Abstract:
:Multiplex immunofluorescence (mIF) allows simultaneous antibody-based detection and quantification of the expression of up to six markers, plus a nuclear counterstain, on a single tissue section. Recent studies have shown the potential for mIF to advance our understanding of complex disease processes, including cancer. It is important that the technique be standardised and validated to facilitate its transition into clinical use. Traditional approaches to mIF rely on manual processing of sections, which is time-consuming and a source of significant variation between samples/individuals. Here we determined if an automated diagnostic tissue stainer could be used for mIF incorporating tyramide signal amplification (TSA), and how the final image quality compared with sections stained semi-automatically or manually. Using tissue microarrays of fixed human breast tumour sections, we observed comparable antibody labelling between the diagnostic autostainer and manual technique. The diagnostic autostainer produced higher signal intensity with similar spectral unmixing efficiency. We also found that microwave treatment for antibody stripping during TSA labelling could be replaced by the heating option incorporated within the diagnostic-use autostainer. These data show that diagnostic autostainers used for traditional immunohistochemistry protocols can be readily adapted to achieve rapid preparation of high-quality sections using a TSA method for clinical mIF.
journal_name
Pathologyjournal_title
Pathologyauthors
Lim JCT,Yeong JPS,Lim CJ,Ong CCH,Wong SC,Chew VSP,Ahmed SS,Tan PH,Iqbal Jdoi
10.1016/j.pathol.2017.11.087subject
Has Abstractpub_date
2018-04-01 00:00:00pages
333-341issue
3eissn
0031-3025issn
1465-3931pii
S0031-3025(17)30327-6journal_volume
50pub_type
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