Small RNA Seq profiling of tissue specific MSCs derived EVs
Ontology highlight
ABSTRACT:
ORGANISM(S): Homo sapiens
PROVIDER: GSE296110 | GEO | 2026/05/01
REPOSITORIES: GEO
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Project description:Mesenchymal stromal cells (MSCs) are multipotent stem cells with potent immunosuppressive and trophic support functions. Although bone marrow is considered the golden standard to isolate classical MSCs (BM-MSC), MSC-like cells are currently also derived from other, more easily accessible extra-embryonic tissues such as the umbilical cord. In this study we compared the gene expression profile of human Wharton's jelly explant-derived MSC cultures with two adult MSC populations derived from bone marrow, namely BM-MSC and multipotent adult progenitor cells (MAPC). Here we demonstrate, by using genome wide gene expression analysis, that WJ-MSCs intrinsically have a differential gene expression profile compared to the adult MSCs. Gene ontology analysis revealed an increased expression of genes associated with cell-adhesion, proliferation, and immune system functioning. Furthermore, in comparison to adult MSC, stem cells from the Wharton’s jelly highly express genes involved in neurotrophic support (e.g. LIF, BDNF, NTF3). Such enhanced signatures make WJ-MSC an attractive candidate for cell-based therapy in neurodegenerative and immune-mediated CNS disorders such as multiple sclerosis or amyotrophic lateral sclerosis.
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Project description:A non-controversial and non-invasive source of adult stem cells (ASCs), particularly hematopoietic stem cells (HSCs) and mesenchymal stem cells (MSCs) is human umbilical cord blood. HSCs derived from cord blood have been used for treating leukemia and other blood disorders for the last 30 years. While the presence of MSCs in cord blood is limited, umbilical cord has been found to be promising source of MSCs. However, the cord is an anatomically complex organ and potential isolation of MSCs from its various parts has not been fully explored. In this study we dissected the cord into cord placenta junction (CPJ), cord tissue (CT), and Wharton’s jelly (WJ) and isolated stem cells. These cells exhibited fibroid morphology, expressed MSC-specific markers including CD90, CD73, CD105, CD44, and CD29 and differentiated into chondrogenic, osteogenic, and adipogenic lineages. In addition, they all expressed pluripotency genes, OCT4, Nanog, Sox2 and KLF4 but expression of these markers was highest in CPJ followed by WJ and CT. CPJ-MSCs also had higher rate of proliferation compared to WJ- and CT-MSCs. Proliferation of WJ- and CT-MSCs was markedly decreased upon passaging with concomitant decrease in expression of MSC and pluripotency markers. Based on their greater self-renewal potential, CPJ-MSCs could be superior to WJ- and CT-MSCs for the applications in therapeutic and regenerative medicine.
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