ArticleJournal of extracellular vesicles2024
Extracellular vesicle isolation methods identify distinct HIV-1 particles released from chronically infected T-cells.
Article in Journal of extracellular vesicles, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
6 citing papers in PubMed.
- Proteomic profiling of single extracellular vesicles reveals association of CD31Frontiers in immunology · 2026Article
- Extracellular vesicles and viruses share a nuclear entry pathway in cancer and infection.Frontiers in cell and developmental biology · 2026Article
- Characterization of HIV-1 Particles Co-Purified With Three Extracellular Vesicle Subtypes From the Raji CD4 DCIR Cell Line, a Hybrid Model of CD4 T Cells and Dendritic Cells.Journal of extracellular biology · 2025Article
- Extracellular Vesicles for Clinical Diagnostics: From Bulk Measurements to Single-Vesicle Analysis.ACS nano · 2025Review
- Article
- Extracellular vesicle isolation methods identify distinct HIV-1 particles released from chronically infected T-cells.Journal of extracellular vesicles · 2024Article
Corrections and comments
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Authors and funding
11 authors.
Funding
Abstract
The current study analyzed the intersecting biophysical, biochemical, and functional properties of extracellular particles (EPs) with the human immunodeficiency virus type-1 (HIV-1) beyond the currently accepted size range for HIV-1. We isolated five fractions (Frac-A through Frac-E) from HIV-infected cells by sequential differential ultracentrifugation (DUC). All fractions showed a heterogeneous size distribution with median particle sizes greater than 100 nm for Frac-A through Frac-D but not for Frac-E, which contained small EPs with an average size well below 50 nm. Synchronized and released cultures contained large infectious EPs in Frac-A, with markers of amphisomes and viral components. Additionally, Frac-E uniquely contained EPs positive for CD63, HSP70, and HIV-1 proteins. Despite its small average size, Frac-E contained membrane-protected viral integrase, detectable only after SDS treatment, indicating that it is enclosed in vesicles. Single particle analysis with dSTORM further supported these findings as CD63, HIV-1 integrase, and the viral surface envelope (Env) glycoprotein (gp) colocalized on the same Frac-E particles. Surprisingly, Frac-E EPs were infectious, and infectivity was significantly reduced by immunodepleting Frac-E with anti-CD63, indicating the presence of this protein on the surface of infectious small EPs in Frac-E. To our knowledge, this is the first time that extracellular vesicle (EV) isolation methods have identified infectious small HIV-1 particles (
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