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Scaffold-free cryopreservable cartilage grafts obtained from hiPSC-derived chondroprogenitor cells for airway reconstruction with growth adaptability

ABSTRACT: Scaffold-free cryopreservable cartilage grafts obtained from hiPSC-derived chondroprogenitor cells for airway reconstruction with growth adaptability

PROVIDER: PRJNA1272458 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR33839933_1.fastq.gz	Fastqsanger.gz
	SRR33839933_2.fastq.gz	Fastqsanger.gz
	SRR33839934_1.fastq.gz	Fastqsanger.gz
	SRR33839934_2.fastq.gz	Fastqsanger.gz

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Scaffold-free cryopreservable cartilage grafts obtained from hiPSC-derived chondroprogenitor cells for airway reconstruction with growth adaptability

Project description:Pediatric tracheal reconstruction remains a major clinical challenge because of limited graft availability and the need for growth-adaptive materials. Current approaches, such as costal cartilage grafting and use of scaffold-based constructs, often suffer from complications including graft resorption, donor site morbidity, and poor integration. Here, we present scaffold-free cartilage grafts (chondro-plates) derived from expandable limb-bud mesenchymal cells generated from human leukocyte antigen-homozygous human induced pluripotent stem cells. These grafts are cryopreservable and maintain their hyaline cartilage phenotype after a brief pre-culture. In both rat and rabbit tracheal defect models, chondro-plates supported robust cartilage regeneration, epithelial reconstitution, and neovascularization. Importantly, in a pediatric-like growing rat model, chondro-plates preserved luminal patency and structural integrity, outperforming autologous costal cartilage. This study demonstrates a clinically viable, off-the-shelf strategy for tracheal reconstruction using scalable, immunocompatible, and growth-adaptive cartilage grafts.

2025-06-11 | GSE299047 | GEO

Transcriptome analysis of single cell-derived hiPSC-lt-NES cell clones

Project description:To identify cell-populations within human iPSC-derived long-term self-renewing neural epithelial stem cells (hiPSC-lt-NES cells) which retain capacities to generate undesired grafts, we established single cell-derived hiPSC-lt-NES cell clones and performed gene expression microarray analysis.

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Transcriptome analysis of hiPSC derived lt-NES cells

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Engineering transplantable jejunal mucosal grafts using primary patient-derived organoids for children with intestinal failure

Project description:Intestinal failure (IF), following extensive anatomical or functional loss of small intestine (SI), hasdebilitating long-term consequences on children1. Priority of care is to increase the child’s length of functional intestine, jejunum in particular, to promote nutritional independence2. Here we construct autologous jejunal mucosal grafts using primary patient biomaterials. We show that organoids derived from patients can be expanded efficiently in vitro. In parallel, we generate decellularized human intestinal matrix with intact nanotopography, which form optimal biological scaffolds. Remarkably, proteomic and Raman spectroscopy analyses reveal highly analogous biochemical profiles of human SI and colon scaffolds, indicating that both can be used interchangeably as platforms for intestinal engineering. Indeed, seeding jejunal organoids onto either scaffold type reliably reconstructs grafts that exhibit several aspects of physiological jejunal function with potential to survive after transplantation. Our findings provide proof-of-concept data for engineering IF patient-specific jejunal grafts, ultimately aiding in restoration of nutritional autonomy.

2020-09-16 | PXD019816 | Pride

Lakshman scaffold

Project description:Lakshman Kund scaffold Metagenomic assembly

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Transcription profiling of human adult to adult living donor liver grafts compared to deceased donor grafts

Project description:Because of inherent differences between deceased donor (DD) and living donor (LD) liver grafts, we hypothesize that the molecular signatures will be unique, correlating with specific biologic pathways and clinical patterns. Following reperfusion, 579 genes in DD grafts and 1324 genes in LDs were differentially expressed (p<0.005). Many up-regulated LD genes were related to regeneration, biosynthesis and cell cycle, and a large number of down-regulated genes were linked to hepatic metabolism and energy pathways correlating with post-transplant clinical laboratory findings. There was significant up-regulation of inflammatory/immune genes in both DD and LD, each with a distinct pattern. Gene expression patterns of select genes associated with inflammation and regeneration in LD and DD grafts correlated with protein expression. Unique patterns of early gene expression are seen in LD and DD liver grafts, correlating with protein expression and clinical results, demonstrating distinct inflammatory profiles and significant down-regulation of metabolic pathways in LD grafts. Experiment Overall Design: Microarray profiles of 63 biopsies in 13 DD and 8 LD liver grafts done at serial time points (procurement - No Manipulation, backbench - Cold Preservation, and 1-hour post-reperfusion - Post reperfusion) were compared between groups using class comparisons, network and biological function analyses. Specific genes were validated by quantitative PCR and immunopathology. Clinical findings were also compared.

2009-06-23 | E-GEOD-12720 | biostudies-arrayexpress

Investigating hiPSC-CMs_DongLi

Project description:Proteomic analysis of hiPSC-CMs with drug treatment

2021-05-01 | MSV000087351 | MassIVE

Unique early gene expression patterns in adult to adult living donor liver grafts compared to deceased donor grafts

Project description:Because of inherent differences between deceased donor (DD) and living donor (LD) liver grafts, we hypothesize that the molecular signatures will be unique, correlating with specific biologic pathways and clinical patterns. Following reperfusion, 579 genes in DD grafts and 1324 genes in LDs were differentially expressed (p<0.005). Many up-regulated LD genes were related to regeneration, biosynthesis and cell cycle, and a large number of down-regulated genes were linked to hepatic metabolism and energy pathways correlating with post-transplant clinical laboratory findings. There was significant up-regulation of inflammatory/immune genes in both DD and LD, each with a distinct pattern. Gene expression patterns of select genes associated with inflammation and regeneration in LD and DD grafts correlated with protein expression. Unique patterns of early gene expression are seen in LD and DD liver grafts, correlating with protein expression and clinical results, demonstrating distinct inflammatory profiles and significant down-regulation of metabolic pathways in LD grafts. Keywords: liver transplantation, live donor transplantation, liver regeneration, microarrays, mRNA expression, reperfusion injury

2009-06-11 | GSE12720 | GEO

Murine host body reactions to implanted scaffolds: non-coat polystyrene scaffold vs. collagen- or PMB-coated scaffold

Project description:This study investigated early host reactions to implanted materials to predict successful tissue regeneration with implant. Three kinds of scaffold, i.e., non-coat, collagen-coated, and PMB-coated porous polystylene scaffolds were implanted subcutaneously in mice dorsal area. Those scaffolds were used as bio-incomopatible materials, appropriate materials for tissue regeneration (bio active), and inappropriate to regenration (bio-inert) scaffolds. Seven days after implantation, scaffolds were explanted and total RNA was isolated from infiltrated host cells into scaffold by laser microdissection. Gene expressions of cells in collagen- and PMB-coated scaffold were normalized using results of non coat scaffold. Genes with more than 2-fold difference between collagen and PMB were picked up and narrowed to related keywords; inflammation, angiogenesis, wound healing, and mcrophage polarization. Among those genes, interluekin (IL)-1beta which promote both inflammation and wound healing was up-regulated in collagen-coated scaffold. On the other hand, IL-10 which suppress both inflammation and wound healing was up-regulated in PMB-coated scaffold. Angiogenesis-promoting genes were up-regulated and angiogenesis suppressve genes were suppressed in collagen. Up-regulation of IL-1b and the angiogenesis-relating genes inside the porous scaffolds are the possibly important factors for controlling tissue regeneration. Three-condition experiment, host cells infiltrated in non coat (reference), collagen-coated, and PMB-coated scaffolds. Two-microarray condition experiments, collagen vs. non coat and PMB coat vs. non coat. Hybridization: 2 replicates. Scanning: 3 replicates. Biological experiments: once.

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RNAseq of subepithelial connective tissue grafts obtained at different location and depth in the human palate

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2023-12-13 | E-MTAB-13141 | biostudies-arrayexpress

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