Expression profiling of human umbilical cord mesenchymal stem cell line hMSCs, human esophageal carcinoma cell line EC9706 and their hybrids EMFs.
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ABSTRACT:
ORGANISM(S): Homo sapiens
SUBMITTER: Antican Wang
PROVIDER: E-GEOD-26765 | biostudies-arrayexpress |
REPOSITORIES: biostudies-arrayexpress
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Project description:Four human mesenchymal stem cells (hMSC) clones (MSC-1, MSC-2, MSC-3, MSC-4) and three different glioblastoma multiformae (GBM) cell lines (U87-MG, U251, U373) were used to study their mutual paracrine interactions in the indirect co-cultures compared to their monocultures, which were grown under the same experimental conditions. The effects on cell growth, proliferation and invasion in matrigel were quantified. Further on, bioinformatic tools were used to relate these results to the data obtained from cytokine macroarrays and DNA microarrays that revealed proteins and genes significantly involved in the interaction. We showed that hMSC are responsible for the impairment of GBM cell invasion and growth, possibly via induction of their senescence. On the other hand, U87-MG cells even more strongly inversely affected some of these characteristics in hMSCs. We found several chemokines that may account for changed co-cultured cells’ phenotype, affecting genes associated with proliferation and senescence. CCL2/MCP-1 was collectively identified as the most significantly regulated chemokine during hMSC and U87-MG paracrine signalling. Its role in U87-MG cell invasion was also functionally confirmed. Microarray data deposited here contain gene expression data from three biological replicates of monocultures and indirect co-cultures of MSC-4 and U87-MG cells, representing 12 microarrays. Three biological replicates of four cell set-ups were performed: MSC-4 monoculture, U87-MG monoculture, MSC-4 co-cultured with U87-MG (in Boyden chambers) and U87-MG co-cultured with MSC-4 (in Boyden chambers).
2011-12-20 | E-GEOD-26283 | biostudies-arrayexpress
Project description:Human aging is associated with loss of function and regenerative capacity. Human bone marrow derived mesenchymal stromal cells (hMSCs) are involved in tissue regeneration, evidenced by their capacity to differentiate into several lineages and therefore are considered the gold standard for cell-based regeneration therapy. Tissue maintenance and regeneration is dependent on stem cells and declines with age and aging is thought to influence therapeutic efficacy, therefore, more insight in the process of aging of hMSCs is of high interest. We, therefore, hypothesized that hMSCs might reflect signs of aging. In order to find markers for donor age, early passage hMSCs were isolated from bone marrow of 61 donors, with ages varying from 17-84, and clinical parameters, in vitro characteristics and microarray analysis were assessed. Although clinical parameters and in vitro performance did not yield reliable markers for aging since large donor variations were present, genome-wide microarray analysis resulted in a considerable list of genes correlating with human age. By comparing the transcriptional profile of aging in human with the one from rat, we discovered follistatin as a common marker for aging in both species. The gene signature presented here could be a useful tool for drug testing to rejuvenate hMSCs or for the selection of more potent, hMSCs for cell-based therapy. We used microaray gene expression profiling to find expressed genes that correlated with the donor age of bone-marrow derived mesenchymal stromal cells (hMSCs) Human mesenchymal stem cells (hMSC) were biopsied from bone marrow from 61 different donors aging from 17 - 89 years old. The genome wide expression profiles was assessed using Affymetrix microarrays. The expression of genes was correlated with the age of the donors.
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