Evidence map›Paper›PMID 33622361›Full record

ArticleJournal of experimental & clinical cancer research : CR2021

Claudin-2 inhibits renal clear cell carcinoma progression by inhibiting YAP-activation.

Balawant Kumar, Rizwan Ahmad, Giovanna A Giannico, Roy Zent, Geoffrey A Talmon, Raymond C Harris, Peter E Clark, Vinata Lokeshwar, Punita Dhawan, Amar B Singh

Open access · goldAbstract read
In one paragraph

Article in Journal of experimental & clinical cancer research : CR, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
2.0field-weighted citation impact, top 13% 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

18 citing papers in PubMed, 25 citations in OpenAlex.

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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

10 authors at 4 institutions in 1 country.

Balawant KumarDepartment of Biochemistry and Molecular Biology, University of Nebraska Medical Center, 985870 Nebraska Medical Center, Omaha, NE, 68198-5870, USA.
Rizwan AhmadDepartment of Biochemistry and Molecular Biology, University of Nebraska Medical Center, 985870 Nebraska Medical Center, Omaha, NE, 68198-5870, USA.
Giovanna A GiannicoDepartment of Pathology, Microbiology and Immunology, Vanderbilt Medical Center, Nashville, TN, USA.
Roy ZentDepartment of Medicine, Vanderbilt Medical Center, Nashville, TN, USA.
Geoffrey A TalmonDepartment of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, NE, 68198, USA.
Raymond C HarrisDepartment of Medicine, Vanderbilt Medical Center, Nashville, TN, USA.
Peter E ClarkLevine Cancer Institute, Charlotte, NC, USA.
Vinata LokeshwarDepartment of Biochemistry and Molecular Biology, Augusta University, Augusta, GA, USA.
Punita DhawanDepartment of Biochemistry and Molecular Biology, University of Nebraska Medical Center, 985870 Nebraska Medical Center, Omaha, NE, 68198-5870, USA.
Amar B SinghDepartment of Biochemistry and Molecular Biology, University of Nebraska Medical Center, 985870 Nebraska Medical Center, Omaha, NE, 68198-5870, USA. amar.singh@unmc.edu.
University of Nebraska Medical Center · USVanderbilt University Medical Center · USAugusta University · USLevine Cancer Institute · US

Funding

The Laminin Receptors in Kidney FibrosisR01DK069921 · NIDDK · VANDERBILT UNIVERSITY MEDICAL CENTER · PI ROY ZENT · 2005 to 2026
$9.5M
Prune Belly Syndrome: Mechanisms of Filamin A MutationsR01DK127589 · NIDDK · UT SOUTHWESTERN MEDICAL CENTER · PI BAKER, LINDA A., QIN, JUN · 2020 to 2024
$2.5M
Chloroquine-based polymer particles as oral non-absorbable treatment of inflammatory bowel diseaseR01DK124095 · NIDDK · UNIVERSITY OF NEBRASKA MEDICAL CENTER · PI OUPICKY, DAVID, SINGH, AMAR B · 2020 to 2023
$2.1M
Mastl, a novel therapeutic target in Colon CancerR21CA216746 · NCI · UNIVERSITY OF NEBRASKA MEDICAL CENTER · PI DHAWAN, PUNITA · 2018 to 2019
$358k
Role of Claudin-1 in Colon CancerI01BX002086 · VA · VETERANS HEALTH ADMINISTRATION · PI DHAWAN, PUNITA · 2013 to 2022
–
Role of Claudin-2 in Colon TumorigenesisI01BX002761 · VA · OMAHA VA MEDICAL CENTER · PI SINGH, AMAR B · 2016 to 2023
–
BLRD VA I01 BX002086BLRD VA I01 BX002196BLRD VA I01 BX002761NCI NIH HHS R21 CA216746NIDDK NIH HHS R01 DK069921NIDDK NIH HHS R01 DK124095NIDDK NIH HHS R01 DK127589NIH HHS BX002761
6 · The paper itself

Abstract

backgroundClaudin-2 expression is upregulated in multiple cancers and promotes cancer malignancy. Remarkably, the regulation of claudin-2 expression in kidney cell lines contrasts its reported regulation in other organs. However, claudin-2 role in renal clear cell carcinoma (RCC) remains unknown despite its predominant expression in the proximal tubular epithelium (PTE), the site of RCC origin.

methodsPublicly available and independent patient databases were examined for claudin-2 association with RCC. The novel protein function was validated in vitro and in vivo by gain or loss of function assays. Mechanistic results were concluded by Mass spectroscopy, immunoprecipitation and mutational studies, and functional evaluations.

resultsWe show that the significant decrease in claudin-2 expression characterized PTE cells and Ex-vivo cultured mouse kidney subjected to dedifferentiation. Inhibition of claudin-2 was enough to induce mesenchymal plasticity and invasive mobility in these models. Further, a progressive loss of claudin-2 expression associated with the RCC progression and poor patient survival. Overexpression of claudin-2 in RCC-derived cancer cells inhibited tumorigenic abilities and xenograft tumor growth. These data supported a novel tumor-suppressive role of claudin-2 in RCC. Mechanistic insights further revealed that claudin-2 associates with YAP-protein and modulates its phosphorylation (S127) and nuclear expression. The tumor suppressive effects of claudin-2 expression were lost upon deletion of its PDZ-binding motif emphasizing the critical role of the PDZ-domain in claudin-2 interaction with YAP in regulating RCC malignancy.

conclusionsOur results demonstrate a novel kidney specific tumor suppressive role for claudin-2 protein and further demonstrate that claudin-2 co-operates with the YAP signaling in regulating the RCC malignancy.

Indexed as

Adaptor Proteins, Signal TransducingAnimalsCarcinoma, Renal CellCell Line, TumorCell ProliferationClaudin-2Disease Models, AnimalGene Expression Regulation, NeoplasticHumansMiceSurvival AnalysisYAP-Signaling ProteinsAdaptor Proteins, Signal TransducingClaudin-2Yap1 protein, mouseYAP-Signaling ProteinsDe-differentiationHippo/yap signalingProliferationRenal Cancer

Identifiers

PMID33622361
PMCPMC7901196
OpenAlexW3130664670

What OpenQuestion holds

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LicenceCC BY
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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.