High efficiency and long-term intracellular activity of an enzymatic nanofactory based on metal-organic frameworks.

ABSTRACT: Enhancing or restoring enzymatic function in cells is highly desirable in applications ranging from ex vivo cellular manipulations to enzyme replacement therapies in humans. However, because enzymes degrade in biological milieus, achieving long-term enzymatic activities can be challenging. Herein we report on the in cellulo properties of nanofactories that consist of antioxidative enzymes encapsulated in metal-organic frameworks (MOFs). We demonstrate that, while free enzymes display weak activities for only a short duration, these efficient nanofactories protect human cells from toxic reactive oxygen species for up to a week. Remarkably, these results are obtained in spite of the nanofactories being localized in lysosomes, acidic organelles that contain a variety of proteases. The long-te

SUBMITTER: Lian X 

PROVIDER: S-EPMC5727123 | biostudies-literature | 2017 Dec

REPOSITORIES: biostudies-literature