Bone Regeneration with Dental Pulp Stem Cells in an Experimental Model.

Background/objectives: The therapeutic approach to bone mass loss and bone's limited self-regeneration is a major focus of research, emphasizing new biomaterials and cell therapy. Tissue bioengineering emerges as a potential alternative to conventional treatments. In this study, an experimental model of a critical bone lesion in rats was used to investigate bone regeneration by treating the defect with biomaterials Evolution and Gen-Os (OsteoBiol, Turín, Italy), with or without mesenchymal stromal cells from dental pulp (DP-MSCs).

Human bone marrow mesenchymal stem cell-driven LncRNA PTCSC3 upregulation within lung adenocarcinoma cells reduces erlotinib resistance by mitigating Wnt/β-Catenin pathway.

lncRNA PTCSC3, which stands for Papillary Thyroid Carcinoma Susceptibility Candidate 3, has been found to play a role in various cellular processes, including cell proliferation, apoptosis, and migration, acting as either an oncogene or a tumor suppressor depending on the context. This study investigates the influence of lncRNA PTCSC3, derived from human bone marrow mesenchymal stem cell (hBMSC), on the efficacy of erlotinib (Er)-resistant lung adenocarcinoma (LUAD) cells and elucidates underlying mechanism. The hBMSCs and LUAD (PC9 and A549) cells were employed to establish an Er-resistant LUAD cell model.

Influences of umbilical cord mesenchymal stem cells and their exosomes on tumor cell phenotypes.

Mesenchymal stem cells (MSCs), extensively utilized in contemporary stem cell research, hold significant potential in the treatment of neoplastic diseases. This study aims to investigate the influences of umbilical cord mesenchymal stem cells (UMSCs) and their exosomes (UMSCs-exos) on tumor cell phenotypes. UMSCs and UMSCs-exos, isolated from human umbilical cord tissue, were validated for isolation efficiency and differentiation capacity using flow cytometry, electron microscopy, and cell staining.