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Multi-Omics Uncover Neonatal Cecal Cell Development Potentials.
Liang Chen1, Qingshi Meng1, Shen Li1
1State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, China.
Frontiers in Cell and Developmental Biology
|August 1, 2022
Summary
This study reveals the developmental trajectories of six major cecal cell types in neonatal piglets at a single-cell level. It highlights the dynamic changes in cell populations and their correlation with microbial and metabolic shifts during early development.
Area of Science:
- Developmental biology
- Gastrointestinal immunology
- Microbiome research
Background:
- The cecum is crucial for nutrient absorption and immune function, harboring a complex microbial community.
- Understanding neonatal cecal development at a single-cell resolution is essential but largely unexplored.
- Neonatal development presents a critical window for establishing gut health and immune homeostasis.
Purpose of the Study:
- To characterize cecal cell development and maturation during the neonatal period using single-cell technologies.
- To investigate the interplay between cecal cell populations, microbial communities, and host metabolism.
- To identify key factors influencing neonatal cecal development and maturation.
Main Methods:
- Single-cell RNA sequencing and proteomics were employed to profile cecal cells.
- Analysis included cell type identification, quantification, and tracking of developmental trends.
- Correlations between cell populations, microbiota composition, and plasma metabolites were assessed.
Main Results:
- Six major cecal cell types were identified: undifferentiated cells, immune cells (Ims), cecumocytes (CCs), goblet cells, Paneth-like cells (PLCs), and enteroendocrine cells (EECs).
- Distinct developmental patterns were observed, with CCs decreasing and Ims increasing proportionally over time.
- Goblet and EEC cell proportions decreased, while PLCs showed an initial increase followed by a decrease; these changes correlated with increasing microbial diversity and specific cecal cell types and metabolites.
Conclusions:
- This study provides the first comprehensive single-cell view of neonatal cecal development, integrating transcriptomic, proteomic, microbial, and metabolic data.
- The findings reveal dynamic cell population shifts and their correlations with microbial colonization and host metabolism.
- This research offers a valuable resource for understanding cecal development and developing novel interventions for drug delivery and metabolic studies.
