Evidence map›Paper›PMID 34944784›Full record

ArticleCancers2021

HSP90 Inhibition Synergizes with Cisplatin to Eliminate Basal-like Pancreatic Ductal Adenocarcinoma Cells.

Katharina M Ewers, Shilpa Patil, Waltraut Kopp, Jürgen Thomale, Tabea Quilitz, Anna Magerhans, Xin Wang, Elisabeth Hessmann, Matthias Dobbelstein

Open access · goldAbstract read
In one paragraph

Article in Cancers, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
2.1field-weighted citation impact, top 10% of its field
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

17 citing papers in PubMed, 25 citations in OpenAlex.

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  14. Evaluation of the Antitumor Effects of Platinum-Based [Pt(Bioinorganic chemistry and applications · 2023
    Article
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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

9 authors at 3 institutions in 2 countries.

Katharina M EwersInstitute of Molecular Oncology, Göttingen Center of Molecular Biosciences (GZMB), University Medical Center Göttingen, Justus von Liebig Weg 11, 37077 Göttingen, Germany.
Shilpa PatilClinical Research Unit 5002, KFO5002, University Medical Center Göttingen, 37075 Göttingen, Germany.ORCID 0000-0001-8412-362X
Waltraut KoppClinical Research Unit 5002, KFO5002, University Medical Center Göttingen, 37075 Göttingen, Germany.
Jürgen ThomaleInstitute of Cell Biology (Cancer Research), University of Duisburg-Essen Medical School, 45141 Essen, Germany.ORCID 0000-0003-3224-8361
Tabea QuilitzInstitute of Molecular Oncology, Göttingen Center of Molecular Biosciences (GZMB), University Medical Center Göttingen, Justus von Liebig Weg 11, 37077 Göttingen, Germany.
Anna MagerhansInstitute of Molecular Oncology, Göttingen Center of Molecular Biosciences (GZMB), University Medical Center Göttingen, Justus von Liebig Weg 11, 37077 Göttingen, Germany.
Xin WangGuangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China.ORCID 0000-0001-7440-1075
Elisabeth HessmannClinical Research Unit 5002, KFO5002, University Medical Center Göttingen, 37075 Göttingen, Germany.
Matthias DobbelsteinInstitute of Molecular Oncology, Göttingen Center of Molecular Biosciences (GZMB), University Medical Center Göttingen, Justus von Liebig Weg 11, 37077 Göttingen, Germany.ORCID 0000-0001-5052-3967
Universitätsmedizin Göttingen · DEGuangdong Academy of Medical Sciences · CNUniversity of Duisburg-Essen · DE

Funding

Deutsche Forschungsgemeinschaft Clinical Research Unit 5002German Cancer Aid 70113916Wilhelm Sander Stiftung 2020.014.1
6 · The paper itself

Abstract

To improve the treatment of pancreatic ductal adenocarcinoma (PDAC), a promising strategy consists of personalized chemotherapy based on gene expression profiles. Investigating a panel of PDAC-derived human cell lines, we found that their sensitivities towards cisplatin fall in two distinct classes. The platinum-sensitive class is characterized by the expression of GATA6, miRNA-200a, and miRNA-200b, which might be developable as predictive biomarkers. In the case of resistant PDAC cells, we identified a synergism of cisplatin with HSP90 inhibitors. Mechanistic explanations of this synergy include the degradation of Fanconi anemia pathway factors upon HSP90 inhibition. Treatment with the drug combination resulted in increased DNA damage and chromosome fragmentation, as we have reported previously for ovarian cancer cells. On top of this, HSP90 inhibition also enhanced the accumulation of DNA-bound platinum. We next investigated an orthotopic syngeneic animal model consisting of tumors arising from KPC cells (LSL-KrasG12D/+; LSL-Trp53R172H/+; Pdx-1-Cre, C57/BL6 genetic background). Here again, when treating established tumors, the combination of cisplatin with the HSP90 inhibitor onalespib was highly effective and almost completely prevented further tumor growth. We propose that the combination of platinum drugs and HSP90 inhibitors might be worth testing in the clinics for the treatment of cisplatin-resistant PDACs.

Indexed as

basal-like subtypecisplatinHSP90 inhibitionPDACplatinum-DNA adductssynergism

Identifiers

PMID34944784
PMCPMC8699576
OpenAlexW4200120137

What OpenQuestion holds

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Registered trials

None linked

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.