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Migdalski M, Czepiel J, Moskal P, Birczyńska-Zych M, Kucharska M, Biesiada G, Stokłosa A, Garlicki A, Wesełucha-Birczyńska A. Raman and resonance Raman spectroscopic study of red blood cells in patients diagnosed with malaria. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 325:125037. [PMID: 39217961 DOI: 10.1016/j.saa.2024.125037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2024] [Revised: 07/31/2024] [Accepted: 08/23/2024] [Indexed: 09/04/2024]
Abstract
Raman spectroscopy was used to study erythrocytes collected from patients diagnosed with malaria at the University Hospital in Kraków and from healthy volunteers. A laser line with a wavelength of 442 nm was used to induce the Raman resonance of haem, while a laser with a wavelength of 785 nm was used for the normal Raman effect. The results were analysed using Principal Component Analysis. For the 442 nm laser line, analysis of the entire spectral range (3200 cm-1 to 300 cm-1) showed satisfactory separation of Raman spectra for healthy cells from infected cells, which was significantly improved in the 1500 cm-1-1200 cm-1 spectral range. For the 785 nm laser line, some separation was observed in each range studied, but the best results were achieved over the full spectral range. Plasmodium-derived nucleic acids and phosphodiester vibrations were observed at excitation lines of 442 nm and 785 nm, respectively.
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Affiliation(s)
- Mateusz Migdalski
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland
| | - Jacek Czepiel
- Department of Infectious and Tropical Diseases, Jagiellonian University, Medical College, Jakubowskiego 2, 30-688 Kraków, Poland; Department of Infectious Diseases, The University Hospital in Kraków, Jakubowskiego 2, 30-688 Kraków, Poland
| | - Paulina Moskal
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland
| | - Malwina Birczyńska-Zych
- Department of Infectious and Tropical Diseases, Jagiellonian University, Medical College, Jakubowskiego 2, 30-688 Kraków, Poland; Department of Infectious Diseases, The University Hospital in Kraków, Jakubowskiego 2, 30-688 Kraków, Poland
| | - Martyna Kucharska
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland
| | - Grażyna Biesiada
- Department of Infectious and Tropical Diseases, Jagiellonian University, Medical College, Jakubowskiego 2, 30-688 Kraków, Poland; Department of Infectious Diseases, The University Hospital in Kraków, Jakubowskiego 2, 30-688 Kraków, Poland
| | - Agnieszka Stokłosa
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland
| | - Aleksander Garlicki
- Department of Infectious and Tropical Diseases, Jagiellonian University, Medical College, Jakubowskiego 2, 30-688 Kraków, Poland; Department of Infectious Diseases, The University Hospital in Kraków, Jakubowskiego 2, 30-688 Kraków, Poland
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Hernández-Arvizu EE, Asada M, Kawazu SI, Vega CA, Rodríguez-Torres A, Morales-García R, Pavón-Rocha AJ, León-Ávila G, Rivas-Santiago B, Mosqueda J. Antiparasitic Evaluation of Aquiluscidin, a Cathelicidin Obtained from Crotalus aquilus, and the Vcn-23 Derivative Peptide against Babesia bovis, B. bigemina and B. ovata. Pathogens 2024; 13:496. [PMID: 38921794 PMCID: PMC11206629 DOI: 10.3390/pathogens13060496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Revised: 06/04/2024] [Accepted: 06/08/2024] [Indexed: 06/27/2024] Open
Abstract
Babesiosis is a growing concern due to the increased prevalence of this infectious disease caused by Babesia protozoan parasites, affecting various animals and humans. With rising worries over medication side effects and emerging drug resistance, there is a notable shift towards researching babesiacidal agents. Antimicrobial peptides, specifically cathelicidins known for their broad-spectrum activity and immunomodulatory functions, have emerged as potential candidates. Aquiluscidin, a cathelicidin from Crotalus aquilus, and its derivative Vcn-23, have been of interest due to their previously observed antibacterial effects and non-hemolytic activity. This work aimed to characterize the effect of these peptides against three Babesia species. Results showed Aquiluscidin's significant antimicrobial effects on Babesia species, reducing the B. bigemina growth rate and exhibiting IC50 values of 14.48 and 20.70 μM against B. ovata and B. bovis, respectively. However, its efficacy was impacted by serum presence in culture, and it showed no inhibition against a B. bovis strain grown in serum-supplemented medium. Conversely, Vcn-23 did not demonstrate babesiacidal activity. In conclusion, Aquiluscidin shows antibabesia activity in vitro and its efficacy is affected by the presence of serum in the culture medium. Nevertheless, this peptide represents a candidate for further investigation of its antiparasitic properties and provides insights into potential alternatives for the treatment of babesiosis.
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Affiliation(s)
- Edwin Esaú Hernández-Arvizu
- Immunology and Vaccine Research Laboratory, Natural Sciences College, Autonomous University of Queretaro, Queretaro 76230, Mexico; (E.E.H.-A.); (R.M.-G.); (A.J.P.-R.)
- PhD Program in Natural Sciences, Natural Sciences College, Autonomous University of Queretaro, Queretaro 76230, Mexico
| | - Masahito Asada
- National Research Center for Protozoan Diseases, Obihiro University of Agriculture and Veterinary Medcine, Inadacho, Nishi 2-13, Obihiro 080-8555, Hokkaido, Japan; (M.A.); (S.-I.K.)
| | - Shin-Ichiro Kawazu
- National Research Center for Protozoan Diseases, Obihiro University of Agriculture and Veterinary Medcine, Inadacho, Nishi 2-13, Obihiro 080-8555, Hokkaido, Japan; (M.A.); (S.-I.K.)
| | - Carlos Agustín Vega
- Natural Sciences College, Autonomous University of Queretaro, Queretaro 76230, Mexico; (C.A.V.); (A.R.-T.)
| | - Angelina Rodríguez-Torres
- Natural Sciences College, Autonomous University of Queretaro, Queretaro 76230, Mexico; (C.A.V.); (A.R.-T.)
| | - Rodrigo Morales-García
- Immunology and Vaccine Research Laboratory, Natural Sciences College, Autonomous University of Queretaro, Queretaro 76230, Mexico; (E.E.H.-A.); (R.M.-G.); (A.J.P.-R.)
| | - Aldo J. Pavón-Rocha
- Immunology and Vaccine Research Laboratory, Natural Sciences College, Autonomous University of Queretaro, Queretaro 76230, Mexico; (E.E.H.-A.); (R.M.-G.); (A.J.P.-R.)
| | - Gloria León-Ávila
- Department of Zoology, National School of Biological Sciences, National Polytechnic Institute, Carpio y Plan de Ayala S/N, C.P. 11340, Casco de Santo Tomas, Mexico City 11340, Mexico;
| | - Bruno Rivas-Santiago
- Medical Research Unit Zacatecas-Instituto Mexicano del Seguro Social, Zacatecas 98053, Mexico;
| | - Juan Mosqueda
- Immunology and Vaccine Research Laboratory, Natural Sciences College, Autonomous University of Queretaro, Queretaro 76230, Mexico; (E.E.H.-A.); (R.M.-G.); (A.J.P.-R.)
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Zhang M, Wang H, Dai GC, Lu PP, Gao YC, Cao MM, Li YJ, Rui YF. Injectable self-assembled GDF5-containing dipeptide hydrogels for enhanced tendon repair. Mater Today Bio 2024; 26:101046. [PMID: 38600922 PMCID: PMC11004210 DOI: 10.1016/j.mtbio.2024.101046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Revised: 03/31/2024] [Accepted: 04/02/2024] [Indexed: 04/12/2024] Open
Abstract
Owing to the tissue characteristics of tendons with few blood vessels and cells, the regeneration and repair of injured tendons can present a considerable challenge, which considerably affects the motor function of limbs and leads to serious physical and mental pain, along with an economic burden on patients. Herein, we designed and fabricated a dipeptide hydrogel (DPH) using polypeptides P11-4 and P11-8. This hydrogel exhibited self-assembly characteristics and could be administered in vitro. To endow the hydrogel with differentiation and regeneration abilities, we added different concentrations of growth differentiation factor 5 (GDF5) to form GDF5@DPH. GDF5@DPH promoted the aggregation and differentiation of tendon stem/progenitor cells and promoted the regeneration and repair of tendon cells and collagen fibers in injured areas. In addition, GDF5@DPH inhibited inflammatory reactions in the injured area. Owing to its injectable properties, DPH can jointly inhibit adhesion and scar hyperplasia between tissues caused by endogenous inflammation and exogenous surgery and can provide a favorable internal environment for the regeneration and repair of the injured area. Overall, the GDF5@DPH system exhibits considerable promise as a novel approach to treating tendon injury.
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Affiliation(s)
- Ming Zhang
- Department of Orthopedics, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, PR China
- School of Medicine, Southeast University, Nanjing, Jiangsu, PR China
- Orthopaedic Trauma Institute (OTI), Southeast University, Nanjing, Jiangsu, PR China
- Trauma Center, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, PR China
| | - Hao Wang
- Department of Orthopedics, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, PR China
- School of Medicine, Southeast University, Nanjing, Jiangsu, PR China
- Orthopaedic Trauma Institute (OTI), Southeast University, Nanjing, Jiangsu, PR China
- Trauma Center, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, PR China
| | - Guan-Chun Dai
- Department of Orthopedics, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, PR China
- School of Medicine, Southeast University, Nanjing, Jiangsu, PR China
- Orthopaedic Trauma Institute (OTI), Southeast University, Nanjing, Jiangsu, PR China
- Trauma Center, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, PR China
| | - Pan-Pan Lu
- Department of Orthopedics, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, PR China
- School of Medicine, Southeast University, Nanjing, Jiangsu, PR China
- Orthopaedic Trauma Institute (OTI), Southeast University, Nanjing, Jiangsu, PR China
- Trauma Center, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, PR China
| | - Yu-Cheng Gao
- Department of Orthopedics, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, PR China
- School of Medicine, Southeast University, Nanjing, Jiangsu, PR China
- Orthopaedic Trauma Institute (OTI), Southeast University, Nanjing, Jiangsu, PR China
- Trauma Center, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, PR China
| | - Mu-Ming Cao
- Department of Orthopedics, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, PR China
- School of Medicine, Southeast University, Nanjing, Jiangsu, PR China
- Orthopaedic Trauma Institute (OTI), Southeast University, Nanjing, Jiangsu, PR China
- Trauma Center, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, PR China
| | - Ying-Juan Li
- Department of Geriatrics, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, PR China
| | - Yun-Feng Rui
- Department of Orthopedics, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, PR China
- School of Medicine, Southeast University, Nanjing, Jiangsu, PR China
- Orthopaedic Trauma Institute (OTI), Southeast University, Nanjing, Jiangsu, PR China
- Trauma Center, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, PR China
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John L, Vijay R. Role of TAM Receptors in Antimalarial Humoral Immune Response. Pathogens 2024; 13:298. [PMID: 38668253 PMCID: PMC11054553 DOI: 10.3390/pathogens13040298] [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: 03/15/2024] [Revised: 03/29/2024] [Accepted: 03/31/2024] [Indexed: 04/29/2024] Open
Abstract
Immune response against malaria and the clearance of Plasmodium parasite relies on germinal-center-derived B cell responses that are temporally and histologically layered. Despite a well-orchestrated germinal center response, anti-Plasmodium immune response seldom offers sterilizing immunity. Recent studies report that certain pathophysiological features of malaria such as extensive hemolysis, hypoxia as well as the extrafollicular accumulation of short-lived plasmablasts may contribute to this suboptimal immune response. In this review, we summarize some of those studies and attempt to connect certain host intrinsic features in response to the malarial disease and the resultant gaps in the immune response.
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Affiliation(s)
- Lijo John
- Department of Veterinary Biochemistry, Kerala Veterinary and Animal Sciences University, Pookode 673576, Kerala, India
- Center for Cancer Cell Biology, Immunology and Infection, Rosalind Franklin University of Medicine and Science, North Chicago, IL 60047, USA
| | - Rahul Vijay
- Center for Cancer Cell Biology, Immunology and Infection, Rosalind Franklin University of Medicine and Science, North Chicago, IL 60047, USA
- Department of Microbiology and Immunology, Rosalind Franklin University of Medicine and Science, North Chicago, IL 60047, USA
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Ruengket P, Roytrakul S, Tongthainan D, Taruyanon K, Sangkharak B, Limudomporn P, Pongsuchart M, Udom C, Fungfuang W. Serum proteomic profile of wild stump-tailed macaques (Macaca arctoides) infected with malaria parasites in Thailand. PLoS One 2023; 18:e0293579. [PMID: 37910477 PMCID: PMC10619813 DOI: 10.1371/journal.pone.0293579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Accepted: 10/16/2023] [Indexed: 11/03/2023] Open
Abstract
The number of patients infected with simian malaria is gradually increasing in many countries of Southeast Asia and South America. The most important risk factor for a zoonotic spillover event of malarial infection is mostly influenced by the interaction between humans, monkeys, and vectors. In this study, we determine the protein expression profile of a wild stump-tailed macaque (Macaca arctoides) from a total of 32 blood samples collected from Prachuap Kiri Khan Province, Thailand. The malarial parasite was analyzed using nested polymerase chain reaction (PCR) assays by dividing the samples into three groups: non-infected, mono-infected, and multiple-infected. The identification and differential proteomic expression profiles were determined using liquid chromatography with tandem mass spectrometry (LC-MS/MS) and bioinformatics tools. A total of 9,532 proteins (total proteins) were identified with the filter-based selection methods analysis, and a subset of 440 proteins were found to be different between each group. Within these proteins, the GhostKOALA functional enrichment analysis indicated that 142 important proteins were associated with either of the organismal system (28.87%), genetic information processing (23.24%), environmental information processing (16.20%), metabolism (13.38%), cellular processes (11.97%), or causing human disease (6.34%). Additionally, using interaction network analysis, nine potential reporter proteins were identified. Here, we report the first study on the protein profiles differentially expressed in the serum of wild stump-tailed macaques between non, mono, and multiple malarial infected living in a natural transmission environment. Our findings demonstrate that differentially expressed proteins implicated in host defense through lipid metabolism, involved with TGF pathway were suppressed, while those with the apoptosis pathway, such as cytokines and proinflammation signals were increased. Including the parasite's response via induced hemolysis and disruption of myeloid cells. A greater understanding of the fundamental processes involved in a malarial infection and host response can be crucial for developing diagnostic tools, medication development, and therapies to improve the health of those affected by the disease.
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Affiliation(s)
- Pakorn Ruengket
- Genetic Engineering and Bioinformatics Program, Graduate School, Kasetsart University, Bangkok, Thailand
| | - Sittiruk Roytrakul
- Functional Ingredients and Food Innovation Research Group, National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency, Pathum Thani, Thailand
| | - Daraka Tongthainan
- Faculty of Veterinary Medicine, Rajamongala University of Technology Tawan-ok, Chonburi, Thailand
| | - Kanokwan Taruyanon
- Department of National Parks, Wildlife Conservation Division Protected Areas Regional Office, Wildlife and Plant Conservation, Ratchaburi, Thailand
| | - Bencharong Sangkharak
- Department of National Parks, Wildlife Conservation Division, Wildlife and Plant Conservation, Bangkok, Thailand
| | - Paviga Limudomporn
- Faculty of Science, Department of Zoology, Kasetsart University, Bangkok, Thailand
| | - Mongkol Pongsuchart
- Faculty of Science, Department of Zoology, Kasetsart University, Bangkok, Thailand
| | - Chanya Udom
- Faculty of Science, Department of Zoology, Kasetsart University, Bangkok, Thailand
| | - Wirasak Fungfuang
- Faculty of Science, Department of Zoology, Kasetsart University, Bangkok, Thailand
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Vallintine T, van Ooij C. Distribution of malaria parasite-derived phosphatidylcholine in the infected erythrocyte. mSphere 2023; 8:e0013123. [PMID: 37606582 PMCID: PMC10597409 DOI: 10.1128/msphere.00131-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Accepted: 07/05/2023] [Indexed: 08/23/2023] Open
Abstract
Malaria parasites modify their host erythrocyte in multiple ways, leading to changes in the deformability, adhesiveness, and permeability of the host erythrocyte. Most of these changes are mediated by proteins exported from the parasite to the host erythrocyte, where these proteins interact with the host cell cytoskeleton or form complexes in the plasma membrane of the infected erythrocyte. In addition, malaria parasites induce the formation of membranous compartments-the parasitophorous vacuole, the tubovesicular network (TVN), the Maurer's clefts and small vesicles-within the infected erythrocyte, a cell that is normally devoid of internal membranes. After infection, changes also occur in the composition and asymmetry of the erythrocyte plasma membrane. Although many aspects of the mechanism of export of parasite proteins have become clear, the mechanism by which these membranous compartments are formed and expanded is almost entirely unknown. To determine whether parasite-derived phospholipids play a part in these processes, we applied a metabolic labeling technique that allows phosphatidylcholine to be labeled with a fluorophore. As the host erythrocyte cannot synthesize phospholipids, within infected erythrocytes, only parasite-derived phosphatidylcholine will be labeled with this technique. The results revealed that phosphatidylcholine produced by the parasite is distributed throughout the infected erythrocyte, including the TVN and the erythrocyte plasma membrane, but not Maurer's clefts. Interestingly, labeled phospholipids were also detected in the erythrocyte plasma membrane very soon after invasion of the parasites, indicating that the parasite may add phospholipids to the host erythrocyte during invasion. IMPORTANCE Here, we describe a previously unappreciated way in which the malaria parasite interacts with the host erythrocyte, namely, by the transfer of parasite phospholipids to the erythrocyte plasma membrane. This likely has important consequences for the survival of the parasite in the host cell and the host organism. We show that parasite-derived phospholipids are transferred from the parasite to the host erythrocyte plasma membrane and that other internal membranes that are produced after the parasite has invaded the cell are produced, at least in part, using parasite-derived phospholipids. The one exception to this is the Maurer's cleft, a membranous organelle that is involved in the transport of parasite proteins to the surface of the erythrocyte. This reveals that the Maurer's cleft is produced in a different manner than the other parasite-induced membranes. Overall, these findings provide a platform for the study of a new aspect of the host-parasite interaction.
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Affiliation(s)
- Tansy Vallintine
- Department of Infection Biology, Faculty of Infectious Disease, London School of Hygiene & Tropical Medicine, London, United Kingdom
| | - Christiaan van Ooij
- Department of Infection Biology, Faculty of Infectious Disease, London School of Hygiene & Tropical Medicine, London, United Kingdom
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Birczyńska-Zych M, Czepiel J, Łabanowska M, Kucharska M, Kurdziel M, Biesiada G, Garlicki A, Wesełucha-Birczyńska A. Course of Plasmodium infection studied using 2D-COS on human erythrocytes. Malar J 2023; 22:188. [PMID: 37340440 DOI: 10.1186/s12936-023-04611-5] [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: 10/08/2022] [Accepted: 05/26/2023] [Indexed: 06/22/2023] Open
Abstract
BACKGROUND The threat of malaria is still present in the world. Recognizing the type of parasite is important in determining a treatment plan. The golden routine involves microscopic diagnostics of Giemsa-stained thin blood smears, however, alternative methods are also constantly being sought, in order to gain an additional insight into the course of the disease. Spectroscopic methods, e.g., Raman spectroscopy, are becoming increasingly popular, due to the non-destructive nature of these techniques. METHODS The study included patients hospitalized for malaria caused by Plasmodium falciparum or Plasmodium vivax, in the Department of Infectious Diseases at the University Hospital in Krakow, Poland, as well as healthy volunteers. The aim of this study was to assess the possibility of using Raman spectroscopy and 2D correlation (2D-COS) spectroscopy in understanding the structural changes in erythrocytes depending on the type of attacking parasite. EPR spectroscopy and two-trace two-dimensional (2T2D) correlation was also used to examine the specificity of paramagnetic centres found in the infected human blood. RESULTS Two-dimensional (2D) correlation spectroscopy facilitates the identification of the hidden relationship, allowing for the discrimination of Raman spectra obtained during the course of disease in human red blood cells, infected by P. falciparum or P. vivax. Synchronous cross-peaks indicate the processes taking place inside the erythrocyte during the export of the parasite protein towards the cell membrane. In contrast, moieties that generate asynchronous 2D cross-peaks are characteristic of the respective ligand-receptor domains. These changes observed during the course of the infection, have different dynamics for P. falciparum and P. vivax, as indicated by the asynchronous correlation cross-peaks. Two-trace two-dimensional (2T2D) spectroscopy, applied to EPR spectra of blood at the beginning of the infection, showed differences between P. falciparum and P. vivax. CONCLUSIONS A unique feature of 2D-COS is the ability to discriminate the collected Raman and EPR spectra. The changes observed during the course of a malaria infection have different dynamics for P. falciparum and P. vivax, indicated by the reverse sequence of events. For each type of parasite, a specific recycling process for iron was observed in the infected blood.
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Affiliation(s)
- Malwina Birczyńska-Zych
- Department of Infectious and Tropical Diseases, Jagiellonian University, Medical College, Jakubowskiego 2, 30-688, Kraków, Poland
- Department of Infectious Diseases, The University Hospital in Kraków, Jakubowskiego 2, 30-688, Kraków, Poland
| | - Jacek Czepiel
- Department of Infectious and Tropical Diseases, Jagiellonian University, Medical College, Jakubowskiego 2, 30-688, Kraków, Poland
- Department of Infectious Diseases, The University Hospital in Kraków, Jakubowskiego 2, 30-688, Kraków, Poland
| | - Maria Łabanowska
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387, Kraków, Poland
| | - Martyna Kucharska
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387, Kraków, Poland
| | - Magdalena Kurdziel
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387, Kraków, Poland
| | - Grażyna Biesiada
- Department of Infectious and Tropical Diseases, Jagiellonian University, Medical College, Jakubowskiego 2, 30-688, Kraków, Poland
- Department of Infectious Diseases, The University Hospital in Kraków, Jakubowskiego 2, 30-688, Kraków, Poland
| | - Aleksander Garlicki
- Department of Infectious and Tropical Diseases, Jagiellonian University, Medical College, Jakubowskiego 2, 30-688, Kraków, Poland
- Department of Infectious Diseases, The University Hospital in Kraków, Jakubowskiego 2, 30-688, Kraków, Poland
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8
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Bopp S, Pasaje CFA, Summers RL, Magistrado-Coxen P, Schindler KA, Corpas-Lopez V, Yeo T, Mok S, Dey S, Smick S, Nasamu AS, Demas AR, Milne R, Wiedemar N, Corey V, Gomez-Lorenzo MDG, Franco V, Early AM, Lukens AK, Milner D, Furtado J, Gamo FJ, Winzeler EA, Volkman SK, Duffey M, Laleu B, Fidock DA, Wyllie S, Niles JC, Wirth DF. Potent acyl-CoA synthetase 10 inhibitors kill Plasmodium falciparum by disrupting triglyceride formation. Nat Commun 2023; 14:1455. [PMID: 36927839 PMCID: PMC10020447 DOI: 10.1038/s41467-023-36921-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Accepted: 02/20/2023] [Indexed: 03/18/2023] Open
Abstract
Identifying how small molecules act to kill malaria parasites can lead to new "chemically validated" targets. By pressuring Plasmodium falciparum asexual blood stage parasites with three novel structurally-unrelated antimalarial compounds (MMV665924, MMV019719 and MMV897615), and performing whole-genome sequence analysis on resistant parasite lines, we identify multiple mutations in the P. falciparum acyl-CoA synthetase (ACS) genes PfACS10 (PF3D7_0525100, M300I, A268D/V, F427L) and PfACS11 (PF3D7_1238800, F387V, D648Y, and E668K). Allelic replacement and thermal proteome profiling validates PfACS10 as a target of these compounds. We demonstrate that this protein is essential for parasite growth by conditional knockdown and observe increased compound susceptibility upon reduced expression. Inhibition of PfACS10 leads to a reduction in triacylglycerols and a buildup of its lipid precursors, providing key insights into its function. Analysis of the PfACS11 gene and its mutations point to a role in mediating resistance via decreased protein stability.
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Affiliation(s)
- Selina Bopp
- Department of Immunology and Infectious Diseases, Harvard T.H. Chan School of Public Health, Boston, MA, USA
- Infectious Disease and Microbiome Program, The Broad Institute, Cambridge, MA, USA
| | | | - Robert L Summers
- Department of Immunology and Infectious Diseases, Harvard T.H. Chan School of Public Health, Boston, MA, USA
- Infectious Disease and Microbiome Program, The Broad Institute, Cambridge, MA, USA
| | - Pamela Magistrado-Coxen
- Department of Immunology and Infectious Diseases, Harvard T.H. Chan School of Public Health, Boston, MA, USA
- Infectious Disease and Microbiome Program, The Broad Institute, Cambridge, MA, USA
| | - Kyra A Schindler
- Department of Microbiology and Immunology, Columbia University Irving Medical Center, New York, NY, USA
| | - Victoriano Corpas-Lopez
- Wellcome Centre for Anti-Infectives Research, School of Life Sciences, University of Dundee, Dundee, DD1 5EH, UK
| | - Tomas Yeo
- Department of Microbiology and Immunology, Columbia University Irving Medical Center, New York, NY, USA
| | - Sachel Mok
- Department of Microbiology and Immunology, Columbia University Irving Medical Center, New York, NY, USA
- Center for Malaria Therapeutics and Antimicrobial Resistance, Division of Infectious Diseases, Department of Medicine, Columbia University Irving Medical Center, New York, NY, USA
| | - Sumanta Dey
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Sebastian Smick
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Armiyaw S Nasamu
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Allison R Demas
- Department of Immunology and Infectious Diseases, Harvard T.H. Chan School of Public Health, Boston, MA, USA
- Infectious Disease and Microbiome Program, The Broad Institute, Cambridge, MA, USA
| | - Rachel Milne
- Wellcome Centre for Anti-Infectives Research, School of Life Sciences, University of Dundee, Dundee, DD1 5EH, UK
| | - Natalie Wiedemar
- Wellcome Centre for Anti-Infectives Research, School of Life Sciences, University of Dundee, Dundee, DD1 5EH, UK
| | - Victoria Corey
- Department of Pediatrics, University of California, San Diego, School of Medicine, La Jolla, CA, USA
| | - Maria De Gracia Gomez-Lorenzo
- Tres Cantos Medicines Research and Development Campus, Diseases of the Developing World, GlaxoSmithKline, Tres Cantos, Madrid, Spain
| | - Virginia Franco
- Tres Cantos Medicines Research and Development Campus, Diseases of the Developing World, GlaxoSmithKline, Tres Cantos, Madrid, Spain
| | - Angela M Early
- Department of Immunology and Infectious Diseases, Harvard T.H. Chan School of Public Health, Boston, MA, USA
- Infectious Disease and Microbiome Program, The Broad Institute, Cambridge, MA, USA
| | - Amanda K Lukens
- Department of Immunology and Infectious Diseases, Harvard T.H. Chan School of Public Health, Boston, MA, USA
- Infectious Disease and Microbiome Program, The Broad Institute, Cambridge, MA, USA
| | - Danny Milner
- Department of Immunology and Infectious Diseases, Harvard T.H. Chan School of Public Health, Boston, MA, USA
- Infectious Disease and Microbiome Program, The Broad Institute, Cambridge, MA, USA
| | - Jeremy Furtado
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Francisco-Javier Gamo
- Tres Cantos Medicines Research and Development Campus, Diseases of the Developing World, GlaxoSmithKline, Tres Cantos, Madrid, Spain
| | - Elizabeth A Winzeler
- Center for Malaria Therapeutics and Antimicrobial Resistance, Division of Infectious Diseases, Department of Medicine, Columbia University Irving Medical Center, New York, NY, USA
| | - Sarah K Volkman
- Department of Immunology and Infectious Diseases, Harvard T.H. Chan School of Public Health, Boston, MA, USA
- Infectious Disease and Microbiome Program, The Broad Institute, Cambridge, MA, USA
- College of Natural, Behavioral, and Health Sciences, Simmons University, Boston, MA, USA
| | | | - Benoît Laleu
- Medicines for Malaria Venture, Geneva, Switzerland
| | - David A Fidock
- Department of Microbiology and Immunology, Columbia University Irving Medical Center, New York, NY, USA
- Center for Malaria Therapeutics and Antimicrobial Resistance, Division of Infectious Diseases, Department of Medicine, Columbia University Irving Medical Center, New York, NY, USA
| | - Susan Wyllie
- Wellcome Centre for Anti-Infectives Research, School of Life Sciences, University of Dundee, Dundee, DD1 5EH, UK
| | - Jacquin C Niles
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Dyann F Wirth
- Department of Immunology and Infectious Diseases, Harvard T.H. Chan School of Public Health, Boston, MA, USA.
- Infectious Disease and Microbiome Program, The Broad Institute, Cambridge, MA, USA.
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9
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Wagner MP, Chitnis CE. Lipid peroxidation and its repair in malaria parasites. Trends Parasitol 2023; 39:200-211. [PMID: 36642689 DOI: 10.1016/j.pt.2022.12.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 12/21/2022] [Accepted: 12/21/2022] [Indexed: 01/15/2023]
Abstract
During its life cycle, the human malaria parasite Plasmodium falciparum is subjected to elevated levels of oxidative stress that cause damage to membrane lipids, a process referred to as lipid peroxidation. Control and repair of lipid peroxidation is critical for survival of P. falciparum. Here, we present an introduction into lipid peroxidation and review the current knowledge about the control and repair of the damage caused by lipid peroxidation in P. falciparum blood stages. We also review the recent identification of host peroxiredoxin 6 (PRDX6), as a key lipid-peroxidation-repair enzyme in P. falciparum blood stages. Such critical host factors provide novel targets for development of drugs against malaria.
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Affiliation(s)
- Matthias Paulus Wagner
- Institut Pasteur, Université Paris Cité, Malaria Parasite Biology and Vaccines Unit, Paris, France
| | - Chetan E Chitnis
- Institut Pasteur, Université Paris Cité, Malaria Parasite Biology and Vaccines Unit, Paris, France.
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10
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Maier AG, van Ooij C. The role of cholesterol in invasion and growth of malaria parasites. Front Cell Infect Microbiol 2022; 12:984049. [PMID: 36189362 PMCID: PMC9522969 DOI: 10.3389/fcimb.2022.984049] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Accepted: 08/15/2022] [Indexed: 11/24/2022] Open
Abstract
Malaria parasites are unicellular eukaryotic pathogens that develop through a complex lifecycle involving two hosts, an anopheline mosquito and a vertebrate host. Throughout this lifecycle, the parasite encounters widely differing conditions and survives in distinct ways, from an intracellular lifestyle in the vertebrate host to exclusively extracellular stages in the mosquito. Although the parasite relies on cholesterol for its growth, the parasite has an ambiguous relationship with cholesterol: cholesterol is required for invasion of host cells by the parasite, including hepatocytes and erythrocytes, and for the development of the parasites in those cells. However, the parasite is unable to produce cholesterol itself and appears to remove cholesterol actively from its own plasma membrane, thereby setting up a cholesterol gradient inside the infected host erythrocyte. Overall a picture emerges in which the parasite relies on host cholesterol and carefully controls its transport. Here, we describe the role of cholesterol at the different lifecycle stages of the parasites.
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Affiliation(s)
- Alexander G. Maier
- Research School of Biology, The Australian National University, Canberra ACT, Australia
- *Correspondence: Alexander G. Maier, ; Christiaan van Ooij,
| | - Christiaan van Ooij
- Department of Infection Biology, London School of Hygiene & Tropical Medicine, London, United Kingdom
- *Correspondence: Alexander G. Maier, ; Christiaan van Ooij,
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11
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Wang F, Song J, Yan Y, Zhou Q, Li X, Wang P, Yang Z, Zhang Q, Zhang H. Integrated Network Pharmacology Analysis and Serum Metabolomics to Reveal the Anti-malaria Mechanism of Artesunate. ACS OMEGA 2022; 7:31482-31494. [PMID: 36092633 PMCID: PMC9453802 DOI: 10.1021/acsomega.2c04157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/02/2022] [Accepted: 08/15/2022] [Indexed: 06/15/2023]
Abstract
Artesunate is a widely used drug in clinical treatment of malaria. The aim of this study was to investigate the therapeutic mechanism of artesunate on malaria using an integrated strategy of network pharmacology and serum metabolomics. The mice models of malaria were established using 2 × 107 red blood cells infected with Plasmodium berghei ANKA injection. Giemsa and hematoxylin-eosin (HE) staining were used to evaluate the efficacy of artesunate on malaria. Next, network pharmacology analysis was applied to identify target genes. Then, a metabolomics strategy has been developed to find the possible significant serum metabolites and metabolic pathways induced by artesunate. Additionally, two parts of the results were integrated to confirm each other. Giemsa and HE staining results showed that artesunate significantly inhibited the proliferation of Plasmodium and reduced liver and spleen inflammation. Based on metabolomics, 18 differential endogenous metabolites were identified as potential biomarkers related to the artesunate for treating malaria. These metabolites were mainly involved in the relevant pathways of biosynthesis of unsaturated fatty acids; aminoacyl-tRNA biosynthesis; valine, leucine, and isoleucine biosynthesis; and phenylalanine, tyrosine, and tryptophan biosynthesis. The results of the network pharmacology analysis showed 125 potential target genes related to the treatment of malaria with artesunate. The functional enrichment was mainly associated with lipid and atherosclerosis; pathways of prostate cancer and proteoglycans in cancer; and PI3K-Akt, apoptosis, NF-κB, Th17 cell, and AGE-RAGE signaling pathways. These findings were partly consistent with the findings of the metabolism. Our results further suggested that artesunate could correct the inflammatory response caused by malaria through Th17 cell and NF-κB pathways. Meanwhile, our work revealed that cholesterol needed by Plasmodium berghei came directly from serum. Cholesterol and palmitic acid may be essential in the growth and reproduction of Plasmodium berghei. In summary, artesunate may have an effect on anti-malarial properties through multiple targets.
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Affiliation(s)
- Feiran Wang
- Shandong
University of Traditional Chinese Medicine, Jinan 250355, P. R. China
- Shandong
Academy of Chinese Medicine, Jinan 250014, P. R. China
| | - Jian Song
- Shandong
University of Traditional Chinese Medicine, Jinan 250355, P. R. China
| | - Yingying Yan
- Shandong
University of Traditional Chinese Medicine, Jinan 250355, P. R. China
| | - Qian Zhou
- Shandong
Academy of Chinese Medicine, Jinan 250014, P. R. China
| | - Xiaojing Li
- Shandong
Academy of Chinese Medicine, Jinan 250014, P. R. China
| | - Ping Wang
- Shandong
Academy of Chinese Medicine, Jinan 250014, P. R. China
| | - Zongtong Yang
- Shandong
Academy of Chinese Medicine, Jinan 250014, P. R. China
| | - Qiuhong Zhang
- Jinan
Center for Food and Drug Control, Jinan 250102, P. R. China
| | - Huimin Zhang
- Shandong
Academy of Chinese Medicine, Jinan 250014, P. R. China
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12
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Leussa ANN, Rautenbach M. Antiplasmodial Cyclodecapeptides from Tyrothricin Share a Target with Chloroquine. Antibiotics (Basel) 2022; 11:antibiotics11060801. [PMID: 35740207 PMCID: PMC9219824 DOI: 10.3390/antibiotics11060801] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Revised: 06/03/2022] [Accepted: 06/09/2022] [Indexed: 12/10/2022] Open
Abstract
Previous research found that the six major cyclodecapeptides from the tyrothricin complex, produced by Brevibacillus parabrevis, showed potent activity against chloroquine sensitive (CQS) Plasmodium falciparum. The identity of the aromatic residues in the aromatic dipeptide unit in cyclo-(D-Phe1-Pro2-(Phe3/Trp3)-D-Phe4/D-Trp4)-Asn5-Gln6-(Tyr7/Phe7/Trp7)-Val8-(Orn9/Lys9)-Leu10 was proposed to have an important role in activity. CQS and resistant (CQR) P. falciparum strains were challenged with three representative cyclodecapeptides. Our results confirmed that cyclodecapeptides from tyrothricin had significantly higher antiplasmodial activity than the analogous gramicidin S, rivaling that of CQ. However, the previously hypothesized size and hydrophobicity dependent activity for these peptides did not hold true for P. falciparum strains, other than for the CQS 3D7 strain. The Tyr7 in tyrocidine A (TrcA) with Phe3-D-Phe4 seem to be related with loss in activity correlating with CQ antagonism and resistance, indicating a shared target and/or resistance mechanism in which the phenolic groups play a role. Phe7 in phenycidine A, the second peptide containing Phe3-D-Phe4, also showed CQ antagonism. Conversely, Trp7 in tryptocidine C (TpcC) with Trp3-D-Trp4 showed improved peptide selectivity and activity towards the more resistant strains, without overt antagonism towards CQ. However, TpcC lead to similar parasite stage inhibition and parasite morphology changes than previously observed for TrcA. The disorganization of chromatin packing and neutral lipid structures, combined with amorphous hemozoin crystals, could account for halted growth in late trophozoite/early schizont stage and the nanomolar non-lytic activity of these peptides. These targets related to CQ antagonism, changes in neural lipid distribution, leading to hemozoin malformation, indicate that the tyrothricin cyclodecapeptides and CQ share a target in the malaria parasite. The differing activities of these cyclic peptides towards CQS and CQR P. falciparum strains could be due to variable target interaction in multiple modes of activity. This indicated that the cyclodecapeptide activity and parasite resistance response depended on the aromatic residues in positions 3, 4 and 7. This new insight on these natural cyclic decapeptides could also benefit the design of unique small peptidomimetics in which activity and resistance can be modulated.
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13
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Ommi NB, Abdullah M, Guruprasad L, Babu PP. Docosahexaenoic acid is potent against the growth of mature stages of Plasmodium falciparum; inhibition of hematin polymerization a possible target. Parasitol Int 2022; 89:102581. [PMID: 35395394 DOI: 10.1016/j.parint.2022.102581] [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: 09/07/2021] [Revised: 01/21/2022] [Accepted: 03/31/2022] [Indexed: 10/18/2022]
Abstract
The present study investigates the potential effect of externally added unsaturated fatty acids on P. falciparum growth. Our results indicate that polyunsaturated fatty acids (PUFAs) inhibit the growth of Plasmodium in proportional to their degree of unsaturation. At higher concentration the PUFA Docosahexaenoic acid (DHA) induces pyknotic nuclei in infected erythrocytes. When Plasmodium stages were treated transiently with DHA, the ring stage culture recovered from the drug effect and parasitemia was increased post DHA removal with delayed growth of 12 h, compared to untreated control. Schizont stage treated culture displayed a 36 h delay in growth to infect fresh erythrocytes signifying its recovery is less than the ring stage. However the trophozoite stage failed to recover and showed a decrease in parasitemia, similar to that of continuous treated culture. PUFAs inhibited β- hematin polymerization by binding to free heme derived from hemoglobin degradation. Digestive vacuole neutral lipid bodies, which are pivotal for β- hematin polymerization, decreased and subsequently abrogated with increasing concentration of DHA in trophozoite stage treated culture. Our study concludes that DHA interacts with heme monomers and inhibits the β- hematin polymerization and growth of mature stages i.e., trophozoite and schizont stages of plasmodium.
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Affiliation(s)
- Naidu Babu Ommi
- Department of Biotechnology and Bioinformatics, School of Life Sciences, University of Hyderabad, Gachibowli, Hyderabad 500 046, Telangana, India
| | - Maaged Abdullah
- School of Chemistry, University of Hyderabad, Gachibowli, Hyderabad 500 046, Telangana, India
| | - Lalitha Guruprasad
- School of Chemistry, University of Hyderabad, Gachibowli, Hyderabad 500 046, Telangana, India
| | - Phanithi Prakash Babu
- Department of Biotechnology and Bioinformatics, School of Life Sciences, University of Hyderabad, Gachibowli, Hyderabad 500 046, Telangana, India.
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14
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Coones RT, Green RJ, Frazier RA. Investigating lipid headgroup composition within epithelial membranes: a systematic review. SOFT MATTER 2021; 17:6773-6786. [PMID: 34212942 DOI: 10.1039/d1sm00703c] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Membrane lipid composition is often quoted within the literature, but with very little insight into how or why these compositions vary when compared to other biological membranes. One prominent area that lacks understanding in terms of rationale for lipid variability is the human gastro-intestinal tract (GIT). We have carried out a comprehensive systematic literature search to ascertain the key lipid components of epithelial membranes, with a particular focus on addressing the human GIT and to use compositional data to understand structural aspects of biological membranes. Both bacterial outer membranes and the human erythrocyte membrane were used as a comparison for the mammalian [epithelial] membranes and to understand variations in lipid presence. We show that phosphatidylcholine (PC) lipid types tend to dominate (33%) with phosphatidylethanolamines (PE) and cholesterol having very similar abundances (25 and 23% respectively). This systematic review presents a detailed insight into lipid headgroup composition and roles in various membrane types, with a summary of the distinction between the major lipid bilayer forming lipids and how peripheral lipids regulate charge and fluidity. The variety of lipids present in biological membranes is discussed and rationalised in terms function as well as cellular position.
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Affiliation(s)
- R T Coones
- Department of Pharmacy, School of Chemistry, Food, and Pharmacy, University of Reading, UK.
| | - R J Green
- Department of Pharmacy, School of Chemistry, Food, and Pharmacy, University of Reading, UK.
| | - R A Frazier
- Department of Food and Nutritional Sciences, School of Chemistry, Food and Pharmacy, University of Reading, UK.
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15
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Álvarez Martínez JA, Figueroa Millán JV, Ueti MW, Rojas-Martínez C. Establishment of Babesia bovis In Vitro Culture Using Medium Free of Animal Products. Pathogens 2021; 10:pathogens10060770. [PMID: 34205286 PMCID: PMC8235554 DOI: 10.3390/pathogens10060770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 06/08/2021] [Accepted: 06/16/2021] [Indexed: 11/16/2022] Open
Abstract
Babesia bovis, an etiological agent of bovine babesiosis, causes a significant burden to the cattle industry worldwide. The most efficient method to mitigate bovine babesiosis is a live vaccine produced by serial passage in splenectomized cattle. However, there are several concerns regarding live vaccine production, including variation between batches and the use of many animals. In this study, we report a B. bovis-SF strain continuously cultured in a medium free of components of animal origin enriched with a chemically defined lipid mixture (CD lipid mixture) and the use of a perfusion bioreactor to harvest a large amount of B. bovis. Six culture media were compared, including VP-SFM, CD-CHO, CD-Hydrolyzed, CD-CHO, SFM, and ADMEM/F12. We found that the VP-SFM medium performed the best for B. bovis growth, with a maximum percentage of parasitized erythrocytes (PPE) of 8.6%. The effect of six dilutions of a commercial mixture of CD lipids added to VP-SFM showed that the CD lipid mixture at a dilution of 1:100 had the best B. bovis growth curve, with a maximum PPE of 13.9%. Propagation of the in vitro B. bovis culture was scaled up in a perfusion bioreactor using VP-SFM with a CD lipid mixture, and the PPE reached over 32%. The continuous in vitro B. bovis culture in a medium free of animal origin components could potentially reduce and replace the use of animals to produce a reagent for diagnostics and live vaccines to control bovine babesiosis.
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Affiliation(s)
- Jesús A. Álvarez Martínez
- Babesia Unit-CENID-Salud Animal e Inocuidad, INIFAP, Carr. Fed. Cuernavaca-Cuautla No. 8534, Col. Progreso, Jiutepec, Morelos C.P. 62550, Mexico; (J.A.Á.M.); (J.V.F.M.)
| | - Julio V. Figueroa Millán
- Babesia Unit-CENID-Salud Animal e Inocuidad, INIFAP, Carr. Fed. Cuernavaca-Cuautla No. 8534, Col. Progreso, Jiutepec, Morelos C.P. 62550, Mexico; (J.A.Á.M.); (J.V.F.M.)
| | - Massaro W. Ueti
- Agricultural Research Service-Animal Disease Research Unit, The US Department of Agriculture, Pullman, WA 99164, USA
- Correspondence: (M.W.U.); (C.R.-M.)
| | - Carmen Rojas-Martínez
- Babesia Unit-CENID-Salud Animal e Inocuidad, INIFAP, Carr. Fed. Cuernavaca-Cuautla No. 8534, Col. Progreso, Jiutepec, Morelos C.P. 62550, Mexico; (J.A.Á.M.); (J.V.F.M.)
- Correspondence: (M.W.U.); (C.R.-M.)
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16
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Peros CS, Kriz R, Proudfoot GA. Account and Utilization of Blood Lipid Profiles: Lipid Levels Predicted Hemosporidian Infection in Migrating Northern Saw-Whet Owls of Eastern North America. J Parasitol 2021; 107:147-154. [PMID: 33662113 DOI: 10.1645/20-114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Noting lipidomic changes following the parasitism of migrating birds, the metabolic needs of which are primarily fueled by lipids, can deepen our understanding of host-parasite interactions. We identified lipids of migrating Northern saw-whet owls (Aegolius acadicus) using collision-induced dissociation mass spectrometry, compared the lipidomic signatures of hemoparasite-infected and noninfected individuals, and performed cross-validation analyses to reveal associations between parasite infection and lipid levels. We found significantly lower levels of lipid classes phosphatidic acid (PA), phosphatidylglycerol (PG), phosphatidylinositol (PI), phosphatidylserine (PS), phosphatidylethanolamine (PE), phosphatidylcholine (PC), and sphingomyelin (SM) in infected Northern saw-whet owls than in the noninfected individuals. Conversely, we found higher levels for certain lysoPS and lysoPE species, and variable lipid level changes for free fatty acid (FFA) species. Reporting lipidomic changes observed between hemosporidian-infected and noninfected Northern saw-whet owls can strengthen our understanding of the mechanisms governing parasite proliferation in this species. Furthermore, our analysis indicated that lipidomic signatures are better predictors of parasite infection than the log-adjusted mass/wing chord body index, a metric commonly used to assess the influence of hemosporidia infection on the health of birds. Establishing a lipidomic profile for Northern saw-whet owls that provides baseline lipid levels during fall migration may assist future studies assessing causes of reductions in breeding brought about from subtle differences in behaviors such as delayed migration.
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Affiliation(s)
- Colin Scott Peros
- Department of Biology, Vassar College, 124 Raymond Avenue, Poughkeepsie, New York 12604
| | - Reno Kriz
- Department of Biology, Vassar College, 124 Raymond Avenue, Poughkeepsie, New York 12604.,Department of Computer Science, University of Pennsylvania, 3330 Walnut Street, Philadelphia, Pennsylvania 19104
| | - Glenn A Proudfoot
- Department of Biology, Vassar College, 124 Raymond Avenue, Poughkeepsie, New York 12604
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17
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Hernández-Castañeda MA, Lavergne M, Casanova P, Nydegger B, Merten C, Subramanian BY, Matthey P, Lannes N, Mantel PY, Walch M. A Profound Membrane Reorganization Defines Susceptibility of Plasmodium falciparum Infected Red Blood Cells to Lysis by Granulysin and Perforin. Front Immunol 2021; 12:643746. [PMID: 34093532 PMCID: PMC8170093 DOI: 10.3389/fimmu.2021.643746] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Accepted: 04/26/2021] [Indexed: 01/11/2023] Open
Abstract
Malaria remains one of the most serious health problems in developing countries. The causative agent of malaria, Plasmodium spp., have a complex life cycle involving multiple developmental stages as well as different morphological, biochemical and metabolic requirements. We recently found that γδ T cells control parasite growth using pore-forming proteins to deliver their cytotoxic proteases, the granzymes, into blood residing parasites. Here, we follow up on the molecular mechanisms of parasite growth inhibition by human pore-forming proteins. We confirm that Plasmodium falciparum infection efficiently depletes the red blood cells of cholesterol, which renders the parasite surrounding membranes susceptible to lysis by prokaryotic membrane disrupting proteins, such as lymphocytic granulysin or the human cathelicidin LL-37. Interestingly, not the cholesterol depletion but rather the simultaneous exposure of phosphatidylserine, a negatively charged phospholipid, triggers resistance of late stage parasitized red blood cells towards the eukaryotic pore forming protein perforin. Overall, by revealing the molecular events we establish here a pathogen-host interaction that involves host cell membrane remodeling that defines the susceptibility towards cytolytic molecules.
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Affiliation(s)
- Maria Andrea Hernández-Castañeda
- Department of Oncology, Microbiology and Immunology, Faculty of Science and Medicine, University of Fribourg, Fribourg, Switzerland
| | - Marilyne Lavergne
- Department of Oncology, Microbiology and Immunology, Faculty of Science and Medicine, University of Fribourg, Fribourg, Switzerland
| | - Pierina Casanova
- Department of Oncology, Microbiology and Immunology, Faculty of Science and Medicine, University of Fribourg, Fribourg, Switzerland
| | - Bryan Nydegger
- Department of Oncology, Microbiology and Immunology, Faculty of Science and Medicine, University of Fribourg, Fribourg, Switzerland
| | - Carla Merten
- Department of Oncology, Microbiology and Immunology, Faculty of Science and Medicine, University of Fribourg, Fribourg, Switzerland
| | - Bibin Yesodha Subramanian
- Department of Oncology, Microbiology and Immunology, Faculty of Science and Medicine, University of Fribourg, Fribourg, Switzerland
| | - Patricia Matthey
- Department of Oncology, Microbiology and Immunology, Faculty of Science and Medicine, University of Fribourg, Fribourg, Switzerland
| | - Nils Lannes
- Department of Oncology, Microbiology and Immunology, Faculty of Science and Medicine, University of Fribourg, Fribourg, Switzerland
| | - Pierre-Yves Mantel
- Department of Oncology, Microbiology and Immunology, Faculty of Science and Medicine, University of Fribourg, Fribourg, Switzerland
| | - Michael Walch
- Department of Oncology, Microbiology and Immunology, Faculty of Science and Medicine, University of Fribourg, Fribourg, Switzerland
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18
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Martins CA, Santos MCBD, Gonçalves-de-Albuquerque CF, Castro-Faria-Neto HC, Castro-Faria MV, Burth P, Younes-Ibrahim M. The relationship of oleic acid/albumin molar ratio and clinical outcomes in leptospirosis. Heliyon 2021; 7:e06420. [PMID: 33732938 PMCID: PMC7944043 DOI: 10.1016/j.heliyon.2021.e06420] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 01/12/2021] [Accepted: 03/01/2021] [Indexed: 11/16/2022] Open
Abstract
Human leptospirosis is an acute infectious zoonosis presenting specific lipid disorders. Previous in vitro studies showed both leptospira glycolipoprotein endotoxin, and high oleic acid levels were associated with Na/K-ATPase inhibition that is amplified by the reduction of circulating albumin levels. In this study, we aimed to investigate the relationship of oleic acid/albumin (OA/A) molar ratio and clinical outcomes in Leptospirosis. Through a prospective observational cohort study employing high-performance liquid chromatography (HPLC) we sequentially determined serum concentrations of nonesterified fatty acids (NEFA) and albumin in twenty-eight patients with severe leptospirosis since their hospital admission. Twenty patients recovered, and eight died. Data was distributed in two groups according to clinical outcomes. Oleic acid/albumin molar ratios (OA/A), initial samples, were higher than those in healthy donors. The ratio OA/A, however, persisted high in dying patients, whereas patients who survived had a reduction matching to healthy donors. Biochemical alterations suggest that cure is correlated to the reestablishment of the OA/A molar ratio, while fatal outcomes related to persisting OA/A imbalances. Analysis by receiver operating characteristic (ROC) showed the area under the curve of 0.864 and the cutoff value of 0.715 being associated with a high odds ratio. Lipid analysis from patients with leptospirosis had an acute high serum OA/A molar ratio, and sustained imbalance has a high odds ratio and strong correlation with mortality.
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Affiliation(s)
- Caroline Azevedo Martins
- Laboratório Integrado de Nefrologia, Department of Internal Medicine, Medical Sciences School, State University of Rio de Janeiro, Brazil
| | - Maria Conceição B dos Santos
- Laboratório Integrado de Nefrologia, Department of Internal Medicine, Medical Sciences School, State University of Rio de Janeiro, Brazil
| | - Cassiano Felippe Gonçalves-de-Albuquerque
- Laboratório de Imunofarmacologia, Oswaldo Cruz Institute, Fiocruz, Rio de Janeiro, Brazil
- Laboratório de Imunofarmacologia, Departamento de Bioquímica, Universidade Federal do Estado do Rio de Janeiro, Rio de Janeiro, Brazil
| | | | - Mauro Velho Castro-Faria
- Laboratório Integrado de Nefrologia, Department of Internal Medicine, Medical Sciences School, State University of Rio de Janeiro, Brazil
| | - Patricia Burth
- Laboratório de Enzimologia e Sinalização Celular, Department of Cellular and Molecular Biology, Federal Fluminense University, Niteroi, Brazil
| | - Mauricio Younes-Ibrahim
- Laboratório Integrado de Nefrologia, Department of Internal Medicine, Medical Sciences School, State University of Rio de Janeiro, Brazil
- Departamento de Medicina, Pontifícia Universidade Católica, Rio de Janeiro, Brazil
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19
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Birczyńska-Zych M, Czepiel J, Łabanowska M, Kurdziel M, Biesiada G, Kozicki M, Garlicki A, Wesełucha-Birczyńska A. The aging of P. falciparum infected RBCs by 2D-correlation Raman and EPR spectroscopy. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2020.129036] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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20
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Aguiar L, Pinheiro M, Neves AR, Vale N, Defaus S, Andreu D, Reis S, Gomes P. Insights into the Membranolytic Activity of Antimalarial Drug-Cell Penetrating Peptide Conjugates. MEMBRANES 2020; 11:4. [PMID: 33375073 PMCID: PMC7822033 DOI: 10.3390/membranes11010004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Revised: 12/15/2020] [Accepted: 12/17/2020] [Indexed: 11/27/2022]
Abstract
Conjugation of TP10, a cell-penetrating peptide with intrinsic antimalarial activity, to the well-known antimalarial drugs chloroquine and primaquine has been previously shown to enhance the peptide's action against, respectively, blood- and liver-stage malaria parasites. Yet, this was achieved at the cost of a significant increase in haemolytic activity, as fluorescence microscopy and flow cytometry studies showed the conjugates to be more haemolytic for non-infected than for Plasmodium-infected red blood cells. To gain further insight into how these conjugates distinctively bind, and likely disrupt, membranes of both Plasmodium-infected and non-infected erythrocytes, we used dynamic light scattering and surface plasmon resonance to study the interactions of two representative conjugates and their parent compounds with lipid model membranes. Results obtained are herein reported and confirm that a strong membrane-disruptive character underlies the haemolytic properties of these conjugates, thus hampering their ability to exert selective antimalarial action.
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Affiliation(s)
- Luísa Aguiar
- LAQV-REQUIMTE, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre 687, P-4169-007 Porto, Portugal;
| | - Marina Pinheiro
- LAQV-REQUIMTE, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira 228, P-4050-313 Porto, Portugal; (M.P.); (S.R.)
| | - Ana Rute Neves
- Centro de Química da Madeira, Universidade da Madeira, Campus da Penteada, Ilha da Madeira, P-9020-105 Funchal, Portugal;
| | - Nuno Vale
- OncoPharma Research Group, Center for Health Technology and Services Research (CINTESIS), Rua Dr. Plácido da Costa, P-4200-450 Porto, Portugal;
- Faculdade de Medicina, Universidade do Porto, Alameda Prof. Hernâni Monteiro, P-4200-319 Porto, Portugal
| | - Sira Defaus
- Proteomics and Protein Chemistry Group, Department of Experimental and Health Sciences, Pompeu Fabra University, Dr. Aiguader 88, E-08003 Barcelona, Spain; (S.D.); (D.A.)
| | - David Andreu
- Proteomics and Protein Chemistry Group, Department of Experimental and Health Sciences, Pompeu Fabra University, Dr. Aiguader 88, E-08003 Barcelona, Spain; (S.D.); (D.A.)
| | - Salette Reis
- LAQV-REQUIMTE, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira 228, P-4050-313 Porto, Portugal; (M.P.); (S.R.)
| | - Paula Gomes
- LAQV-REQUIMTE, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre 687, P-4169-007 Porto, Portugal;
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Chaianantakul N, Sungkapong T, Supatip J, Kingsang P, Kamlaithong S, Suwanakitti N. Antimalarial effect of cell penetrating peptides derived from the junctional region of Plasmodium falciparum dihydrofolate reductase-thymidylate synthase. Peptides 2020; 131:170372. [PMID: 32673701 DOI: 10.1016/j.peptides.2020.170372] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 07/07/2020] [Accepted: 07/10/2020] [Indexed: 11/22/2022]
Abstract
Dihydrofolate reductase-thymidylate synthase of Plasmodium falciparum (PfDHFR-TS) is an important target of antifolate antimalarial drugs. However, drug resistant parasites are widespread in malaria endemic regions. The unique bifunctional property of PfDHFR-TS could be exploited for the design of allosteric inhibitors that interfere with the active dimer conformation. In this study, peptides were derived from the junctional region (JR) of PfDHFR-TS amino acid sequence in the αj1 helix (JR-helix) and the DHFR domain that is necessary for interaction with αj1 helix (JR21). Five peptides were synthesized and tested for inhibition of PfDHFR-TS enzyme by Bacterial inhibition assay (BIA) based on the growth of an E. coli DHFR and TS knockout complemented with a recombinant plasmid expressing PfDHFR-TS enzyme. Significant inhibition was observed for JR21 and JR21 conjugated to cell-penetrating octa-arginine peptide (rR8-JR21) with 50 % inhibitory concentration (IC50) of 3.87 and 1.53 μM, respectively. The JR-helix and rR8-JR-helix peptides were inactive. JR21 and rR8-JR21 peptides showed similar growth inhibitory effects on P. falciparum NF54 parasites cultured in vitro. Treatment with rR8-JR21 delayed parasite development, in which an accumulation of ring stage parasites was observed after 12 h of culture. Minimal red blood cell (RBC) hemolysis was observed at the highest dose of peptide tested. The most potent peptide rR8-JR21 not only compromised the development of the P. falciparum, but also inhibited the parasite growth and has low hemolytic effect on human RBCs.
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Affiliation(s)
- Natpasit Chaianantakul
- Department of Medical Technology, Faculty of Allied Health Sciences, Naresuan University, Phitsanulok, 65000, Thailand.
| | - Tippawan Sungkapong
- Department of Medical Technology, Faculty of Allied Health Sciences, Naresuan University, Phitsanulok, 65000, Thailand
| | - Jaturayut Supatip
- Department of Medical Technology, Faculty of Allied Health Sciences, Naresuan University, Phitsanulok, 65000, Thailand
| | - Pitchayanin Kingsang
- Department of Medical Technology, Faculty of Allied Health Sciences, Naresuan University, Phitsanulok, 65000, Thailand
| | - Sarayut Kamlaithong
- Department of Medical Technology, Faculty of Allied Health Sciences, Naresuan University, Phitsanulok, 65000, Thailand
| | - Nattida Suwanakitti
- National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), 113 Thailand Science Park, Khlong Nueng, Khlong Luang, Pathum Thani, 12120, Thailand
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22
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El Chamy Maluf S, Icimoto MY, Melo PMS, Budu A, Coimbra R, Gazarini ML, Carmona AK. Human plasma plasminogen internalization route in Plasmodium falciparum-infected erythrocytes. Malar J 2020; 19:302. [PMID: 32847585 PMCID: PMC7449074 DOI: 10.1186/s12936-020-03377-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Accepted: 08/14/2020] [Indexed: 02/03/2023] Open
Abstract
Background The intra-erythrocytic development of the malaria parasite Plasmodium falciparum depends on the uptake of a number of essential nutrients from the host cell and blood plasma. It is widely recognized that the parasite imports low molecular weight solutes from the plasma and the consumption of these nutrients by P. falciparum has been extensively analysed. However, although it was already shown that the parasite also imports functional proteins from the vertebrate host, the internalization route through the different infected erythrocyte membranes has not yet been elucidated. In order to further understand the uptake mechanism, the study examined the trafficking of human plasminogen from the extracellular medium into P. falciparum-infected red blood cells. Methods Plasmodium falciparum clone 3D7 was cultured in standard HEPES-buffered RPMI 1640 medium supplemented with 0.5% AlbuMAX. Exogenous human plasminogen was added to the P. falciparum culture and the uptake of this protein by the parasites was analysed by electron microscopy and Western blotting. Immunoprecipitation and mass spectrometry were performed to investigate possible protein interactions that may assist plasminogen import into infected erythrocytes. The effect of pharmacological inhibitors of different cellular physiological processes in plasminogen uptake was also tested. Results It was observed that plasminogen was selectively internalized by P. falciparum-infected erythrocytes, with localization in plasma membrane erythrocyte and parasite’s cytosol. The protein was not detected in parasitic food vacuole and haemoglobin-containing vesicles. Furthermore, in erythrocyte cytoplasm, plasminogen was associated with the parasite-derived membranous structures tubovesicular network (TVN) and Maurer’s clefts. Several proteins were identified in immunoprecipitation assay and may be involved in the delivery of plasminogen across the P. falciparum multiple compartments. Conclusion The findings here reported reveal new features regarding the acquisition of plasma proteins of the host by P. falciparum-infected erythrocytes, a mechanism that involves the exomembrane system, which is distinct from the haemoglobin uptake, clarifying a route that may be potentially targeted for inhibition studies.
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Affiliation(s)
- Sarah El Chamy Maluf
- Departamento de Biofísica, Universidade Federal de São Paulo, Rua Pedro de Toledo 669, 7°andar, Vila Clementino, São Paulo, 04039032, Brazil
| | - Marcelo Yudi Icimoto
- Departamento de Biofísica, Universidade Federal de São Paulo, Rua Pedro de Toledo 669, 7°andar, Vila Clementino, São Paulo, 04039032, Brazil
| | - Pollyana Maria Saud Melo
- Departamento de Biofísica, Universidade Federal de São Paulo, Rua Pedro de Toledo 669, 7°andar, Vila Clementino, São Paulo, 04039032, Brazil
| | - Alexandre Budu
- Departamento de Biofísica, Universidade Federal de São Paulo, Rua Pedro de Toledo 669, 7°andar, Vila Clementino, São Paulo, 04039032, Brazil
| | - Rita Coimbra
- Centro de Microscopia Eletrônica (CEME), Universidade Federal de São Paulo, Rua Botucatu 862, Vila Clementino, São Paulo, Brazil
| | - Marcos Leoni Gazarini
- Departamento de Biociências, Universidade Federal de São Paulo, Rua Silva Jardim 136, Lab. 329, 3°andar, Vila Mathias, Santos, São Paulo, 11015020, Brazil.
| | - Adriana Karaoglanovic Carmona
- Departamento de Biofísica, Universidade Federal de São Paulo, Rua Pedro de Toledo 669, 7°andar, Vila Clementino, São Paulo, 04039032, Brazil.
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Munyangi J, Lutgen P. Artemisia plants, arachidonic and other polyunsaturated fatty acids. MALARIAWORLD JOURNAL 2020; 11:3. [PMID: 34532222 PMCID: PMC8415067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Arachidonic acid (AA or ARA) is an extremely important fatty acid involved in cell regulation. It is a polyunsaturated fatty acid (20:4n6) covalently bound in esterified form in membrane phospholipids of most body cells. Following irritation or injury, arachidonic acid is released and oxygenated by enzyme systems leading to the formation of an important group of inflammatory mediators, to the prostaglandins (PGE₂) by the cyclooxygenase enzyme. This paper describes the positive health effects of arachidonic acid on malaria and other tropical diseases.
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Affiliation(s)
- Jérôme Munyangi
- Faculté de Médecine,Université de Kolwezi, Democratic Republic of the Congo
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24
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Alsultan M, Morriss J, Contaifer D, Kumar NG, Wijesinghe DS. Host Lipid Response in Tropical Diseases. CURRENT TREATMENT OPTIONS IN INFECTIOUS DISEASES 2020. [DOI: 10.1007/s40506-020-00222-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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25
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Innovative Alternatives for Continuous In Vitro Culture of Babesia bigemina in Medium Free of Components of Animal Origin. Pathogens 2020; 9:pathogens9050343. [PMID: 32370024 PMCID: PMC7281159 DOI: 10.3390/pathogens9050343] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2020] [Revised: 04/29/2020] [Accepted: 04/29/2020] [Indexed: 01/03/2023] Open
Abstract
In this study, we report Babesia bigemina proliferation in culture medium free of components of animal origin supplemented with a lipid mixture. Babesia bigemina continuously proliferated in VP-SFM with a higher percent parasitized erythrocyte as compare to using other animal component-free culture media. Compared with Advanced DMEM/F12 (ADMEM/F12), VP-SFM had a similar percent parasitized erythrocyte (PPE). Supplementation of VP-SF with a lipid acid mixture improved B. bigemina proliferation in vitro culture, with a maximum PPE of 11.3%. Growth of B. bigemina in a perfusion bioreactor using VP-SFM medium supplemented with lipid mixture resulted in a PPE above 28%. In conclusion, we demonstrated that B. bigemina proliferated in an animal component-free medium supplemented with the fatty acid mixture. This innovation to B. bigeminain vitro culture method presented herein is an important source of biological material for live vaccine production and understanding the mechanisms and molecules involved in parasite attachment and invasion of bovine erythrocytes.
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26
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Na J, Khan A, Kim JK, Wadood A, Choe YL, Walker DI, Jones DP, Lim CS, Park YH. Discovery of metabolic alterations in the serum of patients infected with Plasmodium spp. by high-resolution metabolomics. Metabolomics 2019; 16:9. [PMID: 31872321 DOI: 10.1007/s11306-019-1630-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Accepted: 12/18/2019] [Indexed: 01/29/2023]
Abstract
INTRODUCTION Despite the advances in diagnosis and treatment, malaria has still not been eradicated. Metabolic interactions between the host and Plasmodium may present novel targets for malaria control, but such interactions are yet to be deciphered. An exploration of metabolic interactions between humans and two Plasmodium species by high-resolution metabolomics may provide fundamental insights that can aid the development of a new strategy for the control of malaria. OBJECTIVES This study aimed at exploring the metabolic changes in the sera of patients infected with Plasmodium falciparum and Plasmodium vivax. METHODS Uni- and multivariate metabolomic analyses were performed on the sera of four groups of patients, namely normal control (N, n = 100), P. falciparum-infected patients (PF, n = 21), P. vivax-infected patients (PV, n = 74), and non-malarial pyretic patients (Pyr, n = 25). RESULTS Univariate and multivariate analyses of N, PF, and PV groups showed differential metabolic phenotypes and subsequent comparisons in pairs revealed significant features. Pathway enrichment test with significant features showed the affected pathways, namely glycolysis/gluconeogenesis for PF and retinol metabolism for PV. The metabolites belonging to the affected pathways included significantly low 2,3-diphosphoglycerate and glyceraldehyde-3-phosphate in the sera of PF. The sera of PV had significantly low levels of retinol but high levels of retinoic acid. CONCLUSION Our study reveals metabolic alterations induced by Plasmodium spp. in human serum and would serve as a milestone in the development of novel anti-malarial strategies.
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Affiliation(s)
- Jinhyuk Na
- College of Pharmacy, Korea University, 2511 Sejong-ro, Jochiwon-eup, Sejong, 30019, Republic of Korea
| | - Adnan Khan
- College of Pharmacy, Korea University, 2511 Sejong-ro, Jochiwon-eup, Sejong, 30019, Republic of Korea
| | - Jae Kwan Kim
- College of Pharmacy, Korea University, 2511 Sejong-ro, Jochiwon-eup, Sejong, 30019, Republic of Korea
| | - Abdul Wadood
- College of Pharmacy, Korea University, 2511 Sejong-ro, Jochiwon-eup, Sejong, 30019, Republic of Korea
| | - Young Lan Choe
- Department of Laboratory Medicine, Korea University Guro Hospital, 148 Gurodong-ro, Guro-gu, Seoul, 08308, Republic of Korea
| | - Douglas I Walker
- Clinical Biomarkers Laboratory, Department of Medicine, Emory University, Atlanta, GA, 30308, USA
| | - Dean P Jones
- Clinical Biomarkers Laboratory, Department of Medicine, Emory University, Atlanta, GA, 30308, USA
| | - Chae Seung Lim
- Department of Laboratory Medicine, Korea University Guro Hospital, 148 Gurodong-ro, Guro-gu, Seoul, 08308, Republic of Korea.
| | - Youngja Hwang Park
- College of Pharmacy, Korea University, 2511 Sejong-ro, Jochiwon-eup, Sejong, 30019, Republic of Korea.
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Vijayvargiya P, Jeraldo PR, Thoendel MJ, Greenwood-Quaintance KE, Esquer Garrigos Z, Sohail MR, Chia N, Pritt BS, Patel R. Application of metagenomic shotgun sequencing to detect vector-borne pathogens in clinical blood samples. PLoS One 2019; 14:e0222915. [PMID: 31577814 PMCID: PMC6774502 DOI: 10.1371/journal.pone.0222915] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Accepted: 09/10/2019] [Indexed: 01/22/2023] Open
Abstract
Background Vector-borne pathogens are a significant public health concern worldwide. Infections with these pathogens, some of which are emerging, are likely under-recognized due to the lack of widely-available laboratory tests. There is an urgent need for further advancement in diagnostic modalities to detect new and known vector-borne pathogens. We evaluated the utility of metagenomic shotgun sequencing (MGS) as a pathogen agnostic approach for detecting vector-borne pathogens from human blood samples. Methods Residual whole blood samples from patients with known infection with Babesia microti, Borrelia hermsii, Plasmodium falciparum, Mansonella perstans, Anaplasma phagocytophilum or Ehrlichia chaffeensis were studied. Samples underwent DNA extraction, removal of human DNA, whole genome amplification, and paired-end library preparation, followed by sequencing on Illumina HiSeq 2500. Bioinformatic analysis was performed using the Livermore Metagenomics Analysis Toolkit (LMAT), Metagenomic Phylogenetic Analysis (MetaPhlAn2), Genomic Origin Through Taxonomic CHAllenge (GOTTCHA) and Kraken 2. Results Eight samples were included in the study (2 samples each for P. falciparum and A. phagocytophilum). An average of 27.5 million read pairs was generated per sample (range, 18.3–38.8 million) prior to removal of human reads. At least one of the analytic tools was able to detect four of six organisms at the genus level, and the organism present in five of eight specimens at the species level. Mansonella and Ehrlichia species were not detected by any of the tools; however, mitochondrial cytochrome c oxidase subunit I amino acid sequence analysis suggested the presence of M. perstans genetic material. Conclusions MGS is a promising tool with the potential to evolve as a non-hypothesis driven diagnostic test to detect vector-borne pathogens, including protozoa and helminths.
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Affiliation(s)
- Prakhar Vijayvargiya
- Division of Infectious Diseases, Mayo Clinic, Rochester, Minnesota, United States of America
| | - Patricio R. Jeraldo
- Department of Surgery, Mayo Clinic, Rochester, Minnesota, United States of America
- Center for Individualized Medicine, Mayo Clinic, Rochester, Minnesota, United States of America
| | - Matthew J. Thoendel
- Division of Infectious Diseases, Mayo Clinic, Rochester, Minnesota, United States of America
| | | | - Zerelda Esquer Garrigos
- Division of Infectious Diseases, Mayo Clinic, Rochester, Minnesota, United States of America
| | - M. Rizwan Sohail
- Division of Infectious Diseases, Mayo Clinic, Rochester, Minnesota, United States of America
| | - Nicholas Chia
- Department of Surgery, Mayo Clinic, Rochester, Minnesota, United States of America
- Center for Individualized Medicine, Mayo Clinic, Rochester, Minnesota, United States of America
| | - Bobbi S. Pritt
- Division of Clinical Microbiology, Mayo Clinic, Rochester, Minnesota, United States of America
| | - Robin Patel
- Division of Infectious Diseases, Mayo Clinic, Rochester, Minnesota, United States of America
- Division of Clinical Microbiology, Mayo Clinic, Rochester, Minnesota, United States of America
- * E-mail:
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Sabiá Júnior EF, Menezes LFS, de Araújo IFS, Schwartz EF. Natural Occurrence in Venomous Arthropods of Antimicrobial Peptides Active against Protozoan Parasites. Toxins (Basel) 2019; 11:E563. [PMID: 31557900 PMCID: PMC6832604 DOI: 10.3390/toxins11100563] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2019] [Revised: 08/31/2019] [Accepted: 09/10/2019] [Indexed: 02/07/2023] Open
Abstract
Arthropoda is a phylum of invertebrates that has undergone remarkable evolutionary radiation, with a wide range of venomous animals. Arthropod venom is a complex mixture of molecules and a source of new compounds, including antimicrobial peptides (AMPs). Most AMPs affect membrane integrity and produce lethal pores in microorganisms, including protozoan pathogens, whereas others act on internal targets or by modulation of the host immune system. Protozoan parasites cause some serious life-threatening diseases among millions of people worldwide, mostly affecting the poorest in developing tropical regions. Humans can be infected with protozoan parasites belonging to the genera Trypanosoma, Leishmania, Plasmodium, and Toxoplasma, responsible for Chagas disease, human African trypanosomiasis, leishmaniasis, malaria, and toxoplasmosis. There is not yet any cure or vaccine for these illnesses, and the current antiprotozoal chemotherapeutic compounds are inefficient and toxic and have been in clinical use for decades, which increases drug resistance. In this review, we will present an overview of AMPs, the diverse modes of action of AMPs on protozoan targets, and the prospection of novel AMPs isolated from venomous arthropods with the potential to become novel clinical agents to treat protozoan-borne diseases.
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Affiliation(s)
- Elias Ferreira Sabiá Júnior
- Departamento de Ciências Fisiológicas, Instituto de Ciências Biológicas, Universidade de Brasília, Brasília, DF 70910-900, Brazil.
| | - Luis Felipe Santos Menezes
- Departamento de Ciências Fisiológicas, Instituto de Ciências Biológicas, Universidade de Brasília, Brasília, DF 70910-900, Brazil.
| | - Israel Flor Silva de Araújo
- Departamento de Ciências Fisiológicas, Instituto de Ciências Biológicas, Universidade de Brasília, Brasília, DF 70910-900, Brazil.
| | - Elisabeth Ferroni Schwartz
- Departamento de Ciências Fisiológicas, Instituto de Ciências Biológicas, Universidade de Brasília, Brasília, DF 70910-900, Brazil.
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Istvan ES, Das S, Bhatnagar S, Beck JR, Owen E, Llinas M, Ganesan SM, Niles JC, Winzeler E, Vaidya AB, Goldberg DE. Plasmodium Niemann-Pick type C1-related protein is a druggable target required for parasite membrane homeostasis. eLife 2019; 8:40529. [PMID: 30888318 PMCID: PMC6424564 DOI: 10.7554/elife.40529] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Accepted: 02/05/2019] [Indexed: 01/05/2023] Open
Abstract
Plasmodium parasites possess a protein with homology to Niemann-Pick Type C1 proteins (Niemann-Pick Type C1-Related protein, NCR1). We isolated parasites with resistance-conferring mutations in Plasmodium falciparum NCR1 (PfNCR1) during selections with three diverse small-molecule antimalarial compounds and show that the mutations are causative for compound resistance. PfNCR1 protein knockdown results in severely attenuated growth and confers hypersensitivity to the compounds. Compound treatment or protein knockdown leads to increased sensitivity of the parasite plasma membrane (PPM) to the amphipathic glycoside saponin and engenders digestive vacuoles (DVs) that are small and malformed. Immuno-electron microscopy and split-GFP experiments localize PfNCR1 to the PPM. Our experiments show that PfNCR1 activity is critically important for the composition of the PPM and is required for DV biogenesis, suggesting PfNCR1 as a novel antimalarial drug target. Editorial note: This article has been through an editorial process in which the authors decide how to respond to the issues raised during peer review. The Reviewing Editor's assessment is that all the issues have been addressed (see decision letter).
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Affiliation(s)
- Eva S Istvan
- Department of Medicine, Division of Infectious Diseases, Washington University School of Medicine, Saint Louis, United States.,Department of Molecular Microbiology, Washington University School of Medicine, Saint Louis, United States
| | - Sudipta Das
- Department of Microbiology and Immunology, Center for Molecular Parasitology, Drexel University College of Medicine, Philadelphia, United States
| | - Suyash Bhatnagar
- Department of Microbiology and Immunology, Center for Molecular Parasitology, Drexel University College of Medicine, Philadelphia, United States
| | - Josh R Beck
- Department of Medicine, Division of Infectious Diseases, Washington University School of Medicine, Saint Louis, United States.,Department of Molecular Microbiology, Washington University School of Medicine, Saint Louis, United States
| | - Edward Owen
- Department of Biochemistry and Molecular Biology, Pennsylvania State University, University Park, United States.,Huck Center for Malaria Research, Pennsylvania State University, University Park, United States.,Department of Chemistry, Pennsylvania State University, University Park, United States
| | - Manuel Llinas
- Department of Biochemistry and Molecular Biology, Pennsylvania State University, University Park, United States.,Huck Center for Malaria Research, Pennsylvania State University, University Park, United States.,Department of Chemistry, Pennsylvania State University, University Park, United States
| | - Suresh M Ganesan
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, United States
| | - Jacquin C Niles
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, United States
| | - Elizabeth Winzeler
- Department of Pediatrics, University of California San Diego School of Medicine, La Jolla, United States
| | - Akhil B Vaidya
- Department of Microbiology and Immunology, Center for Molecular Parasitology, Drexel University College of Medicine, Philadelphia, United States
| | - Daniel E Goldberg
- Department of Medicine, Division of Infectious Diseases, Washington University School of Medicine, Saint Louis, United States.,Department of Molecular Microbiology, Washington University School of Medicine, Saint Louis, United States
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30
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Honrado C, Ciuffreda L, Spencer D, Ranford-Cartwright L, Morgan H. Dielectric characterization of Plasmodium falciparum-infected red blood cells using microfluidic impedance cytometry. J R Soc Interface 2018; 15:rsif.2018.0416. [PMID: 30333248 PMCID: PMC6228484 DOI: 10.1098/rsif.2018.0416] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Accepted: 09/05/2018] [Indexed: 02/07/2023] Open
Abstract
Although malaria is the world's most life-threatening parasitic disease, there is no clear understanding of how certain biophysical properties of infected cells change during the malaria infection cycle. In this article, we use microfluidic impedance cytometry to measure the dielectric properties of Plasmodium falciparum-infected red blood cells (i-RBCs) at specific time points during the infection cycle. Individual parasites were identified within i-RBCs using green fluorescent protein (GFP) emission. The dielectric properties of cell sub-populations were determined using the multi-shell model. Analysis showed that the membrane capacitance and cytoplasmic conductivity of i-RBCs increased along the infection time course, due to membrane alterations caused by parasite infection. The volume ratio occupied by the parasite was estimated to vary from less than 10% at earlier stages, to approximately 90% at later stages. This knowledge could be used to develop new label-free cell sorting techniques for sample pre-enrichment, improving diagnosis.
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Affiliation(s)
- C Honrado
- Faculty of Physical Sciences and Engineering, Institute for Life Sciences, University of Southampton, Southampton, UK
| | - L Ciuffreda
- Institute of Infection, Immunity and Inflammation, Animal Health and Comparative Medicine, University of Glasgow, Glasgow, UK
| | - D Spencer
- Faculty of Physical Sciences and Engineering, Institute for Life Sciences, University of Southampton, Southampton, UK
| | - L Ranford-Cartwright
- Institute of Biodiversity, Animal Health and Comparative Medicine, University of Glasgow, Glasgow, UK
| | - H Morgan
- Faculty of Physical Sciences and Engineering, Institute for Life Sciences, University of Southampton, Southampton, UK
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31
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Kong P, Lehmann MJ, Helms JB, Brouwers JF, Gupta N. Lipid analysis of Eimeria sporozoites reveals exclusive phospholipids, a phylogenetic mosaic of endogenous synthesis, and a host-independent lifestyle. Cell Discov 2018; 4:24. [PMID: 29844921 PMCID: PMC5964319 DOI: 10.1038/s41421-018-0023-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2017] [Revised: 02/27/2018] [Accepted: 03/01/2018] [Indexed: 12/16/2022] Open
Abstract
Successful inter-host transmission of most apicomplexan parasites requires the formation of infective sporozoites within the oocysts. Unlike all other infective stages that are strictly intracellular and depend on host resources, the sporozoite stage develops outside the host cells, but little is known about its self-governing metabolism. This study deployed Eimeria falciformis, a parasite infecting the mouse as its natural host, to investigate the process of phospholipid biogenesis in sporozoites. Lipidomic analyses demonstrated the occurrence of prototypical phospholipids along with abundant expression of at least two exclusive lipids, phosphatidylthreonine (PtdThr) and inositol phosphorylceramide with a phytosphingosine backbone, in sporozoites. To produce them de novo, the parasite harbors nearly the entire biogenesis network, which is an evolutionary mosaic of eukaryotic-type and prokaryotic-type enzymes. Notably, many have no phylogenetic counterpart or functional equivalent in the mammalian host. Using Toxoplasma gondii as a gene-tractable surrogate to examine Eimeria enzymes, we show a highly compartmentalized network of lipid synthesis spread primarily in the apicoplast, endoplasmic reticulum, mitochondrion, and Golgi complex. Likewise, trans-genera complementation of a Toxoplasma mutant with the PtdThr synthase from Eimeria reveals a convergent role of PtdThr in fostering the lytic cycle of coccidian parasites. Taken together, our work establishes a model of autonomous membrane biogenesis involving significant inter-organelle cooperation and lipid trafficking in sporozoites. Phylogenetic divergence of certain pathways offers attractive drug targets to block the sporulation and subsequent transmission. Not least, our results vindicate the possession of an entire de novo lipid synthesis network in a representative protist adapted to an obligate intracellular parasitic lifestyle.
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Affiliation(s)
- Pengfei Kong
- Department of Molecular Parasitology, Faculty of Life Sciences, Humboldt University, Berlin, 10115 Germany
| | - Maik J. Lehmann
- Department of Molecular Parasitology, Faculty of Life Sciences, Humboldt University, Berlin, 10115 Germany
- Present Address: Department of Life Sciences and Engineering, University of Applied Sciences, Bingen, 55411 Germany
| | - J. Bernd Helms
- Department of Biochemistry and Cell Biology, Institute of Biomembranes, Utrecht University, Utrecht, 3584CM The Netherlands
| | - Jos F. Brouwers
- Department of Biochemistry and Cell Biology, Institute of Biomembranes, Utrecht University, Utrecht, 3584CM The Netherlands
| | - Nishith Gupta
- Department of Molecular Parasitology, Faculty of Life Sciences, Humboldt University, Berlin, 10115 Germany
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Ventura AMRDS, Fernandes AAM, Zanini GM, Pratt-Riccio LR, Sequeira CG, do Monte CRS, Martins-Filho AJ, Machado RLD, Libonati RMF, de Souza JM, Daniel-Ribeiro CT. Clinical and immunological profiles of anaemia in children and adolescents with Plasmodium vivax malaria in the Pará state, Brazilian Amazon. Acta Trop 2018; 181:122-131. [PMID: 29408596 DOI: 10.1016/j.actatropica.2018.01.022] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Revised: 01/29/2018] [Accepted: 01/30/2018] [Indexed: 11/18/2022]
Abstract
Children and adolescents are at great risk for developing iron deficiency anaemia worldwide. In the tropical areas, malaria and intestinal parasites may also play an important role in anaemia pathogenesis. This study aimed at evaluating clinical and immunological aspects of anaemia in children and adolescents with Plasmodium vivax malaria, in the Pará State, Brazil. A longitudinal study was performed in two Reference Centers for malaria diagnosis in the Brazilian Amazon in children and adolescents with malaria (n = 81), as compared to a control group (n = 40). Patients had blood drawn three times [before treatment (D0), after treatment (D7) and at the first cure control (D30)] and hemogram, autoantibody analysis (anticardiolipin, antibodies against normal RBC membrane components) and cytokine studies (TNF and IL-10) were performed. Stool samples were collected for a parasitological examination. Malaria patients had a 2.7-fold greater chance of anaemia than the control group. At D0, 66.1% of the patients had mild anaemia, 30.5% had moderate and 3.5% had severe anaemia. Positivity to intestinal helminths and/or protozoa at stool examinations had no influence on anaemia. Patients had significantly lower levels of plasmatic TNF than control individuals at D0. Low TNF levels were more prevalent among patients with moderate/severe anaemia than in those with mild anaemia and among anaemic patients than in anaemic controls. TNF levels were positively correlated with the haemoglobin rates and negatively correlated with the interval time elapsed between the onset of symptoms and diagnosis. Both plasma TNF levels and haemoglobin rates increased during the follow-up period. The IL-10 levels were lower in patients than in the controls at day 0 and decreased thereafter up to the end of treatment. Only the anti-anticardiolipin autoantibodies were associated with moderate/severe anaemia and, possibly by reacting with the parasite glycosylphosphatidylinositol (a powerful stimulator of TNF production), may have indirectly contributed to decrease the TNF levels, which could be involved in the malarial vivax anaemia of these children and adolescents. More studies addressing this issue are necessary to confirm these findings and to add more information on the multifactorial pathogenesis of the malarial anaemia.
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Affiliation(s)
- Ana Maria Revoredo da Silva Ventura
- Laboratório de Ensaios Clínicos em Malária, Instituto Evandro Chagas, Ministério da Saúde, Secretaria de Vigilância em Saúde (IEC/MS/SVS), Ananindeua, Pará, Brazil; Serviço de Pediatria - Departamento de Saúde Integrada, Universidade do Estado do Pará (UEPA), Belém, Pará, Brazil.
| | | | - Graziela Maria Zanini
- Laboratório de Pesquisa em Malária, Instituto Oswaldo Cruz (IOC), Fiocruz, Rio de Janeiro, Brazil.
| | - Lilian Rose Pratt-Riccio
- Laboratório de Pesquisa em Malária, Instituto Oswaldo Cruz (IOC), Fiocruz, Rio de Janeiro, Brazil.
| | - Carina Guilhon Sequeira
- Serviço de Pediatria - Departamento de Saúde Integrada, Universidade do Estado do Pará (UEPA), Belém, Pará, Brazil.
| | | | - Arnaldo Jorge Martins-Filho
- Serviço de Patologia Clínica, Instituto Evandro Chagas, Ministério da Saúde, Secretaria de Vigilância em Saúde (IEC/MS/SVS), Ananindeua, Pará, Brazil.
| | - Ricardo Luiz Dantas Machado
- Laboratório de Imunogenética, Instituto Evandro Chagas, Ministério da Saúde, Secretaria de Vigilância em Saúde (IEC/MS/SVS), Ananindeua, Pará, Brazil.
| | | | - José Maria de Souza
- Laboratório de Ensaios Clínicos em Malária, Instituto Evandro Chagas, Ministério da Saúde, Secretaria de Vigilância em Saúde (IEC/MS/SVS), Ananindeua, Pará, Brazil.
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33
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Couto J, Tonk M, Ferrolho J, Antunes S, Vilcinskas A, de la Fuente J, Domingos A, Cabezas-Cruz A. Antiplasmodial activity of tick defensins in a mouse model of malaria. Ticks Tick Borne Dis 2018; 9:844-849. [PMID: 29567145 DOI: 10.1016/j.ttbdis.2018.03.011] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Revised: 02/20/2018] [Accepted: 03/10/2018] [Indexed: 01/10/2023]
Abstract
Malaria is a mosquito-borne disease affecting millions of people mainly in Sub-Saharan Africa, Asia and some South American countries. Drug resistance to first-line antimalarial drugs (e.g. chloroquine, sulfadoxine-pyrimethamine and artemisinin) is a major constrain in malaria control. Antimicrobial peptides (AMPs) have shown promising results in controlling Plasmodium spp. parasitemia in in vitro and in vivo models of infection. Defensins are AMPs that act primarily by disrupting the integrity of cell membranes of invasive microbes. We previously showed that defensins from the tick Ixodes ricinus inhibited significantly the growth of P. falciparum in vitro, a property that was conserved during evolution. Here, we tested the activity of three I. ricinus defensins against P. chabaudi in mice. A single dose of defensin (120 μl of 1 mg/ml solution) was administered intravenously to P. chabaudi-infected mice, and the parasitemia was followed for 24 h post-treatment. Defensin treatment inhibited significantly the replication (measured as increases in parasitemia) of P. chabaudi after 1 h and 12 h of treatment. Furthermore, defensin injection was not associated with toxicity. These results agreed with the previous report of antiplasmodial activity of tick defensins against P. falciparum in vitro and justify further studies for the use of tick defensins to control malaria.
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Affiliation(s)
- Joana Couto
- Global Health and Tropical Medicine - Instituto de Higiene e Medicina, Universidade Nova de Lisboa (GHMT-IHMT-UNL), Rua da Junqueira 100, 1349-008 Lisboa, Portugal
| | - Miray Tonk
- Fraunhofer Institute for Molecular Biology and Applied Ecology, Winchester Strasse 2, D-35394 Giessen, Germany
| | - Joana Ferrolho
- Global Health and Tropical Medicine - Instituto de Higiene e Medicina, Universidade Nova de Lisboa (GHMT-IHMT-UNL), Rua da Junqueira 100, 1349-008 Lisboa, Portugal
| | - Sandra Antunes
- Global Health and Tropical Medicine - Instituto de Higiene e Medicina, Universidade Nova de Lisboa (GHMT-IHMT-UNL), Rua da Junqueira 100, 1349-008 Lisboa, Portugal
| | - Andreas Vilcinskas
- Fraunhofer Institute for Molecular Biology and Applied Ecology, Winchester Strasse 2, D-35394 Giessen, Germany; Institute for Insect Biotechnology, Justus Liebig University of Giessen, Heinrich-Buff-Ring 26-32, 35392 Giessen, Germany
| | - José de la Fuente
- SaBio, Instituto de Investigación en Recursos Cinegéticos IREC (CSIC-UCLM-JCCM), 13005 Ciudad Real, Spain; Department of Veterinary Pathobiology, Center for Veterinary Health Sciences, Oklahoma State University, Stillwater, OK 74078 USA
| | - Ana Domingos
- Global Health and Tropical Medicine - Instituto de Higiene e Medicina, Universidade Nova de Lisboa (GHMT-IHMT-UNL), Rua da Junqueira 100, 1349-008 Lisboa, Portugal.
| | - Alejandro Cabezas-Cruz
- UMR BIPAR, INRA, ANSES, Ecole Nationale Vétérinaire d'Alfort, Université Paris-Est, Maisons-Alfort, 94700, France; Faculty of Science, University of South Bohemia, 37005 České Budějovice, Czech Republic; Institute of Parasitology, Biology Center, Czech Academy of Sciences, 37005, České Budějovice, Czech Republic.
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34
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Wilson SK, Knoll LJ. Patatin-like phospholipases in microbial infections with emerging roles in fatty acid metabolism and immune regulation by Apicomplexa. Mol Microbiol 2017; 107:34-46. [PMID: 29090840 DOI: 10.1111/mmi.13871] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2017] [Revised: 10/23/2017] [Accepted: 10/26/2017] [Indexed: 12/22/2022]
Abstract
Emerging lipidomic technologies have enabled researchers to dissect the complex roles of phospholipases in lipid metabolism, cellular signaling and immune regulation. Host phospholipase products are involved in stimulating and resolving the inflammatory response to pathogens. While many pathogen-derived phospholipases also manipulate the immune response, they have recently been shown to be involved in lipid remodeling and scavenging during replication. Animal and plant hosts as well as many pathogens contain a family of patatin-like phospholipases, which have been shown to have phospholipase A2 activity. Proteins containing patatin-like phospholipase domains have been identified in protozoan parasites within the Apicomplexa phylum. These parasites are the causative agents of some of the most widespread human diseases. Malaria, caused by Plasmodium spp., kills nearly half a million people worldwide each year. Toxoplasma and Cryptosporidium infect millions of people each year with lethal consequences in immunocompromised populations. Parasite-derived patatin-like phospholipases are likely effective drug targets and progress in the tools available to the Apicomplexan field will allow for a closer look at the interplay of lipid metabolism and immune regulation during host infection.
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Affiliation(s)
- Sarah K Wilson
- Department of Medical Microbiology and Immunology, University of Wisconsin-Madison, Madison, WI, 53706, USA
| | - Laura J Knoll
- Department of Medical Microbiology and Immunology, University of Wisconsin-Madison, Madison, WI, 53706, USA
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35
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Ferraz R, Pinheiro M, Gomes A, Teixeira C, Prudêncio C, Reis S, Gomes P. Effects of novel triple-stage antimalarial ionic liquids on lipid membrane models. Bioorg Med Chem Lett 2017; 27:4190-4193. [DOI: 10.1016/j.bmcl.2017.07.006] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2017] [Revised: 06/28/2017] [Accepted: 07/01/2017] [Indexed: 11/17/2022]
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36
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Plewes K, Kingston HWF, Ghose A, Maude RJ, Herdman MT, Leopold SJ, Ishioka H, Hasan MMU, Haider MS, Alam S, Piera KA, Charunwatthana P, Silamut K, Yeo TW, Faiz MA, Lee SJ, Mukaka M, Turner GDH, Anstey NM, Jackson Roberts L, White NJ, Day NPJ, Hossain MA, Dondorp AM. Cell-free hemoglobin mediated oxidative stress is associated with acute kidney injury and renal replacement therapy in severe falciparum malaria: an observational study. BMC Infect Dis 2017; 17:313. [PMID: 28449641 PMCID: PMC5408414 DOI: 10.1186/s12879-017-2373-1] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2016] [Accepted: 03/30/2017] [Indexed: 01/01/2023] Open
Abstract
BACKGROUND Intravascular hemolysis is an intrinsic feature of severe malaria pathophysiology but the pathogenic role of cell-free hemoglobin-mediated oxidative stress in severe malaria associated acute kidney injury (AKI) is unknown. METHODS As part of a prospective observational study, enrolment plasma cell-free hemoglobin (CFH), lipid peroxidation markers (F2-isoprostanes (F2-IsoPs) and isofurans (IsoFs)), red cell deformability, and serum creatinine were quantified in Bangladeshi patients with severe falciparum malaria (n = 107), uncomplicated malaria (n = 80) and sepsis (n = 28). The relationships between these indices and kidney function and clinical outcomes were examined. RESULTS AKI was diagnosed at enrolment in 58% (62/107) of consecutive patients with severe malaria, defined by an increase in creatinine ≥1.5 times expected baseline. Severe malaria patients with AKI had significantly higher plasma cell-free hemoglobin (geometric mean CFH: 8.8 μM; 95% CI, 6.2-12.3 μM), F2-isoprostane (56.7 pg/ml; 95% CI, 45.3-71.0 pg/ml) and isofuran (109.2 pg/ml; 95% CI, 85.1-140.1 pg/ml) concentrations on enrolment compared to those without AKI (CFH: 5.1 μM; 95% CI, 4.0-6.6 μM; P = 0.018; F2-IsoPs: 27.8 pg/ml; 95% CI, 23.7-32.7 pg/ml; P < 0.001; IsoFs: 41.7 pg/ml; 95% CI, 30.2-57.6 pg/ml; P < 0.001). Cell-free hemoglobin correlated with markers of hemolysis, parasite burden (P. falciparum histidine rich protein 2 (PfHRP2)), and F2-IsoPs. Plasma F2-IsoPs and IsoFs inversely correlated with pH, positively correlated with creatinine, PfHRP2 and fractional excretion of sodium, and were higher in patients later requiring hemodialysis. Plasma F2-IsoP concentrations also inversely correlated with red cell deformability and were higher in fatal cases. Mixed effects modeling including an interaction term for CFH and time showed that F2-IsoPs, IsoFs, PfHRP2, CFH, and red cell rigidity were independently associated with increasing creatinine over 72 h. Multivariable logistic regression showed that admission F2-IsoPs, IsoFs and red cell deformability were associated with the need for subsequent hemodialysis. CONCLUSIONS Cell-free hemoglobin and lipid peroxidation are associated with acute kidney injury and disease severity in falciparum malaria, suggesting a pathophysiological role in renal tubular injury. Evaluation of adjunctive therapies targeting cell-free hemoglobin-mediated oxidative stress is warranted.
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Affiliation(s)
- Katherine Plewes
- Mahidol Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand.,Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK.,Department of Medicine and Vancouver Coastal Health, University of British Columbia Clinical Investigator program, Vancouver, Canada
| | - Hugh W F Kingston
- Mahidol Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand.,Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK.,Global Health Division, Menzies School of Health Research and Charles Darwin University, Darwin, Northern Territory, Australia
| | - Aniruddha Ghose
- Department of Medicine, Chittagong Medical College and Hospital, Chittagong, Bangladesh
| | - Richard J Maude
- Mahidol Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand.,Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - M Trent Herdman
- Mahidol Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Stije J Leopold
- Mahidol Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand.,Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - Haruhiko Ishioka
- Mahidol Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Md Mahtab Uddin Hasan
- Department of Medicine, Chittagong Medical College and Hospital, Chittagong, Bangladesh
| | - Md Shafiul Haider
- Department of Nephrology, Chittagong Medical College and Hospital, Chittagong, Bangladesh
| | - Shamsul Alam
- Department of Anesthesiology, Chittagong Medical College and Hospital, Chittagong, Bangladesh
| | - Kim A Piera
- Global Health Division, Menzies School of Health Research and Charles Darwin University, Darwin, Northern Territory, Australia
| | - Prakaykaew Charunwatthana
- Mahidol Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Kamolrat Silamut
- Mahidol Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Tsin W Yeo
- Global Health Division, Menzies School of Health Research and Charles Darwin University, Darwin, Northern Territory, Australia.,Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, Singapore
| | | | - Sue J Lee
- Mahidol Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand.,Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - Mavuto Mukaka
- Mahidol Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand.,Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - Gareth D H Turner
- Mahidol Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand.,Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - Nicholas M Anstey
- Global Health Division, Menzies School of Health Research and Charles Darwin University, Darwin, Northern Territory, Australia
| | - L Jackson Roberts
- Department of Pharmacology, Vanderbilt University, Nashville, TN, USA
| | - Nicholas J White
- Mahidol Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand.,Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - Nicholas P J Day
- Mahidol Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand.,Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - Md Amir Hossain
- Department of Medicine, Chittagong Medical College and Hospital, Chittagong, Bangladesh
| | - Arjen M Dondorp
- Mahidol Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand. .,Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK.
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Ghosh C, Chaubey S, Tatu U, Haldar J. Aryl-alkyl-lysines: small molecular membrane-active antiplasmodial agents. MEDCHEMCOMM 2016; 8:434-439. [PMID: 30108761 DOI: 10.1039/c6md00589f] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2016] [Accepted: 12/06/2016] [Indexed: 11/21/2022]
Abstract
Due to emerging resistance there is a steady need for new antimalarial drugs. Here, we report a new class of water soluble, non-toxic compounds, aryl-alkyl-lysines, with promising activity against the ring stage of Plasmodium falciparum. The optimal compound perturbed the plasma membrane potential and the digestive vacuole of parasites. In the murine model of malaria (Plasmodium berghei ANKA) the compound was able to increase the survival of mice by at least 5 days by an intra-peritoneal route. Further, the compounds showed no apparent toxicity to mice at the concentration tested.
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Affiliation(s)
- Chandradhish Ghosh
- Chemical biology and Medicinal Chemistry Laboratory , New Chemistry Unit , Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR) , Jakkur , Bengaluru 560064 , Karnataka , India .
| | - Shweta Chaubey
- Department of Biochemistry , Indian Institute of Science , Bengaluru , India
| | - Utpal Tatu
- Department of Biochemistry , Indian Institute of Science , Bengaluru , India
| | - Jayanta Haldar
- Chemical biology and Medicinal Chemistry Laboratory , New Chemistry Unit , Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR) , Jakkur , Bengaluru 560064 , Karnataka , India .
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38
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Chen F, Flaherty BR, Cohen CE, Peterson DS, Zhao Y. Direct detection of malaria infected red blood cells by surface enhanced Raman spectroscopy. NANOMEDICINE : NANOTECHNOLOGY, BIOLOGY, AND MEDICINE 2016; 12:1445-51. [PMID: 27015769 PMCID: PMC4955673 DOI: 10.1016/j.nano.2016.03.001] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2015] [Revised: 02/04/2016] [Accepted: 03/02/2016] [Indexed: 02/05/2023]
Abstract
Surface enhanced Raman spectra (SERS) of normal red blood cells (RBCs) and Plasmodium falciparum infected RBCs (iRBCs) at different post invasion time were obtained based on silver nanorod array substrates. Distinct spectral differences were observed due to the cell membrane modification of RBCs during malaria infection. The SERS spectra of ring stage iRBCs had a characteristic Raman peak at Δv=1599cm(-1) as compared to those of normal RBCs, while the trophozoite and schizoid stages had identical SERS spectra with a characteristic peak at Δv=723cm(-1), which is significantly different from ring stage iRBCs, consistent with ongoing modification of the iRBC membrane. Since ring stage iRBCs of P. falciparum are found circulating in blood, such a difference provides a new strategy for rapid malaria detection. The limit of detection as well as the ability to detect a mixed iRBC and RBC solution was also investigated.
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Affiliation(s)
- Funing Chen
- Department of Physics and Astronomy, the University of Georgia, Athens, GA, USA; Nanoscale Science & Engineering Center, the University of Georgia, Athens, GA, USA.
| | - Briana R Flaherty
- Department of Infectious Diseases, the University of Georgia, Athens, GA, USA; Center for Tropical and Emerging Global Diseases, the University of Georgia, Athens, GA, USA
| | - Charli E Cohen
- Department of Infectious Diseases, the University of Georgia, Athens, GA, USA
| | - David S Peterson
- Department of Infectious Diseases, the University of Georgia, Athens, GA, USA; Center for Tropical and Emerging Global Diseases, the University of Georgia, Athens, GA, USA
| | - Yiping Zhao
- Department of Physics and Astronomy, the University of Georgia, Athens, GA, USA; Nanoscale Science & Engineering Center, the University of Georgia, Athens, GA, USA
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39
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Mefloquine induces ROS mediated programmed cell death in malaria parasite: Plasmodium. Apoptosis 2016; 21:955-64. [DOI: 10.1007/s10495-016-1265-y] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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40
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Pretzel J, Mohring F, Rahlfs S, Becker K. Antiparasitic peptides. ADVANCES IN BIOCHEMICAL ENGINEERING/BIOTECHNOLOGY 2016; 135:157-92. [PMID: 23615879 DOI: 10.1007/10_2013_191] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/20/2023]
Abstract
: The most important parasitic diseases, malaria, leishmaniasis, trypanosomiasis, and schistosomiasis, are a great burden to mankind, threatening the life of millions of people worldwide and mostly affecting the poorest. Because drug resistance is increasing and vaccines are rarely available, novel chemotherapeutic compounds are necessary in order to treat these devastating diseases. Insects serve as vectors of many human parasitic diseases and have been shown to express a huge variety of antimicrobial peptides (AMPs). Therefore, research activity on insect-derived AMPs has been increasing in the last 40 years. This chapter summarizes the current state of research on the possible role of AMPs as potential chemotherapeutic compounds against human parasitic diseases. As a representative antimicrobial peptide with antiparasitic activity, the structure of insect defensin A is shown [PDB accession code: 1ICA]. The molecule is surrounded by schematic representations of the human pathogenic parasites Plasmodium, Leishmania and Trypanosoma.
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Affiliation(s)
- Jette Pretzel
- Biochemistry and Molecular Biology, Interdisciplinary Research Center, Heinrich-Buff-Ring 26-32, 35392, Giessen, Germany
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41
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Tran PN, Brown SHJ, Rug M, Ridgway MC, Mitchell TW, Maier AG. Changes in lipid composition during sexual development of the malaria parasite Plasmodium falciparum. Malar J 2016; 15:73. [PMID: 26852399 PMCID: PMC4744411 DOI: 10.1186/s12936-016-1130-z] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2015] [Accepted: 01/23/2016] [Indexed: 01/13/2023] Open
Abstract
Background The development of differentiated sexual stages (gametocytes) within human red blood cells is essential for the propagation of the malaria parasite, since only mature gametocytes will survive in the mosquito’s midgut. Hence gametocytogenesis is a pre-requisite for transmission of the disease. Physiological changes involved in sexual differentiation are still enigmatic. In particular the lipid metabolism—despite being central to cellular regulation and development—is not well explored. Methods Here the lipid profiles of red blood cells infected with the five different sexual stages of Plasmodium falciparum were analysed by mass spectrometry and compared to those from uninfected and asexual trophozoite infected erythrocytes. Results Fundamental differences between erythrocytes infected with the different parasite stages were revealed. In mature gametocytes many lipids that decrease in the trophozoite and early gametocyte infected red blood cells are regained. In particular, regulators of membrane fluidity, cholesterol and sphingomyelin, increased significantly during gametocyte maturation. Neutral lipids (serving mainly as caloriometric reserves) increased from 3 % of total lipids in uninfected to 27 % in stage V gametocyte infected red blood cells. The major membrane lipid class (phospholipids) decreased during gametocyte development. Conclusions The lipid profiles of infected erythrocytes are characteristic for the particular parasite life cycle and maturity stages of gametocytes. The obtained lipid profiles are crucial in revealing the lipid metabolism of malaria parasites and identifying targets to interfere with this deadly disease. Electronic supplementary material The online version of this article (doi:10.1186/s12936-016-1130-z) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Phuong N Tran
- Research School of Biology, The Australian National University, Canberra, ACT, Australia. .,La Trobe Institute of Molecular Science, La Trobe University, Melbourne, VIC, Australia.
| | - Simon H J Brown
- School of Medicine and Illawarra Health and Medical Research Institute, University of Wollongong, Wollongong, NSW, Australia.
| | - Melanie Rug
- Research School of Biology, The Australian National University, Canberra, ACT, Australia. .,Centre for Advanced Microscopy, The Australian National University, Canberra, ACT, Australia.
| | - Melanie C Ridgway
- Research School of Biology, The Australian National University, Canberra, ACT, Australia.
| | - Todd W Mitchell
- School of Medicine and Illawarra Health and Medical Research Institute, University of Wollongong, Wollongong, NSW, Australia.
| | - Alexander G Maier
- Research School of Biology, The Australian National University, Canberra, ACT, Australia.
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Maduramicin Rapidly Eliminates Malaria Parasites and Potentiates the Gametocytocidal Activity of the Pyrazoleamide PA21A050. Antimicrob Agents Chemother 2015; 60:1492-9. [PMID: 26711768 DOI: 10.1128/aac.01928-15] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2015] [Accepted: 12/08/2015] [Indexed: 12/23/2022] Open
Abstract
New strategies targeting Plasmodium falciparum gametocytes, the sexual-stage parasites that are responsible for malaria transmission, are needed to eradicate this disease. Most commonly used antimalarials are ineffective against P. falciparum gametocytes, allowing patients to continue to be infectious for over a week after asexual parasite clearance. A recent screen for gametocytocidal compounds demonstrated that the carboxylic polyether ionophore maduramicin is active at low nanomolar concentrations against P. falciparum sexual stages. In this study, we showed that maduramicin has an EC50 (effective concentration that inhibits the signal by 50%) of 14.8 nM against late-stage gametocytes and significantly blocks in vivo transmission in a mouse model of malaria transmission. In contrast to other reported gametocytocidal agents, maduramicin acts rapidly in vitro, eliminating gametocytes and asexual schizonts in less than 12 h without affecting uninfected red blood cells (RBCs). Ring stage parasites are cleared by 24 h. Within an hour of drug treatment, 40% of the normally crescent-shaped gametocytes round up and become spherical. The number of round gametocytes increases to >60% by 2 h, even before a change in membrane potential as monitored by MitoProbe DiIC1 (5) is detectable. Maduramicin is not preferentially taken up by gametocyte-infected RBCs compared to uninfected RBCs, suggesting that gametocytes are more sensitive to alterations in cation concentration than RBCs. Moreover, the addition of 15.6 nM maduramicin enhanced the gametocytocidal activity of the pyrazoleamide PA21A050, which is a promising new antimalarial candidate associated with an increase in intracellular Na(+) concentration that is proposed to be due to inhibition of PfATP4, a putative Na(+) pump. These results underscore the importance of cation homeostasis in sexual as well as asexual intraerythrocytic-stage P. falciparum parasites and the potential of targeting this pathway for drug development.
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Kozicki M, Czepiel J, Biesiada G, Nowak P, Garlicki A, Wesełucha-Birczyńska A. The ring-stage of Plasmodium falciparum observed in RBCs of hospitalized malaria patients. Analyst 2015; 140:8007-16. [PMID: 26524434 DOI: 10.1039/c5an01598g] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Raman spectra of the blood samples obtained directly from hospitalized malaria patients with Plasmodium falciparum (P. falciparum) in the ring-stage were analyzed. Changes observed in the Raman band intensities of the infected patients compared to healthy volunteers are the result of parasite activity inside red blood cells. The obtained spectra were discussed by analyzing differences in particular spectral regions by evaluating changes in the band intensity ratios as well as using PCA analysis. The alterations of erythrocyte membranes caused by parasite penetration are visible by a reduced I1130/I1075 intensity ratio expressing the lowering of the amount of domains arranged in trans conformation. The I2930/I2850 ratio, which is a measure of modifications in structures of membrane proteins and lipids, in infected red blood cells increases, which is caused by malaria protein export to the erythrocyte membrane and expresses the membrane disarrangement. In the pyrrole ring vibration region, the ν4 band marker of the oxygenated-Hb shows at 1371 cm(-1) whereas the ν4 band at 1353 cm(-1) related to the deoxygenated-Hb is observed for malaria patients and is characterized by a higher intensity in infected erythrocytes. The amide I analysis shows the modifications in the secondary structure composition in the infected RBCs. We found that the P. falciparum infection leads to a decrease in the α-helical content and a concurrent increase in undefined (random-coil) structures. It was observed that the Raman spectra changes are also the result of the hemozoin formation process. In the pyrrole ring stretching vibration region, the increase of 1220 cm(-1) (deoxyHb) as against 1248 cm(-1) (oxyHb) may be considered as a signal of hemozoin formation in the RBCs. Relatively intense band patterns at 1560 cm(-1) and also at 1570 cm(-1) and 1552 cm(-1) may be due to the hemozoin that is formed according to parasite activity. The results of medical diagnostic tests had not presented changes in patient RBC parameters. A significant reduction in WBC count was noticed along with a decrease in neutrophil and platelet count when compared with the control group. Although no change is observed in the overall picture of the erythrocytes, pathological changes are evident in the Raman spectrum.
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Affiliation(s)
- Mateusz Kozicki
- Faculty of Chemistry, Jagiellonian University, Kraków, Poland.
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Kozicki M, Creek DJ, Sexton A, Morahan BJ, Wesełucha-Birczyńska A, Wood BR. An attenuated total reflection (ATR) and Raman spectroscopic investigation into the effects of chloroquine on Plasmodium falciparum-infected red blood cells. Analyst 2015; 140:2236-46. [PMID: 25654140 DOI: 10.1039/c4an01904k] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Attenuated Total Reflection Fourier Transform Infrared (ATR-FTIR) and Raman spectroscopy were used to compare chloroquine (CQ)-treated and untreated cultured Plasmodium falciparum-infected human red blood cells (iRBCs). The studies were carried out in parallel from the same starting cultures using both spectroscopic techniques, in duplicate. ATR FTIR spectra showed modifications in the heme vibrational bands as well as increases in the CH2/CH3 stretching bands in the 3100-2800 cm(-1) region of CQ-treated iRBCs consistent with an increase in lipid content. Other changes consisted of secondary structural variations including shifts in the amide I and II modes, along with changes in RNA and carbohydrate bands. Raman microspectroscopy of single red blood cells using 532 nm revealed subtle changes in the positions and intensity of ν37 of the core size region marker band and ν4 in the pyrrole ring-stretching region between untreated and CQ-treated iRBCs. Similar patterns in the corresponding relations were also observed in the non-fundamental (overtone region) between the control and treated cells. These differences were consistent with higher levels of oxygenated hemoglobin (oxyHb) in the treated cells as shown in a Principle Component Analysis (PCA) loadings plot. The results obtained demonstrate that vibrational spectroscopic techniques can provide insight into the effect of quinolines on iRBCs and thus may assist understanding the sensitivity and resistance of new and existing anti-malarial drugs.
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Affiliation(s)
- M Kozicki
- Faculty of Chemistry, Ingardena 3, Kraków, Poland
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Cyclosporin A in Membrane Lipids Environment: Implications for Antimalarial Activity of the Drug--The Langmuir Monolayer Studies. J Membr Biol 2015; 248:1021-32. [PMID: 26077844 PMCID: PMC4611017 DOI: 10.1007/s00232-015-9814-9] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2015] [Accepted: 06/06/2015] [Indexed: 01/08/2023]
Abstract
Cyclosporin A (CsA), a hydrophobic cyclic peptide produced by the fungus Tolypocladium inflatum, is well known for its high efficiency as an immunosuppressor for transplanted organs and anti-inflammatory properties; however, it is also active as antiparasitic (antimalarial) drug. Antimalarial mechanism of CsA action lacks a detailed understanding at molecular level. Due to a high lipophilicity of CsA, it is able to interact with lipids of cellular membrane; however, molecular targets of this drug are still unknown. To get a deeper insight into the mode of antimalarial activity of CsA, it is of utmost importance to examine its interactions with membrane components. To reach this goal, the Langmuir monolayer technique, which serves as a very useful, easy to handle and controllable model of biomembranes, has been employed. In this work, the interactions between CsA and main membrane lipids, i.e., cholesterol (Chol), 2-oleoyl-1-palmitoyl-3-phosphocholine (POPC), and sphingomyelin (SM), have been investigated. Attractive interactions are observed only for CsA mixtures with SM, while repulsive forces occur in systems containing remaining membrane lipids. Taking into consideration mutual interactions between membrane lipids (Chol-SM; Chol-POPC and SM-POPC), the behavior of CsA in model erythrocyte membrane of normal and infected cells has been analyzed. Our results prove strong affinity of CsA to SM in membrane environment. Since normal and parasitized erythrocytes differ significantly in the level of SM, this phospholipid may be considered as a molecular target for antimalarial activity of CsA.
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Fang X, Reifman J, Wallqvist A. Modeling metabolism and stage-specific growth of Plasmodium falciparum HB3 during the intraerythrocytic developmental cycle. MOLECULAR BIOSYSTEMS 2015; 10:2526-37. [PMID: 25001103 DOI: 10.1039/c4mb00115j] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The human malaria parasite Plasmodium falciparum goes through a complex life cycle, including a roughly 48-hour-long intraerythrocytic developmental cycle (IDC) in human red blood cells. A better understanding of the metabolic processes required during the asexual blood-stage reproduction will enhance our basic knowledge of P. falciparum and help identify critical metabolic reactions and pathways associated with blood-stage malaria. We developed a metabolic network model that mechanistically links time-dependent gene expression, metabolism, and stage-specific growth, allowing us to predict the metabolic fluxes, the biomass production rates, and the timing of production of the different biomass components during the IDC. We predicted time- and stage-specific production of precursors and macromolecules for P. falciparum (strain HB3), allowing us to link specific metabolites to specific physiological functions. For example, we hypothesized that coenzyme A might be involved in late-IDC DNA replication and cell division. Moreover, the predicted ATP metabolism indicated that energy was mainly produced from glycolysis and utilized for non-metabolic processes. Finally, we used the model to classify the entire tricarboxylic acid cycle into segments, each with a distinct function, such as superoxide detoxification, glutamate/glutamine processing, and metabolism of fumarate as a byproduct of purine biosynthesis. By capturing the normal metabolic and growth progression in P. falciparum during the IDC, our model provides a starting point for further elucidation of strain-specific metabolic activity, host-parasite interactions, stress-induced metabolic responses, and metabolic responses to antimalarial drugs and drug candidates.
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Affiliation(s)
- Xin Fang
- Department of Defense Biotechnology High Performance Computing Software Applications Institute, Telemedicine and Advanced Technology Research Center, U.S. Army Medical Research and Materiel Command, Ft. Detrick, MD 21702, USA.
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Essential fatty acid intake and serum fatty acid composition among adolescent girls in central Mozambique. Br J Nutr 2015; 113:1086-95. [PMID: 25772191 DOI: 10.1017/s0007114515000306] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Many African diets are low in fat but are currently changing because of nutrition transition. We studied fat and fatty acid (FA) intake and the essential fatty acid (EFA) status of adolescent girls (aged 14-19 years, n 262) in Zambezia Province, central Mozambique. A cross-sectional study was carried out in a city as well as in the towns and rural villages of a coastal and an inland district. Dietary intake and FA sources were studied in a 24 h dietary recall. FA compositions of cholesteryl esters and phospholipids of non-fasting serum samples were analysed by GLC. Fat intake was low (13-18 % of energy) in all areas. Coconut and palm oil were the main sources of fat, and soyabean oil and maize were the main sources of PUFA. Compared to Food and Agriculture Organization/WHO 2010 recommendations, intake of linoleic acid (LA, 18 : 2n-6) was inadequate in the coastal district, and intakes of n-3 PUFA were inadequate in all areas. FA compositions of serum lipids differed between areas. The proportions of LA tended to be highest in the city and lowest in the rural areas. The phospholipid mead (20 : 3n-9):arachidonic acid (20 : 4n-6) ratio did not indicate EFA insufficiency. LA proportions in phospholipids were low, but those of long-chain n-6 and n-3 PUFA were high in comparison with Western adolescents. To conclude, fat sources, FA intake and EFA status differed between adolescent girls living in different types of communities. Fat intake was low, but EFA insufficiency was not indicated.
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Rotimi SO, Ojo DA, Talabi OA, Ugbaja RN, Balogun EA, Ademuyiwa O. Amoxillin- and pefloxacin-induced cholesterogenesis and phospholipidosis in rat tissues. Lipids Health Dis 2015; 14:13. [PMID: 25879817 PMCID: PMC4339583 DOI: 10.1186/s12944-015-0011-8] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2014] [Accepted: 02/07/2015] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND To investigate whether amoxillin and pefloxacin perturb lipid metabolism. METHODS Rats were treated with therapeutic doses of each antibiotic for 5 and 10 days respectively. Twenty four hours after the last antibiotic treatment and 5 days after antibiotic withdrawal, blood and other tissues (liver, kidney, brain, heart and spleen) were removed from the animals after an overnight fast and analysed for their lipid contents. RESULTS Both antibiotics produced various degrees of compartment-specific dyslipidemia in the animals. While plasma and erythrocyte dyslipidemia was characterised by up-regulation of the concentrations of the major lipids (cholesterol, triglycerides, phospholipids and free fatty acids), hepatic and renal dyslipidemia was characterised by cholesterogenesis and phospholipidosis. Splenic dyslipidemia was characterised by cholesterogenesis and decreased phospholipid levels. Cardiac and brain cholesterol contents were not affected by the antibiotics. A transient phospholipidosis was observed in the brain whereas cardiac phospholipids decreased significantly. Lipoprotein abnormalities were reflected as down-regulation of HDL cholesterol. Furthermore, the two antibiotics increased the activity of hepatic HMG-CoA reductase. Although erythrocyte phospholipidosis was resolved 5 days after withdrawing the antibiotics, dyslipidemia observed in other compartments was still not reversible. CONCLUSION Our findings suggest that induction of cholesterogenesis and phospholipidosis might represent additional adverse effects of amoxillin and pefloxacin.
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Affiliation(s)
- Solomon O Rotimi
- Department of Biological Sciences, Covenant University, Ota, Nigeria.
| | - David A Ojo
- Department of Microbiology, Federal University of Agriculture, Abeokuta, Nigeria.
| | - Olusola A Talabi
- Medical Centre, Federal University of Agriculture, Abeokuta, Nigeria.
| | - Regina N Ugbaja
- Department of Biochemistry, Federal University of Agriculture, Abeokuta, Nigeria.
| | - Elizabeth A Balogun
- Department of Biochemistry, Federal University of Agriculture, Abeokuta, Nigeria.
- Department of Biochemistry, University of Ilorin, Ilorin, Nigeria.
| | - Oladipo Ademuyiwa
- Department of Biochemistry, Federal University of Agriculture, Abeokuta, Nigeria.
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Spillman NJ, Beck JR, Goldberg DE. Protein export into malaria parasite-infected erythrocytes: mechanisms and functional consequences. Annu Rev Biochem 2015; 84:813-41. [PMID: 25621510 DOI: 10.1146/annurev-biochem-060614-034157] [Citation(s) in RCA: 74] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Phylum Apicomplexa comprises a large group of obligate intracellular parasites of high medical and veterinary importance. These organisms succeed intracellularly by effecting remarkable changes in a broad range of diverse host cells. The transformation of the host erythrocyte is particularly striking in the case of the malaria parasite Plasmodium falciparum. P. falciparum exports hundreds of proteins that mediate a complex cellular renovation marked by changes in the permeability, rigidity, and cytoadherence properties of the host erythrocyte. The past decade has seen enormous progress in understanding the identity and function of these exported effectors, as well as the mechanisms by which they are trafficked into the host cell. Here we review these advances, place them in the context of host manipulation by related apicomplexans, and propose key directions for future research.
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Barroso RP, Basso LGM, Costa-Filho AJ. Interactions of the antimalarial amodiaquine with lipid model membranes. Chem Phys Lipids 2014; 186:68-78. [PMID: 25555567 DOI: 10.1016/j.chemphyslip.2014.12.003] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2014] [Revised: 12/24/2014] [Accepted: 12/26/2014] [Indexed: 11/28/2022]
Abstract
A detailed molecular description of the mechanism of action of the antimalarial drug amodiaquine (AQ) is still an open issue. To gain further insights on that, we studied the interactions of AQ with lipid model membranes composed of dipalmitoylphosphatidylcholine (DPPC) and dipalmitoylphosphatidylserine (DPPS) by spin labeling electron spin resonance (ESR) and differential scanning calorimetry (DSC). Both techniques indicate a coexistence of an ordered DPPS-rich domain with a disordered DPPC-rich domain in the binary DPPC/DPPS system. We found that AQ slightly lowered the melting transition temperatures associated to both domains and significantly increased the enthalpy change of the whole DPPC/DPPS phase transition. DSC and ESR data also suggest that AQ increases the number of DPPC molecules in the DPPC-rich domains. AQ also causes opposing ordering effects on different regions of the bilayer: while the drug increases the ordering of the lipid acyl chains from carbon 7 to 16, it decreases the order parameter of the lipid head group and of carbon 5. The gel phase was mostly affected by the presence of AQ, suggesting that AQ is able to influence more organized lipid domains. Moreover, the effects of AQ and cholesterol on lipid acyl chain ordering and mobility were compared at physiological temperature and, in a general way, they are similar. Our results suggest that the quinoline ring of AQ is located completely inside the lipid bilayers with its phenol ring and the tertiary amine directed towards the head group region. The nonspecific interaction between AQ and DPPC/DPPS bilayers is a combination of electrostatic and hydrophobic interactions.
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Affiliation(s)
- Rafael P Barroso
- Laboratório de Biofísica Molecular, Departamento de Física, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto. Av. Bandeirantes, 3900, 14040-901 Ribeirao Preto, SP, Brazil
| | - Luis G M Basso
- Laboratório de Biofísica Molecular, Departamento de Física, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto. Av. Bandeirantes, 3900, 14040-901 Ribeirao Preto, SP, Brazil
| | - Antonio J Costa-Filho
- Laboratório de Biofísica Molecular, Departamento de Física, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto. Av. Bandeirantes, 3900, 14040-901 Ribeirao Preto, SP, Brazil.
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