Planta medicaPub Date : 2024-06-01Epub Date: 2023-09-06DOI: 10.1055/a-2162-4018
Christoph Wawrosch, Martina Oberhofer, Stefan Steinbrecher, Sergey B Zotchev
{"title":"Impact of Phylogenetically Diverse Bacterial Endophytes of Bergenia pacumbis on Bergenin Production in the Plant Cell Suspension Cultures.","authors":"Christoph Wawrosch, Martina Oberhofer, Stefan Steinbrecher, Sergey B Zotchev","doi":"10.1055/a-2162-4018","DOIUrl":"10.1055/a-2162-4018","url":null,"abstract":"<p><p>Plant <i>in vitro</i> cultures are potential sources for secondary metabolites. However, low productivity is often a major drawback for industrial application. Elicitation is an important strategy to improve product formation <i>in vitro</i>. In this context, endophytes are of special interest as biotic elicitors due to their possible interaction with the metabolism of the host plant. A total of 128 bacterial endophytes were isolated from the medicinal plant <i>Bergenia pacumbis</i> and taxonomically classified using 16S rRNA gene sequencing. Five strains belonging to different genera were grown in lysogeny broth and tryptic soy broth medium and cells as well as spent media were used as elicitors in cell suspension cultures of <i>B. pacumbis</i>. Production of the main bioactive compound bergenin was enhanced 3-fold (964 µg/g) after treatment with cells of <i>Moraxella</i> sp. or spent tryptic soy broth medium of <i>Micrococcus</i> sp. These results indicate that elicitation of plant cell suspension cultures with endophytic bacteria is a promising strategy for enhancing the production of desired plant metabolites.</p>","PeriodicalId":20127,"journal":{"name":"Planta medica","volume":" ","pages":"651-657"},"PeriodicalIF":2.1,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10167459","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Planta medicaPub Date : 2024-06-01Epub Date: 2024-06-06DOI: 10.1055/a-2192-3167
Eleni V Mikropoulou, Zoi Evangelakou, Ioannis P Trougakos, Maria Halabalaki
{"title":"A Metabolomic Approach to Investigate the Effect of Phytonutrients on Proteostasis and Metabolic Pathways in Drosophila melanogaster.","authors":"Eleni V Mikropoulou, Zoi Evangelakou, Ioannis P Trougakos, Maria Halabalaki","doi":"10.1055/a-2192-3167","DOIUrl":"https://doi.org/10.1055/a-2192-3167","url":null,"abstract":"<p><p>The use of <i>Drosophila melanogaster</i> as a biological platform to study the effect of diet and food bioactives on the metabolome remains a highly unexplored subject. Aiming to establish alternative solutions for the investigation of nutritional interventions with bioactive natural products by employing LC-MS-based metabolomics approaches, we assessed the effect of a phytonutrient-rich extract from the endemic Mediterranean plant <i>Cichorium spinosum</i> (stamnagkàthi) on a <i>Drosophila</i> population. The extract's modulating effect on the proteostasis network and metabolism of young <i>D. melanogaster</i> flies was evaluated. Furthermore, an untargeted metabolomics approach, employing a C18 UPLC-ESI-Orbitrap-HRMS/MS platform, permitted the detection of several biomarkers in the metabolic profile of <i>Drosophila</i>'s tissues; while targeted amino acid quantification in <i>Drosophila</i> tissue was simultaneously performed by employing aTRAQ labeling and an ion-pairing UPLC-ESI-SWATH-HRMS/MS platform. The detected metabolites belong to different chemical classes, and statistical analysis with chemometrics tools was utilized to reveal patterns and trends, as well as to uncover potential class-distinguishing features and possible biomarkers. Our findings suggest that <i>Drosophila</i> can serve as a valuable <i>in vivo</i> model for investigating the role of bioactive phytoconstituents, like those found in <i>C. spinosum</i>'s decoction, on diverse metabolic processes. Additionally, the fruit fly represents a highly effective platform to investigate the molecular mechanisms underlying sex differences in diverse aspects of nutrition and physiology in higher metazoans.</p>","PeriodicalId":20127,"journal":{"name":"Planta medica","volume":"90 7-08","pages":"512-522"},"PeriodicalIF":2.7,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141284462","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Planta medicaPub Date : 2024-06-01Epub Date: 2024-06-06DOI: 10.1055/a-2235-0009
Lemonia Antoniadi, Apostolis Angelis, Ioannis K Kostakis, Leandros A Skaltsounis
{"title":"Oxidation Study of Oleocanthal and Oleacein Induced by Oxone.","authors":"Lemonia Antoniadi, Apostolis Angelis, Ioannis K Kostakis, Leandros A Skaltsounis","doi":"10.1055/a-2235-0009","DOIUrl":"https://doi.org/10.1055/a-2235-0009","url":null,"abstract":"<p><p>A selective Oxone-induced oxidation of oleocanthal and oleacein, the two main secoiridoids of olive oil, to their bis-oxidized products is described. This protocol is based on a Baeyer-Villiger mechanism and the concentration of Oxone in the final solution. The bis-oxidation of the aldehydic compounds could be extended for the synthesis of various semisynthetic analogs. The obtained acids exhibit strong antioxidant activity, being efficient free radical scavengers.</p>","PeriodicalId":20127,"journal":{"name":"Planta medica","volume":"90 7-08","pages":"554-560"},"PeriodicalIF":2.7,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141284468","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Planta medicaPub Date : 2024-06-01Epub Date: 2024-06-06DOI: 10.1055/a-2232-4755
Pankaj Pandey, Mantasha Idrisi, Zulfiqar Ali, Islam Husain, William M Neal, Shabana I Khan, Daneel Ferreira, Amar G Chittiboyina, Ikhlas A Khan
{"title":"iso-Guttiferone J and Structure Revision of Guttiferone J from Garcinia gummi-gutta: A Combined Experimental and Integrated QM/NMR Approach.","authors":"Pankaj Pandey, Mantasha Idrisi, Zulfiqar Ali, Islam Husain, William M Neal, Shabana I Khan, Daneel Ferreira, Amar G Chittiboyina, Ikhlas A Khan","doi":"10.1055/a-2232-4755","DOIUrl":"https://doi.org/10.1055/a-2232-4755","url":null,"abstract":"<p><p>Many polyprenylated acylphloroglucinols with fascinating chemical structures and intriguing biological activities have been identified as key to phytochemicals isolated from <i>Garcinia, Hypericum</i>, and related genera. In the present work, two chiral, tautomeric, highly-oxygenated polyprenylated acylphloroglucinols tethered with acyl and prenyl moieties on a bicyclo[3.3.1]nonanetrione core were isolated from the 95% ethanolic extract of <i>Garcinia gummi-gutta</i> fruit. The structures of both compounds were elucidated based on the NMR and MS data with ambiguity in the exact position of the enol and keto functions at C-1 and C-3 of the core structure. The structures of both polyprenylated acylphloroglucinols were established as a structurally revised guttiferone J and the new <i>iso</i>-guttiferone J with the aid of gauge-independent atomic orbital NMR calculations, CP3 probability analyses, specific rotation calculations, and electronic circular dichroism calculations in combination with the experimental data. The structures of both compounds resemble hyperforin, a potent activator of the human pregnane X receptor. As expected, both compounds showed strong pregnane X receptor activation at 10 µM [7.1-fold (guttiferone J) and 5.0-fold (<i>iso</i>-guttiferone J)], explained by a molecular docking study, necessitating further in-depth investigation to substantiate the herb-drug interaction potential of <i>G. gummi-gutta</i> upon co-administration with pharmaceutical drugs.</p>","PeriodicalId":20127,"journal":{"name":"Planta medica","volume":"90 7-08","pages":"631-640"},"PeriodicalIF":2.7,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141284466","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Planta medicaPub Date : 2024-06-01Epub Date: 2024-06-06DOI: 10.1055/a-2225-7545
Elisabeth Eichenauer, Johannes Saukel, Sabine Glasl
{"title":"VOLKSMED Database: A Source for Forgotten Wound Healing Plants in Austrian Folk Medicine.","authors":"Elisabeth Eichenauer, Johannes Saukel, Sabine Glasl","doi":"10.1055/a-2225-7545","DOIUrl":"10.1055/a-2225-7545","url":null,"abstract":"<p><p>The global increase in the incidence of wounds is concerning and fuels the search for new treatment options. The use of traditional medicinal plants in wound healing represents an appreciated available therapeutic possibility. This work introduces the VOLKSMED database, which contains plants and other materials used in Austrian folk medicine, either as monographs or mixtures. This work focuses on the monographs of the database. Concerning wound healing, <i>Hypericum</i> sp., <i>Arnica montana, Calendula officinalis, Plantago</i> sp., and <i>Malva</i> sp. are the most commonly used plants. The focus of this paper is set on selected lesser-known plants (<i>Abies alba, Anthyllis vulneraria, Brassica</i> sp., <i>Gentiana</i> sp., <i>Larix decidua, Picea abies, Sambucus</i> sp., <i>Sanicula europaea</i>) and their status quo in literature concerning wound healing. A systematic search using the databases SciFinder, SCOPUS, and PubMed yielded substantial evidence for the wound healing potential of <i>Brassica</i> sp., <i>Gentiana</i> sp., the Pinaceae <i>A. abies, L. decidua,</i> and <i>P. abies</i>, as well as <i>Sambucus nigra. In vivo</i> and clinical studies substantiate their use in Austrian folk medicine. According to the literature, especially <i>A. vulneraria, Sambucus racemosa,</i> and <i>S. europaea</i> would be worth investigating in-depth since data concerning their wound healing effects - even though scarce - are convincing. In conclusion, the VOLKSMED database contains promising opportunities for further treatment options in the field of wound healing. Future research should consider the listed plants to support their traditional use in Austrian folk medicine and possibly promote the implementation of old knowledge in modern medicine.</p>","PeriodicalId":20127,"journal":{"name":"Planta medica","volume":"90 7-08","pages":"498-511"},"PeriodicalIF":2.7,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141284474","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Planta medicaPub Date : 2024-06-01Epub Date: 2024-06-06DOI: 10.1055/a-2255-7096
Natalia P Alza, Eva M Pferschy-Wenzig, Olaf Kunert, Ana P Murray
{"title":"Withanolide Profile and Acetylcholinesterase Inhibitory Activity of Two Argentinean Jaborosa Species.","authors":"Natalia P Alza, Eva M Pferschy-Wenzig, Olaf Kunert, Ana P Murray","doi":"10.1055/a-2255-7096","DOIUrl":"10.1055/a-2255-7096","url":null,"abstract":"<p><p>Acetylcholinesterase (AChE) inhibitors are still an important option for managing symptoms of mild to moderate Alzheimer's disease. In this study, we aimed to evaluate the potential <i>in vitro</i> AChE inhibitory activity of two Argentinian endemic Solanaceae species, <i>Jaborosa bergii</i> and <i>J. runcinata</i>. UHPLC-DAD-HRMS metabolite profiling revealed the presence of withanolides in the active CH<sub>2</sub>Cl<sub>2</sub> subextracts. Their fractionation led to the isolation and identification of two known spiranoid withanolides from <i>J. runcinata</i> and three new withanolides with a skeleton similar to that of trechonolide-type withanolides from <i>J. bergii</i>. The known compounds showed moderate AChE inhibitory activity, while the new ones were inactive.</p>","PeriodicalId":20127,"journal":{"name":"Planta medica","volume":"90 7-08","pages":"561-575"},"PeriodicalIF":2.1,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141284475","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Planta medicaPub Date : 2024-06-01Epub Date: 2024-06-06DOI: 10.1055/a-2240-7462
Sheyda Bahiraii, Barbara Braunböck-Müller, Elke H Heiss
{"title":"Increased Glycolytic Activity Is Part of Impeded M1(LPS) Macrophage Polarization in the Presence of Urolithin A.","authors":"Sheyda Bahiraii, Barbara Braunböck-Müller, Elke H Heiss","doi":"10.1055/a-2240-7462","DOIUrl":"10.1055/a-2240-7462","url":null,"abstract":"<p><p>Urolithin A is a gut metabolite of ellagitannins and reported to confer health benefits, e.g., by increased clearance of damaged mitochondria by macroautophagy or curbed inflammation. One targeted cell type are macrophages, which are plastic and able to adopt pro- or anti-inflammatory polarization states, usually assigned as M1 and M2 macrophages, respectively. This flexibility is tightly coupled to characteristic shifts in metabolism, such as increased glycolysis in M1 macrophages, and protein expression upon appropriate stimulation. This study aimed at investigating whether the anti-inflammatory properties of U: rolithin A may be driven by metabolic alterations in cultivated murine M1(lipopolysaccharide) macrophages. Expression and extracellular flux analyses showed that urolithin A led to reduced <i>il1β, il6</i>, and <i>nos2</i> expression and boosted glycolytic activity in M1(lipopolysaccharide) macrophages. The pro-glycolytic feature of UROLITHIN A: occurred in order to causally contribute to its anti-inflammatory potential, based on experiments in cells with impeded glycolysis. Mdivi, an inhibitor of mitochondrial fission, blunted increased glycolytic activity and reduced M1 marker expression in M1(lipopolysaccharide/UROLITHIN A: ), indicating that segregation of mitochondria was a prerequisite for both actions of UROLITHIN A: . Overall, we uncovered a so far unappreciated metabolic facet within the anti-inflammatory activity of UROLITHIN A: and call for caution about the simplified notion of increased aerobic glycolysis as an inevitably proinflammatory feature in macrophages upon exposure to natural products.</p>","PeriodicalId":20127,"journal":{"name":"Planta medica","volume":"90 7-08","pages":"546-553"},"PeriodicalIF":2.1,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11156499/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141284465","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Planta medicaPub Date : 2024-06-01Epub Date: 2024-06-06DOI: 10.1055/a-2219-9724
Christian W Gruber
{"title":"Plant-Derived Peptides: (Neglected) Natural Products for Drug Discovery.","authors":"Christian W Gruber","doi":"10.1055/a-2219-9724","DOIUrl":"10.1055/a-2219-9724","url":null,"abstract":"<p><p>Peptides have emerged as key regulators in various physiological processes, including growth, development, stress, and defense responses within plants as well as ecological interactions of plants with microbes and animals. Understanding and harnessing plant peptides can lead to the development of innovative strategies for crop improvement, increasing agricultural productivity, and enhancing resilience to environmental challenges such as drought, pests, and diseases. Moreover, some plant peptides have shown promise in human health applications, with potential therapeutic benefits as ingredients in herbal medicines as well as novel drug leads. The exploration of plant peptides is essential for unraveling the mysteries of plant biology and advancing peptide drug discovery. This short personal commentary provides a very brief overview about the field of plant-derived peptides and a personal word of motivation to increase the number of scientists in pharmacognosy working with these fascinating biomolecules.</p>","PeriodicalId":20127,"journal":{"name":"Planta medica","volume":"90 7-08","pages":"627-630"},"PeriodicalIF":2.7,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11156498/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141284469","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Planta medicaPub Date : 2024-05-02DOI: 10.1055/a-2307-0400
{"title":"Statistical Experimental Designs for cLTB-Syn Vaccine Production Using Daucus carota Cell Suspension Cultures","authors":"","doi":"10.1055/a-2307-0400","DOIUrl":"https://doi.org/10.1055/a-2307-0400","url":null,"abstract":"The carrot-made LTB-Syn antigen (cLTB-Syn) is a vaccine candidate against synucleinopathies based on carrot cells expressing the target antigen LTB and syn epitopes. Therefore, the development of an efficient production process is required with media culture optimization to increase the production yields as the main goal. In this study, the effect of two nitrogen sources (urea and glutamate) on callus cultures producing cLTB-Syn was studied, observing that the addition of 17 mM urea to MS medium favored the biomass yield. To optimize the MS media composition, the influence of seven medium components on biomass and cLTB-Syn production was first evaluated by a Plackett–Burman design (PBD). Then, three factors were further analyzed using a central composite design (CCD) and response surface methodology (RSM). The results showed a 1.2-fold improvement in biomass, and a 4.5-fold improvement in cLTB-Syn production was achieved at the shake-flask scale. At the bioreactor scale, there was a 1.5-fold increase in biomass and a 2.8-fold increase in cLTB-Syn yield compared with the standard MS medium. Moreover, the cLTB-Syn vaccine induced humoral responses in BALB/c mice subjected to either oral or subcutaneous immunization. Therefore, cLTB-Syn is a promising vaccine candidate that will aid in developing immunotherapeutic strategies to combat PD and other neurodegenerative diseases without the need for cold storage, making it a financially viable option for massive immunization.","PeriodicalId":20127,"journal":{"name":"Planta medica","volume":"12 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2024-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140841757","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}