期刊
ACTA TROPICA
卷 100, 期 3, 页码 163-171出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.actatropica.2006.08.013
关键词
liver; Echinococcus granulosus; osteopontin (OPN); macrophages; calcification
It aims at investigating the expression and distribution of the Osteopontin (OPN) in the pericyst of human hepatic Echinococcus granulosus and their related significances. Sixty pericysts excised by sub-adventitial cystectomy were studied. OPN was detected in 80% (48/60) of cysts by Western blotting and distributed in the side of exocyst layer directing to the parasite, also macrophages were identified in the vicinity of OPN by immunohistochemistry staining. The coexpression of OPN and CD68 was observed by immunofluorescence double labeling and analyzed by Image-Pro Plus 5.1; with special stain techniques, variable degrees of calcium deposits were observed in 80% (48/60) cysts, and the calcium deposits concurrencely found with the OPN expression. The selective distribution of OPN, calcium in the exocyst provides a new pathological evidence for the sub-adventitial cystectomy we developed. The pericyst of hepatic E. granulosus consists of two detachable layers with different formative mechanisms: the exocyst layer directing towards the cyst of parasite was the result of granulomatous reaction; also the results suggest OPN is one regulator in the granulomatous reaction and calcification of exocyst. (c) 2006 Published by Elsevier B.V.
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