{"title":"上皮干细胞在稳态和修复过程中的自我更新和分化的细胞机制","authors":"Diya Das, Russell B. Fletcher, J. Ngai","doi":"10.1002/wdev.361","DOIUrl":null,"url":null,"abstract":"Epithelia in adult mammals exhibit remarkable regenerative capacities owing to the presence of adult stem cells, which self‐renew and differentiate to replace cells lost to normal turnover or injury. The mechanisms supporting tissue homeostasis and injury‐induced repair often differ from each other as well as from those used in embryonic development. Recent studies have also highlighted the phenomenon of cellular plasticity in adult tissues, in which differentiated cells can change fate and even give rise to new stem cell populations to complement the canonical stem cells in promoting repair following injury. Signaling pathways such as WNT, bone morphogenetic protein, and Sonic Hedgehog play critical roles in stem cell maintenance and cell fate decisions across diverse epithelia and conditions, suggesting that conserved mechanisms underlie the regenerative capacity of adult epithelial structures.","PeriodicalId":23630,"journal":{"name":"Wiley Interdisciplinary Reviews: Developmental Biology","volume":"56 3","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1002/wdev.361","citationCount":"18","resultStr":"{\"title\":\"Cellular mechanisms of epithelial stem cell self‐renewal and differentiation during homeostasis and repair\",\"authors\":\"Diya Das, Russell B. Fletcher, J. Ngai\",\"doi\":\"10.1002/wdev.361\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Epithelia in adult mammals exhibit remarkable regenerative capacities owing to the presence of adult stem cells, which self‐renew and differentiate to replace cells lost to normal turnover or injury. The mechanisms supporting tissue homeostasis and injury‐induced repair often differ from each other as well as from those used in embryonic development. Recent studies have also highlighted the phenomenon of cellular plasticity in adult tissues, in which differentiated cells can change fate and even give rise to new stem cell populations to complement the canonical stem cells in promoting repair following injury. Signaling pathways such as WNT, bone morphogenetic protein, and Sonic Hedgehog play critical roles in stem cell maintenance and cell fate decisions across diverse epithelia and conditions, suggesting that conserved mechanisms underlie the regenerative capacity of adult epithelial structures.\",\"PeriodicalId\":23630,\"journal\":{\"name\":\"Wiley Interdisciplinary Reviews: Developmental Biology\",\"volume\":\"56 3\",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2019-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1002/wdev.361\",\"citationCount\":\"18\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Wiley Interdisciplinary Reviews: Developmental Biology\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1002/wdev.361\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"Biochemistry, Genetics and Molecular Biology\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Wiley Interdisciplinary Reviews: Developmental Biology","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1002/wdev.361","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"Biochemistry, Genetics and Molecular Biology","Score":null,"Total":0}
Cellular mechanisms of epithelial stem cell self‐renewal and differentiation during homeostasis and repair
Epithelia in adult mammals exhibit remarkable regenerative capacities owing to the presence of adult stem cells, which self‐renew and differentiate to replace cells lost to normal turnover or injury. The mechanisms supporting tissue homeostasis and injury‐induced repair often differ from each other as well as from those used in embryonic development. Recent studies have also highlighted the phenomenon of cellular plasticity in adult tissues, in which differentiated cells can change fate and even give rise to new stem cell populations to complement the canonical stem cells in promoting repair following injury. Signaling pathways such as WNT, bone morphogenetic protein, and Sonic Hedgehog play critical roles in stem cell maintenance and cell fate decisions across diverse epithelia and conditions, suggesting that conserved mechanisms underlie the regenerative capacity of adult epithelial structures.
期刊介绍：
Developmental biology is concerned with the fundamental question of how a single cell, the fertilized egg, ultimately produces a complex, fully patterned adult organism. This problem is studied on many different biological levels, from the molecular to the organismal. Developed in association with the Society for Developmental Biology, WIREs Developmental Biology will provide a unique interdisciplinary forum dedicated to fostering excellence in research and education and communicating key advances in this important field. The collaborative and integrative ethos of the WIREs model will facilitate connections to related disciplines such as genetics, systems biology, bioengineering, and psychology.
The topical coverage of WIREs Developmental Biology includes: Establishment of Spatial and Temporal Patterns; Gene Expression and Transcriptional Hierarchies; Signaling Pathways; Early Embryonic Development; Invertebrate Organogenesis; Vertebrate Organogenesis; Nervous System Development; Birth Defects; Adult Stem Cells, Tissue Renewal and Regeneration; Cell Types and Issues Specific to Plants; Comparative Development and Evolution; and Technologies.
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