中国寄生虫学与寄生虫病杂志 ›› 2011, Vol. 29 ›› Issue (1): 8-33-36.

• 论著 • 上一篇    下一篇

骨桥蛋白与肝泡型棘球蚴转移的相关性研究

 张龙1, 张示杰1 *, 曹玉文2, 吴向未1, 彭心宇1, 杨宏强1, 孙红1   

  1. 1 石河子大学第一附属医院肝胆外科,石河子 832008;2 石河子大学医学院病理科,石河子 832008
  • 出版日期:2011-02-28 发布日期:2012-09-27

The Correlation between Osteopontin and Metastasis of Hepatic Echinococcus multilocularis Infection

 ZHANG  Long-1, ZHANG  Qi-Jie-1 *, CAO  Yu-Wen-2, TUN  Xiang-Wei-1, BANG  Xin-Yu-1, YANG  Hong-Jiang-1, SUN  Gong-1   

  1. 1 Department of Hepatobiliary Surgery,The First Affiliated Hospital,Medical College of Shihezi University,Shihezi 832008,China;2 Department of Pathology,Medical College of Shihezi University,Shihezi 832008,China
  • Online:2011-02-28 Published:2012-09-27

摘要: 目的  研究骨桥蛋白(OPN)在肝泡型棘球蚴组织中的分布和表达,探讨骨桥蛋白在肝泡型棘球蚴转移中的作用。  方法  采用开腹直视下肝脏穿刺注射的方法,用20%泡型棘球蚴组织混悬液感染长爪沙鼠40只,每只0.1 ml,建立肝泡型棘球蚴长爪沙鼠模型。感染100 d后剖杀所有长爪沙鼠,观察泡型棘球蚴生长和转移等情况,取长爪沙鼠肝脏、肝泡型棘球蚴组织和转移灶标本。采用苏木素-伊红(HE)染色法和免疫组织化学SP法观察沙鼠肝泡型棘球蚴组织和转移灶中骨桥蛋白的表达情况。 结果  感染泡型棘球蚴的长爪沙鼠的肝脏和腹腔中见大小不等的团块状囊泡。免疫组织化学染色显示,肝泡型棘球蚴长爪沙鼠模型中肝泡型棘球蚴组织中可见骨桥蛋白不同程度的表达,其阳性细胞检出率为70%(28/40),骨桥蛋白主要分布在肝泡型棘球蚴纤维囊壁、炎症细胞和部分肝细胞中。60%(24/40)的长爪沙鼠模型经病理证实发生胸廓内淋巴结转移,伴有胸廓淋巴结棘球蚴转移的肝脏泡型棘球蚴组织的OPN阳性细胞检出率(83%,20/24)高于未发生胸廓淋巴结转移的肝脏泡型棘球蚴组织(50%, 8/16)(P<0.05)。淋巴转移灶中骨桥蛋白阳性细胞检出率(92%, 22/24)明显高于泡球蚴组织(70%, 28/40)(P<0.05)。 结论  骨桥蛋白主要分布在泡型棘球蚴纤维囊壁和炎症细胞,可能促进泡型棘球蚴转移。

关键词: 泡型棘球蚴, 骨桥蛋白, 肝脏, 炎症细胞

Abstract: Objective   To investigate the expression and distribution of osteopontin (OPN) in Echinococcus multilocularis cyst, and explore the role of OPN in the metastasis of hepatic E. multilocularis infection.  Methods   Forty gerbils were infected with 20% E. multilocularis suspension (0.1 ml per gerbil) through abdominal opening injection in liver. Gerbils were sacrificed at 100 days postinfection for observing the growth and metastasis of hepatic echinococcus cyst. The liver, hepatic echinococcus cyst and metastasis tissue were observed on HE stain; the expression of OPN were measured by immunohistochemistry staining (SP method).   Results   E. multilocularis were spread over the liver and abdominal cavity. Expression of OPN was found at different degree in echinococcus cysts. The positive expression rate of OPN in echinococcus cysts was 70% (28/40). OPN was mainly distributed in the germinal layer, inflammatory cells and some liver cells. 60%(24/40) occurred thoracic lymph node metastases. The OPN expression rate in hepatic echinococcus cysts with thoracic lymph node metastases (83%, 20/24) was significantly higher than that of hepatic echinococcus cysts without thoracic lymph node metastases(50%, 8/16) (P<0.05). The positive expression of OPN in lymph node metastases (92%, 22/24) was higher than that of hepatic echinococcus cyst (70%, 28/40) (P<0.05).   Conclusion   Osteopontin mainly distributes in the germinal layer of hepatic echinococcus cyst and inflammatory cells, which might be involved in metastasis of hepatic E. multilocularis infection.