Keyou Li1, Rui Zhou2, Wang Wang Jia3, Zhe Li4, Jiazhou Li5, Pengfei Zhang6, Tiancun Xiao7. 1. College of Life Sciences, Northwest A&F University, Yangling 712100, China. Electronic address: likeyou2675@nwsuaf.edu.cn. 2. College of Life Sciences, Northwest A&F University, Yangling 712100, China. Electronic address: 327862013@qq.com. 3. College of Life Sciences, Northwest A&F University, Yangling 712100, China. Electronic address: 316259853@qq.com. 4. College of Life Sciences, Northwest A&F University, Yangling 712100, China. Electronic address: greatlizhe@vip.qq.com. 5. College of Life Sciences, Northwest A&F University, Yangling 712100, China. Electronic address: 442534389@qq.com. 6. Guangzhou Boxabio Tech Ltd, Guangzhou Hi-Tech Development Zone, Guangzhou, China. Electronic address: PengfeiZhang@163.com. 7. Guangzhou Boxabio Tech Ltd, Guangzhou Hi-Tech Development Zone, Guangzhou, China; Inorganic Chemistry Laboratory, Oxford University, South Parks Road, OX1 3QR Oxford, UK. Electronic address: xiao.tiancun@chem.ox.ac.uk.
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE: Zanthoxylum bungeanum (ZB), a Chinese herb medicine, has been shown to possess a wide range of biological activities including anti-tumor, anti-inflammatory, and anti-microbial activity and has long been used to treat a variety of skin diseases including psoriasis. However, the underlying mechanism of action has not been systematically elucidated. AIM OF THE STUDY: to analyze the chemical composition of the hydro-distilled Zanthoxylum bungeanum essential oil (ZBEO), and to investigate its anti-proliferative activity on HaCaT cells as well as the underlying anti-psoriasis mechanisms. MATERIALS AND METHODS: The chemical composition of ZBEO was analyzed with gas chromatography coupled to mass spectrometry (GC-MS). HaCaT cells was exposed to different dose of ZBEO added in medium prior to morphologic features analysis as well as cell cycle arrest examination with Flow cytometry. Western blot analysis was employed to estimate the expression level of proteins including caspase-8/9/3, PARP, Bax and Bcl-2. RESULTS: Thirty-nine compounds of the ZBEO were identified GC-MS. ZBEO-treated HaCaT cells showed typical apoptotic morphologic features by DAPI staining assay. The ZBEO significantly inhibited proliferation of HaCaT cells in a dose- and time-dependent manner and induced S phase arrest apoptosis in HaCaT cells. Furthermore, western blot analysis revealed that the ZBEO increased expression of cleaved caspase-8/9/3, PARP, and Bax, decreased Bcl-2 levels. CONCLUSION: ZBEO inhibits the proliferation of HaCaT cells, resulting from the induction of cellular apoptosis through both intrinsic and extrinsic pathways. ZBEO is a potential candidate that may be considered for development into an anti-psoriasis drug.
ETHNOPHARMACOLOGICAL RELEVANCE: Zanthoxylum bungeanum (ZB), a Chinese herb medicine, has been shown to possess a wide range of biological activities including anti-tumor, anti-inflammatory, and anti-microbial activity and has long been used to treat a variety of skin diseases including psoriasis. However, the underlying mechanism of action has not been systematically elucidated. AIM OF THE STUDY: to analyze the chemical composition of the hydro-distilled Zanthoxylum bungeanum essential oil (ZBEO), and to investigate its anti-proliferative activity on HaCaT cells as well as the underlying anti-psoriasis mechanisms. MATERIALS AND METHODS: The chemical composition of ZBEO was analyzed with gas chromatography coupled to mass spectrometry (GC-MS). HaCaT cells was exposed to different dose of ZBEO added in medium prior to morphologic features analysis as well as cell cycle arrest examination with Flow cytometry. Western blot analysis was employed to estimate the expression level of proteins including caspase-8/9/3, PARP, Bax and Bcl-2. RESULTS: Thirty-nine compounds of the ZBEO were identified GC-MS. ZBEO-treated HaCaT cells showed typical apoptotic morphologic features by DAPI staining assay. The ZBEO significantly inhibited proliferation of HaCaT cells in a dose- and time-dependent manner and induced S phase arrest apoptosis in HaCaT cells. Furthermore, western blot analysis revealed that the ZBEO increased expression of cleaved caspase-8/9/3, PARP, and Bax, decreased Bcl-2 levels. CONCLUSION: ZBEO inhibits the proliferation of HaCaT cells, resulting from the induction of cellular apoptosis through both intrinsic and extrinsic pathways. ZBEO is a potential candidate that may be considered for development into an anti-psoriasis drug.
Authors: Fernanda B da Silva; Nara O Dos Santos; Renata C Pascon; Marcelo A Vallim; Carlos R Figueiredo; Roberto C Campos Martins; Patricia Sartorelli Journal: Medicines (Basel) Date: 2017-05-19