Gene expression data of human mesenchymal stromal cells, fibroblasts and hematopoietic progenitors
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ABSTRACT:
ORGANISM(S): Homo sapiens
PROVIDER: GSE72332 | GEO | 2016/10/21
SECONDARY ACCESSION(S): PRJNA293763
REPOSITORIES: GEO
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Project description:The data presented is intended to analyse the changes in the expression profiles of human MSCs (Mesenchymal Stromal/Stem Cells) associated to different tissue specific stimulus. Human BM-, PL-, and AD- MSCs, and skin fibroblasts from healthy independent donors were isolated and expanded in vitro. Hematopoietic progenitors and stem cells (HSCs) were isolated applying CD34+ immunomagnetic selection.
2016-10-21 | E-GEOD-72332 | biostudies-arrayexpress
Project description:Mesenchymal stromal cells (MSCs) have been introduced as promising cell source for regenerative medicine. Besides their multilineage differentiation capacity, MSCs release a wide spectrum of bioactive factors. This secretome holds immunomodulatory and regenerative capacities. In intervertebral disc (IVD) cells, application of MSC secretome has been shown to decrease the apoptosis rate, induce proliferation and promote production of extracellular matrix (ECM). For clinical translation of secretome-based treatment, characterization of the secretome composition is needed to better understand the induced biological processes and identify potentially effective secretomes. Methods: This study aimed to investigate the proteome released by bone marrow derived MSCs following exposure to a healthy, traumatic, or degenerative human IVD environment by mass spectroscopy and quantitative immunoassay analyses. Exposure of MSCs to the proinflammatory stimulus interleukin 1β (IL-1b) was used as control.
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Project description:Eltrombopag (EP) is a small molecule that acts on hematopoietic cells and megakaryocytes to stimulate the hematopoiesis. Mesenchymal stem/stromal cells (MSCs) are key hematopoietic niche regulators. In the current work we aimed to assess if EP exert any effect on MSCs function, especially on their hematopoietic-supporting ability, and if so, what are the changes (including transcriptomic) induced in MSCs after EP treatment. For this purpose, MSCs were isolated from 12 healthy donors and treated with 15 uM and 50 uM of EP for 24 hours. The toxicity of the drug on MSCs and their differentiation ability were analyzed, as well as the transcriptomic profile, ROS and DNA damage and finally the changes induced in the clonogenic capacity of HSC. We observed that EP acts on MSCs decreasing their adipogenic differentiation, increasing the expression of genes involved in hypoxia and other pathways and enhancing their ability to support hematopoiesis. We used high density oligo microarrays (Affymetrix Clariom_S_Human) to obtain the global programme of gene expression underlying the effect of the Eltrombopag (EP) and Thrombopoietin (TPO) in human MSCs (derived from bone marrow) and identify the genes activity.
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Project description:Patients receiving radiation therapy are still at risk for side effects due to off-target radiation damage of normal tissues The number of cancer patients is expected to increase from 14.1 million around the world in 2012 to 19.3 million in 2025. Up to ten percent will develop late severe gastrointestinal complications (i.e. Pelvic Radiation Disease - PRD). Symptoms are proctopathy (5-20%) and radiation-induced cystitis (3,5%) that affect quality of life. The treatment of PRD is limited to managing the symptoms; new alternatives should be proposed.
Clinical trials using MSCs to treat hemorrhagic cystitis, proctopathy have demonstrated the feasibility to used MSCs in these pathologies :
* MSCs successfully repair hemorrhagic cystitis, and perforated colon in patients with hemorrhagic cystitis, perforated colon and peritonitis.
* Six clinical trials are currently ongoing for proctopathy, 3 are phase III. Results suggest an inhibition of chronic inflammation and fistulization and interruption of hemorrhagic syndromes.
* Clinical trials to evaluate the efficacy of MSCs to treat hemorrhagic cystitis is in progress.
* A decrease in pain after the injection of MSCs was observed in patients treated by radiotherapy for breast cancer, radiation burns, and radiotherapy over-dosage.
* Four patients, were treated with MSCs after receiving overdose pelvic irradiation for prostate cancer. A decrease in pain (EN score), bleeding and diarrhea was observed.
MSCs will represent a promising alternative strategy in the treatment of severe enteritis, rectitis and cystitis after radiotherapy, and may avoid surgical treatment and may diminish the adverse effect of PRD in terms of chronicity, morbidity, mortality and health costs.
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Project description:Multipotent Mesenchymal Stromal Cells (MSCs) are multipotent adult cells that can be isolated from different tissues. The current hypothesis supports that the main MSCs action mechanism relates to its paracrine activity, creating a microenvironment with trophic signals. However, preclinical studies with different sources of MSCs and different animal models have shown conflicting results. Therefore, the evaluation of these cells secretome content is of great interest. Here we analyzed the secreted proteins of MSCs, isolated from 3 different sources (adipose tissue, uterine tubes and skeletal muscle), obtained from 5 different donors. Following MSCs characterization, proteins secreted in serum-free conditions (conditioned media, CM) were analyzed by mass-spectrometry-based quantitative proteomics.
2016-12-09 | PXD003978 | Pride
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Project description:Human mesenchymal stromal cells (MSCs) were treated with TLR3 ligand. LS-MS/MS analysis was performed to reveal changes in proteins related to the immunosuppressive properties of MSCs and to better understand the mechanisms underlying the activation of these properties.
2023-11-09 | PXD044795 | Pride
Project description:Background: Advanced Renal cell carcinoma (RCC) is therapeutically challenging. RCC progression is facilitated by mesenchymal stem/stromal cells (MSCs) that exert remarkable tumor tropism. The specific mechanisms mediating MSCs’ migration to RCC remain unknown. Here, we comprehensively analyzed RCC secretome to identify MSCs attractants. Methods: Conditioned media (CM) were collected from five RCC-derived cell lines (Caki-1, 786-O, A498, KIJ265T, KIJ308T) and non-tumorous control cell line (RPTEC/TERT1) and analyzed using cytokine arrays targeting 274 cytokines in addition to global CM proteomics. MSCs were isolated from bone marrow of patients undergoing standard orthopedic surgeries. RCC CM and the selected recombinant cytokines were used to analyze their influence on MSCs migration and microarray-targeted gene expression. The expression of genes encoding cytokines was evaluated in 100 matched-paired control-RCC tumor samples. Results: When compared with normal cells, CM from advanced RCC cell lines (Caki-1, KIJ265T) were the strongest stimulators of MSCs migration. Targeted analysis of 274 cytokines and global proteomics of RCC CM revealed decreased DPP4 and EGF, as well as increased AREG, FN1, and MMP1, with consistently altered gene expression in RCC cell lines and tumors. AREG and FN1 stimulated, while DPP4 attenuated MSCs migration. RCC CM induced MSCs’ transcriptional reprogramming, stimulating the expression of CD44, PTX3, and RAB27B. RCC cells secreted hyaluronic acid (HA), a CD44 ligand mediating MSCs’ homing to the kidney. AREG emerged as an upregulator of MSCs’ transcription. Conclusions: advanced RCC cells secrete AREG, FN1 and HA to induce MSCs migration, while DPP4 loss prevents its inhibitory effect on MSCs homing. RCC secretome induces MSCs’ transcriptional reprograming to facilitate their migration. The identified components of RCC secretome represent potential therapeutic targets. We used microarrays to determine the effect of the conditioned media (CM) collected from two RCC-derived cell lines (Caki-1, KIJ265T) and non-tumorous control cell line (RPTEC/TERT1) on the transcriptome change in mesenchymal stem/stromal cells (MSCs).
2023-07-18 | GSE232951 | GEO
Project description:Objectives: Hematopoietic stem cells (HSCs) reside in a specialised microenvironment in the bone marrow, which is majorly composed of mesenchymal stem cells (MSCs) and its' derivatives. This study aimed to investigate the regulatory role of MSCs to decipher the cellular and humoral communications on HSCs' proliferation, self-renewal, and differentiation at the transcriptomic level. Materials and methods: Microarray assay was employed to analyse the gene expression profile of HSCs that imparted by MSCs during co-culture. Results: The proliferation of human umbilical cord blood-derived HSCs (hUC-HSCs) markedly propagated when MSCs were used as the feeder layer, without disturbing the undifferentiated state of HSCs, and reduced the cell death of HSCs. Upon co-culture with MSCs, the global microarray analysis of HSCs disclosed 712 differentially expressed genes (DEGs) (561 up-regulated and 151 down-regulated). The dysregulations of various transcripts were enriched for cellular functions such as cell cycle (including CCND1), apoptosis (including TNF), and genes related to signalling pathways governing self-renewal, as well as WNT5A from the Wnt signalling pathway, MAPK, Hedgehog, FGF2 from FGF, Jak-STAT, and PITX2 from the TGF-β signalling pathway. To concur this, real-time quantitative PCR (RT-qPCR) was utilised for corroborating the microarray results from five of the most dysregulated genes. Conclusion: This study elucidates the underlying mechanisms of the mitogenic influences of MSCs on the propagation of HSCs. The exploitation of such mechanisms provides a potential means for achieving larger quantities of HSCs in vitro, thus obviating the need for manipulating their differentiation potential for clinical application.
2022-05-28 | GSE176002 | GEO