{"title":"Zinc transporter ZnT3/Slc30a3 has a potential role in zinc ion influx in mouse oocytes","authors":"Atsuko KAGEYAMA, Jumpei TERAKAWA, Shunsuke TAKARABE, Hibiki SUGITA, Yui KAWATA, Junya ITO, Naomi KASHIWAZAKI","doi":"10.1262/jrd.2024-044","DOIUrl":null,"url":null,"abstract":"</p><p>Zinc is an essential trace element for various physiological functions, including reproduction. The influx/efflux of zinc ions is regulated by zinc transporters (Zip1–14 and ZnT1–8, 10). However, the precise roles of zinc transporters and zinc dynamics in reproductive functions are unknown. In this study, <i>ZnT3</i>/<i>Slc30a3</i> gene knockout (KO) mice were used to analyze the role of <i>ZnT3</i>. In <i>ZnT3</i> KO mice, intracellular zinc ions in oocytes/zygotes were significantly reduced compared to those in controls, and free zinc ions did not accumulate in the oocyte cytoplasm. However, fertilization of these oocytes and the average litter size were comparable to those of control mice. Our results suggest that ZnT3 plays an important role in the accumulation of zinc ions in oocytes but not in the developmental ability of mice. <i>ZnT3</i> KO mice will be useful for examining zinc dynamics in oocytes and other tissues.</p>\n<p></p>\n<img alt=\"\" src=\"https://www.jstage.jst.go.jp/pub/jrd/advpub/0/advpub_2024-044/figure/advpub_2024-044.jpg\"/>\nGraphical Abstract <span style=\"padding-left:5px;\">Fullsize Image</span>","PeriodicalId":16942,"journal":{"name":"Journal of Reproduction and Development","volume":"13 1","pages":""},"PeriodicalIF":1.9000,"publicationDate":"2024-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Reproduction and Development","FirstCategoryId":"99","ListUrlMain":"https://doi.org/10.1262/jrd.2024-044","RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"AGRICULTURE, DAIRY & ANIMAL SCIENCE","Score":null,"Total":0}
引用次数: 0
Abstract
Zinc is an essential trace element for various physiological functions, including reproduction. The influx/efflux of zinc ions is regulated by zinc transporters (Zip1–14 and ZnT1–8, 10). However, the precise roles of zinc transporters and zinc dynamics in reproductive functions are unknown. In this study, ZnT3/Slc30a3 gene knockout (KO) mice were used to analyze the role of ZnT3. In ZnT3 KO mice, intracellular zinc ions in oocytes/zygotes were significantly reduced compared to those in controls, and free zinc ions did not accumulate in the oocyte cytoplasm. However, fertilization of these oocytes and the average litter size were comparable to those of control mice. Our results suggest that ZnT3 plays an important role in the accumulation of zinc ions in oocytes but not in the developmental ability of mice. ZnT3 KO mice will be useful for examining zinc dynamics in oocytes and other tissues.
期刊介绍：
Journal of Reproduction and Development (JRD) is the
official journal of the Society for Reproduction and Development,
published bimonthly, and welcomes original articles. JRD
provides free full-text access of all the published articles on
the web. The functions of the journal are managed by Editorial
Board Members, such as the Editor-in-Chief, Co-Editor-inChief, Managing Editors and Editors. All manuscripts are
peer-reviewed critically by two or more reviewers. Acceptance
is based on scientific content and presentation of the materials.
The Editors select reviewers and correspond with authors. Final
decisions about acceptance or rejection of manuscripts are made
by the Editor-in-Chief and Co-Editor-in-Chief.
Graphical Abstract Fullsize Image
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