Information processing in a neural circuit that links food to lifespan and ageing using automated microscopy in C. elegans

QueeLim Ch'ng (primary)
Centre for Developmental Neurobiology
King's College London
Chris Barnes (secondary)
Cell and Developmental Biology
UCL

Abstract

Our brains sense how much we eat to adjust our physiology. The information processing mechanisms are unknown, posing a fundamental question in genetics, neurobiology, physiology, and systems biology. Here we investigate a neural code for food-sensing based on gene expression, an unexplored mechanism of neural computation. Using microfluidics to automate high-throughput microscopy, we will quantify gene expression in a neural circuit that encodes food levels to influence ageing. Genetic manipulation of this circuit and modelling will reveal how its connectivity generates information processing functions. This project combines advanced techniques in molecular genetics, quantitative microscopy, and computational modelling.


References

Diana G., Patel D. S., Entchev E. V., Zhan M., Lu H., and Ch’ng Q. (2017) Genetic control of encoding strategy in a food-sensing neural circuit. eLife 2017;6:e24040

Zhan M., Crane M. M., Entchev E. V., Caballero A., Fernandes de Abreu D., Ch’ng Q, and Lu H. (2015) Automated Processing of Imaging Data Through Multi-Tiered Classification of Biological Structures Illustrated Using Caenorhabditis elegans. PLoS Comp Biol 24;11(4):e1004194. doi: 10.1371/journal.pcbi.1004194

Entchev E. V., Patel D. S., Zhan M., Steele A, Lu H. and Ch’ng Q. (2015) A Gene-Expression-Based Neural Code for Food Abundance that Mediates Dietary Effects on Lifespan. eLife 4:e06259

Fernandes de Abreu D., Caballero A., Fardel P., Stroustrup N., Chen Z., Lee K., Keyes W. D., Nash Z. M., López-Moyado I. F., Vaggi F., Cornils A., Regenass M., Neagu A., Ostojic I., Chang L., Cho Y., Sifoglu D., Shen Y., Fontana W., Lu H., Csikasz-Nagy A., Murphy C., Antebi A., Blanc E., Apfeld J., Zhang Y., Alcedo J. and Ch’ng Q. (2014) An Insulin-to-Insulin Regulatory Network Orchestrates Phenotypic Specificity in Development and Physiology. PLoS Genet, 10(3):e1004225. doi: 10.1371/journal.pgen.1004225.


BBSRC Area
Genes, development and STEM* approaches to biology
Area of Biology
AgeingNeurobiology
Techniques & Approaches
EngineeringGeneticsImage ProcessingMicroscopy / ElectrophysiologyMolecular BiologySimulation / Modelling