PMID- 25188405 OWN - NLM STAT- MEDLINE DCOM- 20151207 LR - 20211021 IS - 1932-6203 (Electronic) IS - 1932-6203 (Linking) VI - 9 IP - 9 DP - 2014 TI - Exploring the impact of BDNF Val66Met genotype on serotonin transporter and serotonin-1A receptor binding. PG - e106810 LID - 10.1371/journal.pone.0106810 [doi] LID - e106810 AB - BACKGROUND: The brain-derived neurotrophic factor (BDNF) Val66Met polymorphism (rs6265) may impact on the in-vivo binding of important serotonergic structures such as the serotonin transporter (5-HTT) and the serotonin-1A (5-HT1A) receptor. Previous positron emission tomography (PET) studies on the association between Val66Met and 5-HTT and 5-HT1A binding potential (BPND) have demonstrated equivocal results. METHODS: We conducted an imaging genetics study investigating the effect of Val66Met genotype on 5-HTT or 5-HT1A BPND in 92 subjects. Forty-one subjects (25 healthy subjects and 16 depressive patients) underwent genotyping for Val66Met and PET imaging with the 5-HTT specific radioligand [11C]DASB. Additionally, in 51 healthy subjects Val66Met genotypes and 5-HT1A binding with the radioligand [carbonyl-11C]WAY-100635 were ascertained. Voxel-wise and region of interest-based analyses of variance were used to examine the influence of Val66Met on 5-HTT and 5-HT1A BPND. RESULTS: No significant differences of 5-HTT nor 5-HT1A BPND between BDNF Val66Met genotype groups (val/val vs. met-carrier) were detected. There was no interaction between depression and Val66Met genotype status. CONCLUSION: In line with previous data, our work confirms an absent effect of BDNF Val66Met on two major serotonergic structures. These results could suggest that altered protein expression associated with genetic variants, might be compensated in vivo by several levels of unknown feedback mechanisms. In conclusion, Val66Met genotype status is not associated with changes of in-vivo binding of 5-HTT and 5-HT1A receptors in human subjects. FAU - Kraus, Christoph AU - Kraus C AD - Department of Psychiatry and Psychotherapy, Medical University of Vienna, Vienna, Austria. FAU - Baldinger, Pia AU - Baldinger P AD - Department of Psychiatry and Psychotherapy, Medical University of Vienna, Vienna, Austria. FAU - Rami-Mark, Christina AU - Rami-Mark C AD - Department of Biomedical Imaging and Image-guided Therapy, Division of Nuclear Medicine Medical University of Vienna, Vienna, Austria. FAU - Gryglewski, Gregor AU - Gryglewski G FAU - Kranz, Georg S AU - Kranz GS AD - Department of Psychiatry and Psychotherapy, Medical University of Vienna, Vienna, Austria. FAU - Haeusler, Daniela AU - Haeusler D AD - Department of Biomedical Imaging and Image-guided Therapy, Division of Nuclear Medicine Medical University of Vienna, Vienna, Austria. FAU - Hahn, Andreas AU - Hahn A AD - Department of Psychiatry and Psychotherapy, Medical University of Vienna, Vienna, Austria. FAU - Wadsak, Wolfgang AU - Wadsak W AD - Department of Biomedical Imaging and Image-guided Therapy, Division of Nuclear Medicine Medical University of Vienna, Vienna, Austria. FAU - Mitterhauser, Markus AU - Mitterhauser M AD - Department of Biomedical Imaging and Image-guided Therapy, Division of Nuclear Medicine Medical University of Vienna, Vienna, Austria. FAU - Rujescu, Dan AU - Rujescu D AD - Department of Psychiatry, Medical University of Halle, Halle, Germany. FAU - Kasper, Siegfried AU - Kasper S AD - Department of Psychiatry and Psychotherapy, Medical University of Vienna, Vienna, Austria. FAU - Lanzenberger, Rupert AU - Lanzenberger R AD - Department of Psychiatry and Psychotherapy, Medical University of Vienna, Vienna, Austria. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20140904 PL - United States TA - PLoS One JT - PloS one JID - 101285081 RN - 0 (3-amino-4-(2-dimethylaminomethylphenylsulfanyl)benzonitrile) RN - 0 (Aniline Compounds) RN - 0 (Brain-Derived Neurotrophic Factor) RN - 0 (Piperazines) RN - 0 (Pyridines) RN - 0 (Radiopharmaceuticals) RN - 0 (Serotonin Antagonists) RN - 0 (Serotonin Plasma Membrane Transport Proteins) RN - 0 (Sulfides) RN - 112692-38-3 (Receptor, Serotonin, 5-HT1A) RN - 333DO1RDJY (Serotonin) RN - 7171WSG8A2 (BDNF protein, human) RN - 71IH826FEG (N-(2-(4-(2-methoxyphenyl)-1-piperazinyl)ethyl)-N-(2-pyridinyl)cyclohexanecarboxamide) SB - IM EIN - PLoS One. 2014;9(11):e113173. Gryglewsky, Gregor [corrected to Gryglewski, Gregor] MH - Adolescent MH - Adult MH - Aged MH - Amino Acid Substitution MH - Aniline Compounds/pharmacology MH - Brain/diagnostic imaging/drug effects/metabolism/pathology MH - Brain-Derived Neurotrophic Factor/*genetics/metabolism MH - Case-Control Studies MH - Depressive Disorder/diagnostic imaging/*genetics/metabolism/pathology MH - Female MH - Gene Expression MH - Genotype MH - Humans MH - Male MH - Middle Aged MH - Piperazines/pharmacology MH - *Polymorphism, Single Nucleotide MH - Positron-Emission Tomography MH - Protein Binding MH - Pyridines/pharmacology MH - Radiopharmaceuticals/pharmacology MH - Receptor, Serotonin, 5-HT1A/*genetics/metabolism MH - Serotonin/*metabolism MH - Serotonin Antagonists/pharmacology MH - Serotonin Plasma Membrane Transport Proteins/*genetics/metabolism MH - Sulfides/pharmacology PMC - PMC4154779 COIS- Competing Interests: Without any relevance to this work, S. Kasper declares that he has received grant/research support from Eli Lilly, Lundbeck A/S, Bristol-Myers Squibb, Servier, Sepracor, GlaxoSmithKline, Organon, and has served as a consultant or on advisory boards for AstraZeneca, Austrian Sick Found, Bristol-Myers Squibb, GlaxoSmithKline, Eli Lily, Lundbeck A/S, Pfizer, Organon, Sepracor, Janssen, and Novartis, and has served on speakers' bureaus for AstraZeneca, Eli Lilly, Lundbeck A/S, Servier, Sepracor and Janssen. R. Lanzenberger has received travel grants and conference speaker honoraria from AstraZeneca, Lundbeck A/S and Roche Austria GmbH. C. Kraus and P. Baldinger have received travel grants and conference speaker honoraria from Roche. G.S. Kranz received travel grants from Roche and AOP Orphan. W. Wadsak has received research support from Rotem GmbH, ABX, Iason, Advion and Raytest Austria and has served as a consultant/trainer for Bayer and THP. The authors M. Mitterhauser, C. Rami-Mark, and A. Hahn report no financial relationships with commercial interests. EDAT- 2014/09/05 06:00 MHDA- 2015/12/15 06:00 PMCR- 2014/09/04 CRDT- 2014/09/05 06:00 PHST- 2014/04/16 00:00 [received] PHST- 2014/07/28 00:00 [accepted] PHST- 2014/09/05 06:00 [entrez] PHST- 2014/09/05 06:00 [pubmed] PHST- 2015/12/15 06:00 [medline] PHST- 2014/09/04 00:00 [pmc-release] AID - PONE-D-14-17228 [pii] AID - 10.1371/journal.pone.0106810 [doi] PST - epublish SO - PLoS One. 2014 Sep 4;9(9):e106810. doi: 10.1371/journal.pone.0106810. eCollection 2014.