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. 2022 Jun 9;13:3208. doi: 10.1038/s41467-022-30988-z

Fig. 5. CSP conformation of CSPmut is altered and induces the nitration of hemocytes.

Fig. 5

a Representative image of CSP relative expression in Plasmodium yoelii CSPwt and CSPmut oocysts from mosquitoes (n = 40) detected by western blot at days 7, 9, and 12 post blood meal (upper); CSP relative expression was statistically analyzed (lower). b Representative immunofluorescence image of oocyst (scale bar 10 μm) and hemolymph sporozoites (scale bar 5 μm) from P. yoelii CSPwt or CSPmut parasite-infected mosquitoes stained with anti-CSP-N and anti-CSP-C terminal antibodies. c Representative immunofluorescence image of in vitro nitration of hemocytes from naïve mosquitoes (n = 20) stimulated by midguts (n = 20) from P. yoelii CSPwt or CSPmut parasite-infected mosquitoes at day 5 PI (left). WGA was used to distinguish hemocytes, and hemocyte nitration was determined using anti-nitrotyrosine staining; scale bar 5 μm. Percentage of the nitrated hemocytes was statistically analyzed (right). d GNBP-B1, Rel1, and TEP1 expression in hemocytes from naïve mosquitoes (n = 20) following incubation with midguts (n = 20) from P. yoelii CSPwt or CSPmut parasite-infected mosquitoes at day 5 PI determined using real-time PCR. e Representative immunofluorescence image of the nitration of hemocytes from naïve mosquitoes (n = 20) incubated with midguts from P. yoelii CSPmut parasite-infected mosquitoes (n = 20) at day 5 PI with or without NOX5 silenced (left); scale bar 5 μm. Hemocyte nitration was determined as described in c and statistically analyzed (right). f GNBP-B1, Rel1, and TEP1 expression in hemocytes from naïve mosquitoes (n = 20) with or without dsNOX5 incubated with midguts (n = 20) from P. yoelii CSPmut parasite-infected mosquitoes at day 5 PI. A two-sided Student’s t-test was used for the statistical analysis. The data were presented as the means ± SD; ns, no significance; p-values were shown. The data were combined based on three independent experiments (a, cf) or two independent experiments (b). Source data are provided as a Source Data file.