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| Registros recuperados: 32 | |
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| Rosa,S.B.; Voltarelli,J.C.; Chies,J.A.B.; Pranke,P.. |
| Autoimmune diseases constitute a heterogeneous group of conditions commonly treated with anti-inflammatory, immunosuppressant and immunomodulating drugs, with satisfactory results in most cases. Nevertheless, some patients become resistant to conventional therapy. The use of high doses of drugs in such cases results in the need for bone marrow reconstitution, a situation which has stimulated research into the use of hematopoietic stem cells in autoimmune disease therapy. Stem cell transplantation in such diseases aims to destroy the self-reacting immune cells and produce a new functional immune system, as well as substitute cells for tissue damaged in the course of the disease. Significant results, such as the reestablishment of tolerance and a decrease in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Autoimmune disease; Stem cells; Transplantation; Lupus erythematosus; Arthritis; Type I diabetes mellitus. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2007001200001 |
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| Fukushima,M.G.; Furlan,I.; Chiavegatti,T.; Kiyomoto,B.H.; Godinho,R.O.. |
| The present study analyzes the ectopic development of the rat skeletal muscle originated from transplanted satellite cells. Satellite cells (10(6) cells) obtained from hindlimb muscles of newborn female 2BAW Wistar rats were injected subcutaneously into the dorsal area of adult male rats. After 3, 7, and 14 days, the transplanted tissues (N = 4-5) were processed for histochemical analysis of peripheral nerves, inactive X-chromosome and acetylcholinesterase. Nicotinic acetylcholine receptors (nAChRs) were also labeled with tetramethylrhodamine-labeled alpha-bungarotoxin. The development of ectopic muscles was successful in 86% of the implantation sites. By day 3, the transplanted cells were organized as multinucleated fibers containing multiple clusters of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Skeletal muscle; Satellite cells; Stem cells; Transplantation; Myogenesis; 2BAW rats. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2005000300007 |
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| Zhou,Xiaoling; Yang,Jianqing; Liu,Ying; Li,Zepeng; Yu,Jingfang; Wei,Wanhua; Chen,Qiao; Li,Can; Tang,Nong. |
| Bone marrow mesenchymal stem cells (BMSCs) transplantation has attracted attention for the treatment of liver cirrhosis and end-stage liver diseases. Therefore, in this study, we evaluated the effect of different methods of BMSCs transplantation in the treatment of liver cirrhosis in rats. Seventy-two male Sprague-Dawley rats were divided into 7 groups: 10 were used to extract BMSCs, 10 were used as normal group, and the remaining 52 rats were randomly divided into five groups for testing: control group, BMSCs group, BMSCs+granulocyte colony-stimulating factor (G-CSF) group, and BMSCs+Jisheng Shenqi decoction (JSSQ) group. After the end of the intervention course, liver tissue sections of rats were subjected to hematoxylin and eosin (H&E) and Masson... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bone marrow mesenchymal stem cells; Transplantation; Liver cirrhosis; Granulocyte colony-stimulating factor; Jisheng Shenqi decoction. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2019000300606 |
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| Minguell,J.J.; Conget,P.; Erices,A.. |
| Within the complex cellular arrangement found in the bone marrow stroma there exists a subset of nonhematopoietic cells referred to as mesenchymal progenitor cells (MPC). These cells can be expanded ex vivo and induced, either in vitro or in vivo, to terminally differentiate into at least seven types of cells: osteocytes, chondrocytes, adipocytes, tenocytes, myotubes, astrocytes and hematopoietic-supporting stroma. This broad multipotentiality, the feasibility to obtain MPC from bone marrow, cord and peripheral blood and their transplantability support the impact that the use of MPC will have in clinical settings. However, a number of fundamental questions about the cellular and molecular biology of MPC still need to be resolved before these cells can be... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mesenchymal progenitor cells; Transplantation; Differentiation. |
| Ano: 2000 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2000000800003 |
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| Shen,H.; Lv,Y.; Shen,X.Q.; Xu,J.H.; Lu,H.; Fu,L.C.; Duan,T.. |
| This study evaluated the effect of muscle satellite cells (MSCs) overexpressing myogenin (MyoG) on denervated muscle atrophy. Rat MSCs were isolated and transfected with the MyoG-EGFP plasmid vector GV143. MyoG-transfected MSCs (MTMs) were transplanted into rat gastrocnemius muscles at 1 week after surgical denervation. Controls included injections of untransfected MSCs or the vehicle only. Muscles were harvested and analyzed at 2, 4, and 24 weeks post-transplantation. Immunofluorescence confirmed MyoG overexpression in MTMs. The muscle wet weight ratio was significantly reduced at 2 weeks after MTM injection (67.17±6.79) compared with muscles injected with MSCs (58.83±5.31) or the vehicle (53.00±7.67; t=2.37, P=0.04 and t=3.39, P=0.007, respectively). The... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Denervation; Muscle atrophy; Satellite cells; Myogenin; Transplantation; Transfection. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2016000200609 |
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| Maria-Engler,S.S.; Mares-Guia,M.; Correa,M.L.C.; Oliveira,E.M.C.; Aita,C.A.M.; Krogh,K.; Genzini,T.; Miranda,M.P.; Ribeiro,M.; Vilela,L.; Noronha,I.L.; Eliaschewitz,F.G.; Sogayar,M.C.. |
| In the 70's, pancreatic islet transplantation arose as an attractive alternative to restore normoglycemia; however, the scarcity of donors and difficulties with allotransplants, even under immunosuppressive treatment, greatly hampered the use of this alternative. Several materials and devices have been developed to circumvent the problem of islet rejection by the recipient, but, so far, none has proved to be totally effective. A major barrier to transpose is the highly organized islet architecture and its physical and chemical setting in the pancreatic parenchyma. In order to tackle this problem, we assembled a multidisciplinary team that has been working towards setting up the Human Pancreatic Islets Unit at the Chemistry Institute of the University of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Human pancreatic islets; Pancreas; Extracellular matrix; Stem cells; Islet microencapsulation; Transplantation; Ductal cells. |
| Ano: 2001 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2001000600001 |
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| Bueno,V.; Pestana,J.O.M.. |
| Organ transplantation can be considered as replacement therapy for patients with end-stage organ failure. The percent of one-year allograft survival has increased due, among other factors, to a better understanding of the rejection process and new immunosuppressive drugs. Immunosuppressive therapy used in transplantation prevents activation and proliferation of alloreactive T lymphocytes, although not fully preventing chronic rejection. Recognition by recipient T cells of alloantigens expressed by donor tissues initiates immune destruction of allogeneic transplants. However, there is controversy concerning the relative contribution of CD4+ and CD8+ T cells to allograft rejection. Some animal models indicate that there is an absolute requirement for CD4+ T... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Transplantation; Rejection; T cells; Cytokines; Chemokines. |
| Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2002001100001 |
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| Cezar,Alfredo Skrebsky; Glanzner,Werner Giehl; Gutierrez,Karina; Anezi-Junior,Paulo Afonso; Nilles,Carlise Reichert; Comim,Fábio Vasconcellos; Vogel,Fernanda Silveira Flores; Gonçalves,Paulo Bayard Dias. |
| Cell therapy has shown encouraging perspectives for human and veterinary medicine. Experimentally, genetic manipulation allows to mark and locate allogeneic cells. However, this makes their genotype/phenotype different from non-marked cells used clinically. Alternatively, the presence of the Y-chromosome enables male donor cells detection in female organisms. However, the concentration of engrafted cells may be minimal in tissues, due to systemic distribution. In this study, a nested-PCR multiplex test was developed, aiming to increase the sensitivity of the presence/absence diagnosis of male mice adipose-derived (ADSC-Y) and bone marrow mononuclear (BMNC-Y) cells in samples of blood and lungs from females, after endovenous transplantation. Four females... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cellular therapy; Transplantation; Allogeneic cells; Diagnosis; Y-chromosome.. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782015000500905 |
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| Registros recuperados: 32 | |
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