User profiles for D. Castillo-Azofeifa
David Castillo-AzofeifaSenior Scientist at Genentech Verified email at gene.com Cited by 728 |
[HTML][HTML] Lgr5+ telocytes are a signaling source at the intestinal villus tip
The intestinal epithelium is a structured organ composed of crypts harboring Lgr5+ stem
cells, and villi harboring differentiated cells. Spatial transcriptomics have demonstrated …
cells, and villi harboring differentiated cells. Spatial transcriptomics have demonstrated …
Cellular aspect ratio and cell division mechanics underlie the patterning of cell progeny in diverse mammalian epithelia
10.7554/eLife.36739.001 Cell division is essential to expand, shape, and replenish epithelia.
In the adult small intestine, cells from a common progenitor intermix with other lineages, …
In the adult small intestine, cells from a common progenitor intermix with other lineages, …
A large pool of actively cycling progenitors orchestrates self-renewal and injury repair of an ectodermal appendage
The classical model of tissue renewal posits that small numbers of quiescent stem cells (SCs)
give rise to proliferating transit-amplifying cells before terminal differentiation. However, …
give rise to proliferating transit-amplifying cells before terminal differentiation. However, …
Cellular shape reinforces niche to stem cell signaling in the small intestine
…, S Andersson, JI Englund, D Castillo-Azofeifa… - Science …, 2022 - science.org
Niche-derived factors regulate tissue stem cells, but apart from the mechanosensory
pathways, the effect of niche geometry is not well understood. We used organoids and …
pathways, the effect of niche geometry is not well understood. We used organoids and …
Atoh1+ secretory progenitors possess renewal capacity independent of Lgr5+ cells during colonic regeneration
D Castillo‐Azofeifa, EN Fazio, R Nattiv, HJ Good… - The EMBO …, 2019 - embopress.org
During homeostasis, the colonic epithelium is replenished every 3–5 days by rapidly cycling
Lgr5 + stem cells. However, various insults can lead to depletion of Lgr5 + stem cells, and …
Lgr5 + stem cells. However, various insults can lead to depletion of Lgr5 + stem cells, and …
Sonic hedgehog from both nerves and epithelium is a key trophic factor for taste bud maintenance
D Castillo-Azofeifa, JT Losacco, E Salcedo… - …, 2017 - journals.biologists.com
The integrity of taste buds is intimately dependent on an intact gustatory innervation, yet the
molecular nature of this dependency is unknown. Here, we show that differentiation of new …
molecular nature of this dependency is unknown. Here, we show that differentiation of new …
[PDF][PDF] Epithelial WNT ligands are essential drivers of intestinal stem cell activation
Intestinal stem cells (ISCs) maintain and repair the intestinal epithelium. While regeneration
after ISC-targeted damage is increasingly understood, injury-repair mechanisms that direct …
after ISC-targeted damage is increasingly understood, injury-repair mechanisms that direct …
[PDF][PDF] Tools and concepts for interrogating and defining cellular identity
Defining the mechanisms that generate specialized cell types and coordinate their functions
is critical for understanding organ development and renewal. New tools and discoveries are …
is critical for understanding organ development and renewal. New tools and discoveries are …
[HTML][HTML] Epithelial TNF controls cell differentiation and CFTR activity to maintain intestinal mucin homeostasis
EA Reyes, D Castillo-Azofeifa, J Rispal… - The Journal of …, 2023 - Am Soc Clin Investig
The gastrointestinal tract relies on the production, maturation, and transit of mucin to protect
against pathogens and to lubricate the epithelial lining. Although the molecular and cellular …
against pathogens and to lubricate the epithelial lining. Although the molecular and cellular …
SOX2 regulation by hedgehog signaling controls adult lingual epithelium homeostasis
D Castillo-Azofeifa, K Seidel, L Gross… - …, 2018 - journals.biologists.com
Adult tongue epithelium is continuously renewed from epithelial progenitor cells, a process
that requires hedgehog (HH) signaling. In mice, pharmacological inhibition of the HH …
that requires hedgehog (HH) signaling. In mice, pharmacological inhibition of the HH …