Bioprinted 3D Outer Retina Barrier Uncovers RPE-dependent Choroidal Phenotype in Advanced Macular Degeneration
Ontology highlight
ABSTRACT:
ORGANISM(S): Homo sapiens
PROVIDER: GSE214928 | GEO | 2022/10/21
REPOSITORIES: GEO
Similar Datasets
Project description:We developed bioprinted tumor organoids linked to real-time growth pattern quantitation via high-speed live cell interferometry (HSLCI). We demonstrate that bioprinting gives rise to 3D organoid structures that preserve histology and gene expression.
2022-11-26 | GSE218693 | GEO
Project description:Cellular extracellular matrix (ECM) and spatial heterogeneity of tumor microenvironments (TME) regulate disease progression and treatment efficacy. Developing in vitro models that recapitulate the TME promises to accelerate studies of tumor biology and identify new targets for therapy. Here, we employed extrusion-based, multi-nozzle three-dimensional (3D) bioprinting to spatially pattern triple-negative MDA-MB-231 breast cancer cells, endothelial cells, and human mammary cancer-associated fibroblasts with biomimetic ECM inks. Bioprinted models captured key features of the spatial architecture of human breast tumors, including varying-sized dense regions of cancer cells and surrounding microvessel-rich stroma. Angiogenesis and ECM stiffening occurred in the stromal area but not the cancer cell rich regions, mimicking pathological changes in patient samples. Transcriptomic analyses revealed upregulation of angiogenesis-related and ECM remodeling-related signatures in the stroma region and identified potential ligand-receptor mediators of these processes. Breast cancer cells in distinct parts of the bioprinted TME showed differing sensitivities to chemotherapy, highlighting environmentally mediated drug resistance. In summary, our 3D bioprinted tumor model will act as a platform to discover integrated functions of the TME in cancer biology and therapy.
2024-06-13 | GSE269415 | GEO
Project description:We compared kidney organoids generated manually ('Man') to those generated by bioprinting single cell deposition ('R0') and thin bioprinted lines ('R40').
2020-09-01 | GSE152014 | GEO
Project description:Simultaneous differentiation of human induced pluripotent stem cells (hiPSCs) into divergent cell types offers a pathway to achieving tailorable cellular complexity, patterned architecture, and function in engineered human organoids and tissues. Recent transcription factor (TF) overexpression protocols typically produce a single cell type of interest rather than the multitude of cell types and structural organization found in native human tissues. Here, we report an orthogonal induced differentiation platform, wherein pluripotent cells are simultaneously co-differentiated into distinct cell types to generate organoids and bioprinted tissues with controlled composition and organization. To demonstrate this platform, we differentiated endothelial cells and neurons from hiPSCs in a one-pot system containing either neural or endothelial stem cell-specifying media. By aggregating inducible-TF and wild type hiPSCs into pooled and multicore-shell embryoid bodies, we produced vascularized and patterned cortical organoids within days. Using multimaterial 3D bioprinting, we patterned 3D neural tissues from densely cellular, matrix-free stem cell inks that underwent orthogonal induced differentiation to generate distinct layered regions composed of neural stem cells, endothelium, and neurons, respectively. Given the high proliferative capacity and patient-specificity of hiPSCs, our platform provides a facile route for programming cells and multicellular tissues for drug screening and therapeutic applications.
2022-01-11 | GSE193148 | GEO
Project description:Simultaneous differentiation of human induced pluripotent stem cells (hiPSCs) into divergent cell types offers a pathway to achieving tailorable cellular complexity, patterned architecture, and function in engineered human organoids and tissues. Recent transcription factor (TF) overexpression protocols typically produce a single cell type of interest rather than the multitude of cell types and structural organization found in native human tissues. Here, we report an orthogonal induced differentiation platform, wherein pluripotent cells are simultaneously co-differentiated into distinct cell types to generate organoids and bioprinted tissues with controlled composition and organization. To demonstrate this platform, we differentiated endothelial cells and neurons from hiPSCs in a one-pot system containing either neural or endothelial stem cell-specifying media. By aggregating inducible-TF and wild type hiPSCs into pooled and multicore-shell embryoid bodies, we produced vascularized and patterned cortical organoids within days. Using multimaterial 3D bioprinting, we patterned 3D neural tissues from densely cellular, matrix-free stem cell inks that underwent orthogonal induced differentiation to generate distinct layered regions composed of neural stem cells, endothelium, and neurons, respectively. Given the high proliferative capacity and patient-specificity of hiPSCs, our platform provides a facile route for programming cells and multicellular tissues for drug screening and therapeutic applications.
2022-01-11 | GSE193102 | GEO
Project description:Pterygium is an ocular surface disorder with high prevalence that can lead to vision impairment. As a pathological outgrowth of conjunctiva, pterygium involves neovascularization and chronic inflammation, but its pathogenesis remains largely unknown. Over the last decade, various types of disease models have been built to study pterygium. Here, we developed a 3D multicellular in vitro pterygium model using the digital light processing (DLP)-based 3D bioprinting of human conjunctival stem cells (hCjSCs). A novel feeder-free culture system was adopted and efficiently expanded the primary hCjSCs with homogeneity, stemness and differentiation potency. The DLP-based 3D bioprinting was able to fabricate hydrogel scaffolds that support the viability and biological integrity of the encapsulated hCjSCs. The bioprinted 3D pterygium model was fabricated with hCjSCs, immune cells and vascular cells to recapitulate the disease microenvironment. Transcriptomic analysis using RNA sequencing (RNA-seq) identified a distinct profile correlated to inflammation response, angiogenesis, and epithelial mesenchymal transition in the bioprinted 3D pterygium model. In addition, the pterygium signatures and disease relevance of the bioprinted model were validated with the public RNA-seq data from patient-derived pterygium tissues. By integrating the stem cell technology and 3D bioprinting, this is the first reported 3D in vitro disease model for pterygium that can be utilized by future studies towards the personalized medicine and the drug screening.
2022-06-01 | GSE180343 | GEO
Project description:Bioprinting is an emerging additive manufacturing approach to the fabrication of patient-specific, implantable three-dimensional (3D) constructs for regenerative medicine. However, developing cell-compatible bioinks with high printability, structural stability, biodegradability, and bioactive characteristics is still a primary challenge for translating 3D bioprinting technology to preclinical and clinal models. To overcome this challenge, we develop a nanoengineered ionic covalent entanglement (NICE) bioink formulation for 3D bone bioprinting. The NICE bioinks allow precise control over printability, mechanical properties, and degradation characteristics, enabling custom 3D fabrication of mechanically resilient, cellularized structures. We demonstrate cell- induced remodeling of 3D bioprinted scaffolds over 60 days, demonstrating deposition of nascent extracellular matrix proteins. Interestingly, the bioprinted constructs induce endochondral differentiation of encapsulated human mesenchymal stem cells (hMSCs) in absence of osteoinducing agents such as dexamethasone or bone morphogenic protein-2 (BMP-2). Using next-generation transcriptome sequencing (RNA-seq) technology, we establish the role of nanosilicates, a bioactive component of NICE bioink, to stimulate endochondral differentiation at the transcriptome level. Overall, the osteoinductive bioink has the ability to induce formation of osteo-related mineralized extracellular matrix by encapsulatedhMSCsingrowthfactor-freeconditions.Furthermore,wedemonstratedtheabilityofNICEbioinktofabricatepatient-specific, implantable 3D scaffolds for repair of craniomaxillofacial bone defects. We envision transformation of this NICE bioink technology toward a realistic clinical process for 3D bioprinting patient-specific bone tissue for regenerative medicine.
2020-03-04 | GSE146309 | GEO
Project description:Deciphering breast cancer treatment resistance remains hindered by the lack of models that can successfully capture the four-dimensional dynamics of the tumor microenvironment. Here, we show that microextrusion bioprinting can reproducibly produce distinct cancer and stromal compartments integrating cells relevant to human pathology. Our findings unveil the functional maturation of this millimeter-sized model, showcasing the development of a hypoxic cancer core and an increased surface proliferation. Maturation was also driven by the presence of cancer-associated fibroblasts (CAF) that induced elevated microvascular-like structures complexity. Such modulation was concomitant to extracellular matrix remodeling, with high levels of collagen and matricellular proteins deposition by CAF, simultaneously increasing tumor stiffness and recapitulating breast cancer fibrotic development. Importantly, our bioprinted model faithfully reproduced response to treatment, further modulated by CAF. Notably, CAF played a protective role for cancer cells against radiotherapy, facilitating increased paracrine communications. This model holds promise as a platform to evaluate microenvironment targeting drugs in a human pathology relevant context, that could lead to significant improvements for patient care.
2024-12-17 | PXD050584 | Pride
Project description:The therapeutic regimens of adjuvant and neoadjuvant chemotherapy for colorectal cancer (CRC) remain largely relied on clinical experience, and thus preclinical models are needed to guide individualized medicine. The investigators are going to establish 3D bioprinted CRC models and organoids from surgically resected tumor tissues of CRC patients with or without liver metastases. In vitro 3D models and organoids will be treated with the same chemotherapy drugs with the corresponding patients from whom the models are derived. The sensitivity of chemotherapy drugs will be tested in these two types of in vitro models, and the actual response to chemotherapy in patients will be evaluated. The predictive ability of 3D models for chemotherapy sensitivity in CRC patients will be compared with that of the organoids. This observational study will validate the potential value of 3D bioprinted tumor models in predicting the response to chemotherapy in CRC.
| 2367475 | ecrin-mdr-crc
Project description:We aimed to evaluated the effect of the cells growth conditions on the genetic profile of the cells. More specifically, we wanted to evaluate whether our 3D cancer model better reflects the in vivo scenario than 2D culture methods . Therfore, we performed RNA-seq of glioblastoma tumors grown in mice and compared it to a "penta-culture" comprised of GL261 murine GB cells, primary astrocytes, microglia, pericytes, and endothelial cells, grown in 2D or in 3D-bioink
2021-08-18 | GSE178371 | GEO