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Vascular endothelial growth factor-dependent spatiotemporal dual roles of placental growth factor in modulation of angiogenesis and tumor growth
Karolinska Institute, Sweden .
Karolinska Institute, Sweden .
Karolinska Institute, Sweden .
Karolinska Institute, Sweden .
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2013 (English)In: Proceedings of the National Academy of Sciences of the United States of America, ISSN 0027-8424, E-ISSN 1091-6490, Vol. 110, no 34, 13932-13937 p.Article in journal (Refereed) Published
Abstract [en]

Placental growth factor (PIGF) remodels tumor vasculatures toward a normalized phenotype, which affects tumor growth, invasion and drug responses. However, the coordinative and spatiotemporal relation between PIGF and VEGF in modulation of tumor angiogenesis and vascular remodeling is less understood. Here we report that PlGF positively and negatively modulate tumor growth, angiogenesis, and vascular remodeling through a VEGF-dependent mechanism. In two independent tumor models, we show that PlGF inhibited tumor growth and angiogenesis and displayed a marked vascular remodeling effect, leading to normalized microvessels with infrequent vascular branches and increased perivascular cell coverage. Surprisingly, elimination of VEGF gene (i.e., VEGF-null) in PIGF-expressing tumors resulted in (i) accelerated tumor growth rates and angiogenesis and (ii) complete attenuation of PIGF-induced vascular normalization. Thus, PIGF positively and negatively modulates tumor growth, angiogenesis, and vascular remodeling through VEGF-dependent spatiotemporal mechanisms. Our data uncover molecular mechanisms underlying the complex interplay between PIGF and VEGF in modulation of tumor growth and angiogenesis, and have conceptual implication for antiangiogenic cancer therapy.

Place, publisher, year, edition, pages
National Academy of Sciences , 2013. Vol. 110, no 34, 13932-13937 p.
Keyword [en]
VEGF receptor signaling, neovascularization, antiangiogenic therapy
National Category
Medical and Health Sciences
Identifiers
URN: urn:nbn:se:liu:diva-97663DOI: 10.1073/pnas.1309629110ISI: 000323271400060OAI: oai:DiVA.org:liu-97663DiVA: diva2:649984
Note

Funding Agencies|Swedish Research Council||Swedish Cancer Foundation||Karolinska Institute Foundation||Karolinska Institute Distinguished Professor Award||Torsten Soderbergs Foundation||Soderbergs Stiftelse||Tianjin Natural Science Foundation (CMM-Tianjin) Grant|09ZCZDSF04400|ImClone/Eli Lilly||European Union|222741|European Research Council Advanced ANGIOFAT Grant Project|250021|

Available from: 2013-09-19 Created: 2013-09-19 Last updated: 2017-12-06

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Cao, Ziquan

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