From biomaterials to biotherapy: cuttlefish ink with protoporphyrin IX nanoconjugates for synergistic sonodynamic-photothermal therapy
JOURNAL OF MATERIALS CHEMISTRY B(2024)
Abstract
Biologically produced nanomaterials capable of therapeutic purposes have received increasing interest in tumor therapy because of their intrinsic biocompatibility. In this study, we made cuttlefish ink (extracted from cuttlefish) and protoporphyrin IX (PpIX) nanoconjugates (CIPs) where PpIX was an endogenous organic compound. In the case of CIPs, PpIX could be triggered by ultrasound (US) for sonodynamic therapy (SDT), and the cuttlefish ink could be excited by a near-infrared laser for photothermal therapy (PTT). Thereafter, tumor growth was greatly inhibited through synergistic SDT-PTT in comparison to single SDT or PTT. In addition, in vivo administration of CIPs showed no noticeable side effects for mouse blood and chief organs, providing an effective strategy for developing biologically produced biomaterials and using them for biotherapy. Bio-inspired CIPs are reported as biocompatible and efficient SDT-PTT nanoagents for tumor therapy, which would inspire the development of other novel nanoagents modified from biomaterials and their utilization for biotherapy.
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