# New Dihalogenated Derivatives of Condensed Benzimidazole Diones Promotes Cancer Cell Death Through Regulating STAT3/HK2 Axis/Pathway

**Authors:** Yulia Aleksandrova, Luiza Savina, Inna Shagina, Anna Lyubina, Alla Zubishina, Svetlana Makarova, Anna Bagylly, Alexander Khokhlov, Roman Begunov, Margarita Neganova

PMC · DOI: 10.3390/molecules30214150 · Molecules · 2025-10-22

## TL;DR

Scientists created new cancer-fighting compounds that target cell metabolism and disrupt tumor growth by interacting with key proteins.

## Contribution

New dihalogenated benzimidazole derivatives were synthesized and shown to inhibit tumor cell metabolism via the STAT3/HK2 pathway.

## Key findings

- Five new heterocyclic quinones with cytotoxic activity against tumor cells were synthesized.
- The compounds showed high probability of binding to STAT3, a key oncogenic regulator.
- They inhibit glycolytic enzymes, disrupting tumor cell energy balance without inducing apoptosis.

## Abstract

An effective method for synthesizing dihalogenated derivatives of condensed benzimidazole diones with a nodal nitrogen atom has been developed. As a result, five new heterocyclic quinones were obtained, which differed in the structure of the heterocycle annelated to imidazole, as well as the nature and arrangement of halogen atoms. A comprehensive analysis of the anticancer potential of new heterocyclic quinones revealed pronounced cytotoxic activity of the molecules against tumor cells. Using in silico methods for predicting activity spectra, it was found that the synthesized compounds are capable of interacting with a number of key targets that play an important role in oncogenesis, with the highest probability of binding to STAT3, the central regulator of cell growth, proliferation and metabolism. Experimental studies have shown that, despite the lack of pronounced ability to induce apoptosis, these substances effectively inhibit the activity of allosteric glycolytic enzymes, disrupting metabolic adaptation and energy balance of tumor cells. The obtained results expand the understanding of the molecular basis of the antitumor action of heterocyclic compounds and lay a solid foundation for their use as promising modulators of tumor cell metabolism.

## Linked entities

- **Proteins:** STAT3 (signal transducer and activator of transcription 3), HK2 (hexokinase 2)
- **Diseases:** cancer (MONDO:0004992)

## Full-text entities

- **Genes:** HK2 (hexokinase 2) [NCBI Gene 3099] {aka HKII, HXK2}, STAT3 (signal transducer and activator of transcription 3) [NCBI Gene 6774] {aka ADMIO, ADMIO1, APRF, HIES}
- **Diseases:** Cancer (MESH:D009369), oncogenesis (MESH:D063646)
- **Chemicals:** quinones (MESH:D011809), nitrogen (MESH:D009584), Benzimidazole Diones (-), imidazole (MESH:C029899)

## Full text

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## Figures

18 figures with captions in the complete paper: https://tomesphere.com/paper/PMC12610816/full.md

## References

128 references — full list in the complete paper: https://tomesphere.com/paper/PMC12610816/full.md

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Source: https://tomesphere.com/paper/PMC12610816