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Updated: Aug 6, 2026

An Ex vivo Culture System to Study Thyroid Development
Published on: June 6, 2014
Glycolytic suppression of cell adhesion promotes thyroid morphogenesis in response to nutrition
Asako Shindo1,2, Shiho Nishiguchi3, Ayaka Fujiwara4
1Department of Biological Sciences, Graduate School of Science, The University of Osaka, Toyonaka, Japan. shindo.asako.sci@osaka-u.ac.jp.
Abstract:
Organ morphogenesis relies on collective cellular behaviors. While intrinsic developmental programs governing cellular behaviors are well characterized, the effects of environmental and systemic factors on these behaviors remain poorly understood. Here, we investigate how nutritional availability modulates cellular behaviors during thyroid morphogenesis using Xenopus tadpoles as an in vivo model. RNA-seq analysis of thyroid regions from fed and unfed tadpoles shows that nutritional status alters gene expression profiles. We identify cell adhesion-related genes as key targets, with expression increased in unfed tadpoles and decreased in fed tadpoles. Immunostaining for E-cadherin supports the RNA-seq results, and functional inhibition of E-cadherin facilitates thyroid follicle formation. We further demonstrate that glycolytic activity reduces junctional E-cadherin accumulation in the thyroid, linking metabolism to the regulation of cell adhesion. Lastly, thyroid cells forming multi-luminal structures exhibit distinct apical-basal polarity, and these structures are enhanced by glycolytic activity and suppression of cell adhesion. These findings reveal a mechanism by which nutritional status remodels cellular properties underlying collective cellular behaviors during organ morphogenesis.
Insights
Nutritional status impacts thyroid development by altering cell adhesion. Reduced food intake increases cell adhesion, while higher intake and glycolysis decrease it, influencing organ morphogenesis.
Area of Science:
- Developmental Biology
- Cellular Biology
- Metabolism
Background:
- Organ morphogenesis depends on collective cell behaviors, but environmental factors like nutrition are poorly understood.
- Intrinsic developmental programs are known, but extrinsic influences on cell behavior require further investigation.
Purpose of the Study:
- To investigate how nutritional availability modulates cellular behaviors during thyroid morphogenesis in Xenopus tadpoles.
- To understand the link between metabolism, cell adhesion, and organ development.
Main Methods:
- RNA sequencing (RNA-seq) to analyze gene expression in fed vs. unfed tadpoles.
- Immunostaining for E-cadherin and functional inhibition assays.
- Assessment of glycolytic activity and its effect on cell adhesion and polarity.
Main Results:
- Nutritional status significantly alters gene expression, particularly for cell adhesion genes.
- E-cadherin expression is inversely correlated with nutritional availability and enhanced by glycolysis.
- Suppression of cell adhesion and increased glycolysis promote multi-luminal thyroid structures.
Conclusions:
- Nutritional status regulates thyroid morphogenesis by modulating cell adhesion through metabolic pathways.
- Glycolysis reduces E-cadherin, impacting cell-cell interactions and thyroid follicle formation.
- This study reveals a mechanism connecting nutrition, metabolism, and collective cell behaviors in organ development.
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