417675.fig.006a
(a)
417675.fig.006b
(b)
417675.fig.006c
(c)
Figure 6: Representative photomicrographs of double IF staining for streptococcal pyrogenic exotoxin B (SPEB) ((a), FITC) and NAPlr ((b), Alexa Fluor 594) in an APSGN patient. A similar but not identical distribution of NAPlr and SPEB was observed in the merged image (c). Generally, NAPlr staining results were rather stronger than SPEB staining results (scale bar = 20 μm).