Evidence map›Paper›PMID 34493540›Full record

ArticleBMJ open respiratory research2021

Circulating tumour cells and circulating cell-free DNA in patients with lung cancer: a comparison between thoracotomy and video-assisted thoracoscopic surgery.

Periklis Katopodis, Vladimir Anikin, Uday Kishore, Thomas Carter, Marcia Hall, Nizar Asadi, Andreas Polychronis, Emmanouil Karteris

Open access · goldAbstract readComparative Study
In one paragraph

Article in BMJ open respiratory research, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
0.3field-weighted citation impact, top 53% 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

4 citing papers in PubMed, 4 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. 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

8 authors at 4 institutions in 2 countries.

Periklis KatopodisBiosciences, College of Health, Medicine and Life Sciences, Brunel University London, Uxbridge, UK.
Vladimir AnikinBiosciences, College of Health, Medicine and Life Sciences, Brunel University London, Uxbridge, UK.
Uday KishoreBiosciences, College of Health, Medicine and Life Sciences, Brunel University London, Uxbridge, UK.
Thomas CarterMount Vernon Cancer Centre, Northwood, UK.
Marcia HallBiosciences, College of Health, Medicine and Life Sciences, Brunel University London, Uxbridge, UK.
Nizar AsadiRoyal Brompton and Harefield NHS Trust, London, UK.
Andreas PolychronisMount Vernon Cancer Centre, Northwood, UK.
Emmanouil KarterisBiosciences, College of Health, Medicine and Life Sciences, Brunel University London, Uxbridge, UK Emmanouil.karteris@brunel.ac.uk.ORCID 0000-0003-3231-7267
Mount Vernon Cancer Centre · GBRoyal Brompton & Harefield NHS Foundation Trust · GBBrunel University of London · GBSechenov University · RU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionThe type of lung cancer surgery impacts on tumour manipulation during surgery and may drive dissemination of cancer cells into the vasculature, thus facilitating metastatic spread. The aim of this study was to investigate the impact of surgically induced trauma using peripheral blood from preoperative and postoperative patients with non-small cell lung cancer (NSCLC) undergoing thoracotomy or video-assisted thoracoscopic surgery (VATS) resection.

methodsImaging flow cytometry was used to measure circulating cancer-associated cells (CCs). Circulating cell-free DNA (ccfDNA) isolation was performed using Promega dsDNA HS Assay Kit. DNA integrity measurements were calculated by the ALU247 to ALU115 ratio and cytokine levels measured using the Luminex screening assay.

resultsCCs were increased in postoperative blood samples in 54 patients with NSCLC. Patients who underwent thoracotomy instead of VATS had higher numbers of EpCAM (p=0.004) and PanCK-labelled (p=0.03) CCs postoperatively. ccfDNA and DNA integrity index were also significantly increased in postoperative samples (p=0.0009 and p=0.04), with concomitant increase in interleukin 6 and interleukin 10 levels in the same cohorts (p=0.0004 and p=0.034, respectively).

conclusionsIn this study we have shown the potential clinical utility of several biomarkers from liquid biopsies to guide perioperative management, as well as provide a snapshot of the type of surgical resection in terms of circulating tumour cell release. Obtaining reliable readouts from blood can provide crucial information for disease progression, as well as being of prognostic value monitoring patients' response to treatment.

Indexed as

Carcinoma, Non-Small-Cell LungCell-Free Nucleic AcidsLung NeoplasmsNeoplastic Cells, CirculatingHumansPneumonectomyThoracic Surgery, Video-AssistedThoracotomyCell-Free Nucleic Acidslung cancernon-small cell lung cancerthoracic surgery

Identifiers

PMID34493540
PMCPMC8424856
OpenAlexW3196903889

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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.