Direct Targeting of Gene Regulators by Iridium(III) and Rhodium(III) Complexes

Area of Science:

• Coordination Chemistry
• Chemical Biology
• Molecular Biology

Background:

• Aberrant gene expression drives disease progression, making gene regulators key therapeutic targets.
• Transition metal complexes, particularly iridium(III) and rhodium(III), offer unique properties for biomolecular interaction.
• Protein-protein interactions (PPIs) are crucial for gene regulation and represent a promising target for modulation.

Purpose of the Study:

• To explore organometallic iridium(III) and rhodium(III) complexes for modulating gene expression via PPIs.
• To investigate the interaction mechanisms between these complexes and gene regulatory proteins.
• To develop novel probes and therapeutic agents for controlling gene regulation.

Main Methods:

• Design and synthesis of organometallic iridium(III) and rhodium(III) complexes.
• Investigation of complex interactions with transcription factors and epigenetic enzymes.
• Development of transition-metal-based conjugates for indirect gene regulator modulation.
• Utilizing time-resolved measurements for probe applications.

Main Results:

• Organometallic iridium(III) and rhodium(III) complexes exhibit specific binding to gene regulatory proteins via precise 3D interactions.
• Ligand and metal center influence the bioactivity of these complexes.
• Conjugation strategies enable effective gene modulators with tunable agonistic/antagonistic activity.
• Complexes serve as effective probes for screening gene regulation modulators.

Conclusions:

• Organometallic iridium(III) and rhodium(III) complexes provide a novel platform for targeting gene regulatory proteins.
• These complexes offer a precise, non-redox, non-covalent mechanism for modulating gene expression.
• The findings pave the way for developing new organometallic drugs and advancing the understanding of activity-based gene regulation.