Salt-inducible kinase 2 couples ovarian cancer cell metabolism with survival at the adipocyte-rich metastatic niche

Fabrizio Miranda, David Mannion, Shujuan Liu, Yiyan Zheng, Lingegowda S Mangala, Clara Redondo, Sandra Herrero-Gonzalez, Ruoyan Xu, Charlotte Taylor, Donatien Fotso Chedom, Mohammad Karaminejadranjbar, Ashwag Albukhari, Dahai Jiang, Sunila Pradeep, Cristian Rodriguez-Aguayo, Gabriel Lopez-Berestein, Eidarus Salah, Kamal R Abdul Azeez, Jonathan M Elkins, Leticia CampoKevin A Myers, Daniel Klotz, Serena Bivona, Sunanda Dhar, Robert C Bast, Hideyuki Saya, Hwan Geun Choi, Nathanael S Gray, Roman Fischer, Benedikt M Kessler, Christopher Yau, Anil K Sood, Takeshi Motohara, Stefan Knapp, Ahmed Ashour Ahmed

Research output: Contribution to journalArticlepeer-review

80 Citations (Scopus)

Abstract

The adipocyte-rich microenvironment forms a niche for ovarian cancer metastasis, but the mechanisms driving this process are incompletely understood. Here we show that salt-inducible kinase 2 (SIK2) is overexpressed in adipocyte-rich metastatic deposits compared with ovarian primary lesions. Overexpression of SIK2 in ovarian cancer cells promotes abdominal metastasis while SIK2 depletion prevents metastasis in vivo. Importantly, adipocytes induce calcium-dependent activation and autophosphorylation of SIK2. Activated SIK2 plays a dual role in augmenting AMPK-induced phosphorylation of acetyl-CoA carboxylase and in activating the PI3K/AKT pathway through p85α-S154 phosphorylation. These findings identify SIK2 at the apex of the adipocyte-induced signaling cascades in cancer cells and make a compelling case for targeting SIK2 for therapy in ovarian cancer.

Original languageEnglish
Pages (from-to)273-289
Number of pages17
JournalCancer Cell
Volume30
Issue number2
Early online date28 Jul 2016
DOIs
Publication statusPublished - 8 Aug 2016

Keywords

  • AMP-Activated Protein Kinases/metabolism
  • Acetyl-CoA Carboxylase/metabolism
  • Adipocytes/enzymology
  • Animals
  • Female
  • Heterografts
  • Humans
  • Mice
  • Mice, Inbred C57BL
  • Mice, Nude
  • Neoplasm Metastasis
  • Oncogene Protein v-akt/metabolism
  • Ovarian Neoplasms/enzymology
  • Phosphatidylinositol 3-Kinases/metabolism
  • Protein-Serine-Threonine Kinases/metabolism
  • Signal Transduction

Fingerprint

Dive into the research topics of 'Salt-inducible kinase 2 couples ovarian cancer cell metabolism with survival at the adipocyte-rich metastatic niche'. Together they form a unique fingerprint.

Cite this