2014
DOI: 10.1016/j.celrep.2013.12.011
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Hypoxia Induces VEGF-C Expression in Metastatic Tumor Cells via a HIF-1α-Independent Translation-Mediated Mechanism

Abstract: Various tumors metastasize via lymph vessels and lymph nodes to distant organs. Even though tumors are hypoxic, the mechanisms of how hypoxia regulates lymphangiogenesis remain poorly characterized. Here, we show that hypoxia reduced vascular endothelial growth factor C (VEGF-C) transcription and cap-dependent translation via the upregulation of hypophosphorylated 4E-binding protein 1 (4E-BP1). However, initiation of VEGF-C translation was induced by hypoxia through an internal ribosome entry site (IRES)-depen… Show more

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Cited by 108 publications
(106 citation statements)
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“…Uncontrolled vascular growth is a marker for tumors, in addition to being a target for tumor treatment. In tissues that are deficient of oxygen, HIF-1α is significantly upregulated, as it is a key transcription factor for the regulation of oxygen homeostasis (12,13). The mechanism underlying this function is the promotion of angiogenesis, which enhances blood supply and ameliorates oxygen deficiency.…”
Section: Discussionmentioning
confidence: 99%
“…Uncontrolled vascular growth is a marker for tumors, in addition to being a target for tumor treatment. In tissues that are deficient of oxygen, HIF-1α is significantly upregulated, as it is a key transcription factor for the regulation of oxygen homeostasis (12,13). The mechanism underlying this function is the promotion of angiogenesis, which enhances blood supply and ameliorates oxygen deficiency.…”
Section: Discussionmentioning
confidence: 99%
“…Although LECs are capable of producing apelin under hypoxic conditions in vitro, we cannot exclude the importance of cardiomyocytes as a potent source of apelin in the heart, arguing for a paracrine effect of apelin on lymphatic endothelium. Hypoxia is a driving force of tumor lymphangiogenesis (45). In that context, developing lymphatic vessels are more permeable and unstable, which is an aggravating factor in tumor metastasis.…”
Section: Discussionmentioning
confidence: 99%
“…Le système lymphatique, très présent dans le derme, participe également activement au déve-loppement de pathologies inflammatoires comme le psoriasis [19] (Figure 1). La lymphangiogenèse est stimulée par des facteurs de croissance lymphangiogéniques, comme les VEGF(vascular endothelial growth factor)-C et -D. Ces facteurs subissent des maturations post-traductionnelles et protéolytiques avant de se lier à leur récepteur, le VEGFR-3 (un récepteur à activité tyrosine kinase), exprimé à la surface des cellules endothéliales lymphatiques (CEL) [20][21][22]. Le VEGF-C est indispensable au développement embryonnaire des vaisseaux lymphatiques à partir de la formation des sacs lymphatiques [23].…”
Section: Pathologies Associées Au Système Lymphatiqueunclassified