PURPOSE Mesenchymal stem cells (MSC) are self-renewing, multipotent cells that are present in many adult tissues, including bone marrow, trabecular bone, adipose, and muscle. The presence of such cells of mesenchymal origin and their role during the wound healing of ocular injuries are currently being explored by many studies worldwide. In this study, we aimed to report the presence of mesenchy...

Exosomes are nanosized membrane-bound extracellular vesicles with the capacity to modify functions and behaviors of recipient cells via transferring unique biological information. Mounting evidence suggests that under developmental conditions, mesenchymal cell-derived exosomes capable mediating intercellular communication between epithelium mesenchyme during organogenesis salivary gland, tooth,...

conclusions our results suggested that cb-nk cells progenitors could proliferate and differentiate on feeder layer of amnion membrane mscs in combination with specific cytokines to produce nk cells for immunotherapy. results combination of cytokines and msc layer yielded significant fold expansion in comparison with cytokines without feeder conditions (day 7: 5.2 ± 1.12 and 2 ± 0.78, respective...

Recovery of skin function remains a significant clinical challenge for deep burns owing to the severe scar formation and poor appendage regeneration, stem cell therapy has shown great potential injured tissue regeneration. Here, cell-free system burn was explored using mesenchymal paracrine proteins (MSC-PP) polyethylene glycol (PEG) temperature-sensitive hydrogels. A three-dimensional (3D) dyn...

Background Mesenchymal stem cells (MSC) are adult stem cells present in bone marrow (BM), fat and in many other tissues. MSC have strong immunosuppressive qualities in vitro. The immunosuppression seems to work both by paracrine action and cell-cell contact. MSC inhibit NKcells, B-cells, dendritic cells, Th1-cells and activate regulatory T-cells. The presence of floating single MSC in human syn...

The bone marrow stroma is a heterogeneous mixture of cells and extracellular matrix which provide both physical support and growth factors, as well as cytokines or chemokines for the regulation of hematopoiesis. These cells come from an immature progenitor cell termed the mesenchymal stem cell (MSC). Under specific in vitro conditions, MSC can give rise to bone, cartilage, adipose tissue or ske...

objective: evaluating the effects of p-benzoquinone and hydroquinone on the runx2 expression and osteoblastic differentiation of human marrow derived mesenchymal stem cells (mscs). materials and methods: bone marrow mscs obtained by cultivating marrow mononuclear cells, were exposed to 10μm of either p-benzoquinone or hydroquinone. following chemical treatment, runx2 gene expression was assess...

Glioblastoma is the most common and aggressive primary brain cancer. Recent isolation and characterization of brain tumor-initiating cells supports the concept that transformed neural stem cells may seed glioblastoma. We previously identified a wide array of mesenchymal tissue transcripts overexpressed in a broad set of primary glioblastoma (de novo) tumors but not in secondary glioblastoma (de...

ex vivo expansion of human umbilical cord blood cells (hucbc) is explored by several investigators to enhance the repopulating potential of hucbc. the proliferation and expansion of human hematopoietic stem cells (hsc) in ex vivo culture was examined with the goal of generating a suitable clinical protocol for expanding hsc for patient transplantation. using primary human mesenchymal stem cells...

Extracellular Vesicles, including exosomes, are small membrane fragments released from many cell types, like Mesenchymal Stem Cells (MSCs). They were recognized as a mechanism of intercellular communication. They can transfer proteins, lipids and nucleic acids to other cells. Thus, they have many physiological (angiogenesis, coagulation and tissue repair, etc.) and pathological (e.g. in autoimm...