The hypothalamus is the central control center for appetite and energy balance, integrating hormonal signals that regulate food intake and metabolism. Although human pluripotent stem cell (hPSC)-derived models provide valuable tools for studying these processes, reproducing the cellular complexity and regional organization of the human hypothalamus in vitro remains a significant challenge. More physiologically relevant human models are therefore needed to better understand hypothalamic development and the cellular mechanisms underlying metabolic disease.

Human renal proximal tubular epithelial cells (RPTECs) are widely used as in vitro models for studying kidney biology and supporting the development of new therapeutics. However, conventional porous culture membranes, such as polycarbonate Transwells, do not accurately reproduce the structural and biochemical properties of the native basement membrane. As a result, renal epithelial cells often fail to fully differentiate and function, limiting the physiological relevance of these in vitro models.

During the development of the nervous system, growing axons rely on specialized structures known as growth cones to navigate toward their correct targets and establish functional neural circuits. Growth cones continuously respond to extracellular guidance cues that direct their movement, including both soluble growth factors and components of the extracellular matrix. One mechanism underlying this process is local translation, where messenger RNAs (mRNAs) are rapidly translated into proteins directly within the growth cone, enabling precise and localized responses to environmental signals. While neurotrophic factors […]

The spinal cord is composed of both gray and white matter, with white matter containing axonal tracts responsible for transmitting sensory and motor signals throughout the body. Proper white matter development is essential for establishing functioning neural circuits, yet the extracellular matrix mechanisms regulating this process remain incompletely understood. Astrocytes play a fundamental role in supporting neurons and coordinating white matter development, yet the molecular signals directing their maturation remain poorly understood.

Macrophages are essential immune cells that play central roles in maintaining tissue health and coordinating inflammatory responses. Because of these diverse functions, they become valuable models for studying human disease and evaluating new therapeutic approaches. Human pluripotent stem cell (hPSC)-derived macrophages provide a renewable and more consistent alternative to primary cells, making them well suited for large-scale research applications. Despite these advantages, many differentiation protocols still rely on animal-derived culture components, introducing variability that can limit standardization and reproducibility.

Human pluripotent stem cell (hPSC)-derived pancreatic islets show significant promise for cell replacement therapies in type 1 diabetes, but the current differentiation protocols often produce heterogeneous cultures containing immature endocrine cells and unwanted non-endocrine populations. Achieving reproducible differentiation across multiple stem cell lines while maintaining endocrine purity remains a key challenge in the development of clinically relevant stem cell therapies.  

This study highlights the importance of chemically defined extracellular matrix environments for translating stem cell-derived tissue engineering technologies from academic research toward clinical applications.

This study demonstrates that combining a fully defined, animal origin-free culture medium with a physiologically relevant extracellular matrix is key to generating clinically compliant RPE cells.

By using a Biolaminin 111–functionalized Biosilk scaffold, the system produces organoids with stable cell-type composition, reliable dopaminergic neuron differentiation, increased functionality, and uniform maturation across the whole 3D tissue, including the core.

Biosilk and Biolaminin 521 enabled centimeter-scale, channel-permeated 3D cultures that differentiated uniformly into neuroectoderm followed by further differentiation into neural subtypes. The neural progenitors retained self-organization, forming ventricle-like zones, and calcium imaging demonstrated spontaneous activity, indicative of functional neuronal network formation.