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Stasiłowicz-Krzemień A, Cielecka-Piontek J. Hop Flower Supercritical Carbon Dioxide Extracts Coupled with Carriers with Solubilizing Properties-Antioxidant Activity and Neuroprotective Potential. Antioxidants (Basel) 2023; 12:1722. [PMID: 37760025 PMCID: PMC10525257 DOI: 10.3390/antiox12091722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 08/27/2023] [Accepted: 09/02/2023] [Indexed: 09/29/2023] Open
Abstract
Lupuli flos shows many biological activities like antioxidant potential, extended by a targeted effect on selected enzymes, the expression of which is characteristic for neurodegenerative changes within the nervous system. Lupuli flos extracts (LFE) were prepared by supercritical carbon dioxide (scCO2) extraction with various pressure and temperature parameters. The antioxidant, chelating activity, and inhibition of acetylcholinesterase (AChE), butyrylcholinesterase (BChE), and tyrosinase by extracts were studied. The extracts containing ethanol were used as references. The most beneficial neuroprotective effects were shown by the extract obtained under 5000 PSI and 50 °C. The neuroprotective effect of active compounds is limited by poor solubility; therefore, carriers with solubilizing properties were used for scCO2 extracts, combined with post-scCO2 ethanol extract. Hydroxypropyl-β-cyclodextrin (HP-β-CD) in combination with magnesium aluminometasilicate (Neusilin US2) in the ratio 1:0.5 improved dissolution profiles to the greatest extent, while the apparent permeability coefficients of these compounds determined using the parallel artificial membrane permeability assay in the gastrointestinal (PAMPA GIT) model were increased the most by only HP-β-CD.
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Affiliation(s)
- Anna Stasiłowicz-Krzemień
- Department of Pharmacognosy and Biomaterials, Faculty of Pharmacy, Poznan University of Medical Sciences, Rokietnicka 3, 60-806 Poznan, Poland
| | - Judyta Cielecka-Piontek
- Department of Pharmacognosy and Biomaterials, Faculty of Pharmacy, Poznan University of Medical Sciences, Rokietnicka 3, 60-806 Poznan, Poland
- Department of Pharmacology and Phytochemistry, Institute of Natural Fibres and Medicinal Plants, Wojska Polskiego 71b, 60-630 Poznan, Poland
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2
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Yuan X, Wang H, Song S, Qiu L, Lan X, Dong P, Zhang J. Stepwise Targeted Matching Strategy for Comprehensive Profiling of Xanthohumol Metabolites In Vivo and In Vitro Using UHPLC-Q-Exactive Orbitrap Mass Spectrometer. Molecules 2023; 28:5168. [PMID: 37446828 DOI: 10.3390/molecules28135168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 06/20/2023] [Accepted: 06/21/2023] [Indexed: 07/15/2023] Open
Abstract
Xanthohumol (XN), a natural prenylated flavonoid extracted and isolated from the hop plant (Humulus lupulus), possesses diverse pharmacological activities. Although the metabolites of XN have been investigated in the previous study, a comprehensive metabolic profile has been insufficient in vivo or in vitro until now. The current study was aimed at systematically elucidating the metabolic pathways of XN after oral administration to rats. Herein, a UHPLC-Q-Exactive Orbitrap MS was adopted for the potential metabolites detection. A stepwise targeted matching strategy for the overall identification of XN metabolites was proposed. A metabolic net (53 metabolites included) on XN in vivo and in vitro, as well as the metabolic profile investigation, were designed, preferably characterizing XN metabolites in rat plasma, urine, liver, liver microsomes, and feces. On the basis of a stepwise targeted matching strategy, the net showed that major in vivo metabolic pathways of XN in rats include glucuronidation, sulfation, methylation, demethylation, hydrogenation, dehydrogenation, hydroxylation, and so on. The proposed metabolic pathways in this research will provide essential data for further pharmaceutical studies of prenylated flavonoids and lay the foundation for further toxicity and safety studies.
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Affiliation(s)
- Xiaoqing Yuan
- College of Pharmacy, Binzhou Medical University, Yantai 264003, China
| | - Hong Wang
- College of Life Sciences, Shandong Agricultural University, Taian 271018, China
| | - Shuyi Song
- College of Pharmacy, Binzhou Medical University, Yantai 264003, China
| | - Lili Qiu
- Department of Medicine, Binzhou Polytechnic College, Binzhou 256600, China
| | - Xianming Lan
- College of Pharmacy, Binzhou Medical University, Yantai 264003, China
| | - Pingping Dong
- State Key Laboratory for Quality Research of Chinese Medicines, College of Pharmacy, Macau University of Science and Technology, Macao 999078, China
| | - Jiayu Zhang
- College of Pharmacy, Binzhou Medical University, Yantai 264003, China
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3
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Wenzel CK, von Montfort C, Ebbert L, Klahm NP, Reichert AS, Stahl W, Brenneisen P. The natural chalcone cardamonin selectively induces apoptosis in human neuroblastoma cells. Toxicol In Vitro 2023:105625. [PMID: 37268255 DOI: 10.1016/j.tiv.2023.105625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 05/11/2023] [Accepted: 05/26/2023] [Indexed: 06/04/2023]
Abstract
Neuroblastoma is the most common extracranial malignant tumor in childhood. Approximately 60% of all patients are classified as high-risk and require intensive treatment including non-selective chemotherapeutic agents leading to severe side effects. Recently, phytochemicals like the natural chalcone cardamonin (CD) have gained attention in cancer research. For the first time, we investigated the selective anti-cancer effects of CD in SH-SY5Y human neuroblastoma cells compared to healthy (normal) fibroblasts (NHDF). Our study revealed selective and dose-dependent cytotoxicity of CD in SH-SY5Y. The natural chalcone CD specifically altered the mitochondrial membrane potential (ΔΨm), as an early marker of apoptosis, in human neuroblastoma cells. Caspase activity was also selectively induced and the amount of cleaved caspase substrates such as PARP was thus increased in human neuroblastoma cells. CD-mediated apoptotic cell death was rescued by pan caspase inhibitor Z-VAD-FMK. The natural chalcone CD selectively induced apoptosis, the programmed cell death, in SH-SY5Y human neuroblastoma cells whereas NHDF being a model for normal (healthy) cells were unaffected. Our data indicates a clinical potential of CD in the more selective and less harmful treatment of neuroblastoma.
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Affiliation(s)
- Chantal-Kristin Wenzel
- Institute of Biochemistry and Molecular Biology I, Medical Faculty, Heinrich Heine University Düsseldorf, Düsseldorf, Germany.
| | - Claudia von Montfort
- Institute of Biochemistry and Molecular Biology I, Medical Faculty, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Lara Ebbert
- Institute of Biochemistry and Molecular Biology I, Medical Faculty, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Niklas P Klahm
- Institute of Biochemistry and Molecular Biology I, Medical Faculty, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Andreas S Reichert
- Institute of Biochemistry and Molecular Biology I, Medical Faculty, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Wilhelm Stahl
- Institute of Biochemistry and Molecular Biology I, Medical Faculty, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Peter Brenneisen
- Institute of Biochemistry and Molecular Biology I, Medical Faculty, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
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4
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Quality by Design (QbD) Based Method for Estimation of Xanthohumol in Bulk and Solid Lipid Nanoparticles and Validation. Molecules 2023; 28:molecules28020472. [PMID: 36677532 PMCID: PMC9864017 DOI: 10.3390/molecules28020472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 11/21/2022] [Accepted: 11/21/2022] [Indexed: 01/05/2023] Open
Abstract
The analytical quality by design (AQbD) approach is utilized for developing and validating the simple, sensitive, cost-effective reverse-phase high performance liquid chromatographic method for the estimation of xanthohumol (XH) in bulk and nanoformulations. The Box-Behnken design (BBD) is applied for method optimization. The mobile phase ratio, pH and flow rate were selected as independent variables, whereas retention time, peak area, peak height, tailing factor, and theoretical plates were selected as dependent variables. The chromatogram of XH obtained under optimized conditions has given optimum conditions such as retention time (5.392 min), peak area (1,226,737 mAU), peak height (90,121 AU), tailing factor (0.991) and theoretical plates (4446.667), which are contoured in the predicted values shown by BBD. Validation of the method has been performed according to ICH Q2(R1) recommendations, using optimized conditions for linearity, limit of detection (LOD) and limit of quantification (LOQ), accuracy, precision, robustness and system suitability. All the values of validation parameters lie within the acceptable limits prescribed by ICH. Therefore, the developed and validated method of XH by the AQbD approach can be applied for the estimation of XH in bulk and various nanoformulations.
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Bioanalytical Method Development, Validation and Stability Assessment of Xanthohumol in Rat Plasma. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27207117. [PMID: 36296708 PMCID: PMC9608944 DOI: 10.3390/molecules27207117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 10/07/2022] [Accepted: 10/12/2022] [Indexed: 11/29/2022]
Abstract
Xanthohumol (XH) a prenylated chalcone has diverse therapeutic effects against various diseases. In the present study, a bioanalytical method was developed for XH in rat plasma using reverse phase high performance liquid chromatography. The validation of the method was performed as per ICH M10 guidelines using curcumin as an internal standard. The Isocratic elution method was used with a run time of 10 min, wherein the mobile phase ratio 0.1% v/v OPA (A): Methanol (B) was 15:85 v/v at flow rate 0.8 mL/min and injection volume of 20 µL. The chromatograms of XH and curcumin was recorded at a wavelength of 370 nm. The retention time for XH and curcumin was 7.4 and 5.8 min, respectively. The spiked XH from plasma was extracted by the protein precipitation method. The developed method was linear with R2 value of 0.9996 over a concentration range of 50-250 ng/mL along with LLOQ. The results of all the validation parameters are found to be within the accepted limits with %RSD value less than 2 and the percentage recovery was found to be greater than 95%. Based on the %RSD and percentage recovery results it was confirmed that the method was precise and accurate among the study replicates. LOD and LOQ values in plasma samples were found to be 8.49 ng/mL and 25.73 ng/mL, respectively. The stability studies like freeze thaw, short term and long-term stability studies were also performed, %RSD and percentage recovery of the XH from plasma samples were within the acceptable limits. Therefore, the developed bioanalytical method can be used effectively for estimation of XH in plasma samples.
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6
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Khaikin E, Chrubasik-Hausmann S, Kaya S, Zimmermann BF. Screening of Thymoquinone Content in Commercial Nigella sativa Products to Identify a Promising and Safe Study Medication. Nutrients 2022; 14:nu14173501. [PMID: 36079759 PMCID: PMC9460610 DOI: 10.3390/nu14173501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 08/17/2022] [Accepted: 08/24/2022] [Indexed: 11/16/2022] Open
Abstract
(1) Background: Thymoquinone (TQ) is the leading compound accounting for the pharmacological effects of Nigella sativa seed oil, also known as black seed oil. This study aimed to analyze the TQ content of commercial black seed oils and black seed oil-containing capsules to obtain information on the quality of the products and to find a promising and safe study medication for a putative clinical study. (2) Methods: Six black seed oils and five black seed oil-containing capsules were analyzed. TQ was quantified using a validated method consisting of a simple methanolic extraction and a fast HPLC-UV analysis. (3) Results: The TQ content varied from 3.08 to 809.4 mg/100 g (mean). The highest TQ content was found in a bottled oil, which might be considered for a clinical study. A dose of 4 mL of this oil per day contains 30 mg TQ, which is unlikely to be harmful. Based on the literature, a safe daily TQ dosage appears to be <48.6 mg per adult. (4) Conclusions: These findings suggest that black seed products should be regulated regarding TQ content to enable consumers to buy black seed food supplements of known content for the maintenance and improvement of health.
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Affiliation(s)
- Elisabeth Khaikin
- Institute of Nutritional and Food Sciences, Food Sciences, University of Bonn, Meckenheimer Allee 166a, 53115 Bonn, Germany
| | | | - Sebahat Kaya
- Department of Oral and Maxillofacial Surgery Plastic Surgery, University of Mainz, Augustusplatz 2, 55131 Mainz, Germany
| | - Benno F Zimmermann
- Institute of Nutritional and Food Sciences, Food Sciences, University of Bonn, Meckenheimer Allee 166a, 53115 Bonn, Germany
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Zugravu CA, Bohiltea RE, Salmen T, Pogurschi E, Otelea MR. Antioxidants in Hops: Bioavailability, Health Effects and Perspectives for New Products. Antioxidants (Basel) 2022; 11:antiox11020241. [PMID: 35204124 PMCID: PMC8868281 DOI: 10.3390/antiox11020241] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 01/23/2022] [Accepted: 01/26/2022] [Indexed: 12/24/2022] Open
Abstract
Hop plant (Humulus lupulus L.) has been used by humans for ages, presumably first as a herbal remedy, then in the manufacturing of different products, from which beer is the most largely consumed. Female hops cones have different useful chemical compounds, an important class being antioxidants, mainly polyphenols. This narrative review describes the main antioxidants in hops, their bioavailability and biological effects, and the results obtained by now in the primary and secondary prevention of several non-communicable diseases, such as the metabolic syndrome related diseases and oncology. This article presents in vitro and in vivo data in order to better understand what was accomplished in terms of knowledge and practice, and what needs to be clarified by additional studies, mainly regarding xantohumol and its derivates, as well as regarding the bitter acids of hops. The multiple protective effects found by different studies are hindered up to now by the low bioavailability of some of the main antioxidants in hops. However, there are new promising products with important health effects and perspectives of use as food supplements, in a market where consumers increasingly search for products originating directly from plants.
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Affiliation(s)
- Corina-Aurelia Zugravu
- Department of Hygiene and Ecology, “Carol Davila” University of Medicine and Pharmacy, 050463 Bucharest, Romania; or
| | - Roxana-Elena Bohiltea
- Department of Obstetrics and Gynecology, “Carol Davila” University of Medicine and Pharmacy Bucharest, 020021 Bucharest, Romania; or
| | - Teodor Salmen
- Department of Diabetes, Nutrition and Metabolic Diseases, “Prof. Dr. N.C.Paulescu” National Institute of Diabetes, 030167 Bucharest, Romania
- Correspondence: ; Tel.: +40-743526731
| | - Elena Pogurschi
- Faculty of Animal Productions Engineering and Management, University of Agronomic Sciences and Veterinary Medicine of Bucharest, 57 Marasti Blvd, 011464 Bucharest, Romania; or
| | - Marina Ruxandra Otelea
- Clinical Department 5, “Carol Davila” University of Medicine and Pharmacy, 050463 Bucharest, Romania; or
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8
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Neumann HF, Frank J, Venturelli S, Egert S. Bioavailability and Cardiometabolic Effects of Xanthohumol: Evidence from Animal and Human Studies. Mol Nutr Food Res 2021; 66:e2100831. [PMID: 34967501 DOI: 10.1002/mnfr.202100831] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Revised: 11/25/2021] [Indexed: 11/11/2022]
Abstract
Xanthohumol is the main prenylflavonoid in hops and has been associated with a wide range of health benefits, due to its anti-inflammatory, anti-oxidative, and cancer-preventive properties. Increasing evidence suggests that xanthohumol positively affects biomarkers associated with metabolic syndrome and cardiovascular diseases (CVDs). This review summarizes the effects of xanthohumol supplementation on body weight, lipid and glucose metabolism, systemic inflammation, and redox status. In addition, it provides insights into the pharmacokinetics of xanthohumol intake. Animal studies show that xanthohumol exerts beneficial effects on body weight, lipid profile, glucose metabolism, and other biochemical parameters associated with metabolic syndrome and CVDs. Although in vitro studies are increasingly elucidating the responsible mechanisms, the overall in vivo results are currently inconsistent and quantitatively insufficient. Pharmacokinetic and safety studies confirm that intake of xanthohumol is safe and well tolerated in both animals and humans. However, little is known about the metabolism of xanthohumol in the human body, and even less about its effects on body weight and CVD risk factors. There is an urgent need for studies investigating whether the effects of xanthohumol on body weight and cardiometabolic parameters observed in animal studies are reproducible in humans, and what dosage, formulation, and intervention period are required. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Hannah F Neumann
- Institute of Nutritional Medicine, University of Hohenheim, Stuttgart, Germany.,Department of Nutrition and Food Sciences, University of Bonn, Germany
| | - Jan Frank
- Institute of Nutritional Sciences, University of Hohenheim, Stuttgart, Germany
| | - Sascha Venturelli
- Institute of Nutritional Sciences, University of Hohenheim, Stuttgart, Germany.,Institute of Physiology, University of Tuebingen, Tuebingen, Germany
| | - Sarah Egert
- Institute of Nutritional Medicine, University of Hohenheim, Stuttgart, Germany.,Department of Nutrition and Food Sciences, University of Bonn, Germany
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9
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Rodrigues Arruda T, Fontes Pinheiro P, Ibrahim Silva P, Campos Bernardes P. Exclusive Raw Material for Beer Production? Addressing Greener Extraction Techniques, the Relevance, and Prospects of Hops (Humulus lupulus L.) for the Food Industry. FOOD BIOPROCESS TECH 2021. [DOI: 10.1007/s11947-021-02716-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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10
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Girisa S, Saikia Q, Bordoloi D, Banik K, Monisha J, Daimary UD, Verma E, Ahn KS, Kunnumakkara AB. Xanthohumol from Hop: Hope for cancer prevention and treatment. IUBMB Life 2021; 73:1016-1044. [PMID: 34170599 DOI: 10.1002/iub.2522] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Revised: 06/17/2021] [Accepted: 06/21/2021] [Indexed: 12/16/2022]
Abstract
Cancer is a major public health concern due to high mortality and poor quality of life of patients. Despite the availability of advanced therapeutic interventions, most treatment modalities are not efficacious, very expensive, and cause several adverse side effects. The factors such as drug resistance, lack of specificity, and low efficacy of the cancer drugs necessitate developing alternative strategies for the prevention and treatment of this disease. Xanthohumol (XN), a prenylated chalcone present in Hop (Humulus lupulus), has been found to possess prominent activities against aging, diabetes, inflammation, microbial infection, and cancer. Thus, this manuscript thoroughly reviews the literature on the anti-cancer properties of XN and its various molecular targets. XN was found to exert its inhibitory effect on the growth and proliferation of cancer cells via modulation of multiple signaling pathways such as Akt, AMPK, ERK, IGFBP2, NF-κB, and STAT3, and also modulates various proteins such as Notch1, caspases, MMPs, Bcl-2, cyclin D1, oxidative stress markers, tumor-suppressor proteins, and miRNAs. Thus, these reports suggest that XN possesses enormous therapeutic potential against various cancers and could be potentially used as a multi-targeted anti-cancer agent with minimal adverse effects.
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Affiliation(s)
- Sosmitha Girisa
- Cancer Biology Laboratory and DBT-AIST International Center for Translational and Environmental Research (DAICENTER), Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam, India
| | - Queen Saikia
- Cancer Biology Laboratory and DBT-AIST International Center for Translational and Environmental Research (DAICENTER), Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam, India
| | - Devivasha Bordoloi
- Cancer Biology Laboratory and DBT-AIST International Center for Translational and Environmental Research (DAICENTER), Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam, India
| | - Kishore Banik
- Cancer Biology Laboratory and DBT-AIST International Center for Translational and Environmental Research (DAICENTER), Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam, India
| | - Javadi Monisha
- Cancer Biology Laboratory and DBT-AIST International Center for Translational and Environmental Research (DAICENTER), Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam, India
| | - Uzini Devi Daimary
- Cancer Biology Laboratory and DBT-AIST International Center for Translational and Environmental Research (DAICENTER), Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam, India
| | - Elika Verma
- Cancer Biology Laboratory and DBT-AIST International Center for Translational and Environmental Research (DAICENTER), Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam, India
| | - Kwang Seok Ahn
- Department of Science in Korean Medicine, College of Korean Medicine, Kyung Hee University, 24 Kyungheedae-ro, Dongdaemun-gu, Seoul, 02447, South Korea
| | - Ajaikumar B Kunnumakkara
- Cancer Biology Laboratory and DBT-AIST International Center for Translational and Environmental Research (DAICENTER), Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam, India
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11
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Tuli HS, Aggarwal V, Parashar G, Aggarwal D, Parashar NC, Tuorkey MJ, Varol M, Sak K, Kumar M, Buttar HS. Xanthohumol: A Metabolite with Promising Anti-Neoplastic Potential. Anticancer Agents Med Chem 2021; 22:418-432. [PMID: 33622230 DOI: 10.2174/1871520621666210223095021] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 12/03/2020] [Accepted: 12/14/2020] [Indexed: 11/22/2022]
Abstract
The overwhelming globalburden of cancer has posed numerous challenges and opportunities for developing anti-cancer therapies. Phytochemicalshave emerged as promising synergistic compounds with potential anti-cancer effects to supplement chemo- and immune-therapeutic regimens. Anti cancer synergistic effects have been investigated in the interaction between phytocompounds derived from flavonoids such as quercetin, apigenin, kaempferol, hesperidin, emodin etc., and conventional drugs. Xanthohumol is one of the prenylatedphytoflavonoid that has demonstrated key anti-cancer activities in in vitro (anti proliferation of cancer cell lines) and in vivo(animal models of xenograft tumours)studies, and has been explored from different dimensions for targeting cancer subtypes. In the last decade, xanthohumol has been investigated how it induces the anti-cancer effects at cellular and molecular level.The different signalling cascades and targets of xanthohumolare summarized in thisreview.Overall, this reviewsummarizes the current advances made in the field of natural compounds with special reference to xanthohumol and its promising anti-cancer effectsto inhibit tumour progression.The present review hasalso touched upon the potential of xanthohumol transitioning into a lead candidate from nano-therapy viewpoint along with the challenges which need to be addressed for extensive pre-clinical and clinical anti-cancer studies.
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Affiliation(s)
- Hardeep S Tuli
- Department of Biotechnology, Maharishi Markandeshwar (Deemed to be University), Mullana-Ambala - 133 207, Haryana. India
| | - Vaishali Aggarwal
- Department of Pharmaceutical Sciences, University of Pittsburgh, PA. United States
| | - Gaurav Parashar
- Department of Biotechnology, Maharishi Markandeshwar (Deemed to be University), Mullana-Ambala - 133 207, Haryana. India
| | - Diwakar Aggarwal
- Department of Biotechnology, Maharishi Markandeshwar (Deemed to be University), Mullana-Ambala - 133 207, Haryana. India
| | - Nidarshana C Parashar
- Department of Biotechnology, Maharishi Markandeshwar (Deemed to be University), Mullana-Ambala - 133 207, Haryana. India
| | - Muobarak J Tuorkey
- Division of Physiology, Zoology Department, Faculty of Science, Damanhour University, Damanhour. Egypt
| | - Mehmet Varol
- Department of Molecular Biology and Genetics, Faculty of Science, MuglaSitkiKocman University, Mugla TR48000. Turkey
| | | | - Manoj Kumar
- Department of Chemistry, Maharishi Markandeshwar University, Sadopur. India
| | - Harpal S Buttar
- Department of Pathology and Laboratory Medicine, Faculty of Medicine, University of Ottawa, Ottawa, Ontario. Canada
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12
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Salehi B, Quispe C, Chamkhi I, El Omari N, Balahbib A, Sharifi-Rad J, Bouyahya A, Akram M, Iqbal M, Docea AO, Caruntu C, Leyva-Gómez G, Dey A, Martorell M, Calina D, López V, Les F. Pharmacological Properties of Chalcones: A Review of Preclinical Including Molecular Mechanisms and Clinical Evidence. Front Pharmacol 2021; 11:592654. [PMID: 33536909 PMCID: PMC7849684 DOI: 10.3389/fphar.2020.592654] [Citation(s) in RCA: 111] [Impact Index Per Article: 37.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Accepted: 11/12/2020] [Indexed: 12/11/2022] Open
Abstract
Chalcones are among the leading bioactive flavonoids with a therapeutic potential implicated to an array of bioactivities investigated by a series of preclinical and clinical studies. In this article, different scientific databases were searched to retrieve studies depicting the biological activities of chalcones and their derivatives. This review comprehensively describes preclinical studies on chalcones and their derivatives describing their immense significance as antidiabetic, anticancer, anti-inflammatory, antimicrobial, antioxidant, antiparasitic, psychoactive, and neuroprotective agents. Besides, clinical trials revealed their use in the treatment of chronic venous insufficiency, skin conditions, and cancer. Bioavailability studies on chalcones and derivatives indicate possible hindrance and improvement in relation to its nutraceutical and pharmaceutical applications. Multifaceted and complex underlying mechanisms of chalcone actions demonstrated their ability to modulate a number of cancer cell lines, to inhibit a number of pathological microorganisms and parasites, and to control a number of signaling molecules and cascades related to disease modification. Clinical studies on chalcones revealed general absence of adverse effects besides reducing the clinical signs and symptoms with decent bioavailability. Further studies are needed to elucidate their structure activity, toxicity concerns, cellular basis of mode of action, and interactions with other molecules.
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Affiliation(s)
- Bahare Salehi
- Medical Ethics and Law Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Cristina Quispe
- Facultad de Ciencias de La Salud, Universidad Arturo Prat, Iquique, Chile
| | - Imane Chamkhi
- Faculty of Sciences, Mohammed V University of Rabat, Rabat, Morocco.,Laboratory of Plant-Microbe Interactions, AgroBioSciences, Mohammed VI Polytechnic University, Ben Guerir, Morocco
| | - Nasreddine El Omari
- Laboratory of Histology, Embryology, and Cytogenetic, Faculty of Medicine and Pharmacy, Mohammed V University in Rabat, Rabat, Morocco
| | - Abdelaali Balahbib
- Laboratory of Zoology and General Biology, Faculty of Sciences, Mohammed V University in Rabat, Rabat, Morocco
| | - Javad Sharifi-Rad
- Phytochemistry Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,Facultad de Medicina, Universidad del Azuay, Cuenca, Ecuador
| | - Abdelhakim Bouyahya
- Laboratory of Human Pathologies Biology, Department of Biology, Faculty of Sciences, and Genomic Center of Human Pathologies, Faculty of Medicine and Pharmacy, Mohammed V University Rabat, Rabat, Morocco
| | - Muhammad Akram
- Department of Eastern Medicine, Government College University, Faisalabad, Pakistan
| | - Mehwish Iqbal
- Institute of Health Management, Dow University of Health Sciences, Karachi, Pakistan
| | - Anca Oana Docea
- Department of Toxicology, University of Medicine and Pharmacy of Craiova, Craiova, Romania
| | - Constantin Caruntu
- Department of Physiology, "Carol Davila" University of Medicine and Pharmacy, Bucharest, Romania.,Department of Dermatology, "Prof. N.C. Paulescu" National Institute of Diabetes, Nutrition, and Metabolic Diseases, Bucharest, Romania
| | - Gerardo Leyva-Gómez
- Departamento De Farmacia, Facultad De Química, Universidad Nacional Autónoma De México, Ciudad De México, Mexico
| | - Abhijit Dey
- Department of Life Sciences, Presidency University, Kolkata, India
| | - Miquel Martorell
- Department of Nutrition and Dietetics, Faculty of Pharmacy, and Centre for Healthy Living, University of Concepción, Concepción, Chile.,Unidad De Desarrollo Tecnológico, UDT, Universidad De Concepción, Concepción, Chile
| | - Daniela Calina
- Department of Clinical Pharmacy, University of Medicine and Pharmacy of Craiova, Craiova, Romania
| | - Víctor López
- Department of Pharmacy, Faculty of Health Sciences, Universidad San Jorge, Zaragoza, Spain.,Instituto Agroalimentario De Aragón-IA2 CITA-Universidad De Zaragoza, Zaragoza, Spain
| | - Francisco Les
- Department of Pharmacy, Faculty of Health Sciences, Universidad San Jorge, Zaragoza, Spain.,Instituto Agroalimentario De Aragón-IA2 CITA-Universidad De Zaragoza, Zaragoza, Spain
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13
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Iniguez AB, Zhu MJ. Hop bioactive compounds in prevention of nutrition-related noncommunicable diseases. Crit Rev Food Sci Nutr 2020; 61:1900-1913. [PMID: 32462886 DOI: 10.1080/10408398.2020.1767537] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Nutrition-related noncommunicable diseases (NR-NCDs) such as cardiovascular disease and type 2 diabetes both negatively impact the quality of life of many individuals and generate a substantial burden on society, demonstrating a need for intervention. Phytochemicals are investigated as a potential approach for combating NR-NCDs, and those found in hops have gained increased attention in recent decades. Hops, the strobile of the plant Humulus lupulus, are grown primarily for the brewing industry as they confer taste and increased shelf-life. The bitter acids represent the main compounds of interest for improving beer quality. Additionally, bitter acids as well as the prenylated chalcone xanthohumol, exhibit a wide range of health beneficial properties. This review summarizes those beneficial effects of bitter acids and xanthohumol on NR-NCDs, including inflammatory and immune diseases, obesity and metabolic disorders, as well as cancer prevention.
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Affiliation(s)
| | - Mei-Jun Zhu
- School of Food Science, Washington State University, Pullman, Washington, USA
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14
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Taneja I, Raghuvanshi A, Rama Raju KS, Awasthi P, Rashid M, Singh S, Goel A, Singh SP, Wahajuddin M. Bioavailability, tissue distribution and excretion studies of a potential anti-osteoporotic agent, medicarpin, in female rats using validated LC-MS/MS method. J Pharm Biomed Anal 2020; 180:112978. [PMID: 31855725 DOI: 10.1016/j.jpba.2019.112978] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Revised: 10/24/2019] [Accepted: 11/08/2019] [Indexed: 11/28/2022]
Abstract
Medicarpin, one of the active constituents isolated from the extract of Butea monosperma, has been shown to have various pharmacological activities including potent anti-osteoporotic properties. The aim of this study was to investigate the oral pharmacokinetics, tissue distribution and excretion of medicarpin following single oral dose administration in female rats. Oral pharmacokinetics was explored at 5 and 20 mg/kg while tissue distribution, urinary and fecal excretion were studied following 20 mg/kg oral dose. Medicarpin was quantified in rat plasma, urine, feces and tissue samples using a validated LC-MS/MS method following reverse-phase HPLC separation on RP18 column (4.6 mm × 50 mm, 5.0 μm) using methanol and 10 mM ammonium acetate (pH 4.0) as mobile phase in the ratio of 80:20 (v/v) at a flow rate of 0.8 mL/min. The oral bioavailability of medicarpin was found to be low with low systemic levels. The concentration in tissues was significantly higher than plasma. Highest tissue concentrations were found in the liver followed by bone marrow. Urinary and fecal excretion of medicarpin was < 1 %. In conclusion, medicarpin was found to be highly distributed in body tissues and minimally excreted via urine or feces.
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Affiliation(s)
- Isha Taneja
- Academcy of Scientific and Innovative Research, New Delhi, India; Pharmaceutics and Pharmacokinetics Division, CSIR-Central Drug Research Institute, Lucknow, 226031, India
| | - Ashutosh Raghuvanshi
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow, 226031, India
| | - Kanumuri Siva Rama Raju
- Academcy of Scientific and Innovative Research, New Delhi, India; Pharmaceutics and Pharmacokinetics Division, CSIR-Central Drug Research Institute, Lucknow, 226031, India
| | - Pallavi Awasthi
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow, 226031, India
| | - Mamunur Rashid
- Academcy of Scientific and Innovative Research, New Delhi, India; Pharmaceutics and Pharmacokinetics Division, CSIR-Central Drug Research Institute, Lucknow, 226031, India
| | - Sandeep Singh
- Academcy of Scientific and Innovative Research, New Delhi, India; Pharmaceutics and Pharmacokinetics Division, CSIR-Central Drug Research Institute, Lucknow, 226031, India
| | - Atul Goel
- Academcy of Scientific and Innovative Research, New Delhi, India; Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow, 226031, India
| | - Sheelendra Pratap Singh
- Pesticide Toxicology Laboratory, Regulatory Toxicology and Nanotherapeutics & Nanomaterial Toxicology Group, CSIR-Indian Institute of Toxicology Research, Lucknow, 226001, India.
| | - Muhammad Wahajuddin
- Academcy of Scientific and Innovative Research, New Delhi, India; Pharmaceutics and Pharmacokinetics Division, CSIR-Central Drug Research Institute, Lucknow, 226031, India.
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15
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Jiang CH, Sun TL, Xiang DX, Wei SS, Li WQ. Anticancer Activity and Mechanism of Xanthohumol: A Prenylated Flavonoid From Hops ( Humulus lupulus L.). Front Pharmacol 2018; 9:530. [PMID: 29872398 PMCID: PMC5972274 DOI: 10.3389/fphar.2018.00530] [Citation(s) in RCA: 96] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2018] [Accepted: 05/02/2018] [Indexed: 12/17/2022] Open
Abstract
It has been observed that many phytochemicals, frequently present in foods or beverages, show potent chemopreventive or therapeutic properties that selectively affect cancer cells. Numerous studies have demonstrated the anticancer activity of xanthohumol (Xn), a prenylated flavonoid isolated from hops (Humulus lupulus L.), with a concentration up to 0.96 mg/L in beer. This review aims to summarize the existing studies focusing on the anticancer activity of Xn and its effects on key signaling molecules. Furthermore, the limitations of current studies and challenges for the clinical use of Xn are discussed.
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Affiliation(s)
- Chuan-Hao Jiang
- Department of Laboratory Medicine, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Tao-Li Sun
- Key Laboratory Breeding Base of Hu'nan Oriented Fundamental and Applied Research of Innovative Pharmaceutics, College of Pharmacy, Changsha Medical University, Changsha, China
| | - Da-Xiong Xiang
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha, China.,Institute of Clinical Pharmacy, Central South University, Changsha, China.,Hunan Provincial Engineering Research Center of Translational Medicine and Innovative Drug, Changsha, China
| | - Shan-Shan Wei
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha, China.,Institute of Clinical Pharmacy, Central South University, Changsha, China
| | - Wen-Qun Li
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha, China.,Institute of Clinical Pharmacy, Central South University, Changsha, China.,Hunan Provincial Engineering Research Center of Translational Medicine and Innovative Drug, Changsha, China
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16
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Choi HS, Ko BS, Kim HD, Hong KB, Suh HJ. Effect of Valerian/Hop Mixture on Sleep-Related Behaviors in Drosophila melanogaster. Biol Pharm Bull 2018; 40:1101-1110. [PMID: 28674253 DOI: 10.1248/bpb.b17-00262] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The aim of this study was to investigate the sleep-promoting effect of a Valerian/Hops mixture in fruit flies. The HPLC analysis showed that Valerenic acid (1260.53 µg/g of extract) and Xanthohumol (Cascade: 827.49 µg/g, Hallertau: 763.60 µg/g, Saaz: 186.93 µg/g) were contained in Valerian and Hop, respectively. The sleep patterns of fruit flies on the Valerian/Hops were examined in both baseline and caffeine-treated conditions. Total activities of flies significantly decreased in 20 mg/mL Valerian (74%), 10 mg/mL Cascade (25%), and 5 mg/mL Hallertau (11%) during nighttime or daytime compared with the control. Valerian/Cascade mixture showed longer sleeping time (ca. 20%) than control group. This mixture-mediated effect was partly observed in caffeine-treated flies. Valerian/Cascade mixture upregulated mRNA expressions of gamma-aminobutyric acid (GABA) receptors and serotonin receptor, and GABA receptors were more strongly regulated than serotonin receptor. In competitive GABA receptor binding assay, Valerian/Cascade mixture extract showed a higher binding ability on GABA receptor than Valerenic acid or/and Xanthohumol which are estimated to be active compounds in the extract. This study demonstrates that a Valerian/Cascade mixture extract improves sleep-related behaviors, including sleeping time, by modulating GABAergic/serotonergic signaling.
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Affiliation(s)
- Hyeon-Son Choi
- Department of Food Science and Technology, Seoul Women's University
| | - Bong Soo Ko
- Research and Development Center, Namyang Dairy Products Corporation
| | - Hae Dun Kim
- Department of Public Health Sciences, Korea University
| | - Ki-Bae Hong
- Department of Biological Sciences and Environmental Science Program, Southern Illinois University-Edwardsville
| | - Hyung Joo Suh
- Department of Public Health Sciences, Korea University
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17
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Xiao S, Zhang W, Chen H, Fang B, Qiu Y, Chen X, Chen L, Shu S, Zhang Y, Zhao Y, Liu Z, Liang G. Design, synthesis, and structure-activity relationships of 2-benzylidene-1-indanone derivatives as anti-inflammatory agents for treatment of acute lung injury. DRUG DESIGN DEVELOPMENT AND THERAPY 2018; 12:887-899. [PMID: 29719375 PMCID: PMC5914570 DOI: 10.2147/dddt.s160314] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Purpose The purpose of this study was to design and synthesize novel 2-benzylidene-1-indanone derivatives for treatment of acute lung injury. Methods A series of 39 novel 2-benzylidene-indanone structural derivatives were synthesized and evaluated for anti-inflammatory activity in lipopolysaccharide (LPS)-stimulated murine primary macrophages. Results Most of the obtained compounds effectively inhibited the LPS-induced expression of IL-6 and TNF-α. The most active compound, 8f, was found to significantly reduce LPS-induced pulmonary inflammation, as reflected by reductions in the concentration of total protein, inflammatory cell count, as well as the lung wet/dry ratio in bronchoalveolar lavage (BAL) fluid. Furthermore, 8f effectively inhibited mRNA expression of several inflammatory cytokines after LPS challenge in vitro and in vivo. Administration of 8f also blocked LPS-induced activation of the proinflammatory NF-κB/MAPK signaling pathway. Conclusion The simple synthetic preparation and biological properties of these derivatives make these 2-benzylidene-indanone scaffolds promising new entities for the development of anti-inflammatory therapeutics for the treatment of acute lung injury.
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Affiliation(s)
- Siyang Xiao
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Wenxin Zhang
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Hongjin Chen
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Bo Fang
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Yinda Qiu
- College of Life and Environmental Science, Wenzhou University, Wenzhou, Zhejiang, China
| | - Xianxin Chen
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Lingfeng Chen
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Sheng Shu
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Yali Zhang
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Yunjie Zhao
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Zhiguo Liu
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Guang Liang
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China
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18
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Sus N, Schlienz J, Calvo-Castro LA, Burkard M, Venturelli S, Busch C, Frank J. Validation of a rapid and sensitive reversed-phase liquid chromatographic method for the quantification of prenylated chalcones and flavanones in plasma and urine. NFS JOURNAL 2018. [DOI: 10.1016/j.nfs.2017.11.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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19
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Hirata H, Uto-Kondo H, Ogura M, Ayaori M, Shiotani K, Ota A, Tsuchiya Y, Ikewaki K. Xanthohumol, a hop-derived prenylated flavonoid, promotes macrophage reverse cholesterol transport. J Nutr Biochem 2017; 47:29-34. [PMID: 28501703 DOI: 10.1016/j.jnutbio.2017.04.011] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2016] [Revised: 04/09/2017] [Accepted: 04/14/2017] [Indexed: 12/27/2022]
Abstract
Xanthohumol, a prominent prenyl flavonoid from the hop plant (Humulus lupulus L.), is suggested to be antiatherogenic since it reportedly increases high-density lipoprotein (HDL) cholesterol levels. It is not clear whether xanthohumol promotes reverse cholesterol transport (RCT), the most important antiatherogenic property of HDL; therefore, we investigated the effects of xanthohumol on macrophage-to-feces RCT using a hamster model as a CETP-expressing species. In vivo RCT experiments showed that xanthohumol significantly increased fecal appearance of the tracer derived from intraperitoneally injected [3H]-cholesterol-labeled macrophages. Ex vivo experiments were then employed to investigate the detailed mechanism by which xanthohumol enhanced RCT. Cholesterol efflux capacity from macrophages was 1.5-fold higher in xanthohumol-fed hamsters compared with the control group. In addition, protein expression and lecithin-cholesterol acyltransferase activity in the HDL fraction were significantly higher in xanthohumol-fed hamsters compared with the control, suggesting that xanthohumol promoted HDL maturation. Hepatic transcript analysis revealed that xanthohumol increased mRNA expression of abcg8 and cyp7a1. In addition, protein expressions of liver X receptor α and bile pump export protein were increased in the liver by xanthohumol administration when compared with the control, implying that it stimulated bile acid synthesis and cholesterol excretion to feces. In conclusion, our data demonstrate that xanthohumol improves RCT in vivo through cholesterol efflux from macrophages and excretion to feces, leading to antiatherosclerosis effects. It remains to be elucidated whether enhancement of RCT by xanthohumol could prove valuable in humans.
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Affiliation(s)
- Hiroshi Hirata
- Frontier Laboratories for Value Creation, SAPPORO HOLDINGS LTD., 10 Okatome, Yaizu, Shizuoka 425-0013, Japan.
| | - Harumi Uto-Kondo
- Division of Neurology, Anti-Aging, and Vascular Medicine, Department of Internal Medicine, National Defense Medical College, 3-2 Namiki, Tokorozawa, Saitama 359-8513, Japan
| | - Masatsune Ogura
- Division of Neurology, Anti-Aging, and Vascular Medicine, Department of Internal Medicine, National Defense Medical College, 3-2 Namiki, Tokorozawa, Saitama 359-8513, Japan
| | - Makoto Ayaori
- Tokorozawa Heart Center, 1-4-1-101 Midoricho, Tokorozawa, Saitama 359-1111, Japan
| | - Kazusa Shiotani
- Division of Neurology, Anti-Aging, and Vascular Medicine, Department of Internal Medicine, National Defense Medical College, 3-2 Namiki, Tokorozawa, Saitama 359-8513, Japan
| | - Ami Ota
- Frontier Laboratories for Value Creation, SAPPORO HOLDINGS LTD., 10 Okatome, Yaizu, Shizuoka 425-0013, Japan
| | - Youichi Tsuchiya
- Frontier Laboratories for Value Creation, SAPPORO HOLDINGS LTD., 10 Okatome, Yaizu, Shizuoka 425-0013, Japan
| | - Katsunori Ikewaki
- Division of Neurology, Anti-Aging, and Vascular Medicine, Department of Internal Medicine, National Defense Medical College, 3-2 Namiki, Tokorozawa, Saitama 359-8513, Japan
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20
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In vivo and in vitro studies of the role of lyophilised blond Lager beer and some bioactive components in the modulation of degenerative processes. J Funct Foods 2016. [DOI: 10.1016/j.jff.2016.09.014] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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21
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Weiskirchen R, Mahli A, Weiskirchen S, Hellerbrand C. The hop constituent xanthohumol exhibits hepatoprotective effects and inhibits the activation of hepatic stellate cells at different levels. Front Physiol 2015; 6:140. [PMID: 25999863 PMCID: PMC4422013 DOI: 10.3389/fphys.2015.00140] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2015] [Accepted: 04/20/2015] [Indexed: 01/17/2023] Open
Abstract
Xanthohumol is the principal prenylated flavonoid of the female inflorescences of the hop plant. In recent years, various beneficial xanthohumol effects including anti-inflammatory, antioxidant, hypoglycemic activities, and anticancer effects have been revealed. This review summarizes present studies indicating that xanthohumol also inhibits several critical pathophysiological steps during the development and course of chronic liver disease, including the activation and pro-fibrogenic genotype of hepatic stellate cells. Also the various mechanism of action and molecular targets of the beneficial xanthohumol effects will be described. Furthermore, the potential use of xanthohumol or a xanthohumol-enriched hop extract as therapeutic agent to combat the progression of chronic liver disease will be discussed. It is notable that in addition to its hepatoprotective effects, xanthohumol also holds promise as a therapeutic agent for treating obesity, dysregulation of glucose metabolism and other components of the metabolic syndrome including hepatic steatosis. Thus, therapeutic xanthohumol application appears as a promising strategy, particularly in obese patients, to inhibit the development as well as the progression of non-alcoholic fatty liver disease.
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Affiliation(s)
- Ralf Weiskirchen
- Institute of Molecular Pathobiochemistry, Experimental Gene Therapy and Clinical Chemistry, RWTH University Hospital Aachen Aachen, Germany
| | - Abdo Mahli
- Department of Internal Medicine I, University Hospital Regensburg Regensburg, Germany
| | - Sabine Weiskirchen
- Institute of Molecular Pathobiochemistry, Experimental Gene Therapy and Clinical Chemistry, RWTH University Hospital Aachen Aachen, Germany
| | - Claus Hellerbrand
- Department of Internal Medicine I, University Hospital Regensburg Regensburg, Germany
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22
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Pharmacological profile of xanthohumol, a prenylated flavonoid from hops (Humulus lupulus). Molecules 2015; 20:754-79. [PMID: 25574819 PMCID: PMC6272297 DOI: 10.3390/molecules20010754] [Citation(s) in RCA: 145] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2014] [Accepted: 12/30/2014] [Indexed: 11/17/2022] Open
Abstract
The female inflorescences of hops (Humulus lupulus L.), a well-known bittering agent used in the brewing industry, have long been used in traditional medicines. Xanthohumol (XN) is one of the bioactive substances contributing to its medical applications. Among foodstuffs XN is found primarily in beer and its natural occurrence is surveyed. In recent years, XN has received much attention for its biological effects. The present review describes the pharmacological aspects of XN and summarizes the most interesting findings obtained in the preclinical research related to this compound, including the pharmacological activity, the pharmacokinetics, and the safety of XN. Furthermore, the potential use of XN as a food additive considering its many positive biological effects is discussed.
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23
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Kołota A, Oczkowski M, Gromadzka-Ostrowska J. Wpływ występujących w piwie związków polifenolowych na organizm – przegląd literatury. ALCOHOLISM AND DRUG ADDICTION 2014. [DOI: 10.1016/s0867-4361(14)70020-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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24
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Development of a new high-performance liquid chromatography method with diode array and electrospray ionization-mass spectrometry detection for the metabolite fingerprinting of bioactive compounds in Humulus lupulus L. J Chromatogr A 2014; 1349:50-9. [DOI: 10.1016/j.chroma.2014.04.097] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2014] [Revised: 04/14/2014] [Accepted: 04/30/2014] [Indexed: 11/20/2022]
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25
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Yeo HQ, Liu SQ. An overview of selected specialty beers: developments, challenges and prospects. Int J Food Sci Technol 2014. [DOI: 10.1111/ijfs.12488] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Hui Qi Yeo
- Department of Chemistry; Food Science and Technology Programme; National University of Singapore; Science Drive 3 117543 Singapore Singapore
| | - Shao-Quan Liu
- National University of Singapore (Suzhou) Research Institute; No. 377 Linquan Street, Suzhou Industrial Park Suzhou Jiangsu 215123 China
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26
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Dietz BM, Hagos GK, Eskra JN, Wijewickrama GT, Anderson JR, Nikolic D, Guo J, Wright B, Chen SN, Pauli GF, van Breemen RB, Bolton JL. Differential regulation of detoxification enzymes in hepatic and mammary tissue by hops (Humulus lupulus) in vitro and in vivo. Mol Nutr Food Res 2013; 57:1055-66. [PMID: 23512484 PMCID: PMC3864769 DOI: 10.1002/mnfr.201200534] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2012] [Revised: 12/21/2012] [Accepted: 01/03/2013] [Indexed: 12/21/2022]
Abstract
SCOPE Hops contain the phytoestrogen, 8-prenylnaringenin, and the cytoprotective compound, xanthohumol (XH). XH induces the detoxification enzyme, NAD(P)H-quinone oxidoreductase (NQO1) in vitro; however, the tissue distribution of XH and 8-prenylnaringenin and their tissue-specific activity have not been analyzed. METHODS AND RESULTS An orally administered hop extract and subcutaneously injected XH were administered to Sprague-Dawley rats over 4 days. LC-MS-MS analysis of plasma, liver, and mammary gland revealed that XH accumulated in liver and mammary glands. Compared with the low level in the original extract, 8-prenylnaringenin was enriched in the tissues. Hops and XH-induced NQO1 in the liver, while only hops reduced NQO1 activity in the mammary gland. Mechanistic studies revealed that hops modulated NQO1 through three mechanisms. In liver cells, (i) XH modified Kelch-like ECH-associated protein leading to nuclear factor (erythroid-derived 2)-like 2 (Nrf2) translocation and antioxidant response element (ARE) activation; (ii) hop-mediated ARE induction was partially mediated through phosphorylation of Nrf2 by PKC; (iii) in breast cells, 8-prenylnaringenin reduced NQO1 likely through binding to estrogen receptorα, recruiting Nrf2, and downregulating ARE-regulated genes. CONCLUSION XH and 8-prenylnaringenin in dietary hops are bioavailable to the target tissues. While hops and XH might be cytoprotective in the liver, 8-prenylnaringenin seems responsible for hop-mediated NQO1 reduction in the mammary gland.
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Affiliation(s)
- Birgit M Dietz
- UIC/NIH Center for Botanical Dietary Supplements Research, Department of Medicinal Chemistry and Pharmacognosy, University of Illinois at Chicago, Chicago, IL 60612, USA.
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27
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Quifer-Rada P, Martínez-Huélamo M, Jáuregui O, Chiva-Blanch G, Estruch R, Lamuela-Raventós RM. Analytical Condition Setting a Crucial Step in the Quantification of Unstable Polyphenols in Acidic Conditions: Analyzing Prenylflavanoids in Biological Samples by Liquid Chromatography–Electrospray Ionization Triple Quadruple Mass Spectrometry. Anal Chem 2013; 85:5547-54. [DOI: 10.1021/ac4007733] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Paola Quifer-Rada
- Department of Nutrition and
Food Science-XARTA-INSA, School of Pharmacy, University of Barcelona, Barcelona, Spain
- CIBER Physiopathology of Obesity
and Nutrition (CIBEROBN), Institute of Health Carlos III, Spain
| | - Miriam Martínez-Huélamo
- Department of Nutrition and
Food Science-XARTA-INSA, School of Pharmacy, University of Barcelona, Barcelona, Spain
- CIBER Physiopathology of Obesity
and Nutrition (CIBEROBN), Institute of Health Carlos III, Spain
| | - Olga Jáuregui
- Scientific and Technological Center of University of Barcelona (CCiTUB), Barcelona,
Spain
| | - Gemma Chiva-Blanch
- CIBER Physiopathology of Obesity
and Nutrition (CIBEROBN), Institute of Health Carlos III, Spain
- Department of Internal
Medicine,
Hospital Clinic, Institute of Biomedical Investigation August Pi i
Sunyer (IDIBAPS), University of Barcelona, Spain
| | - Ramón Estruch
- CIBER Physiopathology of Obesity
and Nutrition (CIBEROBN), Institute of Health Carlos III, Spain
- Department of Internal
Medicine,
Hospital Clinic, Institute of Biomedical Investigation August Pi i
Sunyer (IDIBAPS), University of Barcelona, Spain
| | - Rosa M. Lamuela-Raventós
- Department of Nutrition and
Food Science-XARTA-INSA, School of Pharmacy, University of Barcelona, Barcelona, Spain
- CIBER Physiopathology of Obesity
and Nutrition (CIBEROBN), Institute of Health Carlos III, Spain
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28
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Doddapattar P, Radović B, Patankar JV, Obrowsky S, Jandl K, Nusshold C, Kolb D, Vujić N, Doshi L, Chandak PG, Goeritzer M, Ahammer H, Hoefler G, Sattler W, Kratky D. Xanthohumol ameliorates atherosclerotic plaque formation, hypercholesterolemia, and hepatic steatosis in ApoE-deficient mice. Mol Nutr Food Res 2013; 57:1718-28. [PMID: 23650230 DOI: 10.1002/mnfr.201200794] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2012] [Revised: 03/05/2013] [Accepted: 03/13/2013] [Indexed: 01/05/2023]
Abstract
SCOPE Xanthohumol (XN), a prenylated antioxidative and anti-inflammatory chalcone from hops, exhibits positive effects on lipid and glucose metabolism. Based on its favorable biological properties, we investigated whether XN attenuates atherosclerosis in western-type diet-fed apolipoprotein-E-deficient (ApoE⁻/⁻) mice. METHODS AND RESULTS XN supplementation markedly reduced plasma cholesterol concentrations, decreased atherosclerotic lesion area, and attenuated plasma concentrations of the proinflammatory cytokine monocyte chemoattractant protein 1. Decreased hepatic triglyceride and cholesterol content, activation of AMP-activated protein kinase, phosphorylation and inactivation of acetyl-CoA carboxylase, and reduced expression levels of mature sterol regulatory element-binding protein (SREBP)-2 and SREBP-1c mRNA indicate reduced lipogenesis in the liver of XN-fed ApoE⁻/⁻ mice. Concomitant induction of hepatic mRNA expression of carnitine palmitoyltransferase-1a in ApoE⁻/⁻ mice-administered XN suggests increased fatty acid beta-oxidation. Fecal cholesterol concentrations were also markedly increased in XN-fed ApoE⁻/⁻ mice compared with mice fed western-type diet alone. CONCLUSION The atheroprotective effects of XN might be attributed to combined beneficial effects on plasma cholesterol and monocyte chemoattractant protein 1 concentrations and hepatic lipid metabolism via activation of AMP-activated protein kinase.
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Affiliation(s)
- Prakash Doddapattar
- Institute of Molecular Biology and Biochemistry, Center of Molecular Medicine, Medical University of Graz, Graz, Austria
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Wyns C, van Steendam K, Vanhoecke B, Deforce D, Bracke M, Heyerick A. Prenylated chalcone xanthohumol associates with histones in breast cancer cells-a novel target identified by a monoclonal antibody. Mol Nutr Food Res 2012; 56:1688-96. [DOI: 10.1002/mnfr.201200030] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2012] [Revised: 07/31/2012] [Accepted: 08/10/2012] [Indexed: 11/06/2022]
Affiliation(s)
- Ciska Wyns
- Laboratory of Pharmacognosy and Phytochemistry, Faculty of Pharmaceutical Sciences; Ghent University; Ghent Belgium
| | - Katleen van Steendam
- Laboratory of Pharmaceutical Biotechnology, Faculty of Pharmaceutical Sciences; Ghent University; Ghent Belgium
| | - Barbara Vanhoecke
- Department of Radiation Oncology and Experimental Cancer Research, Laboratory of Experimental Cancer Research; Ghent University Hospital; Ghent Belgium
| | - Dieter Deforce
- Laboratory of Pharmacognosy and Phytochemistry, Faculty of Pharmaceutical Sciences; Ghent University; Ghent Belgium
- Laboratory of Pharmaceutical Biotechnology, Faculty of Pharmaceutical Sciences; Ghent University; Ghent Belgium
| | - Marc Bracke
- Department of Radiation Oncology and Experimental Cancer Research, Laboratory of Experimental Cancer Research; Ghent University Hospital; Ghent Belgium
| | - Arne Heyerick
- Laboratory of Pharmacognosy and Phytochemistry, Faculty of Pharmaceutical Sciences; Ghent University; Ghent Belgium
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Rudzitis-Auth J, Körbel C, Scheuer C, Menger MD, Laschke MW. Xanthohumol inhibits growth and vascularization of developing endometriotic lesions. Hum Reprod 2012; 27:1735-44. [PMID: 22447626 DOI: 10.1093/humrep/des095] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Xanthohumol is a prenylated flavonoid isolated from hops, which is known to act as a pleiotropic cancer chemopreventive agent owing to its anti-proliferative, anti-inflammatory and anti-angiogenic properties. In the present study, we analyzed, for the first time, whether this dietary compound may also be used for the treatment of endometriosis. METHODS Peritoneal and mesenteric endometriotic lesions were surgically induced in BALB/c mice by uterine tissue transplantation into the abdominal cavity. The animals were treated daily with 100 µM xanthohumol (n= 8) or vehicle (control, n= 8) via the drinking water, starting 3 days before tissue transplantations. Lesion growth, cyst formation and vascularization were subsequently analyzed by means of high-resolution ultrasound imaging (at Day 0 and then once per week for 28 days), caliper measurements, western blotting, histology and immunohistochemistry over 4 weeks. RESULTS In the treatment and control groups, uterine grafts developed typical endometriotic lesions with cyst-like dilated glands surrounded by a vascularized endometrial stroma. However, xanthohumol efficiently decreased the size of these lesions at Day 28, independent of their localization within the peritoneal cavity, compared with control (peritoneal: P =0.041; mesenteric: P =0.038). This was associated with a reduced level of phosphoinositide 3-kinase protein. Moreover, vascularization of xanthohumol-treated lesions was suppressed, as indicated by a significantly lower microvessel density at Day 28 when compared with vehicle-treated controls (peritoneal: P =0.026; mesenteric: P =0.004). Additional analyses revealed that treatment with xanthohumol did not affect the histomorphology, proliferation and vascularization of the uterine horns and ovaries. CONCLUSIONS Taken together, these experimental findings suggest that xanthohumol inhibits the development of endometriotic lesions in mice without inducing serious side effects in the reproductive organs. Thus, xanthohumol represents a promising dietary phytochemical that, after further testing, may be considered for the use in the selective treatment of endometriotic lesions.
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Affiliation(s)
- J Rudzitis-Auth
- Institute for Clinical & Experimental Surgery, University of Saarland, Saar, Germany.
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Matoušek J, Kocábek T, Patzak J, Füssy Z, Procházková J, Heyerick A. Combinatorial analysis of lupulin gland transcription factors from R2R3Myb, bHLH and WDR families indicates a complex regulation of chs_H1 genes essential for prenylflavonoid biosynthesis in hop (Humulus Lupulus L.). BMC PLANT BIOLOGY 2012; 12:27. [PMID: 22340661 PMCID: PMC3340318 DOI: 10.1186/1471-2229-12-27] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2011] [Accepted: 02/20/2012] [Indexed: 05/10/2023]
Abstract
BACKGROUND Lupulin glands of hop produce a specific metabolome including hop bitter acids valuable for the brewing process and prenylflavonoids with promising health-beneficial activities. The detailed analysis of the transcription factor (TF)-mediated regulation of the oligofamily of one of the key enzymes, i.e., chalcone synthase CHS_H1 that efficiently catalyzes the production of naringenin chalcone, a direct precursor of prenylflavonoids in hop, constitutes an important part of the dissection of the biosynthetic pathways leading to the accumulation of these compounds. RESULTS Homologues of flavonoid-regulating TFs HlMyb2 (M2), HlbHLH2 (B2) and HlWDR1 (W1) from hop were cloned using a lupulin gland-specific cDNA library from the hop variety Osvald's 72. Using a "combinatorial" transient GUS expression system it was shown that these unique lupulin-gland-associated TFs significantly activated the promoter (P) of chs_H1 in ternary combinations of B2, W1 and either M2 or the previously characterized HlMyb3 (M3). The promoter activation was strongly dependent on the Myb-P binding box TCCTACC having a core sequence CCWACC positioned on its 5' end region and it seems that the complexity of the promoter plays an important role. M2B2W1-mediated activation significantly exceeded the strength of expression of native chs_H1 gene driven by the 35S promoter of CaMV, while M3B2W1 resulted in 30% of the 35S:chs_H1 expression level, as quantified by real-time PCR. Another newly cloned hop TF, HlMyb7, containing a transcriptional repressor-like motif pdLNLD/ELxiG/S (PDLNLELRIS), was identified as an efficient inhibitor of chs_H1-activating TFs. Comparative analyses of hop and A. thaliana TFs revealed a complex activation of Pchs_H1 and Pchs4 in combinatorial or independent manners. CONCLUSIONS This study on the sequences and functions of various lupulin gland-specific transcription factors provides insight into the complex character of the regulation of the chs_H1 gene that depends on variable activation by combinations of R2R3Myb, bHLH and WDR TF homologues and inhibition by a Myb repressor.
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Affiliation(s)
- Jaroslav Matoušek
- Biology Centre ASCR v.v.i, Institute of Plant Molecular Biology, Branišovská 31, 370 05 České Budějovice, Czech Republic
- Faculty of Science, University of South Bohemia, Branišovská 31, 370 05 České Budějovice, Czech Republic
| | - Tomáš Kocábek
- Biology Centre ASCR v.v.i, Institute of Plant Molecular Biology, Branišovská 31, 370 05 České Budějovice, Czech Republic
| | - Josef Patzak
- Hop Research Institute, Co. Ltd, Kadaňská 2525, 438 46 Žatec, Czech Republic
| | - Zoltán Füssy
- Biology Centre ASCR v.v.i, Institute of Plant Molecular Biology, Branišovská 31, 370 05 České Budějovice, Czech Republic
- Faculty of Science, University of South Bohemia, Branišovská 31, 370 05 České Budějovice, Czech Republic
| | - Jitka Procházková
- Biology Centre ASCR v.v.i, Institute of Plant Molecular Biology, Branišovská 31, 370 05 České Budějovice, Czech Republic
| | - Arne Heyerick
- Laboratory of Pharmacognosy and Phytochemistry, Faculty of Pharmaceutical Sciences, Ghent University, Harelbekestraat 72, B-9000 Ghent, Belgium
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Wu B, Kulkarni K, Basu S, Zhang S, Hu M. First-pass metabolism via UDP-glucuronosyltransferase: a barrier to oral bioavailability of phenolics. J Pharm Sci 2011; 100:3655-81. [PMID: 21484808 DOI: 10.1002/jps.22568] [Citation(s) in RCA: 204] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2011] [Revised: 03/10/2011] [Accepted: 03/10/2011] [Indexed: 12/11/2022]
Abstract
Glucuronidation mediated by UDP-glucuronosyltransferases (UGTs) is a significant metabolic pathway that facilitates efficient elimination of numerous endobiotics and xenobiotics, including phenolics. UGT genetic deficiency and polymorphisms or inhibition of glucuronidation by concomitant use of drugs are associated with inherited physiological disorders or drug-induced toxicities. Moreover, extensive glucuronidation can be a barrier to oral bioavailability as the first-pass glucuronidation (or premature clearance by UGTs) of orally administered agents usually results in the poor oral bioavailability and lack of efficacies. This review focused on the first-pass glucuronidation of phenolics including natural polyphenols and pharmaceuticals. The complexity of UGT-mediated metabolism of phenolics is highlighted with species-, gender-, organ- and isoform-dependent specificity, as well as functional compensation between UGT1A and 2B subfamily. In addition, recent advances are discussed with respect to the mechanisms of enzymatic actions, including the important properties such as binding pocket size and phosphorylation requirements.
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Affiliation(s)
- Baojian Wu
- Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy, University of Houston, Houston, Texas 77030, USA
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Hanske L, Loh G, Sczesny S, Blaut M, Braune A. Recovery and metabolism of xanthohumol in germ-free and human microbiota-associated rats. Mol Nutr Food Res 2011; 54:1405-13. [PMID: 20397197 DOI: 10.1002/mnfr.200900517] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The impact of human intestinal bacteria on the bioavailability of the prenylflavonoid xanthohumol (XN) was studied by comparing germ-free (GF) and human microbiota-associated (HMA) rats. After XN application, XN, XN conjugates, and isoxanthohumol (IX) conjugates occurred in blood samples of GF and HMA rats, whereas IX was detected only in the blood of HMA rats. Overall excretion of XN and its metabolites within 48 h was only 4.6% of the ingested dose in GF rats and 4.2% in HMA rats, feces being the major route of excretion. While both GF and HMA rats excreted XN, IX, and their conjugates with urine and feces, 8-prenylnaringenin and its corresponding conjugates were exclusively observed in the feces of HMA rats. The microbial formation of 8-prenylnaringenin was confirmed by incubation of XN and IX with human fecal slurries. The amount of conjugates excreted in urine and feces was lower in HMA rats compared to GF rats indicating their hydrolysis by human intestinal microbiota. Thus, the impact of bacteria on the XN metabolism in the gut may affect the in vivo effects of ingested XN.
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Affiliation(s)
- Laura Hanske
- Department of Gastrointestinal Microbiology, German Institute of Human Nutrition Potsdam-Rehbruecke, Nuthetal, Germany
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Xuan NT, Shumilina E, Gulbins E, Gu S, Götz F, Lang F. Triggering of dendritic cell apoptosis by xanthohumol. Mol Nutr Food Res 2010; 54 Suppl 2:S214-24. [PMID: 20333722 DOI: 10.1002/mnfr.200900324] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Xanthohumol, a flavonoid from beer with anticancer activity is known to trigger apoptosis in a variety of tumor cells. Xanthohumol further has anti-inflammatory activity. However, little is known about the effect of xanthohumol on survival and function of immune cells. The present study thus addressed the effect of xanthohumol on dendritic cells (DCs), key players in the regulation of innate and adaptive immunity. To this end, mouse bone marrow-derived DCs were treated with xanthohumol with subsequent assessment of enzymatic activity of acid sphingomyelinase (Asm), ceramide formation determined with anti-ceramide antibodies in FACS and immunohistochemical analysis, caspase activity utilizing FITC conjugated anti-active caspase 8 or caspase 3 antibodies in FACS and by Western blotting, DNA fragmentation by determining the percentage of cells in the sub-G1 phase and cell membrane scrambling by annexin V binding in FACS analysis. As a result, xanthohumol stimulated Asm, enhanced ceramide formation, activated caspases 8 and 3, triggered DNA fragmentation and led to cell membrane scrambling, all effects virtually absent in DCs from gene targeted mice lacking functional Asm or in wild-type cells treated with sphingomyelinase inhibitor amitriptyline. In conclusion, xanthohumol stimulated Asm leading to caspase activation and apoptosis of bone marrow-derived DCs.
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Affiliation(s)
- Nguyen Thi Xuan
- Department of Physiology, University of Tübingen, Tübingen, Germany
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Dorn C, Kraus B, Motyl M, Weiss TS, Gehrig M, Schölmerich J, Heilmann J, Hellerbrand C. Xanthohumol, a chalcon derived from hops, inhibits hepatic inflammation and fibrosis. Mol Nutr Food Res 2010; 54 Suppl 2:S205-13. [PMID: 20087858 DOI: 10.1002/mnfr.200900314] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Xanthohumol (XN) is a major prenylated chalcone found in hops, which is used to add bitterness and flavor to beer. In this study, we first investigated the effects of XN on hepatocytes and hepatic stellate cells (HSC), the central mediators of liver fibrogenesis. XN inhibited the activation of primary human HSC and induced apoptosis in activated HSC in vitro in a dose dependent manner (0-20 microM). In contrast, XN doses as high as 50 microM did not impair viability of primary human hepatocytes. However, in both cell types XN inhibited activation of the transcription factor NFkappaB and expression of NFkappaB dependent proinflammatory genes. In vivo, feeding of XN reduced hepatic inflammation and expression of profibrogenic genes in a murine model of non-alcoholic steatohepatitis. These data indicate that XN has the potential as functional nutrient for the prevention or treatment of non-alcoholic steatohepatitis or other chronic liver disease.
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Affiliation(s)
- Christoph Dorn
- Department of Internal Medicine I, University Hospital Regensburg, Regensburg, Germany
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Dorn C, Bataille F, Gaebele E, Heilmann J, Hellerbrand C. Xanthohumol feeding does not impair organ function and homoeostasis in mice. Food Chem Toxicol 2010; 48:1890-7. [DOI: 10.1016/j.fct.2010.04.030] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2009] [Revised: 04/13/2010] [Accepted: 04/20/2010] [Indexed: 01/12/2023]
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Qadri SM, Mahmud H, Föller M, Lang F. Inhibition of suicidal erythrocyte death by xanthohumol. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2009; 57:7591-7595. [PMID: 19642672 DOI: 10.1021/jf900773w] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Xanthohumol is a proapoptotic hop-derived beer component with anticancer and antimicrobial activities. Similar to nucleated cells, erythrocytes may undergo suicidal cell death or eryptosis, which is triggered by oxidative stress (tert-butylhydroperoxide, TBOOH) or energy depletion (removal of glucose). The triggers increase cytosolic Ca(2+) concentration, leading to activation of Ca(2+)-sensitive K(+) channels with subsequent cell shrinkage and to cell membrane scrambling with subsequent phosphatidylserine exposure at the erythrocyte surface. Eryptotic cells are cleared from the circulating blood, leading to anemia, and may adhere to the vascular wall, thus impeding microcirculation. The present experiments explored whether xanthohumol influences eryptosis using flow cytometry. Exposure of human erythrocytes to 0.3 mM TBOOH or incubation in glucose-free solution significantly increased Fluo3 fluorescence (Ca(2+) concentration) as well as annexin V-binding (cell membrane scrambling) and decreased forward scatter (cell volume), effects significantly blunted by xanthohumol. In conclusion, xanthohumol is a potent inhibitor of suicidal erythrocyte death in vitro.
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Affiliation(s)
- Syed M Qadri
- Department of Physiology, Eberhard-Karls-University of Tübingen, Tübingen, Germany
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Magalhães PJ, Carvalho DO, Cruz JM, Guido LF, Barros AA. Fundamentals and Health Benefits of Xanthohumol, a Natural Product Derived from Hops and Beer. Nat Prod Commun 2009. [DOI: 10.1177/1934578x0900400501] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
In recent years, there has been a growing interest in phenolic compounds and their presumed role in the prevention of various degenerative diseases, such as cancer and cardiovascular diseases. Xanthohumol, a prenylated chalcone from hops and beer, is among the phenolic compounds which have received the most attention in recent years. This compound has a range of interesting biological properties that may have therapeutic utility. Based on the health-promoting properties of xanthohumol, the production of a beer enriched in this substance would be of huge interest to the brewing industry, for the benefits this could bring to consumer's health. This paper reviews recent and important data with respect to the health benefits or biological activities of xanthohumol and beer. In addition, an overview of the chemistry and biotechnological aspects of xanthohumol is presented.
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Affiliation(s)
- Paulo J. Magalhães
- REQUIMTE – Departamento de Química da Faculdade de Ciências da Universidade do Porto, Rua do Campo Alegre, 687, 4169-007 Porto, Portugal
| | - Daniel O. Carvalho
- REQUIMTE – Departamento de Química da Faculdade de Ciências da Universidade do Porto, Rua do Campo Alegre, 687, 4169-007 Porto, Portugal
| | - José M. Cruz
- IBESA – Instituto de Bebidas e Saúde, apartado 1044, 4466-955 S. Mamede de Infesta, Portugal
| | - Luís F. Guido
- REQUIMTE – Departamento de Química da Faculdade de Ciências da Universidade do Porto, Rua do Campo Alegre, 687, 4169-007 Porto, Portugal
| | - Aquiles A. Barros
- REQUIMTE – Departamento de Química da Faculdade de Ciências da Universidade do Porto, Rua do Campo Alegre, 687, 4169-007 Porto, Portugal
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Cermak R, Durazzo A, Maiani G, Böhm V, Kammerer DR, Carle R, Wiczkowski W, Piskula MK, Galensa R. The influence of postharvest processing and storage of foodstuffs on the bioavailability of flavonoids and phenolic acids. Mol Nutr Food Res 2008; 53 Suppl 2:S184-93. [DOI: 10.1002/mnfr.200700444] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Pang Y, Nikolic D, Zhu D, Chadwick LR, Pauli GF, Farnsworth NR, van Breemen RB. Binding of the hop (Humulus lupulus L.) chalcone xanthohumol to cytosolic proteins in Caco-2 intestinal epithelial cells. Mol Nutr Food Res 2007; 51:872-9. [PMID: 17579893 DOI: 10.1002/mnfr.200600252] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Used in the brewing of beer, hops (Humulus lupulus L.) contain the prenylated chalcone xanthohumol, which is under investigation as a cancer chemoprevention agent and as a precursor for the estrogenic flavanones isoxanthohumol and 8-prenylnaringenin. The uptake, transport and accumulation of xanthohumol were studied using the human intestinal epithelial cell line Caco-2 to help understand the poor bioavailability of this chalcone. Studies were carried out using Caco-2 cell monolayers 18-21 days after seeding. The apparent K(m) and V(max) values of xanthohumol accumulation in Caco-2 cells were determined, and the protein binding of xanthohumol in sub-cellular fractions of Caco-2 cells was investigated. Approximately 70% of xanthohumol added to the apical side of Caco-2 cells accumulated inside the cells, while 93% of the intracellular xanthohumol was localized in the cytosol. Xanthohumol accumulation was temperature dependent and saturable with an apparent K(m )value of 26.5 +/- 4.66 muM and an apparent V(max) of 0.215 +/- 0.018 nmol/mg protein/min. Facilitated transport was not responsible for the uptake of xanthohumol, instead, accumulation inside the Caco-2 cells was apparently the result of specific binding to cytosolic proteins. These data suggest that specific binding of xanthohumol to cytosolic proteins in intestinal epithelial cells contributes to the poor oral bioavailability observed previously in vivo.
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Affiliation(s)
- Yan Pang
- Department of Medicinal Chemistry and Pharmacognosy, UIC/NIH Center for Botanical Dietary Supplements Research, University of Illinois College of Pharmacy, Chicago, IL 60612, USA
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Bolca S, Possemiers S, Maervoet V, Huybrechts I, Heyerick A, Vervarcke S, Depypere H, De Keukeleire D, Bracke M, De Henauw S, Verstraete W, Van de Wiele T. Microbial and dietary factors associated with the 8-prenylnaringenin producer phenotype: a dietary intervention trial with fifty healthy post-menopausal Caucasian women. Br J Nutr 2007; 98:950-9. [PMID: 17521469 DOI: 10.1017/s0007114507749243] [Citation(s) in RCA: 63] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Hop-derived food supplements and beers contain the prenylflavonoids xanthohumol (X), isoxanthohumol (IX) and the very potent phyto-oestrogen (plant-derived oestrogen mimic) 8-prenylnaringenin (8-PN). The weakly oestrogenic IX can be bioactivated via O-demethylation to 8-PN. Since IX usually predominates over 8-PN, human subjects may be exposed to increased doses of 8-PN. A dietary intervention trial with fifty healthy post-menopausal Caucasian women was undertaken. After a 4 d washout period, participants delivered faeces, blank urine and breath samples. Next, they started a 5 d treatment with hop-based supplements that were administered three times per d and on the last day, a 24 h urine sample was collected. A semi-quantitative FFQ was used to estimate fat, fibre, alcohol, caffeine and theobromine intakes. The recoveries of IX, 8-PN and X in the urine were low and considerable inter-individual variations were observed. A five-fold increase in the dosage of IX without change in 8-PN concentration resulted in a significant lower IX recovery and a higher 8-PN recovery. Classification of the subjects into poor (60%), moderate (25%) and strong (15%) 8-PN producers based on either urinary excretion or microbial bioactivation capacity gave comparable results. Recent antibiotic therapy seemed to affect the 8-PN production negatively. A positive trend between methane excretion and 8-PN production was observed. Strong 8-PN producers consumed less alcohol and had a higher theobromine intake. From this study we conclude that in vivo O-demethylation of IX increases the oestrogenic potency of hop-derived products.
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Affiliation(s)
- Selin Bolca
- Laboratory of Pharmacognosy and Phytochemistry, Faculty of Pharmaceutical Sciences, Ghent University, Harelbekestraat 72, B-9000 Ghent, Belgium
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Plazar J, Zegura B, Lah TT, Filipic M. Protective effects of xanthohumol against the genotoxicity of benzo(a)pyrene (BaP), 2-amino-3-methylimidazo[4,5-f]quinoline (IQ) and tert-butyl hydroperoxide (t-BOOH) in HepG2 human hepatoma cells. Mutat Res 2007; 632:1-8. [PMID: 17590382 DOI: 10.1016/j.mrgentox.2007.03.013] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2006] [Revised: 01/26/2007] [Accepted: 03/17/2007] [Indexed: 11/16/2022]
Abstract
Xanthohumol is the major prenylated flavonoid present in the hop plant Humulus lupulus L. (Cannabinaceae) and a common ingredient of beer. Recently, xanthohumol has gained considerable interest due to its potential cancer chemo-preventive effect. The aim of this study was to reveal the possible anti-genotoxic activity of xanthohumol in metabolically competent human hepatoma HepG2 cells, by use of the comet assay. Xanthohumol by itself was neither cytotoxic nor genotoxic to the cells at concentrations below 10microM. However, a significant protective effect against the pro-carcinogens benzo(a)pyrene (BaP) and 2-amino-3-methylimidazo[4,5-f]quinoline (IQ) was observed at concentrations as low as 0.01microM. In cells treated with xanthohumol in combination with tert-butyl hydroperoxide (t-BOOH) - an inducer of reactive oxygen species (ROS) - no protective effect was observed and xanthohumol also showed no significant scavenging activity against 1,1-diphenyl-2-picrylhydrazyl (DPPH) radicals. On the other hand, HepG2 cells pre-treated with xanthohumol showed significantly reduced levels of t-BOOH-induced DNA strand breaks, indicating that its protective effect is mediated by induction of cellular defence mechanisms against oxidative stress. As xanthohumol is known to be an effective inhibitor of cytochrome P450 enzymes and an inducer of NAD(P)H: quinone reductase (QR), our findings can be explained by an inhibition of metabolic activation of pro-carcinogens and/or by induction of carcinogen-detoxifying and anti-oxidative enzymes by xanthohumol. These results provide evidence that xanthohumol displays anti-genotoxic activity in metabolically competent human cells.
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Affiliation(s)
- Janja Plazar
- National Institute of Biology, Department for Genetic Toxicology and Cancer Biology, Vecna pot 111, 1000 Ljubljana, Slovenia
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Kac J, Vovk T. Sensitive electrochemical detection method for α-acids, β-acids and xanthohumol in hops (Humulus lupulus L.). J Chromatogr B Analyt Technol Biomed Life Sci 2007; 850:531-7. [PMID: 17142112 DOI: 10.1016/j.jchromb.2006.11.017] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2006] [Revised: 11/10/2006] [Accepted: 11/14/2006] [Indexed: 10/23/2022]
Abstract
A new HPLC method with coulometric detection for the quantification of xanthohumol, alpha-acids and beta-acids in hops was developed. The separation of compounds was accomplished with a C18 column and isocratic elution with methanol: 50 mM potassium phosphate: ortho-phosphoric acid=80:20:0.25 (v/v/v). The method was validated and UV and electrochemical detectors (ECD) were compared. The HPLC method with ECD was precise, accurate and very sensitive for detection of xanthohumol and alpha- and beta-acids. The detection limits of analytes were at least 8.8 to 24 times lower with ECD than those of the UV detector. The ECD method was successfully applied for quantification of studied compounds in hop pellets. The concentrations of all compounds obtained with ECD and UV were found to be equivalent. This is the first study demonstrating a very sensitive and validated method for the quantification of xanthohumol, alpha- or beta-acids in hop samples with the use of the electrochemical detector.
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Affiliation(s)
- Javor Kac
- Faculty of Pharmacy, University of Ljubljana, Askerceva 7, SI-1000 Ljubljana, Slovenia.
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Gerhäuser C. Beer constituents as potential cancer chemopreventive agents. Eur J Cancer 2005; 41:1941-54. [PMID: 15953717 DOI: 10.1016/j.ejca.2005.04.012] [Citation(s) in RCA: 291] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2005] [Accepted: 04/01/2005] [Indexed: 11/20/2022]
Abstract
Beer is a complex alcoholic beverage made from barley (malt), hop, water and yeast. Phenolic constituents of beer are derived from malt (70-80%) and hop (20-30%). Structural classes include simple phenols, benzoic- and cinnamic acid derivatives, coumarins, catechins, di-, tri- and oligomeric proanthocyanidins, (prenylated) chalcones and flavonoids as well as alpha- and iso-alpha-acids derived from hop. Compounds belonging to different structural classes have distinct profiles of biological activity in in vitro test systems, and in combination might lead to enhanced effects. Scientific evidence has accumulated over the past 10 years pointing to the cancer preventive potential of selected hop-derived beer constituents, i.e., prenylflavonoids including xanthohumol and isoxanthohumol, and hop bitter acids. Chemopreventive activities observed with these compounds relevant to inhibition of carcinogenesis at the initiation, promotion and progression phases, as well as results from in vivo studies on metabolism, bioavailability and efficacy are summarised in this review.
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Affiliation(s)
- Clarissa Gerhäuser
- Deutsches Krebsforschungszentrum (DKFZ), Abteilung Toxikologie und Krebsrisikofaktoren, Im Neuenheimer Feld 280, 69120 Heidelberg, Germany.
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Hussong R, Frank N, Knauft J, Ittrich C, Owen R, Becker H, Gerhäuser C. A safety study of oral xanthohumol administration and its influence on fertility in Sprague Dawley rats. Mol Nutr Food Res 2005; 49:861-7. [PMID: 16092070 DOI: 10.1002/mnfr.200500089] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Xanthohumol (XN) is a prenylated chalcone, which has been shown to possess a broad range of potential cancer preventive and additional biological activities. In the present study, we have determined the subchronic 4-wk toxicity of XN and monitored its influence on fertility and development of offspring in two fertility studies. Four-week-old female Sprague Dawley (SD) rats were treated with 0.5% XN in the diet or with 1,000 mg XN/kg body weight (b.w.) per day by gavage for 28 days. No remarkable treatment-related changes in general appearance and b.w. occurred during the study. After autopsy, liver, kidney, lung, heart, stomach, and spleen were examined macroscopically and histopathologically. Relative liver weights of animals in both treatment groups were significantly reduced by 30--40% in comparison with the control group, indicating weak hepatotoxicity. Also, mammary glands of treated rats appeared less developed compared to the controls. Consequently, we investigated the influence of XN on rat reproduction. In two fertility studies, XN (100 mg/kg b.w. per day), given either for 4 wk prior to or during mating, gestation, and nursing, did not cause any adverse effects on female reproduction and the development of offspring. Noteworthy, treatment of male rats prior to mating significantly (p=0.027) increased the sex ratio of male to female offspring. Overall, lifelong treatment at a daily dose of 100 mg/kg b.w. in a two-generation study did not affect the development of SD rats.
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Affiliation(s)
- Ragna Hussong
- Division of Toxicology and Cancer Risk Factors, Deutsches Krebsforschungszentrum, Heidelberg, Germany
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Ruefer CE, Gerhäuser C, Frank N, Becker H, Kulling SE. In vitro phase II metabolism of xanthohumol by human UDP-glucuronosyltransferases and sulfotransferases. Mol Nutr Food Res 2005; 49:851-6. [PMID: 16092069 DOI: 10.1002/mnfr.200500057] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Xanthohumol (XN) is the principal prenylated flavonoid of the hop plant and has recently gained considerable interest due to its potential cancer-chemopreventive effects. However, the metabolism of XN has not yet been investigated in detail. Therefore, we studied the in vitro phase II metabolism of XN using nine human recombinant UDP-glucuronosyltransferases (UGT) and five sulfotransferases (SULT). The identification of the metabolites formed was elucidated using HPLC with diode array detection as well as HPLC/API-ES MS. XN was efficiently glucuronidated by UGT 1 A 8, 1 A 9, and 1 A 10; further important UGTs were UGT 1 A 1, 1 A 7, and 2 B 7. With respect to the sulfation reaction, SULT 1 A 1*2, 1 A 2, and 1 E 1 were the most active SULT forms. UGT 1 A 3, 1 A 4, and 1 A 6 as well as SULT 1 A 3 and 2 A 1 were of minor importance for the conjugation of XN. Three mono-glucuronides as well as three mono-sulfates were identified. Considering the tissue distribution of the tested UGT and SULT enzyme forms, these findings suggest a prominent role for the glucuronidation and sulfation of XN in the liver as well as in the gastrointestinal tract.
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Affiliation(s)
- Corinna E Ruefer
- Institute of Nutritional Physiology, Federal Research Centre for Nutrition and Food, Karlsruhe, Germany
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Pan L, Becker H, Gerhäuser C. Xanthohumol induces apoptosis in cultured 40-16 human colon cancer cells by activation of the death receptor- and mitochondrial pathway. Mol Nutr Food Res 2005; 49:837-43. [PMID: 15995977 DOI: 10.1002/mnfr.200500065] [Citation(s) in RCA: 118] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Xanthohumol (XN) is one of the major prenylflavonoids found in hop cones (Humulus lupulus L.). In this study, we investigated the cell growth inhibitory potential of XN on cultured human colon cancer cells. Cell proliferation was measured by sulforhodamine B staining. Poly(ADP-ribose)polymerase (PARP) cleavage, activation of caspases-3, -7, -8, and -9, and Bcl-2 family protein expression were detected by Western blot analyses. XN significantly reduced proliferation of the HCT 116-derived colon cancer cell line 40--16. Half-maximal inhibitory concentrations decreased from 4.1 microM after 24 h treatment to 3.6 and 2.6 microM after 48 and 72 h incubation, respectively. Treatment with 15 microM XN for 48 h and with 5 microM for 72 h led to the detection of the cleaved 89 kDa fragment of 116 kDa PARP as an indication of apoptosis induction. Concomitantly, we observed activation and cleavage of the effector caspases-3 and -7, induced by activation of the initiator caspases -8 and -9. Expression of anti-apoptotic Bcl-2 was down regulated when the cells were treated with XN for 48--72 h. We conclude that induction of apoptosis by downregulation of Bcl-2 and activation of the caspase cascade may contribute to the chemopreventive or therapeutic potential of XN.
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Affiliation(s)
- Lydia Pan
- Division of Toxicology and Cancer Risk Factors, German Cancer Research Center, Heidelberg, Germany
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Hanske L, Hussong R, Frank N, Gerhäuser C, Blaut M, Braune A. Xanthohumol does not affect the composition of rat intestinal microbiota. Mol Nutr Food Res 2005; 49:868-73. [PMID: 16092067 DOI: 10.1002/mnfr.200500048] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Xanthohumol (XN), a prenylated chalcone, has been proposed to have beneficial effects on human health, including antimicrobial activity. To clarify whether the exposure to XN has an impact on the composition of the intestinal microbiota, 100 mg XN/kg body weight was given daily to rats for 4 wk. Diversity of the fecal microbial community was analyzed using PCR-DGGE. Although intact XN was detected in the feces of the rats at a concentration of up to 2.3 mg/g fecal dry weight, major shifts in the PCR-DGGE patterns in response to this flavonoid were not observed. The similarity index decreased slightly from 70 to 62% for the XN-treated rats and from 71 to 63% for the untreated animals. Thus, changes in the rat fecal microbiota observed in the course of the XN application are most likely due to intraindividual variability. However, the water content of the feces increased significantly during the XN treatment period.
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Affiliation(s)
- Laura Hanske
- Department of Gastrointestinal Microbiology, German Institute of Human Nutrition Potsdam-Rehbruecke, Nuthetal, Germany
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Berwanger S, Frank N, Knauft J, Becker H. Biosynthetic14C-labelling of xanthohumol in hop cones. Mol Nutr Food Res 2005; 49:857-60. [PMID: 16092066 DOI: 10.1002/mnfr.200500040] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Xanthohumol (Xn) has well-established chemopreventive potential in vitro. In order to carry out in vivo bioavailability and tissue distribution studies,( 14)C-labelled Xn was produced by biolabelling. Supplying hop sprouts with 5 mCi [U-(14)C]glucose led to incorporation of (14)C into Xn. Delivering the radioactive precursor at once resulted in Xn with a specific activity of 318 microCi.mmol(-1); if however the amount was supplied in aliquots over 4 days a specific activity of only 53.1 microCi.mmol(-1) Xn was obtained.
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Affiliation(s)
- Stefanie Berwanger
- Pharmakognosie und Analytische Phytochemie, Universität des Saarlandes, Saarbrücken, Germany
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Gerhäuser C. Broad spectrum antiinfective potential of xanthohumol from hop (Humulus lupulus L.) in comparison with activities of other hop constituents and xanthohumol metabolites. Mol Nutr Food Res 2005; 49:827-31. [PMID: 16092071 DOI: 10.1002/mnfr.200500091] [Citation(s) in RCA: 99] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
This review summarizes the capacity of xanthohumol (XN) in comparison with additional hop constituents and metabolites to act as an antiinfective agent against microorganisms including bacteria, viruses, fungi and malarial protozoa. XN was shown to inhibit the Gram-positive bacteria Staphylococcus aureus and Streptococcus mutans. Antiviral activity was demonstrated against bovine viral diarrhea virus, cytomegalovirus, herpes simplex virus type 1 and 2 and human immunodeficiency virus 1. Inhibition of two Trichophyton spp. was indicative of antifungal activity. Finally, XN potently inhibited the replication of Plasmodium falciparum, the causative agent of malaria. This effect was linked to the inhibition of glutathione-mediated degradation and detoxification of haemin, a by-product of the parasitic digestion of haemoglobin. Overall, these activities further contribute to the broad spectrum of biological effects observed with XN.
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Affiliation(s)
- Clarissa Gerhäuser
- Division of Toxicology and Cancer Risk Factors, German Cancer Research Center, Heidelberg, Germany.
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