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Rosas-Ramírez D, Arreguín-Espinosa R, Escandón-Rivera S, Andrade-Cetto A, Mata-Torres G, Pérez-Solís R. Identification of Hypoglycemic Glycolipids from Ipomoea murucoides by Affinity-Directed Fractionation, In Vitro, In Silico and Dynamic Light Scattering Analysis. PLANTS (BASEL, SWITZERLAND) 2024; 13:644. [PMID: 38475490 DOI: 10.3390/plants13050644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 02/08/2024] [Accepted: 02/19/2024] [Indexed: 03/14/2024]
Abstract
In the pursuit of identifying the novel resin glycoside modulators glucose-6-phosphatase and α-glucosidase enzymes, associated with blood sugar regulation, methanol-soluble extracts from the flowers of Ipomoea murucoides (cazahuate, Nahuatl), renowned for its abundance of glycolipids, were employed. The methanol-soluble extracts were fractionated by applying the affinity-directed method with glucose-6-phosphatase enzymes from a rat's liver and α-glucosidase enzymes from its intestines. Mass spectrometry and nuclear magnetic resonance were employed to identify the high-affinity compound as a free ligand following the release from the enzymatic complex. Gel permeation through a spin size-exclusion column allowed the separated high-affinity molecules to bind to glucose-6-phosphatase and α-glucosidase enzymes in solution, which led to the identification of some previously reported resin glycosides in the flowers of cazahuate, where a glycolipid mainly structurally related to murucoidin XIV was observed. In vitro studies demonstrated the modulating properties of resin glycosides on the glucose-6-phosphatase enzyme. Dynamic light scattering revealed conformational variations induced by resin glycosides on α-glucosidase enzyme, causing them to become more compact, akin to observations with the positive control, acarbose. These findings suggest that resin glycosides may serve as a potential source for phytotherapeutic agents with antihyperglycemic properties.
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Affiliation(s)
- Daniel Rosas-Ramírez
- Departamento de Química de Biomacromoléculas, Instituto de Química, Universidad Nacional Autónoma de México, Av. Universidad 3000, Circuito Exterior s/n, Coyoacán, Ciudad Universitaria, Mexico City 04510, Mexico
| | - Roberto Arreguín-Espinosa
- Departamento de Química de Biomacromoléculas, Instituto de Química, Universidad Nacional Autónoma de México, Av. Universidad 3000, Circuito Exterior s/n, Coyoacán, Ciudad Universitaria, Mexico City 04510, Mexico
| | - Sonia Escandón-Rivera
- Departamento de Biología Celular, Facultad de Ciencias, Universidad Nacional Autónoma de México, Av. Universidad 3000, Circuito Exterior s/n, Coyoacán, Ciudad Universitaria, Mexico City 04510, Mexico
| | - Adolfo Andrade-Cetto
- Departamento de Biología Celular, Facultad de Ciencias, Universidad Nacional Autónoma de México, Av. Universidad 3000, Circuito Exterior s/n, Coyoacán, Ciudad Universitaria, Mexico City 04510, Mexico
| | - Gerardo Mata-Torres
- Departamento de Biología Celular, Facultad de Ciencias, Universidad Nacional Autónoma de México, Av. Universidad 3000, Circuito Exterior s/n, Coyoacán, Ciudad Universitaria, Mexico City 04510, Mexico
| | - Ricardo Pérez-Solís
- Departamento de Química de Biomacromoléculas, Instituto de Química, Universidad Nacional Autónoma de México, Av. Universidad 3000, Circuito Exterior s/n, Coyoacán, Ciudad Universitaria, Mexico City 04510, Mexico
- Departamento de Ingenieria Mecatrónica, Tecnológico Nacional de México, Instituto Tecnológico Superior de Atlixco, Heliotropo 1201, Unidad 8 Norte Nueva Xalpatlaco, Vista Hermosa, Atlixco 74218, Mexico
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Ramalingam S, Chandrasekar MJN, Krishnan GGN, Nanjan MJ. Plant-based Natural Products as inhibitors for Efflux Pumps to Reverse Multidrug Resistance in Staphylococcus aureus: A Mini Review. Mini Rev Med Chem 2024; 24:272-288. [PMID: 37038687 DOI: 10.2174/1389557523666230406092128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 02/09/2023] [Accepted: 02/22/2023] [Indexed: 04/12/2023]
Abstract
Wounds provide a favourable site for microbial infection. Wound infection makes the healing more complex and does not proceed in an orchestrated manner leading to the chronic wound. Clinically infected wounds require proper antimicrobial therapy. Broad-spectrum antibiotics are usually prescribed first before going to targeted therapy. The current conventional mode of therapy mainly depends on the use of antibiotics topically or systemically. Repeated and prolonged use of antibiotics, however, leads to multidrug resistance. Staphylococcus aureus is the most common multidrugresistant microorganism found in wounds. It effectively colonizes the wound and produces many toxins, thereby reducing the host immune response and causing recurrent infection, thus making the wound more complex. The overexpression of efflux pumps is one of the major reasons for the emergence of multidrug resistance. Inhibition of efflux pumps is, therefore, a potential strategy to reverse this resistance. The effective therapy to overcome this antibiotic resistance is to use combination therapy, namely the combination of an inhibitor, and a non-antibiotic compound with an antibiotic for their dual function. Many synthetic efflux pump inhibitors to treat wound infections are still under clinical trials. In this connection, several investigations have been carried out on plant-based natural products as multidrug resistance-modifying agents as they are believed to be safe, inexpensive and suitable for chronic wound infections.
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Affiliation(s)
- Shalini Ramalingam
- Department of Pharmaceutical Chemistry, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Ooty, Nilgiris, Tamil Nadu, 643001, India
| | - Moola Joghee Nanjan Chandrasekar
- School of Life Sciences, JSS Academy of Higher Education & Research (Ooty Campus), Longwood, Mysuru Road, Ooty, The Nilgiris, Tamil Nadu, 643001, India
| | - Ganesh G N Krishnan
- Department of Pharmaceutics, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Ooty, Nilgiris, Tamil Nadu, 643001, India
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Varela MF, Stephen J, Bharti D, Lekshmi M, Kumar S. Inhibition of Multidrug Efflux Pumps Belonging to the Major Facilitator Superfamily in Bacterial Pathogens. Biomedicines 2023; 11:1448. [PMID: 37239119 PMCID: PMC10216197 DOI: 10.3390/biomedicines11051448] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 05/07/2023] [Accepted: 05/10/2023] [Indexed: 05/28/2023] Open
Abstract
Bacterial pathogens resistant to multiple structurally distinct antimicrobial agents are causative agents of infectious disease, and they thus constitute a serious concern for public health. Of the various bacterial mechanisms for antimicrobial resistance, active efflux is a well-known system that extrudes clinically relevant antimicrobial agents, rendering specific pathogens recalcitrant to the growth-inhibitory effects of multiple drugs. In particular, multidrug efflux pump members of the major facilitator superfamily constitute central resistance systems in bacterial pathogens. This review article addresses the recent efforts to modulate these antimicrobial efflux transporters from a molecular perspective. Such investigations can potentially restore the clinical efficacy of infectious disease chemotherapy.
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Affiliation(s)
- Manuel F. Varela
- Department of Biology, Eastern New Mexico University, Station 33, Portales, NM 88130, USA
| | - Jerusha Stephen
- ICAR-Central Institute of Fisheries Education (CIFE), Mumbai 400061, India; (J.S.); (D.B.); (M.L.); (S.K.)
| | - Deeksha Bharti
- ICAR-Central Institute of Fisheries Education (CIFE), Mumbai 400061, India; (J.S.); (D.B.); (M.L.); (S.K.)
| | - Manjusha Lekshmi
- ICAR-Central Institute of Fisheries Education (CIFE), Mumbai 400061, India; (J.S.); (D.B.); (M.L.); (S.K.)
| | - Sanath Kumar
- ICAR-Central Institute of Fisheries Education (CIFE), Mumbai 400061, India; (J.S.); (D.B.); (M.L.); (S.K.)
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Fan BY, Jiang X, Li YX, Wang WL, Yang M, Li JL, Wang AD, Chen GT. Chemistry and biological activity of resin glycosides from Convolvulaceae species. Med Res Rev 2022; 42:2025-2066. [PMID: 35707917 DOI: 10.1002/med.21916] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Revised: 03/12/2022] [Accepted: 06/07/2022] [Indexed: 11/09/2022]
Abstract
Carbohydrate-based drug discovery has gained more and more attention during the last few decades. Resin glycoside is a kind of novel and complex glycolipids mainly distributed in plants of the family Convolvulaceae. Over the last decade, a number of natural resin glycosides and derivatives have been isolated and identified, and exhibited a broad spectrum of biological activities, such as cytotoxic, multidrug-resistant reversal on both microbial pathogens and mammalian cancer cells, antivirus, anticonvulsant, antidepressant, sedative, vasorelaxant, laxative, and α-glucosidase inhibitory effects, indicating their potential as lead compounds for drug discovery. A systematic review of the literature studies was carried out to summarize the chemistry and biological activity of resin glycosides from Convolvulaceae species, based on various data sources such as PubMed, Web of Science, Scopus, and Google scholar. The keyword "Convolvulaceae" was paired with "resin glycoside," "glycosidic acid," "glycolipid," or "oligosaccharide," and the references published between 2009 and June 2021 were covered. In this article, we comprehensively reviewed the structures of 288 natural resin glycoside and derivatives newly reported in the last decade. Moreover, we summarized the biological activities and mechanisms of action of the resin glycosides with pharmaceutical potential. Taken together, great progress has been made on the chemistry and biological activity of resin glycosides from Convolvulaceae species, however, more exploratory research is still needed, especially on the mechanism of action of the biological activities.
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Affiliation(s)
- Bo-Yi Fan
- Department of Natural Medicines, School of Pharmacy, Nantong University, Nantong, Jiangsu Province, China
| | - Xing Jiang
- Department of Natural Medicines, School of Pharmacy, Nantong University, Nantong, Jiangsu Province, China
| | - Yu-Xin Li
- Department of Natural Medicines, School of Pharmacy, Nantong University, Nantong, Jiangsu Province, China
| | - Wen-Li Wang
- Department of Natural Medicines, School of Pharmacy, Nantong University, Nantong, Jiangsu Province, China
| | - Min Yang
- Department of Natural Medicines, School of Pharmacy, Nantong University, Nantong, Jiangsu Province, China
| | - Jian-Lin Li
- Department of Natural Medicines, School of Pharmacy, Nantong University, Nantong, Jiangsu Province, China
| | - An-Dong Wang
- Department of Natural Medicines, School of Pharmacy, Nantong University, Nantong, Jiangsu Province, China
| | - Guang-Tong Chen
- Department of Natural Medicines, School of Pharmacy, Nantong University, Nantong, Jiangsu Province, China
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Liang H, Hu J, Li Z, Yin Y. Two new resin glycosides from Calystegia sepium (L.) R. Br. with potential antitumor activity. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.132636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Dassanayake MK, Khoo TJ, An J. Antibiotic resistance modifying ability of phytoextracts in anthrax biological agent Bacillus anthracis and emerging superbugs: a review of synergistic mechanisms. Ann Clin Microbiol Antimicrob 2021; 20:79. [PMID: 34856999 PMCID: PMC8641154 DOI: 10.1186/s12941-021-00485-0] [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: 03/28/2021] [Accepted: 11/22/2021] [Indexed: 01/17/2023] Open
Abstract
Background and objectives The chemotherapeutic management of infections has become challenging due to the global emergence of antibiotic resistant pathogenic bacteria. The recent expansion of studies on plant-derived natural products has lead to the discovery of a plethora of phytochemicals with the potential to combat bacterial drug resistance via various mechanisms of action. This review paper summarizes the primary antibiotic resistance mechanisms of bacteria and also discusses the antibiotic-potentiating ability of phytoextracts and various classes of isolated phytochemicals in reversing antibiotic resistance in anthrax agent Bacillus anthracis and emerging superbug bacteria. Methods Growth inhibitory indices and fractional inhibitory concentration index were applied to evaluate the in vitro synergistic activity of phytoextract-antibiotic combinations in general. Findings A number of studies have indicated that plant-derived natural compounds are capable of significantly reducing the minimum inhibitory concentration of standard antibiotics by altering drug-resistance mechanisms of B. anthracis and other superbug infection causing bacteria. Phytochemical compounds allicin, oleanolic acid, epigallocatechin gallate and curcumin and Jatropha curcas extracts were exceptional synergistic potentiators of various standard antibiotics. Conclusion Considering these facts, phytochemicals represents a valuable and novel source of bioactive compounds with potent antibiotic synergism to modulate bacterial drug-resistance.
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Affiliation(s)
- Mackingsley Kushan Dassanayake
- School of Pharmacy, Faculty of Science and Engineering, University of Nottingham Malaysia, Jalan Broga, 43500, Semenyih, Malaysia.
| | - Teng-Jin Khoo
- School of Pharmacy, Faculty of Science and Engineering, University of Nottingham Malaysia, Jalan Broga, 43500, Semenyih, Malaysia
| | - Jia An
- Singapore Centre for 3D Printing, School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore, Singapore
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Monteiro KLC, de Aquino TM, Mendonça Junior FJB. An Update on Staphylococcus aureus NorA Efflux Pump Inhibitors. Curr Top Med Chem 2021; 20:2168-2185. [PMID: 32621719 DOI: 10.2174/1568026620666200704135837] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Revised: 02/15/2020] [Accepted: 04/05/2020] [Indexed: 01/02/2023]
Abstract
BACKGROUND Methicillin-resistant and vancomycin-resistant Staphylococcus aureus are pathogens causing severe infectious diseases that pose real public health threats problems worldwide. In S. aureus, the most efficient multidrug-resistant system is the NorA efflux pump. For this reason, it is critical to identify efflux pump inhibitors. OBJECTIVE In this paper, we present an update of the new natural and synthetic compounds that act as modulators of antibiotic resistance through the inhibition of the S. aureus NorA efflux pump. RESULTS Several classes of compounds capable of restoring the antibiotic activity have been identified against resistant-S. aureus strains, acting as NorA efflux pump inhibitors. The most promising classes of compounds were quinolines, indoles, pyridines, phenols, and sulfur-containing heterocycles. However, the substantial degree structural diversity of these compounds makes it difficult to establish good structure- activity correlations that allow the design of compounds with more promising activities and properties. CONCLUSION Despite substantial efforts put forth in the search for new antibiotic adjuvants that act as efflux pump inhibitors, and despite several promising results, there are currently no efflux pump inhibitors authorized for human or veterinary use, or in clinical trials. Unfortunately, it appears that infection control strategies have remained the same since the discovery of penicillin, and that most efforts remain focused on discovering new classes of antibiotics, rather than trying to prolong the life of available antibiotics, and simultaneously fighting mechanisms of bacterial resistance.
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Efflux pumps as interventions to control infection caused by drug-resistance bacteria. Drug Discov Today 2020; 25:2307-2316. [PMID: 33011344 DOI: 10.1016/j.drudis.2020.09.028] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Revised: 08/06/2020] [Accepted: 09/24/2020] [Indexed: 12/30/2022]
Abstract
Antibiotic resistance has become a global concern for healthcare workers and physicians. Efflux pumps are one of the major mechanisms of resistance. Hence, we describe examples of natural efflux pump inhibitors used to combat antibiotic resistance.
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Sharma A, Gupta VK, Pathania R. Efflux pump inhibitors for bacterial pathogens: From bench to bedside. Indian J Med Res 2019; 149:129-145. [PMID: 31219077 PMCID: PMC6563736 DOI: 10.4103/ijmr.ijmr_2079_17] [Citation(s) in RCA: 166] [Impact Index Per Article: 33.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
With the advent of antibiotics, bacterial infections were supposed to be a thing of past. However, this instead led to the selection and evolution of bacteria with mechanisms to counter the action of antibiotics. Antibiotic efflux is one of the major mechanisms, whereby bacteria pump out the antibiotics from their cellular interior to the external environment using special transporter proteins called efflux pumps. Inhibiting these pumps seems to be an attractive strategy at a time when novel antibiotic supplies are dwindling. Molecules capable of inhibiting these pumps, known as efflux pump inhibitors (EPIs), have been viewed as potential therapeutic agents that can rejuvenate the activity of antibiotics that are no longer effective against bacterial pathogens. EPIs follow some general mechanisms of efflux inhibition and are derived from various natural as well as synthetic sources. This review focuses on EPIs and identifies the challenges that have kept these futuristic therapeutics away from the commercial realm so far.
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Affiliation(s)
- Atin Sharma
- Department of Biotechnology, Indian Institute of Technology, Roorkee, India
| | - Vivek Kumar Gupta
- Department of Biotechnology, Indian Institute of Technology, Roorkee, India
| | - Ranjana Pathania
- Department of Biotechnology, Indian Institute of Technology, Roorkee, India
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Marchianti ACN, Sakinah EN, Elfiah U, Putri NKS, Wahyuliswari DI, Maulana M, Ulfa EU. Gel formulations of Merremia mammosa (Lour.) accelerated wound healing of the wound in diabetic rats. J Tradit Complement Med 2019; 11:38-45. [PMID: 33511060 PMCID: PMC7817712 DOI: 10.1016/j.jtcme.2019.12.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Revised: 12/01/2019] [Accepted: 12/08/2019] [Indexed: 01/24/2023] Open
Abstract
Background and aim The treatment of diabetic ulcers is difficult because of defective blood vessels and frequent co-occurrence of bacterial infections. In a previous study, we found a water fraction of Merremia mammosa (Lour.) (Mm(Lour.)) had beneficial effects on wound healing in diabetic rats. This study aimed to evaluate the influence of different gelling agents added to Mm(Lour.) water fraction gel on wound healing treatment in diabetic rats. Experimental procedure Diabetic Wistar rats were divided into the following five groups: 1. positive control (Neomycin Sulfate 0.5% and Placenta Extract 10%), 2. negative control (distilled water), and 10% water fraction of Mm(Lour.) extract in 3. HPMC, 4. Carbopol, and 5. CMC Na gelling agents. The wound was made by the Morton method and treatment applied every other day for 25 days, then the wound healing process was observed. Data were observed and analysed using appropriate statistic tools. Results Histopathology observation, VEGF expression and hydroxyproline levels showed a significant acceleration of wound healing in all treatment groups compared to the negative control group. This study showed all of Mm(Lour.) gel formulations could restore the delayed healing process on wound in diabetic rats and were equally effective in accelerating wound healing. CMC Na was the most preferable because it did not irritate. Conclusion The results suggest that Mm(Lour.) water fraction in CMC Na gelling agent provided an option to be developed as a topical drug on diabetic wound healing treatment, showed by enhancement of collagen synthesis and angiogenesis. Merremia mammosa (Lour.) gel accelerated wound healing in the diabetic rat model. Negative-control and each other groups had significant different healing. Positive-control and treatment groups had insignificant different healing. The safest and suggested gelling agent as a topical drug was CMC Na.
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Affiliation(s)
- Ancah Caesarina Novi Marchianti
- Department of Public Health, Faculty of Medicine, University of Jember, Jalan Kalimantan No.37, Jember, 68121, Indonesia
- Corresponding author.
| | - Elly Nurus Sakinah
- Department of Pharmacology, Faculty of Medicine, University of Jember, Jalan Kalimantan No.37, Jember, 68121, Indonesia
| | - Ulfa Elfiah
- Department of Anatomy, Faculty of Medicine, University of Jember, Jalan Kalimantan No.37, Jember, 68121, Indonesia
| | | | | | - Mizan Maulana
- Faculty of Medicine, University of Jember, Jalan Kalimantan No.37, Jember, 68121, Indonesia
| | - Evi Umayah Ulfa
- Department of Pharmaceutical Biology, Faculty of Pharmacy, University of Jember, Jalan Kalimantan No.37, Jember, 68121, Indonesia
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Plant-derived secondary metabolites as the main source of efflux pump inhibitors and methods for identification. J Pharm Anal 2019; 10:277-290. [PMID: 32923005 PMCID: PMC7474127 DOI: 10.1016/j.jpha.2019.11.002] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 10/05/2019] [Accepted: 11/04/2019] [Indexed: 12/25/2022] Open
Abstract
The upsurge of multiple drug resistance (MDR) bacteria substantially diminishes the effectiveness of antibiotic arsenal and therefore intensifies the rate of therapeutic failure. The major factor in MDR is efflux pump-mediated resistance. A unique pump can make bacteria withstand a wide range of structurally diverse compounds. Therefore, their inhibition is a promising route to eliminate resistance phenomenon in bacteria. Phytochemicals are excellent alternatives as resistance-modifying agents. They can directly kill bacteria or interact with the crucial events of pathogenicity, thereby decreasing the ability of bacteria to develop resistance. Numerous botanicals display noteworthy efflux pumps inhibitory activities. Edible plants are of growing interest. Likewise, some plant families would be excellent sources of efflux pump inhibitors (EPIs) including Apocynaceae, Berberidaceae, Convolvulaceae, Cucurbitaceae, Fabaceae, Lamiaceae, and Zingiberaceae. Easily applicable methods for screening plant-derived EPIs include checkerboard synergy test, berberine uptake assay and ethidium bromide test. In silico high-throughput virtual detection can be evaluated as a criterion of excluding compounds with efflux substrate-like characteristics, thereby improving the selection process and extending the identification of EPIs. To ascertain the efflux activity inhibition, real-time PCR and quantitative mass spectrometry can be applied. This review emphasizes on efflux pumps and their roles in transmitting bacterial resistance and an update plant-derived EPIs and strategies for identification. Active efflux as the main resistance strategy in bacteria. Phytochemicals as promising alternatives against efflux pumps-mediated MDR. Herbals-based efflux pump inhibitors screening, the methods.
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Lira-Ricárdez J, Pereda-Miranda R, Castañeda-Gómez J, Fragoso-Serrano M, Simas RC, Leitão SG. Resin Glycosides from the Roots of Operculina macrocarpa (Brazilian Jalap) with Purgative Activity. JOURNAL OF NATURAL PRODUCTS 2019; 82:1664-1677. [PMID: 31188591 DOI: 10.1021/acs.jnatprod.9b00222] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Analysis of the methanol-soluble resin glycosides from the roots of Operculina macrocarpa was assessed by generating NMR profiles of five glycosidic acids obtained through saponification, acetylation, and recycling HPLC purification. Operculinic acid H (1), two novel hexasaccharides, operculinic acids I (2) and J (3), the known purgic acid A (4), and a quinovopyranoside of (-)-(7 R)-hydroxydecanoic acid, operculinic acid K (5), were isolated. Three intact resin glycosides related to 1, the novel macrocarposidic acids A (6) and B (7), in addition to the previously known macrocarposidic acid C (8), were also purified with isovaleroyl, tigloyl, and exogonoyl [(3 S,9 R)-3,6:6,9-diepoxydecanoyl] groups as esterifying residues. A selective intramolecular lactonization was produced to generate a macrocyclic artifact (17) during acetylation of 1, resembling the distinctive structure of the Convolvulaceous resin glycosides.
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Affiliation(s)
- Jesús Lira-Ricárdez
- Departamento de Farmacia, Facultad de Química and Programa de Maestría y Doctorado en Ciencias Químicas , Universidad Nacional Autónoma de México, Ciudad Universitaria , Mexico City 04510 , Mexico
| | - Rogelio Pereda-Miranda
- Departamento de Farmacia, Facultad de Química and Programa de Maestría y Doctorado en Ciencias Químicas , Universidad Nacional Autónoma de México, Ciudad Universitaria , Mexico City 04510 , Mexico
| | - Jhon Castañeda-Gómez
- Grupo Químico de Investigación y Desarrollo Ambiental, Programa de Licenciatura en Ciencias Naturales y Educación Ambiental, Facultad de Educación , Universidad Surcolombiana , Neiva , Colombia
| | - Mabel Fragoso-Serrano
- Departamento de Farmacia, Facultad de Química and Programa de Maestría y Doctorado en Ciencias Químicas , Universidad Nacional Autónoma de México, Ciudad Universitaria , Mexico City 04510 , Mexico
| | - Rosineide Costa Simas
- Faculdade de Farmácia , Universidade Federal do Rio de Janeiro , CCS, Bloco A , Ilha do Fundão , 21941-902 , Rio de Janeiro , Brazil
| | - Suzana Guimarães Leitão
- Faculdade de Farmácia , Universidade Federal do Rio de Janeiro , CCS, Bloco A , Ilha do Fundão , 21941-902 , Rio de Janeiro , Brazil
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Ayaz M, Ullah F, Sadiq A, Ullah F, Ovais M, Ahmed J, Devkota HP. Synergistic interactions of phytochemicals with antimicrobial agents: Potential strategy to counteract drug resistance. Chem Biol Interact 2019; 308:294-303. [PMID: 31158333 DOI: 10.1016/j.cbi.2019.05.050] [Citation(s) in RCA: 141] [Impact Index Per Article: 28.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Revised: 05/18/2019] [Accepted: 05/29/2019] [Indexed: 01/22/2023]
Abstract
The emergence of multidrug resistant (MDR) pathogens is a global threat and has created problems in providing adequate treatment of many infectious diseases. Although the conventional antimicrobial agents are quite effective against several pathogens, yet there is a need for more effective antimicrobial agents against MDR pathogens. Herbal drugs and phytochemicals have been used for their effective antimicrobial activity from ancient times and there is an increasing trend for development of plant based natural products for the prevention and treatment of pathogenic diseases. One of the strategies for effective resistance modification is the use of antimicrobial agent-phytochemical combinations that will neutralize the resistance mechanism, enabling the drug to still be effective against resistant microbes. These phytochemicals can work by several strategies, such as inhibition of target modifying and drug degrading enzymes or as efflux pumps inhibitors. A plethora of herbal extracts, essential oils and isolated pure compounds have been reported to act synergistically with existing antibiotics, antifungals and chemotherapeutics and augment the activity of these drugs. Considerable increases in the susceptibility pattern of several microbes towards the natural antimicrobials and their combinations were observed as indicated by significant decline in minimum inhibitory concentrations. This review paper summarizes the current developments regarding synergistic interactions of plant extracts and isolated pure compounds in combination with existing antibacterial, antifungal agents and chemotherapeutics. The effect of these agents on the susceptibility patterns of these pathogens and possible mechanisms of action are described in detail. In conclusion, many phytochemicals in combination with existing drugs were found to act as resistance modifying agents and proper combinations may rescue the efficacy of important lifesaving antimicrobial agents.
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Affiliation(s)
- Muhammad Ayaz
- Department of Pharmacy, University of Malakand, Khyber Pakhtunkhwa (KP), 18000, Pakistan.
| | - Farhat Ullah
- Department of Pharmacy, University of Malakand, Khyber Pakhtunkhwa (KP), 18000, Pakistan.
| | - Abdul Sadiq
- Department of Pharmacy, University of Malakand, Khyber Pakhtunkhwa (KP), 18000, Pakistan.
| | - Farman Ullah
- Department of Pharmacy, Kohat University of Science and Technology (KUST), Khyber Pakhtunkhwa (KP), Pakistan.
| | - Muhammad Ovais
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology, Beijing, 100190, China; University of Chinese Academy of Sciences, Beijing, 100049, PR China.
| | - Jawad Ahmed
- Institute of Basic Medical Sciences (IBMS), Khyber Medical University, Peshawar, Pakistan.
| | - Hari Prasad Devkota
- (e)Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Chuo-ku, Kumamoto City, Kumamoto, 862-0973, Japan.
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Sura MB, Ponnapalli MG, Annam SCVAR, Bobbili VVP. Ipomeolides A and B, Resin Glycosides from Ipomoea pes-caprae and Combination Therapy of Ipomeolide A with Doxorubicin. JOURNAL OF NATURAL PRODUCTS 2019; 82:1292-1300. [PMID: 31017778 DOI: 10.1021/acs.jnatprod.8b01100] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Two new resin glycosides, ipomeolides A (1) and B (2), both with an unusual nonlinear heteropentasaccharide core, along with five known compounds were isolated from the n-hexane/CHCl3 (1:1) extract of the aerial parts of Ipomoea pes-caprae. Ipomeolides A (1) and B (2) are macrolactone analogues of the rare (11 R)-jalapinolic acid, and macrolactonization occurred at C-2 of the second saccharide moiety. Compounds 1 and 2 show structural variation even in the pentasaccharide core. The structures of 1 and 2 were established by a combination of spectroscopic techniques as well as chemical modifications such as acetyl and acetonide derivatives as well as hydrolysis products. The new glycosidic acid was named ipomeic acid (1c). Compounds 1, 1b, and 2b were evaluated for cytotoxicity against human tumor cell lines. Compounds 1b and 2b were not effective on epithelial cells, but affected survival of K-562, which is of hematopoietic origin. A sublethal concentration of compound 1 (4 μM) when used in combination with 1 μM doxorubicin, an anticancer agent, significantly enhanced cytotoxicity to tumor cells. Such combined synergistic potency against leukemia cells and the absence of effects on epithelial cells may be beneficial for chemotherapy with minimal side effects to treat CML (chronic myeloid leukemia) malignancies.
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Affiliation(s)
- Madhu B Sura
- Centre for Natural Products and Traditional Knowledge , Indian Institute of Chemical Technology , Hyderabad 500007 , India
- Academy of Scientific and Innovative Research (AcSIR), CSIR-Indian Institute of Chemical Technology (CSIR-IICT) Campus , Hyderabad 500007 , India
| | - Mangala G Ponnapalli
- Centre for Natural Products and Traditional Knowledge , Indian Institute of Chemical Technology , Hyderabad 500007 , India
- Academy of Scientific and Innovative Research (AcSIR), CSIR-Indian Institute of Chemical Technology (CSIR-IICT) Campus , Hyderabad 500007 , India
| | - S Ch V A Rao Annam
- Centre for Natural Products and Traditional Knowledge , Indian Institute of Chemical Technology , Hyderabad 500007 , India
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Chen W, Zeng J, Liao Z, Teng S, Xiao X, Meng L, Wan Q. Mechanism investigations of the activation process of S-2-[(propan-2-yl)sulfinyl]benzyl (SPSB) glycosides. J Carbohydr Chem 2019. [DOI: 10.1080/07328303.2018.1541998] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Wei Chen
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Jing Zeng
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Zhiwen Liao
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Shuang Teng
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Xiong Xiao
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Lingkui Meng
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Qian Wan
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Huazhong University of Science and Technology, Wuhan, Hubei, China
- Institute of Brain Research, Huazhong University of Science and Technology, Wuhan, Hubei, China
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Asaro F, Drioli S, Forzato C, Nitti P. An Efficient Synthesis of Chiral Non‐Racemic Hydroxyalkanoic Acids by Olefin Cross‐Metathesis Reactions. ChemistrySelect 2018. [DOI: 10.1002/slct.201802989] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Fioretta Asaro
- Dipartimento di Scienze Chimiche e FarmaceuticheUniversità di Trieste via Licio Giorgieri 1 34127 Trieste Italy
| | - Sara Drioli
- Dipartimento di Scienze Chimiche e FarmaceuticheUniversità di Trieste via Licio Giorgieri 1 34127 Trieste Italy
| | - Cristina Forzato
- Dipartimento di Scienze Chimiche e FarmaceuticheUniversità di Trieste via Licio Giorgieri 1 34127 Trieste Italy
| | - Patrizia Nitti
- Dipartimento di Scienze Chimiche e FarmaceuticheUniversità di Trieste via Licio Giorgieri 1 34127 Trieste Italy
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17
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Wang WQ, Liu SS, Song WB, Li J, Xuan LJ. Resin glycosides from the seeds of Ipomoea muricata and their multidrug resistance reversal activities. PHYTOCHEMISTRY 2018; 149:24-30. [PMID: 29448078 DOI: 10.1016/j.phytochem.2018.01.020] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Revised: 01/25/2018] [Accepted: 01/28/2018] [Indexed: 06/08/2023]
Abstract
Resin glycosides represent an important chemotaxonomic marker of the Convolvulaceae family and possess multidrug resistance (MDR) reversal activity. In our recent study, nine previously undescribed resin glycosides, Calonyctins B-J, were isolated from the seeds of Ipomoea muricata. Their structures with the absolute configuration were established on the basis of comprehensive spectroscopic analysis and chemical methods. Among these, Calonyctins F-I possessed a skeleton in which the aglycone moiety and the oligosaccharide core were linked by a 3-hydroxy-2-methylbutanoic acid moiety to form a 25-membered macrocyclic structure. Calonyctins E, J, and muricatic acid C methyl ester were non-cytotoxic but enhanced the cytotoxicity of vincristine by 2.5-407.1 fold at 25 μM in KB/VCR cells. Calonyctin E was the most active one.
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Affiliation(s)
- Wen-Qiong Wang
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 501 Haike Road, Zhangjiang Hi-Tech Park, Shanghai 201203, PR China
| | - Shan-Shan Liu
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 501 Haike Road, Zhangjiang Hi-Tech Park, Shanghai 201203, PR China
| | - Wei-Bin Song
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 501 Haike Road, Zhangjiang Hi-Tech Park, Shanghai 201203, PR China
| | - Jun Li
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 501 Haike Road, Zhangjiang Hi-Tech Park, Shanghai 201203, PR China
| | - Li-Jiang Xuan
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 501 Haike Road, Zhangjiang Hi-Tech Park, Shanghai 201203, PR China.
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18
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Rodriguez J, O'Neill S, Walczak MA. Constrained saccharides: a review of structure, biology, and synthesis. Nat Prod Rep 2018. [PMID: 29513338 DOI: 10.1039/c7np00050b] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Review primarily covers from 1995-2018Carbohydrate function, recognized in a multitude of biological processes, provides a precedent for developing carbohydrate surrogates that mimic the structure and function of bioactive compounds. In order to constrain highly flexible oligosaccharides, synthetic tethering techniques like those exemplified by stapled peptides are utilized to varying degrees of success. Naturally occurring constrained carbohydrates, however, exist with noteworthy cytotoxic and chemosensitizing properties. This review highlights the structure, biology, and synthesis of this intriguing class of molecules.
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Affiliation(s)
- Jacob Rodriguez
- Department of Chemistry and Biochemistry, University of Colorado 215 UCB, Boulder, CO 80309, USA.
| | - Sloane O'Neill
- Department of Chemistry and Biochemistry, University of Colorado 215 UCB, Boulder, CO 80309, USA.
| | - Maciej A Walczak
- Department of Chemistry and Biochemistry, University of Colorado 215 UCB, Boulder, CO 80309, USA.
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19
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Vitamin K enhances the effect of antibiotics inhibiting the efflux pumps of Staphylococcus aureus strains. Med Chem Res 2017. [DOI: 10.1007/s00044-017-2063-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Sharma A, Flores-Vallejo RDC, Cardoso-Taketa A, Villarreal ML. Antibacterial activities of medicinal plants used in Mexican traditional medicine. JOURNAL OF ETHNOPHARMACOLOGY 2017; 208:264-329. [PMID: 27155134 DOI: 10.1016/j.jep.2016.04.045] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2015] [Revised: 04/24/2016] [Accepted: 04/25/2016] [Indexed: 05/17/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE We provide an extensive summary of the in vitro antibacterial properties of medicinal plants popularly used in Mexico to treat infections, and we discuss the ethnomedical information that has been published for these species. MATERIALS AND METHODS We carried out a bibliographic investigation by analyzing local and international peer-reviewed papers selected by consulting internationally accepted scientific databases from 1995 to 2014. We provide specific information about the evaluated plant parts, the type of extracts, the tested bacterial strains, and the inhibitory concentrations for each one of the species. We recorded the ethnomedical information for the active species, as well as their popular names and local distribution. Information about the plant compounds that has been identified is included in the manuscript. This review also incorporates an extensive summary of the available toxicological reports on the recorded species, as well as the worldwide registries of plant patents used for treating bacterial infections. In addition, we provide a list with the top plant species with antibacterial activities in this review RESULTS: We documented the in vitro antibacterial activities of 343 plant species pertaining to 92 botanical families against 72 bacterial species, focusing particularly on Staphylococcus aureus, Mycobacterium tuberculosis, Escherichia coli and Pseudomonas aeruginosa. The plant families Asteraceae, Fabaceae, Lamiaceae and Euphorbiaceae included the largest number of active species. Information related to popular uses reveals that the majority of the plants, in addition to treating infections, are used to treat other conditions. The distribution of Mexican plants extended from those that were reported to grow in just one state to those that grow in all 32 Mexican states. From 75 plant species, 225 compounds were identified. Out of the total plant species, only 140 (40.57%) had at least one report about their toxic effects. From 1994 to July 2014 a total of 11,836 worldwide antibacterial patents prepared from different sources were recorded; only 36 antibacterial patents from plants were registered over the same time period. We offered some insights on the most important findings regarding the antibacterial effects, current state of the art, and research perspectives of top plant species with antibacterial activities in vitro. CONCLUSIONS Studies of the antibacterial in vitro activity of medicinal plants popularly used in Mexico to treat infections indicate that both the selection of plant material and the investigation methodologies vary. Standardized experimental procedures as well as in vivo pharmacokinetic studies to document the effectiveness of plant extracts and compounds are necessary. This review presents extensive information about the medicinal plants possessing antibacterial activity that has been scientifically studied and are popularly used in Mexico. We anticipate that this review will be of use for future studies because it constitutes a valuable information tool for selecting the most significant plants and their potential antibacterial properties.
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Affiliation(s)
- Ashutosh Sharma
- Escuela de Ingeniería en Alimentos, Biotecnología y Agronomía (ESIABA), Tecnológico de Monterrey, Campus Querétaro, México
| | - Rosario Del Carmen Flores-Vallejo
- Centro de Investigación en Biotecnología, Universidad Autónoma del Estado de Morelos, Avenida Universidad 1001, Col. Chamilpa, Cuernavaca Morelos 62209, México
| | - Alexandre Cardoso-Taketa
- Centro de Investigación en Biotecnología, Universidad Autónoma del Estado de Morelos, Avenida Universidad 1001, Col. Chamilpa, Cuernavaca Morelos 62209, México
| | - María Luisa Villarreal
- Centro de Investigación en Biotecnología, Universidad Autónoma del Estado de Morelos, Avenida Universidad 1001, Col. Chamilpa, Cuernavaca Morelos 62209, México
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Yu BW, Sun JJ, Pan JT, Wu XH, Yin YQ, Yan YS, Hu JY. Four Pentasaccharide Resin Glycosides from Argyreia acuta. MOLECULES (BASEL, SWITZERLAND) 2017; 22:molecules22030440. [PMID: 28287471 PMCID: PMC6155385 DOI: 10.3390/molecules22030440] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/07/2017] [Revised: 02/27/2017] [Accepted: 03/02/2017] [Indexed: 11/23/2022]
Abstract
Four pentasaccharide resin glycosides, acutacoside F–I (1–4), were isolated from the aerial parts of Argyreia acuta. These compounds were characterized as a group of macrolactones of operculinic acid A, and their lactonization site of 11S-hydroxyhexadecanoic acid was esterified at the second saccharide moiety (Rhamnose) at C-2. The absolute configuration of the aglycone was S. Their structures were elucidated by established spectroscopic and chemical methods.
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Affiliation(s)
- Bang-Wei Yu
- School of Traditional Chinese Medicinal Chemistry, Guangdong Pharmaceutical University, Guangzhou 510006, China.
| | - Jing-Jing Sun
- School of Traditional Chinese Medicinal Chemistry, Guangdong Pharmaceutical University, Guangzhou 510006, China.
| | - Jie-Tao Pan
- School of Traditional Chinese Medicinal Chemistry, Guangdong Pharmaceutical University, Guangzhou 510006, China.
| | - Xiu-Hong Wu
- National TCM Key Lab of Serum Pharmacochemistry, Heilongjiang University of Chinese Medicine, Heping Road 24, Harbin 150040, China.
| | - Yong-Qin Yin
- School of Traditional Chinese Medicinal Chemistry, Guangdong Pharmaceutical University, Guangzhou 510006, China.
| | - You-Shao Yan
- School of Traditional Chinese Medicinal Chemistry, Guangdong Pharmaceutical University, Guangzhou 510006, China.
| | - Jia-Yan Hu
- School of Traditional Chinese Medicinal Chemistry, Guangdong Pharmaceutical University, Guangzhou 510006, China.
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22
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León-Rivera I, Del Río-Portilla F, Enríquez RG, Rangel-López E, Villeda J, Rios MY, Navarrete-Vázquez G, Hurtado-Días I, Guzmán-Valdivieso U, Núñez-Urquiza V, Escobedo-Martínez C. Hepta-, hexa-, penta-, tetra-, and trisaccharide resin glycosides from three species of Ipomoea and their antiproliferative activity on two glioma cell lines. MAGNETIC RESONANCE IN CHEMISTRY : MRC 2017; 55:214-223. [PMID: 27370528 DOI: 10.1002/mrc.4476] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2016] [Revised: 06/17/2016] [Accepted: 06/23/2016] [Indexed: 06/06/2023]
Abstract
Six new partially acylated resin glycosides were isolated from convolvulin of Ipomoea purga, Ipomoea stans, and Ipomoea murucoides (Convolvulaceae). The structures of compounds 1-6 were elucidated by a combination of NMR spectroscopy and mass spectrometry. The structure of jalapinoside B (1) consists of a hexasaccharide core bonded to an 11-hydroxytetradecanoic (convolvulinic) acid forming a macrolactone acylated by a 2-methylbutanoyl, a 3-hydroxy-2-methylbutanoyl, and a quamoclinic acid B units. Purginoic acid A (2) contains a hexasaccharide core bonded to a convolvulinic acid acylated by a 3-hydroxy-2-methylbutanoyl unit. Stansin A (4) is an ester-type heterodimer, and consists of two stansoic acid A (3) units, acylated by 2-methylbutanoic and 3-hydroxy-2-methylbutanoic acids. The site of lactonization was located at C-3 of Rhamnose, and the position for the ester linkage of the monomeric unit B on the macrolactone unit A was established as C-4 of the terminal rhamnose. Compounds 5 and 6 are glycosidic acids. Murucinic acid II (5) is composed of a pentasaccharide core bonded to an 11-hydroxyhexadecanoic (jalapinolic) acid, acylated by an acetyl unit. Stansinic acid I (6) is a tetrasaccharide core bonded to a jalapinolic acid, acylated by 2-methylbutanoyl and 3-hydroxy-2-methylbutanoyl units. Preliminary testing showed the cytotoxicity of compounds 1-6 toward OVCAR and UISO-SQC-1 cancer cell lines. In addition, compound 1 showed an antiproliferative activity on glioma C6 and RG2 tumor cell lines. Copyright © 2016 John Wiley & Sons, Ltd.
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Affiliation(s)
- Ismael León-Rivera
- Centro de Investigaciones Químicas, IICBA, Universidad Autónoma del Estado de Morelos, Cuernavaca, Morelos, Estados Unidos Mexicanos
| | - Federico Del Río-Portilla
- Instituto de Química, Universidad Nacional Autónoma de México, Ciudad de México, Estados Unidos Mexicanos
| | - Raúl G Enríquez
- Instituto de Química, Universidad Nacional Autónoma de México, Ciudad de México, Estados Unidos Mexicanos
| | - Edgar Rangel-López
- Laboratorio de Amino Ácidos Excitadores, Instituto Nacional de Neurología y Neurocirugía, Ciudad de México, Estados Unidos Mexicanos
| | - Juana Villeda
- Laboratorio de Patología, Instituto Nacional de Neurología y Neurocirugía, Ciudad de México, Estados Unidos Mexicanos
| | - María Yolanda Rios
- Centro de Investigaciones Químicas, IICBA, Universidad Autónoma del Estado de Morelos, Cuernavaca, Morelos, Estados Unidos Mexicanos
| | - Gabriel Navarrete-Vázquez
- Facultad de Farmacia, Universidad Autónoma del Estado de Morelos, Cuernavaca, Morelos, Estados Unidos Mexicanos
| | - Israel Hurtado-Días
- Centro de Investigaciones Químicas, IICBA, Universidad Autónoma del Estado de Morelos, Cuernavaca, Morelos, Estados Unidos Mexicanos
| | - Ulises Guzmán-Valdivieso
- Centro de Investigaciones Químicas, IICBA, Universidad Autónoma del Estado de Morelos, Cuernavaca, Morelos, Estados Unidos Mexicanos
| | - Verónica Núñez-Urquiza
- Centro de Investigaciones Químicas, IICBA, Universidad Autónoma del Estado de Morelos, Cuernavaca, Morelos, Estados Unidos Mexicanos
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23
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Li J, Wang WQ, Tang S, Song WB, Huang M, Xuan LJ. Pentasaccharide resin glycosides with multidrug resistance reversal activities from the seeds of Pharbitis nil. RSC Adv 2017. [DOI: 10.1039/c7ra09026a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Pharbitins A–G (1–7) were isolated from the seeds of Pharbitis nil; 2 showed MDR reversal activity via inhibition of P-gp.
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Affiliation(s)
- Jun Li
- State Key Laboratory of Drug Research
- Shanghai Institute of Meteria Medica
- Chinese Academy of Sciences
- Shanghai 201201
- People's Republic of China
| | - Wen-Qiong Wang
- State Key Laboratory of Drug Research
- Shanghai Institute of Meteria Medica
- Chinese Academy of Sciences
- Shanghai 201201
- People's Republic of China
| | - Shuai Tang
- State Key Laboratory of Drug Research
- Shanghai Institute of Meteria Medica
- Chinese Academy of Sciences
- Shanghai 201201
- People's Republic of China
| | - Wei-Bin Song
- State Key Laboratory of Drug Research
- Shanghai Institute of Meteria Medica
- Chinese Academy of Sciences
- Shanghai 201201
- People's Republic of China
| | - Min Huang
- State Key Laboratory of Drug Research
- Shanghai Institute of Meteria Medica
- Chinese Academy of Sciences
- Shanghai 201201
- People's Republic of China
| | - Li-Jiang Xuan
- State Key Laboratory of Drug Research
- Shanghai Institute of Meteria Medica
- Chinese Academy of Sciences
- Shanghai 201201
- People's Republic of China
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Cruz-Morales S, Castañeda-Gómez J, Rosas-Ramírez D, Fragoso-Serrano M, Figueroa-González G, Lorence A, Pereda-Miranda R. Resin Glycosides from Ipomoea alba Seeds as Potential Chemosensitizers in Breast Carcinoma Cells. JOURNAL OF NATURAL PRODUCTS 2016; 79:3093-3104. [PMID: 28006904 DOI: 10.1021/acs.jnatprod.6b00782] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Multidrug resistance is the expression of one or more efflux pumps, such as P-glycoprotein, and is a major obstacle in cancer therapy. The use of new potent and noncytotoxic efflux pump modulators, coadministered with antineoplastic agents, is an alternative approach for increasing the success rate of therapy regimes with different drug combinations. This report describes the isolation and structure elucidation of six new resin glycosides from moon vine seeds (Ipomoea alba) as potential mammalian multidrug-resistance-modifying agents. Albinosides IV-IX (1-6), along with the known albinosides I-III (7-9), were purified from the CHCl3-soluble extract. Degradative chemical reactions in combination with NMR spectroscopy and mass spectrometry were used for their structural elucidation. Four new glycosidic acids, albinosinic acids D-G (10-13), were released by saponification of natural products 3-6. They were characterized as tetrasaccharides of either convolvulinolic (11S-hydroxytetradecanoic) or jalapinolic (11S-hydroxyhexadecanoic) acids. The potentiation of vinblastine susceptibility in multidrug-resistant human breast carcinoma cells of albinosides 1-6 was evaluated by modulation assays. The noncytotoxic albinosides VII (4) and VIII (5), at a concentration of 25 μg/mL, exerted the strongest potentiation of vinblastine susceptibility, with a reversal factor (RFMCF-7/Vin+) of 201- and >2517-fold, respectively.
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Affiliation(s)
| | - Jhon Castañeda-Gómez
- Grupo Químico de Investigación y Desarrollo Ambiental, Programa de Licenciatura en Ciencias, Facultad de Educación, Universidad Surcolombiana , Neiva, Colombia
| | | | | | - Gabriela Figueroa-González
- Laboratorio de Genómica, Unidad de Investigación Básica, Instituto Nacional de Cancerología , 14080, Mexico City, Mexico
| | - Argelia Lorence
- Arkansas Biosciences Institute and Department of Chemistry and Physics, Arkansas State University , P.O. Box 639, Jonesboro, Arkansas 72467, United States
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25
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Tintino SR, Morais-Tintino CD, Campina FF, Pereira RL, Costa MDS, Braga MFBM, Limaverde PW, Andrade JC, Siqueira-Junior JP, Coutinho HDM, Balbino VQ, Leal-Balbino TC, Ribeiro-Filho J, Quintans-Júnior LJ. Action of cholecalciferol and alpha-tocopherol on Staphylococcus aureus efflux pumps. EXCLI JOURNAL 2016; 15:315-22. [PMID: 27298617 PMCID: PMC4897629 DOI: 10.17179/excli2016-277] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/23/2016] [Accepted: 04/19/2016] [Indexed: 01/12/2023]
Abstract
Alpha-tocopherol is one the most abundant and biologically active isoforms of vitamin E. This compound is a potent antioxidant and one of most studied isoforms of vitamin E. Vitamin D3 (cholecalciferol) is an important nutrient for calcium homeostasis and bone health, that has also been recognized as a potent modulator of the immune response. Methicillin-resistant Staphylococcus aureus (MRSA) is the most important causative agent of both nosocomial and community-acquired infections. The aim of this study was to evaluate the inhibitory effect of alpha-tocopherol and cholecalciferol on both S. aureus and multidrug resistant S. aureus efflux pumps. The RN4220 strain has the plasmid pUL5054 that is the carrier of gene that encodes the macrolide resistance protein (an efflux pump) MsrA; the IS-58 strain possesses the TetK tetracycline efflux protein in its genome and the 1199B strain resists to hydrophilic fluoroquinolones via a NorA-mediated mechanism. The antibacterial activity was evaluated by determining the Minimal Inhibitory Concentration (MIC) and a possible inhibition of efflux pumps was associated to a reduction of the MIC. In this work we observed that in the presence of the treatments there was a decrease in the MIC for the RN4220 and IS-58 strains, suggesting that the substances presented an inhibitory effect on the efflux pumps of these strains. Significant efforts have been done to identify efflux pump inhibitors (EPIs) from natural sources and, therefore, the antibacterial properties of cholecalciferol and alpha-tocopherol might be attributed to a direct effect on the bacterial cell depending on their amphipathic structure.
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Affiliation(s)
- Saulo R Tintino
- Laboratory of Microbiology and Molecular Biology (LMBM), Department of Biological Chemistry/CCBS/URCA, Brazil
| | - Cícera D Morais-Tintino
- Laboratory of Microbiology and Molecular Biology (LMBM), Department of Biological Chemistry/CCBS/URCA, Brazil
| | - Fábia F Campina
- Laboratory of Microbiology and Molecular Biology (LMBM), Department of Biological Chemistry/CCBS/URCA, Brazil
| | - Raimundo L Pereira
- Laboratory of Microbiology and Molecular Biology (LMBM), Department of Biological Chemistry/CCBS/URCA, Brazil
| | - Maria do S Costa
- Laboratory of Microbiology and Molecular Biology (LMBM), Department of Biological Chemistry/CCBS/URCA, Brazil
| | - Maria Flaviana B M Braga
- Laboratory of Microbiology and Molecular Biology (LMBM), Department of Biological Chemistry/CCBS/URCA, Brazil
| | - Paulo W Limaverde
- Laboratory of Microbiology and Molecular Biology (LMBM), Department of Biological Chemistry/CCBS/URCA, Brazil
| | - Jacqueline C Andrade
- Laboratory of Microbiology and Molecular Biology (LMBM), Department of Biological Chemistry/CCBS/URCA, Brazil
| | - José P Siqueira-Junior
- Laboratory of Microrganism Genetics (LGM), Department of Molecular Biology/CCEN/UFPB, Brazil
| | | | - Valdir Q Balbino
- Laboratory of Bioinformatics and Evolutionary Biology (LABBE), Department of Genetics/ CCB/UFPE, Brazil
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26
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Corona-Castañeda B, Rosas-Ramírez D, Castañeda-Gómez J, Aparicio-Cuevas MA, Fragoso-Serrano M, Figueroa-González G, Pereda-Miranda R. Resin glycosides from Ipomoea wolcottiana as modulators of the multidrug resistance phenotype in vitro. PHYTOCHEMISTRY 2016; 123:48-57. [PMID: 26774597 DOI: 10.1016/j.phytochem.2016.01.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2015] [Revised: 12/18/2015] [Accepted: 01/04/2016] [Indexed: 06/05/2023]
Abstract
Recycling liquid chromatography was used for the isolation and purification of resin glycosides from the CHCl3-soluble extracts prepared using flowers of Ipomoea wolcottiana Rose var. wolcottiana. Bioassay-guided fractionation, using modulation of both antibiotic activity against multidrug-resistant strains of Gram-negative bacteria and vinblastine susceptibility in breast carcinoma cells, was used to isolate the active glycolipids as modulators of the multidrug resistance phenotype. An ester-type dimer, wolcottine I, one tetra- and three pentasaccharides, wolcottinosides I-IV, in addition to the known intrapilosin VII, were characterized by NMR spectroscopy and mass spectrometry. In vitro assays established that none of these metabolites displayed antibacterial activity (MIC>512 μg/mL) against multidrug-resistant strains of Escherichia coli, and two nosocomial pathogens: Salmonella enterica serovar Typhi and Shigella flexneri; however, when tested (25 μg/mL) in combination with tetracycline, kanamycin or chloramphenicol, they exerted a potentiation effect of the antibiotic susceptibility up to eightfold (64 μg/mL from 512 μg/mL). It was also determined that these non-cytotoxic (CI50>8.68 μM) agents modulated vinblastine susceptibility at 25 μg/mL in MFC-7/Vin(+) cells with a reversal factor (RFMCF-7/Vin(+)) of 2-130 fold.
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Affiliation(s)
- Berenice Corona-Castañeda
- Departamento de Farmacia, Facultad de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria, 04510 DF, Mexico
| | - Daniel Rosas-Ramírez
- Departamento de Química de Biomacromoléculas, Instituto de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria, 04510 DF, Mexico
| | - Jhon Castañeda-Gómez
- Grupo Químico de Investigación y Desarrollo Ambiental, Facultad de Ciencias y Tecnologías, Universidad del Quindío, Armenia, Colombia
| | | | - Mabel Fragoso-Serrano
- Departamento de Farmacia, Facultad de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria, 04510 DF, Mexico
| | - Gabriela Figueroa-González
- Departamento de Farmacia, Facultad de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria, 04510 DF, Mexico
| | - Rogelio Pereda-Miranda
- Departamento de Farmacia, Facultad de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria, 04510 DF, Mexico.
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Liger F, Bouhours P, Ganem-Elbaz C, Jolivalt C, Pellet-Rostaing S, Popowycz F, Paris JM, Lemaire M. C2 Arylated Benzo[b]thiophene Derivatives asStaphylococcus aureusNorA Efflux Pump Inhibitors. ChemMedChem 2016; 11:320-30. [DOI: 10.1002/cmdc.201500463] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2015] [Indexed: 11/11/2022]
Affiliation(s)
- François Liger
- Equipe Catalyse Synthèse Environnement; CNRS-UMR 5246; L'Institut de Chimie et Biochimie Moléculaires et Supramoléculaires (ICBMS); 43 Bd. du 11 novembre 1918 69622 Villeurbanne France
| | - Pascale Bouhours
- Laboratoire Charles Friedel; CNRS-UMR 7223; Chimie ParisTech; 11 rue Pierre et Marie Curie 75005 Paris France
| | - Carine Ganem-Elbaz
- Laboratoire Charles Friedel; CNRS-UMR 7223; Chimie ParisTech; 11 rue Pierre et Marie Curie 75005 Paris France
| | - Claude Jolivalt
- Laboratoire Charles Friedel; CNRS-UMR 7223; Chimie ParisTech; 11 rue Pierre et Marie Curie 75005 Paris France
| | - Stéphane Pellet-Rostaing
- Equipe Catalyse Synthèse Environnement; CNRS-UMR 5246; L'Institut de Chimie et Biochimie Moléculaires et Supramoléculaires (ICBMS); 43 Bd. du 11 novembre 1918 69622 Villeurbanne France
| | - Florence Popowycz
- Institut National des Sciences Appliquées de Lyon; ICBMS, CNRS-UMR 5246, Equipe Chimie Organique et Bioorganique; 20 Avenue Albert Einstein 69621 Villeurbanne France
| | - Jean-Marc Paris
- Laboratoire Charles Friedel; CNRS-UMR 7223; Chimie ParisTech; 11 rue Pierre et Marie Curie 75005 Paris France
| | - Marc Lemaire
- Equipe Catalyse Synthèse Environnement; CNRS-UMR 5246; L'Institut de Chimie et Biochimie Moléculaires et Supramoléculaires (ICBMS); 43 Bd. du 11 novembre 1918 69622 Villeurbanne France
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Rosas-Ramírez D, Pereda-Miranda R. Batatins VIII-XI, glycolipid ester-type dimers from Ipomoea batatas. JOURNAL OF NATURAL PRODUCTS 2015; 78:26-33. [PMID: 25531152 DOI: 10.1021/np500523w] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Sweet potato (Ipomoea batatas) is native to the tropics of Central and South America, where many varieties have been consumed for more that 5000 years. In developing countries, this crop is a recognized effective food for fighting malnutrition. Purification of the minor lipophilic glicolipids found in the n-hexane-soluble resin glycosides from the white-skinned variety was performed by preparative-scale recycling HPLC. Application of column overload, peak shaving, heart cutting, and recycling techniques permitted the purification of four new oligosaccharide ester-type dimer derivatives of jalapinolic acid, batatins VIII-XI (1-4). The structural characterization of these complex lipo-oligosaccharides was performed through NMR spectroscopy and MS, indicating that batatins VIII-XI (1-4) possess an oligomeric structure consisting of two pentasaccharide units of the known simonic acid B.
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Affiliation(s)
- Daniel Rosas-Ramírez
- Facultad de Química, Universidad Nacional Autónoma de México , Ciudad Universitaria, Mexico City 04510 DF, Mexico
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Bautista E, Fragoso-Serrano M, Pereda-Miranda R. Jalapinoside, a macrocyclic bisdesmoside from the resin glycosides of Ipomea purga, as a modulator of multidrug resistance in human cancer cells. JOURNAL OF NATURAL PRODUCTS 2015; 78:168-172. [PMID: 25536852 DOI: 10.1021/np500762w] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The first macrocyclic bisdesmoside resin glycoside, jalapinoside (4), was purified by preparative-scale recycling HPLC from the MeOH-soluble extracts of Ipomoea purga roots, the officinal jalap. Purgic acid C (3), a new glycosidic acid of ipurolic acid, was identified as 3-O-β-d-quinovopyranoside, 11-O-β-d-quinovopyranosyl-(1→2)-O-β-d-glucopyranosyl-(1→3)-O-[β-d-fucopyranosyl-(1→4)]-O-α-l-rhamnopyranosyl-(1→2)-O-β-d-glucopyranosyl-(1→2)-O-β-d-quinovopyranoside (3S,11S)-dihydroxytetradecanoic acid. The acylating residues of this core were acetic, (+)-(2S)-methylbutanoic, and dodecanoic acids. The site of lactonization was defined as C-3 of the second saccharide moiety. Reversal of multidrug resistance by this noncytotoxic compound was evaluated in vinblastine-resistant human breast carcinoma cells.
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Affiliation(s)
- Elihú Bautista
- Departamento de Farmacia, Facultad de Química, Universidad Nacional Autónoma de México , Mexico City, 04510 DF, Mexico
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Huang H, Yang CS, Zeng LN, Zhang LL. Synthesis of key macrolactone structure of resin glycosides using a Keck macrolactonization method. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2015; 17:289-298. [PMID: 25566886 DOI: 10.1080/10286020.2014.998653] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
We present in this paper the efficient synthesis of three macrocyclic lactone units which are core structures of natural resin glycosides by the use of a Keck macrolactonization approach.
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Affiliation(s)
- Hong Huang
- a Department of Pharmacy, Evidence-Based Pharmacy Center , West China Second University Hospital, Sichuan University , Chengdu 610041 , China
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Song WB, Wang WQ, Zhang SW, Xuan LJ. Multidrug resistance-reversal effects of resin glycosides from Dichondra repens. Bioorg Med Chem Lett 2015; 25:795-8. [PMID: 25597010 DOI: 10.1016/j.bmcl.2014.12.083] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2014] [Revised: 12/18/2014] [Accepted: 12/26/2014] [Indexed: 10/24/2022]
Abstract
Investigation of hydrophobic extract of Dichondra repens (Convolvulaceae) led to the isolation of three new resin glycosides dichondrins A-C (1-3), and three known resin glycosides cus-1, cus-2, and cuse 3. All the isolated resin glycosides with an acyclic core were evaluated for their multidrug resistance reversal activities, and the combined use of these compounds at a concentration of 25μM increased the cytotoxicity of vincristine by 1.03-1.78-fold.
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Affiliation(s)
- Wei-Bin Song
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 501 Haike Road, Zhangjiang Hi-Tech Park, Shanghai 201203, People's Republic of China
| | - Wen-Qiong Wang
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 501 Haike Road, Zhangjiang Hi-Tech Park, Shanghai 201203, People's Republic of China
| | - Shu-Wei Zhang
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 501 Haike Road, Zhangjiang Hi-Tech Park, Shanghai 201203, People's Republic of China
| | - Li-Jiang Xuan
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 501 Haike Road, Zhangjiang Hi-Tech Park, Shanghai 201203, People's Republic of China.
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Wang WQ, Song WB, Lan XJ, Huang M, Xuan LJ. Merremins A-G, resin glycosides from Merremia hederacea with multidrug resistance reversal activity. JOURNAL OF NATURAL PRODUCTS 2014; 77:2234-2240. [PMID: 25310730 DOI: 10.1021/np500483d] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Five new pentasaccharide resin glycosides, named merremins A-E (1-5), two new pentasaccharide resin glycoside methyl esters, named merremins F and G (6, 7), and four known resin glycosides, murucoidin IV, murucoidin V, stoloniferin IV, and murucoidin XVII, were obtained from the aerial parts of Merremia hederacea. This is the first report of resin glycosides obtained from M. hederacea. In addition, the new compounds can be divided into three types: those possessing an 18-membered ring (1-4), compound 5 with a 20-membered ring, and those with an acyclic core (6, 7). Furthermore, the different types of resin glycosides were evaluated for their multidrug resistance reversal activities. Compounds 1, 5, 6, and murucoidin V were noncytotoxic and enhanced the cytotoxicity of vinblastine by 2.3-142.5-fold at 25 μM. Compound 5 and murucoidin V, with 20-membered rings, were more active than compound 1, with an 18-membered ring.
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Affiliation(s)
- Wen-qiong Wang
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences , 555 Zuchongzhi Road, Zhangjiang Hi-Tech Park, Shanghai, 201203, People's Republic of China
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Upadhyay A, Upadhyaya I, Kollanoor-Johny A, Venkitanarayanan K. Combating pathogenic microorganisms using plant-derived antimicrobials: a minireview of the mechanistic basis. BIOMED RESEARCH INTERNATIONAL 2014; 2014:761741. [PMID: 25298964 PMCID: PMC4178913 DOI: 10.1155/2014/761741] [Citation(s) in RCA: 92] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/25/2014] [Revised: 08/05/2014] [Accepted: 08/08/2014] [Indexed: 12/19/2022]
Abstract
The emergence of antibiotic resistance in pathogenic bacteria has led to renewed interest in exploring the potential of plant-derived antimicrobials (PDAs) as an alternative therapeutic strategy to combat microbial infections. Historically, plant extracts have been used as a safe, effective, and natural remedy for ailments and diseases in traditional medicine. Extensive research in the last two decades has identified a plethora of PDAs with a wide spectrum of activity against a variety of fungal and bacterial pathogens causing infections in humans and animals. Active components of many plant extracts have been characterized and are commercially available; however, research delineating the mechanistic basis of their antimicrobial action is scanty. This review highlights the potential of various plant-derived compounds to control pathogenic bacteria, especially the diverse effects exerted by plant compounds on various virulence factors that are critical for pathogenicity inside the host. In addition, the potential effect of PDAs on gut microbiota is discussed.
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Affiliation(s)
- Abhinav Upadhyay
- Department of Animal Science, University of Connecticut, 3636 Horsebarn Hill Road Extension, Unit 4040, Storrs, CT 06269, USA
| | - Indu Upadhyaya
- Department of Animal Science, University of Connecticut, 3636 Horsebarn Hill Road Extension, Unit 4040, Storrs, CT 06269, USA
| | - Anup Kollanoor-Johny
- Department of Animal Science, University of Connecticut, 3636 Horsebarn Hill Road Extension, Unit 4040, Storrs, CT 06269, USA
| | - Kumar Venkitanarayanan
- Department of Animal Science, University of Connecticut, 3636 Horsebarn Hill Road Extension, Unit 4040, Storrs, CT 06269, USA
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Fan BY, Luo JG, Gu YC, Kong LY. Unusual ether-type resin glycoside dimers from the seeds of Cuscuta chinensis. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.01.068] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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Abstract
Natural compounds occur as various isomeric or closely related structures in biological matrices. These compounds are difficult to separate from the complex mixtures, and hence, the need for effective and innovative separation techniques arises. Recycle HPLC allows the recycling of sample, in part or full, and increases the separation efficiency of the process while keeping the peak dispersion to a minimum. Recycling in an HPLC system has been used in the isolation and purification of different types of natural products including enantiomers, diastereomers, epimers, positional isomers, and structurally related or unrelated compounds having similar retention characteristics. The present paper overviews the development of instrumentation and setup of recycle HPLC and its applications in the separation of natural products.
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Corona-Castañeda B, Chérigo L, Fragoso-Serrano M, Gibbons S, Pereda-Miranda R. Modulators of antibiotic activity from Ipomoea murucoides. PHYTOCHEMISTRY 2013; 95:277-283. [PMID: 23920226 DOI: 10.1016/j.phytochem.2013.07.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2013] [Revised: 07/07/2013] [Accepted: 07/10/2013] [Indexed: 06/02/2023]
Abstract
Reinvestigation of the CHCl3-soluble extract from the flowers of Ipomoea murucoides, through preparative-scale recycling HPLC, yielded three pentasaccharides of 11-hydroxyhexadecanoic acid, murucoidins XVII-XIX, in addition to the known murucoidin III and V, all of which were characterized by NMR spectroscopy and mass spectrometry. These compounds were found to be macrolactones of the known pentasaccharides simonic acid B and operculinic acid A. The acylating groups corresponded to acetic, (2S)-methyl-butyric, (E)-cinnamic and octanoic acids. The esterification sites were established at the C-2 of the second rhamnose and C-3 and C-4 of the third rhamnose. The aglycone lactonization was placed at C-2 or C-3 of the first rhamnose. Bioassays for modulation of antibiotic activity were performed against multidrug-resistant strains of Staphylococcus aureus, Escherichia coli Rosetta-gami, and two nosocomial pathogens: Salmonella enterica sv. Typhi and Shigella flexneri. The tested glycolipids did not act as cytotoxic (IC50>4 μg/mL) nor as antimicrobial (MIC>128 μg/mL) agents. However, they exerted a potentiation effect on clinically useful antibiotics against the tested bacteria by increasing their antibiotic susceptibility up to four-fold at concentrations of 25 μg/mL.
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Affiliation(s)
- Berenice Corona-Castañeda
- Departamento de Farmacia, Facultad de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria, Mexico City 04510DF, Mexico
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Yu B, Luo J, Wang J, Zhang D, Yu S, Kong L. Pentasaccharide resin glycosides from Ipomoea cairica and their cytotoxic activities. PHYTOCHEMISTRY 2013; 95:421-427. [PMID: 23954073 DOI: 10.1016/j.phytochem.2013.07.006] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2012] [Revised: 06/27/2013] [Accepted: 07/08/2013] [Indexed: 06/02/2023]
Abstract
Six partially acylated pentasaccharide resin glycosides, cairicosides A-F, were isolated from the aerial parts of Ipomoea cairica. These compounds were characterized as a group of macrolactones of simonic acid A, partially acylated with different organic acids. The lactonization site of 11S-hydroxyhexadecanoic acid (jalapinolic acid) was bound to the second saccharide moiety at C-3 in cairicosides A-E, while at C-2 in cairicoside F. Structures were established by spectroscopic and chemical methods. Compounds cairicosides A-E exhibited moderate cytotoxicity against a small panel of human tumor cell lines with IC50 values in the range of 4.28-14.31μM.
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Affiliation(s)
- Bangwei Yu
- State Key Laboratory of Natural Medicines, Department of Natural Medicinal Chemistry, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, People's Republic of China; State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, 1 Xian Nong Tan Street, Beijing 100050, People's Republic of China
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Schindler BD, Jacinto P, Kaatz GW. Inhibition of drug efflux pumps in Staphylococcus aureus: current status of potentiating existing antibiotics. Future Microbiol 2013; 8:491-507. [PMID: 23534361 DOI: 10.2217/fmb.13.16] [Citation(s) in RCA: 71] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The emergence of multidrug-resistant Staphylococcus aureus coupled with a declining output of new antibiotic treatment options from the pharmaceutical industry is a growing worldwide healthcare problem. Multidrug efflux pumps are known to play a role in antibiotic and biocide resistance in S. aureus. These membrane transporters are capable of extruding drugs and other structurally unrelated compounds, hence decreasing intracellular concentration and increasing survival. Coadministration of efflux pump inhibitors (EPIs) with antibiotics that are pump substrates could increase intracellular drug levels, thus bringing renewed efficacy to existing antistaphylococcal agents. Numerous EPIs have been identified or synthesized over the past two decades; these include existing pharmacologic drugs, naturally occurring compounds, and synthetic derivatives thereof. This review describes the current progress in EPI development for use against S. aureus.
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Affiliation(s)
- Bryan D Schindler
- John D Dingell Veterans Affairs Medical Center, Wayne State University, Detroit, MI 48201, USA
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Kourtesi C, Ball AR, Huang YY, Jachak SM, Vera DMA, Khondkar P, Gibbons S, Hamblin MR, Tegos GP. Microbial efflux systems and inhibitors: approaches to drug discovery and the challenge of clinical implementation. Open Microbiol J 2013; 7:34-52. [PMID: 23569468 PMCID: PMC3617545 DOI: 10.2174/1874285801307010034] [Citation(s) in RCA: 97] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2012] [Revised: 01/22/2013] [Accepted: 01/23/2013] [Indexed: 12/16/2022] Open
Abstract
Conventional antimicrobials are increasingly ineffective due to the emergence of multidrug-resistance among pathogenic microorganisms. The need to overcome these deficiencies has triggered exploration for novel and unconventional approaches to controlling microbial infections. Multidrug efflux systems (MES) have been a profound obstacle in the successful deployment of antimicrobials. The discovery of small molecule efflux system blockers has been an active and rapidly expanding research discipline. A major theme in this platform involves efflux pump inhibitors (EPIs) from natural sources. The discovery methodologies and the available number of natural EPI-chemotypes are increasing. Advances in our understanding of microbial physiology have shed light on a series of pathways and phenotypes where the role of efflux systems is pivotal. Complementing existing antimicrobial discovery platforms such as photodynamic therapy (PDT) with efflux inhibition is a subject under investigation. This core information is a stepping stone in the challenge of highlighting an effective drug development path for EPIs since the puzzle of clinical implementation remains unsolved. This review summarizes advances in the path of EPI discovery, discusses potential avenues of EPI implementation and development, and underlines the need for highly informative and comprehensive translational approaches.
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Affiliation(s)
- Christina Kourtesi
- Department of Pathology, University of New Mexico, School of Medicine, Albuquerque, NM, USA ; Department of Pathology, Faculty of Medicine, National & Kapodistrian University of Athens, Greece
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Castañeda-Gómez J, Figueroa-González G, Jacobo N, Pereda-Miranda R. Purgin II, a resin glycoside ester-type dimer and inhibitor of multidrug efflux pumps from Ipomoea purga. JOURNAL OF NATURAL PRODUCTS 2013; 76:64-71. [PMID: 23273047 DOI: 10.1021/np300739y] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Reinvestigation of the CHCl(3)-soluble extract from aerial parts of Ipomoea purga was carried out to identify mammalian multidrug-resistance inhibitors. Preparative-scale recycling HPLC was used to purify four new resin glycosides, purgins II (1) and III (2) in addition to purginosides III (3) and IV (4), as well as the known purginosides I (5) and II (6) and purgin I (7). The structures of 1-4 were established through NMR spectroscopy and mass spectrometry. Purgins II (1) and III (2) are the first examples of ester-type dimers of operculinic acid B with three different acylating residues in both monomeric units: (2S)-methylbutyric acid, n-hexanoic, n-decanoic, and trans-cinnamic acids. The macrolactonization site was located at C-2 of the second saccharide unit. The position of the ester linkage for monomeric unit B on the macrocyclic unit A was established as C-4 of the terminal glucose. Purginosides III (3) and IV (4) were found to be pentasaccharides of operculinic acid A with a structure related to that previously described for compounds 5 and 6. Reversal of multidrug resistance by compounds 1-7 was evaluated in vinblastine-resistant human breast carcinoma cells (MCF-7/Vin). Purgin II (1) enhanced vinblastine activity >2140-fold when incorporated at 25 μg/mL. For compounds 2-7, a moderate vinblastine-enhancing activity from 1.4-fold to 6.5-fold was observed.
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Affiliation(s)
- Jhon Castañeda-Gómez
- Departamento de Farmacia, Facultad de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria, Mexico City, 04510, DF, Mexico
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Savoia D. Plant-derived antimicrobial compounds: alternatives to antibiotics. Future Microbiol 2013; 7:979-90. [PMID: 22913356 DOI: 10.2217/fmb.12.68] [Citation(s) in RCA: 234] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
The increasing incidence of drug-resistant pathogens has drawn the attention of the pharmaceutical and scientific communities towards studies on the potential antimicrobial activity of plant-derived substances, an untapped source of antimicrobial chemotypes, which are used in traditional medicine in different countries. The aim of this review is to provide recent insights regarding the possibilities of the most important natural antimicrobial compounds derived from plant sources containing a wide variety of secondary metabolites, which are useful as alternative strategies to control infectious diseases. This review will focus on natural plant products as a useful source of antimicrobial molecules, active in particular, on bacteria and fungi. When considering that many of these compounds, which have been used for centuries, are a source of new drugs and that there are ever-increasing technical breakthroughs, it can be envisaged that in the next years some different molecules discovered by ingenious screening programs and obtained from different plant oils and extracts will become useful therapeutic tools.
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Affiliation(s)
- Dianella Savoia
- Department of Clinical & Biological Sciences, University of Torino, Turin, Italy.
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Cruz-Morales S, Castañeda-Gómez J, Figueroa-González G, Mendoza-García AD, Lorence A, Pereda-Miranda R. Mammalian multidrug resistance lipopentasaccharide inhibitors from Ipomoea alba seeds. JOURNAL OF NATURAL PRODUCTS 2012; 75:1603-1611. [PMID: 22924480 DOI: 10.1021/np300414d] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
As part of an ongoing project to identify inhibitors of multidrug efflux pumps, three new resin glycosides, albinosides I-III (1-3), were isolated from a CHCl(3)-soluble extract from the seeds of moon vine (Ipomoea alba). Their structures were established through NMR spectroscopy and mass spectrometry as partially acylated branched pentasaccharides derived from three new glycosidic acids, named albinosinic acids A-C (4-6). The same oligosaccharide core formed by two D-quinovose, one D-glucose, and two L-rhamnose units was linked to either convolvulinolic or jalapinolic acid for 1 and 3, respectively. They were partially esterified with (2R,3R)-3-hydroxy-2-methylbutanoic, acetic, or 2-methyl-2-butenoic acid. Compound 2 has two D-quinovose and three L-rhamnose units, linked to convolvulinolic acid, and its esterifying residues were characterized as two units of 2-methyl-2-butenoic acid. The aglycone lactonization site was located at C-2 of the terminal rhamnose unit (Rha) for 1, at C-3 of the terminal rhamnose unit (Rha') for 2, and at C-3 of the second saccharide unit (Glc) for 3. Reversal of multidrug resistance by this class of plant metabolites was also evaluated in vinblastine-resistant human breast carcinoma cells (MCF-7/Vin). The noncytotoxic compound 3 exerted the strongest potentiation effect of vinblastine susceptibility to over 2140-fold, while a moderate activity was observed for 1 (3.1-fold) and 2 (2.6-fold) at a concentration of 25 μg/mL.
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Affiliation(s)
- Sara Cruz-Morales
- Departamento de Farmacia, Facultad de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria, Mexico City, 04510 DF, Mexico
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Ding W, Jiang ZH, Wu P, Xu L, Wei X. Resin glycosides from the aerial parts of Operculina turpethum. PHYTOCHEMISTRY 2012; 81:165-174. [PMID: 22717506 DOI: 10.1016/j.phytochem.2012.05.010] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2011] [Revised: 02/02/2012] [Accepted: 05/10/2012] [Indexed: 06/01/2023]
Abstract
Three glycosidic acids, turpethic acids A-C, and two intact resin glycosides, turpethosides A and B, all having a common pentasaccharide moiety and 12-hydroxy fatty acid aglycones of different chain lengths, were obtained from the aerial parts of Operculina turpethum. Their structures were elucidated by spectroscopic analyses and chemical correlations. The aglycones were characterized as 12-hydroxypentadecanoic acid in two compounds, 12-hydroxyhexadecanoic acid in two other components, and 12-hydroxyheptadecanoic acid in the fifth compound, which were all confirmed by synthesis. The absolute configurations of these aglycones were all established as S by Mosher's method. These compounds represent the first examples of resin glycosides with a monohydroxylated 12-hydroxy fatty acid as an aglycone, and one compound is the first described resin glycoside having a hydroxylated C(17) fatty acid as its aglycone.
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Affiliation(s)
- Wenbing Ding
- Key Laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences, Tianhe District, Guangzhou 510650, China
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Holler JG, Slotved HC, Mølgaard P, Olsen CE, Christensen SB. Chalcone inhibitors of the NorA efflux pump in Staphylococcus aureus whole cells and enriched everted membrane vesicles. Bioorg Med Chem 2012; 20:4514-21. [PMID: 22682300 DOI: 10.1016/j.bmc.2012.05.025] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2012] [Revised: 05/01/2012] [Accepted: 05/11/2012] [Indexed: 11/19/2022]
Abstract
A library of 117 chalcones was screened for efflux pump inhibitory (EPI) activity against NorA mediated ethidium bromide efflux. Five of the chalcones (5-7, 9, and 10) were active and two chalcones (9 and 10) were equipotent to reserpine with IC(50)-values of 9.0 and 7.7 μM, respectively. Twenty chalcones were subsequently proved to be inhibitors of the NorA efflux pump in everted membrane vesicles. Compounds 5, 7, and 9 synergistically increased the effect of ciprofloxacin on Staphylococcus aureus. Our results suggest that chalcones might be developed into drugs for overcoming multidrug resistance based on efflux transporters of microorganisms.
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Affiliation(s)
- Jes Gitz Holler
- University of Copenhagen, Faculty of Pharmaceutical Sciences, Department of Medicinal Chemistry, Denmark.
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Figueroa-González G, Jacobo-Herrera N, Zentella-Dehesa A, Pereda-Miranda R. Reversal of multidrug resistance by morning glory resin glycosides in human breast cancer cells. JOURNAL OF NATURAL PRODUCTS 2012; 75:93-97. [PMID: 22148475 DOI: 10.1021/np200864m] [Citation(s) in RCA: 69] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Reversal of multidrug resistance (MDR) by thirty resin glycosides from the morning glory family (Convolvulaceae) was evaluated in vinblastine-resistant human breast carcinoma cells (MCF-7/Vin). The effects of these amphipathic compounds on the cytotoxicity and P-glycoprotein (P-gp)-mediated MDR were estimated with the sulforhodamine B colorimetric assay. Active noncytotoxic compounds exerted a potentiation effect of vinblastine susceptibility by 1- to over 1906-fold at tested concentrations of 5 and 25 μg/mL. Murucoidin V (1) enhanced vinblastine activity 255-fold when incorporated at 25 μg/mL and also, based on flow cytometry, significantly increased the intracellular accumulation of rhodamine 123 with the use of reserpine as a positive control for a MDR reversal agent. Incubation of MCF-7/Vin cells with 1 caused an increase in uptake and notably lowered the efflux rate of rhodamine 123. Decreased expression of P-glycoprotein by compound 1 was detected by immunofluorescence flow cytometry after incubation with an anti-P-gp monoclonal antibody. These results suggest that resin glycosides represent potential efflux pump inhibitors for overcoming MDR in cancer therapy.
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Affiliation(s)
- Gabriela Figueroa-González
- Departamento de Farmacia, Facultad de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria, Mexico City, 04510, DF, Mexico
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Quave CL, Estévez-Carmona M, Compadre CM, Hobby G, Hendrickson H, Beenken KE, Smeltzer MS. Ellagic acid derivatives from Rubus ulmifolius inhibit Staphylococcus aureus biofilm formation and improve response to antibiotics. PLoS One 2012; 7:e28737. [PMID: 22242149 PMCID: PMC3252291 DOI: 10.1371/journal.pone.0028737] [Citation(s) in RCA: 121] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2011] [Accepted: 11/14/2011] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Biofilms contribute to the pathogenesis of many forms of Staphylococcus aureus infection. Treatment of these infections is complicated by intrinsic resistance to conventional antibiotics, thus creating an urgent need for strategies that can be used for the prevention and treatment of biofilm-associated infections. METHODOLOGY/PRINCIPAL FINDINGS This study demonstrates that a botanical natural product composition (220D-F2) rich in ellagic acid and its derivatives can limit S. aureus biofilm formation to a degree that can be correlated with increased antibiotic susceptibility. The source of this composition is Rubus ulmifolius Schott. (Rosaceae), a plant used in complementary and alternative medicine in southern Italy for the treatment of skin and soft tissue infections. All S. aureus clonal lineages tested exhibited a reduced capacity to form a biofilm at 220D-F2 concentrations ranging from 50-200 µg/mL, which were well below the concentrations required to limit bacterial growth (530-1040 µg/mL). This limitation was therapeutically relevant in that inclusion of 220D-F2 resulted in enhanced susceptibility to the functionally-distinct antibiotics daptomycin, clindamycin and oxacillin. Testing with kidney and liver cell lines also demonstrated a lack of host cell cytotoxicity at concentrations of 220D-F2 required to achieve these effects. CONCLUSIONS/SIGNIFICANCE These results demonstrate that extract 220D-F2 from the root of Rubus ulmifolius can be used to inhibit S. aureus biofilm formation to a degree that can be correlated with increased antibiotic susceptibility without toxic effects on normal mammalian cells. Hence, 220D-F2 is a strong candidate for development as a botanical drug for use in the prevention and treatment of S. aureus biofilm-associated infections.
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Affiliation(s)
- Cassandra L. Quave
- Department of Microbiology and Immunology, University of Arkansas for Medical Sciences, Little Rock, Arkansas, United States of America
| | - Miriam Estévez-Carmona
- Department of Pharmaceutical Sciences, University of Arkansas for Medical Sciences, Little Rock, Arkansas, United States of America
- Pharmacy Department, National School of Biological Sciences, National Polytechnic Institute, Mexico City, Mexico
| | - Cesar M. Compadre
- Department of Pharmaceutical Sciences, University of Arkansas for Medical Sciences, Little Rock, Arkansas, United States of America
| | - Gerren Hobby
- Department of Microbiology and Immunology, University of Arkansas for Medical Sciences, Little Rock, Arkansas, United States of America
| | - Howard Hendrickson
- Department of Pharmaceutical Sciences, University of Arkansas for Medical Sciences, Little Rock, Arkansas, United States of America
| | - Karen E. Beenken
- Department of Microbiology and Immunology, University of Arkansas for Medical Sciences, Little Rock, Arkansas, United States of America
| | - Mark S. Smeltzer
- Department of Microbiology and Immunology, University of Arkansas for Medical Sciences, Little Rock, Arkansas, United States of America
- Department of Orthopaedic Surgery and Center for Orthopaedic Research, University of Arkansas for Medical Sciences, Little Rock, Arkansas, United States of America
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Tegos GP, Haynes M, Strouse JJ, Khan MMT, Bologa CG, Oprea TI, Sklar LA. Microbial efflux pump inhibition: tactics and strategies. Curr Pharm Des 2011; 17:1291-302. [PMID: 21470111 DOI: 10.2174/138161211795703726] [Citation(s) in RCA: 91] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2011] [Accepted: 03/21/2011] [Indexed: 11/22/2022]
Abstract
Traditional antimicrobials are increasingly suffering from the emergence of multidrug resistance among pathogenic microorganisms. To overcome these deficiencies, a range of novel approaches to control microbial infections are under investigation as potential alternative treatments. Multidrug efflux is a key target of these efforts. Efflux mechanisms are broadly recognized as major components of resistance to many classes of chemotherapeutic agents as well as antimicrobials. Efflux occurs due to the activity of membrane transporter proteins widely known as Multidrug Efflux Systems (MES). They are implicated in a variety of physiological roles other than efflux and identifying natural substrates and inhibitors is an active and expanding research discipline. One plausible alternative is the combination of conventional antimicrobial agents/antibiotics with small molecules that block MES known as multidrug efflux pump inhibitors (EPIs). An array of approaches in academic and industrial research settings, varying from high-throughput screening (HTS) ventures to bioassay guided purification and determination, have yielded a number of promising EPIs in a series of pathogenic systems. This synergistic discovery platform has been exploited in translational directions beyond the potentiation of conventional antimicrobial treatments. This venture attempts to highlight different tactical elements of this platform, identifying the need for highly informative and comprehensive EPI-discovery strategies. Advances in assay development genomics, proteomics as well as the accumulation of bioactivity and structural information regarding MES facilitates the basis for a new discovery era. This platform is expanding drastically. A combination of chemogenomics and chemoinformatics approaches will integrate data mining with virtual and physical HTS ventures and populate the chemical-biological interface with a plethora of novel chemotypes. This comprehensive step will expedite the preclinical development of lead EPIs.
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Affiliation(s)
- George P Tegos
- Center for Molecular Discovery, University of New Mexico, Albuquerque, NM 87131, USA.
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Rosas-Ramírez D, Escalante-Sánchez E, Pereda-Miranda R. Batatins III-VI, glycolipid ester-type dimers from Ipomoea batatas. PHYTOCHEMISTRY 2011; 72:773-780. [PMID: 21453944 DOI: 10.1016/j.phytochem.2011.03.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2010] [Revised: 01/18/2011] [Accepted: 03/02/2011] [Indexed: 05/30/2023]
Abstract
Batatins III-VI (1-4), glycolipid ester-type dimers, were isolated from the tuberous roots of sweet potato (Ipomoea batatas) using recycle high performance liquid chromatography. Their structures were characterized by means of several high-resolution NMR and mass spectrometry techniques. These compounds are the first examples of ester-type dimers which consist of two units of the heterotetrasaccharide operculinic acid C. Each unit was esterified by a different amount and type of acid residues: (2S)-methylbutanoic, cinnamic, decanoic (capric) and dodecanoic (lauric) acids. Batatins III-VI (1-4) are an example of the presence of a large number of resin glycoside congeners in each morning glory species caused by partial acylation of their constitutive saccharide cores.
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Affiliation(s)
- Daniel Rosas-Ramírez
- Departamento de Farmacia, Facultad de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria, Mexico, DF, Mexico
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Yu BW, Luo JG, Wang JS, Zhang DM, Yu SS, Kong LY. Pentasaccharide resin glycosides from Ipomoea pes-caprae. JOURNAL OF NATURAL PRODUCTS 2011; 74:620-628. [PMID: 21338052 DOI: 10.1021/np100640f] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Pescapreins XXI-XXX (1-10), pentasaccharide resin glycosides, together with the known pescapreins I-IV and stoloniferin III were isolated from the aerial parts of Ipomoea pes-caprae (beach morning-glory). The pescapreins are macrolactones of simonic acid B, partially esterified with different fatty acids. The lactonization site of the aglycone, jalapinolic acid, was located at C-2 or C-3 of the second saccharide moiety. Their structures were established by a combination of spectroscopic and chemical methods. Compounds 1-10 were evaluated for their potential to modulate multidrug resistance in the human breast cancer cell line MCF-7/ADR. The combined use of these new compounds at a concentration of 5 μg/mL increased the cytotoxicity of doxorubicin by 1.5-3.7-fold.
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MESH Headings
- Antineoplastic Agents, Phytogenic/chemistry
- Antineoplastic Agents, Phytogenic/isolation & purification
- Antineoplastic Agents, Phytogenic/pharmacology
- Dose-Response Relationship, Drug
- Doxorubicin/pharmacology
- Drug Resistance, Multiple
- Drug Screening Assays, Antitumor
- Drugs, Chinese Herbal/chemistry
- Drugs, Chinese Herbal/isolation & purification
- Drugs, Chinese Herbal/pharmacology
- Fatty Acids/chemistry
- Female
- Glycosides/chemistry
- Glycosides/isolation & purification
- Glycosides/pharmacology
- Humans
- Ipomoea/chemistry
- Lactones/chemistry
- Molecular Structure
- Nuclear Magnetic Resonance, Biomolecular
- Oligosaccharides/chemistry
- Oligosaccharides/isolation & purification
- Oligosaccharides/pharmacology
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Affiliation(s)
- Bang-Wei Yu
- Department of Natural Medicinal Chemistry, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, People's Republic of China
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Fiamegos YC, Kastritis PL, Exarchou V, Han H, Bonvin AMJJ, Vervoort J, Lewis K, Hamblin MR, Tegos GP. Antimicrobial and efflux pump inhibitory activity of caffeoylquinic acids from Artemisia absinthium against gram-positive pathogenic bacteria. PLoS One 2011; 6:e18127. [PMID: 21483731 PMCID: PMC3070693 DOI: 10.1371/journal.pone.0018127] [Citation(s) in RCA: 97] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2010] [Accepted: 02/25/2011] [Indexed: 12/05/2022] Open
Abstract
Background Traditional antibiotics are increasingly suffering from the emergence of multidrug resistance amongst pathogenic bacteria leading to a range of novel approaches to control microbial infections being investigated as potential alternative treatments. One plausible antimicrobial alternative could be the combination of conventional antimicrobial agents/antibiotics with small molecules which block multidrug efflux systems known as efflux pump inhibitors. Bioassay-driven purification and structural determination of compounds from plant sources have yielded a number of pump inhibitors which acted against gram positive bacteria. Methodology/Principal Findings In this study we report the identification and characterization of 4′,5′-O-dicaffeoylquinic acid (4′,5′-ODCQA) from Artemisia absinthium as a pump inhibitor with a potential of targeting efflux systems in a wide panel of Gram-positive human pathogenic bacteria. Separation and identification of phenolic compounds (chlorogenic acid, 3′,5′-ODCQA, 4′,5′-ODCQA) was based on hyphenated chromatographic techniques such as liquid chromatography with post column solid-phase extraction coupled with nuclear magnetic resonance spectroscopy and mass spectroscopy. Microbial susceptibility testing and potentiation of well know pump substrates revealed at least two active compounds; chlorogenic acid with weak antimicrobial activity and 4′,5′-ODCQA with pump inhibitory activity whereas 3′,5′-ODCQA was ineffective. These intitial findings were further validated with checkerboard, berberine accumulation efflux assays using efflux-related phenotypes and clinical isolates as well as molecular modeling methodology. Conclusions/Significance These techniques facilitated the direct analysis of the active components from plant extracts, as well as dramatically reduced the time needed to analyze the compounds, without the need for prior isolation. The calculated energetics of the docking poses supported the biological information for the inhibitory capabilities of 4′,5′-ODCQA and furthermore contributed evidence that CQAs show a preferential binding to Major Facilitator Super family efflux systems, a key multidrug resistance determinant in gram-positive bacteria.
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Affiliation(s)
- Yiannis C. Fiamegos
- Laboratory of Analytical Chemistry, University of Ioannina, Ioannina, Greece
| | - Panagiotis L. Kastritis
- Bijvoet Center for Biomolecular Research, Science Faculty, Utrecht University, Utrecht, The Netherlands
| | | | - Haley Han
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, Massachusetts, United States of America
| | - Alexandre M. J. J. Bonvin
- Bijvoet Center for Biomolecular Research, Science Faculty, Utrecht University, Utrecht, The Netherlands
| | - Jacques Vervoort
- Wageningen NMR Center, Laboratory of Biophysics, Wageningen, The Netherlands
| | - Kim Lewis
- Department of Biology and Antimicrobial Drug Discovery Center, Northeastern University, Boston, Massachusetts, United States of America
| | - Michael R. Hamblin
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, Massachusetts, United States of America
- Department of Dermatology, Harvard Medical School, Boston, Massachusetts, United States of America
- Harvard-MIT Division of Health Sciences and Technology, Cambridge, Massachusetts, United States of America
| | - George P. Tegos
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, Massachusetts, United States of America
- Department of Dermatology, Harvard Medical School, Boston, Massachusetts, United States of America
- * E-mail:
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