Background: Acute lung injury and acute respiratory distress syndrome (ALI/ARDS) are devastating clinical syndromes associated with a high mortality rate. We examined the preventive effect of recombinant human granulocyte colony-stimulating factor (rhG-CSF) in a mouse ALI/ARDS model induced by lipopolysaccharide (LPS).
Materials And Methods: Mice were injected with LPS (10-20 mg/kg) with or without rhG-CSF pretreatment (250 mg/kg/d).
Lipopolysaccharide-stimulated leukocytes secrete proinflammatory cytokines including tumor necrosis factor-α and interleukin-12. Over-activation of host defense systems may result in severe tissue damage and requires regulation. Granulocyte colony-stimulating factor and interleukin-10 are candidate cytokines for inducing tolerance to lipopolysaccharide re-stimulation.
View Article and Find Full Text PDFSince liver regeneration after partial hepatectomy (PHx) is known to improve by pretreatment with recombinant human G-CSF (rhG-CSF), we investigated the mechanism by evaluating the distribution and activity of sinusoidal NK cells. F344 rats were treated with rhG-CSF (250 microg/kg/day) for 5 days before PHx. Pretreatment with rhG-CSF improved the serum ALT levels and DNA biosynthesis of the remnant liver tissues at 20 h after PHx.
View Article and Find Full Text PDFThe mortality rate of fulminant hepatic failure (FHF) is high because of retarded liver regeneration. Recombinant human granulocyte colony-stimulating factor (rHuG-CSF) and tacrolimus are known to be immunosuppressive and supportive to liver regeneration. We investigated the effects of their combination therapy in a rat FHF model with a 68% partial hepatectomy and 24% liver necrosis.
View Article and Find Full Text PDFIntramucosal neutrophil infiltration is related to the activity of ulcerative colitis, and Th1 immunity is responsible for the onset of Crohn's disease. We examined the therapeutic effects of recombinant human granulocyte colony-stimulating factor (rHuG-CSF) in the two types of 2,4,6-trinitrobenzene sulfonic acid (TNBS)-induced colitis of five rat strains. SD and DA rats showed much lower mRNA expression levels of endogenous G-CSF in lipopolysaccharide (LPS)-stimulated splenocytes than did Lewis, F344, and BN rats.
View Article and Find Full Text PDFSince recombinant human granulocyte colony-stimulating factor (rhG-CSF)-treated donor leukocyte infusion (G-DLI) has been shown to downregulate type-1 immunity in a heart transplant model, we examined influences of G-DLI on tumor growth in immunosuppressed hosts. F344 rats were treated with tacrolimus (8 mg/kg i.m.
View Article and Find Full Text PDFThis study was performed to retrospectively compare changes in the levels of total cholesterol, non-HDL cholesterol, triglycerides, and immunosuppressive drugs, cyclosporine A and steroids in patients with living-relation renal transplants with those from non-heart-beating donors. We experienced 11 cases of kidney transplants from non-heart-beating donors during the period from April 1995 to May 2003. We evaluated 13 cases of kidney transplants from living-relation donors during the same period.
View Article and Find Full Text PDFThis study was performed to analyze postoperative courses and complications, retrospectively, following transplants from non-heart-beating donors and to examine the correlation between early graft function and clinical parameters. We experienced 11 cases of kidney transplants from non-heart-beating donors during the period from April 1995 to May 2003. Warm ischemic time was less than 30 min in all cases, and total ischemic time ranged from 8.
View Article and Find Full Text PDFWe report a rare case of the development of various tumors over a 16-year period after renal transplantation. A 56-year-old woman underwent renal transplantation using a US kidney. Immunosuppressive treatment consisted of a triple regimen of methylprednisolone, azathioprine, and mizoribine.
View Article and Find Full Text PDFRecombinant human granulocyte colony-stimulating factor (rhG-CSF) is an immunoregulatory drug whose effects include modulation of antigen-presentation. We investigated the potential ameliorative effect of pretreatment with rhG-CSF in a hapten-induced colitis animal model. Sprague-Dawley rats were given rhG-CSF (125 microg/kg subcutaneously twice a day for 5 days) before a colonic instillation of 2,4,6-trinitrobenzene sulfonic acid (TNBS) in 50% ethanol.
View Article and Find Full Text PDFPretransplant treatment of recipients with recombinant human granulocyte colony-stimulating factor (rhG-CSF, 250 microg/kg/day s.c. for 5 days) facilitates heart allograft acceptance in tacrolimus-treated rat recipients.
View Article and Find Full Text PDFBackground: Because recombinant human granulocyte colony-stimulating factor (rhG-CSF) is known to modulate function of antigen-presenting cells, we examined effects of pretransplant host treatment with rhG-CSF on allograft survival.
Methods: In DA-to-Lewis rat heart transplantation, hosts were given pretransplant injections of rhG-CSF (250 microg/kg/day subcutaneously from day -5-0) and/or posttransplant injections of tacrolimus (2 mg/kg/day intramuscularly from day 0-3). Cytokine mRNA levels in grafts were measured by real-time reverse-transcription polymerase chain reaction.
We examined the effects of granulocyte colony-stimulating factor (G-CSF)-mobilized donor leukocyte infusion (G-DLI) on facilitation of allograft survival using heart transplantation from DA to Lewis rats that were transiently treated with tacrolimus (2 mg/kg i.m. on day 0).
View Article and Find Full Text PDFMetastasis to the liver remains an important problem in the treatment of patients with gastrointestinal cancer. We examined the mechanism and effect on liver metastasis of in vivo interleukin-2 (IL-2) gene transfer to the liver. RCN-9 cells derived from F344 rat colon adenocarcinoma were injected into syngeneic rats via the ileocecal vein to induce liver tumors.
View Article and Find Full Text PDFSince recombinant human granulocyte colony-stimulating factor (rhG-CSF) has been reported to induce immune deviation, we examined the effects of pretransplant treatment of recipients with rhG-CSF on heart allograft survival. Before heterotopic heart transplantation from DA to Lewis rats, recipients were given rhG-CSF (125microg/kg s.c.
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