期刊
NATURE COMMUNICATIONS
卷 9, 期 -, 页码 -出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/s41467-017-02794-5
关键词
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资金
- National Center for complementary and Integrative Health (NCCIH) [P50 AT008661-01]
- Office of Dietary Supplements (ODS) [NIH R01 MH090264, NIH R01 MH104559, NSF81200862]
- Altschul Foundation
- National Center for Complementary & Integrative Health [P50AT008661] Funding Source: NIH RePORTER
- NATIONAL INSTITUTE OF MENTAL HEALTH [P50MH096890, R01MH090264, R21MH112081, R01MH104559] Funding Source: NIH RePORTER
- Veterans Affairs [IK6BX003785] Funding Source: NIH RePORTER
Major depressive disorder is associated with abnormalities in the brain and the immune system. Chronic stress in animals showed that epigenetic and inflammatory mechanisms play important roles in mediating resilience and susceptibility to depression. Here, through a high-throughput screening, we identify two phytochemicals, dihydrocaffeic acid (DHCA) and malvidin-3'-O-glucoside (Mal-gluc) that are effective in promoting resilience against stress by modulating brain synaptic plasticity and peripheral inflammation. DHCA/Mal-gluc also significantly reduces depression-like phenotypes in a mouse model of increased systemic inflammation induced by transplantation of hematopoietic progenitor cells from stress-susceptible mice. DHCA reduces pro-inflammatory interleukin 6 (IL-6) generations by inhibiting DNA methylation at the CpG-rich IL-6 sequences introns 1 and 3, while Mal-gluc modulates synaptic plasticity by increasing histone acetylation of the regulatory sequences of the Rac1 gene. Peripheral inflammation and synaptic maladaptation are in line with newly hypothesized clinical intervention targets for depression that are not addressed by currently available antidepressants.
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