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Three-Dimensional Bone Extracellular Matrix Model for Osteosarcoma
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
PubMed
Abstract

Insights

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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