Evidence map›Paper›PMID 33299647›Full record

ArticleCancer biology & medicine2020

Role of chromosomal instability and clonal heterogeneity in the therapy response of breast cancer cell lines.

Natalia Vargas-Rondón, Erika Pérez-Mora, Victoria E Villegas, Milena Rondón-Lagos

Open access · goldAbstract read
In one paragraph

Article in Cancer biology & medicine, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
1.8field-weighted citation impact, top 14% 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

14 citing papers in PubMed, 18 citations in OpenAlex.

  1. Article
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  5. Review
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  8. Breast cancer (Dove Medical Press) · 2024
    Article
  9. Review
  10. Article
  11. Review
  12. Review
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  14. The Use of Human Tissues for Research: What Investigators Need to Know.Alternatives to laboratory animals : ATLA · 2022
    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

4 authors at 2 institutions in 1 country.

Natalia Vargas-RondónSchool of Biological Sciences, Universidad Pedagógica y Tecnológica de Colombia, Tunja 150003, Colombia.
Erika Pérez-MoraSchool of Biological Sciences, Universidad Pedagógica y Tecnológica de Colombia, Tunja 150003, Colombia.
Victoria E VillegasBiology Program, Faculty of Natural Sciences, Universidad del Rosario, Bogotá 111221, Colombia.ORCID 0000-0003-4149-2307
Milena Rondón-LagosSchool of Biological Sciences, Universidad Pedagógica y Tecnológica de Colombia, Tunja 150003, Colombia.ORCID 0000-0002-3160-9316
Pedagogical and Technological University of Colombia · COUniversidad del Rosario · CO

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Objective: Chromosomal instability (CIN) is a hallmark of cancer characterized by cell-to-cell variability in the number or structure of chromosomes, frequently observed in cancer cell populations and is associated with poor prognosis, metastasis, and therapeutic resistance. Breast cancer (BC) is characterized by unstable karyotypes and recent reports have indicated that CIN may influence the response of BC to chemotherapy regimens. However, paradoxical associations between extreme CIN and improved outcome have been observed. Methods: This study aimed to 1) evaluate CIN levels and clonal heterogeneity (CH) in MCF7, ZR-751, MDA-MB468, BT474, and KPL4 BC cells treated with low doses of tamoxifen (TAM), docetaxel (DOC), doxorubicin (DOX), Herceptin (HT), and combined treatments (TAM/DOC, TAM/DOX, TAM/HT, HT/DOC, and HT/DOX) by using fluorescence Results: Intermediate CIN was linked to drug sensitivity according to three characteristics: estrogen receptor α (ERα) and HER2 status, pre-existing CIN level in cancer cells, and the CIN induced by the treatments. ERα+/HER2 Conclusions: A greater understanding of CIN and CH in BC could assist in the optimization of existing therapeutic regimens and/or in supporting new strategies to improve cancer outcomes.

Indexed as

Chromosomal InstabilityAnthracyclinesAntineoplastic Combined Chemotherapy ProtocolsBreast NeoplasmsCell Line, TumorCell ProliferationErb-b2 Receptor Tyrosine KinasesEstrogen Receptor alphaFemaleHumansIn Situ Hybridization, FluorescenceReceptors, EstrogenTaxoidsAnthracyclinesErb-b2 Receptor Tyrosine KinasesEstrogen Receptor alphaReceptors, EstrogenTaxoidsBreast cancerchromosomal instabilityclonal heterogeneityFISHtherapy resistance

Identifiers

PMID33299647
PMCPMC7721098
OpenAlexW3087142375

What OpenQuestion holds

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LicenceCC BY
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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.