ArticleOncogene2008
Glioblastoma-secreted factors induce IGFBP7 and angiogenesis by modulating Smad-2-dependent TGF-beta signaling.
Article in Oncogene, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 63 papers.
What it found
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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.
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.
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Who cites it
63 citing papers in PubMed, 114 citations in OpenAlex.
- Harnessing the role of transforming growth factor-β in glioblastoma: a focus on phytochemicals.Medical oncology (Northwood, London, England) · 2025Review
- Interpretable Transfer Learning for Cancer Drug Resistance: Candidate Target Identification.Current issues in molecular biology · 2025Article
- The Roles of RNA-Binding Proteins in Vasculogenic Mimicry Regulation in Glioblastoma.International journal of molecular sciences · 2025Review
- Proteomic Insights into Human Limbal Epithelial Progenitor-Derived Small Extracellular Vesicles.Stem cell reviews and reports · 2025Article
- Understanding Neovascularization in Glioblastoma: Insights from the Current Literature.International journal of molecular sciences · 2025Review
- Association between Insulin-Like Growth Factor Binding Protein-7 and Heart Failure.Current medicinal chemistry · 2025Review
- Insulin-like growth factor family and its impact on pulmonary arterial hypertension: a review.Frontiers in physiology · 2025Review
- Loss-of-function of RNA-binding protein PRRC2B causes translational defects and congenital cardiovascular malformation.medRxiv : the preprint server for health sciences · 2024Article
- Review
- The TGF-β Family in Glioblastoma.International journal of molecular sciences · 2024Review
- Insulin-like growth factor-binding protein 7 (IGFBP7): A microenvironment-dependent regulator of angiogenesis and vascular remodeling.Frontiers in cell and developmental biology · 2024Review
- Angiogenesis modulated by CD93 and its natural ligands IGFBP7 and MMRN2: a new target to facilitate solid tumor therapy by vasculature normalization.Cancer cell international · 2023Review
- Co-amplified with PDGFRA, IGFBP7 is a prognostic biomarker correlated with the immune infiltrations of glioma.Cancer medicine · 2023Article
- CD93 is Associated with Glioma-related Malignant Processes and Immunosuppressive Cell Infiltration as an Inspiring Biomarker of Survivance.Journal of molecular neuroscience : MN · 2022Article
- Cardiac fibroblasts regulate the development of heart failure via Htra3-TGF-β-IGFBP7 axis.Nature communications · 2022Article
- Association of insulin-like growth factor binding protein-7 promoter methylation with esophageal cancer in peripheral blood.Molecular biology reports · 2022Article
- IGFBPs were associated with stemness, inflammation, extracellular matrix remodeling and poor prognosis of low-grade glioma.Frontiers in endocrinology · 2022Article
- Single domain antibody-based vectors in the delivery of biologics across the blood-brain barrier: a review.Drug delivery and translational research · 2021Review
- Review
- Effect of PACAP on Hypoxia-Induced Angiogenesis and Epithelial-Mesenchymal Transition in Glioblastoma.Biomedicines · 2021Article
3 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Insulin-like growth factor-binding protein 7 (IGFBP7) is a selective biomarker of glioblastoma (GBM) vessels, strongly expressed in tumor endothelial cells and vascular basement membrane. IGFBP7 gene regulation and its potential role in tumor angiogenesis remain unclear. Mechanisms of IGFBP7 induction and its angiogenic capacity were examined in human brain endothelial cells (HBECs) exposed to tumor-like conditions. HBEC treated with GBM cell (U87MG)-conditioned media (-CM) exhibited fourfold upregulation of IGFBP7 mRNA and protein compared to control cells. IGFBP7 gene regulation in HBEC was methylation independent. U87MG-CM analysed by enzyme-linked immunosorbent assay contained approximately 5 pM transforming growth factor (TGF)-beta1, a concentration sufficient to stimulate IGFBP7 in HBEC to similar levels as U87MG-CM. Both pan-TGF-beta-neutralizing antibody (1D11) and the TGF-beta1 receptor (activin receptor-like kinase 5, ALK5) antagonist, SB431542, blocked U87MG-CM-induced IGFBP7 expression in HBEC, indicating that TGF-beta1 is an important tumor-secreted effector capable of IGFBP7 induction in endothelial cells. HBEC exposed to either U87MG-CM or IGFBP7 protein exhibited increased capillary-like tube (CLT) formation in Matrigel. Both TGF-beta1- and U87MG-CM-induced Smad-2 phosphorylation and U87MG-CM-induced CLT formation in HBEC were inhibited by the ALK5 antagonist, SB431542. These data suggest that proangiogenic IGFBP7 may be induced in brain endothelial cells by TGF-betas secreted by GBM, most likely through TGF-beta1/ALK5/Smad-2 pathway.
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Registered trials
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.