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Corneal Endothelial Cell Fate Is Maintained by LGR5 Through the Regulation of Hedgehog and Wnt Pathway

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Drosophila EGFR pathway coordinates stem cell proliferation and gut remodeling following infection

Bruno Lemaitre, Nichole Broderick, Takayuki Kuraishi

ABSTRACT: BACKGROUND: Gut homeostasis is central to whole organism health, and its disruption is associated with a broad range of pathologies. Following damage, complex physiological events are required in the gut to maintain proper homeostasis. Previously ...

BioMed Central2010

Bcl9/Bcl9l are critical for Wnt-mediated regulation of stem cell traits in colon epithelium and adenocarcinomas

Michel Aguet, Mauro Delorenzi, Pascale Anderle Pedone, Norbert Wiedemann, Sylvie André Baflast

Canonical Wnt signaling plays a critical role in stem cell maintenance in epithelial homeostasis and carcinogenesis. Here, we show that in the mouse this role is critically mediated by Bcl9/Bcl9l, the mammalian homologues of Legless, which in Drosophila is ...

American Association for Cancer Research2010

Control of hair follicle cell fate by underlying mesenchyme through a CSL-Wnt5a-FoxN1 regulatory axis

Cathrin Brisken, Renuga Devi Rajaram

Epithelial-mesenchymal interactions are key to skin morphogenesis and homeostasis. We report that maintenance of the hair follicle keratinocyte cell fate is defective in mice with mesenchymal deletion of the CSL/RBP-Jkappa gene, the effector of "canonical" ...

Cold Spring Harbor Laboratory Press2010

Sutureless ocular surface reconstruction

Basile Salmon

Corneal diseases account for eight million blind people worldwide, making up to 10% of all causes of blindness. As 80% of the information is collected by our senses, blindness is a very invalidating condition which lowers greatly patients’ quality of life. ...

2010

Essential Role for Pbx1 in Corneal Morphogenesis

PURPOSE. The Pbx TALE (three-amino-acid loop extension) homeodomain proteins interact with class 1 Hox proteins, which are master regulators of cell fate decisions. This study was performed to elucidate the role of the Pbx1 TALE protein in the corneal epit ...

2010

The role of TIF1 gamma during adult murine hematopoiesis

Konstantin Shakhbazov

Transforming Growth Factor beta (TGFβ) signaling plays an important role in a variety of cellular processes during embryonic development, adult tissue homeostasis and cancer. TGFβI ligand is a potent inhibitor of early hematopoietic progenitor [1] cells in ...

EPFL2009

Modeling the cornea: an architectural approach

Julien Graber

Nowadays the mechanism regulating the corneal epithelium renewal still remains unclear. Until now it was thought to be the fact of stem cells distributed in the limbus, generating TA cells migrating towards the central cornea and responsible for its renewa ...

2009

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The Hedgehog (Hh) signaling pathway is a developmentally conserved regulator of stem cell function. Several reports suggested that Hh signaling is an important regulator of hematopoietic stem cell (HSC) maintenance and differentiation. Here we test this hy ...

2009

PURPOSE OF REVIEW: The last years of cancer research have established the concept of cancer stem cells (CSCs) as a subpopulation of cells within a tumor entirely responsible for tumorigenesis. This has aroused expectations that targeting cancer stem cells ...

2009

Tissue engineering of the bladder

Catharina Adelöw

Stem cell use in bladder tissue engineering is a recently addressed area of investigation that has generated excitement as a novel way to restore and regenerate lost or damaged urinary bladder tissue. The remodelling of smooth muscle plays a significant ro ...

EPFL2009