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Microwell culture plates for easy and reproducible production of embryoid bodies and spheroids
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- Anti-Adherence Rinsing Solution
Rinsing solution for cultureware to prevent cell adhesion
Overview
Protocols and Documentation
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Resources and Publications
Educational Materials (13)
Publications (22)
CRISPR-engineered human lung organoids with a biomolecular condensate reporter enable mechanistic toxicity monitoring
Materials Today Bio 2026 Feb
Abstract
Understanding how chemical stress perturbs human lung physiology requires models that capture dynamic molecular responses in real time. Here, we established a CRISPR/Cas9-engineered human induced pluripotent stem cell (hiPSC)-derived lung organoid expressing endogenous G3BP1–mCherry, enabling live, non-destructive visualization of stress granule (SG) formation under toxicant exposure. The organoids recapitulated airway and alveolar epithelial diversity and displayed lamellar body-like ultrastructures, indicating advanced maturation. Time-lapse imaging revealed rapid and reversible SG dynamics across chemically distinct stressors, while cytotoxicity assays showed that these organoids are significantly more sensitive than conventional 2D or cancer-derived lung models. Importantly, SG dynamics were linked to exposure duration–dependent changes in epithelial barrier integrity, indicating that SG formation precedes overt epithelial injury and serves as an early indicator of toxicant-induced cellular stress. Integration with high-content screening enabled quantitative, image-based analysis of cellular stress phenotypes, greatly enhancing throughput and mechanistic insight, thereby provided next-generation New Approach Methodologies for lung toxicity assessment. Together, this hiPSC-derived lung organoid SG reporter platform links early molecular stress adaptation to tissue-level responses, offering a predictive and mechanistically informative framework for human-relevant lung toxicity evaluation.
Tailoring agarose fluid gels for use in suspension bath bioprinting and culture of spheroid-based bioinks
Biofabrication 2025 Oct
Abstract
Suspension bath bioprinting, whereby bioinks are extruded into a yield stress bath with rapid recovery from shearing, has enabled the printing of low viscosity bioinks into constructs with high geometric complexity. Previous studies have often relied upon external stabilisation of the suspension bath (e.g. collagen) in order to culture soft materials without loss of printed structure. Here, we report a systematic investigation of suspension bath properties that support the printing, fusion, and culture of spheroid-based bioinks without added stabilisation. Specifically, agarose fluid gels of varied polymer concentrations and dilutions were produced and characterised morphologically and rheologically. Juvenile bovine chondrocytes or mesenchymal stromal cells (MSCs) were formed into spheroids of ∼150 µ m in diameter and investigated within agarose suspension baths either for their fusion in hanging drop cultures or as jammed bioinks. MSC spheroids were also printed when mixed with hydrogel microparticles to demonstrate additional versatility to the approach. Suspension baths of lower polymer concentrations and increased dilution enabled faster spheroid fusion; however, the most heavily diluted suspension bath was unable to maintain print fidelity. Other formulations supported the printing, fusion, and culture of spheroid-based inks, either as simple lines or more complex patterns. These findings help to inform the design of suspension baths for bioprinting and culture.
Human pancreatic α-cell heterogeneity and trajectory inference analyses reveal SMOC1 as a β-cell dedifferentiation gene
Nature Communications 2025 Oct
Abstract
β-cell dysfunction and dedifferentiation towards an α-cell-like phenotype are hallmarks of type 2 diabetes. However, the cell subtypes involved in β-to-α-cell transition are unknown. Using single-cell and single-nucleus RNA-seq, RNA velocity, PAGA/cell trajectory inference, and gene commonality, we interrogated α-β-cell fate switching in human islets. We found five α-cell subclusters with distinct transcriptomes. PAGA analysis showed bifurcating cell trajectories in non-diabetic while unidirectional cell trajectories from β-to-α-cells in type 2 diabetes islets suggesting dedifferentiation towards α-cells. Ten genes comprised the common signature genes in trajectories towards α-cells. Among these, the α-cell gene SMOC1 was expressed in β-cells in type 2 diabetes. Enhanced SMOC1 expression in β-cells decreased insulin expression and secretion and increased β-cell dedifferentiation markers. Collectively, these studies reveal differences in α-β-cell trajectories in non-diabetes and type 2 diabetes human islets, identify signature genes for β-to-α-cell trajectories, and discover SMOC1 as an inducer of β-cell dysfunction and dedifferentiation. Subject terms: Cell signalling, Diabetes, Differentiation
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PRODUCTS ARE FOR RESEARCH USE ONLY AND NOT INTENDED FOR HUMAN OR ANIMAL DIAGNOSTIC OR THERAPEUTIC USES UNLESS OTHERWISE STATED. FOR ADDITIONAL INFORMATION ON QUALITY AT º£½ÇÆƽâ°æ, REFER TO WWW.º£½ÇÆƽâ°æ.COM/COMPLIANCE.
PRODUCTS ARE FOR RESEARCH USE ONLY AND NOT INTENDED FOR HUMAN OR ANIMAL DIAGNOSTIC OR THERAPEUTIC USES UNLESS OTHERWISE STATED. FOR ADDITIONAL INFORMATION ON QUALITY AT º£½ÇÆƽâ°æ, REFER TO WWW.º£½ÇÆƽâ°æ.COM/COMPLIANCE.
