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He H, Guo J, Xu B. Enzymatic Delivery of Magnetic Nanoparticles into Mitochondria of Live Cells. ChemNanoMat. 2021;7(10):1104-1107doi: 10.1002/cnma.202100249.
He, H., Guo, J., & Xu, B. (2021). Enzymatic Delivery of Magnetic Nanoparticles into Mitochondria of Live Cells. ChemNanoMat : chemistry of nanomaterials for energy, biology and more, 7(10), 1104-1107. https://doi.org/10.1002/cnma.202100249
He, Hongjian, et al. "Enzymatic Delivery of Magnetic Nanoparticles into Mitochondria of Live Cells." ChemNanoMat : chemistry of nanomaterials for energy, biology and more vol. 7,10 (2021): 1104-1107. doi: https://doi.org/10.1002/cnma.202100249
He H, Guo J, Xu B. Enzymatic Delivery of Magnetic Nanoparticles into Mitochondria of Live Cells. ChemNanoMat. 2021 Oct;7(10):1104-1107. doi: 10.1002/cnma.202100249. Epub 2021 Jun 28. PMID: 34900519; PMCID: PMC8659849.
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ChemNanoMat. 2021 Oct;7(10):1104-1107. doi: 10.1002/cnma.202100249. Epub 2021 Jun 28.

Enzymatic Delivery of Magnetic Nanoparticles into Mitochondria of Live Cells.

ChemNanoMat : chemistry of nanomaterials for energy, biology and more

Hongjian He, Jiaqi Guo, Bing Xu

Affiliations

  1. Department of Chemistry, Brandeis University, 415 South Street, Waltham, MA 02453, USA.

PMID: 34900519 PMCID: PMC8659849 DOI: 10.1002/cnma.202100249

Abstract

Delivering magnetic nanoparticles (MNPs) into mitochondria provide a facile approach to manipulate cell life because mitochondria play essential roles in cell survival and death. Here we report the use of enzyme-responsive peptide assemblies to deliver MNPs into mitochondria of live cells. The mitochondria-targeting peptide (Mito-Flag), as the substrate of enterokinase (ENTK), assembles with MNPs in solution. The MNPs that are encapsulated by Mito-Flag peptides selectively accumulate to the mitochondria of cancer cells, rather than normal cells. The mitochondrial localization of MNPs reduces the viability of the cancer cells, but hardly affects the survival of the normal cell. This work demonstrates a new and facile strategy to specifically transport MNPs to the mitochondria in cancer cells for exploring the applications of MNPs as the targeted drug for biomedicine and cancer therapy.

Keywords: Enzyme; Magnetic Nanoparticle; Mitochondria; Peptide; Self-Assembly

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