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Systematic Identification of Cell-Cell Communication Networks in the Developing Brain
Bilal N Sheikh1, Olga Bondareva2, Sukanya Guhathakurta3
1Max Planck Institute of Immunobiology and Epigenetics, Stuebeweg 51, Freiburg 79108, Germany.
Iscience
|November 3, 2019
Summary
Researchers mapped cell-cell communication in the developing brain using EMBRACE. This method identified 1,710 interactions between neural, vascular, and microglial cells, revealing complex developmental signaling.
Area of Science:
- Neuroscience
- Developmental Biology
- Cell Biology
Background:
- Inter-cellular communication is crucial for neural development.
- Systematic mapping of communication between neural, vascular, and microglial cells is lacking.
Purpose of the Study:
- To develop a method for simultaneous isolation of multiple brain cell types.
- To create a comprehensive cell-cell communication map of the developing mouse brain.
Main Methods:
- EMBRACE (embryonic brain cell extraction using Fluorescence-Activated Cell Sorting) for rapid, high-purity cell isolation.
- Transcriptional analysis of isolated neural, mural, endothelial, and microglial cells.
- In silico and experimental validation of ligand-receptor interactions.
Main Results:
- EMBRACE isolates target cells with >94% purity in ~4 hours.
- Identified 1,710 unique in silico ligand-receptor interactions.
- Experimentally confirmed interactions including APOE-LDLR, APOE-LRP1, VTN-KDR, and LAMA4-ITGB1.
Conclusions:
- Developed EMBRACE for efficient multi-cell type isolation.
- Generated a comprehensive brain cell-cell communication map.
- Revealed extensive communication networks critical for brain development.
