Evidence map›Paper›PMID 34073147›Full record

ArticleGenes2021

PARP Inhibitors Talazoparib and Niraparib Sensitize Melanoma Cells to Ionizing Radiation.

Stephanie Jonuscheit, Tina Jost, Fritzi Gajdošová, Maximilian Wrobel, Markus Hecht, Rainer Fietkau, Luitpold Distel

Open access · goldAbstract read
In one paragraph

Article in Genes, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
1.3field-weighted citation impact, top 17% 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

18 citing papers in PubMed, 21 citations in OpenAlex.

  1. Review
  2. Integrated approaches to sensitizing melanoma to radiotherapy.Strahlentherapie und Onkologie : Organ der Deutschen Rontgengesellschaft ... [et al] · 2026
    Review
  3. Article
  4. Review
  5. Assessing Determinants of Response to PARP Inhibition in GermlineInternational journal of molecular sciences · 2025
    Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Tumor-specific radiosensitizing effect of the ATM inhibitor AZD0156 in melanoma cells with low toxicity to healthy fibroblasts.Strahlentherapie und Onkologie : Organ der Deutschen Rontgengesellschaft ... [et al] · 2023
    Article
  11. Article
  12. Homologous Recombination Deficiency (HRD) in Cutaneous Oncology.International journal of molecular sciences · 2023
    Review
  13. Article
  14. Review
  15. Article
  16. Article
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  18. Review
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

7 authors at 1 institution in 1 country.

Stephanie JonuscheitDepartment of Radiation Oncology, University Hospital Erlangen, 91054 Erlangen, Germany.
Tina JostDepartment of Radiation Oncology, University Hospital Erlangen, 91054 Erlangen, Germany.ORCID 0000-0001-8767-3774
Fritzi GajdošováDepartment of Radiation Oncology, University Hospital Erlangen, 91054 Erlangen, Germany.
Maximilian WrobelDepartment of Radiation Oncology, University Hospital Erlangen, 91054 Erlangen, Germany.
Markus HechtDepartment of Radiation Oncology, University Hospital Erlangen, 91054 Erlangen, Germany.ORCID 0000-0003-2082-216X
Rainer FietkauDepartment of Radiation Oncology, University Hospital Erlangen, 91054 Erlangen, Germany.ORCID 0000-0003-4387-3285
Luitpold DistelDepartment of Radiation Oncology, University Hospital Erlangen, 91054 Erlangen, Germany.ORCID 0000-0002-8040-3226
Friedrich-Alexander-Universität Erlangen-Nürnberg · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

(1) Background: Niraparib and Talazoparib are poly (ADP-ribose) polymerase (PARP) 1/2 inhibitors. It is assumed that combining PARP inhibitors with radiotherapy could be beneficial for cancer treatment. In this study, melanoma cells were treated with Niraparib and Talazoparib in combination with ionizing radiation (IR). (2) Methods: The effects of Talazoparib and Niraparib in combination with IR on cell death, clonogenicity and cell cycle arrest were studied in healthy primary fibroblasts and primary melanoma cells. (3) Results: The melanoma cells had a higher PARP1 and PARP2 content than the healthy fibroblasts, and further increased their PARP2 content after the combination therapy. PARP inhibitors both sensitized fibroblasts and melanoma cells to IR. A clear supra-additive effect of KI+IR treatment was detected in two melanoma cell lines analyzing the surviving fraction. The cell death rate increased in the healthy fibroblasts, but to a larger extent in melanoma cells after combined treatment. Finally, a lower percentage of cells in the radiosensitive G2/M phase is present in the healthy fibroblasts compared to the melanoma cells. (4) Conclusions: Both PARP inhibitors sensitize melanoma cells to IR. Healthy tissue seems to be less affected than melanoma cells. However, the great heterogeneity of the results suggests prior testing of the tumor cells in order to personalize the treatment.

Indexed as

Radiation ToleranceCell CycleCell Line, TumorFibroblastsHumansIndazolesMelanomaPhthalazinesPiperidinesPoly (ADP-Ribose) Polymerase-1Poly(ADP-ribose) Polymerase InhibitorsPoly(ADP-ribose) PolymerasesIndazolesniraparibPARP1 protein, humanPARP2 protein, humanPhthalazinesPiperidinesPoly (ADP-Ribose) Polymerase-1Poly(ADP-ribose) Polymerase InhibitorsPoly(ADP-ribose) Polymerasestalazoparibionizing radiationkinase inhibitorsPARP

Identifiers

PMID34073147
PMCPMC8229922
OpenAlexW3165113377

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

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.