title: Hollow silica nanoparticles loaded with hydrophobic phthalocyanine for near-infrared photodynamic and photothermal combination therapy.
abstract: Owing to the convenience and minimal invasiveness, phototherapy, including photodynamic therapy (PDT) and photothermal therapy (PTT), is emerging as a powerful technique for cancer treatment. To date, however, few examples of combination PDT and PTT have been reported. Phthalocyanine (Pc) is a class of traditional photosensitizer for PDT, but its bioapplication is limited by high hydrophobicity. In this present study, hollow silica nanospheres (HSNs) were employed to endow the hydrophobic phthalocyanine with water-dispersity, and the as-prepared hollow silica nanoparticles loaded with hydrophobic phthalocyanine (Pc@HSNs) exhibits highly efficient dual PDT and PTT effects. In vitro and in vivo experimental results clearly indicated that the dual phototherapeutic effect of Pc@HSNs can kill cancer cells or eradicate tumor tissues. This multifunctional nanomedicine may be useful for PTT/PDT treatment of cancer.
authors.affiliation: Department of Chemistry & State Key Laboratory of Molecular Engineering of Polymers, Fudan University, 220 Handan Road, Shanghai 200433, PR China.
authors.forename: Juanjuan
authors.initials: J
authors.lastname: Peng
authors.forename: Lingzhi
authors.initials: L
authors.lastname: Zhao
authors.forename: Xingjun
authors.initials: X
authors.lastname: Zhu
authors.forename: Yun
authors.initials: Y
authors.lastname: Sun
authors.forename: Wei
authors.initials: W
authors.lastname: Feng
authors.forename: Yanhong
authors.initials: Y
authors.lastname: Gao
authors.forename: Liya
authors.initials: L
authors.lastname: Wang
authors.forename: Fuyou
authors.initials: F
authors.lastname: Li
mesh_terms: D000818:Animals; D045744:Cell Line, Tumor; D002470:Cell Survival; D003131:Combined Modality Therapy / Q000379:methods*; D004195:Disease Models, Animal; D057927:Hydrophobic and Hydrophilic Interactions; D007211:Indoles / Q000494:pharmacology*; D054833:Isoindoles; D008297:Male; D051379:Mice; D008807:Mice, Inbred BALB C; D018613:Microscopy, Confocal; D046529:Microscopy, Electron, Transmission; D053758:Nanoparticles / Q000737:chemistry*; D054118:Nanospheres / Q000737:chemistry; D009369:Neoplasms / Q000188:drug therapy; D010778:Photochemotherapy / Q000379:methods; D017319:Photosensitizing Agents / Q000494:pharmacology*; D010789:Phototherapy / Q000379:methods; D017382:Reactive Oxygen Species; D012822:Silicon Dioxide / Q000737:chemistry*
chemical_list: D007211:Indoles; D054833:Isoindoles; D017319:Photosensitizing Agents; D017382:Reactive Oxygen Species; D012822:Silicon Dioxide; C013647:phthalocyanine
keywords: Hollow silica nanoparticles; Photodynamic therapy; Photothermal therapy; Phthalocyanine