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Abstract
The Hypericum genus contains one of the few genera of flowering plants that contains a species with authorization for marketing as a traditional medicine, H. perforatum. Due to the fact that this is a large genus, comprising numerous species, a large amount of interest has been shown over the years in the study of its various pharmacological activities. The chemical composition of these species is quite similar, containing compounds belonging to the class of phloroglucinol derivatives, naphthodianthrones, phenols, flavonoids and essential oils. Taking all of this into consideration, the present study aims to offer an overview of the species of the genus from the point of view of their extraction techniques and analysis methods. An extensive study on the scientific literature was performed, and it revealed a wide range of solvents and extraction methods, among which ethanol and methanol, together with maceration and ultrasonication, are the most frequent. Regarding analysis methods, separation and spectral techniques are the most employed. Therefore, the present study provides necessary data for future studies on the species of the genus, offering a complete overview and a possible basis for their development.
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Afsharzadeh N, Lavi Arab F, Sankian M, Samiei L, Tabasi NS, Afsharzadeh D, Nikkhah K, Mahmoudi M. Comparative assessment of proliferation and immunomodulatory potential of Hypericum perforatum plant and callus extracts on mesenchymal stem cells derived adipose tissue from multiple sclerosis patients. Inflammopharmacology 2021; 29:1399-1412. [PMID: 34510276 DOI: 10.1007/s10787-021-00838-3] [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: 04/28/2021] [Accepted: 06/16/2021] [Indexed: 10/20/2022]
Abstract
BACKGROUND Mesenchymal stem cells-derived adipose tissue (AT-MSCs) are recognized for the treatment of inflammatory diseases including multiple sclerosis (MS). Hypericum perforatum (HP) is an anti-inflammatory pharmaceutical plant with bioactive compounds. Plant tissue culture is a technique to improve desired pharmacological potential. The aim of this study was to compare the anti-inflammatory and proliferative effects of callus with field-growing plant extracts of HP on AT-MSCs derived from MS patients. MATERIALS AND METHODS AT-MSCs were isolated and characterized. HP callus was prepared and exposure to light spectrum (blue, red, blue-red, and control). Total phenols, flavonoids, and hypericin of HP callus and plant extracts were measured. The effects of HP extracts concentrations on proliferation were evaluated by MTT assay. Co-culture of AT-MSCs: PBMCs were challenged by HP plant and callus extracts, and Tregs percentage was assessed by flow cytometry. RESULTS Identification of MSCs was performed. Data showed that blue light could stimulate total phenols, flavonoids, and hypericin. MTT test demonstrated that plant extract in concentrations (0.03, 1.2, 2.5 and 10 μg/ml) and HP callus extract in 10 μg/ml significantly increased. Both HP extracts lead to an increase in Tregs percentage in all concentrations. In particular, a comparison between HP plant and callus extracts revealed that Tregs enhanced 3-fold more than control groups in the concentration of 10 μg/ml callus. CONCLUSIONS High concentrations of HP extracts showed effectiveness on AT-MSCs proliferation and immunomodulatory properties with a certain consequence in callus extract. HP extracts may be considered as supplementary treatments for the patients who receiving MSCs transplantation.
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Affiliation(s)
- Negin Afsharzadeh
- Immunology Research Center, Bu-Ali Research Institute, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Fahimeh Lavi Arab
- Immunology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mojtaba Sankian
- Immunology Research Center, Bu-Ali Research Institute, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Leila Samiei
- Research Center for Plant Sciences, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Nafiseh Sadat Tabasi
- Immunology Research Center, Bu-Ali Research Institute, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Danial Afsharzadeh
- University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Karim Nikkhah
- Department of Neurology, Faculty of Medicine, Mashhad University of Medical Science, Mashhad, Iran
| | - Mahmoud Mahmoudi
- Immunology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran. .,Department of Immunology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
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Oreopoulou A, Choulitoudi E, Tsimogiannis D, Oreopoulou V. Six Common Herbs with Distinctive Bioactive, Antioxidant Components. A Review of Their Separation Techniques. Molecules 2021; 26:molecules26102920. [PMID: 34069026 PMCID: PMC8157015 DOI: 10.3390/molecules26102920] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Revised: 05/10/2021] [Accepted: 05/10/2021] [Indexed: 12/15/2022] Open
Abstract
Rosemary, oregano, pink savory, lemon balm, St. John’s wort, and saffron are common herbs wildly grown and easily cultivated in many countries. All of them are rich in antioxidant compounds that exhibit several biological and health activities. They are commercialized as spices, traditional medicines, or raw materials for the production of essential oils. The whole herbs or the residues of their current use are potential sources for the recovery of natural antioxidant extracts. Finding effective and feasible extraction and purification methods is a major challenge for the industrial production of natural antioxidant extracts. In this respect, the present paper is an extensive literature review of the solvents and extraction methods that have been tested on these herbs. Green solvents and novel extraction methods that can be easily scaled up for industrial application are critically discussed.
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Affiliation(s)
- Antigoni Oreopoulou
- Laboratory of Food Chemistry and Technology, School of Chemical Engineering, National Technical University of Athens, 5 Iroon Polytechniou, 15780 Athens, Greece; (A.O.); (E.C.); (D.T.)
- Vioryl, Agricultural and Chemical Industry, Research S.A., 28th km National Road Athens-Lamia, 19014 Attiki, Greece
| | - Evanthia Choulitoudi
- Laboratory of Food Chemistry and Technology, School of Chemical Engineering, National Technical University of Athens, 5 Iroon Polytechniou, 15780 Athens, Greece; (A.O.); (E.C.); (D.T.)
| | - Dimitrios Tsimogiannis
- Laboratory of Food Chemistry and Technology, School of Chemical Engineering, National Technical University of Athens, 5 Iroon Polytechniou, 15780 Athens, Greece; (A.O.); (E.C.); (D.T.)
- NFA (Natural Food Additives), Laboratory of Natural Extracts Development, 6 Dios st, 17778 Athens, Greece
| | - Vassiliki Oreopoulou
- Laboratory of Food Chemistry and Technology, School of Chemical Engineering, National Technical University of Athens, 5 Iroon Polytechniou, 15780 Athens, Greece; (A.O.); (E.C.); (D.T.)
- Correspondence: ; Tel.: +30-2107723166
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Rodrigues V, Kumar A, Prabhu KN, Pragadheesh VS, Shukla AK, Sundaresan V. Adventitious root cultures of Decalepis salicifolia for the production of 2-hydroxy-4-methoxybenzaldehyde, a vanillin isomer flavor metabolite. Appl Microbiol Biotechnol 2021; 105:3087-3099. [PMID: 33829315 DOI: 10.1007/s00253-021-11262-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Revised: 03/16/2021] [Accepted: 03/31/2021] [Indexed: 01/15/2023]
Abstract
Decalepis salicifolia (Bedd. ex. Hook.f.) Venter is a potential natural source of the vanillin isomer, 2-hydroxy-4-methoxybenzaldehyde (2H4MB), an aromatic compound. However, the utilization of the plant is hindered especially due to its critically endangered status and the root-specific accumulation of the compound. The use of in vitro culture techniques offers a sustainable means for the production of valuable metabolites. In this study, an efficient system was established for the production of 2H4MB in the adventitious root cultures of D. salicifolia. Leaf explants of in vitro grown plants produced on an average 4.33 ± 2.07 number of roots with root initiation frequency of 95.69 ± 3.74% in woody plant medium supplemented with 0.5 mg/L α-naphthalene acetic acid (NAA) and 1.0 mg/L kinetin (Kn). The adventitious root biomass accumulation of 10.61 ± 0.89 g fresh weight (FW) was obtained in woody plant liquid media containing 0.5 mg/L NAA and 0.3 mg/L indole-3-butyric acid (IBA) in 60 days of inoculation. Field-grown plants of the same age produced 0.30 ± 0.02 g FW, which was 35-fold lower than the adventitious root culture. The total production of 2H4MB in the same growth period was 4.9-fold higher in adventitious root culture (139.54 μg) as compared to field-grown plants (28.62 μg). Furthermore, sucrose concentration of 2% was favorable for biomass accumulation, whereas 5% was favorable for 2H4MB production. On the other hand, media pH 5.0 was suitable for biomass production and pH 7.0 was best suited for accumulation of 2H4MB. The adventitious roots also showed stable production of biomass and 2H4MB over 2 years. The established adventitious root culture system is suitable for further large-scale production of 2H4MB for flavor and fragrance industrial applications. KEY POINTS: • Biomass accumulation was higher in adventitious root cultures than in field-grown plants. • Manipulation of sucrose concentration and media pH led to increased 2H4MB production. • Adventitious roots showed stable biomass and 2H4MB production over 2 years.
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Affiliation(s)
- Vereena Rodrigues
- Plant Biology and Systematics, CSIR-Central Institute of Medicinal and Aromatic Plants, Research Centre, Bengaluru, 560065, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Amit Kumar
- Plant Biology and Systematics, CSIR-Central Institute of Medicinal and Aromatic Plants, Research Centre, Bengaluru, 560065, India.,Phytopharmaceuticals Division, Indian Pharmacopoeia Commission, Ghaziabad, 201002, India
| | - Kamasamudra N Prabhu
- Plant Biology and Systematics, CSIR-Central Institute of Medicinal and Aromatic Plants, Research Centre, Bengaluru, 560065, India
| | - V S Pragadheesh
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India.,Analytical Chemistry and Phytochemistry, CSIR-Central Institute of Medicinal and Aromatic Plants, Research Centre, Bengaluru, 560065, India
| | - Ashutosh K Shukla
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India.,Biotechnology Division, CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow, 226015, India
| | - Velusamy Sundaresan
- Plant Biology and Systematics, CSIR-Central Institute of Medicinal and Aromatic Plants, Research Centre, Bengaluru, 560065, India. .,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India.
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Genome-wide identification and characterization of R2R3-MYB family in Hypericum perforatum under diverse abiotic stresses. Int J Biol Macromol 2020; 145:341-354. [DOI: 10.1016/j.ijbiomac.2019.12.100] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Revised: 11/17/2019] [Accepted: 12/12/2019] [Indexed: 12/11/2022]
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Zainab R, Akram M, Daniyal M, Riaz M. Awareness and Current Therapeutics of Asthma. Dose Response 2019; 17:1559325819870900. [PMID: 31523203 PMCID: PMC6728691 DOI: 10.1177/1559325819870900] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Revised: 03/11/2019] [Accepted: 06/18/2019] [Indexed: 01/21/2023] Open
Abstract
Introduction: Asthma is a serious allergic disorder of the respiratory system. It affects
about 300 million people worldwide. This has a great burden on medical
treatment. Several medicines are available, but they have many serious side
effects. Therefore, there is a need to search for a new therapeutic agent
with no or minimal side effects while most economical for patients. In folk
medicine, antiasthmatics herbal medicine has been used and showed potential
therapeutic antiasthmatic efficacy due to the presence of potential
bioactive compounds. Methods: Different databases were searched (ie, Embase, PubMed, CBM, AMED, and
CINAHL). We have reviewed the published data of the last 20 years. We used
MeSH terms “asthma” herbal treatment of asthma, allopathic treatment of
asthma, and treatment strategies for asthma. The traditional medicine was
compared with modern medicine and the same pharmacotherapies alone or with
placebo. The methodology was evaluated by using the GRADE summary of Finding
tables and Cochrane Risk of Bias Tool. Results: There have been some clear-cut indications toward the recognition of further
molecular and cellular mechanisms of asthma. Most of them recommend a
further target for treatment. The novel procedures, biologics, and
pharmaceuticals are evaluated. Both allopathic and herbal treatments of
asthma are effective. Due to none or lesser side effects, herbal medicines
are safer than conventional medicine. Conclusion: The preliminary documentation of the plants discussed in the review show the
presence of several secondary metabolites that are responsible for the
management of asthma and its relevant complications. Further research
studies are needed to identify the bioactive compounds from these plants
that have potential efficacy to cure asthma, and clinically based studies
are needed to search for a complete cure for this disease.
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Affiliation(s)
- Rida Zainab
- Department of Eastern Medicine, Government College University Faisalabad, Faisalabad, Pakistan
| | - Muhammad Akram
- Department of Eastern Medicine, Government College University Faisalabad, Faisalabad, Pakistan
| | - Muhammad Daniyal
- TCM and Ethnomedicine Innovation & Development International Laboratory, School of Pharmacy, Hunan University of Chinese Medicine, Changsha, China
| | - Muhammad Riaz
- Department of Allied Health Sciences, University of Sargodha, Sargodha, Pakistan
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Gaid M, Grosch JH, Möller S, Beerhues L, Krull R. Toward enhanced hyperforin production in St. John's wort root cultures. Eng Life Sci 2019; 19:916-930. [PMID: 32624982 DOI: 10.1002/elsc.201900043] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Revised: 05/10/2019] [Accepted: 05/22/2019] [Indexed: 12/11/2022] Open
Abstract
During the past decades, several trials targeted a stable, sustainable and economic production of St. John's wort (Hypericum perforatum) extract. The value of this extract stems from its use to treat depression and skin irritation due to its hyperforin content. Previously, hyperforin-forming in vitro root cultures were established. Here, detailed growth and production kinetics have been analyzed over 40 days of cultivation. In the first 10 days, sucrose was completely hydrolyzed to glucose and fructose. The ammonium consumption supported the increase in the biomass and hyperforin production. When sucrose was replaced with glucose/fructose, the linear growth phase started 6 days earlier and resulted in a higher space-time-yield. The maximum hyperforin production was 0.82 mg L-1 day-1, which was 67 % higher than in the sucrose-supplemented standard cultivation. Buffering the sucrose-supplemented medium with phosphate caused a 2.7-fold increase in the product to biomass yield coefficient. However, the combination of monosaccharides and buffering conditions did not cause an appreciable improvements in the production performance of the shake flask approaches. A potential scalability from flask to lab-scale stirred bioreactors has been demonstrated. The results obtained offer a basis for a scalable production of hyperforin and a sustainable source for a tissue culture-based phytomedicine.
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Affiliation(s)
- Mariam Gaid
- Institute of Pharmaceutical Biology Technische Universität Braunschweig Braunschweig Germany.,Center of Pharmaceutical Engineering (PVZ) Technische Universität Braunschweig Braunschweig Germany
| | - Jan-Hendrik Grosch
- Institute of Biochemical Engineering Technische Universität Braunschweig Braunschweig Germany.,Center of Pharmaceutical Engineering (PVZ) Technische Universität Braunschweig Braunschweig Germany.,Braunschweig Centre of Systems Biology (BRICS) Technische Universität Braunschweig Braunschweig Germany
| | - Steve Möller
- Institute of Biochemical Engineering Technische Universität Braunschweig Braunschweig Germany.,Center of Pharmaceutical Engineering (PVZ) Technische Universität Braunschweig Braunschweig Germany.,Braunschweig Centre of Systems Biology (BRICS) Technische Universität Braunschweig Braunschweig Germany
| | - Ludger Beerhues
- Institute of Pharmaceutical Biology Technische Universität Braunschweig Braunschweig Germany.,Center of Pharmaceutical Engineering (PVZ) Technische Universität Braunschweig Braunschweig Germany
| | - Rainer Krull
- Institute of Biochemical Engineering Technische Universität Braunschweig Braunschweig Germany.,Center of Pharmaceutical Engineering (PVZ) Technische Universität Braunschweig Braunschweig Germany.,Braunschweig Centre of Systems Biology (BRICS) Technische Universität Braunschweig Braunschweig Germany
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Downstream processing of hyperforin from Hypericum perforatum root cultures. Eur J Pharm Biopharm 2018; 126:104-107. [DOI: 10.1016/j.ejpb.2017.06.026] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Revised: 05/23/2017] [Accepted: 06/28/2017] [Indexed: 01/30/2023]
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Füller J, Kellner T, Gaid M, Beerhues L, Müller-Goymann CC. Stabilization of hyperforin dicyclohexylammonium salt with dissolved albumin and albumin nanoparticles for studying hyperforin effects on 2D cultivation of keratinocytes in vitro. Eur J Pharm Biopharm 2017; 126:115-122. [PMID: 28870756 DOI: 10.1016/j.ejpb.2017.08.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2017] [Revised: 07/12/2017] [Accepted: 08/15/2017] [Indexed: 10/18/2022]
Abstract
Due to the limited chemical stability of the natural hyperforin molecule, a more stable form of hyperforin, i.e., the hyperforin dicyclohexylammonium salt (HYP-DCHA) has been used for ex vivo and in vitro experiments in recent years, but its actual stability under typical cell culture conditions has never been studied before. In this contribution the stability of HYP-DCHA was examined under typical cell culture conditions. Different cell culture media with and without fetal calf serum (FCS) supplementation were studied with regard to further stabilization of HYP-DCHA determined with HPLC analysis. Furthermore, albumin nanoparticles were examined as a stabilizing carrier system for HYP-DCHA. In this context, the interaction between HYP-DCHA and albumin nanoparticles (ANP) was examined with regard to size and loading with HYP . The effects of HYP-DCHA either supplied in cell culture medium or loaded on ANP on viability and cytotoxicity were studied in vitro on HaCaT monolayers (human keratinocyte cell line). HYP-DCHA supplied in FCS-containing medium was recovered completely after 24h of incubation. However, a lack of FCS caused a total loss of HYP-DCHA after less than 24h incubation time. Supplying HYP-DCHA loaded on ANP in an FCS-free medium resulted in a recovery of about 60% after 24h incubation. HYP-DCHA supplied in medium along with FCS showed a slow dose-dependent decrease in viability of HaCaT cells without any cytotoxic effects (antiproliferative effect). Treatment with HYP-DCHA with a lack of FCS resulted in a significantly faster decrease in viability which was mainly due to cytotoxicity. The latter was true for HYP-DHCA-loaded ANP where increased cytotoxicity was observed despite the presence of FCS. The results show that the stability of the widely used HYP-DCHA is rather limited under cell culture conditions. Especially a lack of FCS leads to degradation and/or oxidation of HYP-DCHA probably causing an increased cytotoxicity. In contrast, FCS supplementation fairly stabilizes HYP-DCHA under cell culture conditions while albumin nanoparticles may serve the same stabilization purpose despite increasing cytotoxic effects onto the cells themselves.
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Affiliation(s)
- J Füller
- Institut für Pharmazeutische Technologie, Technische Universität Braunschweig, Braunschweig, Germany; Center of Pharmaceutical Engineering, Technische Universität Braunschweig, Braunschweig, Germany
| | - T Kellner
- Institut für Pharmazeutische Technologie, Technische Universität Braunschweig, Braunschweig, Germany; Center of Pharmaceutical Engineering, Technische Universität Braunschweig, Braunschweig, Germany
| | - M Gaid
- Institut für Pharmazeutische Biologie, Technische Universität Braunschweig, Braunschweig, Germany; Center of Pharmaceutical Engineering, Technische Universität Braunschweig, Braunschweig, Germany
| | - L Beerhues
- Institut für Pharmazeutische Biologie, Technische Universität Braunschweig, Braunschweig, Germany; Center of Pharmaceutical Engineering, Technische Universität Braunschweig, Braunschweig, Germany
| | - C C Müller-Goymann
- Institut für Pharmazeutische Technologie, Technische Universität Braunschweig, Braunschweig, Germany; Center of Pharmaceutical Engineering, Technische Universität Braunschweig, Braunschweig, Germany.
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Shakya P, Marslin G, Siram K, Beerhues L, Franklin G. Elicitation as a tool to improve the profiles of high-value secondary metabolites and pharmacological properties of Hypericum perforatum. ACTA ACUST UNITED AC 2017; 71:70-82. [PMID: 28523644 PMCID: PMC6585710 DOI: 10.1111/jphp.12743] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Accepted: 04/10/2017] [Indexed: 12/13/2022]
Abstract
OBJECTIVES In this review, we aim at updating the available information on the improvement of the Hypericum perforatum L. (Hypericaceae) phytochemical profile and pharmacological properties via elicitation. KEY FINDINGS Hypericum perforatum seedlings, shoots, roots, calli and cell suspension cultures were treated with diverse elicitors to induce the formation of secondary metabolites. The extracts of the elicitor-treated plant material containing naphthodianthrones, phloroglucinols, xanthones, flavonoids and other new compounds were quantitatively analysed and tested for their bioactivities. While hypericins were mainly produced in H. perforatum cultures containing dark nodules, namely shoots and seedlings, other classes of compounds such as xanthones, phloroglucinols and flavonoids were formed in all types of cultures. The extracts obtained from elicitor-treated samples generally possessed better bioactivities compared to the extract of control biomass. SUMMARY Although elicitation is an excellent tool for the production of valuable secondary metabolites in H. perforatum cell and tissue cultures, its exploitation is still in its infancy mainly due to the lack of reproducibility and difficulties in scaling up biomass production.
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Affiliation(s)
- Preeti Shakya
- Department of Integrative Plant Biology, Institute of Plant Genetics of the Polish Academy of Sciences, Poznań, Wielkopolska, Poland
| | - Gregory Marslin
- Chinese-German Joint Laboratory for Natural Product Research, Qinling-Bashan Mountains Bioresources Comprehensive Development C.I.C., College of Biological Science and Engineering, Shaanxi University of Technology, Hanzhong, Shaanxi, China
| | - Karthik Siram
- Department of Pharmaceutics, PSG College of Pharmacy, Coimbatore, Tamil Nadu, India
| | - Ludger Beerhues
- Institute of Pharmaceutical Biology, Technische Universität Braunschweig, Braunschweig, Germany
| | - Gregory Franklin
- Department of Integrative Plant Biology, Institute of Plant Genetics of the Polish Academy of Sciences, Poznań, Wielkopolska, Poland
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Biotechnological production of hyperforin for pharmaceutical formulation. Eur J Pharm Biopharm 2017; 126:10-26. [PMID: 28377273 DOI: 10.1016/j.ejpb.2017.03.024] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2017] [Revised: 03/28/2017] [Accepted: 03/29/2017] [Indexed: 01/09/2023]
Abstract
Hyperforin is a major active constituent of Hypericum perforatum (St. John's wort). It has amazing pharmacological activities, such as antidepressant properties, but it is labile and difficult to synthesize. Its sensitivity and lipophilicity are challenges for processing and formulation. Its chemical complexity provokes approaches of biotechnological production and modification. Dedifferentiated H. perforatum cell cultures lack appropriate storage sites and hence appreciable hyperforin levels. Shoot cultures are capable of forming hyperforin but less suitable for biomass up-scaling in bioreactors. Roots commonly lack hyperforin but a recently established adventitious root line has been demonstrated to produce hyperforin and derivatives at promising levels. The roots also contained lupulones, the typical constituents of hop (Humulus lupulus). Although shear-sensitive, these root cultures provide a potential production platform for both individual compounds and extracts with novel combinations of constituents and pharmacological activities. Besides in vitro cultivation techniques, the reconstruction of hyperforin biosynthesis in microorganisms is a promising alternative for biotechnological production. The biosynthetic pathway is under study, with omics-technologies being increasingly implemented. These biotechnological approaches may not only yield hyperforin at reasonable productivity but also allow for modifications of its chemical structure and pharmacological profile.
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