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Updated: Feb 13, 2026

Anticancer Efficacy of Photodynamic Therapy with Lung Cancer-Targeted Nanoparticles
Published on: December 1, 2016
VEGF-R1 as a Potential Molecular Target for Anticancer Therapy
E G Tyrsina1, S I Nikulitskiy2, A N Inshakov2
1Blokhin Russian Cancer Research Center, Ministry of Health of the Russian Federation, Moscow, 115478, Russia. tyrsina@yandex.ru.
Abstract:
The possibility of using VEGF-R1 receptor for targeted therapy in oncology was investigated. Using the approach to measuring the protein content in intact nuclei of cells, which was developed by us, we showed the presence of this receptor in the nuclei of tumor, but not normal cells. A direct correlation between the level of VEGF-R1 expression in the nucleus and the degree of malignancy of tumor cells, indicating the prognostic value of this parameter, was found. The mechanisms of the functioning of this receptor and the pathways of inhibiting its activity are discussed, and the validity of the selection of VEGF-R1 as a molecular target for anticancer therapy is conformed.
Insights
Vascular Endothelial Growth Factor Receptor 1 (VEGF-R1) is present in tumor cell nuclei, not normal cells. Its expression level correlates with tumor malignancy, supporting its use as a target for novel cancer therapies.
Area of Science:
- Oncology
- Molecular Biology
- Cell Biology
Background:
- The Vascular Endothelial Growth Factor Receptor 1 (VEGF-R1) plays a role in tumor angiogenesis and progression.
- Targeted therapies aim to inhibit specific molecules driving cancer growth.
Purpose of the Study:
- To investigate the potential of VEGF-R1 as a molecular target for oncology.
- To determine the localization and prognostic significance of VEGF-R1 in tumor cells.
Main Methods:
- Developed a novel method for measuring protein content in intact cell nuclei.
- Quantified VEGF-R1 expression in the nuclei of tumor and normal cells.
Main Results:
- VEGF-R1 was detected in the nuclei of tumor cells exclusively, not in normal cells.
- A direct correlation was established between nuclear VEGF-R1 expression levels and the degree of tumor cell malignancy.
- This correlation suggests prognostic value for nuclear VEGF-R1 levels.
Conclusions:
- VEGF-R1 is a promising molecular target for anticancer therapy.
- Nuclear expression of VEGF-R1 serves as a potential biomarker for tumor malignancy and prognosis.
- Further research into inhibiting VEGF-R1 activity is warranted for therapeutic development.
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