Bacterial outer membrane vesicles suppress tumor by interferon-γ-mediated antitumor response

Gram-negative bacteria actively secrete outer membrane vesicles, spherical nano-meter-sized proteolipids enriched with outer membrane proteins, to the surroundings. Outer membrane vesicles have gained wide interests as non-living complex vaccines or delivery vehicles. However, no study has used outer membrane vesicles in treating cancer thus far. Here we investigate the potential of bacterial outer membrane vesicles as therapeutic agents to treat cancer via immunotherapy. Our results show remarkable capability of bacterial outer membrane vesicles to effectively induce long-term antitumor immune responses that can fully eradicate established tumors without notable adverse effects. Moreover, systematically…

• NR
  National Research Foundation
• MO
  Ministry of Science, ICT and Future Planning

  Awards: CRC-15-02-KRIBB, 2015R1A2A1A10055961
• KR
  Korea Research Institute of Bioscience and Biotechnology
• NR
  National Research Foundation of Korea

  Awards: 2015R1A2A1A10055961, CRC-15-02-KRIBB