Volume 127, Issue 5 pp. 380-388
ORIGINAL ARTICLE

Antidepressant effects of 3-(3,4-methylenedioxy-5-trifluoromethyl phenyl)-2E-propenoic acid isobutyl amide involve TSPO-mediated mitophagy signalling pathway

Qiang Wei

Qiang Wei

Medical College, Tibet University, Lhasa, China

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Wangyi Zhou

Wangyi Zhou

Pharmacology and Toxicology Research Centre, Tasly Institute, Tasly Holding Group Co., Ltd., Tianjin, China

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Ji Zheng

Ji Zheng

Department of Pharmacology, Institute of Basic Medical Sciences, Neuroscience Center, Chinese Academy of Medical Sciences & School of Basic Medicine, Peking Union Medical College, Beijing, China

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Dongmei Li

Dongmei Li

Department of Pharmacology, Institute of Basic Medical Sciences, Neuroscience Center, Chinese Academy of Medical Sciences & School of Basic Medicine, Peking Union Medical College, Beijing, China

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Mingyang Wang

Mingyang Wang

Department of Pharmacology, Institute of Basic Medical Sciences, Neuroscience Center, Chinese Academy of Medical Sciences & School of Basic Medicine, Peking Union Medical College, Beijing, China

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Lu Feng

Lu Feng

Department of Pharmacology, Institute of Basic Medical Sciences, Neuroscience Center, Chinese Academy of Medical Sciences & School of Basic Medicine, Peking Union Medical College, Beijing, China

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Wei Huang

Wei Huang

Department of Pharmacology, Institute of Basic Medical Sciences, Neuroscience Center, Chinese Academy of Medical Sciences & School of Basic Medicine, Peking Union Medical College, Beijing, China

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Nan Yang

Nan Yang

Department of Pharmacology, Institute of Basic Medical Sciences, Neuroscience Center, Chinese Academy of Medical Sciences & School of Basic Medicine, Peking Union Medical College, Beijing, China

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Min Han

Min Han

Pharmacology and Toxicology Research Centre, Tasly Institute, Tasly Holding Group Co., Ltd., Tianjin, China

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Xiaohui Ma

Corresponding Author

Xiaohui Ma

Pharmacology and Toxicology Research Centre, Tasly Institute, Tasly Holding Group Co., Ltd., Tianjin, China

Correspondence

Yanyong Liu, Medical College, Tibet University, Tibet Autonomous Region, Lhasa, 850000, China; Department of Pharmacology, Institute of Basic Medical Sciences, Center of Neuroscience, Chinese Academy of Medical Sciences & School of Basic Medicine, Peking Union Medical College, 5 Dong Dan San Tiao, Beijing 100005, China.

Email: [email protected]

Xiaohui Ma, Pharmacology and Toxicology Research Centre, Tasly Institute, Tasly Holding Group Co., Ltd., 2 East Pu Ji He Road, Beichen District, Tianjin 300410, China.

Email: [email protected]

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Yanyong Liu

Corresponding Author

Yanyong Liu

Medical College, Tibet University, Lhasa, China

Department of Pharmacology, Institute of Basic Medical Sciences, Neuroscience Center, Chinese Academy of Medical Sciences & School of Basic Medicine, Peking Union Medical College, Beijing, China

Correspondence

Yanyong Liu, Medical College, Tibet University, Tibet Autonomous Region, Lhasa, 850000, China; Department of Pharmacology, Institute of Basic Medical Sciences, Center of Neuroscience, Chinese Academy of Medical Sciences & School of Basic Medicine, Peking Union Medical College, 5 Dong Dan San Tiao, Beijing 100005, China.

Email: [email protected]

Xiaohui Ma, Pharmacology and Toxicology Research Centre, Tasly Institute, Tasly Holding Group Co., Ltd., 2 East Pu Ji He Road, Beichen District, Tianjin 300410, China.

Email: [email protected]

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First published: 08 June 2020
Citations: 13

Wei and Zhou are contributed equally to this work.

Funding information

This study was supported by Natural Science Foundation of China (81050025) and Foundation from Tianjin Tasly Pharmaceutical Co., Ltd.

Abstract

Piper laetispicum C. DC is one of the Chinese herbal medicines used for alleviating depressive disorders. G11-5 [3-(3, 4-methylenedioxy-5-trifluoromethyl phenyl)-2E-propenoic acid isobutyl amide] is synthesized based on the chemical structure of an active integrant of Piper laetispicum C. DC. The present study assessed the antidepressant effect of G11-5 and investigated the underlying mechanism with learned helplessness (LH) and social defeat stress (SDS) mice model of depression. In the LH model, mice were exposed to 60 inescapable electric shocks once a day for three consecutive days followed by 2-week drug administration and helpless behaviour assessment. In the SDS model, mice were subjected to repeated social defeat by an aggressive CD-1 mouse once a day for consecutive 10 days. Following oral administration for 2 weeks, the mice were subjected to a series of behavioural tests including social interaction test. G11-5 significantly decreased the number of escape failures induced by LH paradigm, meanwhile increased the social interaction ratio and shortened the immobility time in forced swimming test for the SDS-exposed mice, suggesting remarkable antidepressant effect. Moreover, G11-5 ameliorated the changes in mitophagy-related proteins induced by two stress exposures and restored retrograde axonal transport and neurotransmitter release. Our findings suggested that G11-5 exhibited an obvious antidepressant through TSPO-mediated mitophagy pathway.

CONFLICT OF INTEREST

The authors declare that there are no conflicts of interest.

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