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Glossary Epithelium

type of tissue covering body surfaces and lining cavities

Epithelium is a type of tissue that forms the outer layer of the body's surfaces and lines internal organs and cavities. It acts as a protective barrier and is involved in functions such as absorption, secretion, and sensation. For example, the skin's outer layer and the lining of the digestive tract are made up of epithelial cells.

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Dedifferentiation of committed epithelial cells into stem cells in vivo Nature · 2013 · 551 citations
Epithelial Stem Cells: Turning over New Leaves Cell · 2007 · 508 citations
Keratin cytoskeletons in epithelial cells of internal organs Proceedings of the National Academy of Sciences · 1979 · 482 citations
Plasticity of epithelial stem cells in tissue regeneration Science · 2014 · 479 citations
Epithelial barrier function: assembly and structural features of the cornified cell envelope BioEssays · 2002 · 425 citations
Molecular Dissection of Mesenchymal–Epithelial Interactions in the Hair Follicle PLoS biology · 2005 · 417 citations
Keratin 15 Promoter Targets Putative Epithelial Stem Cells in the Hair Follicle Bulge Journal of Investigative Dermatology · 2003 · 387 citations
Defining the impact of β-catenin/Tcf transactivation on epithelial stem cells Genes & development · 2005 · 384 citations
Onset of Keratin 17 Expression Coincides with the Definition of Major Epithelial Lineages during Skin Development The Journal of Cell Biology · 1998 · 318 citations
Molecular Control of Epithelial–Mesenchymal Interactions During Hair Follicle Cycling 2003 · 277 citations

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Adipocyte lipolysis activates epithelial stem cells for hair regeneration through fatty acid metabolic signaling Reddit · 26 Oct 2025
Comprehensive Microneedling Guide Reddit · 19 Aug 2022

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