文章基本信息

标题：Multi-Omic Analyses of Growth Cones at Different Developmental Stages Provides Insight into Pathways in Adult Neuroregeneration
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作者：Muhammad Zain Chauhan ; Jennifer Arcuri ; Kevin K. Park 等
期刊名称：iScience
印刷版ISSN：2589-0042
出版年度：2020
卷号：23
期号：2
页码：1-42
DOI：10.1016/j.isci.2020.100836
语种：English
出版社：Elsevier
摘要：SummaryGrowth cones (GCs) are structures associated with growing neurons. GC membrane expansion, which necessitates protein-lipid interactions, is critical to axonal elongation in development and in adult neuritogenesis. We present a multi-omic analysis that integrates proteomics and lipidomics data for the identification of GC pathways, cell phenotypes, and lipid-protein interactions, with an analytic platform to facilitate the visualization of these data. We combine lipidomic data from GC and adult axonal regeneration following optic nerve crush. Our results reveal significant molecular variability in GCs across developmental ages that aligns with the upregulation and downregulation of lipid metabolic processes and correlates with distinct changes in the lipid composition of GC plasmalemma. We find that these processes also define the transition into a growth-permissive state in the adult central nervous system. The insight derived from these analyses will aid in promoting adult regeneration and functional innervation in devastating neurodegenerative diseases.Graphical AbstractDisplay OmittedHighlights•Simultaneous proteomics and lipidomics analyses of developmental growth cones•Combined multi-omics analyses of regenerating optic nerves and growth cones•Integrating protein-protein with protein-lipid interactions in growth conesBiological Sciences; Systems Biology; Omics; Proteomics; Lipidomics