Berlin Institute of Health (BIH)

2 ARTICLES PUBLISHED IN JoVE

Immunology and Infection

An Advanced Murine Model for Nonalcoholic Steatohepatitis in Association with Type 2 Diabetes

Julia Sbierski-Kind^1,2,3,4, Katharina Schmidt-Bleek^3,6, Mathias Streitz^3,5, Jonas Kath^3,5, Joachim Spranger^*1,2,4, Hans-Dieter Volk^*2,3,5

¹Department of Endocrinology & Metabolism Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, ²Berlin Institute of Health (BIH), ³Berlin-Brandenburg Center for Regenerative Therapies (BCRT), Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, ⁴DZHK (German Centre for Cardiovascular Research), ⁵Institute of Medical Immunology, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, ⁶Julius Wolff Institute (JWI) and Center for Musculoskeletal Surgery, Charité - Universitätsmedizin Berlin, Berlin, Germany, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin

A simple and reliable diet-induced rodent animal model for nonalcoholic steatohepatitis (NASH) is described, achieved through non-SPF housing of the animals and administration of a specific high-fat diet. We describe identification of hepatic and adipose immune cell subsets to recapitulate human immunological conditions by exposing mice to environmental germs.

Immunology and Infection

Monitoring Neutrophil Elastase and Cathepsin G Activity in Human Sputum Samples

Dario L. Frey^*1,2, Matteo Guerra^*1,2,3,4, Marcus A. Mall^1,2,5,6,7, Carsten Schultz^1,3,8

¹Translational Lung Research Center Heidelberg (TLRC), German Center for Lung Research (DZL), ²Dept. of Translational Pulmonology, University of Heidelberg, ³Molecular Medicine Partnership Unit (MMPU), European Molecular Biology Laboratory (EMBL), University of Heidelberg, ⁴Faculty of Biosciences, Collaboration for Joint Ph.D. Degree between EMBL and Heidelberg University, University of Heidelberg, ⁵Dept. of Pediatric Pulmonology, Immunology and Critical Care Medicine, Charité – Universitätsmedizin Berlin, ⁶Berlin Institute of Health (BIH), ⁷German Center for Lung Research (DZL), Associated Partner Site, Berlin, ⁸Dept. of Chemical Physiology and Biochemistry, Oregon Health and Science University

The protocols herein described provide a guide to visualize and quantify the activity of neutrophil proteases in human sputum. The applications of such analysis span from the evaluation of anti-inflammatory treatments, to biomarker validation, drug screening and large cohort clinical studies.