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Mesenchymal cell transplantation

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https://www.readbyqxmd.com/read/28718997/mesenchymal-stem-cell-derived-factors-immuno-modulatory-effects-and-therapeutic-potential
#1
REVIEW
Vladislav Volarevic, Marina Gazdic, Bojana Simovic Markovic, Nemanja Jovicic, Valentin Djonov, Nebojsa Arsenijevic
Stem cell-based therapy is considered to be a new hope in transplantation medicine. Among stem cells, mesenchymal stem cells (MSCs) are, due to their differentiation and immuno-modulatory characteristics, the most commonly used as therapeutic agents in the treatment of immune-mediated diseases. MSCs migrate to the site of inflammation and modulate immune response. The capacity of MSC to alter phenotype and function of immune cells are largely due to the production of soluble factors which expression varies depending on the pathologic condition to which MSCs are exposed...
July 18, 2017: BioFactors
https://www.readbyqxmd.com/read/28713990/inhibition-of-p38mapk-potentiates-mesenchymal-stem-cell-therapy-against-myocardial-infarction-injury-in-rats
#2
Zhiling Zhang, Shulan Zhou, Zhiliang Mei, Ming Zhang
The present study aimed to investigate the protective effect of mesenchymal stem cell (MSC) therapy in combination with p38 mitogen‑activated protein (MAPK) inhibition against myocardial infarction (MI) injury in rats, and to elucidate the underlying mechanisms. An MI model was established by ligation of the anterior descending branch of the left coronary artery. The rats were divided into four groups: MSC transplantation, p38MAPK inhibitor (SB203580), MSC + SB203580 and model control group. HE staining and a TUNEL assay were performed to evaluate pathological changes and apoptosis...
July 14, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28713978/bone-marrow-mesenchymal-stem-cell%C3%A2-derived-extracellular-vesicles-improve-the-survival-of-transplanted-fat-grafts
#3
He Huang, Shaoqing Feng, Wenjie Zhang, Wei Li, Peng Xu, Xiangsheng Wang, Ai Ai
Autologous fat grafting is a promising surgical technique for soft tissue augmentation, reconstruction and rejuvenation. However, it is limited by the low survival rate of the transplanted fat, due to the slow revascularization of such grafts. Previous studies have demonstrated that bone marrow mesenchymal stem cell‑derived extracellular vesicles (BMSC‑EVs) are proangiogenic. The present study aimed to investigate whether BMSC‑EVs could improve the survival of transplanted fat grafts. Extracellular vesicles were isolated from the supernatant of cultured rat bone marrow mesenchymal stem cells, and characterized by flow cytometry and scanning electron microscopy...
July 14, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28713918/endothelial-growth-medium-suppresses-apoptosis-of-mesenchymal-stem-cells-in-vitro-via-decrease-of-mir%C3%A2-29a
#4
Qianqian Wu, Tao Fang, Min Chen, Guoxian Qi
The administration of mesenchymal stem cells (MSCs) in cases of cardiac ischemia/reperfusion injury (IRI) has been associated with a significant reduction of myocardial cell death and an effective improvement in cardiac function. However, one major limiting factor in MSCs transplantation therapy is the low survival rate of the transplanted cells. The present study aimed to demonstrate that human amnion‑derived mesenchymal stem cells (hAMSCs) cultured with endothelial growth medium (EGM‑2) exhibited reduced apoptosis when exposed to serum‑free and hypoxic conditions; and that the expression of microRNA (miR)‑29a decreased significantly...
July 6, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28713741/reconstruction-of-drug-induced-cleft-palate-using-bone-marrow-mesenchymal-stem-cell-in-rodents
#5
Julie Christy Amalraj, Manasa Gangothri, Hari Babu
BACKGROUND: Triamcinolone acetonide (TAC) (Kenacort*) is a commonly used synthetic glucocorticoid in today's medical practice. The drug is also a potential agent in inducing cleft palates in rats. This drug has been used to induce cleft palate in the fetus of the pregnant rats to bring out a suitable animal model for human cleft lip and palate. The drug was given intraperitoneally to induce congenital cleft palate in pregnant mother rats. AIM: The aim of this study is to induce congenital cleft palate in pregnant Wister albino rats and reconstruct the defect with bone marrow mesenchymal stem cells (BMSCs) isolated from the same species along with PLGA (poly lactic co glycolic acid) scaffold...
January 2017: Annals of Maxillofacial Surgery
https://www.readbyqxmd.com/read/28713606/autologous-concentrated-bone-marrow-grafting-for-the-treatment-of-osteonecrosis-of-the-humeral-head-a-report-of-five-shoulders-in-four-cases
#6
Takeshi Makihara, Tomokazu Yoshioka, Hisashi Sugaya, Masashi Yamazaki, Hajime Mishima
Five shoulders in four patients affected by advanced osteonecrosis of the humeral head were treated with autologous concentrated bone marrow grafting. Bone marrow sample was aspirated from the iliac crests, concentrated by a centrifugation technique, and injected into the necrotic site. The shoulders were evaluated radiologically with X-ray scoring and clinically with measurement of range of motion and pain score (visual analogue scale, VAS). The mean follow-up period was 49.4 (range, 24-73) months. The concentration ratio of nucleated cells was calculated and the number of transplanted mesenchymal stem cells (MSC) was estimated by a colony-forming assay...
2017: Case Reports in Orthopedics
https://www.readbyqxmd.com/read/28713424/prolonged-survival-of-subcutaneous-allogeneic-islet-graft-by-donor-chimerism-without-immunosuppressive-treatment
#7
Brend Ray-Sea Hsu, Shin-Huei Fu, Aline Yen Ling Wang
The aim of this study was to investigate whether tolerance-induced protection of islets in the renal subcapsular space can also prevent subcutaneous allogeneic islets from being rejected. We used bone marrow stem cells from C57BL/6 (H2(b)) mice to construct donor chimerism in conditioned diabetic BALB/c (H2(d)) mice and investigated the effect of donor chimerism on engraftment and survival of subcutaneously transplanted allogeneic islets in streptozotocin-induced diabetic mice. We also studied the anti-inflammatory effect of mesenchymal stem cell on islet engraftment...
2017: International Journal of Endocrinology
https://www.readbyqxmd.com/read/28709866/mesenchymal-stem-cell-transplantation-carried-in-svvyglr-modified-self-assembling-peptide-promoted-cardiac-repair-and-angiogenesis-after-myocardial-infarction
#8
Xi-Ren Gao, Hai-Jun Xu, Li-Fang Wang, Chong-Bin Liu, Feng Yu
The efficiency of stem cell therapy for myocardial infarction (MI) was very low due to the hostile microenvironment and poor blood perfusion. In this study, we designed a new self-assembling peptide through adding angiogenic polypeptide SVVYGLR to the carboxyl terminal of RADA16, and evaluated the therapeutic potential of mesenchymal stem cell (MSC) transplantation carried in this designer self-assembling peptide (DSP) on MI. After the model of cell ischemia and hypoxia was established in vitro, cytoprotective effect of DSP on MSC was detected by AO/EB staining...
July 11, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28704335/mesenchymal-stromal-cell-therapy-for-solid-organ-transplantation
#9
Marlies E J Reinders, Cees van Kooten, Ton J Rabelink, Johan W de Fijter
Improvement of long term outcome of kidney transplantation has reached its limits, due to consequences of efficient, but nonspecific immunosuppressive drugs. Mesenchymal Stromal Cells (MSC) have been proposed as an alternative strategy for more refined therapy. The interest in MSCs comes from their antiinflammatory properties on the 1 hand and their propensity to ameliorate tissue damage and mediate repair on the other hand. First clinical trials have demonstrated that administration of MSCs in kidney transplant recipients is safe and feasible and follow-up studies have been initiated with the desired clinical efficacy to reduce ischemia reperfusion injury, to prevent/reverse acute transplant rejection, and to improve long-term transplant survival with minimization of immunosuppression...
July 12, 2017: Transplantation
https://www.readbyqxmd.com/read/28701922/bone-marrow-mesenchymal-stem-cell-transplantation-promotes-functional-improvement-associated-with-cntf-stat3-activation-after-hemi-sectioned-spinal-cord-injury-in-tree-shrews
#10
Liu-Lin Xiong, Fei Liu, Bing-Tuan Lu, Wen-Ling Zhao, Xiu-Juan Dong, Jia Liu, Rong-Ping Zhang, Piao Zhang, Ting-Hua Wang
Hemi-sectioned spinal cord injury (hSCI) can lead to spastic paralysis on the injured side, as well as flaccid paralysis on the contralateral side, which can negatively affect a patient's daily life. Stem-cell therapy may offer an effective treatment option for individuals with hSCI. To examine the role of bone marrow mesenchymal stem cells (BMSCs) transplantation on hSCI and explore related mechanisms in the tree shrews, here, we created a model of hSCI by inducing injury at the tenth thoracic vertebra (T10)...
2017: Frontiers in Cellular Neuroscience
https://www.readbyqxmd.com/read/28700815/mesenchymal-stem-cells-and-their-immunosuppressive-role-in-transplantation-tolerance
#11
REVIEW
Pamina Contreras-Kallens, Claudia Terraza, Karina Oyarce, Tania Gajardo, Mauricio Campos-Mora, María Teresa Barroilhet, Carla Álvarez, Ricardo Fuentes, Fernando Figueroa, Maroun Khoury, Karina Pino-Lagos
Since they were first described, mesenchymal stem cells (MSCs) have been shown to have important effector mechanisms and the potential for use in cell therapy. A great deal of research has been focused on unveiling how MSCs contribute to anti-inflammatory responses, including describing several cell populations involved and identifying soluble and other effector molecules. In this review, we discuss some of the contemporary evidence for use of MSCs in the field of immune tolerance, with a special emphasis on transplantation...
July 12, 2017: Annals of the New York Academy of Sciences
https://www.readbyqxmd.com/read/28698527/engineering-of-a-potent-recombinant-lectin-toxin-fusion-protein-to-eliminate-human-pluripotent-stem-cells
#12
Hiroaki Tateno, Sayoko Saito
The use of human pluripotent stem cells (hPSCs) such as human embryonic stem cells (hESCs) and human induced pluripotent stem cells (hiPSCs) in regenerative medicine is hindered by their tumorigenic potential. Previously, we developed a recombinant lectin-toxin fusion protein of the hPSC-specific lectin rBC2LCN, which has a 23 kDa catalytic domain (domain III) of Pseudomonas aeruginosa exotoxin A (rBC2LCN-PE23). This fusion protein could selectively eliminate hPSCs following its addition to the cell culture medium...
July 10, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28694468/interactome-and-reciprocal-activation-of-pathways-in-topical-mesenchymal-stem-cells-and-the-recipient-cerebral-cortex-following-traumatic-brain-injury
#13
Ping K Lam, Kevin K W Wang, Anthony W I Lo, Cindy S W Tong, Don W C Ching, Kenneth Wong, Zhihui Yang, Themis Kong, Kin K Y Lo, Richard K W Choy, Paul B S Lai, George K C Wong, Wai S Poon
In this study, GFP-MSCs were topically applied to the surface of cerebral cortex within 1 hour of experimental TBI. No treatment was given to the control group. Three days after topical application, the MSCs homed to the injured parenchyma and improved the neurological function. Topical MSCs triggered earlier astrocytosis and reactive microglia. TBI penumbra and hippocampus had higher cellular proliferation. Apoptosis was suppressed at hippocampus at 1 week and reduced neuronal damaged was found in the penumbral at day 14 apoptosis...
July 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28692374/is-there-a-role-for-stem-cells-in-treating-articular-injury
#14
Yusuf H Mirza, Sam Oussedik
Articular cartilage is a specialized tissue with a high prevalence of injuries. The complex architecture of articular cartilage means that injuries are difficult to treat. The sequelae of such injuries include post-traumatic osteoarthritis. Current treatments include microfracture, microdrilling, osteochondral transplantation and matrix autologous chondral implantation. However, current surgical therapies have a number of disadvantages. Mesenchymal stem cells have been suggested as a potential alternative therapy, with a theoretical ability to regenerate articular cartilage...
July 2, 2017: British Journal of Hospital Medicine
https://www.readbyqxmd.com/read/28691584/fibrin-gel-as-a-scaffold-for-photoreceptor-cells-differentiation-from-conjunctiva-mesenchymal-stem-cells-in-retina-tissue-engineering
#15
Mostafa Soleimannejad, Somayeh Ebrahimi-Barough, Masoud Soleimani, Samad Nadri, Seyed Mohammad Tavangar, Ramak Roohipoor, Meysam Yazdankhah, Neda Bayat, Mohammad Riazi-Esfahani, Jafar Ai
Stem cell-based therapies are attraction approaches for regenerative medicine for treating retinal diseases. One of the limitations in cell therapy is cell death following post-injection whit preventing functional integration with retinal tissue. Fibrin gel, a bio-polymeric material with excellent biocompatibility, provides numerous advantages as a tissue engineering scaffold and a stem cell carrier. Therefore, current research is focusing on developing fibrin hydrogel scaffolds to protect stem cells during delivery and to stimulate endogenous regeneration through interactions of transplanted stem cells and retinal tissue...
July 10, 2017: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/28688176/a-novel-role-for-camkk1-in-the-regulation-of-the-mesenchymal-stem-cell-secretome
#16
Feng Dong, Shyam Patnaik, Zhong-Hui Duan, Matthew Kiedrowski, Marc S Penn, Maritza E Mayorga
Transplantation of adult stem cells into myocardial tissue after acute myocardial infarction (AMI), has been shown to improve tissue recovery and prevent progression to ischemic cardiomyopathy. Studies suggest that the effects of mesenchymal stem cells (MSC) are due to paracrine factors released by MSC, as the benefits of MSC can be achieved through delivery of conditioned media (CM) alone. We previously demonstrated that downregulation of Dab2 enhances MSC cardiac protein expression and improves cardiac function after AMI following MSC engraftment...
July 8, 2017: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/28688148/adipose-derived-mesenchymal-stem-cells-therapy-for-acute-kidney-injury-induced-by-ischemia-reperfusion-in-a-rat-model
#17
Jian-Bo Zhang, Xiao-Qiao Wang, Guo-Lin Lu, Huan-Sen Huang, Shi-Yuan Xu
Acute kidney injury (AKI) represents a group of complicated syndromes with a high mortality rate. The administration of adipose-derived mesenchymal stem cells (ADMSCs) has been tested as a possible treatment method for AKI. The long-term evaluation of AKI induced by ischemia/reperfusion (IR) and the probable renal protection of ADMSCs are limited. In this study we have established a rat AKI model induced by IR and investigated the possible protective effects of ADMSCs. Adult Sprague-Dawley (SD) rats were divided into three groups (n=6/each group)...
July 8, 2017: Clinical and Experimental Pharmacology & Physiology
https://www.readbyqxmd.com/read/28687961/allogeneic-adipose-derived-mesenchymal-stem-cell-transplantation-enhances-the-expression-of-angiogenic-factors-in-a-mouse-acute-hindlimb-ischemic-model
#18
Ngoc Bich Vu, Ha Thi-Ngan Le, Thuy Thi-Thanh Dao, Lan Thi Phi, Ngoc Kim Phan, Van Thanh Ta
Cell migration and molecular mechanisms during healing of damaged vascular or muscle tissues are emerging fields of interest worldwide. The study herein focuses on evaluating the role of allogenic adipose-derived mesenchymal stem cells (ADMSCs) in restoring damaged tissues. Using a hindlimb ischemic mouse model, ADMSC-mediated induction of cell migration and gene expression related to myocyte regeneration and angiogenesis were evaluated. ADMSCs were labeled with GFP (ADMSC-GFP). The proximal end of the femoral blood vessel of mice (over 6 months of age) are ligated at two positions then cut between the two ties...
July 8, 2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28687929/periostin-promotes-ectopic-osteogenesis-of-ctla4-modified-bone-marrow-mesenchymal-stem-cells
#19
Fei Zhang, Zhigang Rong, Zhengdong Wang, Zehua Zhang, Dong Sun, Shiwu Dong, Jianzhong Xu, Fei Dai
The improved ectopic osteogenesis of cytotoxic T-lymphocyte-associated antigen 4-Ig-modified bone marrow mesenchymal stem cells (MSCs-CTLA4) has been demonstrated but the mechanisms involved remain to be determined. The extracellular matrix (ECM) has recently been reported to play a vital role in bone formation and periostin (POSTN) has been suggested as a key member in constructing the ECM in bone tissue. We found that POSTN expression in the MSCs-CTLA4 group is significantly enhanced compared with that in the MSCs group, not only in tissue-engineered bone (TEB) with femur heterotopic transplantation in vivo but also under the immune activation condition in vitro...
July 8, 2017: Cell and Tissue Research
https://www.readbyqxmd.com/read/28684912/the-effects-of-grafted-mesenchymal-stem-cells-labeled-with-iron-oxide-or-cobalt-zinc-iron-nanoparticles-on-the-biological-macromolecules-of-rat-brain-tissue-extracts
#20
Bozena Novotna, Vit Herynek, Pavel Rossner, Karolina Turnovcova, Pavla Jendelova
INTRODUCTION: Rat mesenchymal stem cells (rMSCs) labeled with 1) poly-l-lysine-coated superparamagnetic iron oxide nanoparticles or 2) silica-coated cobalt-zinc-iron nanoparticles were implanted into the left brain hemisphere of rats, to assess their effects on the levels of oxidative damage to biological macromolecules in brain tissue. METHODS: Controls were implanted with unlabeled rMSCs. Animals were sacrificed 24 hours or 4 weeks after the treatment, and the implantation site along with the surrounding tissue was isolated from the brain...
2017: International Journal of Nanomedicine
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