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Página 1 a partir de 230 resultados
Experimental necrosis and arrest of proliferation of Schwann cells by cytosine arabinoside.
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In developing rat cervical sympathetic trunks, Schwann cells proliferate intensely during the first week after birth but axonal populations do not increase. Thus, experimental inhibition of DNA synthesis should affect Schwann cells and spare axons whose cell bodies are not dividing. The present
Treatment of human tumor cells by combine gene therapy harnessing plasmids expressing human tumor necrosis factor alpha and bacterial cytosine deaminase suicide gene.
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We have assessed the effect of combine cancer gene therapy with exogenous human tumor necrosis factor alpha (hTNFalpha) and Escherichia coli cytosine deaminase (CD) suicide gene on two human breast adenocarcinoma cell lines MDA-MB-361 and SK-BR-3. Transfection of a plasmid containing hTNFalpha under
Cytosine-Phosphorothionate-Guanine Oligodeoxynucleotides Exacerbates Hemophagocytosis by Inducing Tumor Necrosis Factor-Alpha Production in Mice after Bone Marrow Transplantation.
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Hemophagocytic syndrome (HPS) is frequently associated with hematopoietic stem cell transplantation and is treated with some benefit derived from TNF-α inhibitors. However, the mechanisms of how HPS occurs and how a TNF-α inhibitor exerts some benefit to HPS management have remained unclear. We
Cyclopentenyl cytosine induces apoptosis and secondary necrosis in a T-lymphoblastic leukemic cell-line.
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Methotrexate myelopathy with extensive transverse necrosis: report of an autopsy case.
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The patient was a 70-year-old woman with lymphoplasmacytic lymphoma which showed a predominantly diffuse involvement of the bone marrow and kidney. Because atypical lymphocytes appeared in the cerebrospinal fluid, the intrathecal administration of methotrexate (MTX) and cytosine arabinoside (Ara-C)
A rare case of adenoviral fulminant hepatic necrosis after chemotherapy.
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The authors report a rare case of fulminant adenoviral hepatic necrosis occurring after chemotherapy in a patient with a second relapse of acute myeloid leukemia. The literature is reviewed and the role of rapid viral diagnosis in the clinical management of this complication is discussed. A
Tumor necrosis factor-alpha gene promoter methylation in Japanese adults with chronic periodontitis and rheumatoid arthritis.
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OBJECTIVE
Over-expression of tumor necrosis factor-alpha (TNF-α) plays a pathological role in chronic periodontitis (CP) and rheumatoid arthritis (RA), which might be regulated by the epigenetic mechanism. The aim of the present study was to evaluate whether there is a unique methylation profile of
Cytotoxic drugs enhance the ex vivo sensitivity of malignant cells from a subset of acute myeloid leukaemia patients to apoptosis induction by tumour necrosis factor receptor-related apoptosis-inducing ligand.
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We have studied the actions of tumour-necrosis-factor-related apoptosis-inducing ligand (TRAIL) on cells isolated from patients with acute myeloid leukaemia (AML). Apoptosis induction was initially assessed by quantitative morphological analysis. Only 2/19 isolates showed a > 10% increase in
Combination of cytosine deaminase suicide gene expression with DR5 antibody treatment increases cancer cell cytotoxicity.
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Combined treatment using adenoviral-directed enzyme/prodrug therapy and immunotherapy has the potential to become a powerful alternative method of cancer therapy. We have developed adenoviral vectors encoding the cytosine deaminase gene (Ad-CD) and cytosine deaminase:uracil phosphoribosyltransferase
Enhancement of axonal growth into a spinal lesion by topical application of triethanolamine and cytosine arabinoside.
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We have demonstrated that a brief compression lesion of the rat spinal cord produces axotomy with minimal necrosis or scarring and that axons grow into such a lesion along longitudinally oriented capillaries and similarly oriented cordons of ependymal cells and astrocytes. Inasmuch as extensive,
Killing effect of coexpressing cytosine deaminase and thymidine kinase on rat vascular smooth muscle cells.
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BACKGROUND
Vascular smooth muscle cell (VSMC) proliferation following arterial injury plays a critical role in a variety of vascular proliferative disorders, such as atherosclerosis and restenosis after balloon angioplasty. Herpes simplex virus-thymidine kinase (HSV-TK)/ganciclovir (GCV) and E. coli
Tumour necrosis factor 5' promoter single nucleotide polymorphisms influence susceptibility to rheumatoid arthritis (RA) in immunogenetically defined multiplex RA families.
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Tumour necrosis factor (TNF) plays a pivotal role in the pathogenesis of rheumatoid arthritis (RA) and it has been shown that the TNF-lymphotoxin (TNF-LT) region influences susceptibility to RA. To investigate the role of the TNF-LT locus further, inheritance of TNF 5' promoter alleles was
Analysis of tumor necrosis factor-alpha production and polymorphisms of the tumor necrosis factor-alpha gene in individuals with a history of Kawasaki disease.
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BACKGROUND
Tumor necrosis factor (TNF)-alpha plays a central role in the pathogenesis of vasculitis in Kawasaki disease (KD). To address the genetic background of KD, we investigated the level of TNF-alpha production and genetic polymorphisms in the 5' flanking region of the TNF-alpha gene in
Interleukin 1 protects from cytosine arabinoside-induced alopecia in the rat model.
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Protection from cytosine arabinoside-induced alopecia by ImuVert has recently been reported in a rat model. ImuVert, a biologic response modifier, is capable of activating mononuclear cells causing release of various cytokines. In the present study, using the young rat model, recombinant human IL 1
Cytosine deaminase/5-fluorocytosine gene therapy and Apo2L/TRAIL cooperate to kill TRAIL-resistant tumor cells.
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The death ligand Apo2L/TRAIL (Apo2 ligand/tumor necrosis factor-related apoptosis-inducing ligand) eradicates many tumor types while sparing most normal tissues. However, some tumors are resistant to TRAIL. We therefore determined if TRAIL cooperates with cytosine deaminase/5-fluorocytosine
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