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Delbrouck JA, Desgagné M, Comeau C, Bouarab K, Malouin F, Boudreault PL. The Therapeutic Value of Solanum Steroidal (Glyco)Alkaloids: A 10-Year Comprehensive Review. Molecules 2023; 28:4957. [PMID: 37446619 DOI: 10.3390/molecules28134957] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Revised: 06/20/2023] [Accepted: 06/21/2023] [Indexed: 07/15/2023] Open
Abstract
Steroidal (glycol)alkaloids S(G)As are secondary metabolites made of a nitrogen-containing steroidal skeleton linked to a (poly)saccharide, naturally occurring in the members of the Solanaceae and Liliaceae plant families. The genus Solanum is familiar to all of us as a food source (tomato, potato, eggplant), but a few populations have also made it part of their ethnobotany for their medicinal properties. The recent development of the isolation, purification and analysis techniques have shed light on the structural diversity among the SGAs family, thus attracting scientists to investigate their various pharmacological properties. This review aims to overview the recent literature (2012-2022) on the pharmacological benefits displayed by the SGAs family. Over 17 different potential therapeutic applications (antibiotic, antiviral, anti-inflammatory, etc.) were reported over the past ten years, and this unique review analyzes each pharmacological effect independently without discrimination of either the SGA's chemical identity or their sources. A strong emphasis is placed on the discovery of their biological targets and the subsequent cellular mechanisms, discussing in vitro to in vivo biological data. The therapeutic value and the challenges of the solanum steroidal glycoalkaloid family is debated to provide new insights for future research towards clinical development.
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Affiliation(s)
- Julien A Delbrouck
- Institut de Pharmacologie, Faculté de Médecine et des Sciences de la Santé, Université de Sherbrooke, 3001 12e Avenue Nord, Sherbrooke, QC J1H 5N4, Canada
| | - Michael Desgagné
- Institut de Pharmacologie, Faculté de Médecine et des Sciences de la Santé, Université de Sherbrooke, 3001 12e Avenue Nord, Sherbrooke, QC J1H 5N4, Canada
| | - Christian Comeau
- Institut de Pharmacologie, Faculté de Médecine et des Sciences de la Santé, Université de Sherbrooke, 3001 12e Avenue Nord, Sherbrooke, QC J1H 5N4, Canada
| | - Kamal Bouarab
- Centre SEVE, Département de Biologie, Faculté des Sciences, Université de Sherbrooke, 2500 Boul de l'Université, Sherbrooke, QC J1K 2R1, Canada
| | - François Malouin
- Département de Biologie, Faculté des Sciences, Université de Sherbrooke, 2500 Boul de l'Université, Sherbrooke, QC J1K 2R1, Canada
| | - Pierre-Luc Boudreault
- Institut de Pharmacologie, Faculté de Médecine et des Sciences de la Santé, Université de Sherbrooke, 3001 12e Avenue Nord, Sherbrooke, QC J1H 5N4, Canada
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2
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Kasimir M, Wolbeck A, Behrens M, Humpf HU. Intestinal Metabolism of Selected Steroidal Glycoalkaloids in the Pig Cecum Model. ACS OMEGA 2023; 8:18266-18274. [PMID: 37251124 PMCID: PMC10210216 DOI: 10.1021/acsomega.3c01990] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Accepted: 04/25/2023] [Indexed: 05/31/2023]
Abstract
Due to the presence of the steroidal glycoalkaloid solanine, the potato was chosen as Germany's poisonous plant of the year 2022. Steroidal glycoalkaloids are secondary plant metabolites which have been reported to induce toxic as well as beneficial health effects. Nevertheless, data regarding occurrence, toxicokinetics, and metabolism of steroidal glycoalkaloids is scarce, and substantially more research is required for a proper risk assessment. Therefore, the intestinal metabolism of solanine, chaconine, solasonine, solamargine, and tomatine was investigated using the ex vivo pig cecum model. All steroidal glycoalkaloids were degraded by the porcine intestinal microbiota, releasing the respective aglycon. Furthermore, the hydrolysis rate was strongly dependent on the linked carbohydrate side chain. Solanine and solasonine, which are linked to a solatriose, were metabolized significantly faster than the chaconine and solamargin, which are linked to a chacotriose. In addition, stepwise cleavage of the carbohydrate side chain and the formation of β- and γ-intermediates were detected by HPLC-HRMS. The results provide valuable insights into the intestinal metabolism of selected steroidal glycoalkaloids and help to reduce uncertainties and improve risk assessment.
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Raigond P, Jayanty SS, Parmar V, Dutt S, Changan SS, Luthra SK, Singh B. Health-Promoting compounds in Potatoes: Tuber exhibiting great potential for human health. Food Chem 2023; 424:136368. [PMID: 37210846 DOI: 10.1016/j.foodchem.2023.136368] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Revised: 02/20/2023] [Accepted: 05/10/2023] [Indexed: 05/23/2023]
Abstract
Potatoes are consumed worldwide because of their high accessibility, low cost, taste, and diversity of cooking methods. The high carbohydrate content of potatoes masks the presence of -vitamins, polyphenols, minerals, amino acids, lectins and protein inhibitors in the minds of consumers. The consumption of potatoes faces challenges among health-conscious people. This review paper attempted to provide up-to-date information on new metabolites reported in potatoes that play role in disease prevention and overall human well-being. We tried to compile information on antidiabetic, antihypertensive, anticancer, antiobesity, antihyperlipidemic, and anti-inflammatory potential of potato along with role in improving gut health and satiety. In-vitro studies, human cell culture, and experimental animal and human clinical studies showed potatoes to exhibit a variety of health-enhancing properties. This article will not only popularize potato as a healthy food, but will also improve its use as a staple for the foreseeable future.
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Affiliation(s)
- Pinky Raigond
- Division of Crop Physiology, Biochemistry & Post Harvest Technology, ICAR-Central Potato Research Institute, Shimla, Himachal Pradesh, India; ICAR-National Research Centre on Pomegranate, Solapur, India.
| | - Sastry S Jayanty
- Department of Horticulture and LA, Colorado State University, USA
| | - Vandana Parmar
- Division of Crop Physiology, Biochemistry & Post Harvest Technology, ICAR-Central Potato Research Institute, Shimla, Himachal Pradesh, India
| | - Som Dutt
- Division of Crop Physiology, Biochemistry & Post Harvest Technology, ICAR-Central Potato Research Institute, Shimla, Himachal Pradesh, India
| | - Sushil S Changan
- Division of Crop Physiology, Biochemistry & Post Harvest Technology, ICAR-Central Potato Research Institute, Shimla, Himachal Pradesh, India
| | - Satish Kumar Luthra
- Division of Crop Improvement, ICAR-Central Potato Research Institute-Regional Station, Modipuram, Uttar Pradesh, India
| | - Brajesh Singh
- Division of Crop Physiology, Biochemistry & Post Harvest Technology, ICAR-Central Potato Research Institute, Shimla, Himachal Pradesh, India
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4
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Bioactive Substances of Potato Juice Reveal Synergy in Cytotoxic Activity against Cancer Cells of Digestive System Studied In Vitro. Nutrients 2022; 15:nu15010114. [PMID: 36615771 PMCID: PMC9823805 DOI: 10.3390/nu15010114] [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: 11/14/2022] [Revised: 12/22/2022] [Accepted: 12/23/2022] [Indexed: 12/28/2022] Open
Abstract
More and more literature data indicate the health-promoting effect of potato juice (PJ). However, to date, it has not been precisely explained which of the many compounds present in PJ exhibit biological activity. The work aimed to establish the antiproliferative effect of gastrointestinal digested PJ and the products of its processing. Fresh PJs derived from three edible potato varieties, industrial side stream resulting from starch production, partially deproteinized PJ derived from feed protein production line, and three different potato protein preparations subjected to digestion in the artificial gastrointestinal tract were used in this study. The cytotoxic potential of glycoalkaloids (GAs), phenolic acids, digested PJ, and products of PJ processing was determined in human normal and cancer cells derived from the digestive system. The results showed that GAs exhibit concentration-dependent cytotoxicity against all analyzed cell lines. In contrast, phenolic acids (caffeic, ferulic, and chlorogenic acid) do not show cytotoxicity in the applied cell lines. A correlation between cytotoxic potency and GAs content was found in all PJ products studied. The most potent effects were observed under treatment with deproteinized PJ, a product of industrial processing of PJ, distinguished by the highest effective activity among the fresh juice products studied. Moreover, this preparation revealed a favorable cytotoxicity ratio towards cancer cells compared to normal cells. Statistical analysis of the obtained results showed the synergistic effect of other bioactive substances contained in PJ and its products, which may be crucial in further research on the possibility of using PJ as a source of compounds of therapeutic importance.
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Shen DD, Hua YP, Huang JY, Yu ST, Wu TB, Zhang Y, Chen HL, Yue CP. Multiomic Analysis Reveals Core Regulatory Mechanisms underlying Steroidal Glycoalkaloid Metabolism in Potato Tubers. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:415-426. [PMID: 34951540 DOI: 10.1021/acs.jafc.1c06867] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Steroidal glycoalkaloids (SGAs) present in germinated potato tubers are toxic; however, the mechanisms underlying SGA metabolism are poorly understood. Therefore, integrated transcriptome, metabolome, and hormone analyses were performed in this study to identify and characterize the key regulatory genes, metabolites, and phytohormones related to glycoalkaloid regulation. Based on transcriptome sequencing of bud eyes of germinated and dormant potato tubers, a total of 6260 differentially expressed genes were identified, which were mainly responsible for phytohormone signal transduction, carbohydrate metabolism, and secondary metabolite biosynthesis. Two TCP14 genes were identified as the core transcription factors that potentially regulate SGA synthesis. Metabolite analysis indicated that 149 significantly different metabolites were detected, and they were enriched in metabolic and biosynthetic pathways of secondary metabolites. In these pathways, the α-solanine content was increased and the expression of genes related to glycoalkaloid biosynthesis was upregulated. Levels of gibberellin and jasmonic acid were increased, whereas that of abscisic acid was decreased. This study lays a foundation for investigating the biosynthesis and regulation of SGAs and provides the reference for the production and consumption of potato tubers.
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Affiliation(s)
- Dan-Dan Shen
- School of Agricultural Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Ying-Peng Hua
- School of Agricultural Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Jin-Yong Huang
- School of Agricultural Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Shu-Ting Yu
- School of Life Science, Zhengzhou University, Zhengzhou 450001, China
| | - Tai-Bo Wu
- School of Life Science, Zhengzhou University, Zhengzhou 450001, China
| | - Yannning Zhang
- School of Life Science, Zhengzhou University, Zhengzhou 450001, China
| | - Huan-Li Chen
- Zhengzhou Vegetable Research Institute, Zhengzhou 450001, China
| | - Cai-Peng Yue
- School of Agricultural Sciences, Zhengzhou University, Zhengzhou 450001, China
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6
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Kowalczewski PŁ, Olejnik A, Świtek S, Bzducha-Wróbel A, Kubiak P, Kujawska M, Lewandowicz G. Bioactive compounds of potato ( Solanum tuberosum L.) juice: from industry waste to food and medical applications. CRITICAL REVIEWS IN PLANT SCIENCES 2022; 41:52-89. [DOI: 10.1080/07352689.2022.2057749] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/16/2024]
Affiliation(s)
| | - Anna Olejnik
- Department of Biotechnology and Food Microbiology, Poznań University of Life Sciences, Poznań, Poland
| | - Stanisław Świtek
- Department of Agronomy, Poznań University of Life Sciences, Poznań, Poland
| | - Anna Bzducha-Wróbel
- Department of Food Biotechnology and Microbiology, Warsaw University of Life Sciences, Warsaw, Poland
| | - Piotr Kubiak
- Department of Biotechnology and Food Microbiology, Poznań University of Life Sciences, Poznań, Poland
| | - Małgorzata Kujawska
- Department of Toxicology, Poznan University of Medical Sciences, Poznań, Poland
| | - Grażyna Lewandowicz
- Department of Biotechnology and Food Microbiology, Poznań University of Life Sciences, Poznań, Poland
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7
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Ostreikova TO, Kalinkina OV, Bogomolov NG, Chernykh IV. Glycoalkaloids of Plants in the Family Solanaceae (Nightshade) as Potential Drugs. Pharm Chem J 2022; 56:948-957. [PMID: 36277854 PMCID: PMC9579588 DOI: 10.1007/s11094-022-02731-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Indexed: 11/05/2022]
Abstract
Worldwide interest in medicinal plants and related drugs is growing because of the increased spectrum of new synthetic drugs. In this context, secondary plant metabolites are most significant. This review analyzes data on the structures and biosyntheses of metabolites such as glycoalkaloids; methods for their extraction from plants of the family Solanaceae, particularly potato S. tuberosum; their qualitative and quantitative analysis; biological activity; and toxicity. This information could be useful in the selection of methods for sample preparation and extraction of glycoalkaloids during the search for new plant sources with prospects of creating effective and safe pharmacological agents.
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Affiliation(s)
- T. O. Ostreikova
- grid.445664.10000 0004 0562 7304I. P. Pavlov Ryazan State Medical University, Ministry of Health of the Russian Federation, 8 Vysokovol’tnaya St, Ryazan, 390026 Russia
| | - O. V. Kalinkina
- grid.445664.10000 0004 0562 7304I. P. Pavlov Ryazan State Medical University, Ministry of Health of the Russian Federation, 8 Vysokovol’tnaya St, Ryazan, 390026 Russia
| | - N. G. Bogomolov
- grid.445664.10000 0004 0562 7304I. P. Pavlov Ryazan State Medical University, Ministry of Health of the Russian Federation, 8 Vysokovol’tnaya St, Ryazan, 390026 Russia
| | - I. V. Chernykh
- grid.445664.10000 0004 0562 7304I. P. Pavlov Ryazan State Medical University, Ministry of Health of the Russian Federation, 8 Vysokovol’tnaya St, Ryazan, 390026 Russia
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8
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Synthesis of Demissidine Analogues from Tigogenin via Imine Intermediates. Int J Mol Sci 2021; 22:ijms221910879. [PMID: 34639219 PMCID: PMC8509427 DOI: 10.3390/ijms221910879] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2021] [Revised: 09/30/2021] [Accepted: 10/05/2021] [Indexed: 11/16/2022] Open
Abstract
A five-step transformation of a spiroketal side chain of tigogenin into an indolizidine system present in solanidane alkaloids such as demissidine and solanidine was elaborated. The key intermediate in the synthesis was spiroimine 3 readily obtained from tigogenin by its RuO4 oxidation to 5,6-dihydrokryptogenin followed by amination with aluminum amide generated in situ from DIBAlH and ammonium chloride. The mild reduction of spiroimine to a 26-hydroxy-dihydropyrrole derivative and subsequent mesylation resulted in the formation of 25-epidemissidinium salt or 23-sulfone depending on reaction conditions.
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Mandlik DS, Mandlik SK. An Overview of Hepatocellular Carcinoma with Emphasis on Dietary Products and Herbal Remedies. Nutr Cancer 2021; 74:1549-1567. [PMID: 34396860 DOI: 10.1080/01635581.2021.1965630] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
The most common principal malignant tumor that accounts for ∼80% of cases of liver cancer across the world is hepatocellular carcinoma (HCC). It is a multifacetedillness that is caused by several risk factors and often progresses in the context of underlying cirrhosis. It is tremendously difficult and essential for the screening of novel therapeutic medications to establish HCC preclinical models that are equivalent to clinical diseases settings, i.e., representing the tumor microenvironment of HCC. In the progress of HCC, numerous molecular cascades have been supposed to play a part. Sorafenib is the only drug permitted by the US Food and Drug Administration for the treatment of HCC. Yet because of the increasing resistance to the drug and its toxicity, clinical treatment methods are not completely adequate. Newer treatment therapy options are essential for the management of HCC in patients. Natural compounds can be afforded by the patients with improved results with less toxicity and fewer side effects, among different methods of liver cancer treatment. The treatment and management of HCC with natural drugs and their phytoconstituents are connected to several paths that can prevent the occurrence and progress of HCC in several ways. The present review summarizes the etiology of HCC, molecular pathways, newer therapeutic approaches, natural dietary products, herbal plants and phytoconstituents for HCC treatment.
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Affiliation(s)
- Deepa S Mandlik
- Poona College of Pharmacy, Bharati Vidyapeeth, Deemed to be University, Pune, India
| | - Satish K Mandlik
- Poona College of Pharmacy, Bharati Vidyapeeth, Deemed to be University, Pune, India
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10
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Biosynthesis of α-solanine and α-chaconine in potato leaves (Solanum tuberosum L.) - A 13CO 2 study. Food Chem 2021; 365:130461. [PMID: 34229992 DOI: 10.1016/j.foodchem.2021.130461] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Revised: 05/02/2021] [Accepted: 06/23/2021] [Indexed: 11/21/2022]
Abstract
α-Solanine and α-chaconine are the major glycoalkaloids (SGAs) in potatoes, but up to now the biosynthesis of these saponins is not fully understood. In planta13CO2 labeling experiments monitored by nuclear magnetic resonance spectroscopy (NMR) and high-resolution mass spectrometry (HRMS) unraveled the SGA biosynthetic pathways from CO2 photosynthates via early precursors to the SGAs. After a pulse of ~ 700 ppm 13CO2 for four hours, followed by a chase period for seven days, specific 13C-distributions were detected in SGAs from the leaves of the labeled plant. NMR analysis determined the positional 13C-enrichments in α-solanine and α-chaconine characterized by 13C2-pairs in their aglycones. These patterns were in perfect agreement with a mevalonate-dependent biosynthesis of the isopentenyl diphosphate and dimethylallyl diphosphate precursors. The 13C-distributions also suggested cyclization of the 2,3-oxidosqualene precursor into the solanidine aglycone backbone involving a non-stereoselective hydroxylation step of the sterol a mixture of 25S-/25R-epimers of the SGAs.
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Hellmann H, Goyer A, Navarre DA. Antioxidants in Potatoes: A Functional View on One of the Major Food Crops Worldwide. Molecules 2021; 26:2446. [PMID: 33922183 PMCID: PMC8122721 DOI: 10.3390/molecules26092446] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Revised: 04/07/2021] [Accepted: 04/19/2021] [Indexed: 12/14/2022] Open
Abstract
With a growing world population, accelerating climate changes, and limited arable land, it is critical to focus on plant-based resources for sustainable food production. In addition, plants are a cornucopia for secondary metabolites, of which many have robust antioxidative capacities and are beneficial for human health. Potato is one of the major food crops worldwide, and is recognized by the United Nations as an excellent food source for an increasing world population. Potato tubers are rich in a plethora of antioxidants with an array of health-promoting effects. This review article provides a detailed overview about the biosynthesis, chemical and health-promoting properties of the most abundant antioxidants in potato tubers, including several vitamins, carotenoids and phenylpropanoids. The dietary contribution of diverse commercial and primitive cultivars are detailed and document that potato contributes much more than just complex carbohydrates to the diet. Finally, the review provides insights into the current and future potential of potato-based systems as tools and resources for healthy and sustainable food production.
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Affiliation(s)
- Hanjo Hellmann
- School of Biological Sciences, Washington State University, Pullman, WA 99164, USA
| | - Aymeric Goyer
- Hermiston Agricultural Research and Extension Center, Department of Botany and Plant Pathology, Oregon State University, Hermiston, OR 97838, USA;
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Prediction of α-Solanine and α-Chaconine in Potato Tubers from Hunter Color Values and VIS/NIR Spectra. J FOOD QUALITY 2020. [DOI: 10.1155/2020/8884219] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The glycoalkaloids contents of potato tubers are usually measured by the destructive analysis that consumes time and requires expensive high-performance equipment. This study was carried out to determine the possibility of nondestructive estimation of α-solanine and α-chaconine content in potato tubers. Visible/near-infrared (VIS/NIR) spectra, color values, and the reference α-solanine and α-chaconine were measured from 180 tubers of ‘Atlantic’ and ‘Trent’ potato cultivars with eight replications at two-week intervals during the storage up to ten weeks. The partial least square (PLS) regression method was used to develop models correlating color and spectra data to the measured reference data. Regression coefficient (r) between color variables (Hunter
,
, and (
)2) and the actual measured values of a-solanine and a-chaconine content were 0.74, 0.62, and 0.62 and 0.70, 0.58, and 0.57, respectively, for the prediction set. Concurrently, equations were developed from color variables in multiple regression with r-values of 0.76 and 0.71 for α-solanine and α-chaconine, respectively. Additionally, the selected PLS model of VIS/NIR spectra had promising predictive power for α-solanine and α-chaconine with r-values of 0.68 and 0.63, respectively, between measured and predicted samples. Taken together, although it requires further studies to improve the prediction power of the developed models, the results of this study revealed the possibility of using VIS/NIR spectra and color variables for the prediction of α-solanine and α-chaconine contents from intact unpeeled potato tubers with chemical-free, fast, and cheap assessment methods.
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Calcio Gaudino E, Colletti A, Grillo G, Tabasso S, Cravotto G. Emerging Processing Technologies for the Recovery of Valuable Bioactive Compounds from Potato Peels. Foods 2020; 9:foods9111598. [PMID: 33153164 PMCID: PMC7692071 DOI: 10.3390/foods9111598] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Revised: 10/25/2020] [Accepted: 10/28/2020] [Indexed: 12/17/2022] Open
Abstract
Potato peel (PP) is the major underutilised by-product in the potato-processing industry and a potential source of valuable bioactive molecules. Among them, glycoalkaloids and polyphenols are important precursors for steroid hormones and natural antioxidants, respectively. Moreover, the huge quantities of industrial potato-peel waste that are produced are a rich source of primary metabolites, which principally include starch as well as non-starch polysaccharides, proteins, lipids, lignin and cellulose. All carbohydrates are prone to undergo fermentation to produce ethanol, lactic and acetic acid. Finally, the main portion of PP is made up of alcohol-insoluble matter with a dietary fibre content of approximatively 40%. The present review summarises the recent advances and emerging technologies in potato-peel extraction and further valorisation processing in the food industry.
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Affiliation(s)
- Emanuela Calcio Gaudino
- Department of Drug Science and Technology, University of Turin, Via P. Giuria 9, 10125 Turin, Italy; (E.C.G.); (A.C.); (G.G.)
| | - Alessandro Colletti
- Department of Drug Science and Technology, University of Turin, Via P. Giuria 9, 10125 Turin, Italy; (E.C.G.); (A.C.); (G.G.)
| | - Giorgio Grillo
- Department of Drug Science and Technology, University of Turin, Via P. Giuria 9, 10125 Turin, Italy; (E.C.G.); (A.C.); (G.G.)
| | - Silvia Tabasso
- Department of Chemistry, University of Turin, Via P. Giuria 7, 10125 Turin, Italy;
| | - Giancarlo Cravotto
- Department of Drug Science and Technology, University of Turin, Via P. Giuria 9, 10125 Turin, Italy; (E.C.G.); (A.C.); (G.G.)
- Centre of Bioanalytical Research and Molecular Design, Sechenov First Moscow State Medical University, 8 Trubetskaya ul, Moscow 119991, Russia
- Correspondence: ; Tel.: +39-011-6707183
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Mandlik DS, Mandlik SK. Herbal and Natural Dietary Products: Upcoming Therapeutic Approach for Prevention and Treatment of Hepatocellular Carcinoma. Nutr Cancer 2020; 73:2130-2154. [PMID: 33073617 DOI: 10.1080/01635581.2020.1834591] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The most common tumor linked with elevated death rates is considered the hepatocellular carcinoma (HCC), sometimes called the malignant hepatoma. The initiation and progression of HCC are triggered by multiple factors like long term alcohol consumption, metabolic disorders, fatty liver disease, hepatitis B and C infection, age, and oxidative stress. Sorafenib is the merely US Food and Drug Administration (FDA)-approved drug used to treat HCC. Several treatment methods are available for HCC therapy such as chemotherapy, immunotherapy and adjuvant therapy but they often lead to several side effects. Yet these treatment methods are not entirely adequate due to the increasing resistance to the drug and their toxicity. Many natural products help to prevent and treat HCC. A variety of pathways are associated with the prevention and treatment of HCC with herbal products and their active components. Accumulating research shows that certain natural dietary compounds are possible source of hepatic cancer prevention and treatments, such as black currant, strawberries, plum, grapes, pomegranate, cruciferous crops, tomatoes, French beans, turmeric, garlic, ginger, asparagus, and many more. Such a dietary natural products and their active constituents may prevent the production and advancement of liver cancer in many ways such as guarding against liver carcinogens, improving the effectiveness of chemotherapeutic medications, inhibiting the growth, metastasis of tumor cells, reducing oxidative stress, and chronic inflammation. The present review article represents hepatic carcinoma etiology, role of herbal products, their active constituents, and dietary natural products for the prevention and treatment of HCC along with their possible mechanisms of action.
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Affiliation(s)
- Deepa S Mandlik
- Department of Pharmacology, Bharat Vidyapeeth (Deemed to be University), Poona College of Pharmacy, Pune, Maharashtra, India
| | - Satish K Mandlik
- Department of Pharmaceutics, Sinhgad College of Pharmacy, Pune, Maharashtra, India
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El-Daly SM, Gouhar SA, Gamal-Eldeen AM, Abdel Hamid FF, Ashour MN, Hassan NS. Synergistic Effect of α-Solanine and Cisplatin Induces Apoptosis and Enhances Cell Cycle Arrest in Human Hepatocellular Carcinoma Cells. Anticancer Agents Med Chem 2020; 19:2197-2210. [PMID: 31566136 DOI: 10.2174/1871520619666190930123520] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Revised: 06/01/2019] [Accepted: 06/03/2019] [Indexed: 01/09/2023]
Abstract
AIM The clinical application of cisplatin is limited by severe side effects associated with high applied doses. The synergistic effect of a combination treatment of a low dose of cisplatin with the natural alkaloid α-solanine on human hepatocellular carcinoma cells was evaluated. METHODS HepG2 cells were exposed to low doses of α-solanine and cisplatin, either independently or in combination. The efficiency of this treatment modality was evaluated by investigating cell growth inhibition, cell cycle arrest, and apoptosis enhancement. RESULTS α-solanine synergistically potentiated the effect of cisplatin on cell growth inhibition and significantly induced apoptosis. This synergistic effect was mediated by inducing cell cycle arrest at the G2/M phase, enhancing DNA fragmentation and increasing apoptosis through the activation of caspase 3/7 and/or elevating the expression of the death receptors DR4 and DR5. The induced apoptosis from this combination treatment was also mediated by reducing the expression of the anti-apoptotic mediators Bcl-2 and survivin, as well as by modulating the miR-21 expression. CONCLUSION Our study provides strong evidence that a combination treatment of low doses of α-solanine and cisplatin exerts a synergistic anticancer effect and provides an effective treatment strategy against hepatocellular carcinoma.
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Affiliation(s)
- Sherien M El-Daly
- Medical Biochemistry Department, Medical Research Division, National Research Centre, Dokki, 12622, Cairo, Egypt.,Cancer Biology and Genetics Laboratory, Centre of Excellence for Advanced Sciences, National Research Centre, Dokki 12622, Cairo, Egypt
| | - Shaimaa A Gouhar
- Medical Biochemistry Department, Medical Research Division, National Research Centre, Dokki, 12622, Cairo, Egypt
| | - Amira M Gamal-Eldeen
- Cancer Biology and Genetics Laboratory, Centre of Excellence for Advanced Sciences, National Research Centre, Dokki 12622, Cairo, Egypt.,Biochemistry Department, National Research Centre, Dokki, Cairo, Egypt.,Clinical Laboratory Department, College of Applied Medical Sciences, Taif University, At Taif 26521, Saudi Arabia
| | - Fatma F Abdel Hamid
- Biochemistry Department, Faculty of Science, Ain Shams University, Cairo, Egypt
| | - Magdi N Ashour
- Medical Biochemistry Department, Medical Research Division, National Research Centre, Dokki, 12622, Cairo, Egypt
| | - Nahla S Hassan
- Biochemistry Department, Faculty of Science, Ain Shams University, Cairo, Egypt
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16
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Friedman M, Tam CC, Cheng LW, Land KM. Anti-trichomonad activities of different compounds from foods, marine products, and medicinal plants: a review. BMC Complement Med Ther 2020; 20:271. [PMID: 32907567 PMCID: PMC7479404 DOI: 10.1186/s12906-020-03061-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Accepted: 08/25/2020] [Indexed: 02/07/2023] Open
Abstract
Human trichomoniasis, caused by the pathogenic parasitic protozoan Trichomonas vaginalis, is the most common non-viral sexually transmitted disease that contributes to reproductive morbidity in affected women and possibly to prostate cancer in men. Tritrichomonas foetus strains cause the disease trichomoniasis in farm animals (cattle, bulls, pigs) and diarrhea in domestic animals (cats and dogs). Because some T. vaginalis strains have become resistant to the widely used drug metronidazole, there is a need to develop alternative treatments, based on safe natural products that have the potential to replace and/or enhance the activity of lower doses of metronidazole. To help meet this need, this overview collates and interprets worldwide reported studies on the efficacy of structurally different classes of food, marine, and medicinal plant extracts and some of their bioactive pure compounds against T. vaginalis and T. foetus in vitro and in infected mice and women. Active food extracts include potato peels and their glycoalkaloids α-chaconine and α-solanine, caffeic and chlorogenic acids, and quercetin; the tomato glycoalkaloid α-tomatine; theaflavin-rich black tea extracts and bioactive theaflavins; plant essential oils and their compounds (+)-α-bisabolol and eugenol; the grape skin compound resveratrol; the kidney bean lectin, marine extracts from algae, seaweeds, and fungi and compounds that are derived from fungi; medicinal extracts and about 30 isolated pure compounds. Also covered are the inactivation of drug-resistant T. vaginalis and T. foetus strains by sensitized light; anti-trichomonad effects in mice and women; beneficial effects of probiotics in women; and mechanisms that govern cell death. The summarized findings will hopefully stimulate additional research, including molecular-mechanism-guided inactivations and human clinical studies, that will help ameliorate adverse effects of pathogenic protozoa.
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Affiliation(s)
- Mendel Friedman
- United States Department of Agriculture, Healthy Processed Foods Research Unit, Agricultural Research Service, Albany, CA, 94710, USA.
| | - Christina C Tam
- United States Department of Agriculture, Foodborne Toxins Detection and Prevention Research Unit, Agricultural Research Service, Albany, California, 94710, USA
| | - Luisa W Cheng
- United States Department of Agriculture, Foodborne Toxins Detection and Prevention Research Unit, Agricultural Research Service, Albany, California, 94710, USA
| | - Kirkwood M Land
- Department of Biological Sciences, University of the Pacific, Stockton, CA, 95211, USA
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17
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Dey P, Kundu A, Chakraborty HJ, Kar B, Choi WS, Lee BM, Bhakta T, Atanasov AG, Kim HS. Therapeutic value of steroidal alkaloids in cancer: Current trends and future perspectives. Int J Cancer 2019; 145:1731-1744. [PMID: 30387881 PMCID: PMC6767045 DOI: 10.1002/ijc.31965] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Revised: 10/04/2018] [Accepted: 10/19/2018] [Indexed: 12/21/2022]
Abstract
Discovery and development of new potentially selective anticancer agents are necessary to prevent a global cancer health crisis. Currently, alternative medicinal agents derived from plants have been extensively investigated to develop anticancer drugs with fewer adverse effects. Among them, steroidal alkaloids are conventional secondary metabolites that comprise an important class of natural products found in plants, marine organisms and invertebrates, and constitute a judicious choice as potential anti-cancer leads. Traditional medicine and modern science have shown that representatives from this compound group possess potential antimicrobial, analgesic, anticancer and anti-inflammatory effects. Therefore, systematic and recapitulated information about the bioactivity of these compounds, with special emphasis on the molecular or cellular mechanisms, is of high interest. In this review, we methodically discuss the in vitro and in vivo potential of the anticancer activity of natural steroidal alkaloids and their synthetic and semi-synthetic derivatives. This review focuses on cumulative and comprehensive molecular mechanisms, which will help researchers understand the molecular pathways involving steroid alkaloids to generate a selective and safe new lead compound with improved therapeutic applications for cancer prevention and therapy. In vitro and in vivo studies provide evidence about the promising therapeutic potential of steroidal alkaloids in various cancer cell lines, but advanced pharmacokinetic and clinical experiments are required to develop more selective and safe drugs for cancer treatment.
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Affiliation(s)
- Prasanta Dey
- School of PharmacySungkyunkwan UniversitySuwonRepublic of Korea
| | - Amit Kundu
- School of PharmacySungkyunkwan UniversitySuwonRepublic of Korea
| | | | - Babli Kar
- Bengal Homoeopathic Medical College and HospitalAsansolIndia
| | - Wahn Soo Choi
- School of MedicineKonkuk UniversityChungjuRepublic of Korea
| | - Byung Mu Lee
- School of PharmacySungkyunkwan UniversitySuwonRepublic of Korea
| | - Tejendra Bhakta
- Regional Institute of Pharmaceutical Science & TechnologyTripuraIndia
| | - Atanas G. Atanasov
- Institute of Genetics and Animal Breeding of the Polish Academy of SciencesJastrzebiecPoland
- Department of PharmacognosyUniversity of ViennaViennaAustria
| | - Hyung Sik Kim
- School of PharmacySungkyunkwan UniversitySuwonRepublic of Korea
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18
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Benkeblia N. Potato Glycoalkaloids: occurrence, biological activities and extraction for biovalorisation – a review. Int J Food Sci Technol 2019. [DOI: 10.1111/ijfs.14330] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Noureddine Benkeblia
- Department of Life Sciences – The Biotechnology Centre The University of the West Indies Mona Campus, Kingston 7 Kingston Jamaica
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19
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Glycoalkaloids: Structure, Properties, and Interactions with Model Membrane Systems. Processes (Basel) 2019. [DOI: 10.3390/pr7080513] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The glycoalkaloids which are secondary metabolites from plants have proven to be of significant interest for their biological properties both in terms of their roles in plant biology and the effects they exhibit when ingested by humans. The main feature of the action of glycoalkaloids is their strong binding to 3β-hydroxysterols, such as cholesterol, to form complexes with the consequence that membrane structure is significantly perturbed, and leakage or release of contents inside cells or liposomes becomes possible. The glycoalkaloids have been studied for their ability to inhibit the growth of cancer cells and in other roles such as vaccine adjuvants and as synergistic agents when combined with other therapeutics. The glycoalkaloids have rich and complex physical behavior when interacting with model membranes for which many aspects are yet to be understood. This review introduces the general properties of glycoalkaloids and aspects of their behavior, and then summarizes their effects against model membrane systems. While there are many glycoalkaloids that have been identified, most physical or biological studies have focused on the readily available ones from tomatoes (α-tomatine), potatoes (α-chaconine and α-solanine), and eggplant (α-solamargine and α-solasonine).
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20
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Ahmad R. Steroidal glycoalkaloids from Solanum nigrum target cytoskeletal proteins: an in silico analysis. PeerJ 2019; 7:e6012. [PMID: 30627484 PMCID: PMC6321755 DOI: 10.7717/peerj.6012] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Accepted: 10/26/2018] [Indexed: 12/03/2022] Open
Abstract
Background Solanum nigrum (black nightshade; S. nigrum), a member of family Solanaceae, has been endowed with a heterogeneous array of secondary metabolites of which the steroidal glycoalkaloids (SGAs) and steroidal saponins (SS) have vast potential to serve as anticancer agents. Since there has been much controversy regarding safety of use of glycoalkaloids as anticancer agents, this area has remained more or less unexplored. Cytoskeletal proteins like actin play an important role in maintaining cell shape, synchronizing cell division, cell motility, etc. and along with their accessory proteins may also serve as important therapeutic targets for potential anticancer candidates. In the present study, glycoalkaloids and saponins from S. nigrum were screened for their interaction and binding affinity to cytoskeletal proteins, using molecular docking. Methods Bioactivity score and Prediction of Activity Spectra for Substances (PASS) analysis were performed using softwares Molinspiration and Osiris Data Explorer respectively, to assess the feasibility of selected phytoconstituents as potential drug candidates. The results were compared with two standard reference drugs doxorubicin hydrochloride (anticancer) and tetracycline (antibiotic). Multivariate data obtained were analyzed using principal component analysis (PCA). Results Docking analysis revealed that the binding affinities of the phytoconstituents towards the target cytoskeletal proteins decreased in the order coronin>villin>ezrin>vimentin>gelsolin>thymosin>cofilin. Glycoalkaloid solasonine displayed the greatest binding affinity towards the target proteins followed by alpha-solanine whereas amongst the saponins, nigrumnin-I showed maximum binding affinity. PASS Analysis of the selected phytoconstituents revealed 1 to 3 violations of Lipinski’s parameters indicating the need for modification of their structure-activity relationship (SAR) for improvement of their bioactivity and bioavailability. Glycoalkaloids and saponins all had bioactivity scores between −5.0 and 0.0 with respect to various receptor proteins and target enzymes. Solanidine, solasodine and solamargine had positive values of druglikeness which indicated that these compounds have the potential for development into future anticancer drugs. Toxicity potential evaluation revealed that glycoalkaloids and saponins had no toxicity, tumorigenicity or irritant effect(s). SAR analysis revealed that the number, type and location of sugar or the substitution of hydroxyl group on alkaloid backbone had an effect on the activity and that the presence of α-L-rhamnopyranose sugar at C-2 was critical for a compound to exhibit anticancer activity. Conclusion The present study revealed some cytoskeletal target(s) for S. nigrum phytoconstituents by docking analysis that have not been previously reported and thus warrant further investigations both in vitro and in vivo.
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Affiliation(s)
- Rumana Ahmad
- Department of Biochemisty, Era's Lucknow Medical College and Hospital, Era University, Lucknow, Uttar Pradesh, India
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21
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Fatima I, Kanwal S, Mahmood T. Natural Products Mediated Targeting of Virally Infected Cancer. Dose Response 2019; 17:1559325818813227. [PMID: 30670935 PMCID: PMC6328957 DOI: 10.1177/1559325818813227] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2018] [Revised: 10/01/2018] [Accepted: 10/10/2018] [Indexed: 12/18/2022] Open
Abstract
The role of viral infection in developing cancer was determined in the start of 20th century. Until now, 8 different virus-associated cancers have been discovered and most of them progressed in immunosuppressed individuals. The aim of the present study is to look into the benefits of natural products in treating virally infected cancers. The study focuses on bioactive compounds derived from natural sources. Numerous pharmaceutical agents have been identified from plants (vincristine, vinblastine, stilbenes, combretastatin, and silymarin), marine organisms (bryostatins, cephalostatin, ecteinascidins, didemnin, and dolastatin), insects (cantharidin, mastoparan, parectadial, and cecropins), and microorganisms (vancomycin, rhizoxin, ansamitocins, mitomycin, and rapamycin). Beside these, various compounds have been observed from fruits and vegetables which can be utilized in anticancer therapy. These include curcumin in turmeric, resveratrol in red grapes, S-allyl cysteine in allium, allicin in garlic, catechins in green tea, and β-carotene in carrots. The present study addresses various types of virally infected cancers, their mechanism of action, and the role of different cell surface molecules elicited during viral binding and entry into the target cell along with the anticancer drugs derived from natural products by targeting screening of bioactive compounds from natural sources.
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Affiliation(s)
- Iram Fatima
- Department of Plant Sciences, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, Pakistan
| | - Sobia Kanwal
- Department of Zoology, University of Gujrat Sub-campus Rawalpindi, Rawalpindi, Pakistan
| | - Tariq Mahmood
- Department of Plant Sciences, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, Pakistan
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22
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Yi YJ, Jia XH, Zhu C, Wang JY, Chen JR, Wang H, Li YJ. Solanine reverses multidrug resistance in human myelogenous leukemia K562/ADM cells by downregulating MRP1 expression. Oncol Lett 2018; 15:10070-10076. [PMID: 29928376 DOI: 10.3892/ol.2018.8563] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2015] [Accepted: 11/03/2016] [Indexed: 12/15/2022] Open
Abstract
Multidrug resistance (MDR) in leukemia cells is a major obstacle to chemotherapeutic treatment. High expression and constitutive activation of multidrug resistance protein 1 (MRP1) has been associated with the development of resistance to anticancer drugs in a number of tumor types. The activity of c-Jun N-terminal kinase 1 (JNK1) is associated with the occurrence of MDR and MRP1 expression. The present study aimed to investigate the ability of solanine to resensitize the Adriamycin® (ADR)-resistant human myelogenous leukemia cell line K562/ADM to ADR. Results of the Cell Counting Kit-8 assay demonstrated that solanine inhibited K562/ADM cell proliferation. K562/ADM cell sensitivity to ADR was increased following treatment with solanine, indicated by increased intracellular accumulation of ADR. Western blotting demonstrated that treatment with solanine led to reduced MRP1 protein expression, suggesting that solanine-induced ADR accumulation is due to the downregulation of MRP1 expression. Solanine-mediated MRP1 downregulation was observed to be dependent on the JNK signaling pathway. In conclusion, the results of the present study suggest that solanine reverses MDR in K562/ADM cells and may represent a novel therapeutic agent for the treatment of human myelogenous leukemia.
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Affiliation(s)
- Ying-Jie Yi
- Department of Pediatrics, The Affiliated Hospital of Binzhou Medical University, Binzhou, Shandong 256603, P.R. China
| | - Xiu-Hong Jia
- Department of Pediatrics, The Affiliated Hospital of Binzhou Medical University, Binzhou, Shandong 256603, P.R. China
| | - Cong Zhu
- Department of Pediatrics, The Affiliated Hospital of Binzhou Medical University, Binzhou, Shandong 256603, P.R. China
| | - Jian-Yong Wang
- Department of Pediatrics, The Affiliated Hospital of Binzhou Medical University, Binzhou, Shandong 256603, P.R. China
| | - Jie-Ru Chen
- Department of Pediatrics, The Affiliated Hospital of Binzhou Medical University, Binzhou, Shandong 256603, P.R. China
| | - Hong Wang
- Department of Pediatrics, The Affiliated Hospital of Binzhou Medical University, Binzhou, Shandong 256603, P.R. China
| | - You-Jie Li
- Department of Biochemistry and Molecular Biology, Key Laboratory of Tumor Molecular Biology, Binzhou Medical University, Yantai, Shandong 264003, P.R. China
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23
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Elkahoui S, Bartley GE, Yokoyama WH, Friedman M. Dietary Supplementation of Potato Peel Powders Prepared from Conventional and Organic Russet and Non-organic Gold and Red Potatoes Reduces Weight Gain in Mice on a High-Fat Diet. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:6064-6072. [PMID: 29877090 DOI: 10.1021/acs.jafc.8b01987] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The present study investigated the potential of potato peel powders, high in bioactive phenolic compounds and glycoalkaloids, to reduce weight gain in mice consuming a high-fat diet. Potato peel powders were prepared from the following fresh commercial potato varieties by hand-peeling and then freeze-drying and grinding the peels into powder: non-organic (conventionally grown) gold, red, and Russet and organically grown Russet. Mice diets (25% fat by weight) were supplemented with either 10 or 20% potato peel powders for 3 weeks. In comparison to the control diet, the isocaloric and isonitrogenous peel-containing diets induced a reduction in weight gain that ranged from 17-45% (10% peel diets) to 46-73% (20% peel diets), suggesting that differences in weight gain are associated with the potato peel source and peel concentration of the diet. Weight reductions were accompanied by reduced epididymal white adipose tissue ranging from 22 to 80% as well as changes in the microbiota analyzed using next-generation sequencing and in obesity-associated genetic biomarkers determined by the quantitative real-time polymerase chain reaction. Safety aspects and possible mechanisms of the antiobesity effects are discussed in terms of the composition of the bioactive potato peel compounds, which were determined using high-performance liquid chromatography. The results suggest that potato peels, a major peeling byproduct of potato processing used to prepare fries, chips, and potato flour, that showed exceptionally high antiobesity properties in fat mice, have the potential to serve as an antiobesity functional food.
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Affiliation(s)
- Salem Elkahoui
- Laboratory of Bioactive Substances , Center of Biotechnology of Borj Cédria , BP 901, 2050 Hammam-Lif , Tunisia
| | - Glenn E Bartley
- Healthy Processed Foods Research, Western Regional Research Center, Agricultural Research Service , United States Department of Agriculture , Albany , California 94710 , United States
| | - Wallace H Yokoyama
- Healthy Processed Foods Research, Western Regional Research Center, Agricultural Research Service , United States Department of Agriculture , Albany , California 94710 , United States
| | - Mendel Friedman
- Healthy Processed Foods Research, Western Regional Research Center, Agricultural Research Service , United States Department of Agriculture , Albany , California 94710 , United States
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24
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Karaboğa Arslan AK, Yerer MB. α-Chaconine and α-Solanine Inhibit RL95-2 Endometrium Cancer Cell Proliferation by Reducing Expression of Akt (Ser473) and ERα (Ser167). Nutrients 2018; 10:nu10060672. [PMID: 29799481 PMCID: PMC6024735 DOI: 10.3390/nu10060672] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Revised: 05/15/2018] [Accepted: 05/23/2018] [Indexed: 01/07/2023] Open
Abstract
The aim of this study is to investigate the potential inhibitory effect of α-chaconine and α-solanine on RL95-2 estrogen receptor (ER) positive human endometrial cancer cell line and to identify the effect of these glycoalkaloids on the Akt signaling and ERα. The cell proliferation profiles and the cytotoxicity studies were performed by Real-Time Cell Analyzer (xCELLigence) and compared with Sulphorhodamine B (SRB) assay. The effects of α-chaconine (2.5, 5, 10 µM), α-solanine (20, 30, 50 µM), API-1 (25 µM) and MPP (20 µM) effects on Akt (Ser473) and ERα (Ser167) expressions evaluated by Western blot and qPCR method. Their IC50 values were as α-chaconine (4.72 µM) < MPP (20.01 µM) < α-solanine (26.27 µM) < API-1 (56.67 µM). 10 μM α-chaconine and 20, 30 and 50 μM α-solanine were effective in decreasing p-Akt(Ser473)/Akt ratio compared to positive control API-1. When the p-ERα/ERα ratios were evaluated, it was observed that α-chaconine (2.5, 5, 10 μM) and α-solanine (50 μM) were as effective as the specific ERα inhibitor MPP in reducing the ratio of p-ERα/ERα compared to the control group. In conclusion, it has been shown that the proliferation of α-chaconine and α-solanine in human endometrial carcinoma cells reduces the expression and activity of the Akt and ERα signaling pathway.
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Affiliation(s)
| | - Mükerrem Betül Yerer
- Department of Pharmacology, Faculty of Pharmacy, Erciyes University, Kayseri 38039, Turkey.
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25
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Chaparro JM, Holm DG, Broeckling CD, Prenni JE, Heuberger AL. Metabolomics and Ionomics of Potato Tuber Reveals an Influence of Cultivar and Market Class on Human Nutrients and Bioactive Compounds. Front Nutr 2018; 5:36. [PMID: 29876353 PMCID: PMC5974217 DOI: 10.3389/fnut.2018.00036] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Accepted: 04/19/2018] [Indexed: 01/11/2023] Open
Abstract
Potato (Solanum tuberosum L.) is an important global food crop that contains phytochemicals with demonstrated effects on human health. Understanding sources of chemical variation of potato tuber can inform breeding for improved health attributes of the cooked food. Here, a comprehensive metabolomics (UPLC- and GC-MS) and ionomics (ICP-MS) analysis of raw and cooked potato tuber was performed on 60 unique potato genotypes that span 5 market classes including russet, red, yellow, chip, and specialty potatoes. The analyses detected 2,656 compounds that included known bioactives (43 compounds), nutrients (42), lipids (76), and 23 metals. Most nutrients and bioactives were partially degraded during cooking (44 out of 85; 52%), however genotypes with high quantities of bioactives remained highest in the cooked tuber. Chemical variation was influenced by genotype and market class. Specifically, ~53% of all detected compounds from cooked potato varied among market class and 40% varied by genotype. The most notable metabolite profiles were observed in yellow-flesh potato which had higher levels of carotenoids and specialty potatoes which had the higher levels of chlorogenic acid as compared to the other market classes. Variation in several molecules with known association to health was observed among market classes and included vitamins (e.g., pyridoxal, ~2-fold variation), bioactives (e.g., chlorogenic acid, ~40-fold variation), medicinals (e.g., kukoamines, ~6-fold variation), and minerals (e.g., calcium, iron, molybdenum, ~2-fold variation). Furthermore, more metabolite variation was observed within market class than among market class (e.g., α-tocopherol, ~1-fold variation among market class vs. ~3-fold variation within market class). Taken together, the analysis characterized significant metabolite and mineral variation in raw and cooked potato tuber, and support the potential to breed new cultivars for improved health traits.
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Affiliation(s)
- Jacqueline M. Chaparro
- Department of Horticulture and Landscape Architecture, Colorado State University, Fort Collins, CO, United States
- Proteomics and Metabolomics Facility, Colorado State University, Fort Collins, CO, United States
| | - David G. Holm
- Department of Horticulture and Landscape Architecture, Colorado State University, Fort Collins, CO, United States
| | - Corey D. Broeckling
- Department of Horticulture and Landscape Architecture, Colorado State University, Fort Collins, CO, United States
- Proteomics and Metabolomics Facility, Colorado State University, Fort Collins, CO, United States
| | - Jessica E. Prenni
- Department of Horticulture and Landscape Architecture, Colorado State University, Fort Collins, CO, United States
- Proteomics and Metabolomics Facility, Colorado State University, Fort Collins, CO, United States
| | - Adam L. Heuberger
- Department of Horticulture and Landscape Architecture, Colorado State University, Fort Collins, CO, United States
- Department of Soil and Crop Sciences, Colorado State University, Fort Collins, CO, United States
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26
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Burger T, Mokoka T, Fouché G, Steenkamp P, Steenkamp V, Cordier W. Solamargine, a bioactive steroidal alkaloid isolated from Solanum aculeastrum induces non-selective cytotoxicity and P-glycoprotein inhibition. Altern Ther Health Med 2018; 18:137. [PMID: 29720141 PMCID: PMC5930800 DOI: 10.1186/s12906-018-2208-7] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Accepted: 04/17/2018] [Indexed: 12/18/2022]
Abstract
Background Solanum aculeastrum fruits are used by some cancer sufferers as a form of alternative treatment. Scientific literature is scarce concerning its anticancer activity, and thus the aim of the study was to assess the in vitro anticancer and P-glycoprotein inhibitory potential of extracts of S. aculeastrum fruits. Furthermore, assessment of the combinational effect with doxorubicin was also done. Methods The crude extract was prepared by ultrasonic maceration. Liquid-liquid extraction yielded one aqueous and two organic fractions. Bioactive constituents were isolated from the aqueous fraction by means of column chromatography, solid phase extraction and preparative thin-layer chromatography. Confirmation of bioactive constituent identity was done by nuclear magnetic resonance and ultra-performance liquid chromatography mass spectrometry. The crude extract and fractions were assessed for cytotoxicity and P-glycoprotein inhibition in both cancerous and non-cancerous cell lines using the sulforhodamine B and rhodamine-123 assays, respectively. Results Both the crude extract and aqueous fraction was cytotoxic to all cell lines, with the SH-SY5Y neuroblastoma cell line being most susceptible to exposure (IC50 = 10.72 μg/mL [crude], 17.21 μg/mL [aqueous]). Dose-dependent P-glycoprotein inhibition was observed for the crude extract (5.9 to 18.9-fold at 100 μg/mL) and aqueous fraction (2.9 to 21.2 at 100 μg/mL). The steroidal alkaloids solamargine and solanine were identified. While solanine was not bioactive, solamargine displayed an IC50 of 15.62 μg/mL, and 9.1-fold P-glycoprotein inhibition at 100 μg/mL against the SH-SY5Y cell line. Additive effects were noted for combinations of doxorubicin against the SH-SY5Y cell line. Conclusions The crude extract and aqueous fraction displayed potent non-selective cytotoxicity and noteworthy P-glycoprotein inhibition. These effects were attributed to solamargine. P-glycoprotein inhibitory activity was only present at concentrations higher than those inducing cytotoxicity, and thus does not appear to be the likely mechanism for the enhancement of doxorubicin’s cytotoxicity. Preliminary results suggest that non-selective cytotoxicity may hinder drug development, however, further assessment of the mode of cell death is necessary to determine the route forward.
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Yi YJ, Jia XH, Wang JY, Chen JR, Wang H, Li YJ. Solanine induced apoptosis and increased chemosensitivity to Adriamycin in T-cell acute lymphoblastic leukemia cells. Oncol Lett 2018; 15:7383-7388. [PMID: 29731890 DOI: 10.3892/ol.2018.8229] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2015] [Accepted: 05/18/2017] [Indexed: 11/06/2022] Open
Abstract
Solanine is an alkaloid and is the main extract of the traditional Chinese herb, Solanum nigrum Linn. It has been reported that Solanine has anti-inflammatory and antitumor properties. The present study aimed to investigate the antitumor effect of Solanine in Jurkat cells and demonstrate the molecular mechanism of antitumor activity of Solanine. A Cell Counting Kit-8 assay demonstrated that Solanine inhibited the proliferation of Jurkat cells in a dose-and time-dependent manner. Cell apoptosis was measured by flow cytometry. Flow cytometry revealed that Solanine induced apoptosis in a dose-dependent manner in Jurkat cells. Reverse transcription-quantitative polymerase chain reaction demonstrated that Solanine modulated the mRNA levels of B-cell lymphoma-2 (Bcl-2) and Bcl-2-associated X protein (Bax). Additionally, Bcl-2 and Bax expression was measured using western blot analysis. Western blot analysis revealed a significant increase in the expression of Bax and decrease in the expression of Bcl-2. Solanine increased the chemosensitivity of Jurkat cells to Adriamycin. In summary, the present results indicated that the antitumor activity of Solanine was associated with inhibition of cell proliferation, induction of apoptosis and increasing cytotoxicity of Adriamycin. Therefore, Solanine may have potential as a novel agent for the treatment of acute lymphocytic leukemia.
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Affiliation(s)
- Ying-Jie Yi
- Department of Pediatrics, The Affiliated Hospital of Binzhou Medical University, Binzhou, Shandong 256603, P.R. China
| | - Xiu-Hong Jia
- Department of Pediatrics, The Affiliated Hospital of Binzhou Medical University, Binzhou, Shandong 256603, P.R. China
| | - Jian-Yong Wang
- Department of Pediatrics, The Affiliated Hospital of Binzhou Medical University, Binzhou, Shandong 256603, P.R. China
| | - Jie-Ru Chen
- Department of Pediatrics, The Affiliated Hospital of Binzhou Medical University, Binzhou, Shandong 256603, P.R. China
| | - Hong Wang
- Department of Pediatrics, The Affiliated Hospital of Binzhou Medical University, Binzhou, Shandong 256603, P.R. China
| | - You-Jie Li
- Department of Biochemistry and Molecular Biology, Key Laboratory of Tumour Molecular Biology, Binzhou Medical University, Yantai, Shandong 264003, P.R. China
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28
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Friedman M, Kozukue N, Kim HJ, Choi SH, Mizuno M. Glycoalkaloid, phenolic, and flavonoid content and antioxidative activities of conventional nonorganic and organic potato peel powders from commercial gold, red, and Russet potatoes. J Food Compost Anal 2017. [DOI: 10.1016/j.jfca.2017.04.019] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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29
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Dahlin P, Müller MC, Ekengren S, McKee LS, Bulone V. The Impact of Steroidal Glycoalkaloids on the Physiology of Phytophthora infestans, the Causative Agent of Potato Late Blight. MOLECULAR PLANT-MICROBE INTERACTIONS : MPMI 2017; 30:531-542. [PMID: 28510502 DOI: 10.1094/mpmi-09-16-0186-r] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Steroidal glycoalkaloids (SGAs) are plant secondary metabolites known to be toxic to animals and humans and that have putative roles in defense against pests. The proposed mechanisms of SGA toxicity are sterol-mediated disruption of membranes and inhibition of cholinesterase activity in neurons. It has been suggested that phytopathogenic microorganisms can overcome SGA toxicity by enzymatic deglycosylation of SGAs. Here, we have explored SGA-mediated toxicity toward the invasive oomycete Phytophthora infestans, the causative agent of the late blight disease in potato and tomato, as well as the potential for SGA deglycosylation by this species. Our growth studies indicate that solanidine, the nonglycosylated precursor of the potato SGAs α-chaconine and α-solanine, has a greater physiological impact than its glycosylated forms. All of these compounds were incorporated into the mycelium, but only solanidine could strongly inhibit the growth of P. infestans in liquid culture. Genes encoding several glycoside hydrolases with potential activity on SGAs were identified in the genome of P. infestans and were shown to be expressed. However, we found no indication that deglycosylation of SGAs takes place. We present additional evidence for apparent host-specific adaptation to potato SGAs and assess all results in terms of future pathogen management strategies.
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Affiliation(s)
- Paul Dahlin
- 1 Division of Glycoscience, School of Biotechnology, Royal Institute of Technology (KTH), AlbaNova University Centre, 10691 Stockholm, Sweden
- 2 Department of Ecology, Environment and Plant Sciences, Stockholm University, 10691 Stockholm, Sweden
| | - Marion C Müller
- 1 Division of Glycoscience, School of Biotechnology, Royal Institute of Technology (KTH), AlbaNova University Centre, 10691 Stockholm, Sweden
- 2 Department of Ecology, Environment and Plant Sciences, Stockholm University, 10691 Stockholm, Sweden
| | - Sophia Ekengren
- 1 Division of Glycoscience, School of Biotechnology, Royal Institute of Technology (KTH), AlbaNova University Centre, 10691 Stockholm, Sweden
- 2 Department of Ecology, Environment and Plant Sciences, Stockholm University, 10691 Stockholm, Sweden
| | - Lauren S McKee
- 1 Division of Glycoscience, School of Biotechnology, Royal Institute of Technology (KTH), AlbaNova University Centre, 10691 Stockholm, Sweden
- 3 Wallenberg Wood Science Centre, Division of Glycoscience, School of Biotechnology, Royal Institute of Technology (KTH), AlbaNova University Centre, 106 91 Stockholm, Sweden; and
| | - Vincent Bulone
- 1 Division of Glycoscience, School of Biotechnology, Royal Institute of Technology (KTH), AlbaNova University Centre, 10691 Stockholm, Sweden
- 4 ARC Centre of Excellence in Plant Cell Walls and School of Agriculture, Food and Wine, The University of Adelaide, Waite Campus, Urrbrae, SA 5064 Australia
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30
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Yelken BÖ, Balcı T, Süslüer SY, Kayabaşı Ç, Avcı ÇB, Kırmızıbayrak PB, Gündüz C. The effect of tomatine on metastasis related matrix metalloproteinase (MMP) activities in breast cancer cell model. Gene 2017; 627:408-411. [PMID: 28669925 DOI: 10.1016/j.gene.2017.06.054] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Revised: 06/16/2017] [Accepted: 06/28/2017] [Indexed: 11/17/2022]
Abstract
Breast cancer is one of the most common malignancies in women and metastasis is the cause of morbidity and mortality in patients. In the development of metastasis, the matrix metalloproteinase (MMP) family has a very important role in tumor development. MMP-2 and MMP-9 work together for extracellular matrix (ECM) cleavage to increase migration. Tomatine is a secondary metabolite that has a natural defense role against plants, fungi, viruses and bacteria that are synthesized from tomato. In additıon, tomatine is also known that it breaks down the cell membrane and is a strong inhibitor in human cancer cells. In this study, it was aimed to evaluate the effect of tomatine on cytotoxicity, apoptosis and matrix metalloproteinase inhibition in MCF-7 cell lines. Human breast cancer cell line (MCF-7) was used as a cell line. In MCF-7 cells, the IC50 dose of tomatine was determined to be 7.07μM. According to the control cells, apoptosis increased 3.4 fold in 48thh. Activation of MMP-2, MMP-9 and MMP-9\NGAL has been shown to decrease significantly in cells treated with tomatine by gelatin zymography compared to the control. As a result, matrix metalloproteinase activity and cell proliferation were suppressed by tomatine and this may provide support in treatment methods.
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Affiliation(s)
- Besra Özmen Yelken
- Faculty of Medicine, Department of Medical Biology, Ege University, Bornova, Izmir, Turkey
| | - Tuğçe Balcı
- Vocational School of Health Services, Medical Biology Department, Near East University, Cyprus.
| | - Sunde Yılmaz Süslüer
- Faculty of Medicine, Department of Medical Biology, Ege University, Bornova, Izmir, Turkey
| | - Çağla Kayabaşı
- Faculty of Medicine, Department of Medical Biology, Ege University, Bornova, Izmir, Turkey
| | - Çığır Biray Avcı
- Faculty of Medicine, Department of Medical Biology, Ege University, Bornova, Izmir, Turkey
| | | | - Cumhur Gündüz
- Faculty of Medicine, Department of Medical Biology, Ege University, Bornova, Izmir, Turkey
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31
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Visvanathan R, Jayathilake C, Chaminda Jayawardana B, Liyanage R. Health-beneficial properties of potato and compounds of interest. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2016; 96:4850-4860. [PMID: 27301296 DOI: 10.1002/jsfa.7848] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2015] [Revised: 10/28/2015] [Accepted: 06/06/2016] [Indexed: 06/06/2023]
Abstract
Potatoes have shown promising health-promoting properties in human cell culture, experimental animal and human clinical studies, including antioxidant, hypocholesterolemic, anti-inflammatory, antiobesity, anticancer and antidiabetic effects. Compounds present such as phenolics, fiber, starch and proteins as well as compounds considered antinutritional such as glycoalkaloids, lectins and proteinase inhibitors are believed to contribute to the health benefits of potatoes. However, epidemiological studies exploring the role of potatoes in human health have been inconclusive. Some studies support a protective effect of potato consumption in weight management and diabetes, while other studies demonstrate no effect and a few suggest a negative effect. As there are many biological activities attributed to the compounds present in potato, some of which could be beneficial or detrimental depending on specific circumstances, a long-term study investigating the association between potato consumption and diabetes, obesity, cardiovascular disease and cancer while controlling for fat intake is needed. © 2016 Society of Chemical Industry.
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Affiliation(s)
- Rizliya Visvanathan
- Division of Nutritional Biochemistry, National Institute of Fundamental Studies, Kandy, Sri Lanka
| | - Chathuni Jayathilake
- Division of Nutritional Biochemistry, National Institute of Fundamental Studies, Kandy, Sri Lanka
| | | | - Ruvini Liyanage
- Division of Nutritional Biochemistry, National Institute of Fundamental Studies, Kandy, Sri Lanka.
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32
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Bachran C, Sutherland M, Heisler I, Hebestreit P, Melzig MF, Fuchs H. The Saponin-Mediated Enhanced Uptake of Targeted Saporin-Based Drugs is Strongly Dependent on the Saponin Structure. Exp Biol Med (Maywood) 2016; 231:412-20. [PMID: 16565437 DOI: 10.1177/153537020623100407] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Saponins are a group of plant glycosides consisting of a steroid or triterpenoid aglycone to which one or more sugar chains are attached. They exhibit cell membrane–permeabilizing properties and, thus, have been investigated for their therapeutic potential. Recently, at a nonpermeabilizing concentration saponinum album from Gypsophila paniculata L. has been described to enhance the cytotoxicity of a chimeric toxin in a cell culture model. To elucidate whether this enhancing effect is also mediated by other saponins, we analyzed the ability of seven different saponins to enhance the cytotoxicity of a targeted chimeric toxin. The chimeric toxin is composed of saporin, a plant ribosome-inactivating toxin, a cleavable adapter, and human epidermal growth factor (EGF). Cytotoxicity on EGF receptor (EGFR)-bearing cells was analyzed both alone and after combined application of saponin and chimeric toxin. Only two of the tested saponins, quillajasaponin and saponinum album, enhanced cytotoxicity by more than 1000-fold, whereas the enhancement factors of the other saponins were only approximately 10-fold. In contrast to saponinum album, quillajasaponin enhanced the cytotoxicity both on control cells lacking EGFR and on target cells, indicating that, in this case, the enhancement is not target cell receptor specific. This is also the case for some of the saponins with low enhancement factors. Saponinum album resulted in a more than 13,600-fold receptor-specific enhancement, decreasing the 50% inhibitory concentration (IC50) from 2.4 nM to 0.18 pM, which renders it the best option to promote saporin-3-based drug uptake while retaining specificity for the EGFR.
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Affiliation(s)
- Christopher Bachran
- Institut für Klinische Chemie und Pathobiochemie, Charité-Universitätsmedizin Berlin, Campus Benjamin Franklin, Hindenburgdamm 30, D-12200 Berlin, Germany.
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33
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Pan B, Zhong W, Deng Z, Lai C, Chu J, Jiao G, Liu J, Zhou Q. Inhibition of prostate cancer growth by solanine requires the suppression of cell cycle proteins and the activation of ROS/P38 signaling pathway. Cancer Med 2016; 5:3214-3222. [PMID: 27726305 PMCID: PMC5119977 DOI: 10.1002/cam4.916] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2016] [Revised: 08/21/2016] [Accepted: 08/23/2016] [Indexed: 12/20/2022] Open
Abstract
Solanine, a naturally steroidal glycoalkaloid in nightshade (Solanum nigrum Linn.), can inhibit proliferation and induce apoptosis of tumor cells. However, the mechanism of solanine-suppressing prostate cancer cell growth remains to be elucidated. This study investigates the inhibition mechanism of solanine on cancer development in vivo and in cultured human prostate cancer cell DU145 in vitro. Results show that solanine injection significantly suppresses the tumor cell growth in xenograft athymic nude mice. Solanine regulates the protein levels of cell cycle proteins, including Cyclin D1, Cyclin E1, CDK2, CDK4, CDK6, and P21 in vivo and in vitro. Also, in cultured DU145 cell, solanine significantly inhibits cell growth. Moreover, the administration of NAC, an active oxygen scavenger, markedly reduces solanine-induced cell death. Blockade of P38 MAPK kinase cannot suppress reactive oxygen species (ROS), but can suppress solanine-induced cell apoptosis. Also, inhibition of ROS by NAC inactivates P38 pathway. Taken together, the data suggest that inhibition of prostate cancer growth by solanine may be through blocking the expression of cell cycle proteins and inducing apoptosis via ROS and activation of P38 pathway. These findings indicate an attractive therapeutic potential of solanine for suppression of prostate cancer.
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Affiliation(s)
- Bin Pan
- Department of Urology, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Weifeng Zhong
- Sun Yat-sen Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Guangzhou, China
| | - Zhihai Deng
- Department of Urology, Gao Zhou People's Hospital, Gaozhou, China
| | - Caiyong Lai
- Department of Urology, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Jing Chu
- Department of Urology, Zhuhai People's Hospital, Zhuhai, China
| | - Genlong Jiao
- Department of Surgery, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Junfeng Liu
- Department of Urology, Inner Mongolia People's Hospital, Hohhot, China
| | - Qizhao Zhou
- Department of Urology, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China
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34
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Li D, Zhao YL, Qin XJ, Liu L, Yang XW, Chen YY, Wang B, Wei X, Liu YP, Luo XD. Spiralosides A-C, Three New C27-Steroidal Glycoalkaloids from the Fruits of Solanum spirale. NATURAL PRODUCTS AND BIOPROSPECTING 2016; 6:225-31. [PMID: 27318495 PMCID: PMC4940254 DOI: 10.1007/s13659-016-0103-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2016] [Accepted: 06/02/2016] [Indexed: 05/02/2023]
Abstract
Three new C27-steroidal glycoalkaloids, spiralosides A-C (1-3), were obtained from the total alkaloids of Solanum spirale by chromatographic methods. On the basis of spectroscopic evidence, spiralosides A-C were elucidated as (22R,25S)-22,26-epiminocholest-5-ene-3β,16α-diol-N-acetyl-3-O-α-L-rhamnopyranosyl-(1→4)-β-D-glucopyranosyl (1), (22R,25S)-22,26-epiminocholest-5-ene-3β,16α-diol-N-acetyl-3-O-β-D-glucopyranosyl (2), (22R,25S)-22,26-epiminocholest-3β,16α-diol-N-acetyl-3-O-β-D-glucopyranosyl (3), respectively. The total alkaloids of S. spirale have been screened for their antitussive and expectorant effects in intact animal model.
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Affiliation(s)
- Dan Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China
- University of Chinese Academy of Sciences, Beijing, 100039, China
| | - Yun-Li Zhao
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China
| | - Xu-Jie Qin
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China
| | - Lu Liu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China
- University of Chinese Academy of Sciences, Beijing, 100039, China
| | - Xing-Wei Yang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China
| | - Ying-Ying Chen
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China
- University of Chinese Academy of Sciences, Beijing, 100039, China
| | - Bei Wang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China
- University of Chinese Academy of Sciences, Beijing, 100039, China
| | - Xin Wei
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China
- University of Chinese Academy of Sciences, Beijing, 100039, China
| | - Ya-Ping Liu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China.
| | - Xiao-Dong Luo
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China.
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35
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Wang L, Sun QQ, Zhang SJ, Du YW, Wang YY, Zang WQ, Chen XN, Zhao GQ. Inhibitory effect of α-solanine on esophageal carcinoma in vitro. Exp Ther Med 2016; 12:1525-1530. [PMID: 27588073 DOI: 10.3892/etm.2016.3500] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2015] [Accepted: 06/07/2016] [Indexed: 12/20/2022] Open
Abstract
α-solanine, a bioactive component and one of the major steroidal glycoalkaloids in potatoes, has been observed to inhibit growth and induce apoptosis in cancer cells. However, the antitumor efficacy of α-solanine on esophageal carcinoma has yet to be fully elucidated. In the present study, the antitumor efficacy of α-solanine against human esophageal carcinoma cells was investigated. It was determined that α-solanine inhibited the growth and proliferation of human esophageal EC9706 and Eca109 cancer cells in a dose-dependent manner, as well as the cell migration and invasion. In addition, the apoptotic rate was increased in the cancer cells treated with α-solanine in a dose-dependent manner, compared with that of the control group (P<0.05). The expression levels of tumor metastasis-related proteins, including matrix metalloproteinase (MMP)-2 and MMP-9, were reduced in the cells treated with α-solanine, as compared with the control group. Conversely, significantly higher expression levels of E-cadherin were detected in the α-solanine-treated groups, as compared with the control group (P<0.05). Therefore, the current results provide a novel insight into the anti-tumor mechanism of α-solanine, and suggest that α-solanine is a potential agent for the prevention and treatment of esophageal carcinoma.
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Affiliation(s)
- Lei Wang
- Department of Emergency, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, P.R. China
| | - Qian-Qian Sun
- College of Basic Medical Sciences, Zhengzhou University, Zhengzhou, Henan 450001, P.R. China
| | - Shi-Jie Zhang
- Department of Clinical Laboratory, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, P.R. China
| | - Yu-Wen Du
- College of Basic Medical Sciences, Zhengzhou University, Zhengzhou, Henan 450001, P.R. China
| | - Yuan-Yuan Wang
- College of Basic Medical Sciences, Zhengzhou University, Zhengzhou, Henan 450001, P.R. China
| | - Wen-Qiao Zang
- College of Basic Medical Sciences, Zhengzhou University, Zhengzhou, Henan 450001, P.R. China
| | - Xiao-Nan Chen
- College of Basic Medical Sciences, Zhengzhou University, Zhengzhou, Henan 450001, P.R. China
| | - Guo-Qiang Zhao
- College of Basic Medical Sciences, Zhengzhou University, Zhengzhou, Henan 450001, P.R. China
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36
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Choi SH, Kozukue N, Kim HJ, Friedman M. Analysis of protein amino acids, non-protein amino acids and metabolites, dietary protein, glucose, fructose, sucrose, phenolic, and flavonoid content and antioxidative properties of potato tubers, peels, and cortexes (pulps). J Food Compost Anal 2016. [DOI: 10.1016/j.jfca.2016.05.011] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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37
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Akyol H, Riciputi Y, Capanoglu E, Caboni MF, Verardo V. Phenolic Compounds in the Potato and Its Byproducts: An Overview. Int J Mol Sci 2016; 17:E835. [PMID: 27240356 PMCID: PMC4926369 DOI: 10.3390/ijms17060835] [Citation(s) in RCA: 130] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2016] [Revised: 05/17/2016] [Accepted: 05/24/2016] [Indexed: 01/03/2023] Open
Abstract
The potato (Solanum tuberosum L.) is a tuber that is largely used for food and is a source of different bioactive compounds such as starch, dietary fiber, amino acids, minerals, vitamins, and phenolic compounds. Phenolic compounds are synthetized by the potato plant as a protection response from bacteria, fungi, viruses, and insects. Several works showed that these potato compounds exhibited health-promoting effects in humans. However, the use of the potato in the food industry submits this vegetable to different processes that can alter the phenolic content. Moreover, many of these compounds with high bioactivity are located in the potato's skin, and so are eliminated as waste. In this review the most recent articles dealing with phenolic compounds in the potato and potato byproducts, along with the effects of harvesting, post-harvest, and technological processes, have been reviewed. Briefly, the phenolic composition, main extraction, and determination methods have been described. In addition, the "alternative" food uses and healthy properties of potato phenolic compounds have been addressed.
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Affiliation(s)
- Hazal Akyol
- Department of Food Engineering, Faculty of Chemical and Metallurgical Engineering, Istanbul Technical University, Ayazağa Campus, Maslak, Istanbul 34469, Turkey.
| | - Ylenia Riciputi
- Department of Agro-Food Sciences and Technologies, Alma Mater Studiorum-University of Bologna, Piazza Goidanich 60, Cesena (FC) I-47521, Italy.
| | - Esra Capanoglu
- Department of Food Engineering, Faculty of Chemical and Metallurgical Engineering, Istanbul Technical University, Ayazağa Campus, Maslak, Istanbul 34469, Turkey.
| | - Maria Fiorenza Caboni
- Department of Agro-Food Sciences and Technologies, Alma Mater Studiorum-University of Bologna, Piazza Goidanich 60, Cesena (FC) I-47521, Italy.
- Inter-Departmental Centre for Agri-Food Industrial Research (CIRI Agroalimentare), University of Bologna, Piazza Goidanich 60, Cesena (FC) I-47521, Italy.
| | - Vito Verardo
- Department of Chemistry and Physics (Analytical Chemistry Area) University of Almería, Carretera de Sacramento s/n Almería E-04120, Spain.
- Research Centre for Agricultural and Food Biotechnology (BITAL), Agrifood Campus of International Excellence, ceiA3, University of Almería, Carretera de Sacramento s/n Almería E-04120, Spain.
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38
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Shin JS, Lee KG, Lee HH, Lee HJ, An HJ, Nam JH, Jang DS, Lee KT. α-Solanine Isolated FromSolanum TuberosumL. cv Jayoung Abrogates LPS-Induced Inflammatory Responses Via NF-κB Inactivation in RAW 264.7 Macrophages and Endotoxin-Induced Shock Model in Mice. J Cell Biochem 2016; 117:2327-39. [DOI: 10.1002/jcb.25530] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2015] [Accepted: 02/29/2016] [Indexed: 12/29/2022]
Affiliation(s)
- Ji-Sun Shin
- Department of Pharmaceutical Biochemistry; Kyung Hee University; Seoul Republic of Korea
- Reactive Oxygen Species Medical Research Center; School of Medicine; Kyung Hee University; Republic of Korea
| | - Kyoung-Goo Lee
- Department of Pharmaceutical Biochemistry; Kyung Hee University; Seoul Republic of Korea
| | - Hwi-Ho Lee
- Department of Pharmaceutical Biochemistry; Kyung Hee University; Seoul Republic of Korea
- Department of Life and Nanopharmaceutical Science; Kyung Hee University; Seoul Republic of Korea
| | - Hae Jun Lee
- Department of Pharmaceutical Biochemistry; Kyung Hee University; Seoul Republic of Korea
- Department of Life and Nanopharmaceutical Science; Kyung Hee University; Seoul Republic of Korea
| | - Hyo-Jin An
- Department of Pharmacology; College of Oriental Medicine; Sangji University; Wonju-si Gangwon-do 220-702 Republic of Korea
| | - Jung-Hwan Nam
- Highland Agriculture Research Center; NICS, RDA; Pyeongchang 232-955 Republic of Korea
| | - Dae Sik Jang
- Department of Life and Nanopharmaceutical Science; Kyung Hee University; Seoul Republic of Korea
| | - Kyung-Tae Lee
- Department of Pharmaceutical Biochemistry; Kyung Hee University; Seoul Republic of Korea
- Department of Life and Nanopharmaceutical Science; Kyung Hee University; Seoul Republic of Korea
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39
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Zhou Y, Li Y, Zhou T, Zheng J, Li S, Li HB. Dietary Natural Products for Prevention and Treatment of Liver Cancer. Nutrients 2016; 8:156. [PMID: 26978396 PMCID: PMC4808884 DOI: 10.3390/nu8030156] [Citation(s) in RCA: 151] [Impact Index Per Article: 18.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2016] [Revised: 02/22/2016] [Accepted: 03/01/2016] [Indexed: 02/06/2023] Open
Abstract
Liver cancer is the most common malignancy of the digestive system with high death rate. Accumulating evidences suggests that many dietary natural products are potential sources for prevention and treatment of liver cancer, such as grapes, black currant, plum, pomegranate, cruciferous vegetables, French beans, tomatoes, asparagus, garlic, turmeric, ginger, soy, rice bran, and some edible macro-fungi. These dietary natural products and their active components could affect the development and progression of liver cancer in various ways, such as inhibiting tumor cell growth and metastasis, protecting against liver carcinogens, immunomodulating and enhancing effects of chemotherapeutic drugs. This review summarizes the potential prevention and treatment activities of dietary natural products and their major bioactive constituents on liver cancer, and discusses possible mechanisms of action.
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Affiliation(s)
- Yue Zhou
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-Sen University, Guangzhou 510080, China.
| | - Ya Li
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-Sen University, Guangzhou 510080, China.
| | - Tong Zhou
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-Sen University, Guangzhou 510080, China.
| | - Jie Zheng
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-Sen University, Guangzhou 510080, China.
| | - Sha Li
- School of Chinese Medicine, The University of Hong Kong, Hong Kong, China.
| | - Hua-Bin Li
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-Sen University, Guangzhou 510080, China.
- South China Sea Bioresource Exploitation and Utilization Collaborative Innovation Center, Sun Yat-Sen University, Guangzhou 510006, China.
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40
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Zhang F, Yang R, Zhang G, Cheng R, Bai Y, Zhao H, Lu X, Li H, Chen S, Li J, Wu S, Li P, Chen X, Sun Q, Zhao G. Anticancer function of α-solanine in lung adenocarcinoma cells by inducing microRNA-138 expression. Tumour Biol 2015; 37:6437-46. [PMID: 26631041 DOI: 10.1007/s13277-015-4528-2] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2015] [Accepted: 11/26/2015] [Indexed: 11/29/2022] Open
Abstract
Currently, lung cancer is still a main cause of malignancy-associated death worldwide. Even though various methods for prevention and treatment of lung cancer have been improved in recent decades, the 5-year survival rate has remained very low. Insights into the anticancer function of small-molecule anticancer compounds have opened our visual field about cancer therapy. α-Solanine has been well studied for its antitumor properties, but its effect in lung cancer and associated molecular mechanisms have not yet been evaluated. To explore the anticancer function of α-solanine, we performed an MTT assay, Transwell arrays, colony-forming survival assay, quantitative reverse transcription PCR (qRT-PCR), Western blotting, and dual luciferase reporter assays in A549 and H1299 cells. We found that α-solanine not only inhibited cell migration and invasion ability but also enhanced the chemosensitivity and radiosensitivity of A549 and H1299 cells. Moreover, we discovered that α-solanine could affect the expression of miR-138 and focal adhesion kinase (FAK), both of which were also found to affect the chemosensitivity and radiosensitivity of A549 and H1299 cells. In conclusion, α-solanine could affect miR-138 and FAK expression to restrict cell migration and invasion and enhance the chemosensitivity and radiosensitivity of A549 and H1299 cells. The α-solanine/miR-138/FAK cascade can probably be a potential therapy target against lung adenocarcinoma.
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Affiliation(s)
- Furui Zhang
- Department of Respiratory Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Rui Yang
- Department of Respiratory Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Guojun Zhang
- Department of Respiratory Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China.
| | - Ruirui Cheng
- Department of Respiratory Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Yong Bai
- Department of Respiratory Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Huasi Zhao
- Department of Respiratory Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Xinhua Lu
- Department of Respiratory Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Hui Li
- Department of Respiratory Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Shanshan Chen
- Department of Respiratory Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Juan Li
- Department of Respiratory Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Shujun Wu
- Department of Respiratory Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Ping Li
- Department of Respiratory Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Xiaonan Chen
- Department of Microbiology and Immunology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, 450001, China
| | - Qianqian Sun
- Department of Microbiology and Immunology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, 450001, China
| | - Guoqiang Zhao
- Department of Microbiology and Immunology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, 450001, China.
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41
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Total Phenolic, Flavonoid, Tomatine, and Tomatidine Contents and Antioxidant and Antimicrobial Activities of Extracts of Tomato Plant. Int J Anal Chem 2015; 2015:284071. [PMID: 26609308 PMCID: PMC4644540 DOI: 10.1155/2015/284071] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2015] [Revised: 08/21/2015] [Accepted: 10/12/2015] [Indexed: 12/21/2022] Open
Abstract
The purpose of this study was to evaluate the antioxidant and antimicrobial properties of extracts of different fractions of two tomato plant cultivars. The stems, roots, leaves, and whole-plant fractions were evaluated. Tomatine and tomatidine were identified by HPLC-DAD. The leaf extracts from the two varieties showed the highest flavonoids, chlorophyll, carotenoids, and total phenolics contents and the highest antioxidant activity determined by DPPH, ABTS, and ORAC. A positive correlation was observed between the antioxidant capacities of the extracts and the total phenolic, flavonoid, and chlorophyll contents. The Pitenza variety extracts inhibited the growth of pathogens such as E. coli O157:H7, Salmonella Typhimurium, Staphylococcus aureus, and Listeria ivanovii, yielding inhibition halos of 8.0 to 12.9 mm in diameter and MIC values of 12.5 to 3.125 mg/mL. These results suggest that tomato plant shows well potential as sources of various bioactive compounds, antioxidants, and antimicrobials.
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42
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Hasanain M, Bhattacharjee A, Pandey P, Ashraf R, Singh N, Sharma S, Vishwakarma AL, Datta D, Mitra K, Sarkar J. α-Solanine induces ROS-mediated autophagy through activation of endoplasmic reticulum stress and inhibition of Akt/mTOR pathway. Cell Death Dis 2015; 6:e1860. [PMID: 26313911 PMCID: PMC4558510 DOI: 10.1038/cddis.2015.219] [Citation(s) in RCA: 90] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2015] [Revised: 06/09/2015] [Accepted: 06/19/2015] [Indexed: 12/21/2022]
Abstract
α-Solanine is a glycoalkaloid found in species of the nightshade family including potato. It was primarily reported to have toxic effects in humans. However, there is a growing body of literature demonstrating in vitro and in vivo anticancer activity of α-solanine. Most of these studies have shown activation of apoptosis as the underlying mechanism in antitumor activity of α-solanine. In this study, we report α-solanine as a potential inducer of autophagy, which may act synergistically or in parallel with apoptosis to exert its cytotoxic effect. Induction of autophagy was demonstrated by several assays including electron microscopy, immunoblotting of autophagy markers and immunofluorescence for LC3 (microtubule-associated protein 1 (MAP1) light chain-3) puncta. α-Solanine-induced autophagic flux was demonstrated by additionally enhanced – turnover of LC3-II and – accumulation of LC3-specific puncta after co-incubation of cells with either of the autophagolysosome inhibitors – chloroquine and – bafilomycin A1. We also demonstrated α-solanine-induced oxidative damage in regulating autophagy where pre-incubation of cells with reactive oxygen species (ROS) scavenger resulted in suppression of CM-H2DCFDA (5 (and 6)-chloromethyl-2′,7′-dichlorodihydrofluorescein diacetate acetyl ester) fluorescence as well as decrease in LC3-II turnover. α-Solanine treatment caused an increase in the expression of endoplasmic reticulum (ER) stress proteins (BiP, activating transcription factor 6 (ATF6), X-box-binding protein 1, PERK, inositol-requiring transmembrane kinase/endonuclease 1, ATF4 and CCAAT-enhancer-binding protein (C/EBP)-homologous protein) suggesting activation of unfolded protein response pathway. Moreover, we found downregulation of phosphorylated Akt (Thr308 and Ser473), mammalian target of rapamycin (mTOR; Ser2448 and Ser2481) and 4E-BP1 (Thr37/46) by α-solanine implying suppression of the Akt/mTOR pathway. Collectively, our results signify that α-solanine induces autophagy to exert anti-proliferative activity by triggering ER stress and inhibiting Akt/mTOR signaling pathway.
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Affiliation(s)
- M Hasanain
- Biochemistry Division, CSIR-Central Drug Research Institute, Lucknow, India
| | - A Bhattacharjee
- Electron Microscopy Unit, CSIR-Central Drug Research Institute, Lucknow, India
| | - P Pandey
- Biochemistry Division, CSIR-Central Drug Research Institute, Lucknow, India
| | - R Ashraf
- Biochemistry Division, CSIR-Central Drug Research Institute, Lucknow, India
| | - N Singh
- Biochemistry Division, CSIR-Central Drug Research Institute, Lucknow, India
| | - S Sharma
- Biochemistry Division, CSIR-Central Drug Research Institute, Lucknow, India
| | - A L Vishwakarma
- Sophisticated Analytical Instruments Facilities, CSIR-Central Drug Research Institute, Lucknow, India
| | - D Datta
- Biochemistry Division, CSIR-Central Drug Research Institute, Lucknow, India.,Academy of Scientific and Innovative Research, Chennai, India
| | - K Mitra
- Electron Microscopy Unit, CSIR-Central Drug Research Institute, Lucknow, India.,Academy of Scientific and Innovative Research, Chennai, India
| | - J Sarkar
- Biochemistry Division, CSIR-Central Drug Research Institute, Lucknow, India.,Academy of Scientific and Innovative Research, Chennai, India
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43
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Manjunath KS, Bhandage S, Kamat S. 'Potato peel dressing': a novel adjunctive in the management of necrotizing fasciitis. J Maxillofac Oral Surg 2015; 14:352-4. [PMID: 25848140 DOI: 10.1007/s12663-013-0590-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2013] [Accepted: 09/16/2013] [Indexed: 10/26/2022] Open
Abstract
Management of necrotizing fasciitis, a rare and potentially fatal, polymicrobial disease comprises of aggressive debridement, intravenous antibiotics and application of various adjunctives. So far adjunctives like hyperbaric oxygen therapy, intravenous immunoglobulins, vacuum assisted or foam dressing, and guided tissue regeneration with amniotic dressing have been put to use. Each of these adjunctives has faced criticism for their shortcomings. Potato peel has been used as a dressing for chronic wounds but there is no literature available on its application over wounds afflicted with necrotizing fasciitis. Owing to various medicinal properties of potato peel and its use as a dressing in other medical conditions, same was used as an adjunctive in the present case. Here we present a case of cervical necrotizing fasciitis of dentogenous origin, treated by mainstay surgical treatment with debridement, drainage in combination with broad spectrum antibiotics and a novel adjunctive, 'potato peel dressing', which has shown promising results.
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Affiliation(s)
- K S Manjunath
- Department of Oral and Maxillofacial Surgery, Sri Hasanamba Dental College and Hospital, Hassan, 573201 Karnataka India
| | - Supriya Bhandage
- Department of Oral and Maxillofacial Surgery, Sri Hasanamba Dental College and Hospital, Hassan, 573201 Karnataka India
| | - Shishir Kamat
- Department of Oral and Maxillofacial Surgery, Sri Hasanamba Dental College and Hospital, Hassan, 573201 Karnataka India
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44
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Friedman M. Chemistry and anticarcinogenic mechanisms of glycoalkaloids produced by eggplants, potatoes, and tomatoes. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2015; 63:3323-37. [PMID: 25821990 DOI: 10.1021/acs.jafc.5b00818] [Citation(s) in RCA: 106] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Inhibition of cancer can occur via apoptosis, a genetically directed process of cell self-destruction that involves numerous biomarkers and signaling pathways. Glycoalkaloids are nitrogen-containing secondary plant metabolites found in numerous Solanaceous plants including eggplants, potatoes, and tomatoes. Exposure of cancer cells to glycoalkaloids produced by eggplants (α-solamargine and α-solasonine), potatoes (α-chaconine and α-solanine), and tomatoes (α-tomatine) or their hydrolysis products (mono-, di-, and trisaccharide derivatives and the aglycones solasodine, solanidine, and tomatidine) inhibits the growth of the cells in culture (in vitro) as well as tumor growth in vivo. This overview comprehensively surveys and consolidates worldwide efforts to define the following aspects of these natural compounds: (a) their prevalence in the three foods; (b) their chemistry and structure-activity relationships; (c) the reported factors (biomarkers, signaling pathways) associated with apoptosis of bone, breast, cervical, colon, gastric, glioblastoma, leukemia, liver, lung, lymphoma, melanoma, pancreas, prostate, and squamous cell carcinoma cell lines in vitro and the in vivo inhibition of tumor formation and growth in fish and mice and in human skin cancers; and (d) future research needs. The described results may make it possible to better relate the structures of the active compounds to their health-promoting function, individually, in combination, and in food, and allow the consumer to select glycoalkaloid-containing food with the optimal content of nontoxic beneficial compounds. The described findings are expected to be a valuable record and resource for further investigation of the health benefits of food-related natural compounds.
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Affiliation(s)
- Mendel Friedman
- Western Regional Research Center, Agricultural Research Service, United States Department Agriculture, Albany, California 94710, United States
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45
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Jiang QW, Chen MW, Cheng KJ, Yu PZ, Wei X, Shi Z. Therapeutic Potential of Steroidal Alkaloids in Cancer and Other Diseases. Med Res Rev 2015; 36:119-43. [PMID: 25820039 DOI: 10.1002/med.21346] [Citation(s) in RCA: 65] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2014] [Accepted: 02/15/2015] [Indexed: 02/06/2023]
Abstract
Steroidal alkaloids are a class of secondary metabolites isolated from plants, amphibians, and marine invertebrates. Evidence accumulated in the recent two decades demonstrates that steroidal alkaloids have a wide range of bioactivities including anticancer, antimicrobial, anti-inflammatory, antinociceptive, etc., suggesting their great potential for application. It is therefore necessary to comprehensively summarize the bioactivities, especially anticancer activities and mechanisms of steroidal alkaloids. Here we systematically highlight the anticancer profiles both in vitro and in vivo of steroidal alkaloids such as dendrogenin, solanidine, solasodine, tomatidine, cyclopamine, and their derivatives. Furthermore, other bioactivities of steroidal alkaloids are also discussed. The integrated molecular mechanisms in this review can increase our understanding on the utilization of steroidal alkaloids and contribute to the development of new drug candidates. Although the therapeutic potentials of steroidal alkaloids look promising in the preclinical and clinical studies, further pharmacokinetic and clinical studies are mandated to define their efficacy and safety in cancer and other diseases.
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Affiliation(s)
- Qi-Wei Jiang
- Department of Cell Biology & Institute of Biomedicine, National Engineering Research Center of Genetic Medicine, Guangdong Provincial Key Laboratory of Bioengineering Medicine, College of Life Science and Technology, Jinan University, Guangzhou, 510632, Guangdong, China
| | - Mei-Wan Chen
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, 519000, China
| | - Ke-Jun Cheng
- Chemical Biology Center, Lishui Institute of Agricultural Sciences, Lishui, 323000, Zhejiang, China
| | - Pei-Zhong Yu
- Department of Natural Products Chemistry, School of Pharmacy, Fudan University, Shanghai, 200433, China
| | - Xing Wei
- Department of Cell Biology & Institute of Biomedicine, National Engineering Research Center of Genetic Medicine, Guangdong Provincial Key Laboratory of Bioengineering Medicine, College of Life Science and Technology, Jinan University, Guangzhou, 510632, Guangdong, China
| | - Zhi Shi
- Department of Cell Biology & Institute of Biomedicine, National Engineering Research Center of Genetic Medicine, Guangdong Provincial Key Laboratory of Bioengineering Medicine, College of Life Science and Technology, Jinan University, Guangzhou, 510632, Guangdong, China
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46
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Zuber T, Holm D, Byrne P, Ducreux L, Taylor M, Kaiser M, Stushnoff C. Optimization of in vitro inhibition of HT-29 colon cancer cell cultures by Solanum tuberosum L. extracts. Food Funct 2014; 6:72-83. [PMID: 25338312 DOI: 10.1039/c4fo00649f] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Secondary metabolites in potato have been reported to possess bioactive properties, including growth inhibition of cancer cells. Because potatoes are widely consumed globally, potential health benefits may have broad application. Thus we investigated growth inhibition of HT-29 colon cancer cell cultures by extracts from 13 diverse genetic breeding clones. Extracts from three pigmented selections (CO97226-2R/R, CO97216-1P/P, CO04058-3RW/RW) inhibited growth of in vitro HT-29 cell cultures more effectively than other clones tested. While inhibition was highest from pigmented selections and pigmented tuber tissue sectors, not all pigmented breeding lines tested had appreciable inhibitory properties. Thus, inhibition was not uniquely linked to pigmentation. Immature tubers had the highest inhibitory properties, and in most cases mature tubers retained very low inhibition properties. Flowers and skins inhibited strongly at lower extract concentrations. An extract consisting of 7.2 mg mL⁻¹ cell culture medium was the lowest effective concentration. While raw tuber extracts inhibited most effectively, a few clones at higher concentrations retained inhibition after cooking. Heated whole tubers retained higher inhibition than heated aqueous extracts. While all aqueous extracts from the two tuber selections (CO97216-1P/P and CO97226-2R/R) inhibited HT-29 cell cultures, inhibition was significantly enhanced in purple pigmented tubers of CO97216-1P/P prepared cryogenically as liquid nitrogen powders compared to extracts from freeze dried samples. Upregulation of caspase-3 protease activity, indicative of apoptosis, was highest among the most inhibitory clone samples. The unique sectorial red pigment expressing selection (CO04058-3RW/RW) provided a model system that isolated expression in pigmented sectors, and thus eliminated developmental, environmental and genetic confounding.
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Affiliation(s)
- T Zuber
- Department of Horticulture & Landscape Architecture, Colorado State University, Fort Collins, CO 80523-1173, USA.
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47
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Shen KH, Liao ACH, Hung JH, Lee WJ, Hu KC, Lin PT, Liao RF, Chen PS. α-Solanine inhibits invasion of human prostate cancer cell by suppressing epithelial-mesenchymal transition and MMPs expression. Molecules 2014; 19:11896-914. [PMID: 25116803 PMCID: PMC6271914 DOI: 10.3390/molecules190811896] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2014] [Revised: 08/02/2014] [Accepted: 08/05/2014] [Indexed: 01/22/2023] Open
Abstract
α-Solanine, a naturally occurring steroidal glycoalkaloid found in nightshade (Solanum nigrum Linn.), was found to inhibit proliferation and induce apoptosis of tumor cells. However, the mechanism involved in suppression of cancer cell metastasis by α-solanine remains unclear. This study investigates the suppression mechanism of α-solanine on motility of the human prostate cancer cell PC-3. Results show that α-solanine reduces the viability of PC-3 cells. When treated with non-toxic doses of α-solanine, cell invasion is markedly suppressed by α-solanine. α-Solanine also significantly elevates epithelial marker E-cadherin expression, while it concomitantly decreases mesenchymal marker vimentin expression, suggesting it suppresses epithelial-mesenchymal transition (EMT). α-Solanine reduces the mRNA level of matrix metalloproteinase-2 (MMP-2), MMP-9 and extracellular inducer of matrix metalloproteinase (EMMPRIN), but increases the expression of reversion-inducing cysteine-rich protein with kazal motifs (RECK), and tissue inhibitor of metalloproteinase-1 (TIMP-1) and TIMP-2. Immunoblotting assays indicate α-solanine is effective in suppressing the phosphorylation of phosphatidylinositide-3 kinase (PI3K), Akt and ERK. Moreover, α-solanine downregulates oncogenic microRNA-21 (miR-21) and upregulates tumor suppressor miR-138 expression. Taken together, the results suggest that inhibition of PC-3 cell invasion by α-solanine may be, at least in part, through blocking EMT and MMPs expression. α-Solanine also reduces ERK and PI3K/Akt signaling pathways and regulates expression of miR-21 and miR-138. These findings suggest an attractive therapeutic potential of α-solanine for suppressing invasion of prostate cancer cell.
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Affiliation(s)
- Kun-Hung Shen
- Division of Urology, Department of Surgery, Chi Mei Medical Center, Tainan 710, Taiwan.
| | - Alex Chien-Hwa Liao
- Division of Urology, Department of Surgery, Chi Mei Medical Center, Tainan 710, Taiwan.
| | - Jui-Hsiang Hung
- Department of Biotechnology, Chia Nan University of Pharmacy & Science, Tainan 717, Taiwan.
| | - Wei-Jiunn Lee
- Department of Urology, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan.
| | - Kai-Chieh Hu
- Department of Biotechnology, Chia Nan University of Pharmacy & Science, Tainan 717, Taiwan.
| | - Pin-Tsen Lin
- Department of Biotechnology, Chia Nan University of Pharmacy & Science, Tainan 717, Taiwan.
| | - Ruei-Fang Liao
- Department of Biotechnology, Chia Nan University of Pharmacy & Science, Tainan 717, Taiwan.
| | - Pin-Shern Chen
- Department of Biotechnology, Chia Nan University of Pharmacy & Science, Tainan 717, Taiwan.
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48
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Solanine induces mitochondria-mediated apoptosis in human pancreatic cancer cells. BIOMED RESEARCH INTERNATIONAL 2014; 2014:805926. [PMID: 24949471 PMCID: PMC4037623 DOI: 10.1155/2014/805926] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/16/2013] [Revised: 02/19/2014] [Accepted: 04/15/2014] [Indexed: 12/13/2022]
Abstract
Steroid alkaloids have been suggested as potential anticancer compounds. However, the underlying mechanisms of how steroid alkaloids inhibit the tumor growth are largely unknown. Here, we reported that solanine, a substance of steroid alkaloids, has a positive effect on the inhibition of pancreatic cancer cell growth in vitro and in vivo. In pancreatic cancer cells and nu/nu nude mice model, we found that solanine inhibited cancer cells growth through caspase-3 dependent mitochondrial apoptosis. Mechanically, solanine promotes the opening of mitochondrial membrane permeability transition pore (MPTP) by downregulating the Bcl-2/Bax ratio; thereafter, Cytochrome c and Smac are released from mitochondria into cytosol to process the caspase-3 zymogen into an activated form. Moreover, we found that the expression of tumor metastasis related proteins, MMP-2 and MMP-9, was also decreased in the cells treated with solanine. Therefore, our results suggested that solanine was an effective compound for the treatment of pancreatic cancer.
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49
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Valcarcel J, Reilly K, Gaffney M, O'Brien N. Effect of Genotype and Environment on the Glycoalkaloid Content of Rare, Heritage, and Commercial Potato Varieties. J Food Sci 2014; 79:T1039-48. [DOI: 10.1111/1750-3841.12443] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2013] [Accepted: 01/22/2014] [Indexed: 11/28/2022]
Affiliation(s)
- Jesus Valcarcel
- Teagasc Ashtown Food Research Centre; Dublin 15 Ireland
- School of Food and Nutritional Sciences; Univ. College Cork; Cork Ireland
| | - Kim Reilly
- Teagasc Ashtown Food Research Centre; Dublin 15 Ireland
- Agrifood Scientific; 219 Tonlegee Rd., Dublin 5 Ireland
| | | | - Nora O'Brien
- School of Food and Nutritional Sciences; Univ. College Cork; Cork Ireland
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50
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Electrochemical determination of glycoalkaloids using a carbon nanotubes-phenylboronic acid modified glassy carbon electrode. SENSORS 2013; 13:16234-44. [PMID: 24287539 PMCID: PMC3892834 DOI: 10.3390/s131216234] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/05/2013] [Revised: 11/12/2013] [Accepted: 11/18/2013] [Indexed: 11/17/2022]
Abstract
A versatile strategy for electrochemical determination of glycoalkaloids (GAs) was developed by using a carbon nanotubes-phenylboronic acid (CNTs-PBA) modified glassy carbon electrode. PBA reacts with α-solanine and α-chaconine to form a cyclic ester, which could be utilized to detect GAs. This method allowed GA detection from 1 μM to 28 μM and the detection limit was 0.3 μM. Affinity interaction of GAs and immobilized PBA caused an essential change of the peak current. The CNT-PBA modified electrodes were sensitive for detection of GAs, and the peak current values were in quite good agreement with those measured by the sensors.
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