derived structural network, we revealed spatiotemporally heterogeneous transcriptome-connectome association from fetal stage to adulthood, providing insights into genetically patterned process of brain topological changes in health and disease.

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