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Bhide AR, Surve DH, Jindal AB. Nanocarrier based active targeting strategies against erythrocytic stage of malaria. J Control Release 2023; 362:297-308. [PMID: 37625598 DOI: 10.1016/j.jconrel.2023.08.043] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2023] [Revised: 08/03/2023] [Accepted: 08/22/2023] [Indexed: 08/27/2023]
Abstract
The Global Technical Strategy for Malaria 2016-2030 aims to achieve a 90% reduction in malaria cases, and strategic planning and execution are crucial for accomplishing this target. This review aims to understand the complex interaction between erythrocytic receptors and parasites and to use this knowledge to actively target the erythrocytic stage of malaria. The review provides insight into the malaria life cycle, which involves various receptors such as glycophorin A, B, C, and D (GPA/B/C/D), complement receptor 1, basigin, semaphorin 7a, Band 3/ GPA, Kx, and heparan sulfate proteoglycan for parasite cellular binding and ingress in the erythrocytic and exo-erythrocytic stages. Synthetic peptides mimicking P. falciparum receptor binding ligands, human serum albumin, chondroitin sulfate, synthetic polymers, and lipids have been utilized as ligands and decorated onto nanocarriers for specific targeting to parasite-infected erythrocytes. The need of the hour for treatment and prophylaxis against malaria is a broadened horizon that includes multiple targeting strategies against the entry, proliferation, and transmission stages of the parasite. Platform technologies with established pre-clinical safety and efficacy should be translated into clinical evaluation and formulation scale-up. Future development should be directed towards nanovaccines as proactive tools against malaria infection.
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Affiliation(s)
- Atharva R Bhide
- Department of Pharmacy, Birla Institute of Technology and Science Pilani, Pilani Campus, Jhunjhunu, Rajasthan 333031, India
| | - Dhanashree H Surve
- Department of Chemical Engineering, University of Massachusetts, Amherst, MA 01003, United States
| | - Anil B Jindal
- Department of Pharmacy, Birla Institute of Technology and Science Pilani, Pilani Campus, Jhunjhunu, Rajasthan 333031, India.
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Rashidzadeh H, Tabatabaei Rezaei SJ, Danafar H, Ramazani A. Multifunctional pH-responsive nanogel for malaria and cancer treatment: Hitting two targets with one arrow. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103740] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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3
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Mvango S, Matshe WMR, Balogun AO, Pilcher LA, Balogun MO. Nanomedicines for Malaria Chemotherapy: Encapsulation vs. Polymer Therapeutics. Pharm Res 2018; 35:237. [PMID: 30324329 DOI: 10.1007/s11095-018-2517-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2018] [Accepted: 10/03/2018] [Indexed: 12/29/2022]
Abstract
Malaria is one of the oldest infectious diseases that afflict humans and its history extends back for millennia. It was once prevalent throughout the globe but today it is mainly endemic to tropical regions like sub-Saharan Africa and South-east Asia. Ironically, treatment for malaria has existed for centuries yet it still exerts an enormous death toll. This contradiction is attributed in part to the rapid development of resistance by the malaria parasite to chemotherapeutic drugs. In turn, resistance has been fuelled by poor patient compliance to the relatively toxic antimalarial drugs. While drug toxicity and poor pharmacological potentials have been addressed or ameliorated with various nanomedicine drug delivery systems in diseases like cancer, no clinically significant success story has been reported for malaria. There have been several reviews on the application of nanomedicine technologies, especially drug encapsulation, to malaria treatment. Here we extend the scope of the collation of the nanomedicine research literature to polymer therapeutics technology. We first discuss the history of the disease and how a flurry of scientific breakthroughs in the latter part of the nineteenth century provided scientific understanding of the disease. This is followed by a review of the disease biology and the major antimalarial chemotherapy. The achievements of nanomedicine in cancer and other infectious diseases are discussed to draw parallels with malaria. A review of the current state of the research into malaria nanomedicines, both encapsulation and polymer therapeutics polymer-drug conjugation technologies, is covered and we conclude with a consideration of the opportunities and challenges offered by both technologies.
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Affiliation(s)
- Sindisiwe Mvango
- Biopolymer Modification & Therapeutics Lab, Polymers & Composites, Materials Science & Manufacturing, Council for Scientific and Industrial Research, Meiring Naude Road, Brummeria, Pretoria, 0001, South Africa.,Department of Chemistry, University of Pretoria, Pretoria, 0002, South Africa
| | - William M R Matshe
- Biopolymer Modification & Therapeutics Lab, Polymers & Composites, Materials Science & Manufacturing, Council for Scientific and Industrial Research, Meiring Naude Road, Brummeria, Pretoria, 0001, South Africa
| | - Abideen O Balogun
- Department of Medicine, Nottingham University Hospital, Nottingham, UK
| | - Lynne A Pilcher
- Department of Chemistry, University of Pretoria, Pretoria, 0002, South Africa
| | - Mohammed O Balogun
- Biopolymer Modification & Therapeutics Lab, Polymers & Composites, Materials Science & Manufacturing, Council for Scientific and Industrial Research, Meiring Naude Road, Brummeria, Pretoria, 0001, South Africa.
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Boateng-marfo Y, Dong Y, Loh ZH, Lin H, Ng WK. Intravenous human serum albumin (HSA)-bound artemether nanoparticles for treatment of severe malaria. Colloids Surf A Physicochem Eng Asp 2018; 536:20-9. [DOI: 10.1016/j.colsurfa.2017.08.016] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Sidhaye AA, Bhuran KC, Zambare S, Abubaker M, Nirmalan N, Singh KK. Bio-inspired artemether-loaded human serum albumin nanoparticles for effective control of malaria-infected erythrocytes. Nanomedicine (Lond) 2016; 11:2809-2828. [PMID: 27759489 DOI: 10.2217/nnm-2016-0235] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
AIM The intra-erythrocytic development of the malarial parasite is dependent on active uptake of nutrients, including human serum albumin (HSA), into parasitized red blood cells (pRBCs). We have designed HSA-based nanoparticles as a potential drug-delivery option for antimalarials. METHODS Artemether-loaded nanoparticles (AANs) were designed and antimalarial activity evaluated in vitro/in vivo using Plasmodium falciparum/Plasmodium berghei species, respectively. RESULTS Selective internalization of AAN into Plasmodium-infected RBCs in preference to healthy erythrocytes was observed using confocal imaging. In vitro studies showed 50% dose reduction for AAN as compared with drug-only controls to achieve IC50 levels of inhibition. The nanoparticles exhibited twofold higher peak drug concentrations in RBCs with antimalarial activity at 50% of therapeutic doses in P. bergei infected mice. CONCLUSION Novel HSA-based nanoparticles offer safe and effective approach for selective targeting of antimalarial drugs.
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Affiliation(s)
- Aditi A Sidhaye
- CU Shah College of Pharmacy, SNDT Women's University, Santacruz (W), Mumbai 400049, India
| | - Kanchan C Bhuran
- CU Shah College of Pharmacy, SNDT Women's University, Santacruz (W), Mumbai 400049, India
| | - Sneha Zambare
- CU Shah College of Pharmacy, SNDT Women's University, Santacruz (W), Mumbai 400049, India
| | - Munna Abubaker
- School of Environment & Life Sciences, University of Salford, Manchester, M5 4WT, UK
| | - Niroshini Nirmalan
- School of Environment & Life Sciences, University of Salford, Manchester, M5 4WT, UK
| | - Kamalinder K Singh
- CU Shah College of Pharmacy, SNDT Women's University, Santacruz (W), Mumbai 400049, India.,School of Pharmacy & Biomedical Sciences, University of Central Lancashire, Preston, PR1 2HE, UK
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Pain M, Fuller AW, Basore K, Pillai AD, Solomon T, Bokhari AAB, Desai SA. Synergistic Malaria Parasite Killing by Two Types of Plasmodial Surface Anion Channel Inhibitors. PLoS One 2016; 11:e0149214. [PMID: 26866812 PMCID: PMC4750852 DOI: 10.1371/journal.pone.0149214] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2015] [Accepted: 01/28/2016] [Indexed: 11/17/2022] Open
Abstract
Malaria parasites increase their host erythrocyte's permeability to a broad range of ions and organic solutes. The plasmodial surface anion channel (PSAC) mediates this uptake and is an established drug target. Development of therapies targeting this channel is limited by several problems including interactions between known inhibitors and permeating solutes that lead to incomplete channel block. Here, we designed and executed a high-throughput screen to identify a novel class of PSAC inhibitors that overcome this solute-inhibitor interaction. These new inhibitors differ from existing blockers and have distinct effects on channel-mediated transport, supporting a model of two separate routes for solute permeation though PSAC. Combinations of inhibitors specific for the two routes had strong synergistic action against in vitro parasite propagation, whereas combinations acting on a single route produced only additive effects. The magnitude of synergism depended on external nutrient concentrations, consistent with an essential role of the channel in parasite nutrient acquisition. The identified inhibitors will enable a better understanding of the channel's structure-function and may be starting points for novel combination therapies that produce synergistic parasite killing.
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Affiliation(s)
- Margaret Pain
- The Laboratory of Malaria and Vector Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville, Maryland, United States of America
| | - Alexandra W Fuller
- The Laboratory of Malaria and Vector Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville, Maryland, United States of America
| | - Katherine Basore
- The Laboratory of Malaria and Vector Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville, Maryland, United States of America
| | - Ajay D Pillai
- The Laboratory of Malaria and Vector Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville, Maryland, United States of America
| | - Tsione Solomon
- The Laboratory of Malaria and Vector Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville, Maryland, United States of America
| | - Abdullah A B Bokhari
- The Laboratory of Malaria and Vector Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville, Maryland, United States of America
| | - Sanjay A Desai
- The Laboratory of Malaria and Vector Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville, Maryland, United States of America
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Reinhart SA, Schulzki T, Reinhart WH. Albumin reverses the echinocytic shape transformation of stored erythrocytes. Clin Hemorheol Microcirc 2015; 60:437-49. [DOI: 10.3233/ch-141899] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Sophie A. Reinhart
- Department of Internal Medicine, Kantonsspital Graubünden, Chur, Switzerland
| | - Thomas Schulzki
- Division of Transfusion Medicine, Kantonsspital Graubünden, Chur, Switzerland
| | - Walter H. Reinhart
- Department of Internal Medicine, Kantonsspital Graubünden, Chur, Switzerland
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Ibrahim N, Ibrahim H, Sabater AM, Mazier D, Valentin A, Nepveu F. Artemisinin nanoformulation suitable for intravenous injection: Preparation, characterization and antimalarial activities. Int J Pharm 2015; 495:671-9. [PMID: 26383839 DOI: 10.1016/j.ijpharm.2015.09.020] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2015] [Revised: 09/10/2015] [Accepted: 09/11/2015] [Indexed: 02/02/2023]
Abstract
More than 40 years after its discovery, artemisinin has become the most promising antimalarial agent. However, no intravenous formulation is available due to its poor aqueous solubility. Here, we report the preparation, characterization, and in vitro and in vivo biological evaluation of biodegradable albumin-bound artemisinin nanoparticles. The nanoparticles were prepared by a combination of a bottom-up and a top-down processes and characterized by different spectroscopic techniques. The preparation process was optimized to develop a nanoformulation with the smallest possible diameter and good homogeneity suitable for intravenous injection enabling direct contact of artemisinin with infected erythrocytes. Chemically and physically stable artemisinin nanoparticles were obtained with excellent entrapment efficiency. In in vitro experiments, the artemisinin nanoformulation was interestingly more effective than non-formulated artemisinin. In Plasmodiumm falciparum-infected 'humanized' mice, the nanoparticles proved to be highly effective with 96% parasitemia inhibition at 10mg/kg/day, prolonging mean survival time without recrudescence. This nanoparticulate albumin-bound system allows the intravenous administration of artemisinin for the first time without harsh organic solvents or cosolvents with 100% bioavailability.
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Affiliation(s)
- Nehal Ibrahim
- Université de Toulouse, UPS, UMR 152 (PHARMA-DEV), F-31062 Toulouse Cedex 9, France; IRD, UMR 152, F-31062 Toulouse Cedex 9, France
| | - Hany Ibrahim
- Université de Toulouse, UPS, UMR 152 (PHARMA-DEV), F-31062 Toulouse Cedex 9, France; IRD, UMR 152, F-31062 Toulouse Cedex 9, France.
| | - Alicia Moreno Sabater
- Sorbonne Universités, UPMC Univ. Paris 06, CR7, Centre d'Immunologie et des Maladies Infectieuses (CIMI-Paris), 91 Bd de l'hôpital, F-75013 Paris, France; INSERM, U1135, CIMI-PARIS, 91 Bd de l'hôpital, F-75013 Paris, France; CNRS, ERL 8255, CIMI-PARIS, 91 Bd de l'hôpital, F-75013 Paris, France
| | - Dominique Mazier
- Sorbonne Universités, UPMC Univ. Paris 06, CR7, Centre d'Immunologie et des Maladies Infectieuses (CIMI-Paris), 91 Bd de l'hôpital, F-75013 Paris, France; INSERM, U1135, CIMI-PARIS, 91 Bd de l'hôpital, F-75013 Paris, France; CNRS, ERL 8255, CIMI-PARIS, 91 Bd de l'hôpital, F-75013 Paris, France; AP-HP, Groupe Hospitalier Pitié-Salpêtrière, Service Parasitologie-Mycologie, Paris, France
| | - Alexis Valentin
- Université de Toulouse, UPS, UMR 152 (PHARMA-DEV), F-31062 Toulouse Cedex 9, France; IRD, UMR 152, F-31062 Toulouse Cedex 9, France
| | - Françoise Nepveu
- Université de Toulouse, UPS, UMR 152 (PHARMA-DEV), F-31062 Toulouse Cedex 9, France; IRD, UMR 152, F-31062 Toulouse Cedex 9, France
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9
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Reinhart WH, Piety NZ, Deuel JW, Makhro A, Schulzki T, Bogdanov N, Goede JS, Bogdanova A, Abidi R, Shevkoplyas SS. Washing stored red blood cells in an albumin solution improves their morphologic and hemorheologic properties. Transfusion 2015; 55:1872-81. [PMID: 25752902 DOI: 10.1111/trf.13052] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2014] [Revised: 01/04/2015] [Accepted: 01/19/2015] [Indexed: 12/12/2022]
Abstract
BACKGROUND Prolonged storage of red blood cells (RBCs) leads to storage lesions, which may impair clinical outcomes after transfusion. A hallmark of storage lesions is progressive echinocytic shape transformation, which can be partially reversed by washing in albumin solutions. Here we have investigated the impact of this shape recovery on biorheologic variables. STUDY DESIGN AND METHODS RBCs stored hypothermically for 6 to 7 weeks were washed in a 1% human serum albumin (HSA) solution. RBC deformability was measured with osmotic gradient ektacytometry. The viscosity of RBC suspensions was measured with a Couette-type viscometer. The flow behavior of RBCs suspended at 40% hematocrit was tested with an artificial microvascular network (AMVN). RESULTS Washing in 1% albumin reduced higher degrees of echinocytes and increased the frequency of discocytes, thereby shifting the morphologic index toward discocytosis. Washing also reduced RBC swelling. This shape recovery was not seen after washing in saline, buffer, or plasma. RBC shape normalization did not improve cell deformability measured by ektacytometry, but it tended to decrease suspension viscosities at low shear rates and improved the perfusion of an AMVN. CONCLUSIONS Washing of stored RBCs in a 1% HSA solution specifically reduces echinocytosis, and this shape recovery has a beneficial effect on microvascular perfusion in vitro. Washing in 1% albumin may represent a new approach to improving the quality of stored RBCs and thus potentially reducing the likelihood of adverse clinical outcomes associated with transfusion of blood stored for longer periods of time.
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Affiliation(s)
- Walter H Reinhart
- Department of Internal Medicine, Kantonsspital Graubünden, Chur, Switzerland
| | - Nathaniel Z Piety
- Department of Biomedical Engineering, University of Houston, Houston, Texas
| | | | - Asya Makhro
- Institute of Veterinary Physiology, University of Zürich, Zürich, Switzerland
| | - Thomas Schulzki
- Department of Internal Medicine, Kantonsspital Graubünden, Chur, Switzerland
| | - Nikolay Bogdanov
- Institute of Veterinary Physiology, University of Zürich, Zürich, Switzerland
| | | | - Anna Bogdanova
- Institute of Veterinary Physiology, University of Zürich, Zürich, Switzerland
| | - Rajaa Abidi
- Department of Biomedical Engineering, University of Houston, Houston, Texas
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Ibrahim N, Ibrahim H, Dormoi J, Briolant S, Pradines B, Moreno A, Mazier D, Legrand P, Nepveu F. Albumin-bound nanoparticles of practically water-insoluble antimalarial lead greatly enhance its efficacy. Int J Pharm 2014; 464:214-24. [PMID: 24412521 DOI: 10.1016/j.ijpharm.2014.01.001] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2013] [Revised: 12/28/2013] [Accepted: 01/02/2014] [Indexed: 01/08/2023]
Abstract
We recently showed that the indolone-N-oxides can be promising candidates for the treatment of chloroquine-resistant malaria. However, the in vivo assays have been hampered by the very poor aqueous solubility of these compounds resulting in poor and variable activity. Here, we describe the preparation, characterization and in vivo evaluation of biodegradable albumin-bound indolone-N-oxide nanoparticles. Nanoparticles were prepared by precipitation followed by high-pressure homogenization and characterized by photon correlation spectroscopy, transmission electron microscopy, differential scanning calorimetry and X-ray powder diffraction. The process was optimized to yield nanoparticles of controllable diameter with narrow size distribution suitable for intravenous administration, which guarantees direct drug contact with parasitized erythrocytes. Stable nanoparticles showed greatly enhanced dissolution rate (complete drug release within 30 min compared to 1.5% of pure drug) preserving the rapid antimalarial activity. The formulation achieved complete cure of Plasmodium berghei-infected mice at 25mg/kg with parasitemia inhibition (99.1%) comparable to that of artesunate and chloroquine and was remarkably more effective in prolonging survival time and inhibiting recrudescence. In 'humanized' mice infected with Plasmodium falciparum, the same dose proved to be highly effective: with parasitemia reduced by 97.5% and the mean survival time prolonged. This formulation can help advance the preclinical trials of indolone-N-oxides. Albumin-bound nanoparticles represent a new strategic approach to use this most abundant plasma protein to target malaria-infected erythrocytes.
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Affiliation(s)
- Nehal Ibrahim
- Université de Toulouse, UPS, UMR 152 (Laboratoire de pharmacochimie et pharmacologie pour le développement, Pharma-DEV), F-31062 Toulouse cedex 9, France; IRD, UMR 152, F-31062 Toulouse cedex 9, France
| | - Hany Ibrahim
- Université de Toulouse, UPS, UMR 152 (Laboratoire de pharmacochimie et pharmacologie pour le développement, Pharma-DEV), F-31062 Toulouse cedex 9, France; IRD, UMR 152, F-31062 Toulouse cedex 9, France.
| | - Jerome Dormoi
- Unité de Parasitologie, Institut de Recherche Biomédicale des Armées (IRBA), Le Pharo, 13262 Marseille, France; Unité de Recherche Maladies Infectieuses et Tropicales Emergentes (URMITE), Faculté de Médecine La Timone, Université Aix-Marseille, 13385 Marseille cedex 5, France
| | - Sébastien Briolant
- Unité de Parasitologie, Institut de Recherche Biomédicale des Armées (IRBA), Le Pharo, 13262 Marseille, France; Unité de Recherche Maladies Infectieuses et Tropicales Emergentes (URMITE), Faculté de Médecine La Timone, Université Aix-Marseille, 13385 Marseille cedex 5, France
| | - Bruno Pradines
- Unité de Parasitologie, Institut de Recherche Biomédicale des Armées (IRBA), Le Pharo, 13262 Marseille, France; Unité de Recherche Maladies Infectieuses et Tropicales Emergentes (URMITE), Faculté de Médecine La Timone, Université Aix-Marseille, 13385 Marseille cedex 5, France
| | - Alicia Moreno
- Université Pierre et Marie Curie-Paris 6, UMR S945, Paris, France; Institut National de la Santé et de la Recherche Médicale, U945, Paris, France
| | - Dominique Mazier
- Université Pierre et Marie Curie-Paris 6, UMR S945, Paris, France; Institut National de la Santé et de la Recherche Médicale, U945, Paris, France; AP-HP, Groupe Hospitalier Pitié-Salpêtrière, Service Parasitologie-Mycologie, Paris, France
| | - Philippe Legrand
- Institut Charles-Gerhardt, UMR 5253 CNRS/UM2/ENSCM/UM1, 8 rue de l'école Normale, 34296 Montpellier cedex 05, France
| | - Françoise Nepveu
- Université de Toulouse, UPS, UMR 152 (Laboratoire de pharmacochimie et pharmacologie pour le développement, Pharma-DEV), F-31062 Toulouse cedex 9, France; IRD, UMR 152, F-31062 Toulouse cedex 9, France
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Minetti G, Egée S, Mörsdorf D, Steffen P, Makhro A, Achilli C, Ciana A, Wang J, Bouyer G, Bernhardt I, Wagner C, Thomas S, Bogdanova A, Kaestner L. Red cell investigations: Art and artefacts. Blood Rev 2013; 27:91-101. [DOI: 10.1016/j.blre.2013.02.002] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Huber SM. Purinoceptor signaling in malaria-infected erythrocytes. Microbes Infect 2012; 14:779-86. [PMID: 22580091 DOI: 10.1016/j.micinf.2012.04.009] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2012] [Revised: 04/13/2012] [Accepted: 04/13/2012] [Indexed: 01/25/2023]
Abstract
Human erythrocytes are endowed with ATP release pathways and metabotropic and ionotropic purinoceptors. This review summarizes the pivotal function of purinergic signaling in erythrocyte control of vascular tone, in hemolytic septicemia, and in malaria. In malaria, the intraerythrocytic parasite exploits the purinergic signaling of its host to adapt the erythrocyte to its requirements.
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Abstract
The intra-erythrocyte growth and survival of the malarial parasite Plasmodium falciparum is responsible for both uncomplicated and severe malaria cases and depends on the parasite's ability to remodel its host cell. Host cell remodelling has several functions for the parasite, such as acquiring nutrients from the extracellular milieu because of the loss of membrane transporters upon erythrocyte differentiation, avoiding splenic clearance by conferring cytoadhesive properties to the infected erythrocyte, escaping the host immune response by exporting antigenically variant proteins at the red blood cell surface. In addition, parasite-induced changes at the red blood cell membrane and sub-membrane skeleton are also necessary for the efficient release of the parasite progeny from the host cell. Here we review these cellular and molecular changes, which might not only sustain parasite growth but also prepare, at a very early stage, the last step of egress from the host cell.
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Affiliation(s)
- Alassane Mbengue
- CNRS UMR 5235, University Montpellier II, Dynamique des Interactions Membranaires Normales et Pathologiques, Montpellier, France
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Ballal A, Bobbala D, Qadri SM, Föller M, Kempe D, Nasir O, Saeed A, Lang F. Anti-malarial effect of gum arabic. Malar J 2011; 10:139. [PMID: 21599958 DOI: 10.1186/1475-2875-10-139] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2011] [Accepted: 05/20/2011] [Indexed: 01/31/2023] Open
Abstract
Background Gum Arabic (GA), a nonabsorbable nutrient from the exudate of Acacia senegal, exerts a powerful immunomodulatory effect on dendritic cells, antigen-presenting cells involved in the initiation of both innate and adaptive immunity. On the other hand GA degradation delivers short chain fatty acids, which in turn have been shown to foster the expression of foetal haemoglobin in erythrocytes. Increased levels of erythrocyte foetal haemoglobin are known to impede the intraerythrocytic growth of Plasmodium and thus confer some protection against malaria. The present study tested whether gum arabic may influence the clinical course of malaria. Methods Human erythrocytes were in vitro infected with Plasmodium falciparum in the absence and presence of butyrate and mice were in vivo infected with Plasmodium berghei ANKA by injecting parasitized murine erythrocytes (1 × 106) intraperitoneally. Half of the mice received gum arabic (10% in drinking water starting 10 days before the day of infection). Results According to the in vitro experiments butyrate significantly blunted parasitaemia only at concentrations much higher (3 mM) than those encountered in vivo following GA ingestion (<1 μM). According to the in vivo experiments the administration of gum arabic slightly but significantly decreased the parasitaemia and significantly extended the life span of infected mice. Discussion GA moderately influences the parasitaemia and survival of Plasmodium-infected mice. The underlying mechanism remained, however, elusive. Conclusions Gum arabic favourably influences the course of murine malaria.
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Thomas SL, Bouyer G, Cueff A, Egée S, Glogowska E, Ollivaux C. Ion channels in human red blood cell membrane: Actors or relics? Blood Cells Mol Dis 2011; 46:261-5. [DOI: 10.1016/j.bcmd.2011.02.007] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2011] [Accepted: 02/15/2011] [Indexed: 10/18/2022]
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Bobbala D, Alesutan I, Föller M, Tschan S, Huber SM, Lang F. Protective effect of amiodarone in malaria. Acta Trop 2010; 116:39-44. [PMID: 20510873 DOI: 10.1016/j.actatropica.2010.05.005] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2009] [Revised: 05/20/2010] [Accepted: 05/20/2010] [Indexed: 01/07/2023]
Abstract
According to previous observations, amiodarone triggers suicidal erythrocyte death or eryptosis, which is characterized by cell shrinkage and exposure of phosphatidylserine at the erythrocyte surface. Eryptosis may in turn accelerate the clearance of Plasmodium-infected erythrocytes. The present study tested whether amiodarone augments phosphatidylserine exposure of Plasmodium-infected erythrocytes, interferes with the development of parasitemia and thus influences the course of malaria. The in vitro infection of human erythrocytes with Plasmodium falciparum (strain BinH) increased annexin V-binding, an effect significantly augmented by amiodarone (10 microM). Amiodarone further significantly decreased intraerythrocytic DNA/RNA content (> or =5 microM) and in vitro parasitemia (> or =1 microM). Following infection of mice with Plasmodiumberghei ANKA by intraperitoneal injection of parasitized murine erythrocytes (1x10(6)) amiodarone (intraperitoneal 50mg/kg b.w.) significantly decreased the parasitemia and increased the survival of P. berghei-infected mice (from 0% to 70% 26 days after infection). Moreover, treatment with amiodarone significantly increased the percentage of PS-exposing infected erythrocytes. In conclusion, amiodarone inhibits intraerythrocytic growth of P. falciparum, enhances suicidal death of infected erythrocytes, decreases parasitemia following P. berghei infection and supports host survival during malaria.
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Affiliation(s)
- Diwakar Bobbala
- Department of Physiology, University of Tübingen, Gmelinstrasse 5, D-72076 Tübingen, Germany
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Ghashghaeinia M, Bobbala D, Wieder T, Koka S, Brück J, Fehrenbacher B, Röcken M, Schaller M, Lang F, Ghoreschi K. Targeting glutathione by dimethylfumarate protects against experimental malaria by enhancing erythrocyte cell membrane scrambling. Am J Physiol Cell Physiol 2010; 299:C791-804. [PMID: 20631250 DOI: 10.1152/ajpcell.00014.2010] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The balance between GSH-levels and oxidative stress is critical for cell survival. The GSH-levels of erythrocytes are dramatically decreased during infection with Plasmodium spp. We therefore investigated the consequences of targeting GSH for erythrocyte and Plasmodium survival in vitro and in vivo using dimethylfumarate (DMF) at therapeutically established dosage. We first show that noninfected red blood cells (RBC) exposed to DMF undergo changes typical of apoptosis or eryptosis, such as cell shrinkage and cell membrane scrambling with subsequent phosphatidylserine (PS) exposure. DMF did not induce appreciable hemolysis. DMF-triggered PS exposure was mediated by intracellular GSH depletion and reversed by the antioxidative N-acetyl-l-cysteine. DMF treatment controlled intraerythrocyte DNA amplification and in vitro parasitemia of Plasmodium falciparum-infected RBC. In vivo, DMF treatment had no effect on RBC count or GSH levels in noninfected mice. Consistent with its effects on infected RBC, DMF treatment abrogated parasitemia and enhanced the survival of mice infected with Plasmodium berghei from 0% to 60%. In conclusion, DMF sensitizes the erythrocytes to the effect of Plasmodium infection on PS exposure, thus accelerating the clearance of infected erythrocytes. Accordingly, DMF treatment favorably influences the clinical course of malaria. As DMF targets mechanisms within the host cell, it is not likely to generate resistance of the pathogen.
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Affiliation(s)
- Mehrdad Ghashghaeinia
- Physiologisches Institut der Universität Tübingen, Gmelinstr. 5, D-72076 Tübingen, Germany
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Alesutan I, Bobbala D, Qadri SM, Estremera A, Föller M, Lang F. Beneficial effect of aurothiomalate on murine malaria. Malar J 2010; 9:118. [PMID: 20459650 PMCID: PMC2875225 DOI: 10.1186/1475-2875-9-118] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2009] [Accepted: 05/07/2010] [Indexed: 12/29/2022] Open
Abstract
Background Premature death of Plasmodium-infected erythrocytes is considered to favourably influence the clinical course of malaria. Aurothiomalate has previously been shown to trigger erythrocyte death or eryptosis, which is characterized by cell membrane scrambling leading to phosphatidylserine exposure at the cell surface. Phosphatidylserine-exposing cells are rapidly cleared from circulating blood. The present study thus tested whether sodium aurothiomalate influences the intraerythrocytic parasite development in vitro and the clinical course of murine malaria in vivo. Methods Human erythrocytes were infected with Plasmodium falciparum BinH in vitro and mice were infected (intraperitoneal injection of 1 × 106 parasitized murine erythrocytes) with Plasmodium berghei ANKA in vivo. Results Exposure to aurothiomalate significantly decreased the in vitro parasitemia of P. falciparum-infected human erythrocytes without influencing the intraerythrocytic DNA/RNA content. Administration of sodium aurothiomalate in vivo (daily 10 mg/kg b.w. s.c. from the 8th day of infection) enhanced the percentage of phosphatidylserine-exposing infected and noninfected erythrocytes in blood. All nontreated mice died within 30 days of infection. Aurothiomalate-treatment delayed the lethal course of malaria leading to survival of more than 50% of the mice 30 days after infection. Conclusions Sodium aurothiomalate influences the survival of Plasmodium berghei-infected mice, an effect only partially explained by stimulation of eryptosis.
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Affiliation(s)
- Ioana Alesutan
- Department of Physiology, University of Tübingen, Gmelinstr, 5, 72076 Tübingen, Germany
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Glogowska E, Dyrda A, Cueff A, Bouyer G, Egée S, Bennekou P, Thomas SLY. Anion conductance of the human red cell is carried by a maxi-anion channel. Blood Cells Mol Dis 2010; 44:243-51. [PMID: 20226698 DOI: 10.1016/j.bcmd.2010.02.014] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2010] [Accepted: 01/19/2010] [Indexed: 10/19/2022]
Abstract
Historically, the anion transport through the human red cell membrane has been perceived to be mediated by Band 3, in the two-component concept with the large electroneutral anion exchange accompanied by the conductance proper, which dominated the total membrane conductance. The status of anion channels proper has never been clarified, and the informations obtained by different groups of electrophysiologists are rather badly matched. This study, using the cell-attached configuration of the patch-clamp technique, rationalizes and explains earlier confusing results by demonstrating that the diversity of anionic channel activities recorded in human erythrocytes corresponds to different kinetic modalities of a unique type of maxi-anion channel with multiple conductance levels and probably multiple gating properties and pharmacology, depending on conditions. It demonstrates the role of activator played by serum in the recruitment of multiple new conductance levels showing very complex kinetics and gating properties upon serum addition. These channels, which seem to be dormant under normal physiological conditions, are potentially activable and could confer a far higher anion conductance to the red cell than the ground leak mediated by Band 3.
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Affiliation(s)
- Edyta Glogowska
- Centre National de la Recherche Scientifique, Université Pierre et Marie Curie Paris6, UMR 7150, Station Biologique, B. P. 74, 29682 Roscoff cedex, France
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Kucherenko YV, Mörsdorf D, Lang F. Acid-sensitive outwardly rectifying anion channels in human erythrocytes. J Membr Biol 2009; 230:1-10. [PMID: 19572091 DOI: 10.1007/s00232-009-9179-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2009] [Accepted: 05/22/2009] [Indexed: 12/14/2022]
Abstract
Acid-sensitive outwardly rectifying anion channels (ASOR) have been described in several mammalian cell types. The present whole-cell patch-clamp study elucidated whether those channels are expressed in erythrocytes. To this end whole-cell recordings were made in human erythrocytes from healthy donors treated with low pH and high osmotic pressure. When the pipette solution had a reduced Cl(-) concentration, treatment of the cells with Cl(-)-containing normal and hyperosmotic (addition of sucrose and polyethelene glycol 1000 [PEG-1000] to the Ringer) media with low pH significantly increased the conductance of the cells at positive voltages. Channel activity was highest in the PEG-1000 media (95 and 300 mM PEG-1000, pH 4.5 and 4.3, respectively) where the current-voltage curves demonstrated strong outward rectification and reversed at -40 mV. Substitution of the Cl(-)-containing medium with Cl(-)-free medium resulted in a decrease of the conductance at hyperpolarizing voltages, a shift in reversal potential (to 0 mV) and loss of outward rectification. The chloride currents were inhibited by chloride channels blockers DIDS and NPPB (IC(50) for both was approximately 1 mM) but not with niflumic acid and amiloride. The observations reveal expression of ASOR in erythrocytes.
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Abstract
BACKGROUND According to in vitro observations, gadolinium-containing magnetic resonance (MRT) contrast agents stimulate suicidal cell death or apoptosis. Similar to nucleated cells, erythrocytes may undergo suicidal death or eryptosis, characterized by cell shrinkage and cell membrane scrambling with phosphatidylserine (PS) exposure at the erythrocyte surface. Eryptosis is triggered by increased cytosolic Ca2+-activity. This study explored whether gadolinium-containing MRT contrast agents stimulate eryptosis. MATERIALS AND METHODS Annexin V-binding reflecting PS exposure and forward scatter reflecting cell volume were determined in erythrocytes within freshly drawn blood from patients (8female symbol, 3male symbol, 29-72 years) prior to and 10 min after administration of gadoterate meglumine (0.1 mmol kg(-1) b.w. Dotarem; six patients) or gadobenate dimeglumine (0.05 mmol kg(-1) bw Multi Hance; five patients). In a separate series, eryptosis was determined prior to and following in vitro incubation of erythrocytes from 16 blood donors for 4 h with gadoterate meglumine (5 mM Dotarem) or gadobenate dimeglumine (5 mM Multi Hance). Finally, eryptosis and Fluo3 fluorescence reflecting cytosolic Ca2+ were determined in vitro following exposure to Gd3+. Data were analysed using paired t-test or anova with Tukey's test as post-test. RESULTS The MRT contrast agents such as gadoterate meglumine (Dotarem) and gadobenate dimeglumine (Multi Hance) significantly increased the percentage of eryptotic cells. Moreover, in vitro exposure to gadoterate meglumine (5 mM), gadobenate dimeglumine (5 mM) or Gd3+ (1.9 microM) stimulated eryptosis in vitro. The effect of Gd3+ was paralleled by increase in cytosolic Ca2+-activity. CONCLUSIONS MRT contrast agents may stimulate suicidal erythrocyte death or eryptosis in vitro and in vivo.
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Affiliation(s)
- M Föller
- Department of Physiology, University of Tübingen, Tübingen, Germany
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Qadri SM, Föller M, Lang F. Inhibition of suicidal erythrocyte death by resveratrol. Life Sci 2009; 85:33-8. [PMID: 19409912 DOI: 10.1016/j.lfs.2009.04.015] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2009] [Revised: 04/14/2009] [Accepted: 04/17/2009] [Indexed: 01/04/2023]
Abstract
AIMS Pleiotropic effects of resveratrol include antioxidant activity and inhibition of cyclooxygenase with decrease of PGE(2) formation. In erythrocytes oxidation and PGE(2) activate Ca(2+)-permeable cation channels. The Ca(2+)-entry leads to activation of Ca(2+)-sensitive K(+) channels with subsequent cell shrinkage and cell membrane scrambling with phosphatidylserine exposure at the erythrocyte surface. Cell shrinkage and phosphatidylserine exposure are hallmarks of suicidal erythrocyte death or eryptosis. Eryptotic cells adhere to the vascular wall thus compromising microcirculation and are cleared from circulating blood thus leading to anemia. The present experiments explored whether resveratrol influences eryptosis. MAIN METHODS Erythrocyte phosphatidylserine exposure was identified by annexin V-binding, cell volume estimated from forward scatter and cytosolic Ca(2+) activity determined utilizing Fluo3 fluorescence in FACS analysis. KEY FINDINGS Energy depletion (48 h glucose removal) significantly increased Fluo3 fluorescence and annexin V-binding and decreased forward scatter, effects significantly blunted by resveratrol (>/=5 microM). Moreover, oxidative stress (30 min 0.3 mM tert-butylhydroperoxide) and isoosmotic cell shrinkage (48 h replacement of extracellular chloride by gluconate) similarly triggered eryptosis, effects again significantly blunted in the presence of resveratrol. SIGNIFICANCE Resveratrol is a potent inhibitor of suicidal erythrocyte death during energy depletion, oxidative stress and isoosmotic cell shrinkage. The nutrient could thus counteract anemia and impairment of microcirculation under conditions with excessive eryptosis.
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Affiliation(s)
- Syed M Qadri
- Department of Physiology, Eberhard-Karls-University of Tübingen, Gmelinstrasse 5, Tübingen, Germany
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Huber SM, Lang C, Lang F, Duranton C. Organic osmolyte channels in malaria-infected erythrocytes. Biochem Biophys Res Commun 2008; 376:514-8. [DOI: 10.1016/j.bbrc.2008.09.036] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2008] [Accepted: 09/05/2008] [Indexed: 01/04/2023]
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Akkaya C, Shumilina E, Bobballa D, Brand VB, Mahmud H, Lang F, Huber SM. The Plasmodium falciparum-induced anion channel of human erythrocytes is an ATP-release pathway. Pflugers Arch 2008; 457:1035-47. [PMID: 18696103 DOI: 10.1007/s00424-008-0572-8] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2008] [Accepted: 07/31/2008] [Indexed: 01/25/2023]
Abstract
Infection with the malaria parasite Plasmodium falciparum induces osmolyte and anion channels in the host erythrocyte membrane involving ATP release and autocrine purinergic signaling. P. falciparum-parasitized but not unstimulated uninfected erythrocytes released ATP in a 5-nitro-2-(3-phenylpropylamino)-benzoic acid (NPPB; 7 microM)-sensitive and serum album (SA; 0.5% w/v)-stimulated manner. Since Plasmodium infection of human erythrocytes induces SA-dependent outwardly (OR) and SA-independent inwardly rectifying (IR) anion conductances, we tested whether the infection-induced OR channels directly generate an ATP release pathway. P. falciparum-parasitized erythrocytes were recorded in whole-cell mode with either Cl(-) or ATP as the only anion in the bath or pipette. In parasitized cells with predominant OR activity, replacement of bath NaCl by Na-ATP (NMDG-Cl pipette solution) shifted the current reversal potential (V (rev)) from -2 +/- 1 to +51 +/- 3 mV (n = 15). In cells with predominant IR activity, in contrast, the same maneuver induced a shift of V (rev) to significantly larger (p < or = 0.05, two-tailed t test) values (from -3 +/- 1 to +66 +/- 8 mV; n = 5) and an almost complete inhibition of outward current. The anion channel blocker NPPB reversibly decreased the ATP-generated OR currents from 1.1 +/- 0.1 nS to 0.2 +/- 0.05 nS and further shifted V (rev) to +87 +/- 7 mV (n = 12). The NPPB-sensitive fraction of the OR reversed at +48 +/- 4 mV suggesting a relative permeability of P (ATP)/P (Cl) approximately 0.01. Together, these data raise the possibility that the OR might be the electrophysiological correlate of an erythrocyte ATP release pathway.
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Affiliation(s)
- Canan Akkaya
- Department of Physiology, University of Tübingen, Germany
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