Biomimetic Persistent Luminescent Nanoplatform for Autofluorescence-Free Metastasis Tracking and Chemophotodynamic Therapy

• Published in: Analytical chemistry (Washington) Vol. 90; no. 6; pp. 4188 - 4195
• Main Authors: Li, Yu-Jie, Yang, Cheng-Xiong, Yan, Xiu-Ping
• Format: Journal Article
• Language: English
• Published: United States American Chemical Society 20.03.2018
• Subjects: Animals; Antibiotics, Antineoplastic - administration & dosage; Antibiotics, Antineoplastic - therapeutic use; Biomimetics; Cancer; Cell Line, Tumor; cell membranes; Chemistry; Chemotherapy; death; Diagnosis; Doxorubicin; Doxorubicin - administration & dosage; Doxorubicin - therapeutic use; Drug delivery systems; drug therapy; early diagnosis; Female; image analysis; Interlayers; Light sources; Luminescence; Luminescent Agents - chemistry; Mammary Neoplasms, Animal - diagnostic imaging; Mammary Neoplasms, Animal - drug therapy; Mammary Neoplasms, Animal - pathology; metastasis; Mice; Mice, Inbred BALB C; Mice, Nude; Mortality; Nanoparticles; Nanoparticles - chemistry; neoplasm cells; Neoplasm Metastasis - diagnostic imaging; Neoplasm Metastasis - drug therapy; Neoplasm Metastasis - pathology; neoplasms; Optical Imaging - methods; patients; people; Photochemotherapy - methods; photosensitizing agents; Photosensitizing Agents - administration & dosage; Photosensitizing Agents - therapeutic use; Silica; Silicon dioxide; Singlet oxygen; Theranostic Nanomedicine - methods; Tracking
• ISSN: 0003-2700; 1520-6882; 1520-6882
• DOI: 10.1021/acs.analchem.8b00311

Metastasis is the main cause of death in people with cancer. Early diagnosis and targeted therapy for metastasis is crucial for the survival of the cancer patients. However, metastasis is hard to trace for its small size, dispersed distribution and unvascularized anatomy. Here we report a biomimetic persistent luminescent nanoplatform for noninvasive high-sensitive diagnosis and 808 nm laser controlled photodynamics assisted chemotherapy of metastasis. The nanoplatform is composed of a photosensitizer functionalized persistent luminescent nanoparticle core, a doxorubicin loaded hollow silica interlayer and a cancer cell membrane shell for effective metastasis theranostic. The cancer cell membrane shell prevents drug leakage and endows the nanoplatform with targeting ability to metastasis. The reactivatable persistent luminescence of persistent luminescent nanoparticles not only enables long-term in vivo metastasis tracking, but also provides internal light source for singlet oxygen generation to kill cancer cells and further break the membrane shell for drug release. This work provides a promising strategy to develop persistent luminescence imaging guided theranostic nanoplatforms for early metastasis.