Multi-organ Site Metastatic Reactivation Mediated by Non-canonical Discoidin Domain Receptor 1 Signaling

Hua Gao, Goutam Chakraborty, Zhanguo Zhang, Intissar Akalay, Mayur Gadiya, Yaquan Gao, Surajit Sinha, Jian Hu, Cizhong Jiang, Muzaffar Akram, Edi Brogi, Birgit Leitinger, Filippo G Giancotti

Research output: Contribution to journalArticlepeer-review

167 Scopus citations

Abstract

Genetic screening identifies the atypical tetraspanin TM4SF1 as a strong mediator of metastatic reactivation of breast cancer. Intriguingly, TM4SF1 couples the collagen receptor tyrosine kinase DDR1 to the cortical adaptor syntenin 2 and, hence, to PKCα. The latter kinase phosphorylates and activates JAK2, leading to the activation of STAT3. This non-canonical mechanism of signaling induces the expression of SOX2 and NANOG; sustains the manifestation of cancer stem cell traits; and drives metastatic reactivation in the lung, bone, and brain. Bioinformatic analyses and pathological studies corroborate the clinical relevance of these findings. We conclude that non-canonical DDR1 signaling enables breast cancer cells to exploit the ubiquitous interstitial matrix component collagen I to undergo metastatic reactivation in multiple target organs.

Original languageEnglish (US)
Pages (from-to)47-62
Number of pages16
JournalCell
Volume166
Issue number1
DOIs
StatePublished - Jun 30 2016

ASJC Scopus subject areas

  • General Biochemistry, Genetics and Molecular Biology

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