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Homo sapiens

ABSTRACT: Sequencing data of Human liver organoid treated with beta-amyloid decoding experimental Biliary Atresia

PROVIDER: PRJNA550016 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR9427530_1.fastq.gz	Fastqsanger.gz
	SRR9427530_2.fastq.gz	Fastqsanger.gz
	SRR9427531_1.fastq.gz	Fastqsanger.gz
	SRR9427531_2.fastq.gz	Fastqsanger.gz
	SRR9427532_1.fastq.gz	Fastqsanger.gz

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Homo sapiens

Project description:Human liver organoid sequencing data decoding Biliary Atresia

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Project description:Liver biopsy samples were obtained from 64 infants with biliary atresia at the time of intraoperative cholangiogram. Liver biopsy samples were obtained from 14 age-matched infants with other causes of intrahepatic cholestasis, and from 7 deceased-donor children. GeneChip® Human Gene 1.0 ST Array (Affymetrix, CA) were used to screen mRNAs whose expression was specifically regulated in the livers from patients with biliary atresia. Gene expression profiling: Liver biopsy samples obtained from infantas with other causes of intrahepatic cholestasis were served as diseased control. Liver tissue obtained from deceased-donor children were served as normal control. A molecular signataure of biliary atresia at the time of diagnosis was identified by comparing hepatic gene expression profile from biliary atresia to those from diseased and normal controls. This dataset is part of the TransQST collection.

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Project description:Background: RNASeq was performed on organoids derived from livers of normal healthy donors and patients with biliary atresia to characterize transcriptomic signatures. Methods: Organoids generated from livers of normal healthy donors and patients with biliary atresia were cultured either in expansion (undifferentiated: 3 NCOs and 11 BACOs) or differentiation medium (differentiated: 3 BACOs). Liver tissues obtained from deceased-donor subjects served as normal controls (N=3). Total RNA was isolated from organoids and liver biopsy tissue specimens. Results: Organoids from patients with biliary atresia showed abnormal cell polarity, loss of tight junctions, increased permeability and decreased expression of genes related to epidermal growth factor (EGF)- and fibroblast growth factor 2 (FGF2)-signaling. When treated with EGF+FGF2, biliary atresia organoids expressed differentiation and functional markers with restored cell polarity. Conclusion: Organoids from biliary atresia are viable and have evidence of halted epithelial development. The induction of developmental markers, improved cell‐cell junction, and decreased epithelial permeability by EGF and FGF2 identifies potential strategies to promote epithelial maturation and function.

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