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Ma Y, Zhang Z, Sun F, Mesdom P, Ji X, Burckel P, Gasser G, Li MH. Red-Light-Responsive Polypeptoid Nanoassemblies Containing a Ruthenium(II) Polypyridyl Complex with Synergistically Enhanced Drug Release and ROS Generation for Anticancer Phototherapy. Biomacromolecules 2023; 24:5940-5950. [PMID: 38033171 DOI: 10.1021/acs.biomac.3c00949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2023]
Abstract
Polymer micelles/vesicles made of a red-light-responsive Ru(II)-containing block copolymer (PolyRu) are elaborated as a model system for anticancer phototherapy. PolyRu is composed of PEG and a hydrophobic polypeptoid bearing thioether side chains, 40% of which are coordinated with [Ru(2,2':6',2″-terpyridine)(2,2'-biquinoline)](PF6)2 via the Ru-S bond, resulting in a 67 wt % Ru complex loading capacity. Red-light illumination induces the photocleavage of the Ru-S bond and produces [Ru(2,2':6',2″-terpyridine)(2,2'-biquinoline)(H2O)](PF6)2. Meanwhile, ROS are generated under the photosensitization of the Ru complex and oxidize hydrophobic thioether to hydrophilic sulfoxide, causing the disruption of micelles/vesicles. During the disruption, ROS generation and Ru complex release are synergistically enhanced. PolyRu micelles/vesicles are taken up by cancer cells while they exhibit very low cytotoxicity in the dark. In contrast, they show much higher cytotoxicity under red-light irradiation. PolyRu micelles/vesicles are promising nanoassembly prototypes that protect metallodrugs in the dark but exhibit light-activated anticancer effects with spatiotemporal control for photoactivated chemotherapy and photodynamic therapy.
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Affiliation(s)
- Yandong Ma
- Chimie ParisTech, CNRS, Institut de Recherche de Chimie Paris, PSL University, 75005 Paris, France
| | - Zhihua Zhang
- Chimie ParisTech, CNRS, Institut de Recherche de Chimie Paris, PSL University, 75005 Paris, France
| | - Fan Sun
- Chimie ParisTech, CNRS, Institut de Recherche de Chimie Paris, PSL University, 75005 Paris, France
| | - Pierre Mesdom
- Chimie ParisTech, Laboratory for Inorganic Chemistry, CNRS, Institute of Chemistry for Life and Health Sciences, PSL University, 75005, Paris, France
| | - Xin Ji
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Engineering Technology Research Center of Drug Carrier of Guangdong, Department of Biomedical Engineering, Jinan University, Guangzhou 510632, China
| | - Pierre Burckel
- CNRS, Institut de Physique du Globe de Paris, Université Paris-Cité, 75005 Paris, France
| | - Gilles Gasser
- Chimie ParisTech, Laboratory for Inorganic Chemistry, CNRS, Institute of Chemistry for Life and Health Sciences, PSL University, 75005, Paris, France
| | - Min-Hui Li
- Chimie ParisTech, CNRS, Institut de Recherche de Chimie Paris, PSL University, 75005 Paris, France
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Zhang N, Trépout S, Chen H, Li MH. AIE Polymer Micelle/Vesicle Photocatalysts Combined with Native Enzymes for Aerobic Photobiocatalysis. J Am Chem Soc 2023; 145:288-299. [PMID: 36562998 DOI: 10.1021/jacs.2c09933] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Biocatalytic transformation has attracted increasing attention in the green synthesis of chemicals due to the diversity of enzymes, their high catalytic activities and specificities, and environmentally benign conditions. Most redox enzymes in nature are dependent on nicotinamide cofactors like β-nicotinamide adenine dinucleotide (NAD+)/reduced nicotinamide adenine dinucleotide (NADH). The use of solar energy, especially visible light, in the regeneration of cofactors through the combination of photocatalysis and biocatalysis provides an extraordinary opportunity to make complete green processes. However, the combination of photocatalysts and enzymes has been challenged by the rapid degradation and deactivation of the enzymatic material by photogenerated reactive oxygen species (ROS). Here, we design core-shell structured polymer micelles and vesicles with aggregation-induced emission (AIE) as visible-light-mediated photocatalysts for highly stable and recyclable photobiocatalysis under aerobic conditions. NAD+ from NADH can be efficiently regenerated by the photoactive hydrophobic core of polymer micelles and the hydrophobic membrane of polymer vesicles, while the enzymatic material (glucose 1-dehydrogenase) is screened from the attack of photogenerated ROS by the hydrophilic surface layer of polymer colloids. After at least 10 regeneration cycles, the enzyme keeps its active state; meanwhile, polymer micelles and vesicles maintain their photocatalytic activity. These polymer colloids show the potential to be developed for the implementation of industrially relevant photobiocatalytic systems.
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Affiliation(s)
- Nian Zhang
- Institut de Recherche de Chimie Paris, UMR8247, CNRS, Chimie ParisTech, PSL Université Paris, 11 rue Pierre et Marie Curie, 75005 Paris, France
| | - Sylvain Trépout
- Institut Curie, Inserm US43, CNRS UMS2016, Université Paris-Saclay, Centre Universitaire, Bât. 101B-110-111-112, Rue Henri Becquerel, CS 90030, 91401 Orsay Cedex, France
| | - Hui Chen
- Institut de Recherche de Chimie Paris, UMR8247, CNRS, Chimie ParisTech, PSL Université Paris, 11 rue Pierre et Marie Curie, 75005 Paris, France
| | - Min-Hui Li
- Institut de Recherche de Chimie Paris, UMR8247, CNRS, Chimie ParisTech, PSL Université Paris, 11 rue Pierre et Marie Curie, 75005 Paris, France
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