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Updated: Jun 21, 2026
08:07
Three-Dimensional Bone Extracellular Matrix Model for Osteosarcoma
Published on: April 12, 2019
Correlation between clinical outcome and growth factor pathway expression in osteogenic sarcoma
Ayesha Abdeen1, Alexander J Chou, John H Healey
1Department of Orthopaedic Surgery, Memorial Sloan-Kettering Cancer Center, Weill Medical College of Cornell University, New York, NY, USA.
Cancer
|August 12, 2009
Summary
Vascular Endothelial Growth Factor Receptor 3 (VEGF-R3) expression negatively correlates with osteosarcoma patient survival. VEGF-B indicates a poor response to chemotherapy, highlighting the VEGF pathway's role in osteosarcoma progression.
Area of Science:
- Oncology
- Molecular Biology
- Biochemistry
Background:
- Osteogenic sarcoma exhibits variable expression of key cell-signaling proteins like VEGF, IGF, EGF, AKT, PDGF, MAPK, and p70S6 kinase.
- These protein expressions may hold future significance for osteosarcoma prognostication and targeted therapeutic strategies.
- The study aimed to investigate the correlation between the expression of these proteins and clinical outcomes in osteosarcoma patients.
Purpose of the Study:
- To determine the relationship between the expression of specific cell-signaling proteins and clinical outcomes in osteogenic sarcoma.
- To identify potential prognostic markers within the investigated signaling pathways.
- To explore the role of these proteins in predicting patient survival and response to chemotherapy.
Main Methods:
- Utilized a paraffin-embedded tissue microarray of 48 human osteogenic sarcoma specimens.
- Performed immunohistochemical staining for VEGF, IGF, EGF, AKT, PDGF, MAPK, and p70S6 kinase (total and phosphorylated forms).
- Correlated protein expression with overall survival (OS), event-free survival (EFS), histologic response to chemotherapy, and serum markers.
Main Results:
- A negative correlation was observed between VEGF receptor 3 (VEGF-R3) expression and both OS and EFS.
- VEGF-B expression was associated with a poor histologic response to chemotherapy.
- Multiple correlations were found between proteins from various signaling pathways (P < .05), while serum markers showed no significant correlation with specific proteins.
Conclusions:
- The VEGF signaling pathway appears to be critically involved in osteogenic sarcoma.
- Specific proteins within the VEGF pathway demonstrate prognostic potential.
- Further investigations are warranted to elucidate the prognostic value of these identified proteins in osteosarcoma.
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