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  • Homozygous FCGR3A-158V alleles predispose to late onset neutropenia after CHOP-R for Diffuse Large B-cell Lymphoma

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    Author(s)
    Keane, Colm
    Nourse, Jamie P.
    Crooks, Pauline
    Nguyen-Van, Do
    Mutsando, Howard
    Mollee, Peter
    Lea, Rodney
    Gandhi, Maher K.
    Griffith University Author(s)
    Lea, Rodney A.
    Year published
    2012
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    Abstract
    Background Recent reports suggest genetic polymorphisms influence susceptibility to rituximab induced late-onset neutropenia (LON), which in turn may be a predictor of good outcome in B-cell lymphoma. Aims We report the largest study to date assessing FCGR3A-V158F polymorphisms in Diffuse Large B-cell Lymphoma (DLBCL) treated with CHOP-R. The influence of C1qA-A276G polymorphisms in DLBCL, and the impact of both polymorphisms on susceptibility to LON and outcome were also examined. Methods 115 DLBCL patients treated with CHOP-R were compared with 105 healthy Caucasian controls with regards to FCGR3A-V158F and C1qA-A276G ...
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    Background Recent reports suggest genetic polymorphisms influence susceptibility to rituximab induced late-onset neutropenia (LON), which in turn may be a predictor of good outcome in B-cell lymphoma. Aims We report the largest study to date assessing FCGR3A-V158F polymorphisms in Diffuse Large B-cell Lymphoma (DLBCL) treated with CHOP-R. The influence of C1qA-A276G polymorphisms in DLBCL, and the impact of both polymorphisms on susceptibility to LON and outcome were also examined. Methods 115 DLBCL patients treated with CHOP-R were compared with 105 healthy Caucasian controls with regards to FCGR3A-V158F and C1qA-A276G polymorphisms . LON incidence and event free and overall survival (EFS and OS) were analysed for linkage to either polymorphism. Results The FCGR3A-V158F but not the C1qA-A276G polymorphism influenced the risk of developing LON. 50% of FCGR3A-158V/V patients experienced LON. In contrast, only 7% V/F and 2% F/F experienced LON. The FCGR3A-158V/V genotype was associated with LON compared to V/F (p=0.028) and F/F genotypes (p=0.005). Although no patients with either LON or FCGR3A-158V homozygosity relapsed compared to 33% FCGR3A-158F/F and 21% non-LON, this did not translate into improved EFS or OS. Conclusions Polymorphic analysis may be a predictive tool to identify those at high-risk of LON. Prospective studies are required to definitively establish if LON or FCGR3A-158V/V genotype influences outcome.
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    Journal Title
    Internal Medicine Journal
    Volume
    42
    Issue
    10
    DOI
    https://doi.org/10.1111/j.1445-5994.2011.02587.x
    Copyright Statement
    © 2012 Royal Australasian College of Physicians. This is the peer reviewed version of the following article: Homozygous FCGR3A-158V alleles predispose to late onset neutropenia after CHOP-R for diffuse large B-cell lymphoma, Internal Medicine Journal, Volume 42, Issue 10, Pages 1113–1119, which has been published in final form at 10.1111/j.1445-5994.2011.02587.x. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving (http://olabout.wiley.com/WileyCDA/Section/id-828039.html)
    Subject
    Immunogenetics (incl. Genetic Immunology)
    Cardiorespiratory Medicine and Haematology
    Clinical Sciences
    Public Health and Health Services
    Publication URI
    http://hdl.handle.net/10072/50781
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    • Journal articles

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