{"title":"Gfi1 in the inner ear: A retrospective review.","authors":"Zhuo Li, Hongzhi Chen, Hao Feng","doi":"10.1002/dvdy.70019","DOIUrl":null,"url":null,"abstract":"<p><p>Gfi1 plays an important role in the development of hair cells (HCs), as indicated by its ability to regulate the expression of HC-related genes while the organ of Corti is developing. Given that the HCs and the supporting cells (SCs) are coming from a common stem/progenitor cell pool, it is conceivable to regenerate HCs from SCs that ectopically express Gfi1. The focus of this review was to elucidate the role of Gfi1 in controlling the development of HCs by dissecting the phenotypes of the inner ear in Gfi1-mutated mouse lines. In addition, we reviewed studies of regeneration in the mammalian inner ear, by which we discussed the novel function of Gfi1 as an essential factor in guiding non-HCs toward an HC destiny in coordination with Atoh1 and Pou4f3. Finally, we summarized the known Gfi1-specific Cre/CreER/reporter mouse lines and highlighted the pros and cons of each line, with the aim of providing insights for use in future studies. In summary, a better understanding of Gfi1 and its diverse roles is beneficial for advancing studies of HC regeneration in the inner ear.</p>","PeriodicalId":11247,"journal":{"name":"Developmental Dynamics","volume":" ","pages":""},"PeriodicalIF":2.0000,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Developmental Dynamics","FirstCategoryId":"99","ListUrlMain":"https://doi.org/10.1002/dvdy.70019","RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ANATOMY & MORPHOLOGY","Score":null,"Total":0}
Gfi1 plays an important role in the development of hair cells (HCs), as indicated by its ability to regulate the expression of HC-related genes while the organ of Corti is developing. Given that the HCs and the supporting cells (SCs) are coming from a common stem/progenitor cell pool, it is conceivable to regenerate HCs from SCs that ectopically express Gfi1. The focus of this review was to elucidate the role of Gfi1 in controlling the development of HCs by dissecting the phenotypes of the inner ear in Gfi1-mutated mouse lines. In addition, we reviewed studies of regeneration in the mammalian inner ear, by which we discussed the novel function of Gfi1 as an essential factor in guiding non-HCs toward an HC destiny in coordination with Atoh1 and Pou4f3. Finally, we summarized the known Gfi1-specific Cre/CreER/reporter mouse lines and highlighted the pros and cons of each line, with the aim of providing insights for use in future studies. In summary, a better understanding of Gfi1 and its diverse roles is beneficial for advancing studies of HC regeneration in the inner ear.
期刊介绍：
Developmental Dynamics, is an official publication of the American Association for Anatomy. This peer reviewed journal provides an international forum for publishing novel discoveries, using any model system, that advances our understanding of development, morphology, form and function, evolution, disease, stem cells, repair and regeneration.
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