Serum VEGF Levels and Early Relapse in Osteosarcoma
Author Information
Author(s): Kaya M, Wada T, Kawaguchi S, Nagoya S, Yamashita T, Abe Y, Hiraga H, Isu K, Shindoh M, Higashino F, Okada F, Tada M, Yamawaki S, Ishii S
Primary Institution: National Sapporo Hospital and Sapporo Medical University School of Medicine
Hypothesis
Does the pre-therapeutic serum level of vascular endothelial growth factor (VEGF) correlate with early relapse in osteosarcoma patients?
Conclusion
Higher pre-therapeutic serum VEGF levels are associated with early disease relapse in osteosarcoma patients.
Supporting Evidence
- Serum VEGF levels were significantly higher in patients who relapsed compared to those who did not.
- The study found a positive correlation between serum VEGF levels and microvessel density in tumor biopsies.
- Patients with a VEGF-positive tumor had higher serum VEGF levels than those with a VEGF-negative tumor.
Takeaway
Doctors found that measuring a substance called VEGF in the blood can help predict if kids with a type of bone cancer called osteosarcoma will get sick again after treatment.
Methodology
The study measured serum levels of VEGF, bFGF, and PlGF in 16 osteosarcoma patients before treatment and analyzed correlations with disease relapse and microvessel density.
Potential Biases
Potential bias due to the small number of participants and the observational nature of the study.
Limitations
The study had a small sample size and was conducted at a single institution, which may limit the generalizability of the findings.
Participant Demographics
16 patients (4 women and 12 men) aged 20 to 69 years, average age 31.2 years.
Statistical Information
P-Value
0.0009
Confidence Interval
95% CI=551.0–2075.5 pg/ml
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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