To see or not to see: non-invasive imaging for improved readout of drug treatment trials in the murine model of secondary alveolar echinococcosis

Gorgas, Daniela; Marreros Canales, Nelson Antonio; Rufener, Reto; Hemphill, Andrew; Lundström-Stadelmann, Britta (2017). To see or not to see: non-invasive imaging for improved readout of drug treatment trials in the murine model of secondary alveolar echinococcosis. Parasitology, 144(07), pp. 937-944. Cambridge University Press 10.1017/S0031182017000051

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Alveolar echinococcosis (AE) is an emerging zoonotic disease caused by the cestode Echinococcus multilocularis. The secondary infection model of AE is based on intraperitoneal injection of disease-causing metacestodes into the peritoneal cavity of mice, which allows investigations on novel drugs or immunotherapeutical treatment options in vivo. So far, such in vivo studies assessed exclusively the parasite weight at the endpoint of a given treatment period. We here developed an ultrasound (US)-based scoring system that allows to follow-up parasite development in the living animal, and provides insights into parasite growth during the treatment phase. By this method a statistically significant difference between untreated and medicated mice with E. multilocularis infection was observed at 2 months post-infection, and the growth curve of the parasite load was described by a linear mixed model. High correlation and similar levels of variation were observed for the standard method based on parasite weight measurement, the novel US-based scoring system, as well volume segmentation by post-mortem magnetic resonance imaging. Thus, US-based scoring in the live animal has the potential to assist the 3R concept by contributing to the refinement and reduction of animal use in experimental echinococcosis.

Item Type:

Journal Article (Original Article)

Division/Institute:

05 Veterinary Medicine > Research Foci > Host-Pathogen Interaction
05 Veterinary Medicine > Department of Infectious Diseases and Pathobiology (DIP) > Institute of Parasitology
05 Veterinary Medicine > Department of Clinical Veterinary Medicine (DKV)
05 Veterinary Medicine > Department of Clinical Veterinary Medicine (DKV) > DKV - Clinical Radiology
05 Veterinary Medicine > Department of Infectious Diseases and Pathobiology (DIP)
05 Veterinary Medicine > Department of Infectious Diseases and Pathobiology (DIP) > Center for Fish and Wildlife Health (FIWI)

Graduate School:

Graduate School for Cellular and Biomedical Sciences (GCB)

UniBE Contributor:

Schweizer, Daniela Esther; Marreros Canales, Nelson Antonio; Rufener, Reto; Hemphill, Andrew and Lundström Stadelmann, Britta

Subjects:

600 Technology > 630 Agriculture
500 Science > 570 Life sciences; biology

ISSN:

0031-1820

Publisher:

Cambridge University Press

Language:

English

Submitter:

Britta Lundström Stadelmann

Date Deposited:

13 Sep 2017 13:27

Last Modified:

15 Jan 2019 09:08

Publisher DOI:

10.1017/S0031182017000051

PubMed ID:

28270242

BORIS DOI:

10.7892/boris.101326

URI:

https://boris.unibe.ch/id/eprint/101326

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