Biogenesis and Function of Multivesicular Bodies
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The two major cellular sites for membrane protein degradation are the proteasome and the lysosome. Ubiquitin attachment is a sorting signal for both degradation routes. For lysosomal degradation, ubiquitination triggers the sorting of cargo proteins into the lumen of late endosomal multivesicular bodies (MVBs)/endosomes. MVB formation occurs when a portion of the limiting membrane of an endosome invaginates and buds into its own lumen. Intralumenal vesicles are degraded when MVBs fuse to lysosomes. The proper delivery of proteins to the MVB interior relies on specific ubiquitination of cargo, recognition and sorting of ubiquitinated cargo to endosomal subdomains, and the formation and scission of cargo-filled intralumenal vesicles. Over the past five years, a number of proteins that may directly participate in these aspects of MVB function and biogenesis have been identified. However, major questions remain as to exactly what these proteins do at the molecular level and how they may accomplish these tasks.
Extracellular Vesicles as Biomarkers in Infectious Diseases.
Cruz C, Sodawalla H, Mohanakumar T, Bansal S Biology (Basel). 2025; 14(2).
PMID: 40001950 PMC: 11851951. DOI: 10.3390/biology14020182.
Ge Y, Jiang L, Dong Q, Xu Y, Yam J, Zhong X J Clin Transl Hepatol. 2025; 13(2):143-161.
PMID: 39917466 PMC: 11797817. DOI: 10.14218/JCTH.2024.00302.
Recycling of endocytic BDNF through extracellular vesicles in astrocytes.
Han J, Park H Sci Rep. 2025; 15(1):2011.
PMID: 39814913 PMC: 11735857. DOI: 10.1038/s41598-025-86200-x.
Minimal domain peptides derived from enterocins exhibit potent antifungal activity.
Cohen D, Heidenreich T, Schorey J, Ross J, Hammers D, Vu H Front Fungal Biol. 2025; 5:1506315.
PMID: 39749139 PMC: 11693670. DOI: 10.3389/ffunb.2024.1506315.
Biogenesis and functional implications of extracellular vesicles in cancer metastasis.
Sekar S, Srikanth S, Mukherjee A, Gopalakrishnan A, Wanjari U, Vellingiri B Clin Transl Oncol. 2024; .
PMID: 39704958 DOI: 10.1007/s12094-024-03815-8.