Single metal-organic framework–embedded nanopit arrays: A new way to control neural stem cell differentiation

Autor: Yeon-Woo Cho, Seohyeon Jee, Intan Rosalina Suhito, Jeong-Hyeon Lee, Chun Gwon Park, Kyung Min Choi, Tae-Hyung Kim
Rok vydání: 2022
Předmět:
Zdroj: Science Advances. 8
ISSN: 2375-2548
Popis: Stable and continuous supply of essential biomolecules is critical to mimic in vivo microenvironments wherein spontaneous generation of various cell types occurs. Here, we report a new platform that enables highly efficient neuronal cell generation of neural stem cells using single metal-organic framework (MOF) nanoparticle–embedded nanopit arrays (SMENA). By optimizing the physical parameters of homogeneous periodic nanopatterns, each nanopit can confine single nMOFs (UiO-67) that are specifically designed for long-term storage and release of retinoic acid (RA). The SMENA platform successfully inhibited physical interaction with cells, which contributed to remarkable stability of the nMOF (RA⊂UiO-67) structure without inducing nanoparticle-mediated toxicity issues. Owing to the continuous and long-term supply of RA, the neural stem cells showed enhanced mRNA expressions of various neurogenesis-related activities. The developed SMENA platform can be applied to other stem cell sources and differentiation lineages and is therefore useful for various stem cell–based regenerative therapies.
Databáze: OpenAIRE