PMID- 31004918 OWN - NLM STAT- MEDLINE DCOM- 20200625 LR - 20200625 IS - 1879-1379 (Electronic) IS - 0022-3956 (Linking) VI - 114 DP - 2019 Jul TI - Exploring the role of BDNF DNA methylation and hydroxymethylation in patients with obsessive compulsive disorder. PG - 17-23 LID - S0022-3956(18)31412-2 [pii] LID - 10.1016/j.jpsychires.2019.04.006 [doi] AB - Obsessive-compulsive disorder (OCD) is a clinically heterogeneous neuropsychiatric condition associated with profound disability, whose susceptibility, stemming from genetic and environmental factors that intersect with each other, is still under investigation. In this perspective, we sought to explore the transcriptional regulation of Brain Derived Neurotrophic Factor (BDNF), a promising candidate biomarker in both development and etiology of different neuropsychiatric conditions, in peripheral blood mononuclear cells from OCD patients and healthy controls. In particular, we focused on BDNF gene expression and interrogated in depth DNA methylation and hydroxymethylation at gene promoters (exons I, IV and IX) in a sample of OCD patients attending a tertiary OCD Clinic to receive guidelines-recommended treatment, and matched controls. Our preliminary data showed a significant increase in BDNF gene expression and a significant correlation with changes in the two epigenetic modifications selectively at promoter exon I, with no changes in the other promoters under study. We can conclude that transcriptional regulation of BDNF in OCD engages epigenetic mechanisms, and can suggest that this is likely evoked by the long-term pharmacotherapy. It is important to underline that many different factors need to be taken into account (i.e. age, sex, duration of illness, treatment), and thus further studies are mandatory to investigate their role in the epigenetic regulation of BDNF gene. Of note, we provide unprecedented evidence for the importance of analyzing 5-hydroxymethylcytosine levels to correctly evaluate 5-methylcytosine changes. CI - Copyright (c) 2019 Elsevier Ltd. All rights reserved. FAU - D'Addario, Claudio AU - D'Addario C AD - University of Teramo, Bioscience, Teramo, Italy; Karolinska Institutet, Department of Clinical Neuroscience, Stockholm, Sweden. Electronic address: cdaddario@unite.it. FAU - Bellia, Fabio AU - Bellia F AD - University of Teramo, Bioscience, Teramo, Italy. FAU - Benatti, Beatrice AU - Benatti B AD - University of Milan, Department of Biomedical and Clinical Sciences Luigi Sacco, Milano, Italy. FAU - Grancini, Benedetta AU - Grancini B AD - University of Milan, Department of Biomedical and Clinical Sciences Luigi Sacco, Milano, Italy. FAU - Vismara, Matteo AU - Vismara M AD - University of Milan, Department of Biomedical and Clinical Sciences Luigi Sacco, Milano, Italy. FAU - Pucci, Mariangela AU - Pucci M AD - University of Teramo, Bioscience, Teramo, Italy. FAU - De Carlo, Vera AU - De Carlo V AD - University of Milan, Department of Biomedical and Clinical Sciences Luigi Sacco, Milano, Italy. FAU - Vigano, Caterina AU - Vigano C AD - University of Milan, Department of Biomedical and Clinical Sciences Luigi Sacco, Milano, Italy. FAU - Galimberti, Daniela AU - Galimberti D AD - University of Milan, Dino Ferrari Center, Milan, Italy; Fondazione IRCCS Ca' Granda, Ospedale Policlinico, Neurodegenerative Diseases Unit, Milan, Italy. FAU - Fenoglio, Chiara AU - Fenoglio C AD - University of Milan, Dino Ferrari Center, Milan, Italy; Fondazione IRCCS Ca' Granda, Ospedale Policlinico, Neurodegenerative Diseases Unit, Milan, Italy. FAU - Scarpini, Elio AU - Scarpini E AD - University of Milan, Dino Ferrari Center, Milan, Italy; Fondazione IRCCS Ca' Granda, Ospedale Policlinico, Neurodegenerative Diseases Unit, Milan, Italy. FAU - Maccarrone, Mauro AU - Maccarrone M AD - Department of Medicine, Campus Bio-Medico University of Rome, Rome, Italy; Fondazione IRCCS Santa Lucia, Unit of Lipid Neurochemistry, Rome, Italy. FAU - Dell'Osso, Bernardo AU - Dell'Osso B AD - University of Milan, Department of Biomedical and Clinical Sciences Luigi Sacco, Milano, Italy; CRC "Aldo Ravelli", University of Milan, Milano, Italy; Department of Psychiatry and Behavioral Sciences, Stanford University, CA, USA. Electronic address: bernardo.dellosso@unimi.it. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20190406 PL - England TA - J Psychiatr Res JT - Journal of psychiatric research JID - 0376331 RN - 0 (Brain-Derived Neurotrophic Factor) RN - 7171WSG8A2 (BDNF protein, human) SB - IM MH - Adult MH - Brain-Derived Neurotrophic Factor/*genetics/metabolism MH - *DNA Methylation MH - Female MH - Gene Expression Regulation MH - Humans MH - Male MH - Obsessive-Compulsive Disorder/*genetics/metabolism MH - Polymorphism, Single Nucleotide/genetics MH - Young Adult OTO - NOTNLM OT - BDNF OT - DNA hydroxymethylation OT - DNA methylation OT - Obsessive compulsive disorder EDAT- 2019/04/21 06:00 MHDA- 2020/06/26 06:00 CRDT- 2019/04/21 06:00 PHST- 2018/12/03 00:00 [received] PHST- 2019/03/20 00:00 [revised] PHST- 2019/04/05 00:00 [accepted] PHST- 2019/04/21 06:00 [pubmed] PHST- 2020/06/26 06:00 [medline] PHST- 2019/04/21 06:00 [entrez] AID - S0022-3956(18)31412-2 [pii] AID - 10.1016/j.jpsychires.2019.04.006 [doi] PST - ppublish SO - J Psychiatr Res. 2019 Jul;114:17-23. doi: 10.1016/j.jpsychires.2019.04.006. Epub 2019 Apr 6.