Bio-engineered nano-vesicles for IR820 delivery: a therapy platform for cancer by surgery and photothermal therapy

Nanoscale. 2022 Feb 17;14(7):2780-2792. doi: 10.1039/d1nr05601h.

Abstract

Long-term unsolved health problems from pre-/intra-/postoperative complications and thermal ablation complications pose threats to liver-cancer patients. To reduce the threats, we propose a multimodal-imaging guided surgical navigation system and photothermal therapy strategy to improve specific labeling, real-time monitoring and effective treatment of hepatocellular carcinoma. Using a bioengineering approach, G-Nvs@IR820, a kind of human-cell-membrane nano-vesicle, was generated with growth arrest-specific 6 (Gas6) expressed on the membrane and with near-infrared absorbing dye (IR820) loaded into it, which is proven to be an effective nanoparticle-drug-delivery system for Axl-overexpressing hepatocellular carcinoma. G-Nvs@IR820 shows excellent features in vitro and in vivo. As Gas6 binds to Axl specifically, G-Nvs@IR820 has good targeting ability to the tumor site and also has a good ability to guide the further accurate obliteration of carcinoma from adjacent normal tissue in surgery with its highly resolved fluorescence/photoacoustic/surgical-navigation signals. Moreover, the G-Nvs@IR820 represented a new perspective for photothermal therapy. Briefly, Nvs@IR820 was synthesized at a gram scale with high affinity, specificity, and safety. It has promising potential in clinical application for IGS and PTT in Axl-overexpressing hepatoma carcinoma.

MeSH terms

  • Carcinoma, Hepatocellular* / drug therapy
  • Cell Line, Tumor
  • Humans
  • Hyperthermia, Induced*
  • Liver Neoplasms* / drug therapy
  • Nanoparticles*
  • Phototherapy / methods
  • Photothermal Therapy