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. 2017 Jul 10;65(8):431–444. doi: 10.1369/0022155417719419

Figure 2.

Figure 2.

Comparison of antibody removal efficiency of 2ME/SDS and GnHCl. Tonsil sections were incubated with a FITC-conjugated anti-human IgM, stripped with either 2ME/SDS or GnHCl, counterstained with an AP-conjugated anti-FITC antibody and developed in NBT-BCIP. 2ME/SDS stripping (middle) leaves no stainable primary antibody. Stripping by GnHCl (bottom) leaves IgM+ plasma cells. Identical results are obtained with an anti-Rabbit AP-conjugated (not shown). High magnification in the insets. Scale bar: 500 µm. Abbreviations: 2ME/SDS, beta-mercaptoethanol/sodium dodecyl sulfate; GnHCl, guanidinium hydrochloride; FITC, Fluorescein Isothiocyanate; AP, alkaline phosphatase; NBT-BCIP, 5-bromo-4-chloro-3′-indolyl phosphate.