PUBLICATION

Targeting Tumor-Associated Macrophages by MMP2-Sensitive Apoptotic Body-Mimicking Nanoparticles

Authors
Liu, Y., Wang, J., Zhang, J., Marbach, S., Xu, W., Zhu, L.
ID
ZDB-PUB-201120-81
Date
2020
Source
ACS applied materials & interfaces   12(47): 52402-52414 (Journal)
Registered Authors
Keywords
apoptotic body, drug delivery, matrix metalloproteinase 2, nanoparticles, phosphatidylserine, tumor-associated macrophages
MeSH Terms
  • Animals
  • Antineoplastic Agents/chemistry
  • Antineoplastic Agents/pharmacology
  • Antineoplastic Agents/therapeutic use
  • Apoptosis*/drug effects
  • Cell Line, Tumor
  • Dasatinib/chemistry
  • Dasatinib/pharmacology
  • Dasatinib/therapeutic use
  • Female
  • Humans
  • Larva/metabolism
  • Matrix Metalloproteinase 2/metabolism*
  • Mice
  • Mice, Inbred BALB C
  • Nanoparticles/chemistry*
  • Nanoparticles/metabolism
  • Nanoparticles/toxicity
  • Neoplasms/drug therapy
  • Neoplasms/pathology
  • Phagocytosis
  • Phosphatidylserines/chemistry
  • Polyethylene Glycols/chemistry
  • RAW 264.7 Cells
  • Tissue Distribution
  • Tumor-Associated Macrophages/cytology
  • Tumor-Associated Macrophages/drug effects
  • Tumor-Associated Macrophages/metabolism*
  • Zebrafish/growth & development
  • Zebrafish/metabolism
PubMed
33169982 Full text @ ACS Appl. Mater. Interfaces
Abstract
Tumor-associated macrophages (TAMs), a major player in the tumor microenvironment, were recently recognized as a potential therapeutic target. To date, very few anticancer drugs or drug-delivery systems were designed to target the TAMs. Inspired by the "eat me" signal, phosphatidylserine (PS), mediated phagocytic clearance of apoptotic bodies, in this study, the matrix metalloproteinase 2 (MMP2)-sensitive PS-modified nanoparticles were developed. In the design, the PS is externalized to the nanoparticles' surface only when the nanoparticles reach the MMP2-overexpressing tumor site, allowing for the TAM-specific phagocytosis. The nanoparticles' excellent macrophage/TAM selectivity was observed in various biological models, including various cell lines, coculture cells, coculture cell spheroids, zebrafish, and tumor-bearing mice. The nanoparticles' TAM specificity remarkably enhanced the TAM depletion capability of the loaded model drug, dasatinib, resulting in the improved anticancer activity. The MMP2-sensitive apoptotic body-mimicking nanoparticles might be a promising delivery tool for TAM-centered cancer diagnoses and treatments.
Genes / Markers
Figures
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Antibodies
Orthology
Engineered Foreign Genes
Mapping