Evidence map›Paper›PMID 34199096›Full record

ArticleInternational journal of molecular sciences2021

Biphasic α2β1 Integrin Expression in Breast Cancer Metastasis to Bone.

Milene N O Moritz, Alyssa R Merkel, Ean G Feldman, Heloisa S Selistre-de-Araujo, Julie A Rhoades Sterling

Abstract read
In one paragraph

Article in International journal of molecular sciences, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing 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

13 citing papers in PubMed.

  1. Article
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  4. Review
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  11. Article
  12. Review
  13. Targeting Integrins for Cancer Therapy - Disappointments and Opportunities.Frontiers in cell and developmental biology · 2022
    Review
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

5 authors.

Milene N O MoritzProgram in Evolutionary Genetics and Molecular Biology, Federal University of Sao Carlos, Sao Carlos, SP 13565-905, Brazil.ORCID 0000-0003-1270-9650
Alyssa R MerkelDivision of Clinical Pharmacology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37232, USA.ORCID 0000-0001-6498-4211
Ean G FeldmanVanderbilt Graduate School Program in Biomedical Sciences, Vanderbilt University Medical Center, Nashville, TN 37232, USA.
Heloisa S Selistre-de-AraujoProgram in Evolutionary Genetics and Molecular Biology, Federal University of Sao Carlos, Sao Carlos, SP 13565-905, Brazil.
Julie A Rhoades SterlingDivision of Clinical Pharmacology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37232, USA.

Funding

The Role of Mechanotransduction in Progression of Tumor-induced Bone DiseaseR01CA163499 · NCI · VANDERBILT UNIVERSITY · PI GUELCHER, SCOTT A, RHOADES (STERLING), JULIE A · 2012 to 2016
$1.5M
Fundação de Amparo à Pesquisa do Estado de São Paulo 2013/00798-2Fundação de Amparo à Pesquisa do Estado de São Paulo 2017/23094-1Fundação de Amparo à Pesquisa do Estado de São Paulo 2019/11437-7NCI NIH HHS 1R01CA163499U.S. Department of Veterans Affairs 1I01BX001957
6 · The paper itself

Abstract

Integrins participate in the pathogenesis and progression of tumors at many stages during the metastatic cascade. However, current evidence for the role of integrins in breast cancer progression is contradictory and seems to be dependent on tumor stage, differentiation status, and microenvironmental influences. While some studies suggest that loss of α2β1 enhances cancer metastasis, other studies suggest that this integrin is pro-tumorigenic. However, few studies have looked at α2β1 in the context of bone metastasis. In this study, we aimed to understand the role of α2β1 integrin in breast cancer metastasis to bone. To address this, we utilized in vivo models of breast cancer metastasis to bone using MDA-MB-231 cells transfected with an α2 expression plasmid (MDA-OEα2). MDA cells overexpressing the α2 integrin subunit had increased primary tumor growth and dissemination to bone but had no change in tumor establishment and bone destruction. Further in vitro analysis revealed that tumors in the bone have decreased α2β1 expression and increased osteolytic signaling compared to primary tumors. Taken together, these data suggest an inverse correlation between α2β1 expression and bone-metastatic potential. Inhibiting α2β1 expression may be beneficial to limit the expansion of primary tumors but could be harmful once tumors have established in bone.

Indexed as

Gene ExpressionAnimalsBone NeoplasmsBreast NeoplasmsCell Line, TumorCell MovementCell ProliferationDisease Models, AnimalFemaleHumansIntegrin alpha2beta1MiceNeoplasm InvasivenessOsteolysisPhenotypeIntegrin alpha2beta1bone metastasisbreast cancerintegrin α2β1tumor-induced bone disease

Identifiers

PMID34199096
PMCPMC8269289

What OpenQuestion holds

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Registered trials

None linked

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.