Cited by 33Cancer, Hypoxia, and MetabolismAngiogenesis and VEGF in CancerMechanisms of cancer metastasis

Cell Type-dependent HIF1 α-mediated Effects of Hypoxia on Proliferation, Migration and Metastatic Potential of Human Tumor Cells

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Tátrai, Enikő, Bartal, Alexandra, Gacs, Alexandra, Paku, Sándor, Kenessey, István, Garay, Tamás, Hegedűs, Balázs, Molnár, Eszter +5 more·2017·Oncotarget

Abstract

// Enikő Tátrai 1 , Alexandra Bartal 1, 2 , Alexandra Gacs 1 , Sándor Paku 3, 4 , István Kenessey 5, 6 , Tamás Garay 5 , Balázs Hegedűs 4, 7, 8 , Eszter Molnár 5 , Mihály T. Cserepes 1, 9, 10 , Zita Hegedűs 1 , Nóra Kucsma 9 , Gergely Szakács 9 and József Tóvári 1 1 Department of Experimental Pharmacology, National Institute of Oncology, Budapest, Hungary 2 Central Pharmacy, National Institute of Oncology, Budapest, Hungary 3 1st Institute of Pathology and Experimental Cancer Research, Semmelweis University, Budapest, Hungary 4 Tumor Progression Research Group, Hungarian Academy of Sciences, Semmelweis University, Budapest, Hungary 5 2nd Department of Pathology, Semmelweis University, Budapest, Hungary 6 National Cancer Registry, National Institute of Oncology, Budapest, Hungary 7 Department of Thoracic Surgery, Medical University of Vienna, Vienna, Austria 8 Department of Thoracic Surgery, Ruhrlandklinik, University Duisburg-Essen, Essen, Germany 9 Institute of Enzymology, Research Center for Natural Sciences, Hungarian Academy of Sciences, Budapest, Hungary 10 Semmelweis University, Budapest, Hungary Correspondence to: József Tóvári, email: tozsi@oncol.hu , jtovari@yahoo.com Keywords: tumor cell motility, hypoxia, small GTPases, RhoA activation, metastasis Received: November 09, 2016 Accepted: April 24, 2017 Published: May 11, 2017 ABSTRACT Tumor hypoxia promotes neoangiogenesis and contributes to the radio- and chemotherapy resistant and aggressive phenotype of cancer cells. However, the migratory response of tumor cells and the role of small GTPases regulating the organization of cytoskeleton under hypoxic conditions have yet to be established. Accordingly, we measured the proliferation, migration, RhoA activation, the mRNA and protein levels of hypoxia inducible factor-1alpha (HIF-1α) and three small G-proteins, Rac1, cdc42 and RhoA in a panel of five human tumor cell lines under normoxic and hypoxic conditions. Importantly, HT168-M1 human melanoma cells with high baseline migration capacity showed increased HIF-1α and small GTPases expression, RhoA activation and migration under hypoxia. These activities were blocked by anti- HIF-1α shRNA. Moreover, the in vivo metastatic potential was promoted by hypoxia mimicking CoCl 2 treatment and reduced upon inhibition of HIF-1α in a spleen to liver colonization experiment. In contrast, HT29 human colon cancer cells with low migration capacity showed limited response to in vitro hypoxia. The expression of the small G-proteins decreased both at mRNA and protein levels and the RhoA activation was reduced. Nevertheless, the number of lung or liver metastatic colonies disseminating from orthotopic HT29 grafts did not change upon CoCl 2 or chetomin treatment. Our data demonstrates that the hypoxic environment induces cell-type dependent changes in the levels and activation of small GTPases and results in varying migratory and metastasis promoting responses in different human tumor cell lines.

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  • In hypoxic tumor cells, HIF activates HRE genes essential for migration, invasion, and metastasis (AMF/AMFR, MET, CXCR4, MMP2/9, LOX, P4HA).

    “In hypoxic tumor cells, HIF activates several HRE genes that are essential for migration, invasion and metastasis: for example, autocrine motility factor and its receptor (AMF and AMFR); MET oncoprotein, receptor for scatter factor (paracrine regulators); CXCR4 chemokine receptor, matrix metalloproteinases such as MMP2/9 and collagen network remodeling lysil- and prolyl-hydroxylases (LOX and P4HA”

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Authors
Tátrai, E., Bartal, A., Gacs, A., Paku, S., Kenessey, I., Garay, T., Hegedűs, B., Molnár, E., Cserepes, M. T., Hegedűs, Z., Kucsma, N., Szakács, G., & Tóvári, J.
Affiliations
  • National Institute of Oncology (HU)
  • Semmelweis University (HU)
  • Institute of Molecular Life Sciences (HU)
Venue
Oncotarget
Published
2017-05-11
Volume
8
Issue
27
Pages
44498-44510
ISSN
1949-2553 (ISSN-L)
OpenAlex
W2612102682
Cited by
33
References
41
Citations by year
2026: 4 · 2025: 1 · 2024: 4 · 2023: 5 · 2022: 3 · 2021: 7 · 2020: 2 · 2019: 4 · 2018: 3
FWCI
0.83
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • Oncotarget (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Semmelweis University Repository (Semmelweis University) (submittedVersion)
Funders
  • Magyar Tudományos Akadémia
  • Nemzeti Kutatási Fejlesztési és Innovációs Hivatal (K116295)
  • National Research, Development and Innovation Office
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › Cancer, Hypoxia, and Metabolism
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Angiogenesis and VEGF in Cancer
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Mechanisms of cancer metastasis
Keywords
tumor hypoxia, HIF-1α, tumor cell migration, cell proliferation, metastasis, RhoA activation, small GTPases, Rac1, Cdc42, cytoskeleton, cell cycle, cell adhesion, tumor cell motility, cell type-dependent response, cancer stem cells, tumor microenvironment, hypoxia-responsive genes
MeSH terms
Animals, Hypoxia, Cell Movement, Cytoskeleton, Disease Models, Animal, Humans, Male, Neoplasm Metastasis, Neoplasms, Organ Specificity, Cell Hypoxia, Gene Expression, rhoA GTP-Binding Protein, Gene Silencing, Cell Line, Tumor, Cell Proliferation, Mice, Hypoxia-Inducible Factor 1, alpha Subunit, Heterografts

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