Evidence map›Paper›PMID 28726781›Full record

ArticleCell death & disease2017

Autophagy inhibition reduces chemoresistance and tumorigenic potential of human ovarian cancer stem cells.

Anna Pagotto, Giorgia Pilotto, Elena Laura Mazzoldi, Maria Ornella Nicoletto, Simona Frezzini, Anna Pastò, Alberto Amadori

Abstract read
In one paragraph

Article in Cell death & disease, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 82 papers.

0numbers the graph read from it
0cells of the map it votes in
82citing 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

82 citing papers in PubMed.

  1. Article
  2. Review
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  5. Article
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  9. Review
  10. Autophagy-mediated ID1 turnover dictates chemo-resistant fate in ovarian cancer stem cells.Journal of experimental & clinical cancer research : CR · 2024
    Article
  11. Review
  12. Review
  13. Review
  14. Review
  15. Unveiling the mechanisms and challenges of cancer drug resistance.Cell communication and signaling : CCS · 2024
    Review
  16. Chloroquine and Chemotherapeutic Compounds in Experimental Cancer Treatment.International journal of molecular sciences · 2024
    Review
  17. Article
  18. Review
  19. Article
  20. Article

22 more citing papers are in PubMed but not listed here.

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.

Anna PagottoDepartment of Surgery, Oncology and Gastroenterology, University of Padova, Padova, Italy.
Giorgia PilottoDepartment of Surgery, Oncology and Gastroenterology, University of Padova, Padova, Italy.
Elena Laura MazzoldiDepartment of Surgery, Oncology and Gastroenterology, University of Padova, Padova, Italy.
Maria Ornella NicolettoIstituto Oncologico Veneto-IRCCS, Padova, Italy.
Simona FrezziniIstituto Oncologico Veneto-IRCCS, Padova, Italy.
Anna PastòIstituto Oncologico Veneto-IRCCS, Padova, Italy.
Alberto AmadoriDepartment of Surgery, Oncology and Gastroenterology, University of Padova, Padova, Italy.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Epithelial ovarian cancer (EOC) is one of the most malignant gynecological tumors with a high mortality rate owing to tumor relapse after anticancer therapies. It is widely accepted that a rare tumor cell population, known as cancer stem cells (CSC), is responsible for tumor progression and relapse; intriguingly, these cells are able to survive nutrient starvation (such as in vitro culture in the absence of glucose) and chemotherapy treatment. Recent data also indicated that chemotherapy resistance is associated with autophagy activation. We thus decided to investigate both in vitro and in vivo the autophagic activity and the effects of the perturbation of this pathway in CSC isolated from EOC ascitic effusions. Ovarian CSC, identified according to their CD44/CD117 co-expression, presented a higher basal autophagy compared with the non-stem counterpart. Inhibition of this pathway, by in vitro chloroquine treatment or CRISPR/Cas9 ATG5 knockout, impaired canonical CSC properties, such as viability, the ability to form spheroidal structures in vitro, and in vivo tumorigenic potential. In addition, autophagy inhibition showed a synergistic effect with carboplatin administration on both in vitro CSC properties and in vivo tumorigenic activity. On the whole, these results indicate that the autophagy process has a key role in CSC maintenance; inhibition of this pathway in combination with other chemotherapeutic approaches could represent a novel effective strategy to overcome drug resistance and tumor recurrence.

Indexed as

AutophagyDrug Resistance, NeoplasmAdultAutophagy-Related Protein 5FemaleGene Knockdown TechniquesHumansNeoplasm ProteinsNeoplastic Stem CellsOvarian NeoplasmsATG5 protein, humanAutophagy-Related Protein 5Neoplasm Proteins

Identifiers

PMID28726781
PMCPMC5550872

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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.