by Keyword: Extracellular matrix-derived hydrogels
Garreta, Elena, Moya-Rull, Daniel, Marco, Andres, Amato, Gaia, Ullate-Agote, Asier, Tarantino, Carolina, Gallo, Maria, Esporrin-Ubieto, David, Centeno, Alberto, Vilas-Zornoza, Amaia, Mestre, Rafael, Kalil, Maria, Gorronogoitia, Izar, Zaldua, Ane Miren, Sanchez, Samuel, Reyes, Laura Izquierdo, Fernandez-Santos, Maria Eugenia, Prosper, Felipe, Montserrat, Nuria, (2024). Natural Hydrogels Support Kidney Organoid Generation and Promote In Vitro Angiogenesis Advanced Materials , 2400306 
To date, strategies aiming to modulate cell to extracellular matrix (ECM) interactions during organoid derivation remain largely unexplored. Here renal decellularized ECM (dECM) hydrogels are fabricated from porcine and human renal cortex as biomaterials to enrich cell-to-ECM crosstalk during the onset of kidney organoid differentiation from human pluripotent stem cells (hPSCs). Renal dECM-derived hydrogels are used in combination with hPSC-derived renal progenitor cells to define new approaches for 2D and 3D kidney organoid differentiation, demonstrating that in the presence of these biomaterials the resulting kidney organoids exhibit renal differentiation features and the formation of an endogenous vascular component. Based on these observations, a new method to produce kidney organoids with vascular-like structures is achieved through the assembly of hPSC-derived endothelial-like organoids with kidney organoids in 3D. Major readouts of kidney differentiation and renal cell morphology are assessed exploiting these culture platforms as new models of nephrogenesis. Overall, this work shows that exploiting cell-to-ECM interactions during the onset of kidney differentiation from hPSCs facilitates and optimizes current approaches for kidney organoid derivation thereby increasing the utility of these unique cell culture platforms for personalized medicine. Natural hydrogels derived from decellularized porcine or human kidney tissues are used to generate kidney organoids from human pluripotent stem cells, resulting in the enrichment of organoids' endogenous vascular component and improved renal differentiation. Exploiting the autonomous capacity of kidney organoids to exhibit endogenous vascularization in combination with these biomaterials, a novel approach is established to generate endothelial-kidney assembloids showing vascular-like structures. image
JTD Keywords: Assembloids, Extracellular matrix-derived hydrogels, Extracellular-matrix, Human pluripotent stem cells, Kidney organoids, Pluripotent stem-cells, Tissu, Vascularizatio
