“…Paraffin-embedded tissues were cut at 4–6 μm thickness and immuno-stained to evaluate the expression of CD3, CD8, CD45RO, Granzyme B, and MICA in every OSCC sample [ 19 ]. Subsequently, the sections were exposed to protein block 5% normal horse serum (Thermo Fisher Scientific, Waltham, MA, USA) and 2% normal goat serum (Thermo Fisher Scientific) and incubated overnight at 4°C with mouse monoclonal anti-MICA (Nichirei Biosciences, Inc., Tokyo, Japan), mouse monoclonal anti-CD3 (PS1, Nichirei Biosciences, Inc.), mouse monoclonal anti-CD8 (C8/144B, Nichirei Biosciences, Inc.), mouse monoclonal anti-UCHL (UCHL1, Nichirei Biosciences, Inc.) for CD45RO, and mouse monoclonal anti-Granzyme B (GrB-7, Nichirei Biosciences, Inc.), respectively [ 20 , 21 ].…”