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Defining the Epithelial Stem Cell Niche in Skin
Many adult regenerative cells divide infrequently but have high proliferative capacity. We developed a strategy to fluorescently label slow-cycling cells in a cell type–specific fashion. We used this… Expand
Directed Actin Polymerization Is the Driving Force for Epithelial Cell–Cell Adhesion
We have found that epithelial cells engage in a process of cadherin-mediated intercellular adhesion that utilizes calcium and actin polymerization in unexpected ways. Calcium stimulates filopodia,… Expand
Neurogenesis in the Dentate Gyrus of the Adult Tree Shrew Is Regulated by Psychosocial Stress and NMDA Receptor Activation
- E. Gould, B. McEwen, P. Tanapat, L. A. Galea, E. Fuchs
- Biology, Medicine
- The Journal of Neuroscience
- 1 April 1997
These studies were designed to determine whether adult neurogenesis occurs in the dentate gyrus of the tree shrew, an animal phylogenetically between insectivores and primates, and to explore the… Expand
A two-step mechanism for stem cell activation during hair regeneration.
Hair follicles (HFs) undergo cyclic bouts of degeneration, rest, and regeneration. During rest (telogen), the hair germ (HG) appears as a small cell cluster between the slow-cycling bulge and dermal… Expand
Intermediate filaments: structure, dynamics, function, and disease.
Self-Renewal, Multipotency, and the Existence of Two Cell Populations within an Epithelial Stem Cell Niche
In adult skin, each hair follicle contains a reservoir of stem cells (the bulge), which can be mobilized to regenerate the new follicle with each hair cycle and to reepithelialize epidermis during… Expand
Programming gene expression in developing epidermis.
As the major proteins of adult keratinocytes, keratins provide biochemical markers for exploring mouse epidermal embryogenesis. Here, we used a modified method of whole-mount in situ hybridization to… Expand
Socializing with the Neighbors Stem Cells and Their Niche
The potential of stem cells in regenerative medicine relies upon removing them from their natural habitat, propagating them in culture, and placing them into a foreign tissue environment. To do so,… Expand
De Novo Hair Follicle Morphogenesis and Hair Tumors in Mice Expressing a Truncated β-Catenin in Skin
An effector of intercellular adhesion, beta-catenin also functions in Wnt signaling, associating with Lef-1/Tcf DNA-binding proteins to form a transcription factor. We report that this pathway… Expand
Asymmetric cell divisions promote stratification and differentiation of mammalian skin
The epidermis is a stratified squamous epithelium forming the barrier that excludes harmful microbes and retains body fluids. To perform these functions, proliferative basal cells in the innermost… Expand