immunotherapeutical role of flt3 ligand amplification of pulmonary dendritic cells in murine multiple organ dysfunction syndrome in vivo

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2012
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Abstract
Objective To explore the therapeutic effect of Flt3 ligand (Flt3L) on multiple organ dysfunction syndrome (MODS) model via amplification of lung dendritic cells. Methods Animal model of MODS was replicated by injecting zymosan into the peritoneal cavity of BALB/c mice, and then the mice were randomly divided into Flt3L treatment group, MODS group, Flt3L group and control group. Mortality rate was observed. After 12 days, lung mononuclear cells were isolated by density gradient centrifugation and analyzed with flow cytometry. Blood AST, ALT, creatinine, lipase, amylase and glucose were determined by automatic biochemical analyzer. Pathological changes in lung tissue were observed under light microscope. Results Mortality in Flt3L treatment group decreased dramatically compared with MODS group. The proportions of myeloid, plasmacytoid and I-Ad+ DCs in Flt3L group were remarkably increased compared with control group, and the proportion of the three DC subsets in MODS group was much lower than that in control group. Howerver, Flt3L treatment dramatically increased the proportion of them in MODS group. In MODS group, the level of ALT, AST, lipase, amylase and creatinine remarkably increased and blood glucose decreased compared with that of Flt3L and control groups; but in Flt3L treatment group, the level of ALT, AST, lipase, amylase and creatinine decreased and blood glucose increased dramatically, and lung injury mitigated obviously compared with MODS group. Conclusion Flt3L could attenuate lung tissue injury in MODS model, improve organ function, and lower the mortality of experimental animals, thus exerting its immunotherapeutic effects by in vivo amplification of lung dendritic cells.
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wang2012medicalimmunotherapeutical Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Hong-wei WANG;Jiang-yang LU;Guang TIAN;Qian LIU;Yi YANG;Jia-rui KANG
Journal frontiers in neurorobotics
Year 2012
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