In vivo migration of Fe3O4@polydopamine nanoparticle-labeled mesenchymal stem cells to burn injury sites and their therapeutic effects in a rat model

2019 ◽  
Vol 7 (7) ◽  
pp. 2861-2872 ◽  
Author(s):  
Xiuying Li ◽  
Zhenhong Wei ◽  
Binxi Li ◽  
Jing Li ◽  
Huiying Lv ◽  
...  

The Fe3O4@PDA NPs enhanced the recruitment of MSCs and improved the anti-inflammatory and healing ability compared with the MSC treatment alone.

2021 ◽  
Author(s):  
Xiuying Li ◽  
Zhenhong Wei ◽  
Binxi Li ◽  
Jing Li ◽  
Huiying Lv ◽  
...  

Correction for ‘In vivo migration of Fe3O4@polydopamine nanoparticle-labeled mesenchymal stem cells to burn injury sites and their therapeutic effects in a rat model’ by Xiuying Li et al., Biomater. Sci., 2019, 7, 2861–2872, DOI: 10.1039/C9BM00242A.


2016 ◽  
Vol 2016 ◽  
pp. 1-11 ◽  
Author(s):  
Rui-Ping Zhang ◽  
Ling-Jie Wang ◽  
Sheng He ◽  
Jun Xie ◽  
Jian-Ding Li

Despite advances in our understanding of spinal cord injury (SCI) mechanisms, there are still no effective treatment approaches to restore functionality. Although many studies have demonstrated that transplantingNT3gene-transfected bone marrow-derived mesenchymal stem cells (BMSCs) is an effective approach to treat SCI, the approach is often low efficient in the delivery of engrafted BMSCs to the site of injury. In this study, we investigated the therapeutic effects of magnetic targeting ofNT3gene-transfected BMSCs via lumbar puncture in a rat model of SCI. With the aid of a magnetic targeting cells delivery system, we can not only deliver the engrafted BMSCs to the site of injury more efficiently, but also perform cells imaging in vivo using MR. In addition, we also found that this composite strategy could significantly improve functional recovery and nerve regeneration compared to transplantingNT3gene-transfected BMSCs without magnetic targeting system. Our results suggest that this composite strategy could be promising for clinical applications.


2018 ◽  
Vol 279 ◽  
pp. 79-88 ◽  
Author(s):  
Eun Jung Oh ◽  
Ho Won Lee ◽  
Senthilkumar Kalimuthu ◽  
Tae Jung Kim ◽  
Hyun Mi Kim ◽  
...  

Nanoscale ◽  
2020 ◽  
Author(s):  
Naishun Liao ◽  
Da Zhang ◽  
Ming Wu ◽  
Huang-Hao Yang ◽  
Xiaolong Liu ◽  
...  

Adipose tissue derived mesenchymal stem cell (ADSC)-based therapy is attractive for liver diseases, but the long-term therapeutic outcome is still far from satisfaction due to low hepatic engraftment efficiency of...


2019 ◽  
Vol 2019 ◽  
pp. 1-15
Author(s):  
Michael B. Avery ◽  
Brooke L. Belanger ◽  
Amy Bromley ◽  
Arindom Sen ◽  
Alim P. Mitha

Several studies have demonstrated a potential interaction between mesenchymal stem cells (MSCs) and saccular aneurysms. In this study, we sought to determine whether allogenic bone marrow-derived MSCs had the ability to prevent aneurysm formation in a known rabbit elastase aneurysm model. MSCs were injected intravenously in experimental rabbits at the time of surgical creation and two weeks postcreation and compared with control rabbits receiving vehicle injection. Angiography was used to compare aneurysm measurements four weeks postcreation, and aneurysms were harvested for histological properties. Serum was collected longitudinally to evaluate cytokine alterations. Serum from control animals was also utilized to perform in vitro tests with MSCs to compare the effect of the serologic environment in animals with and without aneurysms on MSC proliferation and cytokine production. While aneurysm morphometric comparisons revealed no differences, significant cytokine alterations were observed in vitro and in vivo, suggesting both anti-inflammatory and proinflammatory processes were occurring in the presence of MSCs. Histological analyses suggested that tunica intima hyperplasia was inhibited in the presence of MSCs.


2019 ◽  
Vol 2019 ◽  
pp. 1-17 ◽  
Author(s):  
Feng Wang ◽  
Li-ping Nan ◽  
Shi-feng Zhou ◽  
Yang Liu ◽  
Ze-yu Wang ◽  
...  

Stem cell-based tissue engineering in treating intervertebral disc (IVD) degeneration is promising. An appropriate cell scaffold can maintain the viability and function of transplanted cells. Injectable hydrogel has the potential to be an appropriate cell scaffold as it can mimic the condition of the natural extracellular matrix (ECM) of nucleus pulposus (NP) and provide binding sites for cells. This study was aimed at investigating the effect of injectable hydrogel-loaded NP-derived mesenchymal stem cells (NPMSC) for the treatment of IVD degeneration (IDD) in rats. In this study, we selected injectable 3D-RGD peptide-modified polysaccharide hydrogel as a cell transplantation scaffold. In vitro, the biocompatibility, microstructure, and induced differentiation effect on NPMSC of the hydrogel were studied. In vivo, the regenerative effect of hydrogel-loaded NPMSC on degenerated NP in a rat model was evaluated. The results showed that NPMSC was biocompatible and able to induce differentiation in hydrogel in vivo. The disc height index (almost 87%) and MRI index (3313.83±227.79) of the hydrogel-loaded NPMSC group were significantly higher than those of other groups at 8 weeks after injection. Histological staining and immunofluorescence showed that the hydrogel-loaded NPMSC also partly restored the structure and ECM content of degenerated NP after 8 weeks. Moreover, the hydrogel could support long-term NPMSC survival and decrease cell apoptosis rate of the rat IVD. In conclusion, injectable hydrogel-loaded NPMSC transplantation can delay the level of IDD and promote the regeneration of the degenerative IVD in the rat model.


2016 ◽  
Vol 2016 ◽  
pp. 1-11 ◽  
Author(s):  
Xiaozhi Zhao ◽  
Xuefeng Qiu ◽  
Yanting Zhang ◽  
Shiwei Zhang ◽  
Xiaoping Gu ◽  
...  

It has been shown that administration of adipose derived mesenchymal stem cells (AdMSCs) enhanced structural and functional recovery of renal ischemia-reperfusion (IR) injury. Low engraftment of stem cells, however, limits the therapeutic effects of AdMSCs. The present study was designed to enhance the therapeutic effects of AdMSCs by delivering AdMSCs in a three-dimensional (3D) aggregates form. Microwell was used to produce 3D AdMSCs aggregates. In vitro data indicated that AdMSCs in 3D aggregates were less susceptible to oxidative and hypoxia stress induced by 200 μM peroxide and hypoxia/reoxygenation, respectively, compared with those cultured in two-dimensional (2D) monolayer. Furthermore, AdMSCs in 3D aggregates secreted more proangiogenic factors than those cultured in 2D monolayer. 2D AdMSCs or 3D AdMSCs aggregates were injected into renal cortex immediately after induction of renal IR injury. In vivo data revealed that 3D aggregates enhanced the effects of AdMSCs in recovering function and structure after renal IR injury. Improved grafted AdMSCs were observed in kidney injected with 3D aggregates compared with AdMSCs cultured in 2D monolayer. Our results demonstrated that 3D AdMSCs aggregated produced by microwell enhanced the retention and therapeutic effects of AdMSCs for renal IR injury.


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