ArticleMolecular biology of the cell2000
Rab7: a key to lysosome biogenesis.
Article in Molecular biology of the cell, 2000. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 526 papers.
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Who cites it
526 citing papers in PubMed, 1,081 citations in OpenAlex.
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- Neuroinflammation-induced downregulation of RAB7 in murine astrocytes disrupts endo-lysosomal homeostasis and induces astrogliosis.Cell communication and signaling : CCS · 2026Article
- Endosomal maturation is controlled by the trimeric Bulli-Mon1-Ccz1 Rab7 GEF complex and the Rab5 GTPase-activating protein GAPsec.Journal of cell science · 2026Article
- YY1 nitration participates in DbCM cardiomyocyte lipotoxicity by inhibiting ANXA3-induced microlipophagy.Redox biology · 2026Article
- TBK1 activity regulates the directionality of axonal transport of signalling endosomes.Life science alliance · 2026Article
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- Rethinking Disease Control in Aquaculture Invertebrates: Harnessing Innate Immunity in Molluscs and Crustaceans.Pathogens (Basel, Switzerland) · 2026Review
- Peripheral lysosome levels dictate mTORC1 inactivation even when catabolically impaired.Cell communication and signaling : CCS · 2026Article
- Myofibroblast-Derived Extracellular Vesicles Drive Profibrotic Cascade Amplification in Pulmonary Fibrosis via the Nestin-Rab7 Axis.Journal of extracellular vesicles · 2026Article
- Cholesterol Deficiency Directs Autophagy-Dependent Secretion of Extracellular Vesicles.Journal of extracellular vesicles · 2026Article
- Long non-coding RNAs in the exosomal network: dual roles and clinical implications in cancer.Animal cells and systems · 2026Review
- Potential Role of Membrane Contact Sites in the Dysregulation of the Crosstalk Between Mitochondria and Lysosomes in Alzheimer's Disease.International journal of molecular sciences · 2025Review
- Mitomycin C Induces Autophagy in Human Tracheal Fibroblasts and Suppresses Their Growth.Laryngoscope investigative otolaryngology · 2025Article
- Comprehensive analysis of the microbial consortium in the culture of flagellate Monocercomonoides exilis.Environmental microbiome · 2025Article
- AlphaFold models of host-pathogen interactions elucidate the prevalence and structural modes of molecular mimicry.bioRxiv : the preprint server for biology · 2025Article
- Sorting nexin 10 regulates lysosomal ionic homeostasis via ClC-7 by controlling PI(3,5)P2.The Journal of cell biology · 2025Article
- Neuronal Deletion ofBiomolecules · 2025Article
466 more citing papers are in PubMed but not listed here.
Corrections and comments
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Authors and funding
5 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The molecular machinery behind lysosome biogenesis and the maintenance of the perinuclear aggregate of late endocytic structures is not well understood. A likely candidate for being part of this machinery is the small GTPase Rab7, but it is unclear whether this protein is associated with lysosomes or plays any role in the regulation of the perinuclear lysosome compartment. Previously, Rab7 has mainly been implicated in transport from early to late endosomes. We have now used a new approach to analyze the role of Rab7: transient expression of Enhanced Green Fluorescent Protein (EGFP)-tagged Rab7 wt and mutant proteins in HeLa cells. EGFP-Rab7 wt was associated with late endocytic structures, mainly lysosomes, which aggregated and fused in the perinuclear region. The size of the individual lysosomes as well as the degree of perinuclear aggregation increased with the expression levels of EGFP-Rab7 wt and, more dramatically, the active EGFP-Rab7Q67L mutant. In contrast, upon expression of the dominant-negative mutants EGFP-Rab7T22N and EGFP-Rab7N125I, which localized mainly to the cytosol, the perinuclear lysosome aggregate disappeared and lysosomes, identified by colocalization of cathepsin D and lysosome-associated membrane protein-1, became dispersed throughout the cytoplasm, they were inaccessible to endocytosed molecules such as low-density lipoprotein, and their acidity was strongly reduced, as determined by decreased accumulation of the acidotropic probe LysoTracker Red. In contrast, early endosomes associated with Rab5 and the transferrin receptor, late endosomes enriched in the cation-independent mannose 6-phosphate receptor, and the trans-Golgi network, identified by its enrichment in TGN-38, were unchanged. These data demonstrate for the first time that Rab7, controlling aggregation and fusion of late endocytic structures/lysosomes, is essential for maintenance of the perinuclear lysosome compartment.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.