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Updated: Jun 1, 2026

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Characterizing Mammalian Zinc Transporters Using an In Vitro Zinc Transport Assay
Published on: June 2, 2023
Zinc transporter expression in zebrafish (Danio rerio) during development
Emily Ho1, Stephanie Dukovcic, Brad Hobson
1Department of Nutrition and Exercise Sciences, 103 Milam Hall, Oregon State University, Corvallis, OR 97331, USA. emily.ho@oregonstate.edu
Summary
Zebrafish embryos maintain consistent zinc levels, but exhibit varied expression of zinc transporters during development. This highlights zebrafish as a valuable model for studying maternal zinc deficiency impacts on embryonic development.
Area of Science:
- Developmental Biology
- Nutritional Science
- Zebrafish Models
Background:
- Maternal zinc deficiency impacts embryonic development, but in vivo models are lacking.
- Understanding zinc's role requires studying embryonic zinc regulation.
- Zebrafish offer a promising model for developmental zinc research.
Purpose of the Study:
- Profile mRNA expression of zinc transporter genes (SLC30A/ZnT and SLC39A/ZIP) in zebrafish embryos.
- Quantify embryonic zinc concentrations throughout development.
- Establish zebrafish as a model for studying maternal zinc deficiency.
Main Methods:
- Zebrafish embryos were analyzed at multiple developmental stages (0-120 hours post-fertilization).
- mRNA expression of SLC30A (ZnT) and SLC39A (ZIP) families was profiled.
- Embryonic zinc concentrations were quantified across developmental time points.
Main Results:
- Embryonic zinc concentrations remained consistent across developmental stages.
- Significant differential expression of several zinc transporter genes was observed.
- Zebrafish demonstrated stable zinc levels despite transporter expression changes.
Conclusions:
- Zebrafish serve as an effective model for investigating embryonic zinc regulation.
- The study identified differential zinc transporter expression during zebrafish development.
- Further research will explore molecular pathways affected by maternal zinc deficiency in zebrafish.

