Evidence map›Paper›PMID 27531748›Full record

ArticleThe Journal of biological chemistry2016

Hypoxia and Transforming Growth Factor β Cooperate to Induce Fibulin-5 Expression in Pancreatic Cancer.

Mary Topalovski, Michelle Hagopian, Miao Wang, Rolf A Brekken

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
2.2field-weighted citation impact, top 11% 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

32 citing papers in PubMed, 46 citations in OpenAlex.

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  5. Anatomical and immunohistochemical analyses of the fusion of the premaxillary-maxillary suture in human fetuses.Journal of orofacial orthopedics = Fortschritte der Kieferorthopadie : Organ/official journal Deutsche Gesellschaft fur Kieferorthopadie · 2024
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  12. Elastic Fibre Proteins in Elastogenesis and Wound Healing.International journal of molecular sciences · 2022
    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

4 authors at 3 institutions in 1 country.

Mary TopalovskiFrom the Hamon Center for Therapeutic Oncology Research, Cancer Biology Graduate Program.
Michelle HagopianDivision of Surgical Oncology, Department of Surgery, and.
Miao WangFrom the Hamon Center for Therapeutic Oncology Research.
Rolf A BrekkenFrom the Hamon Center for Therapeutic Oncology Research, Cancer Biology Graduate Program, Division of Surgical Oncology, Department of Surgery, and Department of Pharmacology, University of Texas Southwestern Medical Center, Dallas, Texas 75390-8593 rolf.brekken@utsouthwestern.edu.
Cancer Genetics (United States) · USCenter for Neuro-Oncology · USThe University of Texas Southwestern Medical Center · US

Funding

DIVISION OF CELL &MOLECULAR BIOLOGY TRAINING PROGRAMT32GM008203 · NIGMS · UT SOUTHWESTERN MEDICAL CENTER · PI COBB, MELANIE H. · 1987 to 2018
$7.0M
Matricellular proteins as regulators of tumor progressionR01CA118240 · NCI · UT SOUTHWESTERN MEDICAL CENTER · PI BREKKEN, ROLF A · 2007 to 2010
$1.2M
NCI NIH HHS R01 CA118240NIGMS NIH HHS T32 GM008203
6 · The paper itself

Abstract

The deposition of extracellular matrix (ECM) is a defining feature of pancreatic ductal adenocarcinoma (PDA), where ECM signaling can promote cancer cell survival and epithelial plasticity programs. However, ECM signaling can also limit PDA tumor growth by producing cytotoxic levels of reactive oxygen species. For example, excess fibronectin stimulation of α5β1 integrin on stromal cells in PDA results in reduced angiogenesis and increased tumor cell apoptosis because of oxidative stress. Fibulin-5 (Fbln5) is a matricellular protein that blocks fibronectin-integrin interaction and thus directly limits ECM-driven reactive oxygen species production and supports PDA progression. Compared with normal pancreatic tissue, Fbln5 is expressed abundantly in the stroma of PDA; however, the mechanisms underlying the stimulation of Fbln5 expression in PDA are undefined. Using in vitro and in vivo approaches, we report that hypoxia triggers Fbln5 expression in a TGF-β- and PI3K-dependent manner. Pharmacologic inhibition of TGF-β receptor, PI3K, or protein kinase B (AKT) was found to block hypoxia-induced Fbln5 expression in mouse embryonic fibroblasts and 3T3 fibroblasts. Moreover, tumor-associated fibroblasts from mouse PDA were also responsive to TGF-β receptor and PI3K/AKT inhibition with regard to suppression of Fbln5. In genetically engineered mouse models of PDA, therapy-induced hypoxia elevated Fbln5 expression, whereas pharmacologic inhibition of TGF-β signaling reduced Fbln5 expression. These findings offer insight into the signaling axis that induces Fbln5 expression in PDA and a potential strategy to block its production.

Indexed as

Gene Expression Regulation, NeoplasticSignal TransductionAnimalsCarcinoma, Pancreatic DuctalCell HypoxiaExtracellular MatrixExtracellular Matrix ProteinsIntegrin alpha5beta1MiceMice, Mutant StrainsNeoplasms, ExperimentalNIH 3T3 CellsPancreatic NeoplasmsPhosphatidylinositol 3-KinasesProto-Oncogene Proteins c-aktRecombinant ProteinsExtracellular Matrix ProteinsFbln5 protein, mouseIntegrin alpha5beta1Phosphatidylinositol 3-KinasesProto-Oncogene Proteins c-aktRecombinant ProteinsTransforming Growth Factor betaAkt PKBextracellular matrixfibulin-5hypoxiapancreatic cancerTGF-β

Identifiers

PMID27531748
PMCPMC5064003
OpenAlexW2516835289

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.