ArticleClinical and experimental nephrology2025
Impact of Fc-gamma receptor IIIA polymorphism on late-onset neutropenia and clinical outcomes in kidney transplant recipients following rituximab induction therapy.
Article in Clinical and experimental nephrology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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10 authors.
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Abstract
backgroundThis study aimed to investigate the association between the Fc-gamma receptor IIIA (FCGR3A) 158 polymorphism and clinical outcomes in kidney transplantation (KTx) patients. Specifically, we focused on late-onset neutropenia (LON) in ABO-incompatible (ABOi) or HLA-incompatible (HLAi) KTx recipients who underwent rituximab (RTx) desensitization therapy.
methodsFCGR3A 158F/V polymorphisms were identified in 85 ABOi or HLAi KTx recipients who underwent RTx desensitization at our institution between April 2008 and October 2021. We analyzed these polymorphism groups in relation to their preoperative background and incidence of LON, infection, and rejection. In addition, we examined the risk factors for LON development.
resultsThe following FCGR3A 158F/V polymorphisms were identified: FF genotype (n = 45); FV genotype (n = 36), and VV genotype (n = 4). LON occurred in 25 out of 85 recipients within 1 year after KTx, significantly more frequently in patients with the FCGR3A FV + VV genotype (17/40) than in those with the FF genotype (8/45) (p = 0.01). A multivariate analysis identified the V-allele as an independent risk factor for LON (OR, 4.03; 95% CI, 1.38-11.73, p = 0.01). However, there were no significant differences in the incidence rates of post-transplant infection and rejection between the FF and FV + VV genotypes.
conclusionRecipients with the FCGR3A 158 V-allele were identified as having a higher risk of developing LON following KTx with RTx desensitization therapy. However, the presence of this V-allele did not affect the safety or efficacy of RTx desensitization before KTx.
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