Corrigendum: Systems survey of endocytosis by multiparametric image analysis
Max Planck Institute for Molecular Cell Biology and Genetics, Germany.Nature (Impact Factor: 41.46). 02/2010; 464(7286):243-9. DOI: 10.1038/nature08779
Endocytosis is a complex process fulfilling many cellular and developmental functions. Understanding how it is regulated and integrated with other cellular processes requires a comprehensive analysis of its molecular constituents and general design principles. Here, we developed a new strategy to phenotypically profile the human genome with respect to transferrin (TF) and epidermal growth factor (EGF) endocytosis by combining RNA interference, automated high-resolution confocal microscopy, quantitative multiparametric image analysis and high-performance computing. We identified several novel components of endocytic trafficking, including genes implicated in human diseases. We found that signalling pathways such as Wnt, integrin/cell adhesion, transforming growth factor (TGF)-beta and Notch regulate the endocytic system, and identified new genes involved in cargo sorting to a subset of signalling endosomes. A systems analysis by Bayesian networks further showed that the number, size, concentration of cargo and intracellular position of endosomes are not determined randomly but are subject to specific regulation, thus uncovering novel properties of the endocytic system.
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- "Interestingly, a functional genomics screen revealed that the endosomal system is modulated by a number of metabolic pathways, including glycolysis, gluconeogenesis, and steroid biosynthesis (Collinet et al., 2010). This argues that the functional relationship between metabolism and endocytosis is bi-directional . "
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- "However, we did not find any significant effect of PLCG1 knockdown on the number of transferrin receptor–containing endosomes (Supplemental Figure S6A). The number of endosomes has been used to infer effects on the endocytic system (Collinet et al., 2010). In addition, searching the endosomics database (endosomics .mpi-cbg.de/) "
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