TY - JOUR
T1 - Enteroendocrine and tuft cells support Lgr5 stem cells on Paneth cell depletion
AU - van Es, Johan H
AU - Wiebrands, Kay
AU - López-Iglesias, Carmen
AU - van de Wetering, Marc
AU - Zeinstra, Laura
AU - van den Born, Maaike
AU - Korving, Jeroen
AU - Sasaki, Nobuo
AU - Peters, Peter J
AU - van Oudenaarden, Alexander
AU - Clevers, Hans
PY - 2019/12/16
Y1 - 2019/12/16
N2 - Cycling intestinal Lgr5+ stem cells are intermingled with their terminally differentiated Paneth cell daughters at crypt bottoms. Paneth cells provide multiple secreted (e.g., Wnt, EGF) as well as surface-bound (Notch ligand) niche signals. Here we show that ablation of Paneth cells in mice, using a diphtheria toxin receptor gene inserted into the P-lysozyme locus, does not affect the maintenance of Lgr5+ stem cells. Flow cytometry, single-cell sequencing, and histological analysis showed that the ablated Paneth cells are replaced by enteroendocrine and tuft cells. As these cells physically occupy Paneth cell positions between Lgr5 stem cells, they serve as an alternative source of Notch signals, which are essential for Lgr5+ stem cell maintenance. Our combined in vivo results underscore the adaptive flexibility of the intestine in maintaining normal tissue homeostasis.
AB - Cycling intestinal Lgr5+ stem cells are intermingled with their terminally differentiated Paneth cell daughters at crypt bottoms. Paneth cells provide multiple secreted (e.g., Wnt, EGF) as well as surface-bound (Notch ligand) niche signals. Here we show that ablation of Paneth cells in mice, using a diphtheria toxin receptor gene inserted into the P-lysozyme locus, does not affect the maintenance of Lgr5+ stem cells. Flow cytometry, single-cell sequencing, and histological analysis showed that the ablated Paneth cells are replaced by enteroendocrine and tuft cells. As these cells physically occupy Paneth cell positions between Lgr5 stem cells, they serve as an alternative source of Notch signals, which are essential for Lgr5+ stem cell maintenance. Our combined in vivo results underscore the adaptive flexibility of the intestine in maintaining normal tissue homeostasis.
U2 - 10.1073/pnas.1801888117
DO - 10.1073/pnas.1801888117
M3 - Article
C2 - 31843916
SN - 0027-8424
JO - Proceedings of the National Academy of Sciences of the United States of America
JF - Proceedings of the National Academy of Sciences of the United States of America
ER -