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https://www.readbyqxmd.com/read/29116031/mirna-profiling-of-nurown%C3%A2-mesenchymal-stem-cells-secreting-neurotrophic-factors
#1
Yael Gothelf, Haggai Kaspi, Natalie Abramov, Revital Aricha
BACKGROUND: MSC-NTF cells are Mesenchymal Stromal Cells (MSC) induced to express high levels of neurotrophic factors (NTFs) using a culture-medium based approach. MSC-NTF cells have been successfully studied in clinical trials for Amyotrophic Lateral Sclerosis (ALS) patients. MicroRNAs (miRNA) are short non-coding RNA molecules that coordinate post-transcriptional regulation of multiple gene targets. The purpose of this study was to determine whether the miRNA profile could provide a tool for MSC-NTF cell characterization and to distinguish them from the matched MSC from which they are derived...
November 7, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/29111380/hypoxia-inducible-factor-1%C3%AE-may-regulate-the-commitment-of-mesenchymal-stromal-cells-toward-angio-osteogenesis-by-mirna-675-5p
#2
Viviana Costa, Lavinia Raimondi, Alice Conigliaro, Francesca Salamanna, Valeria Carina, Angela De Luca, Daniele Bellavia, Riccardo Alessandro, Milena Fini, Gianluca Giavaresi
BACKGROUND AIMS: During bone formation, angiogenesis and osteogenesis are regulated by hypoxia, which is able to induce blood vessel formation, as well as recruit and differentiate human mesenchymal stromal cells (hMSCs). The molecular mechanisms involved in HIF-1α response and hMSC differentiation during bone formation are still unclear. This study aimed to investigate the synergistic role of hypoxia and hypoxia-mimetic microRNA miR-675-5p in angiogenesis response and osteo-chondroblast commitment of hMSCs...
October 27, 2017: Cytotherapy
https://www.readbyqxmd.com/read/29107738/extracellular-vesicles-released-from-mesenchymal-stromal-cells-stimulate-bone-growth-in-osteogenesis-imperfecta
#3
Satoru Otsuru, Laura Desbourdes, Adam J Guess, Ted J Hofmann, Theresa Relation, Takashi Kaito, Massimo Dominici, Masahiro Iwamoto, Edwin M Horwitz
BACKGROUND: Systemic infusion of mesenchymal stromal cells (MSCs) has been shown to induce acute acceleration of growth velocity in children with osteogenesis imperfecta (OI) despite minimal engraftment of infused MSCs in bones. Using an animal model of OI we have previously shown that MSC infusion stimulates chondrocyte proliferation in the growth plate and that this enhanced proliferation is also observed with infusion of MSC conditioned medium in lieu of MSCs, suggesting that bone growth is due to trophic effects of MSCs...
October 26, 2017: Cytotherapy
https://www.readbyqxmd.com/read/29105402/adipose-derived-stem-cells-affect-mir-145-and-p53-expressions-of-co-cultured-hematopoietic-stem-cells
#4
Tahereh Foroutan, Aisan Farhadi, Saeed Abroun, Bahram Mohammad Soltani
OBJECTIVES: Umbilical cord blood is used for transplantation purposes in regenerative medicine of hematological disorders. MicroRNAs are important regulators of gene expression that control both physiological and pathological processes such as cancer development and incidence. There is a new relation between p53 (tumor suppressor gene) and miR-145 (suppressor of cell growth) upregulation. In this study, we have assessed how adipose-derived stem cells (ADSCs) affect the expansion of hematopoietic stem cells (HSCs), as well as miR-145 and p53 expressions...
January 2018: Cell Journal
https://www.readbyqxmd.com/read/29102598/dicer1-gene-and-mirna-dysregulation-in-mesenchymal-stem-cells-of-patients-with-myelodysplastic-syndrome-and-acute-myeloblastic-leukemia
#5
Hakan Ozdogan, Bala Gur Dedeoglu, Yasemin Oztemur Islakoglu, Alp Aydos, Sevil Kose, Arzu Atalay, Zeynep Arzu Yegin, Ferit Avcu, Duygu Ocean Cetinkaya, Osman Ilhan
Multipotent mesenchymal stem cells (MSC) are key components of the bone marrow (BM) microenvironment. The contribution of this microenvironment to the pathophysiology of myelodysplastic syndrome (MDS) and acute myeloid leukemia (AML) is not well defined. A recent study in mice demonstrated that DICER1 gene deletion in osteoprogenitor cells from the BM microenvironment suppressed osteogenic differentiation and induced MDS and AML-like haematological findings. The present study evaluated the expression profiles of microRNAs (miRNAs) and DICER1 gene in BM-derived MSC of patients with AML (n=12), MDS (n=10) and healthy controls (HC) (n=8)...
October 31, 2017: Leukemia Research
https://www.readbyqxmd.com/read/29067438/mirna-140-inhibits-c3h10t1-2-mesenchymal-stem-cell-proliferation-by-targeting-cxcl12-during-transforming-growth-factor-%C3%AE-3-induced-chondrogenic-differentiation
#6
Qingde Wa, Yi Liu, Shuai Huang, Peiheng He, Jianwei Zuo, Xing Li, Ziqing Li, Liming Dong, Jiachen Peng, Shuhong Wu, Fang Chen, Dongfeng Cai, Xuenong Zou, Wenbo Liao
The aim of the present study was to investigate the role of microRNA (miRNA or miR)-140 in C3H10T1/2 mesenchymal stem cells (MSCs). Cluster analysis was used to evaluate the miRNA expression profile. The expression level of miRNA‑140 was validated by reverse transcription‑quantitative polymerase chain reaction (RT‑qPCR). TargetScan and microRNA.org databases were used to predict target miRNAs and cartilage‑associated target genes. Binding sites between miR‑140 and the target gene were predicted by bioinformatics software...
August 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29064609/the-micronome-of-mesenchymal-stromal-cells-is-partially-responsive-to-inflammation
#7
Hussein Fayyad-Kazan, Mohammad Fayyad-Kazan, Makram Merimi, Nathalie Meuleman, Dominique Bron, Laurence Lagneaux, Mehdi Najar
Mesenchymal stromal cells (MSCs) display a special immunological profile that allows their potential use as immunotherapeutic cells. Nowadays, Foreskin (FSK) represents a valuable reservoir of MSCs with International Society for cellular Therapy (ISCT) compliant criteria and relevant functional properties. However, their mode of action is poorly understood and needs to be more elucidated to optimize their therapeutic use. Because microRNAs (miRNAs) act as key regulators in a wide variety of biological processes, we decided to establish the micronome of FSK-MSCs, the influence of inflammation and the predicted target pathways...
October 24, 2017: Cell Biology International
https://www.readbyqxmd.com/read/29057541/transplantation-of-adipose-tissue-derived-stem-cell-derived-exosomes-ameliorates-erectile-function-in-diabetic-rats
#8
L L Zhu, X Huang, W Yu, H Chen, Y Chen, Y T Dai
Mesenchymal stem cells (MSCs) have been considered as an attractive tool for the therapy of diseases. Accumulating evidence indicates that the healing effects of MSCs are mainly related to paracrine action rather than transdifferentiation. Exosomes excreted from MSCs have emerged as physiologically relevant and powerful components of the MSC secretome. However, whether MSC-derived exosomes can improve erectile function of streptozotocin-induced diabetic rats and its mechanism remains unknown. Our previous work showed that adipose tissue-derived stem cells (ADSCs) transplantation could increase endothelial and smooth muscle contents and improve erectile function of diabetic rats...
October 23, 2017: Andrologia
https://www.readbyqxmd.com/read/28918518/micro-rna-profiling-of-exosomes-from-marrow-derived-mesenchymal-stromal-cells-in-patients-with-acute-myeloid-leukemia-implications-in-leukemogenesis
#9
Juliana Barrera-Ramirez, Jessie R Lavoie, Harinad B Maganti, William L Stanford, Caryn Ito, Mitchell Sabloff, Marjorie Brand, Michael Rosu-Myles, Yevgeniya Le, David S Allan
Gene regulatory networks in AML may be influenced by microRNAs (miRs) contained in exosomes derived from bone marrow mesenchymal stromal cells (MSCs). We sequenced miRs from exosomes isolated from marrow-derived MSCs from patients with AML (n = 3) and from healthy controls (n = 3; not age-matched). Known targets of mIRs that were significantly different in AML-derived MSC exosomes compared to controls were identified. Of the five candidate miRs identified by differential packaging in exosomes, only miR-26a-5p and miR-101-3p were significantly increased in AML-derived samples while miR-23b-5p, miR-339-3p and miR-425-5p were significantly decreased...
September 16, 2017: Stem Cell Reviews
https://www.readbyqxmd.com/read/28842435/mesenchymal-stem-cells-correct-impaired-diabetic-wound-healing-by-decreasing-ecm-proteolysis
#10
Junwang Xu, Carlos Zgheib, Maggie M Hodges, Robert C Caskey, Junyi Hu, Kenneth W Liechty
Impaired diabetic wound healing is associated with a dermal extracellular matrix protein profile favoring proteolysis; within the healing diabetic wound, this is represented by an increase in activated matrix metalloproteinase (MMPs). Treatment of diabetic wounds with mesenchymal stem cells (MSCs) has been shown to improve wound healing; however, there has not yet been an assessment of their ability to correct dysregulation of MMPs in diabetic wounds. Furthermore, there has been no prior assessment of the role of microRNA29b (miR-29b), an inhibitory regulatory molecule that targets MMP-9 mRNA...
October 1, 2017: Physiological Genomics
https://www.readbyqxmd.com/read/28800721/microrna-expression-in-bone-marrow-derived-human-multipotent-stromal-cells
#11
Ian H Bellayr, Abhinav Kumar, Raj K Puri
BACKGROUND: Multipotent stromal cells (MSCs) are being studied in the field of regenerative medicine for their multi-lineage differentiation and immunoregulatory capacity. MicroRNAs (miRNAs) are short non-coding RNAs that are responsible for regulating gene expression by targeting transcripts, which can impact MSC functions such as cellular proliferation, differentiation, migration and cell death. miRNAs are expressed in MSCs; however, the impact of miRNAs on cellular functions and donor variability is not well understood...
August 11, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28764862/ferulic-acid-promotes-osteogenesis-of-bone-marrow-derived-mesenchymal-stem-cells-by-inhibiting-microrna-340-to-induce-%C3%AE-catenin-expression-through-hypoxia
#12
Kewei Du, Ziqiang Li, Xuchen Fang, Tingwei Cao, Yaozeng Xu
Osteogenic differentiation is regulated through multiple signaling networks that may include responses to hypoxia. Antioxidant ferulic acid (FA) can promote hypoxia signaling by inducing hypoxic-induced factor (HIF). However, whether FA could affect osteogenesis has not been explored. We examined human bone marrow-derived mesenchymal stem cell (MSC) following FA treatment. The expression of β-catenin was measured, and candidate microRNAs that target β-catenin were studied. The involvement of hypoxia was investigated in miR-340-5p that contains hypoxia response elements (HRE) in the promoter region...
July 22, 2017: European Journal of Cell Biology
https://www.readbyqxmd.com/read/28761088/shift-of-emt-gradient-in-3d-spheroid-mscs-for-activation-of-mesenchymal-niche-function
#13
Sohee Jeon, Ho-Sun Lee, Ga-Young Lee, Gyeongsin Park, Tae-Min Kim, Jihye Shin, Cheolju Lee, Il-Hoan Oh
Despite the wide use of mesenchymal stromal cells (MSCs) for paracrine support in clinical trials, their variable and heterogeneous supporting activity pose major challenges. While three-dimensional (3D) MSC cultures are emerging as alternative approaches, key changes in cellular characteristics during 3D-spheroid formation remain unclear. Here, we show that MSCs in 3D spheroids undergo further progression towards the epithelial-mesenchymal transition (EMT), driven by upregulation of EMT-promoting microRNAs and suppression of EMT-inhibitory miRNAs...
July 31, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28741069/microrna-100-shuttled-by-mesenchymal-stem-cell-derived-exosomes-suppresses-in-vitro-angiogenesis-through-modulating-the-mtor-hif-1%C3%AE-vegf-signaling-axis-in-breast-cancer-cells
#14
Katayoon Pakravan, Sadegh Babashah, Majid Sadeghizadeh, Seyed Javad Mowla, Majid Mossahebi-Mohammadi, Farangis Ataei, Nasim Dana, Mohammad Javan
BACKGROUND: Human mesenchymal stem cells (MSCs) have been shown to be involved in the formation and modulation of tumor stroma and in interacting with tumor cells, partly through their secretome. Exosomes are nano-sized intraluminal multi-vesicular bodies secreted by most types of cells and have been found to mediate intercellular communication through the transfer of genetic information via coding and non-coding RNAs to recipient cells. Since exosomes are considered as protective and enriched sources of shuttle microRNAs (miRNAs), we hypothesized that exosomal transfer of miRNAs from MSCs may affect tumor cell behavior, particularly angiogenesis...
July 24, 2017: Cellular Oncology (Dordrecht)
https://www.readbyqxmd.com/read/28662151/bone-marrow-mesenchymal-stem-cell-derived-vascular-endothelial-growth-factor-attenuates-cardiac-apoptosis-via-regulation-of-cardiac-mirna-23a-and-mirna-92a-in-a-rat-model-of-myocardial-infarction
#15
Yi-Sun Song, Hyun-Woo Joo, In-Hwa Park, Guang-Yin Shen, Yonggu Lee, Jeong Hun Shin, Hyuck Kim, Kyung-Soo Kim
Bone marrow-mesenchymal stem cell (BM-MSC) therapy improves the recovery of cardiac function after myocardial infarction (MI); however, the underlying molecular mechanisms are not completely understood. Recent studies have shown that microRNAs (miRNAs) modulate the pathophysiology of cardiovascular diseases. Here, we investigated the mechanisms underlying the effects of BM-MSC-derived paracrine factors and cardiac miRNAs on myocardial regeneration after MI. In our study, MI was induced by permanent ligation of the left anterior descending (LAD) coronary artery...
2017: PloS One
https://www.readbyqxmd.com/read/28655163/microrna-21a-5p-pdcd4-axis-regulates-mesenchymal-stem-cell-induced-neuroprotection-in-acute-glaucoma
#16
Wenru Su, Zuohong Li, Y Jia, Yingting Zhu, Wenjia Cai, Peixing Wan, Yingying Zhang, Song Guo Zheng, Yehong Zhuo
Mesenchymal stem cells (MSCs) have been demonstrated to have promising therapeutic benefits for a variety of neurological diseases; however, the underlying mechanisms are poorly understood. Here, we showed that intravitreal infusion of MSCs promoted retinal ganglion cell (RGC) survival in a mouse model of acute glaucoma, with significant inhibition of microglial activation, production of TNF-α, IL-1β, and reactive oxygen species, as well as caspase-8 and caspase-3 activation. In vitro, MSCs inhibited both caspase-8-mediated RGC apoptosis and microglial activation, partly via the action of stanniocalcin 1 (STC1)...
August 1, 2017: Journal of Molecular Cell Biology
https://www.readbyqxmd.com/read/28641614/-effect-of-microrna-214-on-migration-of-cord-blood-cd34-cells-induced-by-bone-marrow-mesenchymal-stem-cells
#17
Jing Ming, Jian Wang, Xu Ye, Hui Xu, Xing-Bing Wang
OBJECTIVE: To investigate the possible effect of MicroRNA-214 (miR-214) on migration of umbilical cord blood CD34(+) hematopoietic stem/progenitor cells induced by BM-MSC. METHODS: After transfection of the inhibitor or mimic of miR-214, the cultured supernatant of BM-MSC were collected respectively. The expression of miR-214 in BM-MSC was detected by real time quantitative PCR, the effect of supernatant on CD34(+) cell migration was evaluated by chemotaxis assays...
June 2017: Zhongguo Shi Yan Xue Ye Xue za Zhi
https://www.readbyqxmd.com/read/28602136/in-situ-forming-hydrogels-with-long-lasting-mir-21-enhances-the-therapeutic-potential-of-msc-by-sustaining-stimulation-of-target-gene
#18
Xianwei Zhang, Yufa Sun, Jianfeng Liu, Zhiyong Yi, Feng Gao, Qiaowei Liu, Yundai Chen
Regulating stem cells by microRNA (miRNA) is promising in regenerative medicine. However, non-viral transfection is usually transient while stably lentiviral transfection is accompanied with oncogenic risk. In the study, we explored the feasibility to retain the microRNAs within biopolymer hydrogels for their long-lasting working and sustaining stimulation of target gene. miRNA-21 (MiR-21), a reported microRNA enhancing the therapeutic potential of mesenchymal stem cells (MSCs) was used. We demonstrated that miR-21 could be efficiently retained within collagen hydrogel after forming complex with cationic polymer polyethylenimine (PEI)...
June 22, 2017: Journal of Biomaterials Science. Polymer Edition
https://www.readbyqxmd.com/read/28587347/effect-of-mesenchymal-stem-cells-on-sj%C3%A3-gren-like-mice-and-the-microrna-expression-profiles-of-splenic-cd4-t-cells
#19
Guang-Feng Ruan, Ling Zheng, Jia-Shu Huang, Wan-Xue Huang, Bang-Dong Gong, Xing-Xing Fang, Xiao-Yu Zhang, Jian-Ping Tang
Mesenchymal stem cells (MSCs) serve immuno-regulatory functions and offer a promising novel treatment for certain autoimmune diseases. The present study investigated the therapeutic effect of mice bone marrow (BM)-MSCs on mice with relatively late stage of Sjögren-like disease and the impact of BM-MSCs on the microRNA (miRNA) expression profiles of splenic CD4+ T cells. Female NOD/Ltj mice were randomized into two groups: The disease group (n=8) and the MSC-treated group (n=8). Female ICR mice served as the healthy control group (n=8)...
June 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28469782/heterogeneous-nuclear-ribonucleoprotein-a1-interacts-with-microrna-34a-to-promote-chondrogenic-differentiation-of-mesenchymal-stem-cells
#20
Xianglong Meng, Jiawen Cui, Yunsheng Wang, Xinuo Zhang, Dongyue Li, Yong Hai, Hongwu Du
The mesenchymal stem cell (MSC) shows potential in degenerative disc disease (DDD) treatment. However, little is known about the function of heterogeneous nuclear ribonucleoprotein A1 (hnRNPA1) in modulating the chondrogenic differentiation of MSCs. This study aimed to investigate the role of hnRNPA1 in the chondrogenic differentiation of MSCs and potential mechanisms. Mouse MSCs C3H10 and chondrogenic ATDC5 cells were used to quantify hnRNPA1 expression. The hnRNPA1 overexpression vectors were transfected into C3H10 cells, cell viability and chondrogenic factors expressions were assessed by MTT assay, qPCR and Western blot, respectively...
2017: American Journal of Translational Research
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