Alterations of serum levels of BDNF-related miRNAs in patients with depression.
Depression is a serious and potentially life-threatening mental disorder with unknown etiology. Emerging evidence shows that brain-derived neurotrophic factor (BDNF) and microRNAs (miRNAs) play critical roles in the etiology of depression. Here this study was aimed to identify and characterize the r...
| Main Authors: | , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Public Library of Science (PLoS)
2013-01-01
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| Series: | PLoS ONE |
| Online Access: | http://europepmc.org/articles/PMC3660391?pdf=render |
| _version_ | 1811321961075179520 |
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| author | You-Jie Li Mei Xu Zong-Hua Gao Ya-Qi Wang Zhen Yue Yan-Xia Zhang Xin-Xin Li Can Zhang Shu-Yang Xie Ping-Yu Wang |
| author_facet | You-Jie Li Mei Xu Zong-Hua Gao Ya-Qi Wang Zhen Yue Yan-Xia Zhang Xin-Xin Li Can Zhang Shu-Yang Xie Ping-Yu Wang |
| author_sort | You-Jie Li |
| collection | DOAJ |
| description | Depression is a serious and potentially life-threatening mental disorder with unknown etiology. Emerging evidence shows that brain-derived neurotrophic factor (BDNF) and microRNAs (miRNAs) play critical roles in the etiology of depression. Here this study was aimed to identify and characterize the roles of BDNF and its putative regulatory miRNAs in depression. First, we identified that miR-182 may be a putative miRNA that regulates BDNF levels by bioinformatic studies, and characterized the effects of miR-182 on the BDNF levels using cell-based studies, side by side with miR-132 (a known miRNA that regulates BDNF expression). We showed that treatment of miR-132 and miR-182 respectively decreased the BDNF protein levels in a human neuronal cell model, supporting the regulatory roles of miR-132 and miR-182 on the BDNF expression. Furthermore, we explored the roles of miR-132 and miR-182 on the BDNF levels in depression using human subjects by assessing their serum levels. Compared with the healthy controls, patients with depression showed lower serum BDNF levels (via the enzyme-linked immunosorbent assays) and higher serum miR-132 and miR-182 levels (via the real-time PCR). Finally, the Pearson's (or Spearman's) correlation coefficient was calculated to study whether there was a relationship among the Self-Rating Depression Scale score, the serum BDNF levels, and serum BDNF-related miRNA levels. Our results revealed that there was a significant negative correlation between the SDS scores and the serum BDNF levels, and a positive correlation between the SDS scores and miR-132 levels. In addition, we found a reverse relationship between the serum BDNF levels and the miR-132/miR-182 levels in depression. Collectively, we provided evidence supporting that miR-182 is a putative BDNF-regulatory miRNA, and suggested that the serum BDNF and its related miRNAs may be utilized as important biomarkers in the diagnosis or as therapeutic targets of depression. |
| first_indexed | 2024-04-13T13:25:47Z |
| format | Article |
| id | doaj.art-1a6aac20980845c6925ba425977dc082 |
| institution | Directory Open Access Journal |
| issn | 1932-6203 |
| language | English |
| last_indexed | 2024-04-13T13:25:47Z |
| publishDate | 2013-01-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS ONE |
| spelling | doaj.art-1a6aac20980845c6925ba425977dc0822022-12-22T02:45:07ZengPublic Library of Science (PLoS)PLoS ONE1932-62032013-01-0185e6364810.1371/journal.pone.0063648Alterations of serum levels of BDNF-related miRNAs in patients with depression.You-Jie LiMei XuZong-Hua GaoYa-Qi WangZhen YueYan-Xia ZhangXin-Xin LiCan ZhangShu-Yang XiePing-Yu WangDepression is a serious and potentially life-threatening mental disorder with unknown etiology. Emerging evidence shows that brain-derived neurotrophic factor (BDNF) and microRNAs (miRNAs) play critical roles in the etiology of depression. Here this study was aimed to identify and characterize the roles of BDNF and its putative regulatory miRNAs in depression. First, we identified that miR-182 may be a putative miRNA that regulates BDNF levels by bioinformatic studies, and characterized the effects of miR-182 on the BDNF levels using cell-based studies, side by side with miR-132 (a known miRNA that regulates BDNF expression). We showed that treatment of miR-132 and miR-182 respectively decreased the BDNF protein levels in a human neuronal cell model, supporting the regulatory roles of miR-132 and miR-182 on the BDNF expression. Furthermore, we explored the roles of miR-132 and miR-182 on the BDNF levels in depression using human subjects by assessing their serum levels. Compared with the healthy controls, patients with depression showed lower serum BDNF levels (via the enzyme-linked immunosorbent assays) and higher serum miR-132 and miR-182 levels (via the real-time PCR). Finally, the Pearson's (or Spearman's) correlation coefficient was calculated to study whether there was a relationship among the Self-Rating Depression Scale score, the serum BDNF levels, and serum BDNF-related miRNA levels. Our results revealed that there was a significant negative correlation between the SDS scores and the serum BDNF levels, and a positive correlation between the SDS scores and miR-132 levels. In addition, we found a reverse relationship between the serum BDNF levels and the miR-132/miR-182 levels in depression. Collectively, we provided evidence supporting that miR-182 is a putative BDNF-regulatory miRNA, and suggested that the serum BDNF and its related miRNAs may be utilized as important biomarkers in the diagnosis or as therapeutic targets of depression.http://europepmc.org/articles/PMC3660391?pdf=render |
| spellingShingle | You-Jie Li Mei Xu Zong-Hua Gao Ya-Qi Wang Zhen Yue Yan-Xia Zhang Xin-Xin Li Can Zhang Shu-Yang Xie Ping-Yu Wang Alterations of serum levels of BDNF-related miRNAs in patients with depression. PLoS ONE |
| title | Alterations of serum levels of BDNF-related miRNAs in patients with depression. |
| title_full | Alterations of serum levels of BDNF-related miRNAs in patients with depression. |
| title_fullStr | Alterations of serum levels of BDNF-related miRNAs in patients with depression. |
| title_full_unstemmed | Alterations of serum levels of BDNF-related miRNAs in patients with depression. |
| title_short | Alterations of serum levels of BDNF-related miRNAs in patients with depression. |
| title_sort | alterations of serum levels of bdnf related mirnas in patients with depression |
| url | http://europepmc.org/articles/PMC3660391?pdf=render |
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