Multicomponent Bioluminescence Imaging with Naphthylamino Luciferins.

Area of Science:

• Biochemistry
• Molecular Biology
• Biotechnology

Background:

• Bioluminescent imaging is crucial for studying complex biological processes in tissues and preclinical models.
• Existing bioluminescent tools have limitations in probing diverse multicellular interactions.
• Engineering novel luciferases and synthetic luciferin analogues addresses the need for more distinct probes.

Purpose of the Study:

• To explore naphthylamino luciferins as orthogonal bioluminescent probes.
• To develop new enzyme-substrate pairs for enhanced bioluminescent imaging.
• To enable multi-component imaging by expanding the toolkit of bioluminescent probes.

Main Methods:

• Synthesis of three naphthylamino luciferin analogues via an optimized route.
• In vitro and in cellulo testing of luciferin analogues with native luciferase.
• Screening analogues against luciferase mutant libraries to identify unique pairings.

Main Results:

• The synthesized naphthylamino luciferins demonstrated robust light emission with native luciferase.
• Unique enzyme-substrate pairs were identified by screening against luciferase mutants.
• The new probes are compatible with existing bioluminescent tools.

Conclusions:

• Naphthylamino luciferins represent a novel class of orthogonal bioluminescent probes.
• These probes enhance the capability for multi-component imaging in biological research.
• The developed probes offer new solutions for studying complex multicellular interactions.