Cited by 135Neuroblastoma Research and TreatmentsCancer, Hypoxia, and MetabolismAngiogenesis and VEGF in Cancer

HIF-2α maintains an undifferentiated state in neural crest-like human neuroblastoma tumor-initiating cells

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Pietras, Alexander, Hansford, Loen M., Johnsson, A. Sofie, Bridges, Esther, Sjölund, Jonas, Gisselsson, David, Rehn, Matilda, Beckman, Siv +6 more·2009·Proceedings of the National Academy of Sciences

Abstract

High hypoxia-inducible factor-2α (HIF-2α) protein levels predict poor outcome in neuroblastoma, and hypoxia dedifferentiates cultured neuroblastoma cells toward a neural crest-like phenotype. Here, we identify HIF-2α as a marker of normoxic neural crest-like neuroblastoma tumor-initiating/stem cells (TICs) isolated from patient bone marrows. Knockdown of HIF-2α reduced VEGF expression and induced partial sympathetic neuronal differentiation when these TICs were grown in vitro under stem cell-promoting conditions. Xenograft tumors of HIF-2α-silenced cells were widely necrotic, poorly vascularized, and resembled the bulk of tumor cells in clinical neuroblastomas by expressing additional sympathetic neuronal markers, whereas control tumors were immature, well-vascularized, and stroma-rich. Thus, HIF-2α maintains an undifferentiated state of neuroblastoma TICs. Because low differentiation is associated with poor outcome and angiogenesis is crucial for tumor growth, HIF-2α is an attractive target for neuroblastoma therapy.

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  • HIF-2α knockdown in glioblastoma and neuroblastoma results in poorly vascularized tumors.

    “HIF-2α knockdown in glioblastoma and neuroblastoma results in poorly vascularized tumors (Li et al., 2009;Pietras et al., 2009).”

    From Therapeutic targeting of hypoxia and hypoxia-inducible factors in cancer (2016) · cites this paper as Pietras et al., 2009

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Authors
Pietras, A., Hansford, L. M., Johnsson, A. S., Bridges, E., Sjölund, J., Gisselsson, D., Rehn, M., Beckman, S., Noguera, R., Navarro, S., Cammenga, J., Fredlund, E., Kaplan, D. R., & Påhlman, S.
Affiliations
  • Lund University (SE)
  • University of Toronto (CA)
  • Departments of cClinical Genetics and
  • Universitat de València (ES)
Venue
Proceedings of the National Academy of Sciences
Published
2009-09-29
Volume
106
Issue
39
Pages
16805-16810
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W1967063990
Cited by
135
References
32
Citations by year
2026: 1 · 2025: 2 · 2024: 2 · 2023: 4 · 2022: 5 · 2021: 6 · 2020: 10 · 2019: 5 · 2018: 11 · 2017: 13 · 2016: 9 · 2015: 8 · 2014: 11 · 2013: 10 · 2012: 14
FWCI
8.11
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • Lund University Publications (Lund University) (submittedVersion)
Topics
  • Health Sciences › Medicine › Neurology › Neuroblastoma Research and Treatments
  • 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
Keywords
HIF-2α, neuroblastoma, cancer stem cells, neural crest-like cells, hypoxia, neuronal differentiation, vascular endothelial growth factor, tumor angiogenesis, tumor necrosis, bone marrow, stem cell niche, therapeutic target
MeSH terms
Endothelial PAS Domain-Containing Protein 1, Animals, Cell Differentiation, Female, Humans, Mice, Nude, Neural Crest, Neuroblastoma, Down-Regulation, Cell Hypoxia, Vascular Endothelial Growth Factors, Cell Line, Tumor, Mice, Basic Helix-Loop-Helix Proteins, Basic Helix-Loop-Helix Transcription Factors

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