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Meyer D, Morlock GE. Concept of a six-fold multiplex planar bioassay to distinguish endocrine agonist, antagonist, cytotoxic and false-positive responses. Talanta 2024; 275:126174. [PMID: 38705021 DOI: 10.1016/j.talanta.2024.126174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 04/21/2024] [Accepted: 04/25/2024] [Indexed: 05/07/2024]
Abstract
To analyze a complex sample for endocrine activity, different tests must be performed to clarify androgen/estrogen agonism, antagonism, cytotoxicity, anti-cytotoxicity, and corresponding false-positive reactions. This means a large amount of work. Therefore, a six-fold planar multiplex bioassay concept was developed to evaluate up to the mentioned six endpoints or mechanisms simultaneously in the same sample analysis. Separation of active constituents from interfering matrix via high-performance thin-layer chromatography and effect differentiation via four vertical stripes (of agonists and end-products of the respective enzyme-substrate reaction) applied along each separated sample track were key to success. First, duplex endocrine bioassay versions were established. For the androgen/anti-androgen bioassay applied via piezoelectric spraying, the mean limit of biological detection of bisphenol A was 14 ng/band and its mean half maximal inhibitory concentration IC50 was 116 ng/band. Applied to trace analysis of six migrate samples from food packaging materials, 19 compound zones with agonistic or antagonistic estrogen/androgen activities were detected, with up to seven active compound zones within one migrate. For the first time, the S9 metabolism of endocrine effective compounds was studied on the same surface and revealed partial deactivation. Coupled to high-resolution mass spectrometry, molecular formulas were tentatively assigned to compounds, known to be present in packaging materials or endocrine active or previously unknown. Finally, the detection of cytotoxicity/anti-cytotoxicity and false-positives was integrated into the duplex androgen/anti-androgen bioassay. The resulting six-fold multiplex planar bioassay was evaluated with positive control standards and successfully applied to one migrate sample. The streamlined stripe concept for multiplex planar bioassays made it possible to assign different mechanisms to individual active compounds in a complex sample. The concept is generic and can be transferred to other assays.
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Affiliation(s)
- Daniel Meyer
- Institute of Nutritional Science, Chair of Food Science, Justus Liebig University Giessen, Heinrich-Buff-Ring 26-32, 35392, Giessen, Germany
| | - Gertrud E Morlock
- Institute of Nutritional Science, Chair of Food Science, Justus Liebig University Giessen, Heinrich-Buff-Ring 26-32, 35392, Giessen, Germany; Center for Sustainable Food Systems, Justus Liebig University Giessen, Senckenbergstr. 3, 35390, Giessen, Germany.
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Kruse S, Becker S, Pierre F, Morlock GE. Metabolic profiling of bacterial co-cultures reveals intermicrobiome interactions and dominant species. J Chromatogr A 2023; 1694:463911. [PMID: 36931138 DOI: 10.1016/j.chroma.2023.463911] [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: 10/26/2022] [Revised: 02/10/2023] [Accepted: 03/02/2023] [Indexed: 03/08/2023]
Abstract
In animal production, the use of probiotic microorganisms has increased since the ban on antibiotic growth promoters in 2006. The added microorganisms interact with the microbiome of the animals, whereby the probiotic activity is not fully understood. Several microorganisms of the genus Bacillus are already known for their probiotic activity and are applied as feed supplements to increase the health status of the animals. They are thought to interact with Escherichia coli, one of the most abundant bacteria in the animal gut. In biotechnological applications, co-culturing enables the regulation of bacterial interaction or the production of target metabolites. The basic principles of multi-imaging high-performance thin-layer chromatography (HPTLC) with upstream cultivation were further developed to analyze the metabolic profiles of three axenic bacilli cultures compared to their co-cultures with E. coli DSM 18039 (K12). The comparative profiling visualized bacteria's metabolic interactions and showed how the presence of E. coli affects the metabolite formation of bacilli. The characteristic metabolic profile images showed not only the influence of microbiomes but also of inoculation, cultivation and nutrients on the commercial probiotic. The formation of antimicrobially active metabolites, detected via three different planar bioassays, was influenced by the presence of other microorganisms, especially in the probiotic. This first application of multi-imaging HPTLC in the field of co-culturing enabled visualization of metabolic interactions of bacteria via their produced chemical as well as bioactive metabolite profiles. The metabolic profiling provided evidence of bacterial interactions, intermicrobiome influences and dominant species in the co-culture.
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Affiliation(s)
- Stefanie Kruse
- Institute of Nutritional Science, Chair of Food Science, and Interdisciplinary Research Centre for Biosystems, Land Use and Nutrition, Justus Liebig University Giessen, Heinrich-Buff-Ring 26-32, 35392 Giessen, Germany
| | - Selina Becker
- Institute of Nutritional Science, Chair of Food Science, and Interdisciplinary Research Centre for Biosystems, Land Use and Nutrition, Justus Liebig University Giessen, Heinrich-Buff-Ring 26-32, 35392 Giessen, Germany
| | - Francis Pierre
- Adisseo France S.A.S, Immeuble Anthony Parc 2, 10 Place du Général de Gaulle, 92160 Antony, France
| | - Gertrud E Morlock
- Institute of Nutritional Science, Chair of Food Science, and Interdisciplinary Research Centre for Biosystems, Land Use and Nutrition, Justus Liebig University Giessen, Heinrich-Buff-Ring 26-32, 35392 Giessen, Germany.
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Suleiman WB, Shehata RM, Younis AM. In vitro assessment of multipotential therapeutic importance of Hericium erinaceus mushroom extracts using different solvents. BIORESOUR BIOPROCESS 2022; 9:99. [PMID: 38647811 PMCID: PMC10991866 DOI: 10.1186/s40643-022-00592-6] [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: 05/24/2022] [Accepted: 09/05/2022] [Indexed: 11/10/2022] Open
Abstract
Infectious disease is one of the major threats to humans and it is the second leading cause of death worldwide. Edible mushrooms have many nutritional and medicinal values to human health. The medicinal properties of edible mushroom extract in inhibiting pathogenic microorganisms had advantages over the use of chemically synthetic antimicrobial compounds due to less unwanted side effects and can combat microbial resistance. This study hypothesized that the polarity affects the extraction quality of Hericium erinaceus fruiting bodies which was prepared and subsequently affects its activity as an antimicrobial against six tested microorganisms, including MRSA, and Streptococcus mutans, Enterobacter cloaca, Salmonella typhimurium, and Candida lipolytica; antiviral against Hepatitis A virus (HAV) virus; antioxidant using 2,2-diphenyl-1-picrylhydrazyl (DPPH) free radical scavenging assay; and anti-inflammatory potential. So, the mushroom was quantitatively evaluated to assess its content of flavonoids, alkaloids, tannins, saponins, carbohydrates, protein, nitrogen, and oil. The current research clarified here that aquatic extract has a significant activity as an antioxidant (IC50 = 53.7 µg/mL) and antiviral (IC50 = 24.97 µg/mL), while ethyl acetate extract showed a reasonable antimicrobial activity rather than all tested extract against tested microorganisms. Unfortunately, all extracts under investigation possess low anti-inflammatory action according to the adopting protocol. The superior results of both water and ethyl acetate extracts were later investigated by HPTLC and GC-MS for preliminary prediction of the chemical constitution of those extracts. H. erinaceus mushroom succeeded to establish promising antimicrobial, antiviral, and antioxidant activities while it has low anti-inflammatory activity. Both HPTLC and GC-MS could identify the chemical constituents of the mushroom crude extract.
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Affiliation(s)
- Waleed Bakry Suleiman
- Botany and Microbiology Department, Faculty of Science (Boys), Al-Azhar University, The Permanent Camp St., 6th Ward, Nasr City, 11884, Cairo, Egypt.
| | - Reda M Shehata
- The Regional Center for Mycology and Biotechnology (RCMB), Al-Azhar University, Cairo, Egypt
| | - Ahmed M Younis
- Botany and Microbiology Department, Faculty of Science (Boys), Al-Azhar University, The Permanent Camp St., 6th Ward, Nasr City, 11884, Cairo, Egypt
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4
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Enhanced Erinacine A Production by Hericium erinaceus Using Solid-State Cultivation. FERMENTATION 2021. [DOI: 10.3390/fermentation7030182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Hericium erinaceus (HE) is a large edible medicinal fungus. Erinacine A (ErA) is a secondary metabolite presented in the mycelia of HE, with pharmacological effects as a nerve growth factor on the central nervous system. In this study, solid-state cultivation of HE was carried out in Petri dishes and glass jars for the production of mycelial biomass and ErA. The potato dextrose agar (PDA) had the highest mycelial biomass at an optimal temperature of 25 °C, but no ErA was found in the agar media. In glass jar cultivation, the mycelial biomass and specific yield of ErA in different substrates, particle sizes, substrate weights, nitrogen sources, and inorganic salts were investigated. The ErA was purified by a self-pack silica gel column and a semi-preparative HPLC and was identified by liquid chromatography-tandem mass spectrometer. The best conditions for solid-state cultivation of HE when using corn kernel as substrate, particle size less than 2.38 mm, and addition of 10mM ZnSO4, 7H2O, mycelial biomass of 50.24 mg cell dry weight/g substrate was obtained, in addition, the specific yield of ErA could reach 165.36 mg/g cell dry weight.
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Tsai PC, Wu YK, Hu JH, Li IC, Lin TW, Chen CC, Kuo CF. Preclinical Bioavailability, Tissue Distribution, and Protein Binding Studies of Erinacine A, a Bioactive Compound from Hericium erinaceus Mycelia Using Validated LC-MS/MS Method. Molecules 2021; 26:molecules26154510. [PMID: 34361662 PMCID: PMC8347307 DOI: 10.3390/molecules26154510] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 07/22/2021] [Accepted: 07/23/2021] [Indexed: 11/16/2022] Open
Abstract
Erinacine A, derived from the mycelia of Hericium erinaceus, has attracted much attention due to its neuroprotective properties. However, very few studies have been conducted on the bioavailability, tissue distribution, and protein binding of erinacine A. This study aimed to investigate the bioavailability, tissue distribution, and protein binding of erinacine A in Sprague-Dawley rats. After oral administration (po) and intravenous administration (iv) of 2.381 g/kg BW of the H. erinaceus mycelia extract (equivalent to 50 mg/kg BW of erinacine A) and 5 mg/kg BW of erinacine A, respectively, the absolute bioavailability of erinacine A was estimated as 24.39%. Erinacine A was detected in brain at 1 h after oral dosing and reached the peak at 8 h. Protein binding assay showed unbound erinacine A fractions in brain to blood ratio is close to unity, supporting passive diffusion as the dominating transport. Feces was the major route for the elimination of erinacine A. This study is the first to show that erinacine A can penetrate the blood-brain barrier of rats by the means of passive diffusion and thus support the development of H. erinaceus mycelia for the improvement of neurohealth.
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Affiliation(s)
- Pei-Ching Tsai
- Department of Food Science, Nutrition, and Nutraceutical Biotechnology, Shih Chien University, Taipei 10462, Taiwan; (P.-C.T.); (Y.-K.W.); (J.-H.H.); (C.-C.C.)
| | - Yi-Kai Wu
- Department of Food Science, Nutrition, and Nutraceutical Biotechnology, Shih Chien University, Taipei 10462, Taiwan; (P.-C.T.); (Y.-K.W.); (J.-H.H.); (C.-C.C.)
| | - Jun-Hao Hu
- Department of Food Science, Nutrition, and Nutraceutical Biotechnology, Shih Chien University, Taipei 10462, Taiwan; (P.-C.T.); (Y.-K.W.); (J.-H.H.); (C.-C.C.)
| | - I-Chen Li
- Biotech Research Institute, Grape King Bio Ltd., Taoyuan 32542, Taiwan; (I.-C.L.); (T.-W.L.)
| | - Ting-Wei Lin
- Biotech Research Institute, Grape King Bio Ltd., Taoyuan 32542, Taiwan; (I.-C.L.); (T.-W.L.)
| | - Chin-Chu Chen
- Department of Food Science, Nutrition, and Nutraceutical Biotechnology, Shih Chien University, Taipei 10462, Taiwan; (P.-C.T.); (Y.-K.W.); (J.-H.H.); (C.-C.C.)
- Biotech Research Institute, Grape King Bio Ltd., Taoyuan 32542, Taiwan; (I.-C.L.); (T.-W.L.)
| | - Chia-Feng Kuo
- Department of Food Science, Nutrition, and Nutraceutical Biotechnology, Shih Chien University, Taipei 10462, Taiwan; (P.-C.T.); (Y.-K.W.); (J.-H.H.); (C.-C.C.)
- Correspondence:
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Hericium erinaceus (Bull.) Pers. Ethanolic Extract with Antioxidant Properties on Scopolamine-Induced Memory Deficits in a Zebrafish Model of Cognitive Impairment. J Fungi (Basel) 2021; 7:jof7060477. [PMID: 34204787 PMCID: PMC8231562 DOI: 10.3390/jof7060477] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 06/01/2021] [Accepted: 06/10/2021] [Indexed: 01/16/2023] Open
Abstract
Hericium erinaceus (H. erinaceus) is a rare and appreciated fungal species belonging to the division Basidiomycota used for centuries in traditional Chinese medicine for its medicinal value. This species of mushrooms brings the most diverse benefits for the human body, and can have beneficial effects for treating Alzheimer’s disease (AD). This study investigated whether ethanolic extract from the fungal biomass of H. erinaceus enhances cognitive function via the action on cholinergic neurons using the scopolamine (SCOP)-induced zebrafish (Danio rerio) model of memory impairment. The ethanolic extract from the fungal biomass of H. erinaceus was previously obtained using an ultrasonic extraction method (UE). The administration of H. erinaceus extract to zebrafish, with a pattern of AD induced by scopolamine, showed an improvement in memory evaluated by behavioral and biochemical tests on brain tissue. These results suggest that H. erinaceus has preventive and therapeutic potentials in managing memory deficits and brain oxidative stress in zebrafish with AD.
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Ha LS, Ki DW, Kim JY, Choi DC, Lee IK, Yun BS. Dentipellin, a new antibiotic from culture broth of Dentipellis fragilis. J Antibiot (Tokyo) 2021; 74:538-541. [PMID: 34045694 DOI: 10.1038/s41429-021-00426-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Revised: 04/30/2021] [Accepted: 05/17/2021] [Indexed: 01/13/2023]
Abstract
In our effort to find antimicrobial agents from higher fungi, we isolated a new compound, dentipellin (1), along with three known glycosylated diterpenes, erinacines A-C (2-4) from culture broth of Dentipellis fragilis. Their chemical structures were determined by spectroscopic methods including NMR and mass measurements. These compounds exhibited weak antibacterial and antifungal activities.
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Affiliation(s)
- Lee Su Ha
- Division of Biotechnology and Advanced Institute of Environmental and Bioscience, College of Environmental and Bioresource Sciences, Jeonbuk National University, Iksan-si, Republic of Korea
| | - Dae-Won Ki
- Division of Biotechnology and Advanced Institute of Environmental and Bioscience, College of Environmental and Bioresource Sciences, Jeonbuk National University, Iksan-si, Republic of Korea
| | - Ji-Yul Kim
- Division of Biotechnology and Advanced Institute of Environmental and Bioscience, College of Environmental and Bioresource Sciences, Jeonbuk National University, Iksan-si, Republic of Korea
| | - Dae-Cheol Choi
- Division of Biotechnology and Advanced Institute of Environmental and Bioscience, College of Environmental and Bioresource Sciences, Jeonbuk National University, Iksan-si, Republic of Korea
| | - In-Kyoung Lee
- Division of Biotechnology and Advanced Institute of Environmental and Bioscience, College of Environmental and Bioresource Sciences, Jeonbuk National University, Iksan-si, Republic of Korea
| | - Bong-Sik Yun
- Division of Biotechnology and Advanced Institute of Environmental and Bioscience, College of Environmental and Bioresource Sciences, Jeonbuk National University, Iksan-si, Republic of Korea.
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Zhao G, Liu C, Hadiatullah H, Yao Y, Lu F. Effect of Hericium erinaceus on bacterial diversity and volatile flavor changes of soy sauce. Lebensm Wiss Technol 2021. [DOI: 10.1016/j.lwt.2020.110543] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Tao H, Zuo L, Xu H, Li C, Qiao G, Guo M, Lin X. Alkaloids as Anticancer Agents: A Review of Chinese Patents in Recent 5 Years. Recent Pat Anticancer Drug Discov 2021; 15:2-13. [PMID: 32003702 DOI: 10.2174/1574892815666200131120618] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Revised: 01/19/2020] [Accepted: 01/28/2020] [Indexed: 12/17/2022]
Abstract
BACKGROUND In recent years, many novel alkaloids with anticancer activity have been found in China, and some of them are promising for developing as anticancer agents. OBJECTIVE This review aims to provide a comprehensive overview of the information about alkaloid anticancer agents disclosed in Chinese patents, and discusses their potential to be developed as anticancer drugs used clinically. METHODS Anticancer alkaloids disclosed in Chinese patents in recent 5 years were presented according to their mode of actions. Their study results published on PubMed, and SciDirect databases were presented. RESULTS More than one hundred anticancer alkaloids were disclosed in Chinese patents and their mode of action referred to arresting cell cycle, inhibiting protein kinases, affecting DNA synthesis and p53 expression, etc. Conclusion: Many newly found alkaloids displayed potent anticancer activity both in vitro and in vivo, and some of the anticancer alkaloids acted as protein kinase inhibitors or CDK inhibitors possess the potential for developing as novel anticancer agents.
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Affiliation(s)
- Hongyu Tao
- Department of Pharmacology, School of Basic Medicine, Capital Medical University, Beijing 100069, China
| | - Ling Zuo
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Sichuan 646000, China
| | - Huanli Xu
- Department of Pharmacology, School of Basic Medicine, Capital Medical University, Beijing 100069, China
| | - Cong Li
- Department of Pharmacology, School of Basic Medicine, Capital Medical University, Beijing 100069, China
| | - Gan Qiao
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Sichuan 646000, China
| | - Mingyue Guo
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Sichuan 646000, China
| | - Xiukun Lin
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Sichuan 646000, China
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Zang Y, Cheng Z, Wu T. TLC Bioautography on Screening of Bioactive Natural Products: An Update Review. CURR ANAL CHEM 2020. [DOI: 10.2174/1573411015666181224145346] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Background:
TLC bioautography is a hyphenated technique combining planar chromatographic
separation and in situ biological activity detection. This coupled method has been receiving
much attention in screening bio-active natural products because of its properties of being simple, rapid,
inexpensive, and effective.
Methods:
The recent progress in the development of method of TLC bioautography for detecting antimicrobial
and enzyme inhibitory activities dating between 2012 and early 2018 has been reviewed.
The applications of this method in biological screening of natural products were also presented.
Results:
Some anaerobic and microaerophilic bacteria and a causative bacterium of tuberculosis have
been adopted to TLC direct bioautography. Seven types of enzymes including acetylcholinesterase,
glucosidase, lipase, xanthine oxidase, tyrosinase, monoamine oxidase, and dipeptidyl peptidase IV
have so far been adopted on TLC bioautography. Its new application in screening antiurolithiatic
agents was included.
Conclusion:
The standard experimental procedures are required for TLC antioxidant and antimicrobial
assays. Some new enzymes should be attempted and adopted on TLC bioautography. The existing
TLC methods for enzyme inhibition need more application studies to assess their screening capacity
in the discovery of active compounds. The GC-MS or LC-MS approaches have gradually been
coupled to TLC bioautography for fast structural characterization of active compounds.
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Affiliation(s)
- Yichao Zang
- Department of Pharmacognosy, School of Pharmacy, Fudan University, Shanghai 201203, China
| | - Zhihong Cheng
- Department of Pharmacognosy, School of Pharmacy, Fudan University, Shanghai 201203, China
| | - Tao Wu
- Key Laboratory of Standardization of Chinese Medicines of Ministry of Education, The Shanghai Key Laboratory for Compound Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
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Bailly C, Gao JM. Erinacine A and related cyathane diterpenoids: Molecular diversity and mechanisms underlying their neuroprotection and anticancer activities. Pharmacol Res 2020; 159:104953. [PMID: 32485283 DOI: 10.1016/j.phrs.2020.104953] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 05/10/2020] [Accepted: 05/20/2020] [Indexed: 12/14/2022]
Abstract
The presence of a fused 5/6/7 tricyclic core characterizes the group of cyathane diterpene natural products, that include more than 170 compounds, isolated from fungi such as Cyathus africanus and Hericium erinaceus. These compounds have a common biosynthetic precursor (cyatha-3,12-diene) and can be produced bio- or hemi-synthetically, or via total syntheses. Cyathane diterpenes display a range of pharmacological properties, including anti-inflammatory (possibly through binding to the iNOS protein) and neuroprotective effects. Many cyathanes like cyahookerin C, cyathin Q and cyafranines B and G can stimulate neurite outgrowth in cells, whereas conversely a few molecules (such as scabronine M) inhibit NGF-stimulated neurite outgrowth. The main anticancer cyathanes are erinacine A and cyathins Q and R, with a capacity to trigger cancer cell death dependent on the production of reactive oxygen species (ROS). These compounds, active both in vitro and in vivo, activate different signaling pathways in tumor cells to induce apoptosis (and autophagy) and to upregulate the expression of several proteins implicated in the organization and functioning of the actin cytoskeleton. An analysis of the functional analogy between erinacine A and other natural products known to interfere with the actin network in a ROS-dependent manner (notably cucurbitacin B) further supports the idea that erinacine A functions as a perturbator of the cytoskeleton organization. Collectively, we provide an overview of the molecular diversity of cyathane diterpenes and the main mechanisms of action of the lead compounds, with the objective to encourage further research with these fungal products. The anticancer potential of erinacine A deserves further attention but it will be necessary to better characterize the implicated targets and signaling pathways.
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Affiliation(s)
| | - Jin-Ming Gao
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, Shaanxi, People's Republic of China
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Absolute Bioavailability, Tissue Distribution, and Excretion of Erinacine S in Hericium erinaceus Mycelia. Molecules 2019; 24:molecules24081624. [PMID: 31022946 PMCID: PMC6514545 DOI: 10.3390/molecules24081624] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2019] [Revised: 04/20/2019] [Accepted: 04/22/2019] [Indexed: 12/18/2022] Open
Abstract
Erinacine S, so far known to have been produced only in Hericium erinaceus mycelia, has just recently been discovered and is able to reduce amyloid plaque growth and improve neurogenesis in aged brain of rats. However, few investigations have been conducted on the absorption, distribution, and excretion study of Erinacine S. This study aimed to investigate the absolute bioavailability, tissue distribution, and excretion of Erinacine S in H. Erinaceus mycelia in eight-week old Sprague-Dawley rats. After oral administration and intravenous administration of 2.395 g/kg body weight of the H. erinaceus mycelia extract (equivalent to 50 mg/kg body weight Erinacine S) and 5 mg/kg of Erinacine S, respectively, the absolute bioavailability was estimated as 15.13%. In addition, Erinacine S was extensively distributed in organs such as brain, heart, lung, liver, kidney, stomach, small intestine, and large intestine. The maximum concentration of Erinacine S was observed in the stomach, 2 h after the oral administration of H. erinaceus mycelia extract, whereas the maximum amount of Erinacine S found in other tissues were seen after 8 h. Total amount of unconverted Erinacine S eliminated in feces and urine in 24 h was 0.1% of the oral dosage administrated. This study is the first to show that Erinacine S can penetrate the blood–brain barrier of rats and thus support the development of H. erinaceus mycelia, for the treatment of neurological diseases.
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Zeng X, Ling H, Yang J, Chen J, Guo S. Proteome analysis provides insight into the regulation of bioactive metabolites in Hericium erinaceus. Gene 2018; 666:108-115. [PMID: 29738838 DOI: 10.1016/j.gene.2018.05.020] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2018] [Revised: 05/03/2018] [Accepted: 05/04/2018] [Indexed: 12/28/2022]
Abstract
BACKGROUND Hericium erinaceus, a famous edible mushroom, is also a well-known traditional medicinal fungus. To date, a large number of bioactive metabolites with antitumor, antibacterial, and immune-boosting effects were isolated from the free-living mycelium and fruiting body of H. erinaceus. OBJECTIVE Here we used the proteomic approach to explore proteins involved in the regulation of bioactive metabolites, including terpenoid, polyketide, sterol and etc. RESULTS: Using mass spectrometry, a total of 2543 unique proteins were identified using H. erinaceus genome, of which 2449, 1855, 1533 and 690 proteins were successfully annotated in Nr, KOG, KEGG and GO databases. Among them, 722 proteins were differentially expressed (528 up- and 194 down-regulated) in fruiting body compared with mycelium. Most of differentially expressed proteins were putatively involved in energy metabolism, molecular signaling, and secondary metabolism. Additionally, numerous proteins involved in terpenoid, polyketide, and sterol biosynthesis were identified. Our data revealed that proteins involved in polyketide biosynthesis were up-regulated in the fruiting body, while some proteins in mevalonate (MEP) pathway from terpenoid biosynthesis were generally up-regulated in mycelium. CONCLUSIONS The present study suggested that the differential regulation of biosynthesis genes could produce various bioactive metabolites with pharmacological effects in H. erinaceus.
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Affiliation(s)
- Xu Zeng
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Beijing, 100193, PR China
| | - Hong Ling
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Beijing, 100193, PR China
| | - Jianwen Yang
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Beijing, 100193, PR China
| | - Juan Chen
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Beijing, 100193, PR China
| | - Shunxing Guo
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Beijing, 100193, PR China.
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Wolters N, Schabronath C, Schembecker G, Merz J. Efficient conversion of pretreated brewer's spent grain and wheat bran by submerged cultivation of Hericium erinaceus. BIORESOURCE TECHNOLOGY 2016; 222:123-129. [PMID: 27716564 DOI: 10.1016/j.biortech.2016.09.121] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2016] [Revised: 09/27/2016] [Accepted: 09/29/2016] [Indexed: 06/06/2023]
Abstract
Brewer's spent grain (BSG) and wheat bran (WB) are industrial byproducts that accumulate in millions of tons per year and are typically applied as animal feed. Since both byproducts show a great potential as substrates for fermentation, the approach developed in this study consists of utilizing these lignocellulosic byproducts for biomass production of the medicinal fungus Hericium erinaceus through submerged cultivation. To increase the biological efficiency of the bioconversion, acidic pretreatment was applied yielding a bioconversion of 38.6% for pretreated BSG and 34.8% for pretreated WB. This study shows that the complete degradation of (hemi)cellulose into monosaccharides was not required for an efficient bioconversion. The produced fungal biomass was applied in a second fermentation step to induce the secondary metabolite erinacine C production. Thus, biomass was produced as a functional food ingredient with erinacine C contents of 174.8mg/g for BSG and 99.3mg/g for WB based bioconversions.
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Affiliation(s)
- Niklas Wolters
- Laboratory of Plant and Process Design, Department of Biochemical and Chemical Engineering, Emil-Figge-Straße 70, D-44227 Dortmund, Germany
| | - Christoph Schabronath
- Laboratory of Plant and Process Design, Department of Biochemical and Chemical Engineering, Emil-Figge-Straße 70, D-44227 Dortmund, Germany
| | - Gerhard Schembecker
- Laboratory of Plant and Process Design, Department of Biochemical and Chemical Engineering, Emil-Figge-Straße 70, D-44227 Dortmund, Germany
| | - Juliane Merz
- Laboratory of Plant and Process Design, Department of Biochemical and Chemical Engineering, Emil-Figge-Straße 70, D-44227 Dortmund, Germany.
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