Discovery of 2',6-Bis(4-hydroxybenzyl)-2-acetylcyclohexanone, a Novel FtsZ Inhibitor

Area of Science:

• Microbiology
• Pharmacology
• Biochemistry

Background:

• Increasing multi-drug resistance in *S. pneumoniae* necessitates novel anti-pneumococcal agents.
• *S. pneumoniae* is a primary cause of meningitis and community-acquired pneumonia (CAP).

Purpose of the Study:

• To identify and characterize a new anti-pneumococcal agent.
• To investigate the mechanism of action of enol 3 against *S. pneumoniae*.

Main Methods:

• In vitro assays to assess FtsZ polymerization inhibition and tubulin/alkaline phosphatase activity.
• Molecular docking studies to determine binding site on FtsZ.
• Evaluation of enol 3 effects on Z-ring dynamics and FtsZ assembly in *B. subtilis*.

Main Results:

• Enol 3 inhibits *S. pneumoniae* cell division by perturbing Z-ring dynamics.
• Enol 3 inhibits FtsZ polymerization and induces aggregation in vitro.
• Docking studies indicate binding near the FtsZ T7 loop.
• Similar effects observed in *B. subtilis*, suggesting broad-spectrum potential.

Conclusions:

• Enol 3 demonstrates significant anti-pneumococcal activity.
• The compound targets FtsZ, a key protein in bacterial cell division.
• Enol 3 shows potential as a broad-spectrum antibacterial agent for Gram-positive bacteria, warranting further pre-clinical investigation.