Author
Listed:
- Shigeru Hashimoto
(Graduate School of Medicine, Hokkaido University)
- Shuji Mikami
(Keio University Hospital
Present address: Division of Diagnostic Pathology, Keio University School of Medicine)
- Hirokazu Sugino
(Graduate School of Medicine, Hokkaido University)
- Ayumu Yoshikawa
(Graduate School of Medicine, Hokkaido University)
- Ari Hashimoto
(Graduate School of Medicine, Hokkaido University)
- Yasuhito Onodera
(Graduate School of Medicine, Hokkaido University)
- Shotaro Furukawa
(Graduate School of Medicine, Hokkaido University
Graduate School of Medicine, Hokkaido University)
- Haruka Handa
(Graduate School of Medicine, Hokkaido University)
- Tsukasa Oikawa
(Graduate School of Medicine, Hokkaido University)
- Yasunori Okada
(Keio University School of Medicine)
- Mototsugu Oya
(Keio University School of Medicine)
- Hisataka Sabe
(Graduate School of Medicine, Hokkaido University)
Abstract
Acquisition of mesenchymal properties by cancer cells is critical for their malignant behaviour, but regulators of the mesenchymal molecular machinery and how it is activated remain elusive. Here we show that clear cell renal cell carcinomas (ccRCCs) frequently utilize the Arf6-based mesenchymal pathway to promote invasion and metastasis, similar to breast cancers. In breast cancer cells, ligand-activated receptor tyrosine kinases employ GEP100 to activate Arf6, which then recruits AMAP1; and AMAP1 then binds to the mesenchymal-specific protein EPB41L5, which promotes epithelial–mesenchymal transition and focal adhesion dynamics. In renal cancer cells, lysophosphatidic acid (LPA) activates Arf6 via its G-protein-coupled receptors, in which GTP-Gα12 binds to EFA6. The Arf6-based pathway may also contribute to drug resistance. Our results identify a specific mesenchymal molecular machinery of primary ccRCCs, which is triggered by a product of autotaxin and it is associated with poor outcome of patients.
Suggested Citation
Shigeru Hashimoto & Shuji Mikami & Hirokazu Sugino & Ayumu Yoshikawa & Ari Hashimoto & Yasuhito Onodera & Shotaro Furukawa & Haruka Handa & Tsukasa Oikawa & Yasunori Okada & Mototsugu Oya & Hisataka S, 2016.
"Lysophosphatidic acid activates Arf6 to promote the mesenchymal malignancy of renal cancer,"
Nature Communications, Nature, vol. 7(1), pages 1-11, April.
Handle:
RePEc:nat:natcom:v:7:y:2016:i:1:d:10.1038_ncomms10656
DOI: 10.1038/ncomms10656
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