Endothelial Cells Promote the Colorectal Cancer Stem Cell Phenotype through a Soluble Form of Jagged-1

  • Jia Lu
  • , Xiangcang Ye
  • , Fan Fan
  • , Ling Xia
  • , Rajat Bhattacharya
  • , Seth Bellister
  • , Federico Tozzi
  • , Eric Sceusi
  • , Yunfei Zhou
  • , Isamu Tachibana
  • , Dipen M. Maru
  • , David H. Hawke
  • , Janusz Rak
  • , Sendurai A. Mani
  • , Patrick Zweidler-McKay
  • , Lee M. Ellis

Research output: Contribution to journalArticlepeer-review

402 Scopus citations

Abstract

We report a paracrine effect whereby endothelial cells (ECs) promote the cancer stem cell (CSC) phenotype of human colorectal cancer (CRC) cells. We showed that, without direct cell-cell contact, ECs secrete factors that promoted the CSC phenotype in CRC cells via Notch activation. In human CRC specimens, CD133 and Notch intracellular domain-positive CRC cells colocalized in perivascular regions. An EC-derived, soluble form of Jagged-1, via ADAM17 proteolytic activity, led to Notch activation in CRC cells in a paracrine manner; these effects were blocked by immunodepletion of Jagged-1 in EC-conditioned medium or blockade of ADAM17 activity. Collectively, ECs play an active role in promoting Notch signaling and the CSC phenotype by secreting soluble Jagged-1.

Original languageEnglish (US)
Pages (from-to)171-185
Number of pages15
JournalCancer Cell
Volume23
Issue number2
DOIs
StatePublished - Feb 11 2013
Externally publishedYes

ASJC Scopus subject areas

  • Oncology
  • Cancer Research
  • Cell Biology

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