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A multimodal cross-species comparison of pancreas development
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Journal Article
A multimodal cross-species comparison of pancreas development
2025
Overview
Human pancreas development remains incompletely characterized due to restricted sample access. We investigate whether pigs resemble humans in pancreas development, offering a complementary large-animal model. As pig pancreas organogenesis is unexplored, we first annotate developmental hallmarks throughout its 114-day gestation. Building on this, we construct a pig single-cell multiome pancreas atlas across all trimesters. Cross-species comparisons reveal pigs resemble humans more closely than mice in developmental tempo, epigenetic and transcriptional regulation, and gene regulatory networks. This further extends to progenitor dynamics and endocrine fate acquisition. Transcription factors regulated by NEUROG3, the endocrine master regulator, are over 50% conserved between pig and human, many being validated in human stem cell models. Notably, we uncover that during embryonic development, emerging beta-cell heterogeneity coincides with a species-conserved primed endocrine cell (PEC) population alongside NEUROG3-expressing cells. Overall, our work lays the foundation for comparative investigations and offers unprecedented insights into evolutionarily conserved pancreas organogenesis mechanisms across animal models.
This study establishes the pig as a complementary model for studying human pancreas development. It shows pigs mimic human developmental tempo, gene regulation, and endocrine cell emergence, offering a valuable large-animal model for developmental biology.
Publisher
Nature Publishing Group UK,Nature Publishing Group,Nature Portfolio
Subject
/ 13/51
/ 14/19
/ 14/32
/ 38/39
/ Animals
/ Basic Helix-Loop-Helix Transcription Factors - genetics
/ Basic Helix-Loop-Helix Transcription Factors - metabolism
/ Embryos
/ Female
/ Gene Expression Regulation, Developmental
/ Glucagon
/ Hogs
/ Humanities and Social Sciences
/ Humans
/ Insulin
/ Insulin-Secreting Cells - cytology
/ Insulin-Secreting Cells - metabolism
/ Mice
/ Nerve Tissue Proteins - genetics
/ Nerve Tissue Proteins - metabolism
/ Pancreas
/ Science
/ Swine
