Evidence map›Paper›PMID 31798766›Full record

ArticleGenes & cancer2019

Increased Smad3 and reduced Smad2 levels mediate the functional switch of TGF-β from growth suppressor to growth and metastasis promoter through TMEPAI/PMEPA1 in triple negative breast cancer.

Prajjal K Singha, Srilakshmi Pandeswara, Hui Geng, Rongpei Lan, Manjeri A Venkatachalam, Albert Dobi, Shiv Srivastava, Pothana Saikumar

Open access · diamondAbstract read
In one paragraph

Article in Genes & cancer, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
2.7field-weighted citation impact, top 9% 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

25 citing papers in PubMed, 43 citations in OpenAlex.

  1. Article
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  6. miRNAs in Signal Transduction of SMAD Proteins in Breast Cancer.International journal of molecular sciences · 2024
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  7. Review
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  18. Potential Effect ofBiomolecules · 2021
    Article
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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 at 3 institutions in 1 country.

Prajjal K SinghaDepartment of Med/Hematology & Med Oncology, UT Health Science Center at San Antonio, TX, USA.
Srilakshmi PandeswaraDepartment of Med/Hematology & Med Oncology, UT Health Science Center at San Antonio, TX, USA.
Hui GengDepartment of Med/Hematology & Med Oncology, UT Health Science Center at San Antonio, TX, USA.
Rongpei LanDepartment of Med/Hematology & Med Oncology, UT Health Science Center at San Antonio, TX, USA.
Manjeri A VenkatachalamDepartment of Med/Hematology & Med Oncology, UT Health Science Center at San Antonio, TX, USA.
Albert DobiDepartment of Pathology, Center for Prostate Disease Research, Department of Surgery, Uniformed Services University of the Health Sciences, Bethesda, MD, USA.
Shiv SrivastavaDepartment of Pathology, Center for Prostate Disease Research, Department of Surgery, Uniformed Services University of the Health Sciences, Bethesda, MD, USA.
Pothana SaikumarDepartment of Med/Hematology & Med Oncology, UT Health Science Center at San Antonio, TX, USA.
The University of Texas Health Science Center at Houston · USThe University of Texas Health Science Center at San Antonio · USUniformed Services University of the Health Sciences · US

Funding

TISSUE CULTURE---COREP30CA054174 · NCI · UNIVERSITY OF TEXAS HLTH SCIENCE CENTER · PI Lei Zheng · 1991 to 2026
$59.1M
Pathogenesis of tubule atrophy and failed recovery after acute kidney injuryR01DK104128 · NIDDK · UNIVERSITY OF TEXAS HLTH SCIENCE CENTER · PI VENKATACHALAM, MANJERI A · 2016 to 2019
$1.4M
NCI NIH HHS P30 CA054174NIDDK NIH HHS R01 DK104128
6 · The paper itself

Abstract

Screening of several TNBC cell lines showed altered Smad2 and Smad3 protein levels compared to normal mammary epithelial cells, suggesting the possibility that it could play an important role in the escape of cancer cells from TGF-β mediated growth inhibition. To assess the functional relevance of these endogenous molecules, Smad2 or Smad3 expression was knocked down individually and assessed their effects on pro-oncogenic properties of TGF-β. Smad3 deficiency reduced growth and invasion capacity of breast cancer cells in comparison to Smad2 which had no effect. Smad3 deficiency was also found to be associated with a reduction in the expressions of TMEPAI/PMEPA1 and EMT inducing transcription factors, E-Cadherin and increased expression of cell cycle inhibitors and Vimentin. On the other hand, Smad2 deficiency had opposite effect on these regulators. Interestingly, the decreased growth, invasion and associated gene expressions were largely reversed by overexpressing TMEPAI in Smad3 knockdown cells, suggesting that Smad3-TMEPAI axis may be involved in subverting growth suppressive effects of TGF-β into growth promotion. Similarly, altered levels of Smad proteins and TMEPAI were also noted in primary TNBC tumor tissues. Analysis of the existing databases provided additional support in terms of TMEPAI and Smad2 expression impacting the survival of TNBC patients. Taken together, our data demonstrate a novel role for Smad3 in cancer transformation and cancer progression through TMEPAI and further suggest that selective targeting of TGF-β-Smad3-TMEPAI axis may be beneficial in triple negative breast cancer therapy and prevention.

Indexed as

PTENSmad2Smad3TGF-βTMEPAI

Identifiers

PMID31798766
PMCPMC6872668
OpenAlexW2998853215

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

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.