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Ma LJ, Niu R, Wu X, Wu J, Zhou E, Xiao XP, Chen J. Quantitative evaluation of cellular internalization of polymeric nanoparticles within laryngeal cancer cells and immune cells for enhanced drug delivery. NANOSCALE RESEARCH LETTERS 2021; 16:40. [PMID: 33651256 PMCID: PMC7925719 DOI: 10.1186/s11671-021-03498-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Accepted: 02/16/2021] [Indexed: 05/29/2023]
Abstract
Clinical translation of poly (lactic-co-glycolic acid) (PLGA)-based nanomedicine is limited, partly because of the poor delivery efficiency resulting from non-specific phagocytosis by phagocytes. Understanding the nanoparticle interplay between cancer cells and immune cells remains largely elusive. In this study, a quantitative investigation on cellular internalization of fluorescent PLGA particles (100 nm, 500 nm, and 1 µm) against laryngeal carcinoma cells with or without monocytes/macrophages in monoculture or co-culture systems was first performed. PLGA particles at concentrations of 5-20 µg/mL show superior biocompatibility except for 500 nm and 1 µm PLGA particles at 20 µg/mL slightly reduce cell viability. Microscopic observation has discovered all three sizes of particles are effectively ingested by both cancer cells and macrophages; however, quantitative fluorescence examination has disclosed that the uptake index of cancer cells (mean intracellular particle fluorescence per cancer cell normalized to that of per macrophage) is substantially declined for all PLGA particles in co-cultures compared to that in monocultures (1.35-1.05, 1.50-0.59, and 1.4-0.47 for 100 nm, 500 nm, and 1 µm particles, respectively). Quantitative analysis using flow cytometry further confirmed the reduced uptake index of cancer cells in co-cultures, but higher particle counts per macrophage. It has also been found that the formation of multinucleated giant cells via the fusion of macrophages increased after PLGA treatment, which could be further exploited as a potential approach for tumor drug delivery. Overall, these findings provide new insights into the interaction of nanoparticle-immune-cancer cells, which may facilitate the application of PLGA-based nanocarriers for the treatment of laryngeal carcinoma.
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Affiliation(s)
- Li-Juan Ma
- Department of Otolaryngology Head/Neck Surgery, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, 410005, People's Republic of China.
| | - Ruichao Niu
- Department of Respiratory Medicine, Xiangya Hospital, Central South University, Hunan Province, Changsha, People's Republic of China
| | - Xi Wu
- Department of Otolaryngology Head/Neck Surgery, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, 410005, People's Republic of China
| | - Jun Wu
- Department of Otolaryngology Head/Neck Surgery, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, 410005, People's Republic of China
| | - En Zhou
- Department of Otolaryngology Head/Neck Surgery, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, 410005, People's Republic of China
| | - Xu-Ping Xiao
- Department of Otolaryngology Head/Neck Surgery, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, 410005, People's Republic of China
| | - Jie Chen
- Department of Respiratory Medicine, Xiangya Hospital, Central South University, Hunan Province, Changsha, People's Republic of China.
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Mechanistic investigation of cellular internalization routes of polymeric particles on breast cancer cells: relevance for drug delivery applications. APPLIED NANOSCIENCE 2020. [DOI: 10.1007/s13204-020-01376-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Vishwakarma SK, Lakkireddy C, Marjan T, Fatima A, Bardia A, Paspala SAB, Habeeb MA, Khan AA. Bimetallic redox nanoprobe enhances the therapeutic efficacy of hyperthermia in drug-resistant cancer cells. APPLIED NANOSCIENCE 2018. [DOI: 10.1007/s13204-018-0814-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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