The ever-stricter regulations on animal experiments in the field of cosmetic testing have prompted a surge in skin-related research with a special focus on recapitulation of the in vivo skin structure in vitro. In vitro human skin models are seen as an important tool for skin research, which in recent years attracted a lot of attention and effort, with researchers moving from the simplest 2-layered models (dermis with epidermis) to models that incorporate other vital skin structures such as hypodermis, vascular structures, and skin appendages. In this study, we designed a microfluidic device with a reverse flange-shaped anchor that allows culturing of an in vitro skin model in a conventional 6-well plate and assessing its barrier function without transferring the skin model to another device or using additional contraptions. Perfusion of the skin model through vascular-like channels improved the morphogenesis of the epidermis compared with skin models cultured under static conditions. This also allowed us to assess the percutaneous penetration of the tested caffeine permeation and vascular absorption, which is one of the key metrics for systemic drug exposure evaluation.
CITATION STYLE
Mikimoto, D., Mori, M., Toyoda, A., Yo, K., Oda, H., & Takeuchi, S. (2024). Culture insert device with perfusable microchannels enhances in vitro skin model development and barrier function assessment. Biofabrication, 16(3). https://doi.org/10.1088/1758-5090/ad3a15
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