Figure 5.
Detection of Ig κ chain expression in B lymphocytes in FFPE human tonsil tissue. κ light chain mRNA transcripts were stained using RNAscope or a commercial non-radioisotopic RNA ISH kit. For RNAscope, a negative control (bacterial gene dapB) was also included. The dotted line outlines the mantle zone. Original magnification, ×40.