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Genetic Variants Associated With Immunosuppressant Pharmacokinetics and Adverse Effects in the DeKAF Genomics Genome-wide Association Studies.


ABSTRACT: BACKGROUND:The immunosuppressants tacrolimus and mycophenolate are important components to the success of organ transplantation, but are also associated with adverse effects, such as nephrotoxicity, anemia, leukopenia, and new-onset diabetes after transplantation. In this report, we attempted to identify genetic variants which are associated with these adverse outcomes. METHODS:We performed a genome-wide association study, using a genotyping array tailored specifically for transplantation outcomes containing 722?147 single nucleotide polymorphisms, and 2 cohorts of kidney allograft recipients-a discovery cohort and a confirmation cohort-to identify and then confirm genetic variants associated with immunosuppressant pharmacokinetics and adverse outcomes. RESULTS:Several genetic variants were found to be associated with tacrolimus trough concentrations. We did not confirm variants associated with the other phenotypes tested although several suggestive variants were identified. CONCLUSIONS:These results show that adverse effects associated with tacrolimus and mycophenolate are complex, and recipient risk is not determined by a few genetic variants with large effects with but most likely are due to many variants, each with small effect sizes, and clinical factors.

SUBMITTER: Oetting WS 

PROVIDER: S-EPMC6597284 | biostudies-literature | 2019 Jun

REPOSITORIES: biostudies-literature

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Genetic Variants Associated With Immunosuppressant Pharmacokinetics and Adverse Effects in the DeKAF Genomics Genome-wide Association Studies.

Oetting William S WS   Wu Baolin B   Schladt David P DP   Guan Weihua W   van Setten Jessica J   Keating Brendan J BJ   Iklé David D   Remmel Rory P RP   Dorr Casey R CR   Mannon Roslyn B RB   Matas Arthur J AJ   Israni Ajay K AK   Jacobson Pamala A PA  

Transplantation 20190601 6


<h4>Background</h4>The immunosuppressants tacrolimus and mycophenolate are important components to the success of organ transplantation, but are also associated with adverse effects, such as nephrotoxicity, anemia, leukopenia, and new-onset diabetes after transplantation. In this report, we attempted to identify genetic variants which are associated with these adverse outcomes.<h4>Methods</h4>We performed a genome-wide association study, using a genotyping array tailored specifically for transpl  ...[more]

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