granulocyte 殖民地刺激因素管理导致损坏或修理反应在血吸虫病吗？

• 作者: Lobna Y Ghanem Mona MF Nosseir Olaf Dirsch Soheir S Mahmoud Uta Dahmen Wafaa AF Mansour
• 来源期刊: 世界肝病学杂志：英文版（电子版）
• 学科: 医学
• 关键词: SCHISTOSOMIASIS Granulocyte-colony stimulating factor Periovular GRANULOMA Fibrosis IMMUNOMODULATION Stem cell MOBILIZATION
• 年，卷（期）: 2010,（12）
• 页码范围: 434-441
• 页数: 8页
• 分类号: R532.21

摘要

AIM:To introduce Granulocyte-colony stimulating factor (G-CSF) as a new therapeutic modality for schistosomiasis through stem cell mobilization,immunomodulation or fibrosis remodeling. METHODS:In this study,a 5 d course of human recombinant G-CSF (100 μg/kg sc) was applied to Schis-tosoma mansoni-infected mice at different stages of disease (5 d before infection as well as 3,5 and 7 wk post-infection). The animals were sacrificed at 10 d as well as 4,6 and 8 wk post infection. Mice were examined for:(1) Total leukocyte count which is an accepted surrogate marker for the stem cell mobilization into the circulation; (2) Egg count in intestine and liver tissue to assess the parasitic load; and (3) Histopathological changes in Hx/E and Masson trichrome stained sections as well as collagen content in Sirius redstained liver sections to determine the severity of liver fibrosis. RESULTS:Mice developed leukocytosis. The egg load and the number of granulomas were not affected by the G-CSF treatment but there was an obvious change in the composition of granulomas towards an increased cellularity. Moreover,fibrosis was significantly decreased in treated groups compared to untreated animals (collagen content either preinfection or at 3 and 5 wk post infection:5.8 ± 0.5,4.7 ± 0.5,4.0 ± 0.7 vs 8.2 ± 0.9; P ≤ 0.01). CONCLUSION:Although G-CSF did not cause direct elimination of the parasite,it enhanced granulomatous reaction and reduced the fibrosis. Further investigation of the underlying mechanisms of these two actions is warranted.