Dynamic and adaptive cancer stem cell population admixture in colorectal neoplasia

Ester Gil Vasquez, Nadia Nasreddin, Gabriel N. Valbuena, Eoghan J. Mulholland, Hayley L. Belnoue-Davis, Holly R. Eggington, Ryan O. Schenck, Valérie M. Wouters, Pratyaksha Wirapati, Kathryn Gilroy, Tamsin R. M. Lannagan, Dustin J. Flanagan, Arafath K. Najumudeen, Sulochana Omwenga, Amy M. B. McCorry, Alistair Easton, Viktor H. Koelzer, James E. East, Dion Morton, Livio TrusolinoTimothy Maughan, Andrew D. Campbell, Maurice B. Loughrey, Philip D. Dunne, Petros Tsantoulis, David J. Huels, Sabine Tejpar, Owen J. Sansom, Simon J. Leedham

Research output: Contribution to journalArticleAcademicpeer-review

26 Citations (Scopus)

Abstract

Intestinal homeostasis is underpinned by LGR5+ve crypt-base columnar stem cells (CBCs), but following injury, dedifferentiation results in the emergence of LGR5−ve regenerative stem cell populations (RSCs), characterized by fetal transcriptional profiles. Neoplasia hijacks regenerative signaling, so we assessed the distribution of CBCs and RSCs in mouse and human intestinal tumors. Using combined molecular-morphological analysis, we demonstrate variable expression of stem cell markers across a range of lesions. The degree of CBC-RSC admixture was associated with both epithelial mutation and microenvironmental signaling disruption and could be mapped across disease molecular subtypes. The CBC-RSC equilibrium was adaptive, with a dynamic response to acute selective pressure, and adaptability was associated with chemoresistance. We propose a fitness landscape model where individual tumors have equilibrated stem cell population distributions along a CBC-RSC phenotypic axis. Cellular plasticity is represented by position shift along this axis and is influenced by cell-intrinsic, extrinsic, and therapeutic selective pressures.
Original languageEnglish
Pages (from-to)1213-1228.e8
JournalCell Stem Cell
Volume29
Issue number8
DOIs
Publication statusPublished - 4 Aug 2022

Keywords

  • cell plasticity
  • colorectal cancer
  • colorectal neoplasia
  • intestinal polyps
  • intestinal stem cells
  • molecular phenotyping
  • stem cells

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