Association of sirolimus adverse effects with m-TOR, p70S6K or Raptor polymorphisms in kidney transplant recipients

被引:25
作者
Woillard, Jean-Baptiste [1 ,2 ,3 ]
Kamar, Nassim [4 ,5 ,6 ]
Rousseau, Annick [1 ,2 ]
Rostaing, Lionel [4 ,5 ,6 ]
Marquet, Pierre [1 ,2 ,3 ]
Picard, Nicolas [1 ,2 ,3 ]
机构
[1] Fac Med Limoges, INSERM, UMR S850, F-87025 Limoges, France
[2] Univ Limoges, Limoges, France
[3] CHU Limoges, Dept Pharmacol & Toxicol, Limoges, France
[4] CHU Toulouse, Dept Nephrol Dialysis & Multiorgan Transplant, Toulouse, France
[5] CHU Purpan, INSERM, U563, IFR BMT, Toulouse, France
[6] Univ Toulouse 3, F-31062 Toulouse, France
关键词
adverse event; mammalian target of rapamycin; p70S6; kinase; pharmacogenetics; raptor; sirolimus; MAMMALIAN TARGET; INHIBITION; IMMUNOSUPPRESSION; DYSLIPIDEMIA; CYCLOSPORINE; EFFICACY; REGIMEN;
D O I
10.1097/FPC.0b013e328357359d
中图分类号
Q81 [生物工程学(生物技术)]; Q93 [微生物学];
学科分类号
071005 ; 0836 ; 090102 ; 100705 ;
摘要
Background The mammalian target of rapamycin (m-TOR) inhibitor sirolimus is an immunosuppressive drug used in kidney transplantation. m-TOR binds with Raptor and phosphorylates p70S6 kinase, a protein involved in numerous cell signalling pathways. We examined the association of candidate polymorphisms in m-TOR, Raptor and p70S6K, sirolimus dose and exposure, and other time-independent as well as time-dependent covariates, with sirolimus-induced adverse events in kidney transplant recipients. Methods This study included a first group of 113 patients, switched from a calcineurin inhibitor to sirolimus, and a validation group of 66 patients from another clinical trial, with the same immunosuppressive regimen. The effects of gene polymorphisms and covariates on the total cholesterol, LDL cholesterol, triglycerides, haemoglobin, cutaneous adverse events, oedemas and infections were studied using multilinear regression, or logistic regression imbedded in linear mixed-effect models. Results An m-TOR variant haplotype was significantly associated with a decrease in haemoglobin levels in the two populations of patients (discovery group: beta = -0.82 g/dl, P = 0.0076; validation group: beta = -1.58 g/dl, P = 0.0308). Increased sirolimus trough levels were significantly associated with increased total cholesterol levels (discovery group: beta = 0.02 g/l, P < 0.0001; validation group: beta = 0.02 g/l, P = 0.0002) and triglyceride levels (discovery group: beta = 0.02 g/l, P = 0.0059; validation group: beta = 0.05 g/l, P = 0.0370). Sirolimus trough levels were also associated with an increased risk for cutaneous adverse events [odds ratio = 1.97, 95% confidence interval (1.32-1.94), P = 0.0009] and oedemas [odds ratio = 1.16, 95% confidence interval (1.03-1.30), P = 0.01342] in the discovery group, but this was not confirmed in the validation group. Conclusion These results provide evidence of an association between an m-TOR haplotype and a decrease in haemoglobin in renal transplant recipients. Pharmacogenetics and Genomics 22: 725-732 (C) 2012 Wolters Kluwer Health | Lippincott Williams & Wilkins.
引用
收藏
页码:725 / 732
页数:8
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