Multifunctional liposome for photoacoustic/ultrasound imaging-guided chemo/photothermal retinoblastoma therapy.

Abstract

Retinoblastoma (RB) is a malignant intraocular neoplasm that occurs in children. Diagnosis and therapy are frequently delayed, often leading to metastasis, which necessitates effective imaging and treatment. In recent years, the use of nanoplatforms allowing both imaging and targeted treatment has attracted much attention. Herein, we report a novel nanoplatform folate-receptor (FR) targeted laser-activatable liposome termed FA-DOX-ICG-PFP@Lip, which is loaded with doxorubicin (DOX)/indocyanine green (ICG) and liquid perfluoropentane (PFP) for photoacoustic/ultrasound (PA/US) dual-modal imaging-guided chemo/photothermal RB therapy. The dual-modal imaging capability, photothermal conversion under laser irradiation, biocompatibility, and antitumor ability of these liposomes were appraised. The multifunctional liposome showed a good tumor targeting ability and was efficacious as a dual-modality contrast agent both in vivo and in vitro. When laser-irradiated, the liposome converted light energy to heat. This action caused immediate destruction of tumor cells, while simultaneously initiating PFP phase transformation to release DOX, resulting in both photothermal and chemotherapeutic antitumor effects. Notably, the FA-DOX-ICG-PFP@Lip showed good biocompatibility and no systemic toxicity was observed after laser irradiation in RB tumor-bearing mice. Hence, the FA-DOX-ICG-PFP@Lip shows great promise for dual-modal imaging-guided chemo/photothermal therapy, and may have significant value for diagnosing and treating RB.

• Authors: Meng Li, Xintong Bian, Xu Chen, Ningke Fan, Hongmi Zou, Yixi Bao, Yu Zhou
• Journal: Drug delivery (Drug Deliv) Vol. 29 Issue 1 Pg. 519-533 (Dec 2022) ISSN: 1521-0464 [Electronic] England
• PMID: 35156504 (Publication Type: Journal Article)

Chemical References

• Antibiotics, Antineoplastic
• Coloring Agents
• Drug Carriers
• Folic Acid Transporters
• Liposomes
• Doxorubicin
• Indocyanine Green

Topics

• Animals
• Antibiotics, Antineoplastic (administration & dosage, pharmacology)
• Cell Line, Tumor
• Cell Survival (drug effects)
• Chemistry, Pharmaceutical
• Coloring Agents (administration & dosage)
• Doxorubicin (administration & dosage, pharmacology)
• Drug Carriers (chemistry)
• Drug Liberation
• Folic Acid Transporters (drug effects)
• Humans
• Indocyanine Green (administration & dosage)
• Liposomes (chemistry)
• Mice
• Nanoparticles (chemistry)
• Particle Size
• Photoacoustic Techniques (methods)
• Photothermal Therapy (methods)
• Random Allocation
• Retinal Neoplasms (pathology)
• Retinoblastoma (pathology)
• Surface Properties
• Ultrasonography, Interventional (methods)
• Xenograft Model Antitumor Assays