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International Journal of Neuropsychopharmacology

International Journal of Neuropsychopharmacology

IF: 4.5
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Cucurbitacin B exerts significant antidepressant-like effects in a chronic unpredictable mild stress model of depression: Involvement of the hippocampal BDNF-TrkB system

Published:19 October 2023 DOI: 10.1093/ijnp/pyad052 PMID: 37603290
Jian-Bin Ge,?Bo Jiang,?Tian-Shun Shi,?Wei-Yu Li,?Wei-Jia Chen,?Bao-Lun Zhu,?Zheng-Hong Qin

Abstract

Background: Although depression has been a serious neuropsychiatric disorder worldwide, current antidepressants used in clinical practice have various weaknesses, including delayed onset and low rates of efficacy. Recently, the development of new antidepressants from natural herbal medicine has become one of the important research hotspots. Cucurbitacin B is a natural compound widely distributed in the Cucurbitaceae and Cruciferae families and has many pharmacological activities. The present study aimed to investigate whether cucurbitacin B possess antidepressant-like effects in mice.

Methods: The antidepressant-like effects of cucurbitacin B on mice behaviors were explored using the forced swim test, tail suspension test, open field test, sucrose preference test, and a chronic unpredictable mild stress model of depression together. Then, western blotting and immunofluorescence were used to examine the effects of cucurbitacin B on the brain-derived neurotrophic factor (BDNF)-tyrosine kinase B (TrkB) signaling cascade and neurogenesis in the hippocampus of mice. Furthermore, BDNF-short hairpin RNA, K252a, and p-chlorophenylalanine methyl ester were adopted together to determine the antidepressant mechanism of cucurbitacin B.

Results: It was found that administration of cucurbitacin B indeed produced notable antidepressant-like effects in mice, which were accompanied with significant promotion in both the hippocampal BDNF-TrkB pathway and neurogenesis. The antidepressant mechanism of cucurbitacin B involves the hippocampal BDNF-TrkB system but not the serotonin system.

Conclusions: Cucurbitacin B has the potential to be a novel antidepressant candidate.

Substances (19)

Materials Related products
Procduct Name CAS Molecular Formula Supplier Price
4-Chlorophenylacetic acid 1878-66-6 C8H7ClO2 566 suppliers $5.00-$1920.00
4-Chlorophenylacetic acid 1878-66-6 C8H7ClO2 566 suppliers $5.00-$1920.00
4-Chlorophenylacetic acid 1878-66-6 C8H7ClO2 566 suppliers $5.00-$1920.00
4-Chlorophenylacetic acid 1878-66-6 C8H7ClO2 566 suppliers $5.00-$1920.00
CUCURBITACIN B 6199-67-3 C32H46O8 316 suppliers $35.00-$1863.80
CUCURBITACIN B 6199-67-3 C32H46O8 316 suppliers $35.00-$1863.80
CUCURBITACIN B 6199-67-3 C32H46O8 316 suppliers $35.00-$1863.80
CUCURBITACIN B 6199-67-3 C32H46O8 316 suppliers $35.00-$1863.80
Fluoxetine 54910-89-3 C17H18F3NO 217 suppliers Inquiry
Fluoxetine 54910-89-3 C17H18F3NO 217 suppliers Inquiry

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