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

ABSTRACT: 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.

ORGANISM(S): Mus musculus

PROVIDER: GSE52053 | GEO | 2014/01/23

SECONDARY ACCESSION(S): PRJNA226592

REPOSITORIES: GEO

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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.

2014-01-23 | E-GEOD-52053 | biostudies-arrayexpress

Mus musculus

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

| PRJNA226592 | ENA

Transcription profiling of human fibroblasts grown in petri dishes vs. attached to a tissue engineering scaffold sampled at 7 timepoints.

Project description:A goal of tissue engineering is to produce a scaffold material that will guide cells to differentiate and regenerate functional replacement tissue at the site of injury. Little is known about how cells respond on a molecular level to tissue engineering scaffold materials. In this work we used oligonucleotide microarrays to interrogate gene expression profiles associated with cell-biomaterial interactions. We seeded collagen-glycosaminoglycan meshes, a widely used tissue engineering scaffold material, with human IMR-90 fibroblasts and compared transcript levels with control cells grown on tissue culture polystyrene. Genes involved in cell signaling, extracellular matrix remodeling, inflammation, angiogenesis and hypoxia were all activated in cells on the collagen-GAG mesh. Understanding the impact of a scaffold on attached cells will facilitate the design of improved tissue engineering materials.

2007-10-26 | E-GEOD-6432 | biostudies-arrayexpress

Cellular Decoding of Simultaneous Cranial Mesenchyme and Osseous Architecture Reconstruction by Scaffolds

Project description:In this study, RNA sequencing was employed to investigate the differences in gene expression levels and patterns of cells recruited into suture-bony combined calvarial injury following the implatation of distinct types of commonly used calvarial scaffolds including gelatin methacryloyl hydrogel (GelMA), porous chitosan scaffold (CTS), and polylactic acid eletrospinning membrane (PLA).

2023-12-07 | GSE249260 | GEO

Cell population kinetics of collagen scaffolds in ex vivo oral wound repair

Project description:This study sought to provide a novel ex vivo model for analyzing healing kinetics and gene expression of primary human gingival fibroblasts (hGF) within collagen scaffolds. Sponge type and gel type scaffolds with and without platelet-derived growth factor-BB (PDGF) were assessed in an hGF containing matrix. Four samples were analyzed; gel w/ and w/o PDGF and scaffold w/ and w/o PDGF

2014-09-11 | E-GEOD-61314 | biostudies-arrayexpress

Functional Changes of HepG2 cells by VECELL 3-D Culture

Project description:VECELL 3-D insert is newly developed culture scaffold with collagen-coated ePTFE (expanded polytetrafluoroethylene) mesh. Effects of VECELL 3-D insert on the functionalities of HepG2, human hepatocellular carcinoma cell line, were analyzed.

2015-09-30 | GSE41270 | GEO

Transcription profiling of human fibroblast IMR-90 cells tissue culture polystyrene time series

Project description:IMR-90 Human Fibroblasts were seeded onto TCPS dishes. mRNA was isolated at 1, 2, 4, 8, 12, 24, 48 and 96 hours. This time course was used as a control for gene expression studies on collagen/chondroitin sulfate tissue engineering scaffold materials using the same cell line.

2008-06-12 | E-GEOD-410 | biostudies-arrayexpress

Project description:RNA sequencing of human umbilical cord mesenchymal stem cells on 3D collagen porous scaffolds

| PRJNA580461 | ENA

Expression data from Neural Progenitor cells cultured on 2D flat surfaces and in 3D scaffolds

Project description:A genomic expression comparison was done among neural progenitor cells cultured on 2D substrates, 3D porous polystyrene scaffolds, and as 3D neural spheres (in vivo surrogate), with the goal of assessing the feasibility of establishing the meaning of 3D and associated physiological relevance at the molecular level Neural progenitor cells were cultured on 2D surfaces, in 3D scaffolds and as 3D neural spheres. Chemical cues are controlled by coating. Only spacial properties of the culture systems were compared.

2009-12-22 | E-GEOD-13715 | biostudies-arrayexpress

Electrospun scaffold micro-architecture induces an activated transcriptional phenotype within tendon fibroblasts. Bulk RNA-seq data.

Project description:Biomaterial augmentation of surgically repaired rotator cuff tendon tears aims to improve the high failure rates (~40%) of traditional repairs. Biomaterials that can alter cellular phenotypes through the provision of microscale topographical cues are now under development. We aimed to systematically evaluate the effect of topographic architecture on the cellular phenotype of fibroblasts from healthy and diseased tendons. Electrospun polydioxanone scaffolds with fiber diameters ranging from 300 to 4000 nm, in either a highly aligned or random configuration, were produced. Healthy tendon fibroblasts cultured for 7 days on scaffolds with highly aligned fibers demonstrated a distinctive elongated morphology, whilst those cultured on randomly configured fibers demonstrated a flattened and spread morphology. The effect of scaffold micro-architecture on the transcriptome of both healthy and diseased tendon fibroblasts was assessed with bulk RNA-seq. Both healthy (n=3) and diseased tendon cells (n=3) demonstrated a similar transcriptional response to architectural variants. Gene set enrichment analysis revealed that large diameter (≥ 2000 nm) aligned scaffolds induced an upregulation of genes involved in cellular replication and a downregulation of genes defining inflammatory responses and cell adhesion. Similarly, PDPN and CD248, markers of inflammatory or ‘activated’ fibroblasts, were downregulated during culture of both healthy and diseased fibroblasts on aligned scaffolds with large (≥ 2000 nm) fiber diameters. In conclusion scaffold architectures resembling that of disordered type III collagen, typically present during the earlier phases of wound healing, resulted in tendon fibroblast activation. Conversely, scaffolds mimicking aligned diameter collagen I fibrils, present during tissue remodelling, did not activate tendon derived fibroblasts. This has implications for the design of scaffolds used during rotator cuff repair augmentation.

2021-12-05 | GSE190085 | GEO

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