ArticleCancer medicine2024
Elimination of radiation-induced senescent cancer cells and stromal cells in vitro by near-infrared photoimmunotherapy.
Article in Cancer medicine, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Recent advances in near-infrared dye conjugates for near-infrared photoimmunotherapy (NIR-PIT): enhancing therapeutic efficacy and immune mechanisms.RSC chemical biology · 2026Review
- Senolytic-loaded asymmetric wound dressing for targeted senescent cell clearance in diabetic wound healing.Materials today. Bio · 2026Article
- Efficacy of EGFR Targeting IR700-Related Photoimmunotherapy in Preventing Growth of Cancer Cells-A Systematic Review.Cancer management and research · 2025Review
- Elimination of radiation-induced senescent cancer cells and stromal cells in vitro by near-infrared photoimmunotherapy.Cancer medicine · 2024Article
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4 authors.
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Abstract
introductionTherapy-induced senescent cancer and stromal cells secrete cytokines and growth factors to promote tumor progression. Therefore, senescent cells may be novel targets for tumor treatment. Near-infrared photoimmunotherapy (NIR-PIT) is a highly tumor-selective therapy that employs conjugates of a molecular-targeting antibody and photoabsorber. Thus, NIR-PIT has the potential to be applied as a novel senolytic therapy. This study aims to investigate the efficacy of NIR-PIT treatment on senescent cancer and stromal cells.
methodsTwo cancer cell lines (human lung adenocarcinoma A549 cells and human pancreatic cancer MIA PaCa-2 cells) and two normal cell lines (mouse fibroblast transfected with human epidermal growth factor receptor 2 [HER2] cells and human fibroblast WI38 cells) were used. The cytotoxicity of NIR-PIT was evaluated using anti-epidermal growth factor receptor (EGFR) antibody panitumumab and anti-HER2 antibody transtuzumab.
resultsCellular senescence was induced in A549 and MIA PaCa-2 cells by 10 Gy γ-irradiation. The up-regulation of cellular senescence markers and characteristic morphological changes in senescent cells, including enlargement, flattening, and multinucleation, were observed in cancer cells after 5 days of γ-irradiation. Then, NIR-PIT targeting EGFR was performed on these senescent cancer cells. The NIR-PIT induced morphological changes, including bleb formation, swelling, and the inflow of extracellular fluid, and induced a significant decrease in cellular viability. These results suggested that NIR-PIT may induce cytotoxicity using the same mechanism in senescent cancer cells. In addition, similar morphological changes were also induced in radiation-induced senescent 3T3-HER2 fibroblasts by NIR-PIT targeting human epidermal growth factor receptor 2.
conclusionNIR-PIT eliminates both senescent cancer and stromal cells in vitro suggesting it may be a novel strategy for tumor treatment.
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