Evidence map›Paper›PMID 28382702›Full record

ArticleCancer medicine2017

Post surgery circulating free tumor DNA is a predictive biomarker for relapse of lung cancer.

Wenwei Hu, Yang Yang, Longzhen Zhang, Jianxin Yin, Jingwei Huang, Lei Huang, Hua Gu, Gening Jiang, Jianmin Fang

Abstract read
In one paragraph

Article in Cancer medicine, 2017. 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
–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

18 citing papers in PubMed.

  1. Blood-Based Cell-Free DNA in Ophthalmic Oncology.Translational vision science & technology · 2025
    Review
  2. Review
  3. Review
  4. circulating tumor DNA in the immediate post-operative setting.medRxiv : the preprint server for health sciences · 2023
    Article
  5. Article
  6. Review
  7. Review
  8. Review
  9. Article
  10. Article
  11. Observational
  12. Review
  13. Review
  14. Article
  15. Article
  16. Review
  17. Article
  18. 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

9 authors.

Wenwei HuSchool of Life Sciences and Technology, Tongji University, Shanghai, China.
Yang YangShanghai Pulmonary Hospital, Shanghai, China.
Longzhen ZhangSchool of Life Sciences and Technology, Tongji University, Shanghai, China.
Jianxin YinSchool of Life Sciences and Technology, Tongji University, Shanghai, China.
Jingwei HuangSchool of Life Sciences and Technology, Tongji University, Shanghai, China.
Lei HuangSchool of Life Sciences and Technology, Tongji University, Shanghai, China.
Hua GuSchool of Life Sciences and Technology, Tongji University, Shanghai, China.
Gening JiangShanghai Pulmonary Hospital, Shanghai, China.
Jianmin FangSchool of Life Sciences and Technology, Tongji University, Shanghai, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Cancer cells release DNA fragments into plasma as circulating free DNA (cfDNA). However, quantitative measurement of tumor-derived DNA in cfDNA remains challenge. The purpose of this study was to quantitatively assess tumor-derived DNA in lung cancer patients. By optimizing competitive allele-specific TaqMan PCR (CAST-PCR), we assessed the copy number of mutated Kirsten rat sarcoma viral oncogene homolog (KRAS) and epidermal growth factor receptor (EGFR) alleles in the pre/post surgery plasma of 168 lung cancer patients. An absolute quantitative PCR method was developed to assess the number of total cfDNA. All mutations detected in tumors were also found in the plasma after surgery. At the time of 30 days after surgery, EGFR mutation of circulating cell-free DNA was detected only in two patients who recurred in 4 months after surgery. Compared to that of normal control at 30 days after surgery, five patients who recurred in 4 months had significantly higher circulating cell-free DNA (P < 0.001), whereas six patients who recurred after 4 months (P = 0.207) and five patients without recurrence (P = 0.901) demonstrated significantly lower circulating cell-free DNA. Our findings suggest that cfDNA analysis in plasma is an alternative and supplement to tissue analysis and hold promise for clinical application. Stratification of patients according to cfDNA levels at 30 days after surgery might be helpful in selecting lung cancer patients for adjuvant therapy after surgery.

Indexed as

AdultAgedAged, 80 and overBiomarkers, TumorDNA, NeoplasmErbB ReceptorsFemaleGene DosageHumansLung NeoplasmsMaleMiddle AgedMutationPolymerase Chain ReactionProspective StudiesProto-Oncogene Proteins p21(ras)Biomarkers, TumorDNA, NeoplasmEGFR protein, humanErbB ReceptorsKRAS protein, humanProto-Oncogene Proteins p21(ras)Circulating cell-free DNAlung cancerrelapsesurgery

Identifiers

PMID28382702
PMCPMC5430107

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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.