Abstract
Stress is an overwhelming problem associated with neuronal damage leading to anxiety and depression. The compound 3, 4, 5-trimethoxycinnamic acid (TMCA) has shown anti-stress effects; however, its derivatives remained unknown for their anxiolytic properties. Here, therefore, we investigated derivatives of TMCA (dTMCA) for their anxiolytic effects using immobilization and electric shock-induced stress in rats. Derivatives of TMCA ameliorated anxiety in mice and rats revealed by extended period of time spent in the open arms of elevated plus maze. Stress-mediated repression of tyrosine hydroxylase (TH) protein expression in the amygdala regions of rat brain and dopamine levels in the PC12 cells was restored by two selected derivatives (TMCA#5 and TMCA#9). Unlike TH expression, stress-induced protein expression of phospho-extracellular signal-regulated kinase (pERK) was unaffected by both derivatives in rats. Given the preferential inhibitory activity of dTMCA on dopamine and serotonin receptors, serotonergic road map of cellular signaling could be their target for anxiolytic effects. Thus, dTMCA would be promising agents to prevent neuronal damage associated with rampant stressful conditions.
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The datasets used and/or analyzed during the current study are available from the corresponding author on reasonable request.
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This work was supported by the Ministry of Food and Drug Safety (20182MFDS422, 20182MFDS425, 22214MFDS252), a National Research Foundation of Korea (NRF) grant funded by the Korea government, Ministry of Science (MEST; MRC 2010-0029355) (MISIT; No. MRC, 2017R1A5A2015541), and “Regional Innovation Strategy (RIS)” through the NRF funded by the Ministry of Education (MOE) (2021RIS-001).
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Material preparation, data collection, analysis, and writing — review and editing were performed by Eunchong Hong. Material preparation, data collection, analysis, and writhing — original draft were performed by Hyun Kyu Min. Data curation, visualization, writhing — original draft, and writing — review and editing were performed by Heena Lim and Sun Mi Gu. Material preparation, data collection, and analysis were performed by Abdulaziz Jabborov, Taddesse Yayeh, Mijin Kim, Woo-Kyu Park, and Jae-Chul Jung. Conceptualization, data curation, project administration, supervision, resources, and writing — review and editing were performed by Jaesuk Yun and Seikwan Oh. All authors proofread the final manuscript.
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The study was carried out in strict accordance with the recommendations in the Guide for the Care and Use of Laboratory Animals of the National Institutes of Health. All experiments based on the guidelines approved by the Animal Care and Committee of Ewha Womans University and Chungbuk National University (CBNUA-436-12-02).
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Hong, E., Min, H.K., Lim, H. et al. Derivatives of 3, 4, 5-Trimethoxycinnamic Acid Ameliorate Stress-Induced Anxiety in Mice and Rats. Mol Neurobiol 60, 2737–2748 (2023). https://doi.org/10.1007/s12035-023-03240-y
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DOI: https://doi.org/10.1007/s12035-023-03240-y