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A hollow fiber membrane-based liver organoid-on-a-chip model for examining drug metabolism and transport

ABSTRACT: A hollow fiber membrane-based liver organoid-on-a-chip model for examining drug metabolism and transport

PROVIDER: PRJNA1120419 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR29294528.fastq.gz	Fastqsanger.gz
	SRR29294529.fastq.gz	Fastqsanger.gz
	SRR29294530.fastq.gz	Fastqsanger.gz
	SRR29294531.fastq.gz	Fastqsanger.gz
	SRR29294532.fastq.gz	Fastqsanger.gz

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A hollow fiber membrane-based liver organoid-on-a-chip model for examining drug metabolism and transport

Project description:Liver-on-a-chip models predictive for both metabolism and transport of drug candidates in humans are lacking. Here, we have established an advanced, bioengineered and animal-free hepatocyte-like millifluidic system based on 3D hollow fiber membranes (HFMs), recombinant human laminin 332 and adult human stem cell-derived organoids. Organoid cells formed polarized and tight monolayers on HFMs, which displayed improved hepatocyte-like maturation over standard organoid cultures in Matrigel from matched donors. mRNA sequencing and immunofluorescence revealed that HFM cultures exhibited the expression of broad panel of phase I and II drug metabolizing enzymes, and of drug transporters. Functionally, in both static conditions and under flow circulation, HFM monolayers metabolized a cocktail of drugs that are targets for most important phase I and II enzymes. In addition, we were able to study disposition of those parental compounds and their metabolites in the basal circulation and apical compartment of the chip. Moreover, we demonstrated that our system can be used to study drug disposition in a modular setting with other PK/ADME-relevant organ systems. In conclusion, we have generated a proof-of-concept liver organoid-on-a-chip model for examining both metabolism and transport of drugs, which can be further developed towards prediction of PK/ADME profiles in humans.

2025-03-05 | GSE269150 | GEO

Influence of three-dimensional culture in an interwoven hollow fiber bioreactor on the gene expression profile of hepatic HepG2 cells

Project description:Purpose: In this study, we aimed to elucidate the specific molecular mechanisms that are activated when hepatic cells are cultured in the 3D environment of an interwoven hollow fiber bioreactor device. Methods: HepG2 human hepatocellular carcinoma cells were either cultured in an interwoven hollow fiber bioreactor or on a conventional two-dimensional (2D) surface. The cells were harvested and RNA sequencing was performed to identify the differentially expressed genes between the two culture conditions. Ingenuity Pathway Analysis (IPA) software was utilized to algorithmically generate gene networks and canonical pathways that were either activated or repressed as a result of the experimental conditions. Results: RNA sequencing analysis identified 5,711 genes that were differentially expressed (FDR < 0.05). Of these, 1,248 genes were biologically upregulated (FC > 2) and 629 genes were biologically downregulated (FC < -2). Several of these upregulated genes have known associations with metabolic activity, cellular proliferation, and apico-basal cell organization. IPA analysis confirmed the likely activation of metabolic pathways in 3D culture and suggest a strong relationship between hepatic metabolism, cell-cell interactions, and polarity markers Conclusions: Our results demonstrate the likely activation of metabolic pathways in 3D culture and suggest a strong relationship between hepatic metabolism, cell-cell interactions, and polarity markers. Further experimentation must be performed to further elucidate the connections between these pathways.

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Reduced membrane fouling in an anaerobic electrochemical membrane bioreactors using graphene-coated hollow fiber membranes as the cathode

Project description:Reduced membrane fouling in an anaerobic electrochemical membrane bioreactors using graphene-coated hollow fiber membranes as the cathode

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Transcription profiling of mouse prostate cancer fiber model

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Evaluation of temocillin efficacy against KPC-2 producing K. pneumoniae isolates in a hollow- fiber infection model.

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Influence of three-dimensional culture in an interwoven hollow fiber bioreactor on the gene expression profile of hepatic HepG2 cells

Project description:Influence of three-dimensional culture in an interwoven hollow fiber bioreactor on the gene expression profile of hepatic HepG2 cells

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Project description:Novel poly(tetrafluoroethylene) (PTFE) hollow fiber membranes were successfully fabricated by electrospinning, with ultrafine fibrous PTFE membranes as separation layers, while a porous glassfiber braided tube served as the supporting matrix. During this process, PTFE/poly(vinylalcohol) (PVA) ultrafine fibrous membranes were electrospun while covering the porous glassfiber braided tube; then, the nascent PTFE/PVA hollow fiber membrane was obtained. In the following sintering process, the spinning carrier PVA decomposed; meanwhile, the ultrafine fibrous PTFE membrane shrank inward so as to further integrate with the supporting matrix. Therefore, the ultrafine fibrous PTFE membranes had excellent interface bonding strength with the supporting matrix. Moreover, the obtained ultrafine fibrous PTFE hollow fiber membrane exhibited superior performances in terms of strong hydrophobicity (CA > 140°), high porosity (>70%), and sharp pore size distribution. The comprehensive properties indicated that the ultrafine fibrous PTFE hollow fiber membranes could have potentially useful applications in membrane contactors (MC), especially membrane distillation (MD) in harsh water environments.

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