Evidence map›Paper›PMID 32859889›Full record

ArticleOncogenesis2020

LIMK2 promotes the metastatic progression of triple-negative breast cancer by activating SRPK1.

Parmanand Malvi, Radoslav Janostiak, Suresh Chava, Padmini Manrai, Esther Yoon, Kamaljeet Singh, Malini Harigopal, Romi Gupta, Narendra Wajapeyee

Open access · goldAbstract read
In one paragraph

Article in Oncogenesis, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed, 2 pooled it
3.2field-weighted citation impact, top 8% 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

29 citing papers in PubMed, 2 syntheses or guidelines pooled it, 43 citations in OpenAlex.

  1. Pooled it
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  8. NCellular & molecular biology letters · 2024
    Article
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  11. Article
  12. SRPKs: a promising therapeutic target in cancer.Clinical and experimental medicine · 2023
    Review
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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

9 authors at 3 institutions in 2 countries.

Parmanand Malvi *Department of Biochemistry and Molecular Genetics and UAB O'Neal Comprehensive Cancer Center, The University of Alabama at Birmingham, Birmingham, AL, 35294, USA.
Radoslav Janostiak *Department of Pathology, Yale University School of Medicine, New Haven, CT, 06510, USA.
Suresh ChavaDepartment of Biochemistry and Molecular Genetics and UAB O'Neal Comprehensive Cancer Center, The University of Alabama at Birmingham, Birmingham, AL, 35294, USA.
Padmini ManraiDepartment of Pathology, Yale University School of Medicine, New Haven, CT, 06510, USA.
Esther YoonDepartment of Pathology, Yale University School of Medicine, New Haven, CT, 06510, USA.
Kamaljeet SinghDepartment of Pathology and Laboratory Medicine, Warren Alpert Medical School of Brown University, Providence, RI, 02905, USA.
Malini HarigopalDepartment of Pathology, Yale University School of Medicine, New Haven, CT, 06510, USA.
Romi GuptaDepartment of Biochemistry and Molecular Genetics and UAB O'Neal Comprehensive Cancer Center, The University of Alabama at Birmingham, Birmingham, AL, 35294, USA. romigup@uab.edu.ORCID http://orcid.org/0000-0001-5108-5962
Narendra WajapeyeeDepartment of Biochemistry and Molecular Genetics and UAB O'Neal Comprehensive Cancer Center, The University of Alabama at Birmingham, Birmingham, AL, 35294, USA. nwajapey@uab.edu.ORCID http://orcid.org/0000-0003-3306-349X
University of Alabama at Birmingham · USYale University · USBrown University · US

Funding

A NOVEL DRUGGABLE GENETIC VULNERABILITY PATHWAY IN MELANOMAR01CA200919 · NCI · YALE UNIVERSITY · PI WAJAPEYEE, NARENDRA · 2016 to 2020
$1.8M
NCI NIH HHS R01 CA200919
6 · The paper itself

Abstract

Triple-negative breast cancer (TNBC) is a highly metastatic breast cancer subtype and due to the lack of hormone receptors and HER2 expression, TNBC has limited therapeutic options with chemotherapy being the primary choice for systemic therapy. LIM Domain Kinase 2 (LIMK2) is a serine/threonine kinase that plays an important role in the regulation of actin filament dynamics. Here, we show that LIM domain kinase 2 (LIMK2) is overexpressed in TNBC, and short-hairpin RNA (shRNA)-mediated LIMK2 knockdown or its pharmacological inhibition blocks metastatic attributes of TNBC cells. To determine the mechanism by which LIMK2 promotes TNBC metastatic progression, we performed stable isotope labeling by amino acids in cell culture (SILAC) based unbiased large-scale phosphoproteomics analysis. This analysis identified 258 proteins whose phosphorylation was significantly reduced due to LIMK2 inhibition. Among these proteins, we identified SRSF protein kinase 1 (SRPK1), which encodes for a serine/arginine protein kinase specific for the SR (serine/arginine-rich domain) family of splicing factors. We show that LIMK2 inhibition blocked SRPK1 phosphorylation and consequentially its activity. Furthermore, similar to LIMK2, genetic inhibition of SRPK1 by shRNAs or its pharmacological inhibition blocked the metastatic attributes of TNBC cells. Moreover, the pharmacological inhibition of LIMK2 blocked metastatic progression in mice without affecting primary tumor growth. In sum, these results identified LIMK2 as a facilitator of distal TNBC metastasis and a potential target for preventing TNBC metastatic progression.

Identifiers

PMID32859889
PMCPMC7455732
OpenAlexW3082757095

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.