PMID- 30986693 OWN - NLM STAT- MEDLINE DCOM- 20200701 LR - 20200701 IS - 1879-1379 (Electronic) IS - 0022-3956 (Linking) VI - 113 DP - 2019 Jun TI - Cerebrospinal fluid BDNF pro-peptide levels in major depressive disorder and schizophrenia. PG - 190-198 LID - S0022-3956(18)31219-6 [pii] LID - 10.1016/j.jpsychires.2019.03.024 [doi] AB - The role of brain-derived neurotrophic factor (BDNF) and its related molecules has been extensively studied in the context of psychiatric disorders. In the present study, we focused on the newly identified BDNF pro-peptide, which is generated together with mature BDNF by proteolytic processing of their precursor, proBDNF. Here, we report, for the first time, that BDNF pro-peptide is present in human cerebrospinal fluid (CSF) and quantifiable by western blotting. We measured CSF BDNF pro-peptide levels in 27 patients with schizophrenia, 18 patients with major depressive disorder (MDD), and 27 healthy controls matched for age, sex, and ethnicity (Japanese). The ratio of the BDNF pro-peptide level to the total protein level in MDD patients was significantly lower than that in controls (Kruskal-Wallis with Dunn's multiple comparisons test; p = 0.046). When men and women were examined separately, males with MDD had a significantly lower BDNF pro-peptide/protein ratio than male controls (p = 0.047); this difference was not found in female subjects. The ratio tended to be lower in male schizophrenia patients (p = 0.10). Although we tried to measure the levels of mature BDNF in CSF, they were below the limit of detection of the ELISA and multiple analyte profiling technology. Taken together, the results suggest that reduced CSF BDNF pro-peptide levels are associated with MDD, particularly in males. Further studies involving a larger sample size are warranted. CI - Copyright (c) 2019. Published by Elsevier Ltd. FAU - Mizui, Toshiyuki AU - Mizui T AD - Biomedical Research Institute (BMD), National Institute of Advanced Industrial Science and Technology (AIST), Osaka 563-8577, Japan. FAU - Hattori, Kotaro AU - Hattori K AD - Department of Mental Disorder Research, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Tokyo, 187-8502, Japan; Medical Genome Center, National Center of Neurology and Psychiatry, Tokyo, 187-8502, Japan. FAU - Ishiwata, Sayuri AU - Ishiwata S AD - Department of Mental Disorder Research, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Tokyo, 187-8502, Japan. FAU - Hidese, Shinsuke AU - Hidese S AD - Department of Mental Disorder Research, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Tokyo, 187-8502, Japan. FAU - Yoshida, Sumiko AU - Yoshida S AD - Medical Genome Center, National Center of Neurology and Psychiatry, Tokyo, 187-8502, Japan; National Center of Neurology and Psychiatry Hospital, Tokyo, 187-8502, Japan. FAU - Kunugi, Hiroshi AU - Kunugi H AD - Department of Mental Disorder Research, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Tokyo, 187-8502, Japan. Electronic address: hkunugi@ncnp.go.jp. FAU - Kojima, Masami AU - Kojima M AD - Biomedical Research Institute (BMD), National Institute of Advanced Industrial Science and Technology (AIST), Osaka 563-8577, Japan; Graduate School of Frontier Bioscience, Osaka University, Suita 565-0871, Japan. Electronic address: m-kojima@aist.go. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20190326 PL - England TA - J Psychiatr Res JT - Journal of psychiatric research JID - 0376331 RN - 0 (Brain-Derived Neurotrophic Factor) SB - IM MH - Adult MH - Brain-Derived Neurotrophic Factor/*cerebrospinal fluid MH - Depressive Disorder, Major/*cerebrospinal fluid MH - Female MH - Humans MH - Male MH - Middle Aged MH - Schizophrenia/*cerebrospinal fluid OTO - NOTNLM OT - BDNF OT - BDNF pro-peptide OT - Human cerebrospinal fluid OT - Major depressive disorder OT - Schizophrenia EDAT- 2019/04/16 06:00 MHDA- 2020/07/02 06:00 CRDT- 2019/04/16 06:00 PHST- 2018/10/10 00:00 [received] PHST- 2019/03/21 00:00 [revised] PHST- 2019/03/22 00:00 [accepted] PHST- 2019/04/16 06:00 [pubmed] PHST- 2020/07/02 06:00 [medline] PHST- 2019/04/16 06:00 [entrez] AID - S0022-3956(18)31219-6 [pii] AID - 10.1016/j.jpsychires.2019.03.024 [doi] PST - ppublish SO - J Psychiatr Res. 2019 Jun;113:190-198. doi: 10.1016/j.jpsychires.2019.03.024. Epub 2019 Mar 26.