Sticky business: orchestrating cellular signals at adherens junctions.

PubWeight™: 4.91‹?› | Rank: Top 1%

🔗 View Article (PMID 12600316)

Published in Cell on February 21, 2003

Authors

Mirna Perez-Moreno1, Colin Jamora, Elaine Fuchs

Author Affiliations

1: Laboratory of Mammalian Cell Biology and Development, Howard Hughes Medical Institute, The Rockefeller University, New York, NY 10021, USA.

Articles citing this

(truncated to the top 100)

Adaptation of core mechanisms to generate cell polarity. Nature (2003) 5.64

Stem cell niches in the adult mouse heart. Proc Natl Acad Sci U S A (2006) 4.58

MicroRNA-155 is regulated by the transforming growth factor beta/Smad pathway and contributes to epithelial cell plasticity by targeting RhoA. Mol Cell Biol (2008) 4.45

Heart valve development: endothelial cell signaling and differentiation. Circ Res (2004) 4.41

Epidermal stem cells of the skin. Annu Rev Cell Dev Biol (2006) 3.92

Mammalian formin-1 participates in adherens junctions and polymerization of linear actin cables. Nat Cell Biol (2003) 3.77

Cadherins and cancer: how does cadherin dysfunction promote tumor progression? Oncogene (2008) 3.63

Cellular levels of p120 catenin function as a set point for cadherin expression levels in microvascular endothelial cells. J Cell Biol (2003) 3.39

Epithelial cell polarity, stem cells and cancer. Nat Rev Cancer (2011) 3.06

Aberrant expression of the transcription factors snail and slug alters the response to genotoxic stress. Mol Cell Biol (2004) 2.80

Alpha-catenin: at the junction of intercellular adhesion and actin dynamics. Nat Rev Mol Cell Biol (2004) 2.79

E-cadherin is essential for in vivo epidermal barrier function by regulating tight junctions. EMBO J (2005) 2.72

Catenins: keeping cells from getting their signals crossed. Dev Cell (2006) 2.70

Dynamics of adherens junctions in epithelial establishment, maintenance, and remodeling. J Cell Biol (2011) 2.67

p120-catenin mediates inflammatory responses in the skin. Cell (2006) 2.66

Intestinal barrier function: molecular regulation and disease pathogenesis. J Allergy Clin Immunol (2009) 2.63

E-cadherin mediates contact inhibition of proliferation through Hippo signaling-pathway components. Proc Natl Acad Sci U S A (2011) 2.61

NF2 deficiency promotes tumorigenesis and metastasis by destabilizing adherens junctions. Genes Dev (2003) 2.55

Rap1 regulates the formation of E-cadherin-based cell-cell contacts. Mol Cell Biol (2004) 2.31

Hepatocyte nuclear factor 4alpha orchestrates expression of cell adhesion proteins during the epithelial transformation of the developing liver. Proc Natl Acad Sci U S A (2006) 2.25

Depletion of E-cadherin disrupts establishment but not maintenance of cell junctions in Madin-Darby canine kidney epithelial cells. Mol Biol Cell (2006) 2.22

Lysosomal targeting of E-cadherin: a unique mechanism for the down-regulation of cell-cell adhesion during epithelial to mesenchymal transitions. Mol Cell Biol (2005) 2.19

Desmoplakin: an unexpected regulator of microtubule organization in the epidermis. J Cell Biol (2007) 2.16

Cdc42 controls progenitor cell differentiation and beta-catenin turnover in skin. Genes Dev (2006) 2.10

Myosin-10 and actin filaments are essential for mitotic spindle function. J Cell Biol (2008) 1.99

Conditional targeting of E-cadherin in skin: insights into hyperproliferative and degenerative responses. Proc Natl Acad Sci U S A (2004) 1.99

Deconstructing the skin: cytoarchitectural determinants of epidermal morphogenesis. Nat Rev Mol Cell Biol (2011) 1.94

Tracking retrograde flow in keratocytes: news from the front. Mol Biol Cell (2005) 1.88

The canonical Wnt signalling pathway and its APC partner in colon cancer development. Gut (2006) 1.86

Keeping in touch with contact inhibition of locomotion. Trends Cell Biol (2010) 1.85

E-cadherin homophilic ligation inhibits cell growth and epidermal growth factor receptor signaling independently of other cell interactions. Mol Biol Cell (2007) 1.84

Type I gamma phosphatidylinositol phosphate kinase modulates adherens junction and E-cadherin trafficking via a direct interaction with mu 1B adaptin. J Cell Biol (2007) 1.78

Cyfip1 is a putative invasion suppressor in epithelial cancers. Cell (2009) 1.77

Bench to bedside and back again: molecular mechanisms of alpha-catenin function and roles in tumorigenesis. Semin Cancer Biol (2007) 1.76

Biology and regulation of ectoplasmic specialization, an atypical adherens junction type, in the testis. Biochim Biophys Acta (2007) 1.74

Roles of STAT3 and ZEB1 proteins in E-cadherin down-regulation and human colorectal cancer epithelial-mesenchymal transition. J Biol Chem (2011) 1.70

A signaling pathway involving TGF-beta2 and snail in hair follicle morphogenesis. PLoS Biol (2004) 1.63

E-cadherin engagement stimulates proliferation via Rac1. J Cell Biol (2006) 1.61

Cdc42 deficiency causes Sonic hedgehog-independent holoprosencephaly. Proc Natl Acad Sci U S A (2006) 1.53

Co-operative roles for E-cadherin and N-cadherin during lens vesicle separation and lens epithelial cell survival. Dev Biol (2008) 1.53

Ectoplasmic specialization: a friend or a foe of spermatogenesis? Bioessays (2007) 1.52

The E-cadherin repressor Snail is associated with lower overall survival of ovarian cancer patients. Br J Cancer (2007) 1.45

Mechanosensitive EPLIN-dependent remodeling of adherens junctions regulates epithelial reshaping. J Cell Biol (2011) 1.45

E-cadherin controls adherens junctions in the epidermis and the renewal of hair follicles. EMBO J (2003) 1.44

Intestinal E-cadherin Deficiency Aggravates Dextran Sodium Sulfate-Induced Colitis. Dig Dis Sci (2015) 1.43

Developmental roles for Srf, cortical cytoskeleton and cell shape in epidermal spindle orientation. Nat Cell Biol (2011) 1.37

Planar spindle orientation and asymmetric cytokinesis in the mouse small intestine. J Histochem Cytochem (2007) 1.37

Computational modeling of cellular signaling processes embedded into dynamic spatial contexts. Nat Methods (2012) 1.37

E/N-cadherin switch mediates cancer progression via TGF-β-induced epithelial-to-mesenchymal transition in extrahepatic cholangiocarcinoma. Br J Cancer (2011) 1.34

Organization of multiprotein complexes at cell-cell junctions. Histochem Cell Biol (2008) 1.33

Expression and nuclear localization of Snail, an E-cadherin repressor, in adenocarcinomas of the upper gastrointestinal tract. Virchows Arch (2005) 1.33

E-cadherin's dark side: possible role in tumor progression. Biochim Biophys Acta (2012) 1.32

A role for the cleaved cytoplasmic domain of E-cadherin in the nucleus. J Biol Chem (2008) 1.32

Furin-, ADAM 10-, and gamma-secretase-mediated cleavage of a receptor tyrosine phosphatase and regulation of beta-catenin's transcriptional activity. Mol Cell Biol (2006) 1.32

Microtubules regulate disassembly of epithelial apical junctions. BMC Cell Biol (2006) 1.31

Casein kinase 1 is a novel negative regulator of E-cadherin-based cell-cell contacts. Mol Cell Biol (2007) 1.30

Molecular analysis of receptor protein tyrosine phosphatase mu-mediated cell adhesion. EMBO J (2006) 1.28

Molecular mechanisms and treatment of radiation-induced lung fibrosis. Curr Drug Targets (2013) 1.27

Epithelial to mesenchymal transition of a primary prostate cell line with switches of cell adhesion modules but without malignant transformation. PLoS One (2008) 1.27

Cadherin-11 induces rheumatoid arthritis fibroblast-like synoviocytes to form lining layers in vitro. Am J Pathol (2006) 1.24

Independent cadherin-catenin and Bazooka clusters interact to assemble adherens junctions. J Cell Biol (2009) 1.23

Cadherin-mediated intercellular adhesion and signaling cascades involving small GTPases. Cold Spring Harb Perspect Biol (2009) 1.17

Mammary-specific inactivation of E-cadherin and p53 impairs functional gland development and leads to pleomorphic invasive lobular carcinoma in mice. Dis Model Mech (2011) 1.16

Assessing the role of the cadherin/catenin complex at the Schwann cell-axon interface and in the initiation of myelination. J Neurosci (2011) 1.15

Eph/ephrin signaling in epithelial development and homeostasis. Int J Biochem Cell Biol (2008) 1.14

Overexpression of DPAGT1 leads to aberrant N-glycosylation of E-cadherin and cellular discohesion in oral cancer. Cancer Res (2009) 1.13

Cytosolic p120-catenin regulates growth of metastatic lobular carcinoma through Rock1-mediated anoikis resistance. J Clin Invest (2011) 1.13

Characterization and comparison of intercellular adherent junctions expressed by human corneal endothelial cells in vivo and in vitro. Invest Ophthalmol Vis Sci (2008) 1.12

Maintaining epithelial integrity: a function for gigantic spectraplakin isoforms in adherens junctions. J Cell Biol (2003) 1.11

VASP involvement in force-mediated adherens junction strengthening. Biochem Biophys Res Commun (2008) 1.09

Junctional music that the nucleus hears: cell-cell contact signaling and the modulation of gene activity. Cold Spring Harb Perspect Biol (2009) 1.09

Hyperoxic treatment induces mesenchymal-to-epithelial transition in a rat adenocarcinoma model. PLoS One (2009) 1.09

Mutated beta-catenin evades a microRNA-dependent regulatory loop. Proc Natl Acad Sci U S A (2011) 1.08

Dissociation of E-cadherin and beta-catenin in a mouse model of total parenteral nutrition: a mechanism for the loss of epithelial cell proliferation and villus atrophy. J Physiol (2008) 1.08

A genetic screen for dominant modifiers of a cyclin E hypomorphic mutation identifies novel regulators of S-phase entry in Drosophila. Genetics (2004) 1.07

The TRPV4 channel contributes to intercellular junction formation in keratinocytes. J Biol Chem (2010) 1.07

Adducins regulate remodeling of apical junctions in human epithelial cells. Mol Biol Cell (2010) 1.07

Paracingulin regulates the activity of Rac1 and RhoA GTPases by recruiting Tiam1 and GEF-H1 to epithelial junctions. Mol Biol Cell (2008) 1.06

Mutations in PVRL4, encoding cell adhesion molecule nectin-4, cause ectodermal dysplasia-syndactyly syndrome. Am J Hum Genet (2010) 1.06

Cadherin-catenin complex and transcription factor Snail-1 in spindle cell carcinoma of the head and neck. Virchows Arch (2008) 1.06

Benzyl isothiocyanate inhibits epithelial-mesenchymal transition in cultured and xenografted human breast cancer cells. Cancer Prev Res (Phila) (2011) 1.06

E-cadherin dis-engagement activates the Rap1 GTPase. J Cell Biochem (2008) 1.05

E-cadherin is required for intestinal morphogenesis in the mouse. Dev Biol (2012) 1.04

Zyxin mediates actin fiber reorganization in epithelial-mesenchymal transition and contributes to endocardial morphogenesis. Mol Biol Cell (2009) 1.04

Antigen recognition is facilitated by invadosome-like protrusions formed by memory/effector T cells. J Immunol (2012) 1.04

Caveolae mediate growth factor-induced disassembly of adherens junctions to support tumor cell dissociation. Mol Biol Cell (2009) 1.04

Phosphorylation of N-cadherin-associated cortactin by Fer kinase regulates N-cadherin mobility and intercellular adhesion strength. Mol Biol Cell (2005) 1.04

Interactions of plakoglobin and beta-catenin with desmosomal cadherins: basis of selective exclusion of alpha- and beta-catenin from desmosomes. J Biol Chem (2009) 1.03

A role for ZO-1 and PLEKHA7 in recruiting paracingulin to tight and adherens junctions of epithelial cells. J Biol Chem (2011) 1.03

Nuclear p120 catenin unlocks mitotic block of contact-inhibited human corneal endothelial monolayers without disrupting adherent junctions. J Cell Sci (2012) 1.03

Epithelial-mesenchymal Transition and Cell Invasion. Toxicol Res (2010) 1.03

Calcium regulation of keratinocyte differentiation. Expert Rev Endocrinol Metab (2012) 1.03

Homophilic and heterophilic polycystin 1 interactions regulate E-cadherin recruitment and junction assembly in MDCK cells. J Cell Sci (2009) 1.02

Retinal degeneration triggered by inactivation of PTEN in the retinal pigment epithelium. Genes Dev (2008) 1.02

Tara up-regulates E-cadherin transcription by binding to the Trio RhoGEF and inhibiting Rac signaling. J Cell Biol (2011) 1.02

Vezatin, an integral membrane protein of adherens junctions, is required for the sound resilience of cochlear hair cells. EMBO Mol Med (2009) 1.01

Novel roles of hakai in cell proliferation and oncogenesis. Mol Biol Cell (2009) 1.01

Necl2 regulates epidermal adhesion and wound repair. Development (2009) 1.01

RhoA-ROCK and p38MAPK-MSK1 mediate vitamin D effects on gene expression, phenotype, and Wnt pathway in colon cancer cells. J Cell Biol (2008) 1.01

Normal establishment of epithelial tight junctions in mice and cultured cells lacking expression of ZO-3, a tight-junction MAGUK protein. Mol Cell Biol (2006) 1.01

Articles by these authors

Defining the epithelial stem cell niche in skin. Science (2003) 14.93

Self-renewal, multipotency, and the existence of two cell populations within an epithelial stem cell niche. Cell (2004) 10.79

Epidermal homeostasis: a balancing act of stem cells in the skin. Nat Rev Mol Cell Biol (2009) 7.95

Asymmetric cell divisions promote stratification and differentiation of mammalian skin. Nature (2005) 6.67

Morphogenesis in skin is governed by discrete sets of differentially expressed microRNAs. Nat Genet (2006) 6.30

A skin microRNA promotes differentiation by repressing 'stemness'. Nature (2008) 5.66

Ezh2 orchestrates gene expression for the stepwise differentiation of tissue-specific stem cells. Cell (2009) 5.51

A two-step mechanism for stem cell activation during hair regeneration. Cell Stem Cell (2009) 5.40

Hair follicle stem cells are specified and function in early skin morphogenesis. Cell Stem Cell (2008) 5.02

Links between signal transduction, transcription and adhesion in epithelial bud development. Nature (2003) 4.88

Intercellular adhesion, signalling and the cytoskeleton. Nat Cell Biol (2002) 4.29

Molecular dissection of mesenchymal-epithelial interactions in the hair follicle. PLoS Biol (2005) 4.27

Dynamics between stem cells, niche, and progeny in the hair follicle. Cell (2011) 4.14

Epithelial stem cells: turning over new leaves. Cell (2007) 4.10

Actin cable dynamics and Rho/Rock orchestrate a polarized cytoskeletal architecture in the early steps of assembling a stratified epithelium. Dev Cell (2002) 4.01

Epidermal stem cells of the skin. Annu Rev Cell Dev Biol (2006) 3.92

DICER1 deficit induces Alu RNA toxicity in age-related macular degeneration. Nature (2011) 3.90

Tcf3 governs stem cell features and represses cell fate determination in skin. Cell (2006) 3.88

NFATc1 balances quiescence and proliferation of skin stem cells. Cell (2008) 3.81

Blimp1 defines a progenitor population that governs cellular input to the sebaceous gland. Cell (2006) 3.79

Mammalian formin-1 participates in adherens junctions and polymerization of linear actin cables. Nat Cell Biol (2003) 3.77

Basal cells are a multipotent progenitor capable of renewing the bronchial epithelium. Am J Pathol (2004) 3.70

Defining the impact of beta-catenin/Tcf transactivation on epithelial stem cells. Genes Dev (2005) 3.67

Asymmetric cell divisions promote Notch-dependent epidermal differentiation. Nature (2011) 3.64

Interferon-γ links ultraviolet radiation to melanomagenesis in mice. Nature (2011) 3.56

Loss of TGFbeta signaling destabilizes homeostasis and promotes squamous cell carcinomas in stratified epithelia. Cancer Cell (2007) 3.55

Canonical notch signaling functions as a commitment switch in the epidermal lineage. Genes Dev (2006) 3.51

A role for skin gammadelta T cells in wound repair. Science (2002) 3.51

Loss of a quiescent niche but not follicle stem cells in the absence of bone morphogenetic protein signaling. Proc Natl Acad Sci U S A (2007) 3.16

In vivo differentiation potential of tracheal basal cells: evidence for multipotent and unipotent subpopulations. Am J Physiol Lung Cell Mol Physiol (2003) 3.08

Planar polarization in embryonic epidermis orchestrates global asymmetric morphogenesis of hair follicles. Nat Cell Biol (2008) 3.07

GATA-3: an unexpected regulator of cell lineage determination in skin. Genes Dev (2003) 2.97

ACF7 regulates cytoskeletal-focal adhesion dynamics and migration and has ATPase activity. Cell (2008) 2.94

Stem cells in the skin: waste not, Wnt not. Genes Dev (2003) 2.80

Genome-wide maps of histone modifications unwind in vivo chromatin states of the hair follicle lineage. Cell Stem Cell (2011) 2.80

Focal adhesion kinase modulates tension signaling to control actin and focal adhesion dynamics. J Cell Biol (2007) 2.79

Alpha-catenin: at the junction of intercellular adhesion and actin dynamics. Nat Rev Mol Cell Biol (2004) 2.79

Lhx2 maintains stem cell character in hair follicles. Science (2006) 2.78

Loss of kindlin-1, a human homolog of the Caenorhabditis elegans actin-extracellular-matrix linker protein UNC-112, causes Kindler syndrome. Am J Hum Genet (2003) 2.73

Catenins: keeping cells from getting their signals crossed. Dev Cell (2006) 2.70

Protection of the intestinal mucosa by intraepithelial gamma delta T cells. Proc Natl Acad Sci U S A (2002) 2.69

p120-catenin mediates inflammatory responses in the skin. Cell (2006) 2.66

ACF7: an essential integrator of microtubule dynamics. Cell (2003) 2.66

DNA methylation dynamics during in vivo differentiation of blood and skin stem cells. Mol Cell (2012) 2.66

Defining BMP functions in the hair follicle by conditional ablation of BMP receptor IA. J Cell Biol (2003) 2.65

EZH1 and EZH2 cogovern histone H3K27 trimethylation and are essential for hair follicle homeostasis and wound repair. Genes Dev (2011) 2.63

The hair cycle. J Cell Sci (2006) 2.58

Epidermal sensing of oxygen is essential for systemic hypoxic response. Cell (2008) 2.54

DGCR8-dependent microRNA biogenesis is essential for skin development. Proc Natl Acad Sci U S A (2008) 2.49

RNAi screens in mice identify physiological regulators of oncogenic growth. Nature (2013) 2.46

BMP signaling in dermal papilla cells is required for their hair follicle-inductive properties. Genes Dev (2008) 2.41

Skin stem cells orchestrate directional migration by regulating microtubule-ACF7 connections through GSK3β. Cell (2011) 2.36

Identification of stem cell populations in sweat glands and ducts reveals roles in homeostasis and wound repair. Cell (2012) 2.35

Tcf3: a transcriptional regulator of axis induction in the early embryo. Development (2003) 2.26

Stem cells of the skin epithelium. Proc Natl Acad Sci U S A (2003) 2.20

Epithelial decision makers: in search of the 'epimmunome'. Nat Immunol (2010) 2.19

Desmoplakin: an unexpected regulator of microtubule organization in the epidermis. J Cell Biol (2007) 2.16

Differential regulation of midbrain dopaminergic neuron development by Wnt-1, Wnt-3a, and Wnt-5a. Proc Natl Acad Sci U S A (2003) 2.14

Tumor-initiating stem cells of squamous cell carcinomas and their control by TGF-β and integrin/focal adhesion kinase (FAK) signaling. Proc Natl Acad Sci U S A (2011) 2.13

Yes-associated protein (YAP) transcriptional coactivator functions in balancing growth and differentiation in skin. Proc Natl Acad Sci U S A (2011) 2.08

Tcf3 and Tcf4 are essential for long-term homeostasis of skin epithelia. Nat Genet (2009) 2.07

Epidermolysis bullosa simplex: a paradigm for disorders of tissue fragility. J Clin Invest (2009) 2.06

Rapid functional dissection of genetic networks via tissue-specific transduction and RNAi in mouse embryos. Nat Med (2010) 2.01

Paracrine TGF-β signaling counterbalances BMP-mediated repression in hair follicle stem cell activation. Cell Stem Cell (2012) 1.99

Conditional targeting of E-cadherin in skin: insights into hyperproliferative and degenerative responses. Proc Natl Acad Sci U S A (2004) 1.99

A family business: stem cell progeny join the niche to regulate homeostasis. Nat Rev Mol Cell Biol (2012) 1.91

A role for the primary cilium in Notch signaling and epidermal differentiation during skin development. Cell (2011) 1.83

Links between alpha-catenin, NF-kappaB, and squamous cell carcinoma in skin. Proc Natl Acad Sci U S A (2006) 1.77

Cyfip1 is a putative invasion suppressor in epithelial cancers. Cell (2009) 1.77

Dynamic expression of epidermal caspase 8 simulates a wound healing response. Nature (2009) 1.71

Planar cell polarity protein Celsr1 regulates endothelial adherens junctions and directed cell rearrangements during valve morphogenesis. Dev Cell (2013) 1.70

A signaling pathway involving TGF-beta2 and snail in hair follicle morphogenesis. PLoS Biol (2004) 1.63

Isolation and culture of epithelial stem cells. Methods Mol Biol (2009) 1.63

Hedgehog signaling regulates the generation of ameloblast progenitors in the continuously growing mouse incisor. Development (2010) 1.55

Direct in vivo RNAi screen unveils myosin IIa as a tumor suppressor of squamous cell carcinomas. Science (2014) 1.53

Targeted disruption of the murine zyxin gene. Mol Cell Biol (2003) 1.51

The harmonies played by TGF-β in stem cell biology. Cell Stem Cell (2012) 1.47

Structure and transcription of the human m3 muscarinic receptor gene. Am J Respir Cell Mol Biol (2002) 1.47

Beta 1-integrins are required for hippocampal AMPA receptor-dependent synaptic transmission, synaptic plasticity, and working memory. J Neurosci (2006) 1.42

Loss of p120 catenin and links to mitotic alterations, inflammation, and skin cancer. Proc Natl Acad Sci U S A (2008) 1.40

AP-2alpha: a regulator of EGF receptor signaling and proliferation in skin epidermis. J Cell Biol (2006) 1.38

Developmental roles for Srf, cortical cytoskeleton and cell shape in epidermal spindle orientation. Nat Cell Biol (2011) 1.37

New insights into cadherin function in epidermal sheet formation and maintenance of tissue integrity. Proc Natl Acad Sci U S A (2008) 1.37

A role for alphabeta1 integrins in focal adhesion function and polarized cytoskeletal dynamics. Dev Cell (2003) 1.35

SOX9: a stem cell transcriptional regulator of secreted niche signaling factors. Genes Dev (2014) 1.34

Protein tyrosine kinase 6 negatively regulates growth and promotes enterocyte differentiation in the small intestine. Mol Cell Biol (2006) 1.33

Specific microRNAs are preferentially expressed by skin stem cells to balance self-renewal and early lineage commitment. Cell Stem Cell (2011) 1.33

AP-2 factors act in concert with Notch to orchestrate terminal differentiation in skin epidermis. J Cell Biol (2008) 1.33

What does the concept of the stem cell niche really mean today? BMC Biol (2012) 1.32

p63: revving up epithelial stem-cell potential. Nat Cell Biol (2007) 1.32

An RNA interference screen uncovers a new molecule in stem cell self-renewal and long-term regeneration. Nature (2012) 1.32

NFIB is a governor of epithelial-melanocyte stem cell behaviour in a shared niche. Nature (2013) 1.29

Mitotic internalization of planar cell polarity proteins preserves tissue polarity. Nat Cell Biol (2011) 1.28

The LEF1/beta -catenin complex activates movo1, a mouse homolog of Drosophila ovo required for epidermal appendage differentiation. Proc Natl Acad Sci U S A (2002) 1.27

UVB radiation generates sunburn pain and affects skin by activating epidermal TRPV4 ion channels and triggering endothelin-1 signaling. Proc Natl Acad Sci U S A (2013) 1.26

Mice cloned from skin cells. Proc Natl Acad Sci U S A (2007) 1.23

Coordinating cytoskeletal tracks to polarize cellular movements. J Cell Biol (2004) 1.20

Sgk3 links growth factor signaling to maintenance of progenitor cells in the hair follicle. J Cell Biol (2005) 1.20