Evidence map›Paper›PMID 38986733›Full record

ArticleCancer letters2024

PP2A B55α inhibits epithelial-mesenchymal transition via regulation of Slug expression in non-small cell lung cancer.

Deepika Singh, Zhaojun Qiu, Spehar M Jonathan, Pengyan Fa, Hannah Thomas, Chandra Bhushan Prasad, Shurui Cai, Jing J Wang, Chunhong Yan, Xiaoli Zhang and 5 more

Abstract read
In one paragraph

Article in Cancer letters, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing 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

8 citing papers in PubMed.

  1. Article
  2. Observational
  3. Switching of the c-Myc protein degradation pathway depending on the PP2A-B55α complex levels.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  4. Article
  5. Targeting PP2A in cancer: an underrated option.Journal of experimental & clinical cancer research : CR · 2025
    Review
  6. Article
  7. Article
  8. LowTheranostics · 2024
    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

15 authors.

Deepika SinghThe Department of Radiation Oncology, The Ohio State University Comprehensive Cancer Center and College of Medicine, Columbus, OH, United States.
Zhaojun QiuThe Department of Radiation Oncology, The Ohio State University Comprehensive Cancer Center and College of Medicine, Columbus, OH, United States.
Spehar M JonathanThe Department of Radiation Oncology, The Ohio State University Comprehensive Cancer Center and College of Medicine, Columbus, OH, United States.
Pengyan FaThe Department of Radiation Oncology, The Ohio State University Comprehensive Cancer Center and College of Medicine, Columbus, OH, United States.
Hannah ThomasThe Ohio State University, Columbus, OH, United States.
Chandra Bhushan PrasadThe Department of Radiation Oncology, The Ohio State University Comprehensive Cancer Center and College of Medicine, Columbus, OH, United States.
Shurui CaiThe Department of Radiation Oncology, The Ohio State University Comprehensive Cancer Center and College of Medicine, Columbus, OH, United States.
Jing J WangThe Department of Cancer Biology and Genetics, The Ohio State University Comprehensive Cancer Center and College of Medicine, Columbus, OH, United States.
Chunhong YanGeorgia Cancer Center, Augusta University, Augusta, GA, United States.
Xiaoli ZhangCenter for Biostatistics, The Ohio State University, United States; Department of Biomedical Informatics, College of Medicine, The Ohio State University, United States.
Monica VenereThe Department of Radiation Oncology, The Ohio State University Comprehensive Cancer Center and College of Medicine, Columbus, OH, United States; The James Comprehensive Cancer Center, Pelotonia Institute for Immuno-Oncology, The Ohio State University, Columbus, OH, United States.
Zaibo LiDepartment of Pathology, The Ohio State University Wexner Medical Center, College of Medicine, Columbus, OH, 43210, United States.
Steven T SizemoreThe Department of Radiation Oncology, The Ohio State University Comprehensive Cancer Center and College of Medicine, Columbus, OH, United States.
Qi-En WangThe Department of Radiation Oncology, The Ohio State University Comprehensive Cancer Center and College of Medicine, Columbus, OH, United States.
Junran ZhangThe Department of Radiation Oncology, The Ohio State University Comprehensive Cancer Center and College of Medicine, Columbus, OH, United States; The James Comprehensive Cancer Center, Pelotonia Institute for Immuno-Oncology, The Ohio State University, Columbus, OH, United States; The James Comprehensive Cancer Center, Center for Metabolism, United States. Electronic address: junran.zhang@osumc.edu.

Funding

Translational Therapeutics Research Program (TT)P30CA016058 · NCI · OHIO STATE UNIVERSITY · PI Daniel G. Stover · 1985 to 2026
$132.3M
Targeting cholesterol metabolism and replication stress response in cancer therapyR01CA249198 · NCI · OHIO STATE UNIVERSITY · PI ZHANG, JUNRAN · 2021 to 2025
$1.8M
ATF3 Regulation of Histone Acetylation in Genome MaintenanceR01CA240966 · NCI · AUGUSTA UNIVERSITY · PI YAN, CHUNHONG · 2020 to 2025
$1.7M
B55 alpha deficiency as a therapeutic target in cancerR01CA240374 · NCI · OHIO STATE UNIVERSITY · PI ZHANG, JUNRAN · 2020 to 2024
$1.6M
Exploring potential biomarkers predictive of response to ATR and CHK1 inhibitorsR21CA226317 · NCI · OHIO STATE UNIVERSITY · PI ZHANG, JUNRAN · 2018 to 2019
$367k
NCI NIH HHS P30 CA016058NCI NIH HHS R01 CA240374NCI NIH HHS R01 CA240966NCI NIH HHS R01 CA249198NCI NIH HHS R21 CA226317
6 · The paper itself

Abstract

PP2A B55α, encoded by PPP2R2A, acts as a regulatory subunit of the serine/threonine phosphatase PP2A. Despite a frequent loss of heterozygosity of PPP2R2A in cases of non-small cell lung cancer (NSCLC), research on PP2A B55α's functions remains limited and controversial. To investigate the biological roles of PP2A B55α, we conducted bulk RNA-sequencing to assess the impact of PPP2R2A knockdown using two shRNAs in a NSCLC cell line. Gene set enrichment analysis (GSEA) of the RNA-sequencing data revealed significant enrichment of the epithelial-mesenchymal transition (EMT) pathway, with SNAI2 (the gene encoding Slug) emerging as one of the top candidates. Our findings demonstrate that PP2A B55α suppresses EMT, as PPP2R2A deficiency through knockdown or homozygous or hemizygous depletion promotes EMT and metastatic behavior in NSCLC cells, as evidenced by changes in EMT biomarkers, invasion and migration abilities, as well as metastasis in a tail vein assay. Mechanistically, PP2A B55α inhibits EMT by downregulating SNAI2 expression via the GSK3β-β-catenin pathway. Importantly, PPP2R2A deficiency also slows cell proliferation by disrupting DNA replication, particularly in PPP2R2A

Indexed as

Carcinoma, Non-Small-Cell LungEpithelial-Mesenchymal TransitionGene Expression Regulation, NeoplasticLung NeoplasmsProtein Phosphatase 2Snail Family Transcription FactorsA549 CellsAnimalsCell Line, TumorCell MovementGlycogen Synthase Kinase 3 betaHumansMiceNeoplasm InvasivenessGlycogen Synthase Kinase 3 betaPPP2R2A protein, humanProtein Phosphatase 2SNAI1 protein, humanSNAI2 protein, humanSnail Family Transcription Factors

Identifiers

PMID38986733
PMCPMC11670312

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.