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Modeling of Alpha-1 Antitrypsin Deficiency with Syngeneic Human iPSC-Hepatocytes Reveals Metabolic Dysfunction and Cellular Heterogeneity in PiMZ and PiZZ Hepatic Cells (bulk RNA-Seq)

ABSTRACT: Modeling of Alpha-1 Antitrypsin Deficiency with Syngeneic Human iPSC-Hepatocytes Reveals Metabolic Dysfunction and Cellular Heterogeneity in PiMZ and PiZZ Hepatic Cells (bulk RNA-Seq)

PROVIDER: PRJNA814258 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR18278831_1.fastq.gz	Fastqsanger.gz
	SRR18278831_2.fastq.gz	Fastqsanger.gz
	SRR18278832_1.fastq.gz	Fastqsanger.gz
	SRR18278832_2.fastq.gz	Fastqsanger.gz
	SRR18278833_1.fastq.gz	Fastqsanger.gz

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Modeling of Alpha-1 Antitrypsin Deficiency with Syngeneic Human iPSC-Hepatocytes Reveals Metabolic Dysfunction and Cellular Heterogeneity in PiMZ and PiZZ Hepatic Cells (scRNA-Seq)

Project description:Individuals homozygous for the "Z" mutation in alpha-1 antitrypsin deficiency are known to be at increased risk for liver disease. It has also become clear that some degree of risk is similarly conferred by the heterozygous state. A lack of model systems that recapitulate heterozygosity in human hepatocytes has limited the ability to study the impact of a single Z alpha-1 antitrypsin (ZAAT) allele on hepatocyte biology. Here, we describe the derivation of syngeneic induced pluripotent stem cells (iPSCs) engineered to determine the effects of ZAAT heterozygosity in iPSC-hepatocytes (iHeps). We find that heterozygous MZ iHeps exhibit an intermediate disease phenotype and share with ZZ iHeps alterations in AAT protein processing and downstream perturbations including altered endoplasmic reticulum (ER) and mitochondrial morphology, reduced mitochondrial respiration, and branch-specific activation of the unfolded protein response in cell subpopulations. Our model of MZ heterozygosity thus provides evidence that a single Z allele is sufficient to disrupt hepatocyte homeostatic function.

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Modeling of Alpha-1 Antitrypsin Deficiency with Syngeneic Human iPSC-Hepatocytes Reveals Metabolic Dysfunction and Cellular Heterogeneity in PiMZ and PiZZ Hepatic Cells

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Modeling of Alpha-1 Antitrypsin Deficiency with Syngeneic Human iPSC-Hepatocytes Reveals Metabolic Dysfunction and Cellular Heterogeneity in PiMZ and PiZZ Hepatic Cells (scRNA-Seq)

Project description:Modeling of Alpha-1 Antitrypsin Deficiency with Syngeneic Human iPSC-Hepatocytes Reveals Metabolic Dysfunction and Cellular Heterogeneity in PiMZ and PiZZ Hepatic Cells (scRNA-Seq)

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Modeling of Alpha-1 Antitrypsin Deficiency with Syngeneic Human iPSC-Hepatocytes Reveals Metabolic Dysfunction and Cellular Heterogeneity in PiMZ and PiZZ Hepatic Cells

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