Biological evaluation of linalool on the function of blood vessels

Liang,Yunyu; Zhong,Yan; Li,Xinmei; Xiao,Yingying; Wu,Yu; Xie,Pingchang

doi:10.3892/mmr.2021.12514

Biological evaluation of linalool on the function of blood vessels

Authors:
- Yunyu Liang
- Yan Zhong
- Xinmei Li
- Yingying Xiao
- Yu Wu
- Pingchang Xie
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Affiliations: Department of Geriatrics, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510000, P.R. China, Department of Emergency, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510000, P.R. China
Published online on: October 28, 2021 https://doi.org/10.3892/mmr.2021.12514
Article Number: 874
Copyright: © Liang et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

Long‑term hypertension leads to alterations in the structure and function of blood vessels, and abnormal proliferation and migration of vascular smooth muscle cells (VSMCs) are important factors for these changes. Linalool is a natural compound extracted from plants. The present study aimed to explore the role and underlying mechanism of linalool in the physiological behavior of VSMCs. Angiotensin II (Ang II) was utilized to treat VSMCs, and MTT and western blotting assays were then employed to detect the effect of linalool on the induced proliferation and migration of VSMCs. The target gene of linalool was predicted by the SwissTargetPrediction website, and its expression level in VSMCs was determined using reverse transcription‑quantitative PCR and western blotting. Next, the role of the target gene in the physiological behavior of VSMCs treated with linalool was examined, and the signaling pathway was explored. The results revealed that the proliferation and migration of VSMCs treated with Ang II were significantly promoted, and linalool could alleviate these effects in a dose‑dependent manner. Cholinergic receptor muscarinic 3 (CHRM3), as a predicted target, was found to be highly expressed in Ang II‑induced VSMCs, and CHRM3 overexpression could prevent the inhibitory effect of linalool on cell proliferation and migration. In addition, its overexpression caused an increase in the expression of proteins related to the MAPK signaling pathway. In conclusion, linalool inhibited the proliferation and migration of Ang II‑induced VSMCs and blocked the MAPK signaling pathway by downregulating CHRM3.

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