Evidence map›Paper›PMID 34848855›Full record

ArticleBritish journal of cancer2022

Leukapheresis increases circulating tumour cell yield in non-small cell lung cancer, counts related to tumour response and survival.

Menno Tamminga, Kiki C Andree, Hilda van den Bos, T Jeroen N Hiltermann, Anouk Mentink, Diana C J Spierings, Peter Lansdorp, Wim Timens, Ed Schuuring, Leon W M M Terstappen and 1 more

Abstract read
In one paragraph

Article in British journal of cancer, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing 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

10 citing papers in PubMed.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Article
  6. Clinical application of circulating tumor cells.Medizinische Genetik : Mitteilungsblatt des Berufsverbandes Medizinische Genetik e.V · 2023
    Article
  7. Article
  8. Article
  9. Review
  10. 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

11 authors.

Menno TammingaDepartment of Pulmonary Diseases, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands.ORCID http://orcid.org/0000-0001-6508-2623
Kiki C AndreeDepartment of Medical Cell BioPhysics, Faculty of Sciences and Technology, University of Twente, Enschede, The Netherlands.
Hilda van den BosEuropean Research Institute for the Biology of Ageing, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands.
T Jeroen N HiltermannDepartment of Pulmonary Diseases, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands.
Anouk MentinkDepartment of Medical Cell BioPhysics, Faculty of Sciences and Technology, University of Twente, Enschede, The Netherlands.
Diana C J SpieringsEuropean Research Institute for the Biology of Ageing, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands.
Peter LansdorpEuropean Research Institute for the Biology of Ageing, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands.
Wim TimensDepartment of Pathology and Medical Biology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands.
Ed SchuuringDepartment of Pathology and Medical Biology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands.
Leon W M M TerstappenDepartment of Medical Cell BioPhysics, Faculty of Sciences and Technology, University of Twente, Enschede, The Netherlands.ORCID http://orcid.org/0000-0001-5944-3787
Harry J M GroenDepartment of Pulmonary Diseases, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands. m.tamminga@umcg.nl.ORCID http://orcid.org/0000-0002-2978-5265

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundCirculating tumour cells (CTCs) can be used to monitor cancer longitudinally, but their use in non-small cell lung cancer (NSCLC) is limited due to low numbers in the peripheral blood. Through diagnostic leukapheresis (DLA) CTCs can be obtained from larger blood volumes.

methodsPatients with all stages of NSCLC were selected. One total body blood volume was screened by DLA before and after treatment. Peripheral blood was drawn pre- and post DLA for CTC enumeration by CellSearch. CTCs were detected in the DLA product (volume equalling 2 × 10

resultsFifty-six patients were included. Before treatment, CTCs were more often detected in DLA (32/55, 58%) than in the peripheral blood (pre-DLA: 18/55, 33%; post DLA: 13/55, 23%, both at p < 0.01). CTCs per 7.5 mL DLA product were median 9.2 times (interquartile range = 5.6-24.0) higher than CTCs in 7.5 mL blood. RosetteSEP did not significantly improve CTC detection (pretreatment: 34/55, 62%, post treatment: 16/34, 47%) and CTCs per mL even decreased compared to DLA (p = 0.04).. Patients with advanced-stage disease with DLA-CTC after treatment showed fewer tumour responses and shorter progression-free survival (PFS) than those without DLA-CTC (median PFS, 2.0 vs 12.0 months, p < 0.01). DLA-CTC persistence after treatment was independent of clinical factors associated with shorter PFS (hazard ratio (HR) = 5.8, 95% confidence interval (CI), 1.4-35.5, p = 0.02). All evaluable CTCs showed aneuploidy.

conclusionsDLA detected nine times more CTCs than in the peripheral blood. The sustained presence of CTCs in DLA after treatment was associated with therapy failure and shortened PFS.

trial registrationThe study was approved by the Medical Ethical Committee (NL55754.042.15) and was registered in the Dutch trial register (NL5423).

Indexed as

AgedBiomarkers, TumorCarcinoma, Non-Small-Cell LungCell CountFemaleHumansLeukapheresisLung NeoplasmsMaleMiddle AgedNeoplastic Cells, CirculatingProgression-Free SurvivalSingle-Cell AnalysisSurvival RateTreatment OutcomeWhole Genome SequencingBiomarkers, Tumor

Identifiers

PMID34848855
PMCPMC8810861

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.