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Wu Y, Zhu J, Li Q, Yang M, Sun X, Zheng G, Du F, Zhang M. Fabrication of manganese-coordinated polyphenol carbon dots for photothermal therapy and immune activation. Cancer Nanotechnol 2022. [DOI: 10.1186/s12645-022-00136-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
Nanoparticle-based photothermal therapy (PTT) is capable of inducing immunogenic cell death (ICD) and eradicating local tumor via hyperthermia. However, it can hardly prevent tumor recurrence and metastasis owing to inadequate immune activation.
Results
To this end, manganese-coordinated polyphenol carbon dots (MP-CDs) were synthesized by hydrothermal carbonization and metal–polyphenol coordination. This prepared MP-CDs had ultra-small particle size of 5 nm, excellent optical performance, good dispersibility in water and favorable biocompatibility. Under 808 nm near-infrared laser irradiation, the MP-CDs with high photothermal conversion efficiency could kill tumor cells and induce the release of damage-associated molecular patterns (DAMPs) from tumor cells. Notably, the MP-CDs can promote the maturation and antigen presentation ability of dendritic cells (DCs) via manganese-mediated immune activation.
Conclusion
The present work offers a versatile strategy to integrate functional metal into CDs via metal–polyphenol coordination for photothermal/immune therapy.
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Wu L, Wu Y, Jingjin L, Liu S, Li Q, Yang M, Zhang M, Ji Q, Zhang F, Du F. Calcium and phosphorus co-doped carbon dots enhance osteogenic differentiation for calvarial defect repair in situ. Biomed Mater 2022; 17:055007. [PMID: 35835088 DOI: 10.1088/1748-605x/ac812f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Accepted: 07/14/2022] [Indexed: 11/12/2022]
Abstract
Calvarial bone defect remains a clinical challenge due to the lack of efficient osteo-inductive agent. Herein, a novel calcium and phosphorus codoped carbon dot (Ca/P-CD) for bone regeneration was synthesized using phosphoethanolamine and calcium gluconate as precursors. The resultant Ca/P-CDs exhibited ultra-small size, stable excitation dependent emission spectra and favorable dispersibility in water. Moreover, Ca/P-CDs with good biocompatibility rapidly entered the cytoplasm through endocytosis and increased the expression of bone differentiation genes. After mixing with temperature-sensitive hydrogel, Ca/P-CDs were injectedin situinto calvarial defect and promoted the repair of bone injury. These Ca/P-CDs provide a new treatment method for the bone repair and should be expended the application in the biomedical fields.
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Affiliation(s)
- Lin Wu
- Jiangsu Key Laboratory of Oral Diseases, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing 212000, People's Republic of China
- Department of Stomatology, Affiliated People's Hospital of Jiangsu University, Zhenjiang 212000, People's Republic of China
| | - Yunchao Wu
- Clinical Laboratory, The Third People' s Hospital of Changzhou, Changzhou 213001, People's Republic of China
| | - Liu Jingjin
- School of Medicine, Jiangsu University, Zhenjiang 212013, People's Republic of China
| | - Suwan Liu
- School of Medicine, Jiangsu University, Zhenjiang 212013, People's Republic of China
| | - Qianzhe Li
- School of Medicine, Jiangsu University, Zhenjiang 212013, People's Republic of China
| | - Mengyu Yang
- School of Medicine, Jiangsu University, Zhenjiang 212013, People's Republic of China
| | - Miaomiao Zhang
- School of Medicine, Jiangsu University, Zhenjiang 212013, People's Republic of China
| | - Qing Ji
- School of Medicine, Jiangsu University, Zhenjiang 212013, People's Republic of China
| | - Feimin Zhang
- Jiangsu Key Laboratory of Oral Diseases, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing 212000, People's Republic of China
| | - Fengyi Du
- School of Medicine, Jiangsu University, Zhenjiang 212013, People's Republic of China
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