Complement-Related Regulates Autophagy in Neighboring Cells

UMMS Affiliation

Department of Molecular, Cell and Cancer Biology; UMass Metabolic Network



Document Type



Biochemistry | Cell Biology | Cellular and Molecular Physiology | Molecular Biology


Autophagy degrades cytoplasmic components and is important for development and human health. Although autophagy is known to be influenced by systemic intercellular signals, the proteins that control autophagy are largely thought to function within individual cells. Here, we report that Drosophila macroglobulin complement-related (Mcr), a complement ortholog, plays an essential role during developmental cell death and inflammation by influencing autophagy in neighboring cells. This function of Mcr involves the immune receptor Draper, suggesting a relationship between autophagy and the control of inflammation. Interestingly, Mcr function in epithelial cells is required for macrophage autophagy and migration to epithelial wounds, a Draper-dependent process. This study reveals, unexpectedly, that complement-related from one cell regulates autophagy in neighboring cells via an ancient immune signaling program.

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Citation: Cell. 2017 Jun 29;170(1):158-171.e8. doi: 10.1016/j.cell.2017.06.018. Link to article on publisher's site

Related Resources

Link to Article in PubMed


autophagy, complement, immune-receptor signaling, programmed cell death

PubMed ID