期刊
JOURNAL OF BIOPHOTONICS
卷 10, 期 3, 页码 338-352出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/jbio.201600120
关键词
miniSOG; genetically encoded photosensitizer; reactive oxygen species (ROS); correlative light electron microscopy (CLEM); chromophore-assisted light inactivation (CALI); cell ablation; immunophotosensitizer; photodynamic therapy (PDT)
资金
- Russian Scientific Foundation [14-24-00106]
- Russian Federation [MK-6957.2016.4]
Genetically encoded photosensitizers (PSs), e.g. ROS generating proteins, correspond to a novel class of PSs that are highly desirable for biological and medical applications since they can be used in combination with a variety of genetic engineering manipulations allowing for precise spatio-temporal control of ROS production within living cells and organisms. In contrast to the commonly used chemical PSs, they can be modified using genetic engineering approaches and targeted to particular cellular compartments and cell types. Mini Singlet Oxygen Generator (miniSOG), a small flavoprotein capable of singlet oxygen production upon blue light irradiation, was initially reported as a high contrast probe for correlative light electron microscopy (CLEM) without the need of exogenous ligands, probes or destructive permeabilizing detergents. Further miniSOG was successfully applied for chromophore-assisted light inactivation (CALI) of proteins, as well as for photo-induced cell ablation in tissue cultures and in Caenorhabditis elegans. Finally, a novel approach of immunophotosensitizing has been developed, exploiting the specificity of mini-antibodies or selective scaffold proteins and photo-induced cytotoxicity of miniSOG, which is particularly promising for selective non-invasive photodynamic therapy of cancer (PDT) due to the spatial selectivity and locality of destructive action compared to other methods of oncotherapy.
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