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Papies J, Emanuel J, Heinemann N, Kulić Ž, Schroeder S, Tenner B, Lehner MD, Seifert G, Müller MA. Antiviral and Immunomodulatory Effects of Pelargonium sidoides DC. Root Extract EPs® 7630 in SARS-CoV-2-Infected Human Lung Cells. Front Pharmacol 2021; 12:757666. [PMID: 34759825 PMCID: PMC8573200 DOI: 10.3389/fphar.2021.757666] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Accepted: 10/04/2021] [Indexed: 12/15/2022] Open
Abstract
Treatment options for COVID-19 are currently limited. Drugs reducing both viral loads and SARS-CoV-2-induced inflammatory responses would be ideal candidates for COVID-19 therapeutics. Previous in vitro and clinical studies suggest that the proprietary Pelargonium sidoides DC. root extract EPs 7630 has antiviral and immunomodulatory properties, limiting symptom severity and disease duration of infections with several upper respiratory viruses. Here we assessed if EPs 7630 affects SARS-CoV-2 propagation and the innate immune response in the human lung cell line Calu-3. In direct comparison to other highly pathogenic CoV (SARS-CoV, MERS-CoV), SARS-CoV-2 growth was most efficiently inhibited at a non-toxic concentration with an IC50 of 1.61 μg/ml. Particularly, the cellular entry step of SARS-CoV-2 was significantly reduced by EPs 7630 pretreatment (10-100 μg/ml) as shown by spike protein-carrying pseudovirus particles and infectious SARS-CoV-2. Using sequential ultrafiltration, EPs 7630 was separated into fractions containing either prodelphinidins of different oligomerization degrees or small molecule constituents like benzopyranones and purine derivatives. Prodelphinidins with a low oligomerization degree and small molecule constituents were most efficient in inhibiting SARS-CoV-2 entry already at 10 μg/ml and had comparable effects on immune gene regulation as EPs 7630. Downregulation of multiple pro-inflammatory genes (CCL5, IL6, IL1B) was accompanied by upregulation of anti-inflammatory TNFAIP3 at 48 h post-infection. At high concentrations (100 μg/ml) moderately oligomerized prodelphinidins reduced SARS-CoV-2 propagation most efficiently and exhibited pronounced immune gene modulation. Assessment of cytokine secretion in EPs 7630-treated and SARS-CoV-2-coinfected Calu-3 cells showed that pro-inflammatory cytokines IL-1β and IL-6 were elevated whereas multiple other COVID-19-associated cytokines (IL-8, IL-13, TNF-α), chemokines (CXCL9, CXCL10), and growth factors (PDGF, VEGF-A, CD40L) were significantly reduced by EPs 7630. SARS-CoV-2 entry inhibition and the differential immunomodulatory functions of EPs 7630 against SARS-CoV-2 encourage further in vivo studies.
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Affiliation(s)
- Jan Papies
- Institute of Virology, Charité–Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin, Germany
- German Center for Infection Research (DZIF), Partner Site Charité, Berlin, Germany
| | - Jackson Emanuel
- Institute of Virology, Charité–Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin, Germany
- German Center for Infection Research (DZIF), Partner Site Charité, Berlin, Germany
| | - Nicolas Heinemann
- Institute of Virology, Charité–Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin, Germany
- German Center for Infection Research (DZIF), Partner Site Charité, Berlin, Germany
| | - Žarko Kulić
- Preclinical R & D, Dr. Willmar Schwabe GmbH & Co. KG, Karlsruhe, Germany
| | - Simon Schroeder
- Institute of Virology, Charité–Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin, Germany
- German Center for Infection Research (DZIF), Partner Site Charité, Berlin, Germany
| | - Beate Tenner
- Institute of Virology, Charité–Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin, Germany
| | - Martin D. Lehner
- Preclinical R & D, Dr. Willmar Schwabe GmbH & Co. KG, Karlsruhe, Germany
| | - Georg Seifert
- Department of Paediatric Oncology/Haematology, Otto-Heubner Centre for Paediatric and Adolescent Medicine (OHC), Charité–Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
- Department of Paediatrics, Faculty of Medicine, University of São Paulo, São Paulo, Brazil
| | - Marcel A. Müller
- Institute of Virology, Charité–Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin, Germany
- German Center for Infection Research (DZIF), Partner Site Charité, Berlin, Germany
- Martsinovsky Institute of Medical Parasitology, Tropical and Vector Borne Diseases, Sechenov University, Moscow, Russia
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Lan Y, Li X, Liu Y, He Y, Hao C, Wang H, Jin L, Zhang G, Zhang S, Zhou A, Zhang L. Pingyangmycin inhibits glycosaminoglycan sulphation in both cancer cells and tumour tissues. J Cell Mol Med 2020; 24:3419-3430. [PMID: 32068946 PMCID: PMC7131950 DOI: 10.1111/jcmm.15017] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Revised: 01/05/2020] [Accepted: 01/10/2020] [Indexed: 12/18/2022] Open
Abstract
Pingyangmycin is a clinically used anticancer drug and induces lung fibrosis in certain cancer patients. We previously reported that the negatively charged cell surface glycosaminoglycans are involved in the cellular uptake of the positively charged pingyangmycin. However, it is unknown if pingyangmycin affects glycosaminoglycan structures. Seven cell lines and a Lewis lung carcinoma‐injected C57BL/6 mouse model were used to understand the cytotoxicity of pingyangmycin and its effect on glycosaminoglycan biosynthesis. Stable isotope labelling coupled with LC/MS method was used to quantify glycosaminoglycan disaccharide compositions from pingyangmycin‐treated and untreated cell and tumour samples. Pingyangmycin reduced both chondroitin sulphate and heparan sulphate sulphation in cancer cells and in tumours. The effect was persistent at different pingyangmycin concentrations and at different exposure times. Moreover, the cytotoxicity of pingyangmycin was decreased in the presence of soluble glycosaminoglycans, in the glycosaminoglycan‐deficient cell line CHO745, and in the presence of chlorate. A flow cytometry‐based cell surface FGF/FGFR/glycosaminoglycan binding assay also showed that pingyangmycin changed cell surface glycosaminoglycan structures. Changes in the structures of glycosaminoglycans may be related to fibrosis induced by pingyangmycin in certain cancer patients.
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Affiliation(s)
- Ying Lan
- Systems Biology & Medicine Center for Complex Diseases, Affiliated Hospital of Qingdao University, Qingdao, China.,College of Food Science and Engineering, Northwest A&F University, Yangling, China
| | - Xiulian Li
- Systems Biology & Medicine Center for Complex Diseases, Affiliated Hospital of Qingdao University, Qingdao, China
| | - Yong Liu
- Systems Biology & Medicine Center for Complex Diseases, Affiliated Hospital of Qingdao University, Qingdao, China
| | - Yanli He
- Systems Biology & Medicine Center for Complex Diseases, Affiliated Hospital of Qingdao University, Qingdao, China
| | - Cui Hao
- Systems Biology & Medicine Center for Complex Diseases, Affiliated Hospital of Qingdao University, Qingdao, China
| | - Hua Wang
- Systems Biology & Medicine Center for Complex Diseases, Affiliated Hospital of Qingdao University, Qingdao, China
| | - Liying Jin
- Systems Biology & Medicine Center for Complex Diseases, Affiliated Hospital of Qingdao University, Qingdao, China
| | - Guoqing Zhang
- Systems Biology & Medicine Center for Complex Diseases, Affiliated Hospital of Qingdao University, Qingdao, China
| | - Shufeng Zhang
- College of Chemistry, Tianjin Normal University, Tianjin, China
| | - Aimin Zhou
- Clinical Chemistry Program, Department of Chemistry, Cleveland State University, Cleveland, OH, USA
| | - Lijuan Zhang
- Systems Biology & Medicine Center for Complex Diseases, Affiliated Hospital of Qingdao University, Qingdao, China
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Flavone-based arylamides as potential anticancers: Design, synthesis and in vitro cell-based/cell-free evaluations. Eur J Med Chem 2020; 187:111965. [DOI: 10.1016/j.ejmech.2019.111965] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Revised: 12/10/2019] [Accepted: 12/10/2019] [Indexed: 12/24/2022]
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Zhang H, Tian G, Zhao C, Han Y, DiMarco-Crook C, Lu C, Bao Y, Li C, Xiao H, Zheng J. Characterization of polymethoxyflavone demethylation during drying processes of citrus peels. Food Funct 2019; 10:5707-5717. [PMID: 31436765 DOI: 10.1039/c9fo01053j] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Polymethoxyflavones (PMFs) are found almost exclusively in citrus peel and have attracted much attention due to their potential health benefits. Dried citrus peel is an important ingredient for applications in food and traditional Chinese medicine. However, the structural changes of PMFs during drying processes of citrus peel remain unknown. In this study, for the first time we discovered that four major permethoxylated PMFs, i.e. sinensetin, nobiletin, heptamethoxyflavone and tangeretin, underwent demethylation at the 5-position on the A ring of their flavonoid structures to yield corresponding 5-demethylated PMFs during the drying process of citrus peel. Our results further demonstrated that the aforementioned PMF demethylation was through two mechanisms: acid hydrolysis and enzyme-mediated catalysis. PMF demethylation in citrus peels was systematically characterized during hot-air drying (HAD), vacuum-freeze drying (VFD) and sun drying (SD). The highest PMF demethylation was obtained in SD followed by HAD and VFD. This study provided a solid scientific basis for rational control of PMF demethylation in citrus peels, which could facilitate the production of high-quality citrus peel and related products.
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Affiliation(s)
- Huijuan Zhang
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, China.
| | - Guifang Tian
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, China.
| | - Chengying Zhao
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, China.
| | - Yanhui Han
- Department of Food Science, University of Massachusetts, Amherst, MA 01003, USA.
| | | | - Chang Lu
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, China.
| | - Yuming Bao
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, China.
| | - Chengxiu Li
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, China.
| | - Hang Xiao
- Department of Food Science, University of Massachusetts, Amherst, MA 01003, USA.
| | - Jinkai Zheng
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, China.
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Rani A, Baruah R, Goyal A. Prebiotic Chondroitin Sulfate Disaccharide Isolated from Chicken Keel Bone Exhibiting Anticancer Potential Against Human Colon Cancer Cells. Nutr Cancer 2018; 71:825-839. [DOI: 10.1080/01635581.2018.1521446] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Aruna Rani
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam, India
| | - Rwivoo Baruah
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam, India
| | - Arun Goyal
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam, India
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Zhao C, Wang F, Lian Y, Xiao H, Zheng J. Biosynthesis of citrus flavonoids and their health effects. Crit Rev Food Sci Nutr 2018; 60:566-583. [DOI: 10.1080/10408398.2018.1544885] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Chengying Zhao
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Feng Wang
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Yunhe Lian
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Hang Xiao
- Department of Food Science, University of Massachusetts, Amherst, MA, USA
| | - Jinkai Zheng
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing, China
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Tang Y, Zhang S, Chang Y, Fan D, Agostini AD, Zhang L, Jiang T. Aglycone Ebselen and β-d-Xyloside Primed Glycosaminoglycans Co-contribute to Ebselen β-d-Xyloside-Induced Cytotoxicity. J Med Chem 2018; 61:2937-2948. [PMID: 29584939 DOI: 10.1021/acs.jmedchem.7b01835] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Most β-d-xylosides with hydrophobic aglycones are nontoxic primers for glycosaminoglycan assembly in animal cells. However, when Ebselen was conjugated to d-xylose, d-glucose, d-galactose, and d-lactose (8A-D), only Ebselen β-d-xyloside (8A) showed significant cytotoxicity in human cancer cells. The following facts indicated that the aglycone Ebselen and β-d-xyloside primed glycosaminoglycans co-contributed to the observed cytotoxicity: 1. Ebselen induced S phase cell cycle arrest, whereas 8A induced G2/M cell cycle arrest; 2. 8A augmented early and late phase cancer cell apoptosis significantly compared to that of Ebselen and 8B-D; 3. Both 8A and phenyl-β-d-xyloside primed glycosaminoglycans with similar disaccharide compositions in CHO-pgsA745 cells; 4. Glycosaminoglycans could be detected inside of cells only when treated with 8A, indicating Ebselen contributed to the unique property of intracellular localization of the primed glycosaminoglycans. Thus, 8A represents a lead compound for the development of novel antitumor strategy by targeting glycosaminoglycans.
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Affiliation(s)
- Yang Tang
- Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy , Ocean University of China , Qingdao 266071 , P. R. China.,Medical Systems Biology Center for Complex Diseases , Affiliated Hospital of Qingdao University , Qingdao 266003 , P. R. China
| | - Siqi Zhang
- Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy , Ocean University of China , Qingdao 266071 , P. R. China
| | - Yajing Chang
- Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy , Ocean University of China , Qingdao 266071 , P. R. China.,Medical Systems Biology Center for Complex Diseases , Affiliated Hospital of Qingdao University , Qingdao 266003 , P. R. China
| | - Dacheng Fan
- Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy , Ocean University of China , Qingdao 266071 , P. R. China
| | - Ariane De Agostini
- Department of Gynecology and Obstetrics , Geneva University Hospitals and University of Geneva , Geneva 14 , Switzerland
| | - Lijuan Zhang
- Medical Systems Biology Center for Complex Diseases , Affiliated Hospital of Qingdao University , Qingdao 266003 , P. R. China
| | - Tao Jiang
- Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy , Ocean University of China , Qingdao 266071 , P. R. China.,Laboratory for Marine Drugs and Bioproducts of Qingdao National of Laboratory for Marine Science and Technology , Qingdao 266003 , P. R. China
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