Chemokine receptor CXCR4 downregulated by von Hippel-Lindau tumour suppressor pVHL.

TY - JOUR

T1 - Chemokine receptor CXCR4 downregulated by von Hippel-Lindau tumour suppressor pVHL.

AU - Staller, Peter

AU - Sulitkova, Jitka

AU - Lisztwan, Joanna

AU - Moch, Holger

AU - Oakeley, Edward J

AU - Krek, Wilhelm

N1 - Keywords: Adenocarcinoma, Clear Cell; Anoxia; Breast Neoplasms; Cell Line; Chemokine CXCL12; Chemokines, CXC; Chemotaxis; Cloning, Molecular; DNA-Binding Proteins; Down-Regulation; Gene Expression Regulation, Neoplastic; Humans; Hypoxia-Inducible Factor 1; Hypoxia-Inducible Factor 1, alpha Subunit; Kidney Neoplasms; Ligases; Neoplasm Metastasis; Nuclear Proteins; Organ Specificity; Promoter Regions (Genetics); RNA, Messenger; Receptors, CXCR4; Transcription Factors; Tumor Suppressor Proteins; Ubiquitin-Protein Ligases; Von Hippel-Lindau Tumor Suppressor Protein

PY - 2003

Y1 - 2003

N2 - Organ-specific metastasis is governed, in part, by interactions between chemokine receptors on cancer cells and matching chemokines in target organs. For example, malignant breast cancer cells express the chemokine receptor CXCR4 and commonly metastasize to organs that are an abundant source of the CXCR4-specific ligand stromal cell-derived factor-1alpha (ref. 1). It is still uncertain how an evolving tumour cell is reprogrammed to express CXCR4, thus implementing the tendency to metastasize to specific organs. Here we show that the von Hippel-Lindau tumour suppressor protein pVHL negatively regulates CXCR4 expression owing to its capacity to target hypoxia-inducible factor (HIF) for degradation under normoxic conditions. This process is suppressed under hypoxic conditions, resulting in HIF-dependent CXCR4 activation. An analysis of clear cell renal carcinoma that manifests mutation of the VHL gene in most cases revealed an association of strong CXCR4 expression with poor tumour-specific survival. These results suggest a mechanism for CXCR4 activation during tumour cell evolution and imply that VHL inactivation acquired by incipient tumour cells early in tumorigenesis confers not only a selective survival advantage but also the tendency to home to selected organs.

AB - Organ-specific metastasis is governed, in part, by interactions between chemokine receptors on cancer cells and matching chemokines in target organs. For example, malignant breast cancer cells express the chemokine receptor CXCR4 and commonly metastasize to organs that are an abundant source of the CXCR4-specific ligand stromal cell-derived factor-1alpha (ref. 1). It is still uncertain how an evolving tumour cell is reprogrammed to express CXCR4, thus implementing the tendency to metastasize to specific organs. Here we show that the von Hippel-Lindau tumour suppressor protein pVHL negatively regulates CXCR4 expression owing to its capacity to target hypoxia-inducible factor (HIF) for degradation under normoxic conditions. This process is suppressed under hypoxic conditions, resulting in HIF-dependent CXCR4 activation. An analysis of clear cell renal carcinoma that manifests mutation of the VHL gene in most cases revealed an association of strong CXCR4 expression with poor tumour-specific survival. These results suggest a mechanism for CXCR4 activation during tumour cell evolution and imply that VHL inactivation acquired by incipient tumour cells early in tumorigenesis confers not only a selective survival advantage but also the tendency to home to selected organs.

U2 - 10.1038/nature01874

DO - 10.1038/nature01874

M3 - Journal article

C2 - 13679920

SN - 0028-0836

VL - 425

SP - 307

EP - 311

JO - Nature

JF - Nature

IS - 6955

ER -