scholarly journals Correction: Near-infrared control and real-time detection of osteogenic differentiation in mesenchymal stem cells by multifunctional upconversion nanoparticles

Nanoscale ◽  
2020 ◽  
Vol 12 (25) ◽  
pp. 13840-13840
Author(s):  
Kaipeng Wang ◽  
Qian Wu ◽  
Xichao Wang ◽  
Guohai Liang ◽  
Anli Yang ◽  
...  

Correction for ‘Near-infrared control and real-time detection of osteogenic differentiation in mesenchymal stem cells by multifunctional upconversion nanoparticles’ by Kaipeng Wang et al., Nanoscale, 2020, 12, 10106–10116, DOI: 10.1039/D0NR00872A.

Nanoscale ◽  
2020 ◽  
Vol 12 (18) ◽  
pp. 10106-10116 ◽  
Author(s):  
Kaipeng Wang ◽  
Qian Wu ◽  
Xichao Wang ◽  
Guohai Liang ◽  
Anli Yang ◽  
...  

A multifuctional platform based on meseporous sillicon coated upconversion nanoparticles was developed for near-infrared light controlled and real-time detection of differentiation in mesenchymal stem cells for regeneration medicine.


2020 ◽  
Vol 8 (25) ◽  
pp. 5545-5546
Author(s):  
Qian Wu ◽  
Kaipeng Wang ◽  
Xichao Wang ◽  
Guohai Liang ◽  
Jinming Li

Correction for ‘Delivering siRNA to control osteogenic differentiation and real-time detection of cell differentiation in human mesenchymal stem cells using multifunctional gold nanoparticles’ by Qian Wu et al., J. Mater. Chem. B, 2020, 8, 3016–3027, DOI: 10.1039/c9tb02899d.


2020 ◽  
Vol 8 (15) ◽  
pp. 3016-3027 ◽  
Author(s):  
Qian Wu ◽  
Kaipeng Wang ◽  
Xichao Wang ◽  
Guohai Liang ◽  
Jinming Li

Schematic representation of the multifunctional gold nanoparticles (AuNP-PEI-peptide-FITC) synthesis and siRNA adsorption to silence the PPARγ gene for controlling osteogenic differentiation and real-time detection of ongoing cell differentiation in hMSCs.


2020 ◽  
Vol 10 (6) ◽  
pp. 868-873
Author(s):  
Shengxiang Huang ◽  
Haibo Mei ◽  
Rongguo He ◽  
Kun Liu ◽  
Jin Tang ◽  
...  

The α-calcitonin gene-related peptide (α-CGRP) regulates bone metabolism and has potential applications in enhancing bone remodeling in vivo. However, α-CGRP's role in bone marrow mesenchymal stem cells (BMSCs) osteogenic differentiation remain unclear. Rat BMSCs were separated into control group, α-CGRP group and α-CGRP siRNA group, in which BMSCs were transfected with α-CGRP plasmid and α-CGRP siRNA respectively followed by analysis of α-CGRP level by real time PCR and ELISA, cell proliferation by MTT assay, Caspase 3 activity, ALP activity, formation of calcified nodules by alizarin red staining, Smad1 and Smad7 level by Western blot and Runx2 by real time PCR. αCGRP transfection into BMSCs significantly up-regulated CGRP, which could promote cell proliferation, inhibit Caspase 3 activity, promote ALP activity, increase calcified nodules formation and upregulate Smad1, Smad7 and Runx2 compared to control (P < 0.05); transfection of αCGRP siRNA significantly down-regulated CGRP in BMSCs, inhibited cell proliferation, promoted Caspase 3 activity, inhibited ALP activity, inhibited calcified nodules formation and downregulate Smad1, Smad7 and Runx2 (P < 0.05). αCGRP overexpression promotes the Smad/Runx2 signaling, which in turn promotes BMSCs proliferation and osteogenesis. Decreased αCGRP level inhibits Smad/Runx2 signaling, promotes BMSCs apoptosis, inhibits proliferation and osteogenic differentiation.


2019 ◽  
Vol 9 (10) ◽  
pp. 1429-1434
Author(s):  
Qing Yang ◽  
Cheng Li ◽  
Manli Yan ◽  
Chunhua Fang

Bone marrow mesenchymal stem cells (BMSCs) can be differentiated into different types of cells. SOX9 involves in the development and progression of various diseases. Our study aims to assess SOX9's effect on osteogenic differentiation of BMSCs and its related regulatory mechanisms. Rat BMSCs were isolated and randomly divided into control group, SOX9 group and SOX9 siRNA group, which was transfected with pcDNA-SOX9 plasmid or SOX9 siRNA respectively followed by analysis of SOX9 expression by Real time PCR, cell proliferation by MTT assay, Caspase3 and ALP activity, GSK-3β expression and Wntβ/Catenin Signaling pathway protein expression by Western blot, and expression of osteogenic genes Runx2 and BMP-2 by Real time PCR. Transfection of pcDNA-SOX9 plasmid into BMSCs significantly inhibited cell proliferation, promoted Caspase3 activity, decreased ALP activity and downregulated Runx2 and BMP-2, increased GSK-3β expression and decreased Wntβ/Catenin expression protein expression (P< 0.05). SOX9 siRNA transfection significantly promoted cell proliferation, inhibited Caspase3 activity, increased ALP activity and upregulated Runx2 and BMP-2, downregulated GSK-3β and increased Wntβ/Catenin expression. SOX9 regulates BMSCs proliferation and osteogenic differentiation through Wntβ/Catenin signaling pathway.


2021 ◽  
Author(s):  
Fariba Sadraei ◽  
Marzieh Ghollasi ◽  
Fatemeh Khakpai ◽  
Raheleh Halabian

Abstract Background: Human bone marrow-derived mesenchymal stem (MSCs) cells are undifferentiated cells with the self-renewing ability and multi-lineage differentiation beneficial for regenerative medicine. Nano scaffolds are novel materials employed in bone repair and regeneration. Nisin is a prebiotic that can increase stem cells’ life span and proliferation. This study attempted to provide a proper strategy for bone marrow mesenchymal stem cells differentiation into the Osteocytes on a Poly‐L‐lactic‐acid scaffold (PLLA) after pretreating with probiotic Nisin. Methods: MSC osteogenic differentiation was evaluated by measuring Calcium, Alkaline phosphatase, and quantitative tests such as Real-Time PCR, Acridine Orange, Alizarin Red, Von Kossa, and others. Results: The result of the MTT test showed that the optimal dose of Nisin probiotic for the MSCs’ preconditioning was 200 IU/mL on the 1st, 3rd, and 5th days of culture. Real-time PCR data indicated that the expression rate of ALP, Osteonectin, Osteocalcin, and Collagen I have increased in the presence of Nisin, while the RUNX-2 gene expression has decreased. Furthermore, the results of Alizarin Red and Von Kossa tests, as well as Scanning electron microscopy (SEM), revealed that the cell proliferation in the preconditioned samples with Nisin increased significantly. Conclusions: The study concluded that the cell proliferation and differentiation increased in samples pretreated with Nisin on the PLLA Nano scaffolds.


2017 ◽  
Vol 7 (1) ◽  
pp. 162
Author(s):  
Elahe Vadaye Kheiry ◽  
Kazem Parivar ◽  
Javad Baharara ◽  
Alireza Iranbakhsh

Objective(s): The aim of this study was to evaluate the effects of fisetin to promote osteogenic differentiation in mice bone marrow mesenchymal stem cells (BMSCs).Materials and Methods: In this study cytotoxicity and viability of fisetin was measured by MTT assay. The differentiation effects of fisetin on BMSCs into osteoblast was assessed with alkaline phosphatase (ALP) activity measurement. Alizarin red staining and Real time PCR for osteoblast specific marker, Osteocalcin (OCN) ,Osteopontin (OPN), Runt-related transcription factor 2 (RUNX2), ERK and MAPK were investigatedResults: The results showed that fisetin does not have toxicity effect on BMSCs and it causes cell proliferation; hence 200, 400 and 800 µg/ml of fisetin was selected for the assessment of differentiation progress. Alizarin red staining (ARS) showed that fisetin promotes osteogenic differentiation on BMSCs at 21st day; dependently also higher alkaline phosphates activity was observed in the treatment groups of 10 days culture, compared to the control groups. The evaluation of Real time -PCR result evaluated showed that OCN OPN, RUNX2,ERK and MAPK genes expressions were increased.Conclusion: The results of this method, showed that differentiation in bone marrow stem cells took place through p38 MAPK, and ERK1 gene activation.


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