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Xie, Zhiwei; Su, Yixue; Kim, Gloria B.; Selvi, Erhan; Ma, Chuying; Aragon‐Sanabria, Virginia; Hsieh, Jer‐Tsong; Dong, Cheng; Yang, Jian
Small (Weinheim an der Bergstrasse, Germany) 13, Številka: 10Journal Article
Although tremendous efforts have been made on targeted drug delivery systems, current therapy outcomes still suffer from low circulating time and limited targeting efficiency. The integration of cell‐mediated drug delivery and theranostic nanomedicine can potentially improve cancer management in both therapeutic and diagnostic applications. By taking advantage of innate immune cell's ability to target tumor cells, the authors develop a novel drug delivery system by using macrophages as both nanoparticle (NP) carriers and navigators to achieve cancer‐specific drug delivery. Theranostic NPs are fabricated from a unique polymer, biodegradable photoluminescent poly (lactic acid) (BPLP‐PLA), which possesses strong fluorescence, biodegradability, and cytocompatibility. In order to minimize the toxicity of cancer drugs to immune cells and other healthy cells, an anti‐BRAF V600E mutant melanoma specific drug (PLX4032) is loaded into BPLP‐PLA nanoparticles. Muramyl tripeptide is also conjugated onto the nanoparticles to improve the nanoparticle loading efficiency. The resulting nanoparticles are internalized within macrophages, which are tracked via the intrinsic fluorescence of BPLP‐PLA. Macrophages carrying nanoparticles deliver drugs to melanoma cells via cell–cell binding. Pharmacological studies also indicate that the PLX4032 loaded nanoparticles effectively kill melanoma cells. The “self‐powered” immune cell‐mediated drug delivery system demonstrates a potentially significant advancement in targeted theranostic cancer nanotechnologies. By taking advantage of the innate immune cell's ability to target tumor cells, a novel drug delivery system is developed by using THP‐1 cells as both nanoparticle‐carriers and navigators to achieve cancer‐specific drug delivery. The “self‐powered” immune cell‐mediated theranostic biodegradable photoluminescent poly (lactic acid) nanoparticle‐based drug delivery system represents a potentially significant advancement in targeted theranostic cancer nanotechnologies.
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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in: SICRIS
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