Albendazole increases the inflammatory response and the amount of Em2-positive small particles of Echinococcus multilocularis (spems) in human hepatic alveolar echinococcosis lesions

作者：Ricken Franz J; Nell Juliane; Gruener Beate; Schmidberger Julian; Kaltenbach Tanja; Kratzer Wolfgang; Hillenbrand Andreas; Henne Bruns Doris; Deplazes Peter; Moller Peter; Kern Peter; Barth Thomas F E^*

来源：PLoS Neglected Tropical Diseases, 2017, 11(5): e0005636.

DOI：10.1371/journal.pntd.0005636

Background
Alveolar echinococcosis (AE) is caused by the metacestode stage of Echinococcus multilocularis. The inflammatory response to this infection is influenced by the interaction of the parasite with the host. We aimed to analyze human liver lesions infected with Echinococcus multilocularis and the changes of the cellular infiltrates during albendazole (ABZ) treatment.
Methodology/Principal findings
We analyzed liver tissue samples from 8 untreated patients, 5 patients treated with two daily doses of 400 mg ABZ for up to two months and 7 patients treated for more than two months with the same ABZ therapy. A broad panel of monoclonal antibodies was used to characterize the lesion by immunohistochemistry. A change in the cellular infiltrate was observed between the different chemotherapy times. During the initial phases of treatment an increase in CD15(+) granulocytes and CD68(+) histocytes as well as in small particles of Echinococcus multilocularis (spems) was observed in the tissue surrounding the metacestode. Furthermore, we observed an increase in CD4(+) T cells, CD20(+) B cells and CD38(+) plasma cells during a longer duration of treatment.
Conclusions/Significance
ABZ treatment of AE leads to morphological changes characterized by an initial, predominantly acute, inflammatory response which is gradually replaced by a response of the adaptive immune system.

• 出版日期2017-5