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Microfluidic device with brain extracellular matrix promotes structural and functional maturation of human brain organoids

ABSTRACT: Microfluidic device with brain extracellular matrix promotes structural and functional maturation of human brain organoids

PROVIDER: PRJNA607060 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR11095974_1.fastq.gz	Fastqsanger.gz
	SRR11095974_2.fastq.gz	Fastqsanger.gz
	SRR11095975_1.fastq.gz	Fastqsanger.gz
	SRR11095975_2.fastq.gz	Fastqsanger.gz
	SRR11095976_1.fastq.gz	Fastqsanger.gz

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Microfluidic device with brain extracellular matrix promotes structural and functional maturation of human brain organoids

Project description:We established a platform for the brain organoid culture by using human decellularized brain extracellular matrix (BEM) and a microfluidic device. This engineering concept of reconstituting brain-mimetic microenvironments facilitates development of a reliable culture platform for brain organoids, enabling effective modeling and drug development.

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Combination of a microfluidic device with brain extracellular matrix promotes structural and functional maturation of human brain organoids

Project description:Brain organoids derived from human pluripotent stem cells provide a highly valuable in vitro model to recapitulate human brain development and neurological diseases. However, the current systems for brain organoid culture require further improvement for the reliable production of high-quality organoids. Here, we demonstrate two engineering elements to improve human brain organoid culture, (1) a human brain extracellular matrix (BEM) to provide brain-specific cues and (2) a microfluidic device with periodic flow to improve the survival and reduce the variability of organoids. A three-dimensional culture modified with BEM significantly enhanced neurogenesis in developing brain organoids from human induced pluripotent stem cells. Cortical layer development, volumetric augmentation, and electrophysiological function of human brain organoids were further improved in a reproducible manner by dynamic culture in microfluidic chamber devices. Our engineering concept of reconstituting brain-mimetic microenvironments facilitates the development of a reliable culture platform for brain organoids, enabling effective modeling and drug development for human brain diseases.

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PepS: a microfluidic device to process whole blood at bedside for plasma proteomic analyses

Project description:Immunoassays have been used for decades in clinical laboratories to quantify proteins in serum/plasma samples. However, different limitations hinder their use in some cases. Mass spectrometry (MS)-based proteomics analysis has recently appeared as a promising option to assess panels of protein biomarkers and provide protein profiles useful for health state monitoring. Nevertheless, translation of MS-based proteomics into the clinics is still hampered by the complexity, the substantial time and human workforce necessary for sample preparation. The processing of plasma matrix is especially tricky as it contains more than 3000 proteins spanning in an extreme dynamic range (10e10) of concentrations. To address this pre-analytical challenge, we have conceived a microfluidic device (PepS) to automate and accelerate blood sample preparation for bottom-up MS-based proteomic analysis. The microfluidic cartridge is operated through a dedicated compact instrument providing fully automated fluid processing and thermal control. In less than 2 hours, PepS device enables whole blood collection at the bedside, plasma separation and calibration, depletion of albumin, protein digestion with trypsin and stabilization of tryptic peptides on solid phase extraction sorbent. The performance of PepS device was assessed using discovery proteomics and targeted proteomics on a panel of three protein biomarkers routinely assayed in clinical laboratories. This innovative microfluidic device and associated instrumentation is expected to streamline and simplify clinical proteomic studies.

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