scholarly journals An organoid and multi-organ developmental cell atlas reveals multilineage fate specification in the human intestine

Author(s):  
Qianhui Yu ◽  
Umut Kilik ◽  
Emily M. Holloway ◽  
Yu-Hwai Tsai ◽  
Angeline Wu ◽  
...  

Human intestinal organoids (HIOs) generated from pluripotent stem cells provide extraordinary opportunities to explore development and disease. Here, we generate a single-cell transcriptome reference atlas from HIOs and from multiple developing human organs to quantify the specificity of HIO cell fate acquisition, and to explore alternative fates. We identify epithelium-mesenchyme interactions, transcriptional regulators involved in cell fate specification, and stem cell maturation features in the primary tissue that are recapitulated in HIOs. We use an HIO time course to reconstruct the molecular dynamics of intestinal stem cell emergence, as well as the specification of multiple mesenchyme subtypes. We find that the intestinal master regulator CDX2 correlates with distinct phases of epithelial and mesenchymal development, and CDX2 deletion perturbs the differentiation of both intestinal epithelium and mesenchyme. Collectively our data provides a comprehensive and quantitative assessment of HIO development, and illuminates the molecular machinery underlying endodermal and mesodermal cell fate specification.

2005 ◽  
Vol 14 (2) ◽  
pp. 140-152 ◽  
Author(s):  
Gurudutta U. Gangenahalli ◽  
Pallavi Gupta ◽  
Daman Saluja ◽  
Yogesh K. Verma ◽  
Vimal Kishore ◽  
...  

2017 ◽  
Vol 429 (10) ◽  
pp. 1439-1440
Author(s):  
Greg M. Findlay ◽  
Laurent David ◽  
Tobias A. Beyer

2019 ◽  
Author(s):  
Jiang Xie ◽  
Fuzhang yang ◽  
Jiamin Sun ◽  
Jiao Wang

Abstract Background Neural stem cell (NSC) differentiation is one of many multi-stage lineage systems that require multiple cell fate decisions. Recent single-cell transcriptome datasets became available at individual differentiation, however, a systematic and integrative analysis of multiple datasets at multiple temporal points of NSC differentiation is lacking. Results Here we investigate five NSC differentiation paths by analyzing and comparing four different single-cell transcriptome datasets. By constructing gene regulatory networks for each cell type, we delineate their regulatory patterns via analyses of differential topology and network diffusion. Among the five NSC differentiation paths, we find 12 common differentially expressed genes, with one common three-gene regulatory pattern shared by all paths. The identified regulatory pattern, partly supported by previous experimental evidence, is found to be essential to all differentiation paths, however, plays a different role in each path when regulating other genes. Conclusions Together, our integrative analysis provides both common and specific regulatory mechanisms for each of the five NSC differentiation paths, and the approach can be applied to analyzing other complex multi-stage lineage systems.


Genes ◽  
2020 ◽  
Vol 11 (11) ◽  
pp. 1363
Author(s):  
Xiao Huang ◽  
Liyue Zhang ◽  
Shanshan Yang ◽  
Yongpu Zhang ◽  
Mingjiang Wu ◽  
...  

Gastrulation drives the establishment of three germ layers and embryonic axes during frog embryonic development. Mesodermal cell fate specification and morphogenetic movements are vital factors coordinating gastrulation, which are regulated by numerous signaling pathways, such as the Wnt (Wingless/Integrated), Notch, and FGF (Fibroblast growth factor) pathways. However, the coordination of the Notch and FGF signaling pathways during gastrulation remains unclear. We identified a novel helix–loop–helix DNA binding domain gene (Hes5.9), which was regulated by the FGF and Notch signaling pathways during gastrulation. Furthermore, gain- and loss-of-function of Hes5.9 led to defective cell migration and disturbed the expression patterns of mesodermal and endodermal marker genes, thus interfering with gastrulation. Collectively, these results suggest that Hes5.9 plays a crucial role in cell fate decisions and cell migration during gastrulation, which is modulated by the FGF and Notch signaling pathways.


2020 ◽  
Author(s):  
Meaghan Marohn ◽  
Meng-ju Lin ◽  
Wei-wen Yu ◽  
Ciara Mae Mendoza ◽  
Juliana Remark ◽  
...  

AbstractHidradenitis suppurativa (HS) is a severe chronic inflammatory skin disease affecting human apocrine sweat gland-bearing skin regions. One unique feature of HS is the development of keratinized sinus tracts that grow extensively deep in the dermis and are highly immunogenic. Here, we demonstrated that the stem cell fate infidelity exists in the HS sinus tracts, which exhibit features of both surface epidermis and appendages. Using single cell transcriptome analyses, we finely dissected different compartments of the HS epithelium and identified their respective changes in cytokine expression during disease progression and the critical interactions with the immune cells. Together, our work provides advanced understanding of the pathological epidermal remodeling and important implications for HS therapeutics.


Author(s):  
Mohammed M Mira ◽  
Eman A El-Khateeb ◽  
Reda M Gaafar ◽  
Abir U Igamberdiev ◽  
Robert D Hill ◽  
...  

Overexpression of phytoglobin retains stem cell fate specification and function in hypoxic root apical meristems


Cell Reports ◽  
2021 ◽  
Vol 35 (7) ◽  
pp. 109124
Author(s):  
Hideyuki Nakashima ◽  
Keita Tsujimura ◽  
Koichiro Irie ◽  
Takuya Imamura ◽  
Cleber A. Trujillo ◽  
...  

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