Evidence map›Paper›PMID 34732713›Full record

ArticleNature communications2021

Postpartum breast cancer has a distinct molecular profile that predicts poor outcomes.

Sonali Jindal, Nathan D Pennock, Duanchen Sun, Wesley Horton, Michelle K Ozaki, Jayasri Narasimhan, Alexandra Q Bartlett, Sheila Weinmann, Paul E Goss, Virginia F Borges and 2 more

Abstract read
In one paragraph

Article in Nature communications, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers.

0numbers the graph read from it
0cells of the map it votes in
35citing 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

35 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Review
  5. Review
  6. Article
  7. Postpartum breast cancer: evidence for a distinct phenotype.Journal of the National Cancer Institute · 2026
    Article
  8. Article
  9. Article
  10. Article
  11. Impact of Postpartum Diagnosis on Survival of Women with Inflammatory Breast Cancer.Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology · 2025
    Article
  12. Article
  13. Article
  14. Article
  15. Review
  16. Article
  17. Review
  18. Article
  19. Review
  20. 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

12 authors.

Sonali Jindal *Department of Cell, Developmental and Cancer Biology, Oregon Health & Science University, Portland, OR, USA.ORCID 0000-0002-3911-6815
Nathan D Pennock *Department of Cell, Developmental and Cancer Biology, Oregon Health & Science University, Portland, OR, USA.ORCID 0000-0001-5374-7843
Duanchen Sun *Computational Biology Program, Oregon Health & Science University, Portland, OR, USA.
Wesley HortonDepartment of Cell, Developmental and Cancer Biology, Oregon Health & Science University, Portland, OR, USA.
Michelle K OzakiDepartment of Cell, Developmental and Cancer Biology, Oregon Health & Science University, Portland, OR, USA.ORCID 0000-0002-3356-9071
Jayasri NarasimhanDepartment of Cell, Developmental and Cancer Biology, Oregon Health & Science University, Portland, OR, USA.
Alexandra Q BartlettDepartment of Cell, Developmental and Cancer Biology, Oregon Health & Science University, Portland, OR, USA.
Sheila WeinmannCenter for Health Research, Kaiser Permanente Northwest, 3800N. Interstate Ave., Portland, OR, USA.
Paul E GossMassachusetts General Hospital Cancer Center, Harvard University, Boston, MA, USA.
Virginia F BorgesDivision of Medical Oncology, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA.
Zheng XiaKnight Cancer Institute, Oregon Health & Science University, Portland, OR, USA.ORCID 0000-0003-3364-8324
Pepper SchedinDepartment of Cell, Developmental and Cancer Biology, Oregon Health & Science University, Portland, OR, USA. schedin@ohsu.edu.ORCID 0000-0003-4244-987X

Funding

Upgrade of confocal microscopy at the Oregon National Primate Research CenterP51OD011092 · OD · OREGON HEALTH & SCIENCE UNIVERSITY · PI Bonnie J. Nagel · 2012 to 2026
$203.9M
University of Colorado Cancer Center Support Grant - Lung Cancer Patient-Derived Xenografts with Autologous Human Immune SystemsP30CA046934 · NCI · UNIVERSITY OF COLORADO DENVER · PI James V Degregori · 1988 to 2026
$117.0M
Understanding the origins of rapid recurrence of pancreatic cancer after resectionP30CA069533 · NCI · OREGON HEALTH & SCIENCE UNIVERSITY · PI Grace B Gill · 1997 to 2026
$60.5M
NSAIDs During Postpartum Involution for Breast Cancer ChemopreventionR01CA169175 · NCI · UNIVERSITY OF COLORADO DENVER · PI SCHEDIN, PEPPER J · 2013 to 2024
$4.8M
In Silico Screening of Alternative Polyadenylation Regulators in CancersK01LM012877 · NLM · OREGON HEALTH & SCIENCE UNIVERSITY · PI XIA, ZHENG · 2018 to 2020
$428k
NCI NIH HHS P30 CA046934NCI NIH HHS P30 CA069533NCI NIH HHS R01 CA169175NIH HHS P51 OD011092NLM NIH HHS K01 LM012877
6 · The paper itself

Abstract

Young women's breast cancer (YWBC) has poor prognosis and known interactions with parity. Women diagnosed within 5-10 years of childbirth, defined as postpartum breast cancer (PPBC), have poorer prognosis compared to age, stage, and biologic subtype-matched nulliparous patients. Genomic differences that explain this poor prognosis remain unknown. In this study, using RNA expression data from clinically matched estrogen receptor positive (ER+) cases (n = 16), we observe that ER+ YWBC can be differentiated based on a postpartum or nulliparous diagnosis. The gene expression signatures of PPBC are consistent with increased cell cycle, T-cell activation and reduced estrogen receptor and TP53 signaling. When applied to a large YWBC cohort, these signatures for ER+ PPBC associate with significantly reduced 15-year survival rates in high compared to low expressing cases. Cumulatively these results provide evidence that PPBC is a unique entity within YWBC with poor prognostic phenotypes.

Indexed as

Gene Expression Regulation, NeoplasticAdultAgedBreastBreast NeoplasmsCell CycleCell ProliferationChildChild, PreschoolCohort StudiesFemaleGenes, p53HumansHypertrophyImmunityMiddle AgedReceptors, EstrogenTP53 protein, humanTumor Suppressor Protein p53

Identifiers

PMID34732713
PMCPMC8566602

What OpenQuestion holds

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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.