Olivia Newton-John Cancer Research Institute

2 ARTICLES PUBLISHED IN JoVE

Medicine

Non-invasive Assessment of the Efficacy of New Therapeutics for Intestinal Pathologies Using Serial Endoscopic Imaging of Live Mice

Matthias Ernst^1,2,3, Adele Preaudet¹, Tracy Putoczki^1,2

¹The Walter and Eliza Hall Institute for Medical Research, ²The Department of Medical Biology, University of Melbourne, ³Olivia Newton-John Cancer Research Institute

We describe methods for longitudinal monitoring of the efficacy of therapeutics for the treatment of colonic pathologies in mice using a rigid endoscope. This protocol can be readily used for the characterization of the therapeutic response of an individual tumor in live mice and also for monitoring potential disease relapse.

Biology

Confocal Microscopy Reveals Cell Surface Receptor Aggregation Through Image Correlation Spectroscopy

Adam C. Parslow^1,2, Andrew H.A. Clayton³, Peter Lock⁴, Andrew M. Scott^1,2,5,6,7

¹Tumour Targeting Laboratory, Olivia Newton-John Cancer Research Institute, ²School of Cancer Medicine, La Trobe University, ³Centre for Micro-Photonics, Faculty of Science, Engineering and Technology, Swinburne University of Technology, ⁴LIMS Bioimaging Facility, La Trobe Institute for Molecular Science, La Trobe University, ⁵Department of Medical Oncology, Olivia Newton-John Cancer and Wellnes Centre, Austin Health, ⁶Department of Medicine, University of Melbourne, ⁷Department of Molecular Imaging and Therapy, Austin Health

Antibodies that bind to target receptors on the cell surface can confer conformation and clustering alterations. These dynamic changes have implications for characterizing drug development in target cells. This protocol utilizes confocal microscopy and image correlation spectroscopy through ImageJ/FIJI to quantify the extent of receptor clustering on the cell surface.