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Hypoxia, a condition of reduced oxygen, occurs in a wide variety of biological contexts, including solid tumors and bacterial biofilms, which are relevant to human health. Consequently, the development of chemical tools to study hypoxia is vital. Here we report a hypoxia-activated, small-molecule-mediated gene expression system using a bioreductive prodrug of the inducer isopropyl 1-thio-β-d-galactopyranoside. As a proof-of-concept we have placed the production of a green fluorescent protein under the control of hypoxia. Our system has the potential to be extended to regulate the production of any given protein of choice.

Original publication

DOI

10.1021/acschembio.8b00858

Type

Journal article

Journal

ACS Chem Biol

Publication Date

21/12/2018

Volume

13

Pages

3354 - 3360

Keywords

Anaerobiosis, Cell Line, Tumor, Escherichia coli, Gene Expression, Green Fluorescent Proteins, Humans, Isopropyl Thiogalactoside, Nitrofurans, Oxazines, Prodrugs