BioProject

Background: Mesenchymal stem cells (MSCs) have been widely used in the treatment of various inflammatory diseases. More...

Background: Mesenchymal stem cells (MSCs) have been widely used in the treatment of various inflammatory diseases. The inadequate understanding of MSCs and its heterogeneity can impact the immune environment maybe the cause of the good outcomes of MSCs-based therapy cannot be always achieved. Recently, stem cells from human exfoliated deciduous teeth (SHED) showed a great potential in inflammatory and autoimmune diseases due to its unique immunomodulation properties. However, the cellular heterogeneity and the corresponding immunomodulation functions of SHED remains unclear. Methods: In this study, we applied single-cell RNA sequencing (scRNA-seq) to analyze and performed bioinformatic analysis to clarify the variations immunomodulation functions of SHED subpopulations in different differentiation state. After the integration of public available databases, we analyzed the transcriptome and compared the difference of immunomodulation functions of MSCs from different tissues. Results: SHED in low differentiation state (S7) exhibited the powerful ability to recruit multiple types of immune cells, whereas SHED in relatively high differentiation state (S1) may hold strong ability to secret many factors with paracrine signaling capacity. Compared with human bone marrow derived mesenchymal stem cells (hBMSCs) or human umbilical cord-derived mesenchymal stem cells (hUCMSCs), SHED is stronger in immunomodulatory property, especially in recruitment of Th17, Th22 and Treg cells. Conclusion: SHED was a heterogeneous MSCs population with different differentiation states and immunomodulatory functions. SHED may have some advantages in treatment of inflammatory and autoimmune diseases. Our works provides some theoretical foundation for the SHED-based therapy in clinical applications. Overall design: single cell RNA sequencing onmesenchymal stem cell from naturally exfoliated deciduous incisors from an 8-year-old child. Less...