Congratulations to Dr. Libo Zhou, Dr. Hongchuan Yu, Dr. Liisa Kuhn, Dr. Wei Guo, Dr. Yupeng Chen and Anne on their newest publication on the Journal of Biomedical Materials Research Part A!!!! This is exciting news! They have been working hard on this paper and it finally came to fruition! Thank you, everyone, for the support as well. We will continue to work hard on our research and publish more papers in journals!

Title: Self-assembled Biomimetic Nano-Matrix for Stem Cell Anchorage
DOI: 10.1002/jbm.a.36875

Abstract

“Mesenchymal stem cells (MSCs) have been widely applied in biomedicine due to their ability to differentiate into many different cell types and their ability to synthesize a broad spectrum of growth factors and cytokines that directly and indirectly influence other cells in their vicinity. To guide MSC infiltration to a bone fracture site, we developed a novel self-assembled Nano-Matrix which can be used as an injectable scaffold to repair bone fractures. The Nano-Matrix is formed by Janus base nanotubes (JBNTs) and fibronectin (FN). JBNTs are nucleobase-derived nanotubes mimicking collagen fibers, and FN is one of the cell adhesive glycoproteins which is responsible for cell-extracellular matrix interactions and guides stem cell migration and differentiation to desired cells types. Here, we demonstrated the successful fabrication and characterization of the JBNT/FN Nano-Matrix as well as its excellent bioactivity that encouraged human MSC migration and adhesion. This work lays a solid foundation for using the Nano-Matrix as an injectable approach to improve MSC retention and function during bone fracture healing.”

Schematic illustration of the hierarchical self-assembly of JBNTs with a lysine side chain.

Fluorescence images of (A) the hMSCs and (B) the hMSC incubated with the JBNT/FN Nano-Matrix. Scale bar: 100 mm