Evidence map›Paper›PMID 19213679›Full record

ArticleThe New England journal of medicine2009

B-cell clones as early markers for chronic lymphocytic leukemia.

Ola Landgren, Maher Albitar, Wanlong Ma, Fatima Abbasi, Richard B Hayes, Paolo Ghia, Gerald E Marti, Neil E Caporaso

Open access · bronzeAbstract readMulticenter Study
In one paragraph

Article in The New England journal of medicine, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 162 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
162citing papers in PubMed, 1 pooled it
18.0field-weighted citation impact, top 1% 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

162 citing papers in PubMed, 1 synthesis or guideline pooled it, 363 citations in OpenAlex.

  1. Prevalence of monoclonal B-cell lymphocytosis: a systematic review.Cytometry. Part B, Clinical cytometry · 2010
    Pooled it
  2. Trial
  3. Trial
  4. Trial
  5. Review
  6. Article
  7. Article
  8. Observational
  9. Review
  10. Article
  11. Risk of Incident Melanoma Among Individuals With Low-Count Monoclonal B-Cell Lymphocytosis.Journal of clinical oncology : official journal of the American Society of Clinical Oncology · 2024
    Article
  12. Article
  13. Article
  14. Article
  15. Review
  16. Clinical Risks for Chronic Lymphocytic Leukemia.Journal of the National Comprehensive Cancer Network : JNCCN · 2024
    Review
  17. Article
  18. Article
  19. Article
  20. Article

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

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors at 5 institutions in 3 countries.

Ola LandgrenDivision of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA. landgreo@mail.nih.gov
Maher Albitar
Wanlong Ma
Fatima Abbasi
Richard B Hayes
Paolo Ghia
Gerald E Marti
Neil E Caporaso
Center for Biologics Evaluation and Research · USNational Institutes of Health · USQuest Diagnostics (United States) · USIRCCS Ospedale San Raffaele · ITNational Cancer Institute · US

Funding

Genetic EpidemiologyZIACP005803 · NCI · DIVISION OF CANCER EPIDEMIOLOGY AND GENETICS · PI GOLDSTEIN, ALISA · 2009 to 2025
$24.8M
Molecular and clinical profilingZIABC011352 · NCI · DIVISION OF BASIC SCIENCES - NCI · PI LANDGREN, OLA · 2010 to 2014
$4.4M
Population based studiesZIABC011205 · NCI · DIVISION OF BASIC SCIENCES - NCI · PI LANDGREN, OLA · 2009 to 2014
$858k
Intramural NIH HHS ZIA BC011205
6 · The paper itself

Abstract

backgroundOtherwise healthy persons with a small number of B-cell clones circulating in the peripheral blood have been designated as having monoclonal B-cell lymphocytosis (MBL). Hospital-based series indicate an excess risk of progression from MBL to chronic lymphocytic leukemia (CLL). In this prospective cohort study, we tested the hypothesis that CLL is always preceded by MBL.

methodsAmong 77,469 healthy adults who were enrolled in the nationwide, population-based Prostate, Lung, Colorectal, and Ovarian (PLCO) Cancer Screening Trial, we identified 45 subjects in whom CLL was subsequently diagnosed (up to 6.4 years later) through the collection of a peripheral-blood sample. Using six-color flow cytometry (with antibodies CD45, CD19, CD5, CD10, kappa, and lambda) and immunoglobulin heavy-chain gene rearrangement by reverse-transcriptase-polymerase-chain-reaction assay, we determined the association between MBL and subsequent CLL and characterized the immunoglobulin gene repertoire of the prediagnostic B-cell clones.

resultsOn the basis of either flow-cytometric or molecular analysis, 44 of 45 patients with CLL (98%; 95% confidence interval [CI], 88 to 100) had a prediagnostic B-cell clone; in 41 patients (91%; 95% CI, 79 to 98), the presence of the B-cell clone was confirmed by both methods. The presence of immunoglobulin heavy-chain variable (IGHV) genes was determined in 35 of 45 prediagnostic clones (78%). Of these clones, 16 (46%) were IGHV3 subgroup genes (including 6 [17%] IGHV3-23 genes) and 9 (26%) were IGHV4 subgroup genes (including 4 [11%] IGHV4-34 genes). Furthermore, 27 of 35 of the IGHV sequences (77%) had mutations, with similar distributions after stratification either below or above the median time between the collection of the prediagnostic blood sample and the subsequent CLL diagnosis.

conclusionsIn peripheral blood obtained up to 77 months before a CLL diagnosis, prediagnostic B-cell clones were present in 44 of 45 patients with CLL.

Indexed as

Gene Rearrangement, B-Lymphocyte, Heavy ChainAgedAntigens, CDBiomarkers, TumorB-LymphocytesClone CellsFemaleFlow CytometryHumansImmunoglobulin Heavy ChainsImmunoglobulin Light ChainsLeukemia, Lymphocytic, Chronic, B-CellLymphocyte CountMaleMiddle AgedReverse Transcriptase Polymerase Chain ReactionAntigens, CDBiomarkers, TumorImmunoglobulin Heavy ChainsImmunoglobulin Light ChainsRNA, Messenger

Identifiers

PMID19213679
PMCPMC7015348
OpenAlexW2145777118

What OpenQuestion holds

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LicenceTDM
Read underepoch 390

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.