The mRNA transcripts of ITGB2 (CD18), ITGAM (CD11b), CFP, CFD, and C5AR1 were upregulated in monocytes derived from patients with ITP, suggesting the enhancement of complement‐mediated phagocytosis in these monocytes (Figure 3E). The gene discussed is CFD; the disease is autoimmune thrombocytopenic purpura.