101
|
Osman CP, Ismail NH. Antiplasmodial Anthraquinones from Medicinal Plants: The Chemistry and Possible Mode of Actions. Nat Prod Commun 2018. [DOI: 10.1177/1934578x1801301207] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Malaria killed nearly half a million people in 2015, and 70% of this victims were young children. Malarial chemotherapy makes use of several drugs, each with its own pharmacological limitations, and with parasite resistance being the most challenging. People of low income nations often rely on traditional medicine as a treatment due to limited access to modern healthcare services. Despite uncertainties present in the outcome of traditional medicine, ethnomedicine approach has yielded important lead candidates. The investigation of medicinal plants utilized in the malaria endemic region yielded many antiplasmodial compounds with anthraquinone moiety. This paper describes natural anthraquinones extracted from medicinal plants utilized in traditional medicine for the treatment of malaria. In addition, the insight on structure-activity relationship and their mode of actions are also elaborated.
Collapse
Affiliation(s)
- Che Puteh Osman
- Faculty of Applied Sciences, Universiti Teknologi MARA, 40450 Shah Alam, Selangor, Malaysia
- Atta-ur Rahman Institute of Natural Product Discovery, Universiti Teknologi MARA Cawangan Selangor, 42300 Bandar Puncak Alam, Selangor, Malaysia
| | - Nor Hadiani Ismail
- Faculty of Applied Sciences, Universiti Teknologi MARA, 40450 Shah Alam, Selangor, Malaysia
- Atta-ur Rahman Institute of Natural Product Discovery, Universiti Teknologi MARA Cawangan Selangor, 42300 Bandar Puncak Alam, Selangor, Malaysia
| |
Collapse
|
102
|
Chávez-Fumagalli MA, Lage DP, Tavares GSV, Mendonça DVC, Dias DS, Ribeiro PAF, Ludolf F, Costa LE, Coelho VTS, Coelho EAF. In silico Leishmania proteome mining applied to identify drug target potential to be used to treat against visceral and tegumentary leishmaniasis. J Mol Graph Model 2018; 87:89-97. [PMID: 30522092 DOI: 10.1016/j.jmgm.2018.11.014] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Revised: 11/12/2018] [Accepted: 11/28/2018] [Indexed: 12/11/2022]
Abstract
New therapeutic strategies against leishmaniasis are desirable, since the treatment against disease presents problems, such as the toxicity, high cost and/or parasite resistance. As consequence, new antileishmanial compounds are necessary to be identified, as presenting high activity against Leishmania, but low toxicity in mammalian hosts. In the present study, a Leishmania proteome mining strategy was developed, in order to select new drug targets with low homology to human proteins, but that are considered relevant for the parasite' survival. Results showed a hypothetical protein, which was functionally annotated as a glucosidase-like protein, as presenting such characteristics. This protein was associated with the metabolic network of the N-Glycan biosynthesis pathway in Leishmania, and two specific inhibitors - acarbose and miglitol - were predicted to be potential targets against it. In this context, miglitol [1-(2-Hydroxyethyl)-2-(hydroxymethyl)piperidine-3,4,5-triol] was tested against stationary promastigotes and axenic amastigotes of the Leishmania amazonensis and L. infantum species, and results showed high values of antileishmanial inhibition against both parasite species. Miglitol showed also efficacy in the treatment of Leishmania-infected macrophages; thus denoting its potential use as an antileishmanial candidate. In conclusion, this work presents a new drug target identified by a proteome mining strategy associated with bioinformatics tools, and suggested its use as a possible candidate to be applied in the treatment against disease.
Collapse
Affiliation(s)
- Miguel A Chávez-Fumagalli
- Programa de Pós-Graduação em Ciências da Saúde: Infectologia e Medicina Tropical, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Daniela P Lage
- Programa de Pós-Graduação em Ciências da Saúde: Infectologia e Medicina Tropical, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Grasiele S V Tavares
- Programa de Pós-Graduação em Ciências da Saúde: Infectologia e Medicina Tropical, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Débora V C Mendonça
- Programa de Pós-Graduação em Ciências da Saúde: Infectologia e Medicina Tropical, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Daniel S Dias
- Programa de Pós-Graduação em Ciências da Saúde: Infectologia e Medicina Tropical, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Patrícia A F Ribeiro
- Programa de Pós-Graduação em Ciências da Saúde: Infectologia e Medicina Tropical, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Fernanda Ludolf
- Programa de Pós-Graduação em Ciências da Saúde: Infectologia e Medicina Tropical, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Lourena E Costa
- Programa de Pós-Graduação em Ciências da Saúde: Infectologia e Medicina Tropical, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Vinicio T S Coelho
- Programa de Pós-Graduação em Ciências da Saúde: Infectologia e Medicina Tropical, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Eduardo A F Coelho
- Programa de Pós-Graduação em Ciências da Saúde: Infectologia e Medicina Tropical, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil; Departamento de Patologia Clínica, COLTEC, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil.
| |
Collapse
|
103
|
Lechuga GC, Pereira MCS, Bourguignon SC. Heme metabolism as a therapeutic target against protozoan parasites. J Drug Target 2018; 27:767-779. [DOI: 10.1080/1061186x.2018.1536982] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Guilherme Curty Lechuga
- Laboratório de Interação celular e molecular, Departamento de Biologia Celular e Molecular, Universidade Federal Fluminense, Rua Outeiro São João Batista, Rio de Janeiro, Brazil
- Fundação Oswaldo Cruz, Laboratório de Ultraestrutura Celular, Rio de Janeiro, Brazil
- Instituto de Biologia, Programa de Pós-graduação em Ciências e Biotecnologia (PPBI), Universidade Federal Fluminense, Rio de Janeiro, Brazil
| | - Mirian C. S. Pereira
- Fundação Oswaldo Cruz, Laboratório de Ultraestrutura Celular, Rio de Janeiro, Brazil
| | - Saulo C. Bourguignon
- Laboratório de Interação celular e molecular, Departamento de Biologia Celular e Molecular, Universidade Federal Fluminense, Rua Outeiro São João Batista, Rio de Janeiro, Brazil
- Instituto de Biologia, Programa de Pós-graduação em Ciências e Biotecnologia (PPBI), Universidade Federal Fluminense, Rio de Janeiro, Brazil
| |
Collapse
|
104
|
Ronchi RJ, Beaufay C, Bero J, Robirosa JB, Mazzuca M, Palermo JA, Quetin-Leclercq J, Sánchez M. Secochiliolide ester derivatives: Preparation and evaluation of their antitrypanosomal and antimalarial efficacy. Chem Biol Drug Des 2018; 93:147-153. [PMID: 30216685 DOI: 10.1111/cbdd.13392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Revised: 08/28/2018] [Accepted: 09/02/2018] [Indexed: 11/30/2022]
Abstract
In the present study, a series of new esters of secochiliolide acid (SA), a diterpene isolated from Nardophyllum bryoides, were synthesized in good yield. All compounds were evaluated for their in vitro antiparasitic properties (on Plasmodium falciparum and Trypanosoma brucei brucei) and cytotoxicity (on WI38, normal mammalian cells). They displayed moderate antitrypanosomal activity with IC50 values between 2.55 and 18.14 μm, with selectivity indices >10, and low antiplasmodial effects with IC50 > 29 μm. The only exception was the n-hexyl ester of SA, which showed a strong and selective antiplasmodial activity (IC50 = 1.99 μm and selectivity index = 117.0). The in vivo antimalarial efficacy of this compound was then assessed according to the 4-day suppressive test of Peters in mice. An intraperitoneal treatment at 50 mg kg-1 day-1 induced a slight parasitaemia reduction by 56% which was statistically significant on day 4 post-infection and an increase in the survival time.
Collapse
Affiliation(s)
- Romina J Ronchi
- Departamento de Química Orgánica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina.,Unidad de Microanálisis y Métodos Físicos en Química Orgánica (UMYMFOR), CONICET-Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Claire Beaufay
- Pharmacognosy Research Group, Louvain Drug Research Institute, Université catholique de Louvain, Brussels, Belgium
| | - Joanne Bero
- Pharmacognosy Research Group, Louvain Drug Research Institute, Université catholique de Louvain, Brussels, Belgium
| | - Juan B Robirosa
- Departamento de Química Orgánica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina.,Unidad de Microanálisis y Métodos Físicos en Química Orgánica (UMYMFOR), CONICET-Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Marcia Mazzuca
- Departamento de Química, Facultad de Ciencias Naturales, Consejo Nacional de Investigaciones Científicas y Técnicas, Centro de Investigación y Transferencia Golfo San Jorge (CIT-Golfo San Jorge), Comodoro Rivadavia, Chubut, Argentina
| | - Jorge A Palermo
- Departamento de Química Orgánica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina.,Unidad de Microanálisis y Métodos Físicos en Química Orgánica (UMYMFOR), CONICET-Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Joëlle Quetin-Leclercq
- Pharmacognosy Research Group, Louvain Drug Research Institute, Université catholique de Louvain, Brussels, Belgium
| | - Marianela Sánchez
- Departamento de Química Orgánica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina.,Unidad de Microanálisis y Métodos Físicos en Química Orgánica (UMYMFOR), CONICET-Universidad de Buenos Aires, Buenos Aires, Argentina
| |
Collapse
|
105
|
Alcântara LM, Ferreira TCS, Gadelha FR, Miguel DC. Challenges in drug discovery targeting TriTryp diseases with an emphasis on leishmaniasis. INTERNATIONAL JOURNAL FOR PARASITOLOGY-DRUGS AND DRUG RESISTANCE 2018; 8:430-439. [PMID: 30293058 PMCID: PMC6195035 DOI: 10.1016/j.ijpddr.2018.09.006] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/28/2018] [Revised: 09/25/2018] [Accepted: 09/26/2018] [Indexed: 01/24/2023]
Abstract
Tritryps diseases are devastating parasitic neglected infections caused by Leishmania spp., Trypanosoma cruzi and Trypanosoma brucei subspecies. Together, these parasites affect more than 30 million people worldwide and cause high mortality and morbidity. Leishmaniasis comprises a complex group of diseases with clinical manifestation ranging from cutaneous lesions to systemic visceral damage. Antimonials, the first-choice drugs used to treat leishmaniasis, lead to high toxicity and carry significant contraindications limiting its use. Drug-resistant parasite strains are also a matter for increasing concern, especially in areas with very limited resources. The current scenario calls for novel and/or improvement of existing therapeutics as key research priorities in the field. Although several studies have shown advances in drug discovery towards leishmaniasis in recent years, key knowledge gaps in drug discovery pipelines still need to be addressed. In this review we discuss not only scientific and non-scientific bottlenecks in drug development, but also the central role of public-private partnerships for a successful campaign for novel treatment options against this devastating disease. Treatment options targeting TriTryp diseases are limited. Scientific and non-scientific bottlenecks need to be unveiled for the development of new treatments. Private and public sector partnership is key to allow advances in bench-to-bedside science.
Collapse
Affiliation(s)
- Laura M Alcântara
- Biology Institute, University of Campinas - UNICAMP, Campinas, São Paulo, Brazil
| | - Thalita C S Ferreira
- Biology Institute, University of Campinas - UNICAMP, Campinas, São Paulo, Brazil
| | - Fernanda R Gadelha
- Biology Institute, University of Campinas - UNICAMP, Campinas, São Paulo, Brazil
| | - Danilo C Miguel
- Biology Institute, University of Campinas - UNICAMP, Campinas, São Paulo, Brazil.
| |
Collapse
|
106
|
Nyaba ZN, Murambiwa P, Opoku AR, Mukaratirwa S, Shode FO, Simelane MBC. Isolation, characterization, and biological evaluation of a potent anti-malarial drimane sesquiterpene from Warburgia salutaris stem bark. Malar J 2018; 17:296. [PMID: 30111328 PMCID: PMC6094573 DOI: 10.1186/s12936-018-2439-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Accepted: 08/01/2018] [Indexed: 11/10/2022] Open
Abstract
Background Malaria continues to be a global burden as the efficacy of most commercial anti-malarial drugs has been compromised by the evolution of parasite resistance. With the urgent need created for the development of alternative and more efficient anti-malarial drugs, this study focused on the evaluation of anti-malarial agents of the Warburgia salutaris stem bark. Methods The stem bark was extracted with dichloromethane followed by silica gel column chromatography that led to the isolation of iso-mukaadial acetate, a drimanoid sesquiterpene. This compound was characterized by spectroscopic analysis (1H NMR, 13C NMR, IR and MS), and its structure was confirmed by X-ray crystallography. In vitro anti-plasmodial activity was investigated using a chloroquine sensitive NF54 Plasmodium falciparum strain. Cytotoxicity was measured using the MTT assay on HEK239 and HEPG2 cell lines. Chloroquine-sensitive Plasmodium berghei was used to infect Sprague–Dawley rats for in vivo studies. The W. salutaris crude extract and iso-mukaadial acetate were administered orally at 0.5; 1.5, 2.5 and 5 mg/kg, chloroquine was used as the reference drug. Determination of percentage parasitaemia, haematological parameters, and rat body weights was done throughout the experimental study period. Results The crude extract and iso-mukaadial acetate showed very good activity on the inhibition of parasite growth (IC50 0.01 ± 0.30 µg/ml) and (IC50 0.44 ± 0.10 µg/ml), respectively, with iso-mukaadial acetate having cytotoxicity activity of 36.7 ± 0.8 and 119.2 ± 8.8 (µg/ml) on HEK293 and HEPG2 cells, respectively. The crude extract and iso-mukaadial acetate reduced percentage parasitaemia in a dose-dependent manner in comparison to the control. There were no significant differences in the haematological parameters in all the experimental groups in comparison to control group. This study proves that W. salutaris contains components (including iso-mukaadial acetate) that exhibit anti-malarial activity. This study scientifically validates the use of this plant in folk medicine. Conclusions This study proves that Warburgia salutaris contains components (including iso-mukaadial acetate) that exhibit anti-malarial activity and scientifically validates the use of this plant in folk medicine.
Collapse
Affiliation(s)
- Zoxolo N Nyaba
- School of Life Sciences, University of KwaZulu-Natal, Scottsville, Pietermaritzburg, 3209, South Africa
| | - Pretty Murambiwa
- School of Life Sciences, University of KwaZulu-Natal, Durban, 4041, South Africa
| | - Andy R Opoku
- Department of Biochemistry & Microbiology, University of Zululand, Private Bag X1001, KwaDlangezwa, 3886, South Africa
| | - Samson Mukaratirwa
- School of Life Sciences, University of KwaZulu-Natal, Durban, 4041, South Africa
| | - Francis O Shode
- Department of Biotechnology and Food Technology, Durban University of Technology, P O Box 1334, Durban, 4000, South Africa
| | - Mthokozisi B C Simelane
- School of Life Sciences, University of KwaZulu-Natal, Scottsville, Pietermaritzburg, 3209, South Africa.
| |
Collapse
|
107
|
Zhao L, Kaiser M, Bode HB. Rhabdopeptide/Xenortide-like Peptides from Xenorhabdus innexi with Terminal Amines Showing Potent Antiprotozoal Activity. Org Lett 2018; 20:5116-5120. [PMID: 30095261 DOI: 10.1021/acs.orglett.8b01975] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Seven new rhabdopeptide/xenortide-like peptides (RXPs) (1-7) with putrescine or ammonia as the C-terminal amines were isolated from Xenorhabdus innexi DSM 16336. Their chemical structures were elucidated by high-resoultion mass spectroscopy (HR-MS) and one-dimensional (1D) and two-dimensional (2D) NMR. They were evaluated for their activities against protozoan parasites and cytotoxicity against rat skeletal myoblasts (L6 cells). All tested compounds exhibited strong effects against Trypanosoma brucei rhodesiense and Plasmodium falciparum, with IC50 values of 0.07-6.25 and 0.091-3.16 μM, respectively, making them the most active RXP derivatives known to date.
Collapse
Affiliation(s)
- Lei Zhao
- Molekulare Biotechnologie, Fachbereich Biowissenschaften , Goethe Universität Frankfurt , 60438 Frankfurt am Main , Germany.,Institute of Botany, Jiangsu Province and Chinese Academy of Sciences , 210014 Nanjing , China
| | - Marcel Kaiser
- Parasite Chemotherapy , Swiss Tropical and Public Health Institute , 4051 Basel , Switzerland.,University of Basel , 4003 Basel , Switzerland
| | - Helge B Bode
- Molekulare Biotechnologie, Fachbereich Biowissenschaften , Goethe Universität Frankfurt , 60438 Frankfurt am Main , Germany.,Buchmann Institute for Molecular Life Sciences (BMLS) , Goethe Universität Frankfurt , 60438 Frankfurt am Main , Germany
| |
Collapse
|
108
|
Carvalho SG, Siqueira LA, Zanini MS, dos Santos Matos AP, Quaresma CH, da Silva LM, de Andrade SF, Severi JA, Villanova JCO. Physicochemical and in vitro biological evaluations of furazolidone-based β-cyclodextrin complexes in Leishmania amazonensis. Res Vet Sci 2018; 119:143-153. [DOI: 10.1016/j.rvsc.2018.06.013] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2018] [Revised: 06/10/2018] [Accepted: 06/13/2018] [Indexed: 10/28/2022]
|
109
|
Weng HB, Chen HX, Wang MW. Innovation in neglected tropical disease drug discovery and development. Infect Dis Poverty 2018; 7:67. [PMID: 29950174 PMCID: PMC6022351 DOI: 10.1186/s40249-018-0444-1] [Citation(s) in RCA: 67] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2018] [Accepted: 05/23/2018] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND Neglected tropical diseases (NTDs) are closely related to poverty and affect over a billion people in developing countries. The unmet treatment needs cause high mortality and disability thereby imposing a huge burden with severe social and economic consequences. Although coordinated by the World Health Organization, various philanthropic organizations, national governments and the pharmaceutical industry have been making efforts in improving the situation, the control of NTDs is still inadequate and extremely difficult today. The lack of safe, effective and affordable medicines is a key contributing factor. This paper reviews the recent advances and some of the challenges that we are facing in the fight against NTDs. MAIN BODY In recent years, a number of innovations have demonstrated propensity to promote drug discovery and development for NTDs. Implementation of multilateral collaborations leads to continued efforts and plays a crucial role in drug discovery. Proactive approaches and advanced technologies are urgently needed in drug innovation for NTDs. However, the control and elimination of NTDs remain a formidable task as it requires persistent international cooperation to make sustainable progresses for a long period of time. Some currently employed strategies were proposed and verified to be successful, which involve both mechanisms of 'Push' which aims at cutting the cost of research and development for industry and 'Pull' which aims at increasing market attractiveness. Coupled to this effort should be the exercise of shared responsibility globally to reduce risks, overcome obstacles and maximize benefits. Since NTDs are closely associated with poverty, it is absolutely essential that the stakeholders take concerted and long-term measures to meet multifaceted challenges by alleviating extreme poverty, strengthening social intervention, adapting climate changes, providing effective monitoring and ensuring timely delivery. CONCLUSIONS The ongoing endeavor at the global scale will ultimately benefit the patients, the countries they are living and, hopefully, the manufacturers who provide new preventive, diagnostic and therapeutic products.
Collapse
Affiliation(s)
- Hong-Bo Weng
- School of Pharmacy, Fudan University, 826 Zhangheng Road, Pudong New District, Shanghai, 201203 China
| | - Hai-Xia Chen
- School of Pharmacy, Fudan University, 826 Zhangheng Road, Pudong New District, Shanghai, 201203 China
| | - Ming-Wei Wang
- School of Pharmacy, Fudan University, 826 Zhangheng Road, Pudong New District, Shanghai, 201203 China
- The National Center for Drug Screening and the CAS Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences (CAS), 189 Guoshoujing Road, Pudong New District, Shanghai, 201203 China
- School of Life Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Pudong New District, Shanghai, 201210 China
| |
Collapse
|
110
|
Abstract
INTRODUCTION Parasitic diseases that pose a threat to human life include leishmaniasis - caused by protozoan parasite Leishmania species. Existing drugs have limitations due to deleterious side effects like teratogenicity, high cost and drug resistance. This calls for the need to have an insight into therapeutic aspects of disease. Areas covered: We have identified different drug targets via. molecular, imuunological, metabolic as well as by system biology approaches. We bring these promising drug targets into light so that they can be explored to their maximum. In an effort to bridge the gaps between existing knowledge and prospects of drug discovery, we have compiled interesting studies on drug targets, thereby paving the way for establishment of better therapeutic aspects. Expert opinion: Advancements in technology shed light on many unexplored pathways. Further probing of well established pathways led to the discovery of new drug targets. This review is a comprehensive report on current and emerging drug targets, with emphasis on several metabolic targets, organellar biochemistry, salvage pathways, epigenetics, kinome and more. Identification of new targets can contribute significantly towards strengthening the pipeline for disease elimination.
Collapse
Affiliation(s)
- Shyam Sundar
- Department of Medicine, Institute of Medical Sciences, Banaras Hindu University, Varanasi-221 005, UP, India
| | - Bhawana Singh
- Department of Medicine, Institute of Medical Sciences, Banaras Hindu University, Varanasi-221 005, UP, India
| |
Collapse
|
111
|
El-Khadragy M, Alolayan EM, Metwally DM, El-Din MFS, Alobud SS, Alsultan NI, Alsaif SS, Awad MA, Abdel Moneim AE. Clinical Efficacy Associated with Enhanced Antioxidant Enzyme Activities of Silver Nanoparticles Biosynthesized Using Moringa oleifera Leaf Extract, Against Cutaneous Leishmaniasis in a Murine Model of Leishmania major. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2018; 15:E1037. [PMID: 29786651 PMCID: PMC5982076 DOI: 10.3390/ijerph15051037] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Revised: 05/15/2018] [Accepted: 05/15/2018] [Indexed: 12/27/2022]
Abstract
Leishmaniasis is one of the most significant vector-borne syndromes of individuals. This parasitic infection can be affected by many species of Leishmania, most of which are zoonotic. Natural products have made and are continuing to make important contributions to the search for new antileishmanial agents. The use of plants in the production assembly of silver nanoparticles has drawn attention because of its rapid, eco-friendly, non-pathogenic, economical protocol and provides a single step technique for the biosynthetic process. Hence, we aimed to biosynthesize silver nanoparticles (Ag-NPs) using Moringa oleifera leaf extract and investigated the antileishmanial activity of these nanoparticles in a murine model of Leishmania major infection. A total of 50 mice were used and divided into five groups-healthy control, infected, infected mice treated with pentostam, infected mice treated with Ag-NPs and infected mice pretreated with Ag-NPs. In the present study, the leaf extract of the plant species Moringa oleifera was found to be a good source for the synthesis of silver nanoparticles, their formation being confirmed by color change and stability in solution. In the present murine model of Leishmania major infection, we found that oral treatment with silver nanoparticles biosynthesized using Moringa oleifera extract resulted in a significant reduction in the average size of leishmaniasis cutaneous lesions compared with untreated mice. Furthermore, the clinical efficacy of Moringa oleifera extract was associated with enhanced antioxidant enzyme activities. In conclusion, treatment with silver nanoparticles biosynthesized using Moringa oleifera extract has higher and faster clinical efficacy than standard pentavalent antimonial treatment, probably by boosting the endogenous antioxidant activity.
Collapse
Affiliation(s)
- Manal El-Khadragy
- Chair Vaccines Research of Infectious Diseases, Faculty of Science, King Saud University, Riyadh 11451, Saudi Arabia.
- Faculty of Science, Zoology Department, King Saud University, Riyadh 11451, Saudi Arabia.
- Department of Zoology and Entomology, Faculty of Science, Helwan University, Cairo 11795, Egypt.
| | - Ebtesam M Alolayan
- Chair Vaccines Research of Infectious Diseases, Faculty of Science, King Saud University, Riyadh 11451, Saudi Arabia.
- Faculty of Science, Zoology Department, King Saud University, Riyadh 11451, Saudi Arabia.
| | - Dina M Metwally
- Chair Vaccines Research of Infectious Diseases, Faculty of Science, King Saud University, Riyadh 11451, Saudi Arabia.
- Faculty of Science, Zoology Department, King Saud University, Riyadh 11451, Saudi Arabia.
- Parasitology Department, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44519, Egypt.
| | - Mohamed F Serag El-Din
- Department of Nutrition and Food Science, Faculty of Home Economics, Minufiya University, Shebin ElKom 32511, Egypt.
- Department of Food Sciences, College of Food and Agricultural Sciences, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia.
| | - Sara S Alobud
- Faculty of Medicine, King Saud University, Riyadh 11451, Saudi Arabia.
| | - Nour I Alsultan
- Faculty of Medicine, King Saud University, Riyadh 11451, Saudi Arabia.
| | - Sarah S Alsaif
- Chair Vaccines Research of Infectious Diseases, Faculty of Science, King Saud University, Riyadh 11451, Saudi Arabia.
- Faculty of Science, Botany and Microbiology Department, King Saud University, Riyadh 11451, Saudi Arabia.
| | - Manal A Awad
- King Abdullah Institute for Nanotechnology, King Saud University, Riyadh 11451, Saudi Arabia.
| | - Ahmed E Abdel Moneim
- Department of Zoology and Entomology, Faculty of Science, Helwan University, Cairo 11795, Egypt.
| |
Collapse
|
112
|
Abstract
Infectious diseases caused by germs, parasites, fungi, virus and bacteria are one of the leading causes of death worldwide. Polymeric therapeutics are nanomedicines that offer several advantages making them useful for the treatment of infectious diseases such as targeted drug release mechanism, ability to maintain the drug concentration within a therapeutic window for a desired duration, biocompatibility with low immunogenicity and reduced drug toxicity resulting in enhanced therapeutic efficacy of the incorporated drug. Although polymeric therapeutics have been evaluated for the treatment of infectious diseases in vitro and in vivo with improved therapeutic efficacy, most treatments for infectious disease have not been evaluated using polymeric therapeutics. This review will focus on the applications of polymeric therapeutics for the treatment of infectious diseases (preclinical studies and clinical trials), with particular focus on parasitic and viral infections.
Collapse
|
113
|
Tiwari N, Tanwar N, Munde M. Molecular insights into trypanothione reductase-inhibitor interaction: A structure-based review. Arch Pharm (Weinheim) 2018; 351:e1700373. [DOI: 10.1002/ardp.201700373] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2017] [Revised: 03/20/2018] [Accepted: 03/23/2018] [Indexed: 11/06/2022]
Affiliation(s)
- Neha Tiwari
- School of Physical Sciences; Jawaharlal Nehru University; New Delhi India
| | - Neetu Tanwar
- School of Physical Sciences; Jawaharlal Nehru University; New Delhi India
| | - Manoj Munde
- School of Physical Sciences; Jawaharlal Nehru University; New Delhi India
| |
Collapse
|
114
|
Panda SK, Luyten W. Antiparasitic activity in Asteraceae with special attention to ethnobotanical use by the tribes of Odisha, India. Parasite 2018; 25:10. [PMID: 29528842 PMCID: PMC5847338 DOI: 10.1051/parasite/2018008] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Accepted: 02/03/2018] [Indexed: 12/11/2022] Open
Abstract
The purpose of this review is to survey the antiparasitic plants of the Asteraceae family and their applicability in the treatment of parasites. This review is divided into three major parts: (a) literature on traditional uses of Asteraceae plants for the treatment of parasites; (b) description of the major classes of chemical compounds from Asteraceae and their antiparasitic effects; and (c) antiparasitic activity with special reference to flavonoids and terpenoids. This review provides detailed information on the reported Asteraceae plant extracts found throughout the world and on isolated secondary metabolites that can inhibit protozoan parasites such as Plasmodium, Trypanosoma, Leishmania, and intestinal worms. Additionally, special attention is given to the Asteraceae plants of Odisha, used by the tribes of the area as antiparasitics. These plants are compared to the same plants used traditionally in other regions. Finally, we provide information on which plants identified in Odisha, India and related compounds show promise for the development of new drugs against parasitic diseases. For most of the plants discussed in this review, the active compounds still need to be isolated and tested further.
Collapse
Affiliation(s)
- Sujogya Kumar Panda
- Department of Zoology, North Orissa University,
Baripada-
757003 India
- Department of Biology, KU Leuven,
3000
Leuven Belgium
| | - Walter Luyten
- Department of Biology, KU Leuven,
3000
Leuven Belgium
| |
Collapse
|
115
|
Das D, Khan HPA, Shivahare R, Gupta S, Sarkar J, Siddiqui MI, Ampapathi RS, Chakraborty TK. Synthesis, SAR and biological studies of sugar amino acid-based almiramide analogues: N-methylation leads the way. Org Biomol Chem 2018; 15:3337-3352. [PMID: 28368065 DOI: 10.1039/c6ob02610a] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Leishmaniasis, caused by the protozoan parasites of the genus Leishmania, is one of the most neglected diseases endemic in many continents posing enormous global health threats and therefore the discovery of new antileishmanial compounds is of utmost urgency. The antileishmanial activities of a library of sugar amino acid-based linear lipopeptide analogues were examined with the aim to identify potential drug candidates to treat visceral leishmaniasis. It was found that among the synthesized analogues, most of the permethylated compounds exhibited more activity in in vitro studies against intra-macrophagic amastigotes than the non-methylated analogues. SAR and NMR studies revealed that introduction of the N-methyl groups inhibited the formation of any turn structure in these molecules, which led to their improved activities.
Collapse
Affiliation(s)
- Dipendu Das
- Medicinal & Process Chemistry Division, CSIR-Central Drug Research Institute, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow 226031, India
| | | | | | | | | | | | | | | |
Collapse
|
116
|
Singh G, Chowdhary K, Satija P, Singh A, Singh B, Singh K, Espinosa C, Esteban MA, Sehgal R, Verma V. Synthesis and Immobilization of Benzothiazole-Appended Triazole-Silane: Biological Evaluation and Molecular Docking Approach. ChemistrySelect 2018. [DOI: 10.1002/slct.201703017] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Gurjaspreet Singh
- Department of Chemistry and Centre of Advanced Studies; Panjab University; Chandigarh 160014 India
| | - Kavita Chowdhary
- Department of Chemistry and Centre of Advanced Studies; Panjab University; Chandigarh 160014 India
| | - Pinky Satija
- Department of Chemistry and Centre of Advanced Studies; Panjab University; Chandigarh 160014 India
| | - Akshpreet Singh
- Department of Chemistry and Centre of Advanced Studies; Panjab University; Chandigarh 160014 India
| | - Baljinder Singh
- Department of Biotechnology; Panjab University; Chandigarh 160014 India
| | - Kashmir Singh
- Department of Biotechnology; Panjab University; Chandigarh 160014 India
| | - Cristóbal Espinosa
- Department of Cell Biology & Histology, Faculty of Biology; University of Murcia; 30100 Murcia Spain
| | - M. Angeles Esteban
- Department of Cell Biology & Histology, Faculty of Biology; University of Murcia; 30100 Murcia Spain
| | - Rakesh Sehgal
- Department of Medical Parasitology; PGIMER; Chandigarh- 160012 India
| | - Vikas Verma
- Guru Jhambeshwar University of Science and Technology; Hisar 125001 India
| |
Collapse
|
117
|
Mahadeo K, Grondin I, Kodja H, Soulange Govinden J, Jhaumeer Laulloo S, Frederich M, Gauvin-Bialecki A. The genus Psiadia: Review of traditional uses, phytochemistry and pharmacology. JOURNAL OF ETHNOPHARMACOLOGY 2018; 210:48-68. [PMID: 28842341 DOI: 10.1016/j.jep.2017.08.023] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2017] [Revised: 08/17/2017] [Accepted: 08/18/2017] [Indexed: 06/07/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The genus Psiadia Jacq. ex. Willd. belongs to the Asteraceae family and includes more than 60 species. This genus grows in tropical and subtropical regions, being especially well represented in Madagascar and the Mascarene Islands (La Réunion, Mauritius and Rodrigues). Several Psiadia species have been used traditionally for their medicinal properties in Africa and the Mascarene Islands. Based on traditional knowledge, various phytochemical and pharmacological studies have been conducted. However there are no recent papers that provide an overview of the medicinal potential of Psiadia species. Therefore, the aim of this review is to provide a comprehensive summary of the botany, phytochemistry and pharmacology of Psiadia and to highlight the gaps in our knowledge for future research opportunities. MATERIALS AND METHODS The available information on traditional uses, phytochemistry and biological activities of the genus Psiadia was collected from scientific databases through a search using the keyword 'Psiadia' in 'Google Scholar', 'Pubmed', 'Sciencedirect', 'SpringerLink', 'Web of Science', 'Wiley' and 'Scifinder'. Additionally, published books and unpublished Ph.D. and MSc. dissertations were consulted for botanical information and chemical composition. RESULTS Historically, species of the genus Psiadia have been used to treat a wide range of ailments including abdominal pains, colds, fevers, bronchitis, asthma, rheumatoid arthritis, skin infections and liver disorders among others. Phytochemical works led to the isolation of flavonoids, phenylpropanoids, coumarins and terpenoids. Furthermore, phytochemical compositions of the essential oils of some species have been evaluated. Crude extracts, essential oils and isolated molecules showed in vitro pharmacological activities, such as antimicrobial, anti-viral, anti-inflammatory, antiplasmodial and antileishmanial activities. Crude extracts of Psiadia dentata and Psiadia arguta have specifically been found to be potentially useful for inhibition of growth of Plasmodium falciparum. However, pharmacological data on this particular genus is quite limited. Further research is necessary to determine the active compounds and the underlying mechanisms.
Collapse
Affiliation(s)
- Keshika Mahadeo
- Laboratoire de Chimie des Substances Naturelles et des Sciences des Aliments, Faculté des Sciences et Technologies, Université de la Réunion, 15 Avenue René Cassin, BP 7151, St Denis Messag Cedex 9, La Réunion 97 715, France.
| | - Isabelle Grondin
- Laboratoire de Chimie des Substances Naturelles et des Sciences des Aliments, Faculté des Sciences et Technologies, Université de la Réunion, 15 Avenue René Cassin, BP 7151, St Denis Messag Cedex 9, La Réunion 97 715, France.
| | - Hippolyte Kodja
- UMR Qualisud, Université de La Réunion, BP 7151, 15 Avenue René Cassin, 97744 Saint-Denis Cedex 09, La Réunion, France.
| | - Joyce Soulange Govinden
- Department of Agriculture and Food Science, Faculty of Agriculture, The University of Mauritius, Mauritius.
| | | | - Michel Frederich
- Université de Liège, Département de Pharmacie, Centre Interfacultaire de Recherche sur le Médicament (CIRM), Laboratoire de Pharmacognosie, Campus du Sart-Tilman, Quartier Hôpital, Avenue Hippocrate, 15 B36 4000 Liège, Belgium.
| | - Anne Gauvin-Bialecki
- Laboratoire de Chimie des Substances Naturelles et des Sciences des Aliments, Faculté des Sciences et Technologies, Université de la Réunion, 15 Avenue René Cassin, BP 7151, St Denis Messag Cedex 9, La Réunion 97 715, France.
| |
Collapse
|
118
|
Essential Oils from Neotropical Piper Species and Their Biological Activities. Int J Mol Sci 2017; 18:ijms18122571. [PMID: 29240662 PMCID: PMC5751174 DOI: 10.3390/ijms18122571] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Revised: 11/23/2017] [Accepted: 11/23/2017] [Indexed: 01/01/2023] Open
Abstract
The Piper genus is the most representative of the Piperaceae reaching around 2000 species distributed in the pantropical region. In the Neotropics, its species are represented by herbs, shrubs, and lianas, which are used in traditional medicine to prepare teas and infusions. Its essential oils (EOs) present high yield and are chemically constituted by complex mixtures or the predominance of main volatile constituents. The chemical composition of Piper EOs displays interspecific or intraspecific variations, according to the site of collection or seasonality. The main volatile compounds identified in Piper EOs are monoterpenes hydrocarbons, oxygenated monoterpenoids, sesquiterpene hydrocarbons, oxygenated sesquiterpenoids and large amounts of phenylpropanoids. In this review, we are reporting the biological potential of Piper EOs from the Neotropical region. There are many reports of Piper EOs as antimicrobial agents (fungi and bacteria), antiprotozoal (Leishmania spp., Plasmodium spp., and Trypanosoma spp.), acetylcholinesterase inhibitor, antinociceptive, anti-inflammatory and cytotoxic activity against different tumor cells lines (breast, leukemia, melanoma, gastric, among others). These studies can contribute to the rational and economic exploration of Piper species, once they have been identified as potent natural and alternative sources to treat human diseases.
Collapse
|
119
|
Bayliss T, Robinson DA, Smith VC, Brand S, McElroy SP, Torrie LS, Mpamhanga C, Norval S, Stojanovski L, Brenk R, Frearson JA, Read KD, Gilbert IH, Wyatt PG. Design and Synthesis of Brain Penetrant Trypanocidal N-Myristoyltransferase Inhibitors. J Med Chem 2017; 60:9790-9806. [PMID: 29125744 PMCID: PMC5734605 DOI: 10.1021/acs.jmedchem.7b01255] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
N-Myristoyltransferase (NMT) represents a promising drug target within the parasitic protozoa Trypanosoma brucei (T. brucei), the causative agent for human African trypanosomiasis (HAT) or sleeping sickness. We have previously validated T. brucei NMT as a promising druggable target for the treatment of HAT in both stages 1 and 2 of the disease. We report on the use of the previously reported DDD85646 (1) as a starting point for the design of a class of potent, brain penetrant inhibitors of T. brucei NMT.
Collapse
Affiliation(s)
- Tracy Bayliss
- Drug Discovery Unit, College of Life Sciences, University of Dundee , Sir James Black Centre, Dundee DD1 5EH, U.K
| | - David A Robinson
- Drug Discovery Unit, College of Life Sciences, University of Dundee , Sir James Black Centre, Dundee DD1 5EH, U.K
| | - Victoria C Smith
- Drug Discovery Unit, College of Life Sciences, University of Dundee , Sir James Black Centre, Dundee DD1 5EH, U.K
| | - Stephen Brand
- Drug Discovery Unit, College of Life Sciences, University of Dundee , Sir James Black Centre, Dundee DD1 5EH, U.K
| | - Stuart P McElroy
- Drug Discovery Unit, College of Life Sciences, University of Dundee , Sir James Black Centre, Dundee DD1 5EH, U.K
| | - Leah S Torrie
- Drug Discovery Unit, College of Life Sciences, University of Dundee , Sir James Black Centre, Dundee DD1 5EH, U.K
| | - Chido Mpamhanga
- Drug Discovery Unit, College of Life Sciences, University of Dundee , Sir James Black Centre, Dundee DD1 5EH, U.K
| | - Suzanne Norval
- Drug Discovery Unit, College of Life Sciences, University of Dundee , Sir James Black Centre, Dundee DD1 5EH, U.K
| | - Laste Stojanovski
- Drug Discovery Unit, College of Life Sciences, University of Dundee , Sir James Black Centre, Dundee DD1 5EH, U.K
| | - Ruth Brenk
- Drug Discovery Unit, College of Life Sciences, University of Dundee , Sir James Black Centre, Dundee DD1 5EH, U.K
| | - Julie A Frearson
- Drug Discovery Unit, College of Life Sciences, University of Dundee , Sir James Black Centre, Dundee DD1 5EH, U.K
| | - Kevin D Read
- Drug Discovery Unit, College of Life Sciences, University of Dundee , Sir James Black Centre, Dundee DD1 5EH, U.K
| | - Ian H Gilbert
- Drug Discovery Unit, College of Life Sciences, University of Dundee , Sir James Black Centre, Dundee DD1 5EH, U.K
| | - Paul G Wyatt
- Drug Discovery Unit, College of Life Sciences, University of Dundee , Sir James Black Centre, Dundee DD1 5EH, U.K
| |
Collapse
|
120
|
Chopra G, Samudrala R. Exploring Polypharmacology in Drug Discovery and Repurposing Using the CANDO Platform. Curr Pharm Des 2017; 22:3109-23. [PMID: 27013226 DOI: 10.2174/1381612822666160325121943] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2016] [Accepted: 03/01/2015] [Indexed: 01/05/2023]
Abstract
BACKGROUND Traditional drug discovery approaches focus on a limited set of target molecules for treatment against specific indications/diseases. However, drug absorption, dispersion, metabolism, and excretion (ADME) involve interactions with multiple protein systems. Drugs approved for particular indication(s) may be repurposed as novel therapeutics for others. The severely declining rate of discovery and increasing costs of new drugs illustrate the limitations of the traditional reductionist paradigm in drug discovery. METHODS We developed the Computational Analysis of Novel Drug Opportunities (CANDO) platform based on a hypothesis that drugs function by interacting with multiple protein targets to create a molecular interaction signature that can be exploited for therapeutic repurposing and discovery. We compiled a library of compounds that are human ingestible with minimal side effects, followed by an 'all-compounds' vs 'all-proteins' fragment-based multitarget docking with dynamics screen to construct compound-proteome interaction matrices that were then analyzed to determine similarity of drug behavior. The proteomic signature similarity of drugs is then ranked to make putative drug predictions for all indications in a shotgun manner. RESULTS We have previously applied this platform with success in both retrospective benchmarking and prospective validation, and to understand the effect of druggable protein classes on repurposing accuracy. Here we use the CANDO platform to analyze and determine the contribution of multitargeting (polypharmacology) to drug repurposing benchmarking accuracy. Taken together with the previous work, our results indicate that a large number of protein structures with diverse fold space and a specific polypharmacological interactome is necessary for accurate drug predictions using our proteomic and evolutionary drug discovery and repurposing platform. CONCLUSION These results have implications for future drug development and repurposing in the context of polypharmacology.
Collapse
Affiliation(s)
- Gaurav Chopra
- Department of Chemistry, Purdue University, West Lafayette, IN, USA.
| | - Ram Samudrala
- Department of Biomedical Informatics, SUNY, Buffalo, NY, USA.
| |
Collapse
|
121
|
Beaufay C, Hérent MF, Quetin-Leclercq J, Bero J. In vivo anti-malarial activity and toxicity studies of triterpenic esters isolated form Keetia leucantha and crude extracts. Malar J 2017; 16:406. [PMID: 29017554 PMCID: PMC5635585 DOI: 10.1186/s12936-017-2054-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Accepted: 10/05/2017] [Indexed: 12/03/2022] Open
Abstract
BACKGROUND Considering the need for new anti-malarial drugs, further investigations on Keetia leucantha (Rubiaceae), an in vitro antiplasmodial plant traditionally used to treat malaria, were carried out. This paper aimed to assess the in vivo anti-malarial efficacy of K. leucantha triterpenic esters previously identified as the most in vitro active components against Plasmodium falciparum and their potential toxicity as well as those of anti-malarial extracts. RESULTS These eight triterpenic esters and the major antiplasmodial triterpenic acids, ursolic and oleanolic acids, were quantified in the twigs dichloromethane extract by validated HPLC-UV methods. They account for about 19% of this extract (16.9% for acids and 1.8% for esters). These compounds were also identified in trace in the twigs decoction by HPLC-HRMS. Results also showed that extracts and esters did not produce any haemolysis, and were devoid of any acute toxicity at a total cumulative dose of 800 and 150 mg/kg respectively. Moreover, esters given intraperitoneally at 50 mg/kg/day to Plasmodium berghei-infected mice showed a very significant (p < 0.01) parasitaemia inhibition (27.8 ± 5.4%) on day 4 post-infection compared to vehicle-treated mice. CONCLUSIONS These results bring out new information on the safety of K. leucantha use and on the identification of anti-malarial compounds from its dichloromethane extract. Its activity can be explained by the presence of triterpenic acids and esters which in vivo activity and safety were demonstrated for the first time.
Collapse
Affiliation(s)
- Claire Beaufay
- Pharmacognosy Research Group, Louvain Drug Research Institute, Université Catholique de Louvain, Avenue E. Mounier 72, B1.72.03, 1200 Brussels, Belgium
| | - Marie-France Hérent
- Pharmacognosy Research Group, Louvain Drug Research Institute, Université Catholique de Louvain, Avenue E. Mounier 72, B1.72.03, 1200 Brussels, Belgium
| | - Joëlle Quetin-Leclercq
- Pharmacognosy Research Group, Louvain Drug Research Institute, Université Catholique de Louvain, Avenue E. Mounier 72, B1.72.03, 1200 Brussels, Belgium
| | - Joanne Bero
- Pharmacognosy Research Group, Louvain Drug Research Institute, Université Catholique de Louvain, Avenue E. Mounier 72, B1.72.03, 1200 Brussels, Belgium
| |
Collapse
|
122
|
Aderibigbe BA. Metal-Based Nanoparticles for the Treatment of Infectious Diseases. Molecules 2017; 22:E1370. [PMID: 28820471 PMCID: PMC6152252 DOI: 10.3390/molecules22081370] [Citation(s) in RCA: 125] [Impact Index Per Article: 17.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Accepted: 08/15/2017] [Indexed: 11/16/2022] Open
Abstract
Infectious diseases can be transmitted and they cause a significant burden on public health globally. They are the greatest world killers and it is estimated that they are responsible for the demise of over 17 million people annually. The impact of these diseases is greater in the developing countries. People with compromised immune systems and children are the most affected. Infectious diseases may be caused by bacteria, viruses, and protozoa. The treatment of infectious diseases is hampered by simultaneous resistance to multiple drugs, indicating that there is a serious and pressing need to develop new therapeutics that can overcome drug resistance. This review will focus on the recent reports of metal-based nanoparticles that are potential therapeutics for the treatment of infectious diseases and their biological efficacy (in vitro and in vivo).
Collapse
Affiliation(s)
- Blessing Atim Aderibigbe
- Department of Chemistry, University of Fort Hare, Alice Campus, Eastern Cape 5700, South Africa.
| |
Collapse
|
123
|
Pollo LAE, de Moraes MH, Cisilotto J, Creczynski-Pasa TB, Biavatti MW, Steindel M, Sandjo LP. Synthesis and in vitro evaluation of Ca 2+ channel blockers 1,4-dihydropyridines analogues against Trypanosoma cruzi and Leishmania amazonensis: SAR analysis. Parasitol Int 2017; 66:789-797. [PMID: 28801098 DOI: 10.1016/j.parint.2017.08.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2017] [Revised: 08/07/2017] [Accepted: 08/08/2017] [Indexed: 11/26/2022]
Abstract
Drugs containing the1,4-dihydropyridine (DHP) core have recently attracted attention concerning their antiparasitic effect against various species of Leishmania and Trypanosoma. This approach named drugs repositioning led to interesting results, which have prompted us to prepare 21 DHP's analogues. The 1,4-DHP scaffold was decorated with different function groups at tree points including the nitrogen atom (NH and N-phenyl), the aryl group attached to C-4 (various substituted aryl residues) and the carbon atoms 2 and 6 (bearing Ph or Me groups). Moreover, the products were evaluated for their cytotoxicity on three cancer and a non-tumoral cell lines. Only 6 of them were antiproliferative and their weak effect (CC50 comprised between 27 and 98μM) suggested these DHPs as good candidates against the intracellular amastigote forms of L. amazonensis and T. cruzi. L. amazonensis was sensitive to DHPs 5, 11 and 15 (IC50 values at 15.11, 45.70 and 53.13μM, respectively) while 12 of them displayed significant to moderate trypanocidal activities against T. cruzi. The best trypanocidal activities were obtained with compounds 2, 18 and 21 showing IC50 values at 4.95, 5.44, and 6.64μM, respectively. A part of the N-phenylated DHPs showed a better selectivity than their NH analogues towards THP-1 cells. 4-Chlorophenyl, 4-nitrophenyl and 3-nitrophenyl residues attached to the carbon atom 4 turned to be important sub-structures for the antitrypanosomal activity.
Collapse
Affiliation(s)
- Luiz A E Pollo
- Department of Pharmaceutical Sciences, Universidade Federal de Santa Catarina, 88040-900 Florianópolis, SC, Brazil
| | - Milene H de Moraes
- Department of Microbiology, Immunology and Parasitology, Universidade Federal de Santa Catarina, 88040-900 Florianópolis, SC, Brazil
| | - Júlia Cisilotto
- Department of Pharmaceutical Sciences, Universidade Federal de Santa Catarina, 88040-900 Florianópolis, SC, Brazil
| | - Tânia B Creczynski-Pasa
- Department of Pharmaceutical Sciences, Universidade Federal de Santa Catarina, 88040-900 Florianópolis, SC, Brazil
| | - Maique W Biavatti
- Department of Pharmaceutical Sciences, Universidade Federal de Santa Catarina, 88040-900 Florianópolis, SC, Brazil
| | - Mario Steindel
- Department of Microbiology, Immunology and Parasitology, Universidade Federal de Santa Catarina, 88040-900 Florianópolis, SC, Brazil.
| | - Louis P Sandjo
- Department of Pharmaceutical Sciences, Universidade Federal de Santa Catarina, 88040-900 Florianópolis, SC, Brazil.
| |
Collapse
|
124
|
Bordignon A, Frédérich M, Ledoux A, Campos PE, Clerc P, Hermann T, Quetin-Leclercq J, Cieckiewicz E. In vitro antiplasmodial and cytotoxic activities of sesquiterpene lactones from Vernonia fimbrillifera Less. (Asteraceae). Nat Prod Res 2017; 32:1463-1466. [PMID: 28693338 DOI: 10.1080/14786419.2017.1350665] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Due to the in vitro antiplasmodial activity of leaf extracts from Vernonia fimbrillifera Less. (Asteraceae), a bioactivity-guided fractionation was carried out. Three sesquiterpene lactones were isolated, namely 8-(4'-hydroxymethacrylate)-dehydromelitensin (1), onopordopicrin (2) and 8α-[4'-hydroxymethacryloyloxy]-4-epi-sonchucarpolide (3). Their structures were elucidated by spectroscopic methods (1D and 2D NMR and MS analyses) and by comparison with published data. The isolated compounds exhibited antiplasmodial activity with IC50 values ≤ 5 μg/mL. Cytotoxicity of the compounds against a human cancer cell line (HeLa) and a mouse lung epithelial cell line (MLE12) was assessed to determine selectivity. Compound 3 displayed promising selective antiplasmodial activity (SI > 10).
Collapse
Affiliation(s)
- Annélise Bordignon
- a Laboratory of Pharmacognosy, CIRM , University of Liège , Liège , Belgium
| | - Michel Frédérich
- a Laboratory of Pharmacognosy, CIRM , University of Liège , Liège , Belgium
| | - Allison Ledoux
- a Laboratory of Pharmacognosy, CIRM , University of Liège , Liège , Belgium
| | - Pierre-Eric Campos
- b Laboratoire de Chimie des Substances Naturelles et de Sciences des Aliments (LCSNSA), Faculté des Sciences et Technologies , Université de La Réunion , Saint-Denis , La Réunion
| | - Patricia Clerc
- b Laboratoire de Chimie des Substances Naturelles et de Sciences des Aliments (LCSNSA), Faculté des Sciences et Technologies , Université de La Réunion , Saint-Denis , La Réunion
| | - Thomas Hermann
- c Secteur Nord , Parc National de La Réunion , Saint-Denis , La Réunion
| | - Joëlle Quetin-Leclercq
- d Pharmacognosy Research Group, Louvain Drug Research Institute , Université catholique de Louvain , Belgium
| | - Ewa Cieckiewicz
- a Laboratory of Pharmacognosy, CIRM , University of Liège , Liège , Belgium
| |
Collapse
|
125
|
Monzote L, Scull R, Cos P, Setzer WN. Essential Oil from Piper aduncum: Chemical Analysis, Antimicrobial Assessment, and Literature Review. MEDICINES 2017; 4:medicines4030049. [PMID: 28930264 PMCID: PMC5622384 DOI: 10.3390/medicines4030049] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/27/2017] [Revised: 06/28/2017] [Accepted: 06/28/2017] [Indexed: 12/11/2022]
Abstract
Background: The challenge in antimicrobial chemotherapy is to find safe and selective agents with potency that will not be compromised by previously developed resistance. Terrestrial plants could provide new leads to antibacterial, antifungal, or antiprotozoal activity. Methods: The essential oil (EO) of Piper aduncum L. (Piperaceae) from Cuba was analyzed by gas chromatography—mass spectrometry (GC-MS). A cluster analysis of P. aduncum EO compositions reported in the literature was carried out. The EO was screened against a panel of microorganisms (bacteria, fungi, parasitic protozoa) as well as for cytotoxicity against human cells. In addition, a review of scientific literature and a bibliometric study was also conducted. Results: A total of 90 compounds were identified in the EO, of which camphor (17.1%), viridiflorol (14.5%), and piperitone (23.7%) were the main components. The cluster analysis revealed at least nine different chemotypes. The EO did not show notable activity against bacteria or fungi, but was active against parasitic protozoa. Conclusions: The results from this study indicate P. aduncum from Cuba is a unique chemotype, support the importance of P. aduncum EOs as medicines, and demonstrate the promise of Cuban P. aduncum EO as a chemotherapeutic agent against parasitic protozoal infections.
Collapse
Affiliation(s)
- Lianet Monzote
- Parasitology Department, Institute of Tropical Medicine Pedro Kouri, 10400 Havana, Cuba.
| | - Ramón Scull
- Department of Chemistry, Institute of Pharmacy and Food, University of Havana, 13600 Havana, Cuba.
| | - Paul Cos
- Laboratory for Microbiology, Parasitology and Hygiene, Faculty of Pharmaceutical, Biomedical and Veterinary Sciences, Antwerp University, 2610 Wilrijk, Belgium.
| | - William N Setzer
- Department of Chemistry, University of Alabama in Huntsville, Huntsville, AL 35899, USA.
| |
Collapse
|
126
|
Wachsmuth LM, Johnson MG, Gavenonis J. Essential multimeric enzymes in kinetoplastid parasites: A host of potentially druggable protein-protein interactions. PLoS Negl Trop Dis 2017; 11:e0005720. [PMID: 28662026 PMCID: PMC5507555 DOI: 10.1371/journal.pntd.0005720] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2017] [Revised: 07/12/2017] [Accepted: 06/16/2017] [Indexed: 12/18/2022] Open
Abstract
Parasitic diseases caused by kinetoplastid parasites of the genera Trypanosoma and Leishmania are an urgent public health crisis in the developing world. These closely related species possess a number of multimeric enzymes in highly conserved pathways involved in vital functions, such as redox homeostasis and nucleotide synthesis. Computational alanine scanning of these protein-protein interfaces has revealed a host of potentially ligandable sites on several established and emerging anti-parasitic drug targets. Analysis of interfaces with multiple clustered hotspots has suggested several potentially inhibitable protein-protein interactions that may have been overlooked by previous large-scale analyses focusing solely on secondary structure. These protein-protein interactions provide a promising lead for the development of new peptide and macrocycle inhibitors of these enzymes.
Collapse
Affiliation(s)
- Leah M. Wachsmuth
- Department of Chemistry, Dickinson College, Carlisle, Pennsylvania, United States of America
| | - Meredith G. Johnson
- Department of Chemistry, Dickinson College, Carlisle, Pennsylvania, United States of America
| | - Jason Gavenonis
- Department of Chemistry, Dickinson College, Carlisle, Pennsylvania, United States of America
- * E-mail:
| |
Collapse
|
127
|
Abongwa M, Martin RJ, Robertson AP. A BRIEF REVIEW ON THE MODE OF ACTION OF ANTINEMATODAL DRUGS. ACTA VET-BEOGRAD 2017; 67:137-152. [PMID: 29416226 DOI: 10.1515/acve-2017-0013] [Citation(s) in RCA: 62] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Anthelmintics are some of the most widely used drugs in veterinary medicine. Here we review the mechanism of action of these compounds on nematode parasites. Included are the older classes of compounds; the benzimidazoles, cholinergic agonists and macrocyclic lactones. We also consider newer anthelmintics, including emodepside, derquantel and tribendimidine. In the absence of vaccines for most parasite species, control of nematode parasites will continue to rely on anthelmintic drugs. As a consequence, vigilance in detecting drug resistance in parasite populations is required. Since resistance development appears almost inevitable, there is a continued and pressing need to fully understand the mode of action of these compounds. It is also necessary to identify new drug targets and drugs for the continued effective control of nematode parasites.
Collapse
Affiliation(s)
- Melanie Abongwa
- Department of Biomedical Sciences, College of Veterinary Medicine , Iowa State University , Ames , IA 50011 , United States of America
| | - Richard J. Martin
- Department of Biomedical Sciences, College of Veterinary Medicine , Iowa State University , Ames , IA 50011 , United States of America
| | - Alan P. Robertson
- Department of Biomedical Sciences, College of Veterinary Medicine , Iowa State University , Ames , IA 50011 , United States of America
| |
Collapse
|
128
|
An in silico functional annotation and screening of potential drug targets derived from Leishmania spp. hypothetical proteins identified by immunoproteomics. Exp Parasitol 2017; 176:66-74. [DOI: 10.1016/j.exppara.2017.03.005] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2016] [Revised: 02/03/2017] [Accepted: 03/17/2017] [Indexed: 12/18/2022]
|
129
|
Leite FHA, Froes TQ, da Silva SG, de Souza EIM, Vital-Fujii DG, Trossini GHG, Pita SSDR, Castilho MS. An integrated approach towards the discovery of novel non-nucleoside Leishmania major pteridine reductase 1 inhibitors. Eur J Med Chem 2017; 132:322-332. [DOI: 10.1016/j.ejmech.2017.03.043] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2017] [Revised: 03/18/2017] [Accepted: 03/22/2017] [Indexed: 10/19/2022]
|
130
|
Emami S, Tavangar P, Keighobadi M. An overview of azoles targeting sterol 14α-demethylase for antileishmanial therapy. Eur J Med Chem 2017; 135:241-259. [PMID: 28456033 DOI: 10.1016/j.ejmech.2017.04.044] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2017] [Revised: 04/11/2017] [Accepted: 04/18/2017] [Indexed: 02/07/2023]
Abstract
The azole antifungal drugs are an important class of chemotherapeutic agents with broad-spectrum of activity against yeasts and filamentous fungi, act in the ergosterol biosynthetic pathway through inhibition of the cytochrome P450-dependent enzyme sterol 14α-demethylase. Azole antifungals have also been repurposed for treatment of tropical protozoan infections including human leishmaniasis. Recent advances in molecular biology and computational chemistry areas have increased our knowledge about sterol biochemical pathway in Leishmania parasites. Based on the importance of sterol biosynthetic pathway in Leishmania parasites, we reviewed all studies reported on azoles for potential antileishmanial therapy along their structural and biological aspects. This review may help medicinal chemists for design of new azole-derived antileishmanial drugs.
Collapse
Affiliation(s)
- Saeed Emami
- Department of Medicinal Chemistry and Pharmaceutical Sciences Research Center, Faculty of Pharmacy, Mazandaran University of Medical Sciences, Sari, Iran.
| | - Pegah Tavangar
- Department of Medicinal Chemistry and Pharmaceutical Sciences Research Center, Faculty of Pharmacy, Mazandaran University of Medical Sciences, Sari, Iran
| | - Masoud Keighobadi
- Student Research Committee, Pharmaceutical Sciences Research Center, Faculty of Pharmacy, Mazandaran University of Medical Sciences, Sari, Iran
| |
Collapse
|
131
|
da Silva Caleffi G, de Oliveira JPG, da Paz Silva E, Olegário TR, Mendes RKS, Lima-Junior CG, Silva FPL, Martins FT, Vasconcellos MLADA. Synthesis and structural characterization by NMR and X-ray of new Morita-Baylis-Hillman adducts derived from 7-chloroquinoline. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2016.12.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
132
|
Singh SV, Manhas A, Kumar Y, Mishra S, Shanker K, Khan F, Srivastava K, Pal A. Antimalarial activity and safety assessment of Flueggea virosa leaves and its major constituent with special emphasis on their mode of action. Biomed Pharmacother 2017; 89:761-771. [PMID: 28273638 DOI: 10.1016/j.biopha.2017.02.056] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2016] [Revised: 02/06/2017] [Accepted: 02/16/2017] [Indexed: 10/20/2022] Open
Abstract
A clinical emergency stands due to the appearance of drug resistant Plasmodium strains necessitate novel and effective antimalarial chemotypes, where plants seem as the prime option, especially after the discovery of quinine and artemisinin. The present study was aimed towards bioprospecting leaves of Flueggea virosa for its antimalarial efficacy and active principles. Crude hydro-ethanolic extract along with solvent derived fractions were tested in vitro against Plasmodium falciparum CQ sensitive (3D7) and resistant (K1) strains, where all the fractions exhibited potential activity (IC50 values <10μg/mL) against both the strains. Interestingly, under in vivo conditions against P. berghei in Swiss mice, preferential chemo-suppression was recorded for crude hydro-ethanolic extract (77.38%) and ethyl acetate fraction (86.09%) at the dose of 500mg/kg body weight. Additionally, ethyl acetate fraction was found to be capable of normalizing the host altered pharmacological parameters and enhanced oxidative stress augmented during the infection. The bioactivity guided fractionation lead to the isolation of bergenin as a major and active constituent (IC50, 8.07±2.05μM) of ethyl acetate fraction with the inhibition of heme polymerization pathway of malaria parasite being one of the possible chemotherapeutic target. Furthermore, bergenin exhibited a moderate antimalarial activity against P. berghei and also ameliorated parasite induced systemic inflammation in host (mice). Safe toxicity profile elucidated through in vitro cytotoxicity and in silico ADME/T predications evidently suggest that bergenin possess drug like properties. Hence, the present study validates the traditional usage of F. indica as an antimalarial remedy and also insists for further chemical modifications of bergenin to obtain more effective antimalarial chemotypes.
Collapse
Affiliation(s)
- Shiv Vardan Singh
- In-vivo Testing Laboratory, Molecular Bioprospection Department, CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow 226015, India
| | - Ashan Manhas
- Parasitology Division, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Yogesh Kumar
- Molecular and Structural Biology Department, CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow 226015, India
| | - Sonali Mishra
- Anlaytical Chemistry Department, CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow 226015, India
| | - Karuna Shanker
- Anlaytical Chemistry Department, CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow 226015, India
| | - Feroz Khan
- Molecular and Structural Biology Department, CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow 226015, India
| | - Kumkum Srivastava
- Parasitology Division, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Anirban Pal
- In-vivo Testing Laboratory, Molecular Bioprospection Department, CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow 226015, India.
| |
Collapse
|
133
|
Valdeperez D, Wang T, Eußner JP, Weinert B, Hao J, Parak WJ, Dehnen S, Pelaz B. Polymer-coated nanoparticles: Carrier platforms for hydrophobic water- and air-sensitive metallo-organic compounds. Pharmacol Res 2017; 117:261-266. [DOI: 10.1016/j.phrs.2016.12.034] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/27/2016] [Revised: 12/19/2016] [Accepted: 12/22/2016] [Indexed: 11/17/2022]
|
134
|
Kasi D, Catherine C, Lee SW, Lee KH, Kim YJ, Ro Lee M, Ju JW, Kim DM. Cell-free translational screening of an expression sequence tag library of Clonorchis sinensis for novel antigen discovery. Biotechnol Prog 2017; 33:832-837. [PMID: 28127897 DOI: 10.1002/btpr.2440] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2016] [Revised: 12/10/2016] [Indexed: 12/12/2022]
Abstract
The rapidly evolving cloning and sequencing technologies have enabled understanding of genomic structure of parasite genomes, opening up new ways of combatting parasite-related diseases. To make the most of the exponentially accumulating genomic data, however, it is crucial to analyze the proteins encoded by these genomic sequences. In this study, we adopted an engineered cell-free protein synthesis system for large-scale expression screening of an expression sequence tag (EST) library of Clonorchis sinensis to identify potential antigens that can be used for diagnosis and treatment of clonorchiasis. To allow high-throughput expression and identification of individual genes comprising the library, a cell-free synthesis reaction was designed such that both the template DNA and the expressed proteins were co-immobilized on the same microbeads, leading to microbead-based linkage of the genotype and phenotype. This reaction configuration allowed streamlined expression, recovery, and analysis of proteins. This approach enabled us to identify 21 antigenic proteins. © 2017 American Institute of Chemical Engineers Biotechnol. Prog., 33:832-837, 2017.
Collapse
Affiliation(s)
- Devi Kasi
- Dept. of Chemical Engineering and Applied Chemistry, Chungnam National University, Daejeon, 305-764, Korea
| | - Christy Catherine
- Dept. of Chemical Engineering and Applied Chemistry, Chungnam National University, Daejeon, 305-764, Korea
| | - Seung-Won Lee
- Dept. of Chemical Engineering and Applied Chemistry, Chungnam National University, Daejeon, 305-764, Korea
| | - Kyung-Ho Lee
- Dept. of Chemical Engineering and Applied Chemistry, Chungnam National University, Daejeon, 305-764, Korea
| | - Yu Jung Kim
- Div. of Malaria and Parasitic Diseases, National Institute of Health, Osong, 361-951, Korea
| | - Myeong Ro Lee
- Div. of Malaria and Parasitic Diseases, National Institute of Health, Osong, 361-951, Korea
| | - Jung Won Ju
- Div. of Malaria and Parasitic Diseases, National Institute of Health, Osong, 361-951, Korea
| | - Dong-Myung Kim
- Dept. of Chemical Engineering and Applied Chemistry, Chungnam National University, Daejeon, 305-764, Korea
| |
Collapse
|
135
|
Vermelho AB, Capaci GR, Rodrigues IA, Cardoso VS, Mazotto AM, Supuran CT. Carbonic anhydrases from Trypanosoma and Leishmania as anti-protozoan drug targets. Bioorg Med Chem 2017; 25:1543-1555. [PMID: 28161253 DOI: 10.1016/j.bmc.2017.01.034] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2016] [Revised: 01/18/2017] [Accepted: 01/19/2017] [Indexed: 01/24/2023]
Abstract
Trypanosoma cruzi and Leishmania spp. are protozoa of the Trypanosomatidae family, being the etiological agents of two widespread parasitic diseases, Chagas disease and leishmaniasis, respectively. Both parasites are the focus of worldwide research with the aim to find effective and less toxic drugs than the few ones available so far, and for controlling the spread of the diseases. Carbonic anhydrases (CAs, EC 4.2.1.1) belonging to the α- and β-class were recently identified in these protozoans and several studies suggested that they could be new targets for drug development. Sulfonamide, thiol and hydroxamate inhibitors effectively inhibited the α-CA from T. cruzi (TcCA) and the β-CA from L. donovani chagasi (LdccCA) in vitro, and some of them also showed in vivo efficacy in inhibiting the growth of the parasites in animal models of Chagas disease and leishmaniasis. As few therapeutic options are presently available for these orphan diseases, protozoan CA inhibition may represent a novel strategy to address this stringent health problem.
Collapse
Affiliation(s)
- Alane B Vermelho
- BIOINOVAR - Biotechnology Laboratories: Biocatalysis, Bioproducts and Bioenergy, Institute of Microbiology Paulo de Goes, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.
| | - Giseli R Capaci
- School of Science and Technology and Graduate Studies in Science Education Program, University of Rio Grande, Duque de Caxias, RJ, Brazil
| | - Igor A Rodrigues
- Department of Natural Products and Food, School of Pharmacy, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Verônica S Cardoso
- BIOINOVAR - Biotechnology Laboratories: Biocatalysis, Bioproducts and Bioenergy, Institute of Microbiology Paulo de Goes, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Ana Maria Mazotto
- BIOINOVAR - Biotechnology Laboratories: Biocatalysis, Bioproducts and Bioenergy, Institute of Microbiology Paulo de Goes, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Claudiu T Supuran
- Neurofarba Department and Laboratorio di Chimica Bioinorganica, Università degli Studi di Firenze, Via U. Schiff 6, 50019 Sesto Fiorentino, Florence, Italy.
| |
Collapse
|
136
|
Hazra S, Ghosh S, Hazra B. Phytochemicals With Antileishmanial Activity. STUDIES IN NATURAL PRODUCTS CHEMISTRY 2017. [DOI: 10.1016/b978-0-444-63931-8.00008-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
|
137
|
Molecular Mechanism of Drug Resistance. DRUG RESISTANCE IN BACTERIA, FUNGI, MALARIA, AND CANCER 2017. [PMCID: PMC7122190 DOI: 10.1007/978-3-319-48683-3_3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The treatment of microbial infections has suffered greatly in this present century of pathogen dominance. Inspite of extensive research efforts and scientific advancements, the worldwide emergence of microbial tolerance continues to plague survivability. The innate property of microbe to resist any antibiotic due to evolution is the virtue of intrinsic resistance. However, the classical genetic mutations and extrachromosomal segments causing gene exchange attribute to acquired tolerance development. Rampant use of antimicrobials causes certain selection pressure which increases the resistance frequency. Genomic duplication, enzymatic site modification, target alteration, modulation in membrane permeability, and the efflux pump mechanism are the major contributors of multidrug resistance (MDR), specifically antibiotic tolerance development. MDRs will lead to clinical failures for treatment and pose health crisis. The molecular mechanisms of antimicrobial resistance are diverse as well as complex and still are exploited for new discoveries in order to prevent the surfacing of “superbugs.” Antimicrobial chemotherapy has diminished the threat of infectious diseases to some extent. To avoid the indiscriminate use of antibiotics, the new ones licensed for use have decreased with time. Additionally, in vitro assays and genomics for anti-infectives are novel approaches used in resolving the issues of microbial resistance. Proper use of drugs can keep it under check and minimize the risk of MDR spread.
Collapse
|
138
|
Sangshetti JN, Shinde DB, Kulkarni A, Arote R. Two decades of antifilarial drug discovery: a review. RSC Adv 2017. [DOI: 10.1039/c7ra01857f] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Filariasis is one of the oldest, most debilitating, disabling, and disfiguring neglected tropical diseases with various clinical manifestations and a low rate of mortality, but has a high morbidity rate, which results in social stigma.
Collapse
Affiliation(s)
| | | | | | - Rohidas Arote
- Department of Molecular Genetics
- School of Dentistry
- Seoul National University
- Seoul
- Republic of Korea
| |
Collapse
|
139
|
The Role of Natural Products in Drug Discovery and Development against Neglected Tropical Diseases. Molecules 2016; 22:molecules22010058. [PMID: 28042865 PMCID: PMC6155950 DOI: 10.3390/molecules22010058] [Citation(s) in RCA: 104] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Revised: 12/23/2016] [Accepted: 12/27/2016] [Indexed: 12/20/2022] Open
Abstract
Endemic in 149 tropical and subtropical countries, neglected tropical diseases (NTDs) affect more than 1 billion people annually, including 875 million children in developing economies. These diseases are also responsible for over 500,000 deaths per year and are characterized by long-term disability and severe pain. The impact of the combined NTDs closely rivals that of malaria and tuberculosis. Current treatment options are associated with various limitations including widespread drug resistance, severe adverse effects, lengthy treatment duration, unfavorable toxicity profiles, and complicated drug administration procedures. Natural products have been a valuable source of drug regimens that form the cornerstone of modern pharmaceutical care. In this review, we highlight the potential that remains untapped in natural products as drug leads for NTDs. We cover natural products from plant, marine, and microbial sources including natural-product-inspired semi-synthetic derivatives which have been evaluated against the various causative agents of NTDs. Our coverage is limited to four major NTDs which include human African trypanosomiasis (sleeping sickness), leishmaniasis, schistosomiasis and lymphatic filariasis.
Collapse
|
140
|
Amaral RG, Baldissera MD, Grando TH, Couto JC, Posser CP, Ramos AP, Sagrillo MR, Vaucher RA, Da Silva AS, Becker AP, Monteiro SG. Combination of the essential oil constituents α-pinene and β-caryophyllene as a potentiator of trypanocidal action on Trypanosoma evansi. J Appl Biomed 2016. [DOI: 10.1016/j.jab.2016.04.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
|
141
|
Liu GL, Hu Y, Chen XH, Wang GX, Ling F. Synthesis and anthelmintic activity of coumarin–imidazole hybrid derivatives against Dactylogyrus intermedius in goldfish. Bioorg Med Chem Lett 2016; 26:5039-5043. [DOI: 10.1016/j.bmcl.2016.08.090] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2016] [Revised: 08/08/2016] [Accepted: 08/29/2016] [Indexed: 12/18/2022]
|
142
|
Sueth-Santiago V, Moraes JDBB, Sobral Alves ES, Vannier-Santos MA, Freire-de-Lima CG, Castro RN, Mendes-Silva GP, Del Cistia CDN, Magalhães LG, Andricopulo AD, Sant´Anna CMR, Decoté-Ricardo D, Freire de Lima ME. The Effectiveness of Natural Diarylheptanoids against Trypanosoma cruzi: Cytotoxicity, Ultrastructural Alterations and Molecular Modeling Studies. PLoS One 2016; 11:e0162926. [PMID: 27658305 PMCID: PMC5033595 DOI: 10.1371/journal.pone.0162926] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2016] [Accepted: 08/11/2016] [Indexed: 12/13/2022] Open
Abstract
Curcumin (CUR) is the major constituent of the rhizomes of Curcuma longa and has been widely investigated for its chemotherapeutic properties. The well-known activity of CUR against Leishmania sp., Trypanosoma brucei and Plasmodium falciparum led us to investigate its activity against Trypanosoma cruzi. In this work, we tested the cytotoxic effects of CUR and other natural curcuminoids on different forms of T. cruzi, as well as the ultrastructural changes induced in epimastigote form of the parasite. CUR was verified as the curcuminoid with more significant trypanocidal properties (IC50 10.13 μM on epimastigotes). Demethoxycurcumin (DMC) was equipotent to CUR (IC50 11.07 μM), but bisdemethoxycurcumin (BDMC) was less active (IC50 45.33 μM) and cyclocurcumin (CC) was inactive. In the experiment with infected murine peritoneal macrophages all diarylheptanoids were more active than the control in the inhibition of the trypomastigotes release. The electron microscopy images showed ultrastructural changes associated with the cytoskeleton of the parasite, indicating tubulin as possible target of CUR in T. cruzi. The results obtained by flow cytometry analysis of DNA content of the parasites treated with natural curcuminoids suggested a mechanism of action on microtubules related to the paclitaxel`s mode of action. To better understand the mechanism of action highlighted by electron microscopy and flow cytometry experiments we performed the molecular docking of natural curcuminoids on tubulin of T. cruzi in a homology model and the results obtained showed that the observed interactions are in accordance with the IC50 values found, since there CUR and DMC perform similar interactions at the binding site on tubulin while BDMC do not realize a hydrogen bond with Lys163 residue due to the absence of methoxyl groups. These results indicate that trypanocidal properties of CUR may be related to the cytoskeletal alterations.
Collapse
Affiliation(s)
- Vitor Sueth-Santiago
- Universidade Federal Rural do Rio de Janeiro, Instituto de Ciências Exatas, Departamento de Química, BR 465, Km 07, CEP: 23.890-000, Seropédica, RJ, Brazil
| | - Julliane de B. B. Moraes
- Universidade Federal Rural do Rio de Janeiro, Instituto de Veterinária, Departamento de Microbiologia e Imunologia Veterinária, BR 465, Km 07, CEP: 23.890-000, Seropédica, RJ, Brazil
| | - Eliomara Sousa Sobral Alves
- Laboratório de Biologia Parasitária, Centro de Pesquisas Gonçalo Moniz (CPqGM-Fiocruz), Rua Waldemar Falcão, 121, Candeal, CEP: 40.296-710, Salvador, BA, Brazil
| | - Marcos André Vannier-Santos
- Laboratório de Biologia Parasitária, Centro de Pesquisas Gonçalo Moniz (CPqGM-Fiocruz), Rua Waldemar Falcão, 121, Candeal, CEP: 40.296-710, Salvador, BA, Brazil
| | - Célio G. Freire-de-Lima
- Universidade Federal do Rio de Janeiro, Instituto de Biofísica Carlos Chagas Filho, Ilha do Fundão, Cidade Universitária, CEP: 21.941-902, Rio de Janeiro, RJ, Brazil
| | - Rosane N. Castro
- Universidade Federal Rural do Rio de Janeiro, Instituto de Ciências Exatas, Departamento de Química, BR 465, Km 07, CEP: 23.890-000, Seropédica, RJ, Brazil
| | - Gustavo Peron Mendes-Silva
- Universidade Federal Rural do Rio de Janeiro, Instituto de Ciências Exatas, Departamento de Química, BR 465, Km 07, CEP: 23.890-000, Seropédica, RJ, Brazil
| | - Catarina de Nigris Del Cistia
- Universidade Federal Rural do Rio de Janeiro, Instituto de Ciências Exatas, Departamento de Matemática, BR 465, Km 07, CEP: 23.890-000, Seropédica, RJ, Brazil
| | - Luma Godoy Magalhães
- Laboratório de Química Medicinal e Computacional, Centro de Pesquisa e Inovação em Biodiversidade e Fármacos, Instituto de Física de São Carlos, Universidade de São Paulo, CP 396, CEP: 13.560-970, São Carlos, SP, Brazil
| | - Adriano Defini Andricopulo
- Laboratório de Química Medicinal e Computacional, Centro de Pesquisa e Inovação em Biodiversidade e Fármacos, Instituto de Física de São Carlos, Universidade de São Paulo, CP 396, CEP: 13.560-970, São Carlos, SP, Brazil
| | - Carlos Mauricio R. Sant´Anna
- Universidade Federal Rural do Rio de Janeiro, Instituto de Ciências Exatas, Departamento de Química, BR 465, Km 07, CEP: 23.890-000, Seropédica, RJ, Brazil
| | - Debora Decoté-Ricardo
- Universidade Federal Rural do Rio de Janeiro, Instituto de Veterinária, Departamento de Microbiologia e Imunologia Veterinária, BR 465, Km 07, CEP: 23.890-000, Seropédica, RJ, Brazil
- * E-mail: (MEFL); (DDR)
| | - Marco Edilson Freire de Lima
- Universidade Federal Rural do Rio de Janeiro, Instituto de Ciências Exatas, Departamento de Química, BR 465, Km 07, CEP: 23.890-000, Seropédica, RJ, Brazil
- * E-mail: (MEFL); (DDR)
| |
Collapse
|
143
|
Antiplasmodial activity of flavan derivatives from rootbark of Cassia abbreviata Oliv. JOURNAL OF SAUDI CHEMICAL SOCIETY 2016. [DOI: 10.1016/j.jscs.2012.10.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
144
|
In Vitro Antileishmanial Activity of Sterols from Trametes versicolor (Bres. Rivarden). Molecules 2016; 21:molecules21081045. [PMID: 27517895 PMCID: PMC6273698 DOI: 10.3390/molecules21081045] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2016] [Revised: 08/01/2016] [Accepted: 08/05/2016] [Indexed: 12/11/2022] Open
Abstract
Two ergostanes, 5α,8α-epidioxy-22E-ergosta-6,22-dien-3β-ol (1) and 5α-ergost-7,22-dien-3β-ol (2), and a lanostane, 3β-hydroxylanostan-8,24-diene-21-oic acid (trametenolic acid) (3), were isolated from an n-hexane extract prepared from the fruiting body of Trametes versicolor (Bres. Rivarden). The activity of the isolated sterols was evaluated against promastigotes and amastigotes of Leishmania amazonensis Lainson and Shaw, 1972. The lanostane, compound (3), showed the best inhibitory response (IC50 promastigotes 2.9 ± 0.1 μM and IC50 amastigotes 1.6 ± 0.1 μM). This effect was 25-fold higher compared with its cytotoxic effect on peritoneal macrophages from BALB/c mice. Therefore, trametenolic acid could be regarded as a promising lead for the synthesis of compounds with antileishmanial activity.
Collapse
|
145
|
Amoa-Bosompem M, Ohashi M, Mosore MT, Agyapong J, Tung NH, Kwofie KD, Ayertey F, Owusu KBA, Tuffour I, Atchoglo P, Djameh GI, Azerigyik FA, Botchie SK, Anyan WK, Appiah-Opong R, Uto T, Morinaga O, Appiah AA, Ayi I, Shoyama Y, Boakye DA, Ohta N. In vitro anti-Leishmania activity of tetracyclic iridoids from Morinda lucida, benth. Trop Med Health 2016; 44:25. [PMID: 27536194 PMCID: PMC4974772 DOI: 10.1186/s41182-016-0026-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2016] [Accepted: 07/20/2016] [Indexed: 02/03/2023] Open
Abstract
Leishmaniasis is an infectious disease transmitted by the sand fly. It is caused by over 20 different species of Leishmania and has affected over 14 million people worldwide. One of the main forms of control of leishmaniasis is chemotherapy, but this is limited by the high cost and/or toxicity of available drugs. We previously found three novel compounds with an iridoid tetracyclic skeleton to have activity against trypanosome parasites. In this study, we determined the activity of the three anti-trypanosome compounds against Leishmania using field strain, 010, and the lab strain Leishmania hertigi. The minimum inhibitory concentration (MIC) of the compounds against 010 was determined by microscopy while the IC50 of compounds against L. hertigi was determined by fluorescence-activated cell sorting with Guava viacount analysis. We found two of the three compounds, molucidin and ML-F52, to have anti-Leishmania activity against both strains. The fluor-microscope observation with DAPI stain revealed that both Molucidin and ML-F52 induced abnormal parasites with two sets of nucleus and kinetoplast in a cell, suggesting that compounds might inhibit cytokinesis in Leishmania parasites. Molucidin and ML-F52 might be good lead compounds for the development of new anti-Leishmania chemotherapy.
Collapse
Affiliation(s)
- Michael Amoa-Bosompem
- Noguchi Memorial Institute for Medical Research, College of Health Sciences, University of Ghana, P. O. Box LG 581, Legon, Ghana
| | - Mitsuko Ohashi
- Noguchi Memorial Institute for Medical Research, College of Health Sciences, University of Ghana, P. O. Box LG 581, Legon, Ghana
- Section of Environmental Parasitology, Faculty of Medicine, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8510 Japan
| | - Mba-Tihssommah Mosore
- Noguchi Memorial Institute for Medical Research, College of Health Sciences, University of Ghana, P. O. Box LG 581, Legon, Ghana
| | - Jeffrey Agyapong
- Noguchi Memorial Institute for Medical Research, College of Health Sciences, University of Ghana, P. O. Box LG 581, Legon, Ghana
| | - Nguyen Huu Tung
- Faculty of Pharmaceutical Sciences, Nagasaki International University, 2825-7 Huis Ten Bosch, Sasebo, Nagasaki 859-3298 Japan
| | - Kofi D. Kwofie
- Noguchi Memorial Institute for Medical Research, College of Health Sciences, University of Ghana, P. O. Box LG 581, Legon, Ghana
- Section of Environmental Parasitology, Faculty of Medicine, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8510 Japan
| | - Frederick Ayertey
- Centre for Plant Medicine Research, P. O. Box 73, Mampong - Akuapem, Ghana
| | - Kofi Baffuor-Awuah Owusu
- Noguchi Memorial Institute for Medical Research, College of Health Sciences, University of Ghana, P. O. Box LG 581, Legon, Ghana
| | - Isaac Tuffour
- Noguchi Memorial Institute for Medical Research, College of Health Sciences, University of Ghana, P. O. Box LG 581, Legon, Ghana
| | - Philip Atchoglo
- Noguchi Memorial Institute for Medical Research, College of Health Sciences, University of Ghana, P. O. Box LG 581, Legon, Ghana
| | - Georgina I. Djameh
- Noguchi Memorial Institute for Medical Research, College of Health Sciences, University of Ghana, P. O. Box LG 581, Legon, Ghana
| | - Faustus A. Azerigyik
- Noguchi Memorial Institute for Medical Research, College of Health Sciences, University of Ghana, P. O. Box LG 581, Legon, Ghana
| | - Senyo K. Botchie
- Noguchi Memorial Institute for Medical Research, College of Health Sciences, University of Ghana, P. O. Box LG 581, Legon, Ghana
| | - William K. Anyan
- Noguchi Memorial Institute for Medical Research, College of Health Sciences, University of Ghana, P. O. Box LG 581, Legon, Ghana
| | - Regina Appiah-Opong
- Noguchi Memorial Institute for Medical Research, College of Health Sciences, University of Ghana, P. O. Box LG 581, Legon, Ghana
| | - Takuhiro Uto
- Faculty of Pharmaceutical Sciences, Nagasaki International University, 2825-7 Huis Ten Bosch, Sasebo, Nagasaki 859-3298 Japan
| | - Osamu Morinaga
- Faculty of Pharmaceutical Sciences, Nagasaki International University, 2825-7 Huis Ten Bosch, Sasebo, Nagasaki 859-3298 Japan
| | - Alfred. A. Appiah
- Centre for Plant Medicine Research, P. O. Box 73, Mampong - Akuapem, Ghana
| | - Irene Ayi
- Noguchi Memorial Institute for Medical Research, College of Health Sciences, University of Ghana, P. O. Box LG 581, Legon, Ghana
| | - Yukihiro Shoyama
- Faculty of Pharmaceutical Sciences, Nagasaki International University, 2825-7 Huis Ten Bosch, Sasebo, Nagasaki 859-3298 Japan
| | - Daniel A Boakye
- Noguchi Memorial Institute for Medical Research, College of Health Sciences, University of Ghana, P. O. Box LG 581, Legon, Ghana
| | - Nobuo Ohta
- Section of Environmental Parasitology, Faculty of Medicine, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8510 Japan
| |
Collapse
|
146
|
|
147
|
Banfi FF, Guedes KDS, Andrighetti CR, Aguiar AC, Debiasi BW, Noronha JDC, Rodrigues DDJ, Júnior GMV, Sanchez BAM. Antiplasmodial and Cytotoxic Activities of Toad Venoms from Southern Amazon, Brazil. THE KOREAN JOURNAL OF PARASITOLOGY 2016; 54:415-21. [PMID: 27658592 PMCID: PMC5040077 DOI: 10.3347/kjp.2016.54.4.415] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/01/2016] [Revised: 05/03/2016] [Accepted: 05/26/2016] [Indexed: 12/17/2022]
Abstract
The drug-resistance of malaria parasites is the main problem in the disease control. The huge Brazilian biodiversity promotes the search for new compounds, where the animal kingdom is proving to be a promising source of bioactive compounds. The main objective of this study was to evaluate the antiplasmodial and cytotoxic activity of the compounds obtained from the toad venoms of Brazilian Amazon. Toad venoms were collected from the secretion of Rhinella marina and Rhaebo guttatus in Mato Grosso State, Brazil. The powder was extracted at room temperature, yielding 2 extracts (RG and RM) and a substance ('1') identified as a bufadienolide, named telocinobufagin. Growth inhibition, intraerythrocytic development, and parasite morphology were evaluated in culture by microscopic observations of Giemsa-stained thin blood films. Cytotoxicity was determined against HepG2 and BGM cells by MTT and neutral red assays. The 2 extracts and the pure substance ('1') tested were active against chloroquine-resistant Plasmodium falciparum strain, demonstrating lower IC50 values. In cytotoxic tests, the 2 extracts and substance '1' showed pronounced lethal effects on chloroquine-resistant P. faciparum strain and low cytotoxic effect, highlighting toad parotoid gland secretions as a promising source of novel lead antiplasmodial compounds.
Collapse
Affiliation(s)
- Felipe Finger Banfi
- Universidade Federal de Mato Grosso, Instituto de Ciências da Saúde, Sinop, MT, Brazil
| | - Karla de Sena Guedes
- Universidade Federal de Mato Grosso, Instituto de Ciências da Saúde, Sinop, MT, Brazil
| | | | - Ana Carolina Aguiar
- Laboratório de Química Medicinal e Experimental, Universidade de São Paulo, São Carlos, SP, Brazil
| | - Bryan Wender Debiasi
- Universidade Federal de Mato Grosso, Instituto de Ciências Naturais, Humanas e Sociais, Sinop, MT, Brazil
| | - Janaina da Costa Noronha
- Universidade Federal de Mato Grosso, Instituto de Ciências Naturais, Humanas e Sociais, Sinop, MT, Brazil
| | | | | | | |
Collapse
|
148
|
Leite FHA, Santiago PBGDS, Froes TQ, da Silva Filho J, da Silva SG, Ximenes RM, de Faria AR, Brondani DJ, de Albuquerque JFC, Castilho MS. Structure-guided discovery of thiazolidine-2,4-dione derivatives as a novel class of Leishmania major pteridine reductase 1 inhibitors. Eur J Med Chem 2016; 123:639-648. [PMID: 27517809 DOI: 10.1016/j.ejmech.2016.07.060] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2016] [Revised: 07/20/2016] [Accepted: 07/24/2016] [Indexed: 10/21/2022]
Abstract
Leishmania major, as other protozoan parasites, plague human kind since pre-historic times but it remains a worldwide ailment for which the therapeutic arsenal remains scarce. Although L. major is pteridine- and purine-auxotroph, well-established folate biosynthesis inhibitors, such as methotrexate, have poor effect over the parasite survival. The lack of efficiency is related to an alternative biochemical pathway in which pteridine reductase 1 (PTR1) plays a major role. For this reason, this enzyme has been considered a promising target for anti-leishmanial drug development and several inhibitors that share the substrate scaffold have been reported. In order to design a novel class of PTR1 inhibitors, we employed the thiazolidinone ring as a bioisosteric replacement for pteridine/purine ring. Among seven novel thiazolidine-2,4-dione derivatives reported herein, 2d was identified as the most promising lead by thermal shift assays (ΔTm = 11 °C, p = 0,01). Kinetic assays reveal that 2d has IC50 = 44.67 ± 1.74 μM and shows a noncompetitive behavior. This information guided docking studies and molecular dynamics simulations (50 000 ps) that supports 2d putative binding profile (H-bonding to Ser-111 and Leu-66) and shall be useful to design more potent inhibitors.
Collapse
Affiliation(s)
- Franco Henrique A Leite
- Programa de Pós-graduação em Biotecnologia - PPGBiotec, Universidade Estadual de Feira de Santana, Brazil
| | | | | | | | | | - Rafael M Ximenes
- Departamento de Antibióticos, Universidade Federal de Pernambuco, Brazil
| | | | | | | | - Marcelo Santos Castilho
- Programa de Pós-graduação em Biotecnologia - PPGBiotec, Universidade Estadual de Feira de Santana, Brazil; Faculdade de Farmácia, Universidade Federal da Bahia, Brazil.
| |
Collapse
|
149
|
Roca-Mézquita C, Graniel-Sabido M, Moo-Puc RE, Leon-Déniz LV, Gamboa-León R, Arjona-Ruiz C, Tun-Garrido J, Mirón-López G, Mena-Rejón GJ. ANTIPROTOZOAL ACTIVITY OF EXTRACTS OF ELAEODENDRON TRICHOTOMUM (CELASTRACEAE). AFRICAN JOURNAL OF TRADITIONAL, COMPLEMENTARY, AND ALTERNATIVE MEDICINES : AJTCAM 2016; 13:162-165. [PMID: 28852732 PMCID: PMC5566140 DOI: 10.21010/ajtcam.v13i4.21] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
BACKGROUND Chagas disease, amebiasis, giardiasis and trichomoniasis represent a serious health problem in Latin America. The drugs employed to treat these illnesses produce important side effects and resistant strains have appeared. The present study was aimed to evaluate the antiprotozoal activity of leaves, stem bark and root bark of Elaeodendron trichotomum, a celastraceus, that is used in Mexico as an anti-infective in febrile-type diseases. MATERIALS AND METHODS Dichloromethane and methanol extracts of leaves, bark and roots of Elaeodendron trichotomum were tested against Entamoeba histolytica, Giardia lamblia, Trichomonas vaginalis, and Trypanosoma cruzi. A quantitative HPLC analysis of pristimerin and tingenone was performed. RESULTS The dichloromethane extract of roots was active against E. histolytica, G. lamblia, T. vaginalis, and T. cruzi, at IC50's of 0.80, 0.44, 0.46, and 2.68 μg/mL, respectively. The HPLC analysis revealed the presence of tingenone (3.84%) and pristimerin (0.14%). CONCLUSIONS The dichloromethane extract of the roots bark showed significant activity against all screened protozoa.
Collapse
Affiliation(s)
- Carolina Roca-Mézquita
- Facultad de Química, Universidad Autónoma de Yucatán, C. 41 No. 421 Col. Industrial, C.P. 97150, Mérida, Yucatán, México
| | - Manlio Graniel-Sabido
- Facultad de Química, Universidad Autónoma de Yucatán, C. 41 No. 421 Col. Industrial, C.P. 97150, Mérida, Yucatán, México
| | - Rosa E. Moo-Puc
- Unidad de Investigación Médica Yucatán, Unidad Médica de Alta Especialidad, Centro Médico “Ignacio García Téllez”, IMSS, C. 41, No. 439, Col. Industrial, C.P. 97150, Mérida, Yucatán, México
| | - Lorena V. Leon-Déniz
- Facultad de Medicina Veterinaria y Zootecnia. Universidad Autónoma de Yucatán. Km. 15.5 carr. a Xmatkuil A.P. No. 116, C.P. 97315, Mérida, Yucatán, México
| | - Rubí Gamboa-León
- Coordinación Académica Región Huasteca Sur, Universidad Autónoma de San Luis Potosí, Km. 5 carr. Tamazunchale-San Martín, C.P. 79960, Tamazunchale, S.L.P
| | - Carely Arjona-Ruiz
- Coordinación Académica Región Huasteca Sur, Universidad Autónoma de San Luis Potosí, Km. 5 carr. Tamazunchale-San Martín, C.P. 79960, Tamazunchale, S.L.P
| | - Juan Tun-Garrido
- Facultad de Medicina Veterinaria y Zootecnia. Universidad Autónoma de Yucatán. Km. 15.5 carr. a Xmatkuil A.P. No. 116, C.P. 97315, Mérida, Yucatán, México
| | - Gumersindo Mirón-López
- Facultad de Química, Universidad Autónoma de Yucatán, C. 41 No. 421 Col. Industrial, C.P. 97150, Mérida, Yucatán, México
| | - Gonzalo J. Mena-Rejón
- Facultad de Química, Universidad Autónoma de Yucatán, C. 41 No. 421 Col. Industrial, C.P. 97150, Mérida, Yucatán, México
| |
Collapse
|
150
|
A systematic review of pentacyclic triterpenes and their derivatives as chemotherapeutic agents against tropical parasitic diseases. Parasitology 2016; 143:1219-31. [PMID: 27240847 DOI: 10.1017/s0031182016000718] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Parasitic infections are among the leading global public health problems with very high economic and mortality burdens. Unfortunately, the available treatment drugs are beset with side effects and continuous parasite drug resistance is being reported. However, new findings reveal more promising compounds especially of plant origin. Among the promising leads are the pentacyclic triterpenes (PTs) made up of the oleanane, ursane, taraxastane, lupane and hopane types. This paper reviews the literature published from 1985 to date on the in vitro and in vivo anti-parasitic potency of this class of phytochemicals. Of the 191 natural and synthetic PT reported, 85 have shown high anti-parasitic activity against various species belonging to the genera of Plasmodium, Leishmania, Trypanosoma, as well as various genera of Nematoda. Moreover, structural modification especially at carbon 3 (C3) and C27 of the parent backbone of PT has led to improved anti-parasitic activity in some cases and loss of activity in others. The potential of this group of compounds as future alternatives in the treatment of parasitic diseases is discussed. It is hoped that the information presented herein will contribute to the full exploration of this promising group of compounds as possible drugs for parasitic diseases.
Collapse
|