Role of mechanical stiffness on brain wound healing

Roberto Mayor (primary)
CDB
UCL
Guillaume Charras (secondary)
Cell and Developmental Biology
UCL

Abstract

Cell migration is essential for wound healing, and although considerable progress has been achieved in identifying many of the molecular pathways that control cell migration, the role of tissue stiffness on cell migration during wound healing is unknown. By combining expertise in cell migration (Mayor) and biomechanics (Charras), we have recently uncovered a novel role for mechanical stiffness in regulating neural crest migration. Here we propose this multi-disciplinary project that will build on these findings by studying the role of brain stiffness on macrophage migration during wound healing. By taking the advantage of zebrafish transgenesis and novel optogenetic tools this project will test the new hypothesis that mechanical tissue stiffness controls brain wound healing.


References

1. Barriga EH, Franze K, Charras G, Mayor R. (2018). Tissue stiffening coordinates morphogenesis by triggering collective cell migration in vivo. Nature. 554; 523-52
2. Moeendarbary E, L. Valon, Fritzsche M, Harris A, Moulding D, Thrasher A, Stride E, Mahadevan L, Charras G. “The cytoplasm behaves as a poroelastic material”, Nature Materials, 12(3):253-261, (2013).
3. Kuriyama S, Theveneau E, Benedetto A, Parsons M, Tanaka M, Charras G, Kabla A, Mayor R. (2014). In vivo collective cell migration requires an LPAR2-dependent increase in tissue fluidity. J Cell Biol. 206, 113-27
4. Harris A, Peter L, Bellis J, Baum B, Kabla A, Charras G. “Characterising the mechanics of cell monolayers”, PNAS, 2012 Oct 9;109(41):16449-54.
5. Mayor, R., and S.Etienne-Manneville. 2016. The front and rear of collective cell migration. Nat. Rev. Mol. Cell Biol. 17:97-109.


BBSRC Area
Genes, development and STEM* approaches to biologyMolecules, cells and industrial biotechnology
Area of Biology
Cell BiologyDevelopmentGenetics
Techniques & Approaches
BiochemistryBiophysicsGeneticsImage ProcessingMicroscopy / Electrophysiology