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Updated: May 11, 2026
08:06
Study of Phagolysosome Biogenesis in Live Macrophages
Published on: March 11, 2014
Phagosome maturation: going through the acid test
Jason M Kinchen1, Kodi S Ravichandran
1Beirne B. Carter Center for Immunology Research and the Department of Microbiology, University of Virginia, Charlottesville, Virginia 22902, USA. kinchen@virginia.edu
Nature Reviews. Molecular Cell Biology
|September 25, 2008
Summary
Phagosome maturation involves trafficking particles into acidified structures for degradation. A distinct pathway for apoptotic cell phagosome maturation suggests unique cellular machinery is involved.
Area of Science:
- Cell Biology
- Immunology
Background:
- Phagosome maturation is crucial for degrading internalized particles like bacteria and apoptotic cells.
- Numerous proteins are involved in phagosome maturation, with varying roles depending on particle type.
Purpose of the Study:
- To identify and characterize the protein machinery controlling phagosome maturation, particularly for apoptotic cells.
- To investigate if a distinct pathway exists for the maturation of phagosomes containing apoptotic cells.
Main Methods:
- Proteomic characterization of phagosomes.
- Studies in model organisms and mammals.
Main Results:
- Identification of numerous candidate proteins involved in phagosome maturation.
- Discovery of a specific protein subset forming the first identified pathway for apoptotic cell phagosome maturation.
Conclusions:
- A distinct cellular machinery, separate from receptor-mediated endocytosis, is likely involved in phagosome maturation.
- This finding advances our understanding of cellular degradation pathways and immune responses.
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