Protocols for analyzing the role of Paneth cells in regenerating the murine intestine using conditional cre-lox mouse models

Parry, Lee ORCID: https://orcid.org/0000-0002-4467-9196, Young, Madeleine, El Marjou, Fatima and Clarke, Alan Richard ORCID: https://orcid.org/0000-0002-4281-426X 2015. Protocols for analyzing the role of Paneth cells in regenerating the murine intestine using conditional cre-lox mouse models. Journal of Visualized Experiments (105) , e53429. 10.3791/53429

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Abstract

The epithelial surface of the mammalian intestine is a dynamic tissue that renews every 3 - 7 days. Understanding this renewal process identified a population of rapidly cycling intestinal stem cells (ISCs) characterized by their expression of the Lgr5 gene. These are supported by a quiescent stem cell population, marked by Bmi-1 expression, capable of replacing them in the event of injury. Investigating the interactions between these populations is crucial to understanding their roles in disease and cancer. The ISCs exist within crypts on the intestinal surface, these niches support the ISC in replenishing the epithelia. The interaction between active and quiescent ISCs likely involves other differentiated cells within the niche, as it has previously been demonstrated that the ‘‘stemness’’ of the Lgr5 ISC is closely tied to the presence of their neighboring Paneth cells. Using conditional cre-lox mouse models we tested the effect of deleting the majority of active ISCs in the presence or absence of the Paneth cells. Here we describe the techniques and analysis undertaken to characterize the intestine and demonstrate that the Paneth cells play a crucial role within the ISC niche in aiding recovery following substantial insult.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Biosciences European Cancer Stem Cell Research Institute (ECSCRI)
ISSN:	1940-087X
Funders:	Cancer Research UK
Date of First Compliant Deposit:	30 March 2016
Last Modified:	12 May 2023 20:10
URI:	https://orca.cardiff.ac.uk/id/eprint/82642

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