Heterogeneity of Extracellular Vesicles and Non‐Vesicular Nanoparticles in Glioblastoma
It is increasingly clear that intercellular communication is largely mediated by lipid-bilayer, membrane-bound extracellular vesicles (EVs) and amembranous, non-vesicular extracellular particles (NVEPs), including exomeres and the recently identified supermeres. To elucidate the cargo and functional roles of these carriers, we performed a comprehensive analysis of their lipid, protein and RNA content in the context of colorectal cancer and glioblastoma (GBM). Our results demonstrate that EVs exhibit distinct density profiles correlated with specific biomolecular signatures. Moreover, EVs and NVEPs display notable differences in their protein and RNA composition, which confer distinct functional attributes. Supermeres are notably enriched in components involved in extracellular matrix remodeling and possess the ability to cross the blood-brain barrier, a process dependent on their intact structure and RNA content. Once in the central nervous system (CNS), they preferentially engage with microglia and suppress TGFβ1 expression, suggesting a role in modulating microglial immune activity. Furthermore, systemically administered exogenous supermeres selectively accumulate in GBM tumors in vivo. Together, these findings highlight supermeres as a promising vehicle for delivering therapeutics to the CNS and brain tumors.
Authors
- Dennis K. Jeppesen (ORCID: https://orcid.org/0000-0002-7480-8083)
- James N. Higginbotham
- Qin Zhang (ORCID: https://orcid.org/0000-0001-6700-1612)
- Jeffrey L. Franklin (ORCID: https://orcid.org/0000-0002-7111-4449)
- Yuanhua Cheng (ORCID: https://orcid.org/0000-0003-4093-5006)
- Kasey C. Vickers (ORCID: https://orcid.org/0000-0001-5643-3102)
- João A. Paulo (ORCID: https://orcid.org/0000-0002-4291-413X)
- Daniel T. Chiu (ORCID: https://orcid.org/0000-0003-2964-9578)
- Tuoye Xu (ORCID: https://orcid.org/0000-0002-4057-1241)
- Robert J. Coffey (ORCID: https://orcid.org/0000-0002-2180-3844)
- Xinyue Liu (ORCID: https://orcid.org/0000-0002-0934-4155)
- Oleg Tutanov (ORCID: https://orcid.org/0000-0003-4794-6322)
- Clark Massick (ORCID: https://orcid.org/0009-0009-4418-2006)
- Piyan Zhang (ORCID: https://orcid.org/0000-0002-2419-4837)
- Anna M. Krichevsky (ORCID: https://orcid.org/0000-0002-5080-5507)
- Yanhong Zhang (ORCID: https://orcid.org/0000-0002-3215-6670)
- Steve P. Gygi (ORCID: https://orcid.org/0000-0001-7626-0034)
- Al Charest
- A. N. Nguyen
Institutions
- Brigham and Women's Hospital (US)
- Beth Israel Deaconess Medical Center (US)
- Harvard University (US)
- Cancer Research Institute (US)
- Vanderbilt University (US)
- University of Washington (US)
- Vanderbilt University Medical Center (US)
Publication Details
- Journal
- Journal of Extracellular Vesicles
- Published
- 2025-10-01
- DOI
- https://doi.org/10.1002/jev2.70168
- Citations
- 3
- Primary Topic
- Extracellular vesicles in disease
- Type
- article
- Field-Weighted Citation Impact
- 2.42
Funders
- National Institutes of Health
- National Cancer Institute