Gut microbiota and tacrolimus dosing in kidney transplantation

Tacrolimus dosing to establish therapeutic levels in recipients of organ transplants is a challenging task because of much interpatient and intrapatient variability in drug absorption, metabolism, and disposition. In view of the reported impact of gut microbial species on drug metabolism, we investi...

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Veröffentlicht in:PloS one 2015-03, Vol.10 (3), p.e0122399-e0122399
Hauptverfasser: Lee, John R, Muthukumar, Thangamani, Dadhania, Darshana, Taur, Ying, Jenq, Robert R, Toussaint, Nora C, Ling, Lilan, Pamer, Eric, Suthanthiran, Manikkam
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creator Lee, John R
Muthukumar, Thangamani
Dadhania, Darshana
Taur, Ying
Jenq, Robert R
Toussaint, Nora C
Ling, Lilan
Pamer, Eric
Suthanthiran, Manikkam
description Tacrolimus dosing to establish therapeutic levels in recipients of organ transplants is a challenging task because of much interpatient and intrapatient variability in drug absorption, metabolism, and disposition. In view of the reported impact of gut microbial species on drug metabolism, we investigated the relationship between the gut microbiota and tacrolimus dosing requirements in this pilot study of adult kidney transplant recipients. Serial fecal specimens were collected during the first month of transplantation from 19 kidney transplant recipients who either required a 50% increase from initial tacrolimus dosing during the first month of transplantation (Dose Escalation Group, n=5) or did not require such an increase (Dose Stable Group, n=14). We characterized bacterial composition in the fecal specimens by deep sequencing of the PCR amplified 16S rRNA V4-V5 region and we investigated the hypothesis that gut microbial composition is associated with tacrolimus dosing requirements. Initial tacrolimus dosing was similar in the Dose Escalation Group and in the Stable Group (4.2 ± 1.1 mg/day vs. 3.8 ± 0.8 mg/day, respectively, P=0.61, two-way between-group ANOVA using contrasts) but became higher in the Dose Escalation Group than in the Dose Stable Group by the end of the first transplantation month (9.6 ± 2.4 mg/day vs. 3.3 ± 1.5 mg/day, respectively, P
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In view of the reported impact of gut microbial species on drug metabolism, we investigated the relationship between the gut microbiota and tacrolimus dosing requirements in this pilot study of adult kidney transplant recipients. Serial fecal specimens were collected during the first month of transplantation from 19 kidney transplant recipients who either required a 50% increase from initial tacrolimus dosing during the first month of transplantation (Dose Escalation Group, n=5) or did not require such an increase (Dose Stable Group, n=14). We characterized bacterial composition in the fecal specimens by deep sequencing of the PCR amplified 16S rRNA V4-V5 region and we investigated the hypothesis that gut microbial composition is associated with tacrolimus dosing requirements. 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In view of the reported impact of gut microbial species on drug metabolism, we investigated the relationship between the gut microbiota and tacrolimus dosing requirements in this pilot study of adult kidney transplant recipients. Serial fecal specimens were collected during the first month of transplantation from 19 kidney transplant recipients who either required a 50% increase from initial tacrolimus dosing during the first month of transplantation (Dose Escalation Group, n=5) or did not require such an increase (Dose Stable Group, n=14). We characterized bacterial composition in the fecal specimens by deep sequencing of the PCR amplified 16S rRNA V4-V5 region and we investigated the hypothesis that gut microbial composition is associated with tacrolimus dosing requirements. Initial tacrolimus dosing was similar in the Dose Escalation Group and in the Stable Group (4.2 ± 1.1 mg/day vs. 3.8 ± 0.8 mg/day, respectively, P=0.61, two-way between-group ANOVA using contrasts) but became higher in the Dose Escalation Group than in the Dose Stable Group by the end of the first transplantation month (9.6 ± 2.4 mg/day vs. 3.3 ± 1.5 mg/day, respectively, P&lt;0.001). Our systematic characterization of the gut microbial composition identified that fecal Faecalibacterium prausnitzii abundance in the first week of transplantation was 11.8% in the Dose Escalation Group and 0.8% in the Dose Stable Group (P=0.002, Wilcoxon Rank Sum test, P&lt;0.05 after Benjamini-Hochberg correction for multiple hypotheses). Fecal Faecalibacterium prausnitzii abundance in the first week of transplantation was positively correlated with future tacrolimus dosing at 1 month (R=0.57, P=0.01) and had a coefficient ± standard error of 1.0 ± 0.6 (P=0.08) after multivariable linear regression. Our novel observations may help further explain inter-individual differences in tacrolimus dosing to achieve therapeutic levels.</abstract><cop>United States</cop><pub>Public Library of Science</pub><pmid>25815766</pmid><doi>10.1371/journal.pone.0122399</doi><oa>free_for_read</oa></addata></record>
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source MEDLINE; DOAJ Directory of Open Access Journals; EZB-FREE-00999 freely available EZB journals; PubMed Central; Free Full-Text Journals in Chemistry; Public Library of Science (PLoS)
subjects Abundance
Adult
Aged
Antibiotics
Bacteria - drug effects
Bioinformatics
Cancer
Composition
Dosage
Dose-Response Relationship, Drug
Drug dosages
Drug metabolism
Enterococcus
Faecalibacterium prausnitzii
Feces
Feces - microbiology
Female
Gastrointestinal Microbiome - genetics
Graft Rejection - drug therapy
Graft Rejection - genetics
Graft Rejection - microbiology
Health aspects
Hospitals
Humans
Hypertension
Infectious diseases
Inflammation
Intestinal microflora
Kidney Transplantation
Kidney transplants
Kidneys
Male
Medicine
Metabolism
Microbiota
Microbiota (Symbiotic organisms)
Microorganisms
Middle Aged
Nephrology
Organ transplant recipients
Physiological aspects
RNA
RNA, Ribosomal, 16S - genetics
rRNA 16S
Standard error
Systematic review
Tacrolimus
Tacrolimus - administration & dosage
Transplant Recipients
Transplantation
Transplants
Transplants & implants
Variance analysis
title Gut microbiota and tacrolimus dosing in kidney transplantation
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