Biological Function and Mechanism of Bone Marrow Mesenchymal Stem Cells-packed Poly (3,4-ethylenedioxythiophene) (PEDOT) Scaffolds for Peripheral Nerve Injury: The Involvement of miR-21-Notch Signaling Pathway

2017 ◽  
Vol 14 (1) ◽  
pp. 19-25 ◽  
Author(s):  
Wenliang Wu ◽  
Shijun Zhang ◽  
Yunzhen Chen ◽  
Haichun Liu
Keyword(s):  
Stem Cells ◽  
Bone Marrow ◽  
Mesenchymal Stem Cells ◽  
Peripheral Nerve ◽  
Notch Signaling ◽  
Nerve Injury ◽  
Peripheral Nerve Injury ◽  
Biological Function ◽  
Notch Signaling Pathway ◽  
Marrow Mesenchymal Stem Cells

scholarly journals Effect of NTN and Lmx1α on the Notch Signaling Pathway during the Differentiation of Human Bone Marrow Mesenchymal Stem Cells into Dopaminergic Neuron-Like Cells

2021 ◽  
Vol 2021 ◽  
pp. 1-11
Author(s):  
Jinhua Zhang ◽  
Bo Yang ◽  
Lilin Luo ◽  
Linhui Li ◽  
Xuantao Yang ◽  
...  
Keyword(s):  
Stem Cells ◽  
Bone Marrow ◽  
Mesenchymal Stem Cells ◽  
Notch Signaling ◽  
Signaling Pathway ◽  
Dopaminergic Neuron ◽  
Notch Signaling Pathway ◽  
Control Group ◽  
Marrow Mesenchymal Stem Cells

Human bone marrow mesenchymal stem cells (h-BMSCs) have the potential to differentiate into dopaminergic neuron-like cells to treat Parkinson’s disease. The Notch signaling pathway has been implicated in the regulation of cell fate decisions such as differentiation of BMSCs. This study investigated changes in the expression of Notch-related genes in the differentiation of BMSCs in vitro into dopaminergic (DA) neuron-like cells. BMSCs transfected with empty lentiviral vectors served as the control group and those transfected with NTN and Lmx1α recombinant lentiviral vectors served as the experimental group. After induction and culture of NTN and Lmx1α-transfected h-BMSCs for 21 days, the cells exhibited features of dopaminergic neuron-like cells, which were observed by transmission and scanning electron microscopy and verified by immunofluorescence of tyrosine hydroxylase (TH) and dopamine transporter (DAT). These induced cells could secrete dopamine and had basic action potentials. Expression of the neural stem cell (NSC) markers, including octamer-binding protein (Oct4), paired box gene 6 (Pax6), and sex determining region Y-box 1 (SOX1), increased on day 14 of induction and decreased on day 21 of induction during differentiation. The human Notch signaling pathway PCR array showed a differential expression of Notch-related genes during the differentiation of h-BMSCs into DA neuron-like cells in vitro relative to that in the control group. In conclusion, h-BMSCs overexpressing NTN and Lmx1α can successfully be induced to differentiate into dopaminergic neuron-like cells with a neuronal phenotype exhibiting fundamental biological functions in vitro, and NTN and Lmx1α may affect the expression of Notch-related genes during differentiation.

Evaluation of nerve growth factor (NGF) treated mesenchymal stem cells for recovery in neurotmesis model of peripheral nerve injury

2018 ◽  
Vol 46 (6) ◽  
pp. 898-904 ◽  
Author(s):  
Mehrnaz Moattari ◽  
Homa Mohseni Kouchesfehani ◽  
Gholamreza Kaka ◽  
Seyed Homayoon Sadraie ◽  
Majid Naghdi
Keyword(s):  
Stem Cells ◽  
Mesenchymal Stem Cells ◽  
Nerve Growth Factor ◽  
Growth Factor ◽  
Peripheral Nerve ◽  
Nerve Injury ◽  
Peripheral Nerve Injury ◽  
Nerve Growth

Notch Signaling Pathway in Hematopoietic Stem Cells Is Activated through Interactive Communication with Mesenchymal Stem Cells.

Blood ◽  
2007 ◽  
Vol 110 (11) ◽  
pp. 1408-1408
Author(s):  
Yuji Kikuchi ◽  
Akihiro Kume ◽  
Masashi Urabe ◽  
Hiroaki Mizukami ◽  
Takahiro Suzuki ◽  
...  
Keyword(s):  
Stem Cells ◽  
Bone Marrow ◽  
Mesenchymal Stem Cells ◽  
Notch Signaling ◽  
Notch Signaling Pathway ◽  
Cell Contact ◽  
Rt Pcr ◽  
Interactive Communication ◽  
Hematopoietic Stem ◽  
Notch Ligands

Abstract Mesenchymal stem cells (MSCs), which are key elements of hematopoietic microenvironment in bone marrow, are known to play a critical role in supporting hematopoiesis. A variety of hematopoietic growth factors are produced from MSCs, and cell-to-cell contact is also believed to be crucial in the interaction between hematopoietic stem cells (HSCs) and MSCs. However, the molecular mechanisms of hematopoiesis-supporting ability of MSCs are still unclear. In particular, there is little information regarding the effects of HSCs on MSC function. In the present study, we investigated the cellular and molecular events in the interactive communication between HSCs and MSCs using a differentiation-inducible MSC model; i.e. parent C3H10T1/2 cells and 10T1/2-derived cell lines, A54 preadipocytes and M1601 myoblasts. These cells were co-cultured with murine HSCs (Lin-Sca1+) isolated from bone marrow. There was 9-fold increase in the number of hematopoietic progenitors after co-culture with A54 preadipocytes, whereas there was no increase when co-cultured with parent 10T1/2 or M1601 cells. More intriguingly, cobblestone areas were observed only when HSCs were co-cultured with A54 cells. Quantitative RT-PCR showed that A54 cells express significantly higher levels of SCF, SDF-1, and angiopoietin-1 (Ang-1) compared with parent 10T1/2 cells and M1601 cells, although these cytokines were not up-regulated when co-cultured with HSCs. To search for the genes involved in the interaction between HSCs and MSCs, we compared gene expression profiles before and after the co-culture by using a microarray analysis. Among the candidate genes with up-regulation after the co-culture, we paid attention to the Notch system, because Notch ligands are considered to play an important role in nurturing HSCs within the hematopoietic microenvironment. As a result, the expression of Notch ligands, Jagged1 and Dll3, increased in A54 cells after the coculture with HSCs. On the other hand, the expression of Notch1 and Hes-1 also increased in HSCs upon co-culture with A54 cells. These data were confirmed by quantitative RT-PCR. Moreover, when HSCs were co-cultured with A54 cells without cell-to-cell contact using Transwell permeable supports, there was neither increase in the number of progenitors in the upper wells, nor the up-regulation of Notch ligands in A54 cells in the lower wells. These findings support the idea that HSCs act on MSCs to induce the expression of Notch ligands via direct cell-to-cell contact and that the Notch ligands derived from MSCs act on HSCs in turn to activate Notch signaling pathway, possibly leading to the cobblestone formation with the maintenance of immature state of HSCs. The Notch system may be one of the critical elements in the interactive communication between HSCs and MSCs.

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