Journal
CELL REPORTS
Volume 12, Issue 6, Pages 992-1005Publisher
CELL PRESS
DOI: 10.1016/j.celrep.2015.07.010
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Funding
- FWO-Vlaanderen
- Vlaamse Liga tegen Kanker
- Marie Curie-IEF
- Agentschap voor Innovatie door Wetenschap en Technologie
- Cancer Research UK
- Methusalem funding [GOA2006/11]
- FWO [G.0598.12, G.0692.09, G.0532.1, G.0817.11]
- FWO Krediet aan navorsers [1.5.202.10.N]
- ERC Advanced Research [EU-ERC269073]
- IUAP P7
- Cancer Research UK [12935] Funding Source: researchfish
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Several questions about the role of the oxygen sensor prolyl-hydroxylase 2 (PHD2) in cancer have not been addressed. First, the role of PHD2 in metastasis has not been studied in a spontaneous tumor model. Here, we show that global PHD2 haplodeficiency reduced metastasis without affecting tumor growth. Second, it is unknown whether PHD2 regulates cancer by affecting cancer-associated fibroblasts (CAFs). We show that PHD2 haplodeficiency reduced metastasis via two mechanisms: (1) by decreasing CAF activation, matrix production, and contraction by CAFs, an effect that surprisingly relied on PHD2 deletion in cancer cells, but not in CAFs; and (2) by improving tumor vessel normalization. Third, the effect of concomitant PHD2 inhibition in malignant and stromal cells (mimicking PHD2 inhibitor treatment) is unknown. We show that global PHD2 haplodeficiency, induced not only before but also after tumor onset, impaired metastasis. These findings warrant investigation of PHD2's therapeutic potential.
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