Evidence map›Paper›PMID 28701032›Full record

ArticleCancer research and treatment2018

BCL2 Regulation according to Molecular Subtype of Breast Cancer by Analysis of The Cancer Genome Atlas Database.

Ki-Tae Hwang, Kwangsoo Kim, Ji Hyun Chang, Sohee Oh, Young A Kim, Jong Yoon Lee, Se Hee Jung, In Sil Choi

Abstract read
In one paragraph

Article in Cancer research and treatment, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

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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

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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

9 citing papers in PubMed.

  1. Detecting the expression of HRs and BCL2 via IHC can help identify luminal A-like subtypes of triple-positive breast cancers.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2023
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  5. Clinical Databases for Breast Cancer Research.Advances in experimental medicine and biology · 2021
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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.

Ki-Tae HwangDepartment of Surgery, SMG-SNU Boramae Medical Center, Seoul, Korea.
Kwangsoo KimDivision of Clinical Bioinformatics, Biomedical Research Institute, Seoul National University Hospital, Seoul, Korea.
Ji Hyun ChangDepartment of Radiation Oncology, SMG-SNU Boramae Medical Center, Seoul, Korea.
Sohee OhDepartment of Biostatistics, SMG-SNU Boramae Medical Center, Seoul, Korea.
Young A KimDepartment of Pathology, SMG-SNU Boramae Medical Center, Seoul, Korea.
Jong Yoon LeeDepartment of Radiology, SMG-SNU Boramae Medical Center, Seoul, Korea.
Se Hee JungDepartment of Rehabilitation Medicine, SMG-SNU Boramae Medical Center, Seoul, Korea.
In Sil ChoiDepartment of Internal Medicine, SMG-SNU Boramae Medical Center, Seoul, Korea.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeWe investigated B-cell lymphoma 2 (BCL2) regulation across DNA, RNA, protein, and methylation status according to molecular subtype of breast cancer using The Cancer Genome Atlas (TCGA) database. MATERIALS AND

methodsWe analyzed clinical and biological data on 1,096 breast cancers from the TCGA database. Biological data included reverse phase protein array (RPPA), mRNA sequencing (mRNA-seq), mRNA microarray, methylation, copy number alteration linear, copy number alteration nonlinear, and mutation data.

resultsThe luminal A and luminal B subtypes showed upregulated expression of RPPA and mRNAseq and hypomethylation compared to the human epidermal growth factor receptor 2 (HER2) and triple-negative subtypes (all p < 0.001). No mutations were found in any subjects. High mRNA-seq and high RPPA were strongly associated with positive estrogen receptor, positive progesterone receptor (all p < 0.001), and negative HER2 (p < 0.001 and p=0.002, respectively). Correlation analysis revealed a strong positive correlation between protein and mRNA levels and a strong negative correlation between methylation and protein and mRNA levels (all p < 0.001). The high BCL2 group showed superior overall survival compared to the low BCL2 group (p=0.006).

conclusionThe regulation of BCL2 was mainly associated with methylation across the molecular subtypes of breast cancer, and luminal A and luminal B subtypes showed upregulated expression of BCL2 protein, mRNA, and hypomethylation. Although copy number alteration may have played a minor role, mutation status was not related to BCL2 regulation. Upregulation of BCL2 was associated with superior prognosis than downregulation of BCL2.

Indexed as

Up-RegulationAdultAgedAged, 80 and overBreast NeoplasmsDatabases, GeneticDNA Copy Number VariationsDNA MethylationFemaleGene Expression ProfilingGene Expression Regulation, NeoplasticHumansMaleMiddle AgedNeoplasm StagingPrognosisBCL2 protein, humanProto-Oncogene Proteins c-bcl-2BCL2Breast neoplasmsGene expression regulationMolecular subtypeThe Cancer Genome Atlas

Identifiers

PMID28701032
PMCPMC6056973

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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.