Evidence map›Paper›PMID 40089867›Full record

ArticleAdvanced science (Weinheim, Baden-Wurttemberg, Germany)2025

Targeting Replication Fork Processing Synergizes with PARP Inhibition to Potentiate Lethality in Homologous Recombination Proficient Ovarian Cancers.

Ganesh Pai Bellare, Kshama Kundu, Papiya Dey, Krupa Thankam Philip, Nitish Chauhan, Muskan Sharma, Sankarsingh Kesharsingh Rajput, Birija Sankar Patro

Abstract read
In one paragraph

Article in Advanced science (Weinheim, Baden-Wurttemberg, Germany), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

5 citing papers in PubMed.

  1. Review
  2. Article
  3. Review
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  5. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors.

Ganesh Pai BellareBio-Organic Division, Bhabha Atomic Research Centre, Mumbai, 400085, India.ORCID https://orcid.org/0000-0002-3083-5848
Kshama KunduBio-Organic Division, Bhabha Atomic Research Centre, Mumbai, 400085, India.ORCID https://orcid.org/0000-0002-1606-2594
Papiya DeyBio-Organic Division, Bhabha Atomic Research Centre, Mumbai, 400085, India.ORCID https://orcid.org/0009-0007-9934-5701
Krupa Thankam PhilipBio-Organic Division, Bhabha Atomic Research Centre, Mumbai, 400085, India.ORCID https://orcid.org/0009-0000-1399-0865
Nitish ChauhanBio-Organic Division, Bhabha Atomic Research Centre, Mumbai, 400085, India.ORCID https://orcid.org/0000-0002-1449-297X
Muskan SharmaBio-Organic Division, Bhabha Atomic Research Centre, Mumbai, 400085, India.ORCID https://orcid.org/0009-0005-5769-1687
Sankarsingh Kesharsingh RajputBio-Organic Division, Bhabha Atomic Research Centre, Mumbai, 400085, India.ORCID https://orcid.org/0009-0001-4116-1893
Birija Sankar PatroBio-Organic Division, Bhabha Atomic Research Centre, Mumbai, 400085, India.ORCID https://orcid.org/0000-0001-9161-5913

Funding

Department of Atomic Energy, India
6 · The paper itself

Abstract

Synthetic lethality in homologous recombination (HR)-deficient cancers caused by Poly (ADP-ribose) polymerase inhibitors (PARPi) has been classically attributed to its role in DNA repair. The mode of action of PARPi and resistance thereof are now believed to be predominantly replication associated. Therefore, effective combinatorial approaches of targeting replication fork processing along with HR-downregulation to target HR-proficient and possibly PARPi-resistant tumors are warranted. Stilbenes are a privileged class of molecules, which include resveratrol, pterostilbene, piceatannol, etc, that modulate both replication processes and RAD51-expression. In this investigation, by screening a small library of stilbenes, including in-house synthesized molecules, trans-4,4'-dihydroxystilbene (DHS) was discovered as a potent natural agent, which downregulates RAD51 expression and HR repair (GFP-reporter assay). DHS induces extensive synergistic cell death in ovarian cancers when combined with talazoparib (PARPi). Mechanistically, DHS elicits replication-stress through severely impeding replication fork progress, speed, and inducing fork-asymmetry. This leads to robust induction of single stranded DNA (ssDNA) gaps and poly-ADP-ribosylation (PARylation) in S-phase cells, signifying issues related to lagging (Okazaki) strand synthesis. PARPi, which abrogates PARylation, potentiates DHS induced ssDNA gaps, and their conversion into lethal double strand breaks through MRE11 action. Furthermore, the combination is highly effective in mitigating ovarian tumor xenograft growth in SCID mice and exhibited a good therapeutic-index with no/minimal tissue-toxicity.

Indexed as

DNA ReplicationHomologous RecombinationOvarian NeoplasmsPoly(ADP-ribose) Polymerase InhibitorsAnimalsCell Line, TumorFemaleHumansMiceSynthetic Lethal MutationsXenograft Model Antitumor AssaysPoly(ADP-ribose) Polymerase InhibitorsDNA replicationPARP inhibitorssDNA gapstalazoparibtrans‐4,4′‐dihydroxystilbene (DHS)

Identifiers

PMID40089867
PMCPMC12079468

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.