Implementation and evaluation of amyloidosis subtyping by laser-capture microdissection and tandem mass spectrometry.
Peter Mollee, Samuel Boros, Dorothy Loo, Jayde E Ruelcke, Vanessa A Lakis, Kim-Anh Lê Cao, Patricia Renaut, Michelle M Hill
Clin Proteomics | Springer Science and Business Media LLC | Published : 2016
BACKGROUND: Correct identification of the amyloidosis-causing protein is crucial for clinical management. Recently the Mayo Clinic reported laser-capture microdissection (LCM) with liquid chromatography-coupled tandem mass spectrometry (MS/MS) as a new diagnostic tool for amyloid diagnosis. Here, we report an independent implementation of this proteomic diagnostics method at the Princess Alexandra Hospital Amyloidosis Centre in Brisbane, Australia. RESULTS: From 2010 to 2014, 138 biopsies received from 35 different organ sites were analysed by LCM-MS/MS using Congo Red staining to visualise amyloid deposits. There was insufficient tissue in the block for LCM for 7 cases. An amyloid forming p..View full abstract