Pathology of the adult central nervous system induced by genetic inhibition of programmed cell death in Drosophila pupae

Kazue Usui-Aoki, Yoshiro Nakano, Daisuke Yamamoto

    Research output: Contribution to journalArticlepeer-review

    8 Citations (Scopus)

    Abstract

    In the spinster (spin) mutant of Drosophila melanogaster, the extent of programmed cell death (PCD) in the abdominol ganglion 6 h after puparium formation (APF) is significantly reduced. The shortening of the abdominal ganglion, which is normally completed 48 h APF, does not occur. After edosion, neurodegeneration accompanied by accumulation of autofluorescent moterials is manifested in the central nervous system (CMS) of the spin mutant. The materials accumulated in the spin-mutant CNS contain a substance that is immunopositive to an antibody against GM2 ganglioside. Halving the dosage of three cell death genes, rpr, grim, and hid, blocks shortening of the abdominal ganglion and induces neurodegenerotion accompanied by accumulation of autofluorescent materials in the adult CNS. These observations suggest that the primary action of the spin mutation is to reduce the extent of PCD 6 h APF, which concomitantly leads to a failure in shortening of the abdominal ganglion and to neurodegeneration of the adult CNS.

    Original languageEnglish
    Pages (from-to)94-101
    Number of pages8
    JournalArchives of Insect Biochemistry and Physiology
    Volume49
    Issue number2
    DOIs
    Publication statusPublished - 2002 Feb 1

    Keywords

    • Apoptosis
    • Drosophila
    • Metamorphosis
    • Mutants
    • Neurodegeneration
    • Spinster

    ASJC Scopus subject areas

    • Physiology
    • Biochemistry
    • Insect Science

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