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Cross-species single-cell transcriptomic analysis reveals the landscape of animal gastric antrum

ABSTRACT: This SuperSeries is composed of the SubSeries listed below.

ORGANISM(S): Rattus norvegicus Mus musculus Sus scrofa Homo sapiens

PROVIDER: GSE225276 | GEO | 2023/09/11

REPOSITORIES: GEO

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Cross-species single-cell transcriptomic analysis of animal gastric antrum reveals intense porcine mucosal immunity.

Project description:As an important part of the stomach, gastric antrum secretes gastrin which can regulate acid secretion and gastric emptying. Although most cell types in the gastric antrum are identified, the comparison of cell composition and gene expression in the gastric antrum among different species are not explored. In this study, we collected antrum epithelial tissues from human, pig, rat and mouse for scRNA-seq and compared cell types and gene expression among species. In pig antral epithelium, we identified a novel cell cluster, which is marked by high expression of AQP5, F3, CLCA1 and RRAD. We also discovered that the porcine antral epithelium has stronger immune function than the other species. Further analysis revealed that this may be due to the insufficient function of porcine immune cells. Together, our results replenish the information of multiple species of gastric antral epithelium at the single cell level and provide resources for understanding the homeostasis maintenance and regeneration of gastric antrum epithelium.

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Cross-species single-cell transcriptomic analysis reveals the landscape of animal gastric antrum [RNA-Seq]

Project description:Purpose: One goal of the bulk RNA-seq of organoids is to verify the differentially expressed genes between species identified by scRNA-seq .The other goal is to detected the differentially expressed genes when organoids from different species were treated with TNFα Methods: The total RNA from organoids was extracted by RNeasy Mini Kit (Qiagen). After total RNA extraction and then subjected to high-throughput sequencing on an Illumina Novaseq 6000 platform. Results: Most of the differentially expressed genes between species identified by bulk RNA-seq are consistent with the genes filtered by scRNA-seq. Conclusions: F3 and CLCA1 show higher expression in organoids of pig antral epithelium than in other three species. TNFα treatment upregulated the expression of immune response genes in all species

2023-09-11 | GSE225274 | GEO

Cross-species single-cell transcriptomic analysis reveals the landscape of animal gastric antrum [scRNA-Seq]

Project description:Purpose: To reveal the consistency and difference of gastric antrum epithelial cells among species and provides insights into the selection of model organisms in different research directions in the future. Methods:In this study, we collected antrum epithelial tissues from human, pig, rat and mouse for scRNA-seq and conducted cross species analysis. Results: In pig antral epithelium, we identify a novel cell cluster. We also discovered that the porcine antral epithelium owns stronger immune function than the other species. Further analysis reveals this may be due to the insufficient function of porcine immune cells. Conclusions:Our results replenish the information of multiple species of gastric antral epithelium at the single cell level, providing data resources for understanding the basic situation of gastric antrum epithelial cells.

2023-09-11 | GSE225275 | GEO

Cross-species single-cell transcriptomic analysis reveals the landscape of animal gastric antrum

Project description:Cross-species single-cell transcriptomic analysis reveals the landscape of animal gastric antrum

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Cross-species single-cell transcriptomic analysis reveals the landscape of animal gastric antrum [RNA-Seq]

Project description:Cross-species single-cell transcriptomic analysis reveals the landscape of animal gastric antrum [RNA-Seq]

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Cross-species single-cell transcriptomic analysis reveals the landscape of animal gastric antrum [scRNA-Seq]

Project description:Cross-species single-cell transcriptomic analysis reveals the landscape of animal gastric antrum [scRNA-Seq]

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Cross-species single-cell transcriptomic analysis reveals divergence of cell composition and functions in mammalian ileum epithelium

Project description:This SuperSeries is composed of the SubSeries listed below.

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Cross-species single-cell transcriptomic analysis reveals pre-gastrulation developmental differences among pigs, monkeys, and humans.

Project description:Interspecies blastocyst complementation enables organ-specific enrichment of xenogeneic pluripotent stem cell (PSC) derivatives, which raises an intriguing possibility to generate functional human tissues/organs in an animal host. However, differences in embryo development between human and host species may constitute the barrier for efficient chimera formation. Here, to understand these differences we constructed a complete single-cell landscape of early embryonic development of pig, which is considered one of the best host species for human organ generation, and systematically compared its epiblast development with that of human and monkey. Our results identified a developmental coordinate of pluripotency spectrum among pigs, humans and monkeys, and revealed species-specific differences in: (1) pluripotency progression; (2) metabolic transition; (3) epigenetic and transcriptional regulations of pluripotency; (4) cell surface proteins; and (5) trophectoderm development. These differences may prevent proper recognition and communication between donor human cells and host pig embryos, resulting in low integration and survival of human cells. These results offer new insights into evolutionary conserved and divergent processes during mammalian development and may be helpful for developing effective strategies to overcome low human-pig chimerism, thereby enabling the generation of functional human organs in pigs in the future.

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Cross-species transcriptomic approach reveals genes in hamster implantation sites.

Project description:The mouse model has greatly contributed to understanding molecular mechanisms involved in the regulation of progesterone (P4) plus estrogen (E)-dependent blastocyst implantation process. However, little is known about contributory molecular mechanisms of the P4-only-dependent blastocyst implantation process that occurs in species such as hamsters, guineapigs, rabbits, pigs, rhesus monkeys, and perhaps humans. We used the hamster as a model of P4-only-dependent blastocyst implantation and carried out cross-species microarray (CSM) analyses to reveal differentially expressed genes at the blastocyst implantation site (BIS), in order to advance the understanding of molecular mechanisms of implantation. Upregulation of 112 genes and downregulation of 77 genes at the BIS were identified using a mouse microarray platform, while use of the human microarray revealed 62 up- and 38 down-regulated genes at the BIS. Excitingly, a sizable number of genes (30 up- and 11 down-regulated genes) were identified as a shared pool by both CSMs. Real-time RT-PCR and in situ hybridization validated the expression patterns of several up- and down-regulated genes identified by both CSMs at the hamster and mouse BIS to demonstrate the merit of CSM findings across species, in addition to revealing genes specific to hamsters. Functional annotation analysis found that genes involved in the spliceosome, proteasome, and ubiquination pathways are enriched at the hamster BIS, while genes associated with tight junction, SAPK/JNK signaling, and PPARα/RXRα signalings are repressed at the BIS. Overall, this study provides a pool of genes and evidence of their participation in up- and down-regulated cellular functions/pathways at the hamster BIS.

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Construction of a cross-species chromatin accessibility landscape at a single-cell level using CH-ATAC-seq

Project description:This SuperSeries is composed of the SubSeries listed below.

2024-01-15 | GSE232162 | GEO