Cited by 429Extracellular vesicles in diseaseNanoparticle-Based Drug DeliveryNanoplatforms for cancer theranostics

Macrophage-derived exosome-mimetic hybrid vesicles for tumor targeted drug delivery

Rayamajhi, Sagar, Nguyen, Tuyen Duong Thanh, Marasini, Ramesh, Aryal, Santosh·2019·Acta Biomaterialia

Abstract

Extracellular vesicles (EVs) are phospholipid and protein constructs which are continuously secreted by cells in the form of smaller (30-200 nm) and larger (micron size) particles. While all of these vesicles are called as EVs, the smaller size are normally called as exosomes. Small EVs (sEVs) have now been explored as a potential candidate in therapeutics delivery owing to their endogenous functionality, intrinsic targeting property, and ability to cooperate with a host defense mechanism. Considering these potentials, we hypothesize that immune cell-derived sEVs can mimic immune cell to target cancer. However, different sEVs isolation technique reported poor yield and loss of functional properties. To solve this problem, herein we hybridized sEVs with synthetic liposome to engineer vesicles with size less than 200 nm to mimic the size of exosome and named as hybrid exosome (HE). To achieve this goal, sEVs from mouse macrophage was hybridized with synthetic liposome to engineer HE. The fluorescence-based experiment confirmed the successful hybridization process yielding HE with the size of 177 ± 21 nm. Major protein analysis from Blot techniques reveal the presence of EV marker proteins CD81, CD63, and CD9. Differential cellular interaction of HE was observed when treated with normal and cancerous cells thereby supporting our hypothesis. Moreover, a water-soluble doxorubicin was loaded in HE. Drug-loaded HE showed enhanced toxicity against cancer cells and pH-sensitive drug release in acidic condition, benefiting drug delivery to acidic cancer environment. These results suggest that the engineered HE would be an exciting platform for tumor-targeted drug delivery. STATEMENT OF SIGNIFICANCE: Extracellular vesicles (EVs) are phospholipid and protein constructs which are continuously secreted by cells in the human body. These vesicles can efficiently deliver their parental biomolecules to the recipient cells and assist in intracellular communication without a direct cell-to-cell contact. Moreover, they have the ability to perform some of the molecular task similar to that of its parent cells. For example, exosome derived from immune cells can seek for diseased and/or inflammatory cells by reading the cell surface proteins. However, different EVs isolation techniques reported poor yield and loss of functional properties. Therefore, to overcome this limitation, we herein propose to re-engineer immuno-exosome with a synthetic liposome as a refined biomimetic nanostructure for the delivery of doxorubicin (clinical drug) for breast cancer treatment.

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Crossref · 10.1016/j.actbio.2019.05.054

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Authors
Rayamajhi, S., Nguyen, T. D. T., Marasini, R., & Aryal, S.
Affiliations
Kansas State University (US)
Corresponding author
Aryal, Santosh
Venue
Acta Biomaterialia
Publisher
Elsevier BV
Published
2019-08
Volume
94
Pages
482-494
ISSN
1742-7061 (ISSN-L)
OpenAlex
W2946585494
Cited by
429
References
72
Citations by year
2026: 41 · 2025: 59 · 2024: 88 · 2023: 72 · 2022: 72 · 2021: 53 · 2020: 42 · 2019: 2
FWCI
14.01
Type
journal article
Language
en
Open access
closed
Locations
  • Acta Biomaterialia (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Johnson Cancer Research Center
  • Nanotechnology Innovative Centre of Kansas State
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Extracellular vesicles in disease
  • Physical Sciences › Materials Science › Biomaterials › Nanoparticle-Based Drug Delivery
  • Physical Sciences › Engineering › Biomedical Engineering › Nanoplatforms for cancer theranostics
Keywords
extracellular vesicles, macrophage-derived vesicles, anticancer drug delivery, doxorubicin, pH-responsive drug release, breast cancer, biomimetic nanostructures, vesicle isolation
MeSH terms
Animals, Macrophages, Neoplasms, Drug Delivery Systems, Biomimetic Materials, NIH 3T3 Cells, Cell Line, Tumor, Mice, Exosomes

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