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Updated: Jun 2, 2026

Monitoring Functionality and Morphology of Vasculature Recruited by Factors Secreted by Fast-growing Tumor-generating Cells
Published on: November 23, 2014
Potential role of soluble VEGFR-1 in antiangiogenesis therapy for cancer
Feng Yang1, Chen Jin, Yong-jian Jiang
1Pancreatic Disease Institute, Department of Pancreatic Surgery, Huashan Hospital, 12 Central Urumqi Road, Shanghai Medical College, Fudan University, Shanghai 200040, China.
Abstract:
Antiangiogenesis therapy for cancer may inhibit tumor growth and metastasis when combined with chemotherapy, and has received a great deal of attention over recent years. However, accurate assessments of biological efficacy and toxicity are major hurdles for this approach. Soluble VEGF receptor-1 (sFlt-1) has been reported to have a role in the pathogenesis of preeclampsia, the hallmark of which is similar to the toxicities related to antiangiogenesis therapy. Clinical evidence and animal studies support the hypothesis that sFlt-1 may contribute to hypertension and proteinuria in patients treated with anti-VEGF agents. The intratumoral imbalance between sFlt-1 and VEGF levels correlates with the malignancy grades of tumors, survival and responsiveness to therapy. The therapeutic potential of sFlt-1 as an antiangiogenic agent has been validated by an increasing number of preclinical studies. Furthermore, antiangiogenesis therapy changes the concentration of circulating VEGF, PlGF, sFlt-1, soluble VEGFR-2 and even soluble VEGFR-3, with some of these being identified as potential biomarkers of response and toxicity. All these factors suggest that sFlt-1 may prove invaluable for driving the future development of molecular therapeutics with novel targets and mechanisms of action, and its impact on antiangiogenesis therapy in cancers needs further investigation.
Insights
Soluble VEGF receptor-1 (sFlt-1) shows potential in antiangiogenesis cancer therapy, possibly mitigating toxicities like hypertension and proteinuria. Further research is needed to explore its therapeutic impact and role as a biomarker in cancer treatment.
Area of Science:
- Oncology
- Molecular Biology
- Pharmacology
Background:
- Antiangiogenesis therapy is a promising cancer treatment, but assessing its efficacy and toxicity remains challenging.
- Soluble VEGF receptor-1 (sFlt-1) is implicated in preeclampsia, sharing toxicities with antiangiogenesis treatments.
- Intratumoral sFlt-1 and VEGF levels correlate with tumor malignancy, patient survival, and therapy response.
Purpose of the Study:
- To investigate the role of sFlt-1 in antiangiogenesis therapy for cancer.
- To explore sFlt-1's potential as a therapeutic agent and biomarker for treatment response and toxicity.
Main Methods:
- Review of clinical evidence and animal studies on sFlt-1 and anti-VEGF agents.
- Analysis of the correlation between intratumoral sFlt-1/VEGF levels and cancer characteristics.
- Examination of changes in circulating angiogenic factors during antiangiogenesis therapy.
Main Results:
- sFlt-1 may contribute to hypertension and proteinuria in patients receiving anti-VEGF therapy.
- Preclinical studies validate sFlt-1's therapeutic potential as an antiangiogenic agent.
- Antiangiogenesis therapy alters circulating levels of VEGF, sFlt-1, and other VEGFRs, suggesting biomarker potential.
Conclusions:
- sFlt-1 holds promise for developing novel molecular therapeutics in oncology.
- Understanding sFlt-1's impact is crucial for advancing antiangiogenesis cancer therapy.
- Circulating angiogenic factors may serve as biomarkers for antiangiogenesis therapy efficacy and toxicity.
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