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Citation
Li, G., Forero, M.G., Wentzell, J.S., Durmus, I., Wolf, R., Anthoney, N.C., Parker, M., Jiang, R., Hasenauer, J., Strausfeld, N.J., Heisenberg, M., Hidalgo, A. (2020). A Toll-receptor map underlies structural brain plasticity.  eLife 9(): e52743.
FlyBase ID
FBrf0245208
Publication Type
Research paper
Abstract

Experience alters brain structure, but the underlying mechanism remained unknown. Structural plasticity reveals that brain function is encoded in generative changes to cells that compete with destructive processes driving neurodegeneration. At an adult critical period, experience increases fiber number and brain size in Drosophila. Here, we asked if Toll receptors are involved. Tolls demarcate a map of brain anatomical domains. Focusing on Toll-2, loss of function caused apoptosis, neurite atrophy and impaired behaviour. Toll-2 gain of function and neuronal activity at the critical period increased cell number. Toll-2 induced cycling of adult progenitor cells via a novel pathway, that antagonized MyD88-dependent quiescence, and engaged Weckle and Yorkie downstream. Constant knock-down of multiple Tolls synergistically reduced brain size. Conditional over-expression of Toll-2 and wek at the adult critical period increased brain size. Through their topographic distribution, Toll receptors regulate neuronal number and brain size, modulating structural plasticity in the adult brain.

PubMed ID
PubMed Central ID
PMC7077983 (PMC) (EuropePMC)
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    Language of Publication
    English
    Additional Languages of Abstract
    Parent Publication
    Publication Type
    Journal
    Abbreviation
    eLife
    Title
    eLife
    ISBN/ISSN
    2050-084X
    Data From Reference
    Aberrations (2)
    Alleles (48)
    Genes (25)
    Natural transposons (1)
    Insertions (18)
    Experimental Tools (4)
    Transgenic Constructs (32)