Untangling the roles of TOP2A and TOP2B in transcription and cancer

L Uusküla-Reimand, MD Wilson - Science advances, 2022 - science.org
Type II topoisomerases (TOP2) are conserved regulators of chromatin topology that catalyze
reversible DNA double-strand breaks (DSBs) and are essential for maintaining genomic …

Targeting ribosome biogenesis in cancer: lessons learned and way forward

A Zisi, J Bartek, MS Lindström - Cancers, 2022 - mdpi.com
Simple Summary Cells need to produce ribosomes to sustain continuous proliferation and
expand in numbers, a feature that is even more prominent in uncontrollably proliferating …

The chemotherapeutic drug CX-5461 is a potent mutagen in cultured human cells

GCC Koh, S Boushaki, SJ Zhao, AM Pregnall… - Nature Genetics, 2024 - nature.com
The chemotherapeutic agent CX-5461, or pidnarulex, has been fast-tracked by the United
States Food and Drug Administration for early-stage clinical studies of BRCA1-, BRCA2-and …

A first-in-class clinical G-quadruplex-targeting drug. The bench-to-bedside translation of the fluoroquinolone QQ58 to CX-5461 (Pidnarulex)

H Xu, LH Hurley - Bioorganic & Medicinal Chemistry Letters, 2022 - Elsevier
Abstract CX-3543 (Quarfloxin) and CX-5461 (Pidnarulex) were originally derived from a
group of fluoroquinolones that were shown to have dual topoisomerase II (Top2) and G …

Pathogenic variants in SLF2 and SMC5 cause segmented chromosomes and mosaic variegated hyperploidy

LJ Grange, JJ Reynolds, F Ullah, B Isidor… - Nature …, 2022 - nature.com
Embryonic development is dictated by tight regulation of DNA replication, cell division and
differentiation. Mutations in DNA repair and replication genes disrupt this equilibrium, giving …

Isolation and detection of DNA–protein crosslinks in mammalian cells

I Torrecilla, A Ruggiano, K Kiianitsa… - Nucleic Acids …, 2024 - academic.oup.com
DNA–protein crosslinks (DPCs) are toxic DNA lesions wherein a protein is covalently
attached to DNA. If not rapidly repaired, DPCs create obstacles that disturb DNA replication …

Nucleolus and nucleolar stress: from cell fate decision to disease development

L Hua, D Yan, C Wan, B Hu - Cells, 2022 - mdpi.com
Besides the canonical function in ribosome biogenesis, there have been significant recent
advances towards the fascinating roles of the nucleolus in stress response, cell destiny …

Results of the phase I CCTG IND. 231 trial of CX-5461 in patients with advanced solid tumors enriched for DNA-repair deficiencies

J Hilton, K Gelmon, PL Bedard, D Tu, H Xu… - Nature …, 2022 - nature.com
CX-5461 is a G-quadruplex stabilizer that exhibits synthetic lethality in homologous
recombination-deficient models. In this multicentre phase I trial in patients with solid tumors …

XPF interacts with TOP2B for R-loop processing and DNA looping on actively transcribed genes

G Chatzinikolaou, K Stratigi, A Siametis… - Science …, 2023 - science.org
Co-transcriptional RNA-DNA hybrids can not only cause DNA damage threatening genome
integrity but also regulate gene activity in a mechanism that remains unclear. Here, we show …

[HTML][HTML] G-quadruplex resolution: From molecular mechanisms to physiological relevance

K Sato, P Knipscheer - DNA repair, 2023 - Elsevier
Guanine-rich DNA sequences can fold into stable four-stranded structures called G-
quadruplexes or G4s. Research in the past decade demonstrated that G4 structures are …