Effect of umbilical cord mesenchymal stem cells in human ovarian cancer SKOV3 cells

2019 ◽  
Author(s):  
Xiaoli Lu ◽  
Guangzhi Liu ◽  
Lenan Cheng ◽  
Licong Ge ◽  
ZiYi Zhao ◽  
...  
Keyword(s):  
Ovarian Cancer ◽  
Stem Cells ◽  
Mesenchymal Stem Cells ◽  
Conditioned Medium ◽  
Umbilical Cord ◽  
Culture Method ◽  
Control Group ◽  
Human Umbilical Cord ◽  
Skov3 Cells ◽  
Experimental Group

Abstract Objective:To investigate the effects of human umbilical cord-derived mesenchymal stem cells (hUC-MSCs) on apoptosis and proliferation of human ovarian cancer SKOV3 cells and to explore mechanism.Methods:hUC-MSCs were isolated and cultured by tissue block adherent culture method. The hUC-MSCs phenotype were identified by flow cytometry. The hUC-MSCs lysate and conditioned medium,directly combine were used to treat SKOV3 cells.The effects on the proliferation，apoptosis，mechanism of SKOV3 cells were examined by cell counting kit-8(CCK-8)，Annexin V-FITC/PI，quantitative real time polymerase chain reaction(RT-qPCR) and spheroid formation assays.Establish ovarian cancer xenograft models，1X 106 hUC-MSCs and 2 X 106 hUC-MSCs were administrated into the mice t rear back tumor tissue. After three injections of hUC-MSCs, the nude mice were sacrificed after 1 week of observation.Remove tumor tissue. Observed tumor volume changes every 3 days after the start of the experiment. The expression of CD34 and VEGF were detected by immunohistochemistry.Results:Human umbilical cord mesenchymal stem cells were cultured and isolated from tissue block. Flow cytometry results revealed that the hUC-MSCs marks CD44 and CD29, but not CD45 and CD34 were expressed on obtained cells. The apoptosis of SKOV3 cells was induced by hUC-MSCs lysate, conditioned medium and Transwell co-culture method in SKOV3 cells, and the apoptosis rate was higher with increasing concentration. hUC-MSCs conditioned medium and Transwell co-culture method can inhibit cell proliferation. After adding experimental factors, the conditioned medium and Transwell co-culture method can down-regulate the transcription of PI3KCA, AKT and BCL-2 genes in SKOV3 cells, and up-regulate the Caspase-3 gene.The tumor volume of the experimental group was smaller than that of the control group during the observation period. The expression levels of CD34 and VEGF in the experimental group were significantly lower than those in the control group(P<0.05).Conclusion: The conditioned medium of hUC-MSCs and the co-culture method of hUC-MSCs and SKOV3 can significantly inhibit the proliferation of SKOV3 cells, which is mainly achieved by inhibiting PI3K/AKT signaling pathway. hUC-MSCs can inhibit the growth of subcutaneous subcutaneous transplantation and the expression of CD34 and VEGF in ovarian cancer. It provides a new idea for the treatment of ovarian cancer.

Conditioned medium from the human umbilical cord-mesenchymal stem cells stimulate the proliferation of human keratinocytes

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Sushmitha Sriramulu ◽  
Antara Banerjee ◽  
Ganesan Jothimani ◽  
Surajit Pathak
Keyword(s):  
Stem Cells ◽  
Cell Proliferation ◽  
Wound Healing ◽  
Mesenchymal Stem Cells ◽  
Conditioned Medium ◽  
Umbilical Cord ◽  
Human Keratinocytes ◽  
Human Umbilical Cord ◽  
Hacat Cells ◽  
And Migration

AbstractObjectivesWound healing is a complex process with a sequence of restoring and inhibition events such as cell proliferation, differentiation, migration as well as adhesion. Mesenchymal stem cells (MSC) derived conditioned medium (CM) has potent therapeutic functions and promotes cell proliferation, anti-oxidant, immunosuppressive, and anti-apoptotic effects. The main aim of this research is to study the role of human umbilical cord-mesenchymal stem cells (UC-MSCs) derived CM in stimulating the proliferation of human keratinocytes (HaCaT).MethodsFirstly, MSC were isolated from human umbilical cords (UC) and the cells were then cultured in proliferative medium. We prepared and collected the CM after 72 h. Morphological changes were observed after the treatment of HaCaT cells with CM. To validate the findings, proliferation rate, clonal efficiency and also gene expression studies were performed.ResultsIncreased proliferation rate was observed and confirmed with the expression of Proliferating Cell Nuclear Antigen (PCNA) after treatment with HaCaT cells. Cell-cell strap formation was also observed when HaCaT cells were treated with CM for a period of 5–6 days which was confirmed by the increased expression of Collagen Type 1 Alpha 1 chain (Col1A1).ConclusionsOur results from present study depicts that the secretory components in the CM might play a significant role by interacting with keratinocytes to promote proliferation and migration. Thus, the CM stimulates cellular proliferation, epithelialization and migration of skin cells which might be the future promising application in wound healing.

scholarly journals Clinical and imaging outcomes after intrathecal injection of umbilical cord tissue mesenchymal stem cells in cerebral palsy: a randomized double-blind sham-controlled clinical trial

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Man Amanat ◽  
Anahita Majmaa ◽  
Morteza Zarrabi ◽  
Masoumeh Nouri ◽  
Masood Ghahvechi Akbari ◽  
...  
Keyword(s):  
Stem Cells ◽  
Mesenchymal Stem Cells ◽  
Cerebral Palsy ◽  
Umbilical Cord ◽  
Intrathecal Injection ◽  
Control Group ◽  
Umbilical Cord Tissue ◽  
The Mean ◽  
And Control ◽  
Experimental Group

Abstract Background This study assessed the safety and efficacy of intrathecal injection of umbilical cord tissue mesenchymal stem cells (UCT-MSC) in individuals with cerebral palsy (CP). The diffusion tensor imaging (DTI) was performed to evaluate the alterations in white-matter integrity. Methods Participants (4–14 years old) with spastic CP were assigned in 1:1 ratio to receive either UCT-MSC or sham procedure. Single-dose (2 × 107) cells were administered in the experimental group. Small needle pricks to the lower back were performed in the sham-control arm. All individuals were sedated to prevent awareness. The primary endpoints were the mean changes in gross motor function measure (GMFM)-66 from baseline to 12 months after procedures. The mean changes in the modified Ashworth scale (MAS), pediatric evaluation of disability inventory (PEDI), and CP quality of life (CP-QoL) were also assessed. Secondary endpoints were the mean changes in fractional anisotropy (FA) and mean diffusivity (MD) of corticospinal tract (CST) and posterior thalamic radiation (PTR). Results There were 36 participants in each group. The mean GMFM-66 scores after 12 months of intervention were significantly higher in the UCT-MSC group compared to baseline (10.65; 95%CI 5.39, 15.91) and control (β 8.07; 95%CI 1.62, 14.52; Cohen’s d 0.92). The increase was also seen in total PEDI scores (vs baseline 8.53; 95%CI 4.98, 12.08; vs control: β 6.87; 95%CI 1.52, 12.21; Cohen’s d 0.70). The mean change in MAS scores after 12 months of cell injection reduced compared to baseline (−1.0; 95%CI −1.31, −0.69) and control (β −0.72; 95%CI −1.18, −0.26; Cohen’s d 0.76). Regarding CP-QoL, mean changes in domains including friends and family, participation in activities, and communication were higher than the control group with a large effect size. The DTI analysis in the experimental group showed that mean FA increased (CST 0.032; 95%CI 0.02, 0.03. PTR 0.024; 95%CI 0.020, 0.028) and MD decreased (CST −0.035 × 10-3; 95%CI −0.04 × 10-3, −0.02 × 10-3. PTR −0.045 × 10-3; 95%CI −0.05 × 10-3, −0.03 × 10-3); compared to baseline. The mean changes were significantly higher than the control group. Conclusions The UCT-MSC transplantation was safe and may improve the clinical and imaging outcomes. Trial registration The study was registered with ClinicalTrials.gov (NCT03795974).

Exosomes Derived from Human Umbilical Cord Mesenchymal Stem Cells (huMSCs) Carrying MicroRNA-342 Relieve Protect Severe Acute Pancreatitis Injury (SAP)

2021 ◽  
Vol 11 (9) ◽  
pp. 1838-1843
Author(s):  
Xiaohong Zhou ◽  
Xuzhong Hao ◽  
Feifei He
Keyword(s):  
Stem Cells ◽  
Acute Pancreatitis ◽  
Mesenchymal Stem Cells ◽  
Umbilical Cord ◽  
Severe Acute Pancreatitis ◽  
Pancreatic Tissue ◽  
Inflammatory Factors ◽  
Control Group ◽  
Human Umbilical Cord Blood ◽  
Human Umbilical Cord

To investigate whether exosomes (exo) derived from human umbilical cord mesenchymal stem cells (huMSCs) and microRNA (miRNA)-342 have a protective effect on severe acute pancreatitis (SAP). Human umbilical cord blood was collected to extract huMSC-exo. With sham-operated mice as control group (n = 10), the other mice were induced to SAP model (n = 20), while 10 of the SAP mice received treatment with huMSC-exo. ELISA was performed to determine amylase and TAP level as well as inflammatory factors and HE staining to evaluate pathological changes of pancreatic tissue. The expression of miR-342 and Shh, Ptchl, and Smo in the Hh signal pathway was detected using RT-qPCR. The expression of miR-342 and the mRNA expression of Shh, Ptchl, and Smo was higher than that in model group (p < 0.05). The level of serum amylase, trypsinogen, and IFN-γ,Fasl, and IL-6 was upregulated in pancreas tissues of SAP mice relative to healthy mice, but their levels were decreased upon treatment with huMSC-exo and slightly higher than those of the control group, just not significantly. Collectively, the huMSC-exo may activate the Hh signaling pathway by regulating the expression of miR-342 increasing the expression of Shh, Ptchl, and Smo, and thereby healing of damaged pancreatic tissues in SAP.

scholarly journals Simulated Microgravity Reduces Proliferation and Reorganizes the Cytoskeleton of Human Umbilical Cord Mesenchymal Stem Cells

2020 ◽  
pp. 897-906
Author(s):  
H CHI ◽  
H SON ◽  
D CHUNG ◽  
L HUAN ◽  
T DIEM ◽  
...  
Keyword(s):  
Cell Cycle ◽  
Stem Cells ◽  
Mesenchymal Stem Cells ◽  
Western Blot ◽  
Umbilical Cord ◽  
Simulated Microgravity ◽  
Cellular Proliferation ◽  
Cytoskeletal Proteins ◽  
Control Group ◽  
Human Umbilical Cord

The cytoskeleton plays a key role in cellular proliferation, cell-shape maintenance and internal cellular organization. Cells are highly sensitive to changes in microgravity, which can induce alterations in the distribution of the cytoskeletal and cell proliferation. This study aimed to assess the effects of simulated microgravity (SMG) on the proliferation and expression of major cell cycle-related regulators and cytoskeletal proteins in human umbilical cord mesenchymal stem cells (hucMSCs). A WST-1 assay showed that the proliferation of SMG-exposed hucMSCs was lower than a control group. Furthermore, flow cytometry analysis demonstrated that the percentage of SMG-exposed hucMSCs in the G0/G1 phase was higher than the control group. A western blot analysis revealed there was a downregulation of cyclin A1 and A2 expression in SMG-exposed hucMSCs as well. The expression of cyclin-dependent kinase 4 (cdk4) and 6 (cdk6) were also observed to be reduced in the SMG-exposed hucMSCs. The total nuclear intensity of SMG-exposed hucMSCs was also lower than the control group. However, there were no differences in the nuclear area or nuclear-shape value of hucMSCs from the SMG and control groups. A western blot and quantitative RT-PCR analysis showed that SMG-exposed hucMSCs experienced a downregulation of β-actin and α-tubulin compared to the control group. SMG generated the reorganization of microtubules and microfilaments in hucMSCs. Our study supports the idea that the downregulation of major cell cycle-related proteins and cytoskeletal proteins results in the remodeling of the cytoskeleton and the proliferation of hucMSCs.

scholarly journals Bone collagen particles combined with hUC-MSCs to repair alveolar cleft in rabbits

2020 ◽  
Author(s):  
Xue-Cheng Sun ◽  
Hu Wang ◽  
Jian-Hui Li ◽  
Dan Zhang ◽  
Xu Ma ◽  
...  
Keyword(s):  
Stem Cells ◽  
Mesenchymal Stem Cells ◽  
Computerized Tomography ◽  
Umbilical Cord ◽  
Normal Group ◽  
Bone Collagen ◽  
Control Group ◽  
Human Umbilical Cord ◽  
Micro Ct ◽  
Alveolar Cleft

Abstract Background: Alveolar cleft is a kind of cleft lip and palate, which seriously affects the physical and mental health of patients. In this study, a similar model of human alveolar cleft phenotype was established in rabbits to evaluate the effect of bone collagen particles combined with human umbilical cord mesenchymal stem cells (hUC-MSCs) on the repair of alveolar cleft. Materials &Methods : In this study, 24 adult Japanese white rabbits (JWRs) were selected and randomly divided into 4 groups. Including normal group, control group, materials group and MSCs group. The model of alveolar cleft was established by removing the incisors on the left side of the upper jaw. The normal group did not receive any treatment. In the control group, the incisors were removed and sutured directly. In the material group, the incisor were removed, then filled with bone collagen particles, and finally sutured. In the MSCs group, the incisors were first removed, then filled with bone collagen granules incubated by hUC-MSCs, and then stitched. Blood biochemical analysis was performed 3 months after the operation. Skull tissues were collected for gross observation, and micro-focus computerized tomography (micro-CT) analysis. Paraffin sections were prepared for histological and immunohistochemical staining. Results: The bone collagen particles and hUC-MSCs are not biotoxic and can promote alvenlus regeneration. Bone collagen particles combined with hUC-MSCs were much better than those used alone in inducing bone repair and regeneration. Conclusions: HUC-MSCs can be used as a bone generation inducer combined with bone materials for bone regeneration and repair. Keywords: alveolar cleft，Bone collagen particle, hUC-MSCs (human umbilical cord mesenchymal stem cells),micro-focus computerized tomography (micro-CT)

scholarly journals Differentiation of Human Umbilical Cord Derived Mesenchymal Stem Cells Into Neural Stem Cells Induced by hPRDX5

2021 ◽  
Author(s):  
Yuanyuan Jin ◽  
Beichen Shi ◽  
Qiang Fan ◽  
Kun Liu ◽  
Shuai Fan ◽  
...  
Keyword(s):  
Stem Cells ◽  
Mesenchymal Stem Cells ◽  
Neural Stem Cells ◽  
Umbilical Cord ◽  
Expression Profiles ◽  
Antigen Expression ◽  
Culture Method ◽  
Human Umbilical Cord ◽  
Differentiation Potential ◽  
Surface Antigen Expression

Abstract Background: The objectives of this study were to investigate the characteristics and capacity of human umbilical cord‑derived mesenchymal stem cells (hUC-MSCs) differentiation into neural stem cells (NSCs) and whether this event enhanced by hPRDX5. Methods and Results: The adherent cells were obtained from umbilical cord of normal full-term newborn by caesarean section under aseptic condition, and cultivated by tissue block culture method. The surface antigen expression profiles of hUC-MSCs were monitored and the multi-directional differentiation potential was identified. Following amplification, the cells of the 4th passage were divided into 5 groups (groups A-E). The morphology was observed under inverted microscope, and the positive expression rate of markers of neural stem cell was detected by immunocytochemical and western blot. Flow cytometry revealed that the hUC-MSCs expressed CD29, CD73, CD90 and CD105, but not CD19, CD34, CD45 or HLA-DR. Treatment with hPRDX5 led to the surface markers of neural stem cells which were positive for Nestin, but negative for NSE and GFAP expression. Conclusions: Thus, the findings of the present study demonstrate that hPRDX5 effectively promotes hUC-MSCs to differentiate into neural stem cells possibly through TLR4 signaling pathway.

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