High-Resolution Confocal Fluorescence Imaging of Serine Hydrolase Activity in Cryosections - Application to Glioma Brain Unveils Activity Hotspots Originating from Tumor-Associated Neutrophils.

Conclusions: Our study advances the ABPP methodology to tissue sections, enabling high-resolution confocal fluorescence imaging of global SH activity in anatomically preserved complex native cellular environment. To achieve global portrait of SH activity throughout the section, a probe with broad reactivity towards the SH family members was employed. As ABPP requires no a priori knowledge of the identity of the target, we envisage no imaginable reason why the presently described approach would not work for sections regardless of species and tissue source.
PMID: 32190011 [PubMed]

Source: Biological Procedures Online - March 20, 2020 Category: Molecular Biology Authors: Aaltonen N, Singha PK, Jakupović H, Wirth T, Samaranayake H, Pasonen-Seppänen S, Rilla K, Varjosalo M, Edgington-Mitchell LE, Kasperkiewicz P, Drag M, Kälvälä S, Moisio E, Savinainen JR, Laitinen JT Tags: Biol Proced Online Source Type: research