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C. elegans phagocytosis and cell-migration protein CED-5 is similar to human DOCK180

Author

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  • Yi-Chun Wu

    (Howard Hughes Medical Institute, 68-425, Massachusetts Institute of Technology)

  • H. Robert Horvitz

    (Howard Hughes Medical Institute, 68-425, Massachusetts Institute of Technology)

Abstract

During programmed cell death, cell corpses are rapidly engulfed1. This engulfment process involves the recognition and subsequent phagocytosis of cell corpses by engulfing cells1,2,3,4. How cell corpses are engulfed is largely unknown. Here we report that ced-5, a gene that is required for cell-corpse engulfment in the nematode Caenorhabditis elegans5, encodes a protein that is similar to the human protein DOCK180 and the Drosophila melanogaster protein Myoblast City (MBC), both of which have been implicated in the extension of cell surfaces6. ced-5 mutants are defective not only in the engulfment of cell corpses but also in the migrations of two specific gonadal cells, the distal tip cells. The expression of human DOCK180 in C. elegans rescued the cell-migration defect of a ced-5 mutant. We present evidence that ced-5 functions in engulfing cells during the engulfment of cell corpses. We suggest that ced-5 acts in the extension of the surface of an engulfing cell around a dying cell during programmed cell death. We name this new family of proteins that function in the extension of cell surfaces the CDM (for CED-5, DOCK180 and MBC) family.

Suggested Citation

  • Yi-Chun Wu & H. Robert Horvitz, 1998. "C. elegans phagocytosis and cell-migration protein CED-5 is similar to human DOCK180," Nature, Nature, vol. 392(6675), pages 501-504, April.
    • Handle: RePEc:nat:nature:v:392:y:1998:i:6675:d:10.1038_33163
    DOI: 10.1038/33163
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    1. Viviane Tran & Sarah Nahlé & Amélie Robert & Inès Desanlis & Ryan Killoran & Sophie Ehresmann & Marie-Pier Thibault & David Barford & Kodi S. Ravichandran & Martin Sauvageau & Matthew J. Smith & Marie, 2022. "Biasing the conformation of ELMO2 reveals that myoblast fusion can be exploited to improve muscle regeneration," Nature Communications, Nature, vol. 13(1), pages 1-15, December.

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