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Azevedo A, Coelho MP, Pinho JO, Soares PIP, Reis CP, Borges JP, Gaspar MM. An alternative hybrid lipid nanosystem combining cytotoxic and magnetic properties as a tool to potentiate antitumor effect of 5-fluorouracil. Life Sci 2024; 344:122558. [PMID: 38471621 DOI: 10.1016/j.lfs.2024.122558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2024] [Revised: 02/28/2024] [Accepted: 03/08/2024] [Indexed: 03/14/2024]
Abstract
AIMS Colorectal cancer is the third most frequent type of cancer and the second leading cause of cancer-related deaths worldwide. The majority of cases are diagnosed at a later stage, leading to the need for more aggressive treatments such as chemotherapy. 5-Fluorouracil (5-FU), known for its high cytotoxic properties has emerged as a chemotherapeutic agent. However, it presents several drawbacks such as lack of specificity and short half-life. To reduce these drawbacks, several strategies have been designed namely chemical modification or association to drug delivery systems. MATERIALS AND METHODS Current research was focused on the design, physicochemical characterization and in vitro evaluation of a lipid-based system loaded with 5-FU. Furthermore, aiming to maximize preferential targeting and release at tumour sites, a hybrid lipid-based system, combining both therapeutic and magnetic properties was developed and validated. For this purpose, liposomes co-loaded with 5-FU and iron oxide (II, III) nanoparticles were accomplished. KEY FINDINGS The characterization of the developed nanoformulation was performed in terms of incorporation parameters, mean size and surface charge. In vitro studies assessed in a murine colon cancer cell line confirmed that 5-FU antiproliferative activity was preserved after incorporation in liposomes. In same model, iron oxide (II, III) nanoparticles did not exhibit cytotoxic properties. Additionally, the presence of these nanoparticles was shown to confer magnetic properties to the liposomes, allowing them to respond to external magnetic fields. SIGNIFICANCE Overall, a lipid nanosystem loading a chemotherapeutic agent displaying magnetic characteristics was successfully designed and physicochemically characterized, for further in vivo applications.
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Affiliation(s)
- Afonso Azevedo
- i3N/CENIMAT, Department of Materials Science, NOVA School of Science and Technology, NOVA University Lisbon, Campus de Caparica, 2829-516 Caparica, Portugal
| | - Mariana P Coelho
- Research Institute for Medicines, iMed.ULisboa, Faculty of Pharmacy, Universidade de Lisboa, Lisboa, Portugal
| | - Jacinta O Pinho
- Research Institute for Medicines, iMed.ULisboa, Faculty of Pharmacy, Universidade de Lisboa, Lisboa, Portugal
| | - Paula I P Soares
- i3N/CENIMAT, Department of Materials Science, NOVA School of Science and Technology, NOVA University Lisbon, Campus de Caparica, 2829-516 Caparica, Portugal
| | - Catarina P Reis
- Research Institute for Medicines, iMed.ULisboa, Faculty of Pharmacy, Universidade de Lisboa, Lisboa, Portugal; IBEB, Institute of Biophysics and Biomedical Engineering, Faculty of Sciences, Universidade de Lisboa, Lisboa, Portugal
| | - João P Borges
- i3N/CENIMAT, Department of Materials Science, NOVA School of Science and Technology, NOVA University Lisbon, Campus de Caparica, 2829-516 Caparica, Portugal
| | - M Manuela Gaspar
- Research Institute for Medicines, iMed.ULisboa, Faculty of Pharmacy, Universidade de Lisboa, Lisboa, Portugal; IBEB, Institute of Biophysics and Biomedical Engineering, Faculty of Sciences, Universidade de Lisboa, Lisboa, Portugal.
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2
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Li M, Bosman EDC, Smith OM, Lintern N, de Klerk DJ, Sun H, Cheng S, Pan W, Storm G, Khaled YS, Heger M. Comparative analysis of whole cell-derived vesicular delivery systems for photodynamic therapy of extrahepatic cholangiocarcinoma. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY. B, BIOLOGY 2024; 254:112903. [PMID: 38608335 DOI: 10.1016/j.jphotobiol.2024.112903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Revised: 03/26/2024] [Accepted: 04/01/2024] [Indexed: 04/14/2024]
Abstract
This first-in-its-class proof-of-concept study explored the use of bionanovesicles for the delivery of photosensitizer into cultured cholangiocarcinoma cells and subsequent treatment by photodynamic therapy (PDT). Two types of bionanovesicles were prepared: cellular vesicles (CVs) were fabricated by sonication-mediated nanosizing of cholangiocarcinoma (TFK-1) cells, whereas cell membrane vesicles (CMVs) were produced by TFK-1 cell and organelle membrane isolation and subsequent nanovesicularization by sonication. The bionanovesicles were loaded with zinc phthalocyanine (ZnPC). The CVs and CMVs were characterized (size, polydispersity index, zeta potential, stability, ZnPC encapsulation efficiency, spectral properties) and assayed for tumor (TFK-1) cell association and uptake (flow cytometry, confocal microscopy), intracellular ZnPC distribution (confocal microscopy), dark toxicity (MTS assay), and PDT efficacy (MTS assay). The mean ± SD diameter, polydispersity index, and zeta potential were 134 ± 1 nm, -16.1 ± 0.9, and 0.220 ± 0.013, respectively, for CVs and 172 ± 3 nm, -16.4 ± 1.1, and 0.167 ± 0.022, respectively, for CMVs. Cold storage for 1 wk and incorporation of ZnPC increased bionanovesicular diameter slightly but size remained within the recommended range for in vivo application (136-220 nm). ZnPC was incorporated into CVs and CMVs at an optimal photosensitizer:lipid molar ratio of 0.006 and 0.01, respectively. Both bionanovesicles were avidly taken up by TFK-1 cells, resulting in homogenous intracellular ZnPC dispersion. Photosensitization of TFK-1 cells did not cause dark toxicity, while illumination at 671 nm (35.3 J/cm2) produced LC50 values of 1.11 μM (CVs) and 0.51 μM (CMVs) at 24 h post-PDT, which is superior to most LC50 values generated in tumor cells photosensitized with liposomal ZnPC. In conclusion, CVs and CMVs constitute a potent photosensitizer platform with no inherent cytotoxicity and high PDT efficacy in vitro.
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Affiliation(s)
- Mingjuan Li
- Jiaxing Key Laboratory for Photonanomedicine and Experimental Therapeutics, Department of Pharmaceutics, College of Medicine, Jiaxing University, 314001 Jiaxing, Zhejiang, PR China; Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, 3584 CS Utrecht, the Netherlands.
| | - Esmeralda D C Bosman
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, 3584 CS Utrecht, the Netherlands.
| | - Olivia M Smith
- Leeds Institute of Medical Research, St. James's University Hospital, Leeds LS9 7TF, United Kingdom; The University of Leeds, School of Medicine, Leeds LS2 9JT, United Kingdom
| | - Nicole Lintern
- Leeds Institute of Medical Research, St. James's University Hospital, Leeds LS9 7TF, United Kingdom; The University of Leeds, School of Medicine, Leeds LS2 9JT, United Kingdom.
| | - Daniel J de Klerk
- Jiaxing Key Laboratory for Photonanomedicine and Experimental Therapeutics, Department of Pharmaceutics, College of Medicine, Jiaxing University, 314001 Jiaxing, Zhejiang, PR China
| | - Hong Sun
- Key Laboratory of Medical Electronics and Digital Health of Zhejiang Province, Jiaxing University, 314001 Jiaxing, Zhejiang, PR China; Engineering Research Center of Intelligent Human Health Situation Awareness of Zhejiang Province, Jiaxing University, 314001 Jiaxing, Zhejiang, PR China.
| | - Shuqun Cheng
- Department of Hepatic Surgery VI, The Eastern Hepatobiliary Surgery Hospital, The Second Military Medical University, 200433 Shanghai, PR China
| | - Weiwei Pan
- Department of Cell Biology, College of Medicine, Jiaxing University, 314001 Jiaxing, Zhejiang, PR China
| | - Gert Storm
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, 3584 CS Utrecht, the Netherlands.
| | - Yazan S Khaled
- Leeds Institute of Medical Research, St. James's University Hospital, Leeds LS9 7TF, United Kingdom; The University of Leeds, School of Medicine, Leeds LS2 9JT, United Kingdom.
| | - Michal Heger
- Jiaxing Key Laboratory for Photonanomedicine and Experimental Therapeutics, Department of Pharmaceutics, College of Medicine, Jiaxing University, 314001 Jiaxing, Zhejiang, PR China; Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, 3584 CS Utrecht, the Netherlands; Membrane Biochemistry and Biophysics, Department of Chemistry, Faculty of Science, Utrecht University, 3584 CS Utrecht, the Netherlands.
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3
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Duman G, Gucu E, Utku FS, Uner B, Macit M, Sarialtin S, Ozilgen M. Kinetic assessment of iontophoretic delivery efficiency of niosomal tetracycline hydrochloride incorporated in electroconductive gel. Drug Deliv Transl Res 2024; 14:1206-1217. [PMID: 37867180 DOI: 10.1007/s13346-023-01452-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/12/2023] [Indexed: 10/24/2023]
Abstract
The purpose of this study was to conduct the kinetic assessment of iontophoretic delivery of niosomal tetracycline-HCl formulated in an electroconductive gel. Tween-80 and Span-80 were used to obtain tetracycline-HCl niosomes with an average diameter of 101.9 ± 3.3 nm, a polydispersity index of 0.247 ± 0.004, a zeta potential of - 34.1 mV, and an entrapment efficiency of 70.08 ± 0.16%. Four different gel preparations, two of which contained niosomal tetracycline-HCl, were transdermally delivered using Franz diffusion cells under the trigger effect of iontophoresis, applied at 0.2, 0.5, and 1 mA/cm2 current density. The control group was the passive diffusion results of the preparation made using a tetracycline-HCl-based drug marketed in Turkey. The control group was compared with the groups that contained (a) tetracycline-HCl in an electroconductive gel, (b) the niosomal tetracycline-HCl formulation in water, and (c) the niosomal tetracycline-HCl formulation in the electroconductive gel. The group with the niosomal formulation in the electroconductive gel displayed the highest increase in iontophoretic transdermal delivery relative to the control group, displaying a 2-, 2.1-, and 2.2-fold increase, respectively, by current density. The experimental results of transdermal delivery using the synergistic effect of niosomal formulation in electroconductive gel and the trigger effect of iontophoresis appeared to divert slightly from zero-order kinetics, demonstrating a statistically significant increase in the rate of controlled transdermal drug delivery. Considering that about 20% of the formulation is transdermally delivered in the first half-hour, the iontophoretic transdermal delivery of niosomal tetracycline-HCl can be efficiently used in local iontophoretic therapy.
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Affiliation(s)
- Gulengul Duman
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Yeditepe University, Istanbul, Turkey
| | - Ecem Gucu
- Department of Biomedical Engineering, Yeditepe University, Istanbul, Turkey
| | - Feride Sermin Utku
- Department of Biomedical Engineering, Yeditepe University, Istanbul, Turkey
| | - Burcu Uner
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Yeditepe University, Istanbul, Turkey.
- Department of Pharmaceutical and Administrative Sciences, Faculty of Pharmacy, University of Health Science and Pharmacy in St. Louis, St. Louis, MO, USA.
| | - Meltem Macit
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Yeditepe University, Istanbul, Turkey
| | - Sevval Sarialtin
- Department of Biomedical Engineering, Yeditepe University, Istanbul, Turkey
| | - Mustafa Ozilgen
- Department of Food Engineering, Faculty of Engineering, Yeditepe University, Istanbul, Turkey
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4
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Maniscalchi A, Benzi Juncos ON, Conde MA, Funk MI, Fermento ME, Facchinetti MM, Curino AC, Uranga RM, Alza NP, Salvador GA. New insights on neurodegeneration triggered by iron accumulation: Intersections with neutral lipid metabolism, ferroptosis, and motor impairment. Redox Biol 2024; 71:103074. [PMID: 38367511 PMCID: PMC10879836 DOI: 10.1016/j.redox.2024.103074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 12/28/2023] [Accepted: 02/03/2024] [Indexed: 02/19/2024] Open
Abstract
Brain iron accumulation constitutes a pathognomonic indicator in several neurodegenerative disorders. Metal accumulation associated with dopaminergic neuronal death has been documented in Parkinson's disease. Through the use of in vivo and in vitro models, we demonstrated that lipid dysregulation manifests as a neuronal and glial response during iron overload. In this study, we show that cholesterol content and triacylglycerol (TAG) hydrolysis were strongly elevated in mice midbrain. Lipid cacostasis was concomitant with the loss of dopaminergic neurons, astrogliosis and elevated expression of α-synuclein. Exacerbated lipid peroxidation and markers of ferroptosis were evident in the midbrain from mice challenged with iron overload. An imbalance in the activity of lipolytic and acylation enzymes was identified, favoring neutral lipid hydrolysis, and consequently reducing TAG and cholesteryl ester levels. Notably, these observed alterations were accompanied by motor impairment in iron-treated mice. In addition, neuronal and glial cultures along with their secretomes were used to gain further insight into the mechanism underlying TAG hydrolysis and cholesterol accumulation as cellular responses to iron accumulation. We demonstrated that TAG hydrolysis in neurons is triggered by astrocyte secretomes. Moreover, we found that the ferroptosis inhibitor, ferrostatin-1, effectively prevents cholesterol accumulation both in neurons and astrocytes. Taken together, these results indicate that lipid disturbances occur in iron-overloaded mice as a consequence of iron-induced oxidative stress and depend on neuron-glia crosstalk. Our findings suggest that developing therapies aimed at restoring lipid homeostasis may lead to specific treatment for neurodegeneration associated with ferroptosis and brain iron accumulation.
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Affiliation(s)
- Athina Maniscalchi
- Instituto de Investigaciones Bioquímicas de Bahía Blanca (INIBIBB), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Camino La Carrindanga Km7 B8000FWB, Bahía Blanca, Argentina
| | - Oriana N Benzi Juncos
- Instituto de Investigaciones Bioquímicas de Bahía Blanca (INIBIBB), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Camino La Carrindanga Km7 B8000FWB, Bahía Blanca, Argentina; Departamento de Biología, Bioquímica y Farmacia, Universidad Nacional del Sur (UNS), Bahía Blanca, Argentina
| | - Melisa A Conde
- Instituto de Investigaciones Bioquímicas de Bahía Blanca (INIBIBB), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Camino La Carrindanga Km7 B8000FWB, Bahía Blanca, Argentina; Departamento de Biología, Bioquímica y Farmacia, Universidad Nacional del Sur (UNS), Bahía Blanca, Argentina
| | - Melania I Funk
- Instituto de Investigaciones Bioquímicas de Bahía Blanca (INIBIBB), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Camino La Carrindanga Km7 B8000FWB, Bahía Blanca, Argentina
| | - María E Fermento
- Instituto de Investigaciones Bioquímicas de Bahía Blanca (INIBIBB), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Camino La Carrindanga Km7 B8000FWB, Bahía Blanca, Argentina; Departamento de Biología, Bioquímica y Farmacia, Universidad Nacional del Sur (UNS), Bahía Blanca, Argentina
| | - María M Facchinetti
- Instituto de Investigaciones Bioquímicas de Bahía Blanca (INIBIBB), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Camino La Carrindanga Km7 B8000FWB, Bahía Blanca, Argentina; Departamento de Biología, Bioquímica y Farmacia, Universidad Nacional del Sur (UNS), Bahía Blanca, Argentina
| | - Alejandro C Curino
- Instituto de Investigaciones Bioquímicas de Bahía Blanca (INIBIBB), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Camino La Carrindanga Km7 B8000FWB, Bahía Blanca, Argentina; Departamento de Biología, Bioquímica y Farmacia, Universidad Nacional del Sur (UNS), Bahía Blanca, Argentina
| | - Romina M Uranga
- Instituto de Investigaciones Bioquímicas de Bahía Blanca (INIBIBB), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Camino La Carrindanga Km7 B8000FWB, Bahía Blanca, Argentina; Departamento de Biología, Bioquímica y Farmacia, Universidad Nacional del Sur (UNS), Bahía Blanca, Argentina
| | - Natalia P Alza
- Instituto de Investigaciones Bioquímicas de Bahía Blanca (INIBIBB), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Camino La Carrindanga Km7 B8000FWB, Bahía Blanca, Argentina; Departamento de Química - UNS, Bahía Blanca, Argentina
| | - Gabriela A Salvador
- Instituto de Investigaciones Bioquímicas de Bahía Blanca (INIBIBB), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Camino La Carrindanga Km7 B8000FWB, Bahía Blanca, Argentina; Departamento de Biología, Bioquímica y Farmacia, Universidad Nacional del Sur (UNS), Bahía Blanca, Argentina.
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5
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de Haas AM, Stolk DA, Schetters STT, Goossens-Kruijssen L, Keuning E, Ambrosini M, Boon L, Kalay H, Storm G, van der Vliet HJ, de Gruijl TD, van Kooyk Y. Vaccination with DC-SIGN-Targeting αGC Liposomes Leads to Tumor Control, Irrespective of Suboptimally Activated T-Cells. Pharmaceutics 2024; 16:581. [PMID: 38794243 PMCID: PMC11124829 DOI: 10.3390/pharmaceutics16050581] [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: 03/19/2024] [Revised: 04/07/2024] [Accepted: 04/15/2024] [Indexed: 05/26/2024] Open
Abstract
Cancer vaccines have emerged as a potent strategy to improve cancer immunity, with or without the combination of checkpoint blockade. In our investigation, liposomal formulations containing synthetic long peptides and α-Galactosylceramide, along with a DC-SIGN-targeting ligand, Lewis Y (LeY), were studied for their anti-tumor potential. The formulated liposomes boosted with anti-CD40 adjuvant demonstrated robust invariant natural killer (iNKT), CD4+, and CD8+ T-cell activation in vivo. The incorporation of LeY facilitated the targeting of antigen-presenting cells expressing DC-SIGN in vitro and in vivo. Surprisingly, mice vaccinated with LeY-modified liposomes exhibited comparable tumor reduction and survival rates to those treated with untargeted counterparts despite a decrease in antigen-specific CD8+ T-cell responses. These results suggest that impaired induction of antigen-specific CD8+ T-cells via DC-SIGN targeting does not compromise anti-tumor potential, hinting at alternative immune activation routes beyond CD8+ T-cell activation.
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Affiliation(s)
- Aram M. de Haas
- Department of Molecular Cell Biology and Immunology, Amsterdam UMC, Cancer Center Amsterdam, Amsterdam Institute for Infection and Immunity, Vrije Universiteit Amsterdam, 1081 HV Amsterdam, The Netherlands
| | - Dorian A. Stolk
- Department of Molecular Cell Biology and Immunology, Amsterdam UMC, Cancer Center Amsterdam, Amsterdam Institute for Infection and Immunity, Vrije Universiteit Amsterdam, 1081 HV Amsterdam, The Netherlands
- Department of Medical Oncology, Amsterdam UMC, Cancer Center Amsterdam, Amsterdam Institute for Infection and Immunity, Vrije Universiteit Amsterdam, 1081 HV Amsterdam, The Netherlands
| | - Sjoerd T. T. Schetters
- Department of Molecular Cell Biology and Immunology, Amsterdam UMC, Cancer Center Amsterdam, Amsterdam Institute for Infection and Immunity, Vrije Universiteit Amsterdam, 1081 HV Amsterdam, The Netherlands
| | - Laura Goossens-Kruijssen
- Department of Molecular Cell Biology and Immunology, Amsterdam UMC, Cancer Center Amsterdam, Amsterdam Institute for Infection and Immunity, Vrije Universiteit Amsterdam, 1081 HV Amsterdam, The Netherlands
| | - Eelco Keuning
- Department of Molecular Cell Biology and Immunology, Amsterdam UMC, Cancer Center Amsterdam, Amsterdam Institute for Infection and Immunity, Vrije Universiteit Amsterdam, 1081 HV Amsterdam, The Netherlands
| | - Martino Ambrosini
- Department of Molecular Cell Biology and Immunology, Amsterdam UMC, Cancer Center Amsterdam, Amsterdam Institute for Infection and Immunity, Vrije Universiteit Amsterdam, 1081 HV Amsterdam, The Netherlands
- LIPOSOMA BV, Meerpaalweg 5, 1332 BB Almere, The Netherlands
| | | | - Hakan Kalay
- Department of Molecular Cell Biology and Immunology, Amsterdam UMC, Cancer Center Amsterdam, Amsterdam Institute for Infection and Immunity, Vrije Universiteit Amsterdam, 1081 HV Amsterdam, The Netherlands
| | - Gert Storm
- LIPOSOMA BV, Meerpaalweg 5, 1332 BB Almere, The Netherlands
- Department of Biomaterials Science and Technology, University of Twente, 7500 AE Enschede, The Netherlands
- Department of Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228, Singapore
| | - Hans J. van der Vliet
- Department of Medical Oncology, Amsterdam UMC, Cancer Center Amsterdam, Amsterdam Institute for Infection and Immunity, Vrije Universiteit Amsterdam, 1081 HV Amsterdam, The Netherlands
- LAVA Therapeutics, 3584 CM Utrecht, The Netherlands
| | - Tanja D. de Gruijl
- Department of Medical Oncology, Amsterdam UMC, Cancer Center Amsterdam, Amsterdam Institute for Infection and Immunity, Vrije Universiteit Amsterdam, 1081 HV Amsterdam, The Netherlands
| | - Yvette van Kooyk
- Department of Molecular Cell Biology and Immunology, Amsterdam UMC, Cancer Center Amsterdam, Amsterdam Institute for Infection and Immunity, Vrije Universiteit Amsterdam, 1081 HV Amsterdam, The Netherlands
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Pinho JO, Ferreira M, Coelho M, Pinto SN, Aguiar SI, Gaspar MM. Liposomal Rifabutin-A Promising Antibiotic Repurposing Strategy against Methicillin-Resistant Staphylococcus aureus Infections. Pharmaceuticals (Basel) 2024; 17:470. [PMID: 38675432 PMCID: PMC11053623 DOI: 10.3390/ph17040470] [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: 02/16/2024] [Revised: 03/23/2024] [Accepted: 04/04/2024] [Indexed: 04/28/2024] Open
Abstract
Methicillin-resistant Staphylococcus aureus (M RSA) infections, in particular biofilm-organized bacteria, remain a clinical challenge and a serious health problem. Rifabutin (RFB), an antibiotic of the rifamycins class, has shown in previous work excellent anti-staphylococcal activity. Here, we proposed to load RFB in liposomes aiming to promote the accumulation of RFB at infected sites and consequently enhance the therapeutic potency. Two clinical isolates of MRSA, MRSA-C1 and MRSA-C2, were used to test the developed formulations, as well as the positive control, vancomycin (VCM). RFB in free and liposomal forms displayed high antibacterial activity, with similar potency between tested formulations. In MRSA-C1, minimal inhibitory concentrations (MIC) for Free RFB and liposomal RFB were 0.009 and 0.013 μg/mL, respectively. Minimum biofilm inhibitory concentrations able to inhibit 50% biofilm growth (MBIC50) for Free RFB and liposomal RFB against MRSA-C1 were 0.012 and 0.008 μg/mL, respectively. Confocal microscopy studies demonstrated the rapid internalization of unloaded and RFB-loaded liposomes in the bacterial biofilm matrix. In murine models of systemic MRSA-C1 infection, Balb/c mice were treated with RFB formulations and VCM at 20 and 40 mg/kg of body weight, respectively. The in vivo results demonstrated a significant reduction in bacterial burden and growth index in major organs of mice treated with RFB formulations, as compared to Control and VCM (positive control) groups. Furthermore, the VCM therapeutic dose was two fold higher than the one used for RFB formulations, reinforcing the therapeutic potency of the proposed strategy. In addition, RFB formulations were the only formulations associated with 100% survival. Globally, this study emphasizes the potential of RFB nanoformulations as an effective and safe approach against MRSA infections.
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Affiliation(s)
- Jacinta O. Pinho
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal; (J.O.P.); (M.F.); (M.C.)
| | - Magda Ferreira
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal; (J.O.P.); (M.F.); (M.C.)
- Center for Interdisciplinary Research in Animal Health (CIISA), Faculty of Veterinary Medicine, Universidade de Lisboa, 1300-477 Lisboa, Portugal;
- Associate Laboratory for Animal and Veterinary Sciences (AL4AnimalS), Faculty of Veterinary Medicine, Universidade de Lisboa, 1300-477 Lisboa, Portugal
| | - Mariana Coelho
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal; (J.O.P.); (M.F.); (M.C.)
| | - Sandra N. Pinto
- iBB-Institute for Bioengineering and Biosciences and Associate Laboratory i4HB−Institute for Health and Bioeconomy at Department of Bioengineering, Instituto SuperiorTécnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal;
| | - Sandra I. Aguiar
- Center for Interdisciplinary Research in Animal Health (CIISA), Faculty of Veterinary Medicine, Universidade de Lisboa, 1300-477 Lisboa, Portugal;
| | - Maria Manuela Gaspar
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal; (J.O.P.); (M.F.); (M.C.)
- IBEB, Institute of Biophysics and Biomedical Engineering, Faculty of Sciences, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal
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7
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Reinhard J, Starke L, Klose C, Haberkant P, Hammarén H, Stein F, Klein O, Berhorst C, Stumpf H, Sáenz JP, Hub J, Schuldiner M, Ernst R. MemPrep, a new technology for isolating organellar membranes provides fingerprints of lipid bilayer stress. EMBO J 2024; 43:1653-1685. [PMID: 38491296 PMCID: PMC11021466 DOI: 10.1038/s44318-024-00063-y] [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: 09/14/2022] [Revised: 02/16/2024] [Accepted: 02/26/2024] [Indexed: 03/18/2024] Open
Abstract
Biological membranes have a stunning ability to adapt their composition in response to physiological stress and metabolic challenges. Little is known how such perturbations affect individual organelles in eukaryotic cells. Pioneering work has provided insights into the subcellular distribution of lipids in the yeast Saccharomyces cerevisiae, but the composition of the endoplasmic reticulum (ER) membrane, which also crucially regulates lipid metabolism and the unfolded protein response, remains insufficiently characterized. Here, we describe a method for purifying organelle membranes from yeast, MemPrep. We demonstrate the purity of our ER membrane preparations by proteomics, and document the general utility of MemPrep by isolating vacuolar membranes. Quantitative lipidomics establishes the lipid composition of the ER and the vacuolar membrane. Our findings provide a baseline for studying membrane protein biogenesis and have important implications for understanding the role of lipids in regulating the unfolded protein response (UPR). The combined preparative and analytical MemPrep approach uncovers dynamic remodeling of ER membranes in stressed cells and establishes distinct molecular fingerprints of lipid bilayer stress.
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Affiliation(s)
- John Reinhard
- Saarland University, Medical Biochemistry and Molecular Biology, Homburg, Germany
- Saarland University, Preclinical Center for Molecular Signaling (PZMS), Homburg, Germany
| | - Leonhard Starke
- Saarland University, Theoretical Physics and Center for Biophysics, Saarbrücken, Germany
| | | | - Per Haberkant
- EMBL Heidelberg, Proteomics Core Facility, Heidelberg, Germany
| | | | - Frank Stein
- EMBL Heidelberg, Proteomics Core Facility, Heidelberg, Germany
| | - Ofir Klein
- Weizmann Institute of Science, Department of Molecular Genetics, Rehovot, Israel
| | - Charlotte Berhorst
- Saarland University, Medical Biochemistry and Molecular Biology, Homburg, Germany
- Saarland University, Preclinical Center for Molecular Signaling (PZMS), Homburg, Germany
| | - Heike Stumpf
- Saarland University, Medical Biochemistry and Molecular Biology, Homburg, Germany
- Saarland University, Preclinical Center for Molecular Signaling (PZMS), Homburg, Germany
| | - James P Sáenz
- Technische Universität Dresden, B CUBE, Dresden, Germany
| | - Jochen Hub
- Saarland University, Theoretical Physics and Center for Biophysics, Saarbrücken, Germany
| | - Maya Schuldiner
- Weizmann Institute of Science, Department of Molecular Genetics, Rehovot, Israel
| | - Robert Ernst
- Saarland University, Medical Biochemistry and Molecular Biology, Homburg, Germany.
- Saarland University, Preclinical Center for Molecular Signaling (PZMS), Homburg, Germany.
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8
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Martínez-Navarrete M, Guillot AJ, Lobita MC, Recio MC, Giner R, Aparicio-Blanco J, Montesinos MC, Santos HA, Melero A. Cyclosporin A-loaded dissolving microneedles for dermatitis therapy: Development, characterisation and efficacy in a delayed-type hypersensitivity in vivo model. Drug Deliv Transl Res 2024:10.1007/s13346-024-01542-9. [PMID: 38472726 DOI: 10.1007/s13346-024-01542-9] [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] [Accepted: 02/07/2024] [Indexed: 03/14/2024]
Abstract
Several drugs can be used for treating inflammatory skin pathologies like dermatitis and psoriasis. However, for the management of chronic and long-term cases, topical administration is preferred over oral delivery since it prevents certain issues due to systemic side effects from occurring. Cyclosporin A (CsA) has been used for this purpose; however, its high molecular weight (1202 Da) restricts the diffusion through the skin structure. Here, we developed a nano-in-micro device combining lipid vesicles (LVs) and dissolving microneedle array patches (DMAPs) for targeted skin delivery. CsA-LVs allowed the effective incorporation of CsA in the hydrophilic DMAP matrix despite the hydrophobicity of the drug. Polymeric matrix composed of poly (vinyl alcohol) (5% w/v), poly (vinyl pyrrolidine) (15% w/v) and CsA-LV dispersion (10% v/v) led to the formation of CsA-LVs@DMAPs with adequate mechanical properties to penetrate the stratum corneum barrier. The safety and biocompatibility were ensured in an in vitro viability test using HaCaT keratinocytes and L929 fibroblast cell lines. Ex vivo permeability studies in a Franz-diffusion cell setup showed effective drug retention in the skin structure. Finally, CsA-LVs@DMAPs were challenged in an in vivo murine model of delayed-type hypersensitivity to corroborate their potential to ameliorate skin inflammatory conditions. Different findings like photon emission reduction in bioluminescence study, normalisation of histological damage and decrease of inflammatory cytokines point out the effectivity of CsA-LVs@DMAPs to treat these conditions. Overall, our study demonstrates that CsA-LVs@DMAPs can downregulate the skin inflammatory environment which paves the way for their clinical translation and their use as an alternative to corticosteroid-based therapies.
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Affiliation(s)
- Miquel Martínez-Navarrete
- Department of Pharmacy and Pharmaceutical Technology and Parasitology, University of Valencia, Ave. Vicent Andrés Estellés s/n, 46100, Burjassot, Valencia, Spain
| | - Antonio José Guillot
- Department of Pharmacy and Pharmaceutical Technology and Parasitology, University of Valencia, Ave. Vicent Andrés Estellés s/n, 46100, Burjassot, Valencia, Spain.
- Department of Biomaterials and Biomedical Technology, University Medical Center Groningen, University of Groningen, Ant. Deusinglaan 1, 9713 AV, Groningen, The Netherlands.
| | - Maria C Lobita
- Department of Biomaterials and Biomedical Technology, University Medical Center Groningen, University of Groningen, Ant. Deusinglaan 1, 9713 AV, Groningen, The Netherlands
| | - María Carmen Recio
- Department of Pharmacology, University of Valencia, Ave. Vicent Andrés Estellés s/n, 46100, Burjassot, Valencia, Spain
| | - Rosa Giner
- Department of Pharmacology, University of Valencia, Ave. Vicent Andrés Estellés s/n, 46100, Burjassot, Valencia, Spain
| | - Juan Aparicio-Blanco
- Department of Pharmaceutics and Food Technology, Faculty of Pharmacy, Complutense University of Madrid, Plaza Ramón y Cajal s/n, 28040, Madrid, Spain
| | - María Carmen Montesinos
- Department of Pharmacology, University of Valencia, Ave. Vicent Andrés Estellés s/n, 46100, Burjassot, Valencia, Spain
- Interuniversity Research Institute for Molecular Recognition and Technological Development (IDM), University of Valencia, Polytechnic University of Valencia, Valencia, Spain
| | - Hélder A Santos
- Department of Biomaterials and Biomedical Technology, University Medical Center Groningen, University of Groningen, Ant. Deusinglaan 1, 9713 AV, Groningen, The Netherlands
- Drug Research Program, Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, FI-00014, Helsinki, Finland
| | - Ana Melero
- Department of Pharmacy and Pharmaceutical Technology and Parasitology, University of Valencia, Ave. Vicent Andrés Estellés s/n, 46100, Burjassot, Valencia, Spain
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9
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Bento-Oliveira A, Starosta R, de Almeida RFM. Interaction of the antifungal ketoconazole and its diphenylphosphine derivatives with lipid bilayers: Insights into their antifungal action. Arch Biochem Biophys 2024; 753:109919. [PMID: 38307316 DOI: 10.1016/j.abb.2024.109919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 01/25/2024] [Accepted: 01/30/2024] [Indexed: 02/04/2024]
Abstract
Ketoconazole (Ke) is an important antifungal drug, and two of its diphenylphosphinemethyl derivatives (KeP: Ph2PCH2-Ke and KeOP: Ph2P(O)CH2-Ke) have shown improved antifungal activity, namely against a yeast strain lacking ergosterol, suggesting alternative modes of action for azole compounds. In this context, the interactions of these compounds with a model of the cell membrane were investigated, using POPC (1-palmitoyl-2-oleoyl-sn-glycero-3-phosphocholine) large unilamellar vesicles and taking advantage of the intrinsic fluorescence of Ke, KeP and KeOP. Steady-state fluorescence spectra and anisotropy, including partition and aggregation studies, as well as fluorescence lifetime measurements, were carried out. In addition, the ability of the compounds to increase membrane permeability was assessed through carboxyfluorescein leakage. The membrane/water mole fraction partition coefficients (Kp,x): (3.31 ± 0.36) x105, (8.31 ± 1.60) x105 and (4.66 ± 0.72) x106, for Ke, KeP and KeOP, respectively, show that all three compounds have moderate to high affinity for the lipid bilayer. Moreover, KeP, and particularly KeOP interact more efficiently with POPC bilayers than Ke, which correlates well with their in vitro antifungal activity. Furthermore, although the three compounds disturb the lipid bilayer, KeOP is the quickest and most efficient one. Hence, the higher affinity and ability to permeabilize the membrane of KeOP when compared to that of KeP, despite the higher lipophilicity of the latter, points to an important role of Ph2P(O)CH2- oxygen. Overall, this work suggests that membrane interactions are important for the antifungal activity of these azoles and should be considered in the design of new therapeutic agents.
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Affiliation(s)
- Andreia Bento-Oliveira
- Centro de Química Estrutural, Institute of Molecular Sciences, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016, Lisboa, Portugal
| | - Radosław Starosta
- Centro de Química Estrutural, Institute of Molecular Sciences, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016, Lisboa, Portugal; Faculty of Chemistry, University of Wroclaw, F. Joliot-Curie 14, 50-383, Wroclaw, Poland
| | - Rodrigo F M de Almeida
- Centro de Química Estrutural, Institute of Molecular Sciences, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016, Lisboa, Portugal.
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10
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Wang X, Xu Y, Martin NI, Breukink E. The enigmatic mode of action of the lantibiotic epilancin 15X. BIOCHIMICA ET BIOPHYSICA ACTA. BIOMEMBRANES 2024; 1866:184282. [PMID: 38218577 DOI: 10.1016/j.bbamem.2024.184282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 12/21/2023] [Accepted: 01/04/2024] [Indexed: 01/15/2024]
Abstract
Epilancin 15X is a lantibiotic that has an antimicrobial activity in the nanomolar concentration range towards Staphylococcus simulans. Such low MICs usually imply that these peptides employ a mechanism of action (MoA) involving high affinity targets. Here we studied this MoA by using epilancin 15X's ability to dissipate the membrane potential of intact S. simulans cells. These membrane depolarization assays showed that treatment of the bacteria by antibiotics known to affect the bacterial cell wall synthesis pathway decreased the membrane depolarization effects of epilancin 15X. Disruption of the Lipid II cycle in intact bacteria using several methods led to a decrease in the activity of epilancin 15X. Antagonism-based experiments on 96-well plate and agar diffusion plate pointed towards a possible interaction between epilancin 15X and Lipid II and this was confirmed by Circular Dichroism (CD) based experiments. However, this interaction did not lead to a detectable effect on either carboxyfluorescein (CF) leakage or proton permeability. All experiments point to the involvement of a phosphodiester-containing target within a polyisoprene-based biosynthesis pathway, yet the exact identity of the target remains obscure so far.
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Affiliation(s)
- Xiaoqi Wang
- Membrane Biochemistry and Biophysics, Department of Chemistry, Faculty of Science, Utrecht University, Utrecht, Netherlands
| | - Yang Xu
- Membrane Biochemistry and Biophysics, Department of Chemistry, Faculty of Science, Utrecht University, Utrecht, Netherlands
| | - Nathaniel I Martin
- Biological Chemistry Group, Institute of Biology, Leiden University, Sylviusweg 72, 2333 BE Leiden, Netherlands
| | - Eefjan Breukink
- Membrane Biochemistry and Biophysics, Department of Chemistry, Faculty of Science, Utrecht University, Utrecht, Netherlands; Zhejiang Provincial Key Laboratory of Food Microbiotechnology Research of China, the Zhejiang Gongshang University of China, Hangzhou, China.
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11
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Sesarman A, Luput L, Rauca VF, Patras L, Licarete E, Meszaros MS, Dume BR, Negrea G, Toma VA, Muntean D, Porfire A, Banciu M. Targeting of M2 macrophages with IL-13-functionalized liposomal prednisolone inhibits melanoma angiogenesis in vivo. J Liposome Res 2024:1-12. [PMID: 38379249 DOI: 10.1080/08982104.2024.2315452] [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: 07/31/2023] [Accepted: 01/31/2024] [Indexed: 02/22/2024]
Abstract
The intricate cooperation between cancer cells and nontumor stromal cells within melanoma microenvironment (MME) enables tumor progression and metastasis. We previously demonstrated that the interplay between tumor-associated macrophages (TAMs) and melanoma cells can be disrupted by using long-circulating liposomes (LCLs) encapsulating prednisolone phosphate (PLP) (LCL-PLP) that inhibited tumor angiogenesis coordinated by TAMs. In this study, our goal was to improve LCL specificity for protumor macrophages (M2-like (i.e., TAMs) macrophages) and to induce a more precise accumulation at tumor site by loading PLP into IL-13-conjugated liposomes (IL-13-LCL-PLP), since IL-13 receptor is overexpressed in this type of macrophages. The IL-13-LCL-PLP liposomal formulation was obtained by covalent attachment of thiolated IL-13 to maleimide-functionalized LCL-PLP. C57BL/6 mice bearing B16.F10 s.c melanoma tumors were used to investigate the antitumor action of LCL-PLP and IL-13-LCL-PLP. Our results showed that IL-13-LCL-PLP formulation remained stable in biological fluids after 24h and it was preferentially taken up by M2 polarized macrophages. IL-13-LCL-PLP induced strong tumor growth inhibition compared to nonfunctionalized LCL-PLP at the same dose, by altering TAMs-mediated angiogenesis and oxidative stress, limiting resistance to apoptosis and invasive features in MME. These findings suggest IL-13-LCL-PLP might become a promising delivery platform for chemotherapeutic agents in melanoma.
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Affiliation(s)
- Alina Sesarman
- Department of Molecular Biology and Biotechnology, and Center of Systems Biology, Biodiversity and Bioresources, Faculty of Biology and Geology, Babes-Bolyai University, Cluj-Napoca, Romania
| | - Lavinia Luput
- Department of Molecular Biology and Biotechnology, and Center of Systems Biology, Biodiversity and Bioresources, Faculty of Biology and Geology, Babes-Bolyai University, Cluj-Napoca, Romania
| | - Valentin-Florian Rauca
- Department of Molecular Biology and Biotechnology, and Center of Systems Biology, Biodiversity and Bioresources, Faculty of Biology and Geology, Babes-Bolyai University, Cluj-Napoca, Romania
- Department of Dermatology and Allergology, School of Medicine, Technical University of Munich, Munich, Germany
| | - Laura Patras
- Department of Molecular Biology and Biotechnology, and Center of Systems Biology, Biodiversity and Bioresources, Faculty of Biology and Geology, Babes-Bolyai University, Cluj-Napoca, Romania
| | - Emilia Licarete
- Department of Molecular Biology and Biotechnology, and Center of Systems Biology, Biodiversity and Bioresources, Faculty of Biology and Geology, Babes-Bolyai University, Cluj-Napoca, Romania
- Molecular Biology Centre, Institute for Interdisciplinary Research in Bio-Nano-Sciences of Babes-Bolyai University, Cluj-Napoca, Romania
| | - Marta-Szilvia Meszaros
- Department of Molecular Biology and Biotechnology, and Center of Systems Biology, Biodiversity and Bioresources, Faculty of Biology and Geology, Babes-Bolyai University, Cluj-Napoca, Romania
| | - Bogdan Razvan Dume
- Doctoral School in Integrative Biology, Faculty of Biology and Geology, "Babes-Bolyai" University, Cluj-Napoca, Romania
| | - Giorgiana Negrea
- Doctoral School in Integrative Biology, Faculty of Biology and Geology, "Babes-Bolyai" University, Cluj-Napoca, Romania
| | - Vlad-Alexandru Toma
- Department of Molecular Biology and Biotechnology, and Center of Systems Biology, Biodiversity and Bioresources, Faculty of Biology and Geology, Babes-Bolyai University, Cluj-Napoca, Romania
- Department of Experimental Biology and Biochemistry, nstitute of Biological Research, branch of NIRDBS Bucharest, Cluj-Napoca, Romania
| | - Dana Muntean
- Department of Pharmaceutical Technology and Biopharmaceutics, Faculty of Pharmacy, University of Medicine and Pharmacy "Iuliu Hatieganu", Cluj-Napoca, Romania
| | - Alina Porfire
- Department of Pharmaceutical Technology and Biopharmaceutics, Faculty of Pharmacy, University of Medicine and Pharmacy "Iuliu Hatieganu", Cluj-Napoca, Romania
| | - Manuela Banciu
- Department of Molecular Biology and Biotechnology, and Center of Systems Biology, Biodiversity and Bioresources, Faculty of Biology and Geology, Babes-Bolyai University, Cluj-Napoca, Romania
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12
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Menon I, Sych T, Son Y, Morizumi T, Lee J, Ernst OP, Khelashvili G, Sezgin E, Levitz J, Menon AK. A cholesterol switch controls phospholipid scrambling by G protein-coupled receptors. J Biol Chem 2024; 300:105649. [PMID: 38237683 PMCID: PMC10874734 DOI: 10.1016/j.jbc.2024.105649] [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: 11/25/2023] [Revised: 01/04/2024] [Accepted: 01/07/2024] [Indexed: 01/30/2024] Open
Abstract
Class A G protein-coupled receptors (GPCRs), a superfamily of cell membrane signaling receptors, moonlight as constitutively active phospholipid scramblases. The plasma membrane of metazoan cells is replete with GPCRs yet has a strong resting trans-bilayer phospholipid asymmetry, with the signaling lipid phosphatidylserine confined to the cytoplasmic leaflet. To account for the persistence of this lipid asymmetry in the presence of GPCR scramblases, we hypothesized that GPCR-mediated lipid scrambling is regulated by cholesterol, a major constituent of the plasma membrane. We now present a technique whereby synthetic vesicles reconstituted with GPCRs can be supplemented with cholesterol to a level similar to that of the plasma membrane and show that the scramblase activity of two prototypical GPCRs, opsin and the β1-adrenergic receptor, is impaired upon cholesterol loading. Our data suggest that cholesterol acts as a switch, inhibiting scrambling above a receptor-specific threshold concentration to disable GPCR scramblases at the plasma membrane.
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Affiliation(s)
- Indu Menon
- Department of Biochemistry, Weill Cornell Medical College, New York, New York, USA
| | - Taras Sych
- Science for Life Laboratory, Department of Women's and Children's Health, Karolinska Institutet, Solna, Sweden
| | - Yeeun Son
- Graduate program in Biochemistry, Cell and Molecular Biology, Weill Cornell Graduate School, New York, New York, USA; Structural Biology Program, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Takefumi Morizumi
- Department of Biochemistry, University of Toronto, Toronto, Ontario, Canada
| | - Joon Lee
- Department of Biochemistry, Weill Cornell Medical College, New York, New York, USA
| | - Oliver P Ernst
- Department of Biochemistry, University of Toronto, Toronto, Ontario, Canada; Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada
| | - George Khelashvili
- Department of Physiology and Biophysics, Weill Cornell Medical College, New York, New York, USA; Institute of Computational Biomedicine, Weill Cornell Medical College, New York, New York, USA
| | - Erdinc Sezgin
- Graduate program in Biochemistry, Cell and Molecular Biology, Weill Cornell Graduate School, New York, New York, USA
| | - Joshua Levitz
- Department of Biochemistry, Weill Cornell Medical College, New York, New York, USA
| | - Anant K Menon
- Department of Biochemistry, Weill Cornell Medical College, New York, New York, USA.
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13
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Dugić M, Brzobohatá H, Mojr V, Dolejšová T, Lišková P, Do Pham DD, Rejman D, Mikušová G, Fišer R. LEGO-lipophosphonoxins: length of hydrophobic module affects permeabilizing activity in target membranes of different phospholipid composition. RSC Adv 2024; 14:2745-2756. [PMID: 38234873 PMCID: PMC10792433 DOI: 10.1039/d3ra07251g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Accepted: 01/05/2024] [Indexed: 01/19/2024] Open
Abstract
In the past few decades, society has faced rapid development and spreading of antimicrobial resistance due to antibiotic misuse and overuse and the immense adaptability of bacteria. Difficulties in obtaining effective antimicrobial molecules from natural sources challenged scientists to develop synthetic molecules with antimicrobial effect. We developed modular molecules named LEGO-Lipophosphonoxins (LEGO-LPPO) capable of inducing cytoplasmic membrane perforation. In this structure-activity relationship study we focused on the role of the LEGO-LPPO hydrophobic module directing the molecule insertion into the cytoplasmic membrane. We selected three LEGO-LPPO molecules named C9, C8 and C7 differing in the length of their hydrophobic chain and consisting of an alkenyl group containing one double bond. The molecule with the long hydrophobic chain (C9) was shown to be the most effective with the lowest MIC and highest perforation rate both in vivo and in vitro. We observed high antimicrobial activity against both G+ and G- bacteria with significant differences in LEGO-LPPOs mechanism of action on these two cell types. We observed a highly cooperative mechanism of LEGO-LPPO action on G- bacteria as well as on liposomes resembling G- bacteria. LEGO-LPPO action on G- bacteria was significantly slower compared to G+ bacteria suggesting the role of the outer membrane in affecting the LEGO-LPPOs perforation rate. This notion was supported by the higher sensitivity of the E. coli strain with a compromised outer membrane. Finally, we noted that the composition of the cytoplasmic membrane affects the activity of LEGO-LPPOs since the presence of phosphatidylethanolamine increases their membrane disrupting activity.
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Affiliation(s)
- Milica Dugić
- Department of Genetics and Microbiology, Faculty of Science, Charles University Viničná 5 128 00 Prague 2 Czech Republic
| | - Hana Brzobohatá
- Department of Genetics and Microbiology, Faculty of Science, Charles University Viničná 5 128 00 Prague 2 Czech Republic
| | - Viktor Mojr
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences v. v. i. Flemingovo nám. 2 166 10 Prague 6 Czech Republic
| | - Tereza Dolejšová
- Department of Genetics and Microbiology, Faculty of Science, Charles University Viničná 5 128 00 Prague 2 Czech Republic
| | - Petra Lišková
- Department of Genetics and Microbiology, Faculty of Science, Charles University Viničná 5 128 00 Prague 2 Czech Republic
| | - Duy Dinh Do Pham
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences v. v. i. Flemingovo nám. 2 166 10 Prague 6 Czech Republic
| | - Dominik Rejman
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences v. v. i. Flemingovo nám. 2 166 10 Prague 6 Czech Republic
| | - Gabriela Mikušová
- Department of Genetics and Microbiology, Faculty of Science, Charles University Viničná 5 128 00 Prague 2 Czech Republic
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences v. v. i. Flemingovo nám. 2 166 10 Prague 6 Czech Republic
| | - Radovan Fišer
- Department of Genetics and Microbiology, Faculty of Science, Charles University Viničná 5 128 00 Prague 2 Czech Republic
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14
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Menon I, Sych T, Son Y, Morizumi T, Lee J, Ernst OP, Khelashvili G, Sezgin E, Levitz J, Menon AK. A cholesterol switch controls phospholipid scrambling by G protein-coupled receptors. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2023.11.24.568580. [PMID: 38045315 PMCID: PMC10690279 DOI: 10.1101/2023.11.24.568580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/05/2023]
Abstract
Class A G protein-coupled receptors (GPCRs), a superfamily of cell membrane signaling receptors, moonlight as constitutively active phospholipid scramblases. The plasma membrane of metazoan cells is replete with GPCRs, yet has a strong resting trans-bilayer phospholipid asymmetry, with the signaling lipid phosphatidylserine confined to the cytoplasmic leaflet. To account for the persistence of this lipid asymmetry in the presence of GPCR scramblases, we hypothesized that GPCR-mediated lipid scrambling is regulated by cholesterol, a major constituent of the plasma membrane. We now present a technique whereby synthetic vesicles reconstituted with GPCRs can be supplemented with cholesterol to a level similar to that of the plasma membrane and show that the scramblase activity of two prototypical GPCRs, opsin and the β1-adrenergic receptor, is impaired upon cholesterol loading. Our data suggest that cholesterol acts as a switch, inhibiting scrambling above a receptor-specific threshold concentration to disable GPCR scramblases at the plasma membrane.
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Affiliation(s)
- Indu Menon
- Department of Biochemistry, Weill Cornell Medical College, New York, NY 10065, USA
| | - Taras Sych
- Science for Life Laboratory, Department of Women’s and Children’s Health, Karolinska Institutet, 17165 Solna, Sweden
| | - Yeeun Son
- Graduate program in Biochemistry, Cell and Molecular Biology, Weill Cornell Graduate School, New York, NY 10065, USA
- Structural Biology Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Takefumi Morizumi
- Department of Biochemistry, University of Toronto, Toronto, ON, Canada M5S 1A8
| | - Joon Lee
- Department of Biochemistry, Weill Cornell Medical College, New York, NY 10065, USA
| | - Oliver P. Ernst
- Department of Biochemistry, University of Toronto, Toronto, ON, Canada M5S 1A8
- Department of Molecular Genetics, University of Toronto, Toronto, ON, Canada M5S 1A8
| | - George Khelashvili
- Department of Physiology and Biophysics, Weill Cornell Medical College, New York, NY 10065, USA
- Institute of Computational Biomedicine, Weill Cornell Medical College, New York, NY 10065, USA
| | - Erdinc Sezgin
- Graduate program in Biochemistry, Cell and Molecular Biology, Weill Cornell Graduate School, New York, NY 10065, USA
| | - Joshua Levitz
- Department of Biochemistry, Weill Cornell Medical College, New York, NY 10065, USA
| | - Anant K. Menon
- Department of Biochemistry, Weill Cornell Medical College, New York, NY 10065, USA
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15
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García-Montoya C, García-Linares S, Heras-Márquez D, Majnik M, Laxalde-Fernández D, Amigot-Sánchez R, Martínez-Del-Pozo Á, Palacios-Ortega J. The interaction of the ribotoxin α-sarcin with complex model lipid vesicles. Arch Biochem Biophys 2024; 751:109836. [PMID: 38000493 DOI: 10.1016/j.abb.2023.109836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 11/06/2023] [Accepted: 11/20/2023] [Indexed: 11/26/2023]
Abstract
Fungal ribotoxins are extracellular RNases that inactivate ribosomes by cleaving a single phosphodiester bond at the universally conserved sarcin-ricin loop of the large rRNA. However, to reach the ribosomes, they need to cross the plasma membrane. It is there where these toxins show their cellular specificity, being especially active against tumoral or virus-infected cells. Previous studies have shown that fungal ribotoxins interact with negatively charged membranes, typically containing phosphatidylserine or phosphatidylglycerol. This ability is rooted on their long, non-structured, positively charged loops, and its N-terminal β-hairpin. However, its effect on complex lipid mixtures, including sphingophospholipids or cholesterol, remains poorly studied. Here, wild-type α-sarcin was used to evaluate its interaction with a variety of membranes not assayed before, which resemble much more closely mammalian cell membranes. The results confirm that α-sarcin is particularly sensitive to charge density on the vesicle surface. Its ability to induce vesicle aggregation is strongly influenced by both the lipid headgroup and the degree of saturation of the fatty acid chains. Acyl chain length is indeed particularly important for lipid mixing. Finally, cholesterol plays an important role in diluting the concentration of available negative charges and modulates the ability of α-sarcin to cross the membrane.
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Affiliation(s)
- Carmen García-Montoya
- Departamento de Bioquímica y Biología Molecular, Universidad Complutense, Madrid, Spain
| | - Sara García-Linares
- Departamento de Bioquímica y Biología Molecular, Universidad Complutense, Madrid, Spain
| | - Diego Heras-Márquez
- Departamento de Bioquímica y Biología Molecular, Universidad Complutense, Madrid, Spain
| | - Manca Majnik
- Departamento de Bioquímica y Biología Molecular, Universidad Complutense, Madrid, Spain
| | | | - Rafael Amigot-Sánchez
- Departamento de Bioquímica y Biología Molecular, Universidad Complutense, Madrid, Spain
| | | | - Juan Palacios-Ortega
- Departamento de Bioquímica y Biología Molecular, Universidad Complutense, Madrid, Spain; Biochemistry, Faculty of Science and Engineering, Åbo Akademi University, Turku, Finland.
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16
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van de Wakker SI, Bauzá‐Martinez J, Ríos Arceo C, Manjikian H, Snijders Blok CJB, Roefs MT, Willms E, Maas RGC, Pronker MF, de Jong OG, Wu W, Görgens A, El Andaloussi S, Sluijter JPG, Vader P. Size matters: Functional differences of small extracellular vesicle subpopulations in cardiac repair responses. J Extracell Vesicles 2024; 13:e12396. [PMID: 38179654 PMCID: PMC10767609 DOI: 10.1002/jev2.12396] [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: 07/18/2023] [Accepted: 11/22/2023] [Indexed: 01/06/2024] Open
Abstract
Cardiac progenitor cell (CPC)-derived small extracellular vesicles (sEVs) exhibit great potential to stimulate cardiac repair. However, the multifaceted nature of sEV heterogeneity presents a challenge in understanding the distinct mechanisms underlying their regenerative abilities. Here, a dual-step multimodal flowthrough and size-exclusion chromatography method was applied to isolate and separate CPC-derived sEV subpopulations to study the functional differences related to cardiac repair responses. Three distinct sEV subpopulations were identified with unique protein profiles. Functional cell assays for cardiac repair-related processes demonstrated that the middle-sized and smallest-sized sEV subpopulations exhibited the highest pro-angiogenic and anti-fibrotic activities. Proteasome activity was uniquely seen in the smallest-sized subpopulation. The largest-sized subpopulation showed no effect in any of the functional assays. This research uncovers the existence of sEV subpopulations, each characterized by a distinct composition and biological function. Enhancing our understanding of sEV heterogeneity will provide valuable insights into sEV mechanisms of action, ultimately accelerating the translation of sEV therapeutics.
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Affiliation(s)
- Simonides Immanuel van de Wakker
- Department of Experimental Cardiology, Regenerative Medicine Center Utrecht, Circulatory health Research CenterUniversity Utrecht, University Medical Center UtrechtUtrechtThe Netherlands
| | - Julia Bauzá‐Martinez
- Biomolecular Mass Spectrometry and Proteomics, Bijvoet Center for Biomolecular Research and Utrecht Institute for Pharmaceutical SciencesUtrecht UniversityUtrechtThe Netherlands
| | - Carla Ríos Arceo
- Department of Experimental Cardiology, Regenerative Medicine Center Utrecht, Circulatory health Research CenterUniversity Utrecht, University Medical Center UtrechtUtrechtThe Netherlands
| | - Herak Manjikian
- Department of Experimental Cardiology, Regenerative Medicine Center Utrecht, Circulatory health Research CenterUniversity Utrecht, University Medical Center UtrechtUtrechtThe Netherlands
| | - Christian Jamie Bernard Snijders Blok
- Department of Experimental Cardiology, Regenerative Medicine Center Utrecht, Circulatory health Research CenterUniversity Utrecht, University Medical Center UtrechtUtrechtThe Netherlands
| | - Marieke Theodora Roefs
- Department of Experimental Cardiology, Regenerative Medicine Center Utrecht, Circulatory health Research CenterUniversity Utrecht, University Medical Center UtrechtUtrechtThe Netherlands
| | - Eduard Willms
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular ScienceLa Trobe UniversityMelbourneAustralia
| | - Renee Goverdina Catharina Maas
- Department of Experimental Cardiology, Regenerative Medicine Center Utrecht, Circulatory health Research CenterUniversity Utrecht, University Medical Center UtrechtUtrechtThe Netherlands
| | - Matti Feije Pronker
- Biomolecular Mass Spectrometry and Proteomics, Bijvoet Center for Biomolecular Research and Utrecht Institute for Pharmaceutical SciencesUtrecht UniversityUtrechtThe Netherlands
| | - Olivier Gerrit de Jong
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences (UIPS)Utrecht UniversityUtrechtThe Netherlands
| | - Wei Wu
- Biomolecular Mass Spectrometry and Proteomics, Bijvoet Center for Biomolecular Research and Utrecht Institute for Pharmaceutical SciencesUtrecht UniversityUtrechtThe Netherlands
- Singapore Immunology Network (SIgN), Agency for ScienceTechnology and Research (A*STAR)SingaporeSingapore
- Department of PharmacyNational University of SingaporeSingaporeSingapore
| | - André Görgens
- Department of Laboratory MedicineKarolinska InstituteStockholm, HuddingeSweden
- Institute for Transfusion Medicine, University Hospital EssenUniversity of Duisburg‐EssenEssenGermany
| | - Samir El Andaloussi
- Department of Laboratory MedicineKarolinska InstituteStockholm, HuddingeSweden
| | - Joost Petrus Gerardus Sluijter
- Department of Experimental Cardiology, Regenerative Medicine Center Utrecht, Circulatory health Research CenterUniversity Utrecht, University Medical Center UtrechtUtrechtThe Netherlands
| | - Pieter Vader
- Department of Experimental Cardiology, Regenerative Medicine Center Utrecht, Circulatory health Research CenterUniversity Utrecht, University Medical Center UtrechtUtrechtThe Netherlands
- CDL ResearchUniversity Medical Center UtrechtUtrechtThe Netherlands
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17
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Morán‐Lalangui M, Coutinho A, Prieto M, Fedorov A, Pérez‐Gil J, Loura LMS, García‐Álvarez B. Exploring protein-protein interactions and oligomerization state of pulmonary surfactant protein C (SP-C) through FRET and fluorescence self-quenching. Protein Sci 2024; 33:e4835. [PMID: 37984447 PMCID: PMC10731621 DOI: 10.1002/pro.4835] [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: 07/10/2023] [Revised: 11/03/2023] [Accepted: 11/06/2023] [Indexed: 11/22/2023]
Abstract
Pulmonary surfactant (PS) is a lipid-protein complex that forms films reducing surface tension at the alveolar air-liquid interface. Surfactant protein C (SP-C) plays a key role in rearranging the lipids at the PS surface layers during breathing. The N-terminal segment of SP-C, a lipopeptide of 35 amino acids, contains two palmitoylated cysteines, which affect the stability and structure of the molecule. The C-terminal region comprises a transmembrane α-helix that contains a ALLMG motif, supposedly analogous to a well-studied dimerization motif in glycophorin A. Previous studies have demonstrated the potential interaction between SP-C molecules using approaches such as Bimolecular Complementation assays or computational simulations. In this work, the oligomerization state of SP-C in membrane systems has been studied using fluorescence spectroscopy techniques. We have performed self-quenching and FRET assays to analyze dimerization of native palmitoylated SP-C and a non-palmitoylated recombinant version of SP-C (rSP-C) using fluorescently labeled versions of either protein reconstituted in different lipid systems mimicking pulmonary surfactant environments. Our results reveal that doubly palmitoylated native SP-C remains primarily monomeric. In contrast, non-palmitoylated recombinant SP-C exhibits dimerization, potentiated at high concentrations, especially in membranes with lipid phase separation. Therefore, palmitoylation could play a crucial role in stabilizing the monomeric α-helical conformation of SP-C. Depalmitoylation, high protein densities as a consequence of membrane compartmentalization, and other factors may all lead to the formation of protein dimers and higher-order oligomers, which could have functional implications under certain pathological conditions and contribute to membrane transformations associated with surfactant metabolism and alveolar homeostasis.
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Affiliation(s)
- Mishelle Morán‐Lalangui
- Department of Biochemistry and Molecular BiologyFaculty of Biology, Complutense UniversityMadridSpain
- Research Institute “Hospital 12 de Octubre (imas12)”MadridSpain
| | - Ana Coutinho
- iBB Institute for Bioengineering and Bioscience, IST, Universidade de LisboaLisbonPortugal
- Associate Lab i4HB, Institute for Health and Bioeconomy at IST, Universidade de LisboaLisbonPortugal
- Department of Chemistry and BiochemistryFaculty of Sciences, University of LisbonLisbonPortugal
| | - Manuel Prieto
- iBB Institute for Bioengineering and Bioscience, IST, Universidade de LisboaLisbonPortugal
- Associate Lab i4HB, Institute for Health and Bioeconomy at IST, Universidade de LisboaLisbonPortugal
| | - Alexander Fedorov
- iBB Institute for Bioengineering and Bioscience, IST, Universidade de LisboaLisbonPortugal
- Associate Lab i4HB, Institute for Health and Bioeconomy at IST, Universidade de LisboaLisbonPortugal
| | - Jesús Pérez‐Gil
- Department of Biochemistry and Molecular BiologyFaculty of Biology, Complutense UniversityMadridSpain
- Research Institute “Hospital 12 de Octubre (imas12)”MadridSpain
| | - Luís M. S. Loura
- Department of Chemistry, Coimbra Chemistry Centre, Institute of Molecular Sciences (CQC‐IMS)University of CoimbraCoimbraPortugal
- CNC Centre for Neuroscience and Cell Biology, University of CoimbraCoimbraPortugal
- Faculty of PharmacyUniversity of CoimbraCoimbraPortugal
| | - Begoña García‐Álvarez
- Department of Biochemistry and Molecular BiologyFaculty of Biology, Complutense UniversityMadridSpain
- Research Institute “Hospital 12 de Octubre (imas12)”MadridSpain
- Department of Biochemistry and Molecular BiologyFaculty of Chemistry, Complutense UniversityMadridSpain
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18
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van Solinge TS, Friis KP, O'Brien K, Verschoor RL, van Aarle J, Koekman A, Breakefield XO, Vader P, Schiffelers R, Broekman M. Heparin interferes with the uptake of liposomes in glioma. Int J Pharm X 2023; 6:100191. [PMID: 37408568 PMCID: PMC10319201 DOI: 10.1016/j.ijpx.2023.100191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 06/19/2023] [Accepted: 06/20/2023] [Indexed: 07/07/2023] Open
Abstract
In glioblastoma, a malignant primary brain tumor, liposomes have shown promise in pre-clinical and early phase clinical trials as delivery vehicles for therapeutics. However, external factors influencing cellular uptake of liposomes in glioma cells are poorly understood. Heparin and heparin analogues are commonly used in glioma patients to decrease the risk of thrombo-embolic events. Our results show that heparin inhibits pegylated liposome uptake by U87 glioma and GL261 cells in a dose dependent manner in vitro, and that heparin-mediated inhibition of uptake required presence of fetal bovine serum in the media. In a subcutaneous model of glioma, Cy5.5 labeled liposomes could be detected with in vivo imaging after direct intra-tumoral injection. Ex-vivo analysis with flow cytometry showed a decreased uptake of liposomes into tumor cells in mice treated systemically with heparin compared to those treated with vehicle only.
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Affiliation(s)
- Thomas S. van Solinge
- Department of Neurology and Center for Molecular Imaging Research, Department of Radiology, Massachusetts General Hospital and NeuroDiscovery Center, Harvard Medical School, Boston, MA 02114, USA
- Department of Neurosurgery, Leiden University Medical Center, Leiden, the Netherlands
| | - Kristina Pagh Friis
- Department of Neurology and Center for Molecular Imaging Research, Department of Radiology, Massachusetts General Hospital and NeuroDiscovery Center, Harvard Medical School, Boston, MA 02114, USA
| | - Killian O'Brien
- Department of Neurology and Center for Molecular Imaging Research, Department of Radiology, Massachusetts General Hospital and NeuroDiscovery Center, Harvard Medical School, Boston, MA 02114, USA
| | - Romy L. Verschoor
- Department of Neurology and Center for Molecular Imaging Research, Department of Radiology, Massachusetts General Hospital and NeuroDiscovery Center, Harvard Medical School, Boston, MA 02114, USA
| | - Jeroen van Aarle
- Department of Neurosurgery, University Medical Center, Utrecht, the Netherlands
| | - Arnold Koekman
- Department of Clinical Chemistry and Haematology, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Xandra O. Breakefield
- Department of Neurology and Center for Molecular Imaging Research, Department of Radiology, Massachusetts General Hospital and NeuroDiscovery Center, Harvard Medical School, Boston, MA 02114, USA
| | - Pieter Vader
- CDL Research, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Raymond Schiffelers
- Department of Clinical Chemistry and Haematology, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Marike Broekman
- Department of Neurology and Center for Molecular Imaging Research, Department of Radiology, Massachusetts General Hospital and NeuroDiscovery Center, Harvard Medical School, Boston, MA 02114, USA
- Department of Neurosurgery, Leiden University Medical Center, Leiden, the Netherlands
- Department of Neurosurgery, Haaglanden Medical Center, The Hague, the Netherlands
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19
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Jahn H, Bartoš L, Dearden GI, Dittman JS, Holthuis JCM, Vácha R, Menon AK. Phospholipids are imported into mitochondria by VDAC, a dimeric beta barrel scramblase. Nat Commun 2023; 14:8115. [PMID: 38065946 PMCID: PMC10709637 DOI: 10.1038/s41467-023-43570-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Accepted: 11/13/2023] [Indexed: 12/17/2023] Open
Abstract
Mitochondria are double-membrane-bounded organelles that depend critically on phospholipids supplied by the endoplasmic reticulum. These lipids must cross the outer membrane to support mitochondrial function, but how they do this is unclear. We identify the Voltage Dependent Anion Channel (VDAC), an abundant outer membrane protein, as a scramblase-type lipid transporter that catalyzes lipid entry. On reconstitution into membrane vesicles, dimers of human VDAC1 and VDAC2 catalyze rapid transbilayer translocation of phospholipids by a mechanism that is unrelated to their channel activity. Coarse-grained molecular dynamics simulations of VDAC1 reveal that lipid scrambling occurs at a specific dimer interface where polar residues induce large water defects and bilayer thinning. The rate of phospholipid import into yeast mitochondria is an order of magnitude lower in the absence of VDAC homologs, indicating that VDACs provide the main pathway for lipid entry. Thus, VDAC isoforms, members of a superfamily of beta barrel proteins, moonlight as a class of phospholipid scramblases - distinct from alpha-helical scramblase proteins - that act to import lipids into mitochondria.
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Affiliation(s)
- Helene Jahn
- Department of Biochemistry, Weill Cornell Medical College, New York, NY, 10065, USA
| | - Ladislav Bartoš
- CEITEC - Central European Institute of Technology, Masaryk University, Kamenice 5, 62500, Brno, Czech Republic
- National Centre for Biomolecular Research, Faculty of Science, Masaryk University, Kamenice 5, 62500, Brno, Czech Republic
| | - Grace I Dearden
- Department of Biochemistry, Weill Cornell Medical College, New York, NY, 10065, USA
| | - Jeremy S Dittman
- Department of Biochemistry, Weill Cornell Medical College, New York, NY, 10065, USA
| | - Joost C M Holthuis
- Department of Molecular Cell Biology, University of Osnabrück, Osnabrück, 49076, Germany
| | - Robert Vácha
- CEITEC - Central European Institute of Technology, Masaryk University, Kamenice 5, 62500, Brno, Czech Republic.
- National Centre for Biomolecular Research, Faculty of Science, Masaryk University, Kamenice 5, 62500, Brno, Czech Republic.
| | - Anant K Menon
- Department of Biochemistry, Weill Cornell Medical College, New York, NY, 10065, USA.
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20
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Xie M, Koch EHW, van Walree CA, Sobota A, Sonnen AFP, Breukink E, Killian JA, Lorent JH. Two separate mechanisms are involved in membrane permeabilization during lipid oxidation. Biophys J 2023; 122:4503-4517. [PMID: 37905401 PMCID: PMC10719051 DOI: 10.1016/j.bpj.2023.10.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 10/18/2023] [Accepted: 10/25/2023] [Indexed: 11/02/2023] Open
Abstract
Lipid oxidation is a universal degradative process of cell membrane lipids that is induced by oxidative stress and reactive oxygen and nitrogen species (RONS) in multiple pathophysiological situations. It has been shown that certain oxidized lipids alter membrane properties, leading to a loss of membrane function. Alteration of membrane properties is thought to depend on the initial membrane lipid composition, such as the number of acyl chain unsaturations. However, it is unclear how oxidative damage is related to biophysical properties of membranes. We therefore set out to quantify lipid oxidation through various analytical methods and determine key biophysical membrane parameters using model membranes containing lipids with different degrees of lipid unsaturation. As source for RONS, we used cold plasma, which is currently developed as treatment for infections and cancer. Our data revealed complex lipid oxidation that can lead to two main permeabilization mechanisms. The first one appears upon direct contact of membranes with RONS and depends on the formation of truncated oxidized phospholipids. These lipids seem to be partly released from the bilayer, implying that they are likely to interact with other membranes and potentially act as signaling molecules. This mechanism is independent of lipid unsaturation, does not rely on large variations in lipid packing, and is most probably mediated via short-living RONS. The second mechanism takes over after longer incubation periods and probably depends on the continued formation of lipid oxygen adducts such as lipid hydroperoxides or ketones. This mechanism depends on lipid unsaturation and involves large variations in lipid packing. This study indicates that polyunsaturated lipids, which are present in mammalian membranes rather than in bacteria, do not sensitize membranes to instant permeabilization by RONS but could promote long-term damage.
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Affiliation(s)
- Min Xie
- Membrane Biochemistry & Biophysics, Bijvoet Center for Biomolecular Research, Department of Chemistry, Utrecht University, Utrecht, the Netherlands
| | - Eveline H W Koch
- Membrane Biochemistry & Biophysics, Bijvoet Center for Biomolecular Research, Department of Chemistry, Utrecht University, Utrecht, the Netherlands
| | - Cornelis A van Walree
- Membrane Biochemistry & Biophysics, Bijvoet Center for Biomolecular Research, Department of Chemistry, Utrecht University, Utrecht, the Netherlands; University College Utrecht, Campusplein 1, Utrecht, the Netherlands
| | - Ana Sobota
- Atmospheric Pressure Non-Thermal Plasmas and Their Interaction with Targets, Applied Physics Department, Eindhoven University of Technology, Eindhoven, the Netherlands
| | - Andreas F P Sonnen
- Membrane Biochemistry & Biophysics, Bijvoet Center for Biomolecular Research, Department of Chemistry, Utrecht University, Utrecht, the Netherlands; Pathology Department, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Eefjan Breukink
- Membrane Biochemistry & Biophysics, Bijvoet Center for Biomolecular Research, Department of Chemistry, Utrecht University, Utrecht, the Netherlands
| | - J Antoinette Killian
- Membrane Biochemistry & Biophysics, Bijvoet Center for Biomolecular Research, Department of Chemistry, Utrecht University, Utrecht, the Netherlands
| | - Joseph H Lorent
- Membrane Biochemistry & Biophysics, Bijvoet Center for Biomolecular Research, Department of Chemistry, Utrecht University, Utrecht, the Netherlands; Cellular and Molecular Pharmacology, Translational Research from Experimental and Clinical Pharmacology to Treatment Optimization, Louvain Drug Research Institute, UCLouvain, Brussels, Belgium.
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21
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Wadeesirisak K, Castano S, Vaysse L, Bonfils F, Peruch F, Rattanaporn K, Liengprayoon S, Lecomte S, Bottier C. Interactions of REF1 and SRPP1 rubber particle proteins from Hevea brasiliensis with synthetic phospholipids: Effect of charge and size of lipid headgroup. Biochem Biophys Res Commun 2023; 679:205-214. [PMID: 37708579 DOI: 10.1016/j.bbrc.2023.08.062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 08/18/2023] [Accepted: 08/29/2023] [Indexed: 09/16/2023]
Abstract
According to the fatty acid and headgroup compositions of the phospholipids (PL) from Hevea brasiliensis latex, three synthetic PL were selected (i.e. POPA: 1-palmitoyl-2-oleoyl-sn-glycero-3-phosphate POPC: 1-palmitoyl-2-oleoyl-sn-glycero-3-phosphocholine and POPG: 1-palmitoyl-2-oleoyl-sn-glycero-3-phosphoglycerol) to investigate the effect of PL headgroup on the interactions with two major proteins of Hevea latex, i.e. Rubber Elongation Factor (REF1) and Small Rubber Particle Protein (SRPP1). Protein/lipid interactions were screened using two models (lipid vesicles in solution or lipid monolayers at air/liquid interface). Calcein leakage, surface pressure, ellipsometry, microscopy and spectroscopy revealed that both REF1 and SRPP1 displayed stronger interactions with anionic POPA and POPG, as compared to zwitterionic POPC. A particular behavior of REF1 was observed when interacting with POPA monolayers (i.e. aggregation + modification of secondary structure from α-helices to β-sheets, characteristic of its amyloid aggregated form), which might be involved in the irreversible coagulation mechanism of Hevea rubber particles.
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Affiliation(s)
- Kanthida Wadeesirisak
- Institute of Food Research and Product Development, Kasetsart University, 10900, Bangkok, Thailand
| | - Sabine Castano
- Univ. Bordeaux, CNRS, Bordeaux INP, CBMN, UMR5248, F-33600, Pessac, France
| | - Laurent Vaysse
- CIRAD, UPR BioWooEB, F-34398, Montpellier, France; BioWooEB, Univ Montpellier, CIRAD, Montpellier, France
| | - Frédéric Bonfils
- CIRAD, UPR BioWooEB, F-34398, Montpellier, France; BioWooEB, Univ Montpellier, CIRAD, Montpellier, France
| | - Frédéric Peruch
- Univ. Bordeaux, CNRS, Bordeaux INP, LCPO, UMR 5629, F-33600, Pessac, France
| | - Kittipong Rattanaporn
- Department of Biotechnology, Faculty of Agro-Industry, Kasetsart University, 10900, Bangkok, Thailand
| | - Siriluck Liengprayoon
- Kasetsart Agricultural and Agro-Industrial Product Improvement Institute, Kasetsart University, 10900, Bangkok, Thailand
| | - Sophie Lecomte
- Univ. Bordeaux, CNRS, Bordeaux INP, CBMN, UMR5248, F-33600, Pessac, France.
| | - Céline Bottier
- CIRAD, UPR BioWooEB, F-34398, Montpellier, France; BioWooEB, Univ Montpellier, CIRAD, Montpellier, France.
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22
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Sugimoto K, Shinagawa T, Kuroki K, Toma S, Hosomi R, Yoshida M, Fukunaga K. Dietary Bamboo Charcoal Decreased Visceral Adipose Tissue Weight by Enhancing Fecal Lipid Excretions in Mice with High-Fat Diet-Induced Obesity. Prev Nutr Food Sci 2023; 28:246-254. [PMID: 37842254 PMCID: PMC10567601 DOI: 10.3746/pnf.2023.28.3.246] [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: 03/14/2023] [Revised: 05/31/2023] [Accepted: 07/24/2023] [Indexed: 10/17/2023] Open
Abstract
Bamboo charcoal (BC) powder is prepared from thick bamboo stems via dry distillation and is often used for food coloring. Due to the unique structure of the micropores in bamboo stems, BC powder also serves as an indigestible carrier to prevent the absorption of toxic substances and nutrients from the digestive tract. This study evaluated the health-promoting function of BC, particularly its effects in decreasing visceral adipose tissue in a mouse model with high-fat diet (HFD)-induced obesity. Four-week-old male C57BL/6J mice were divided into three groups and fed either a low-fat (LF) diet (7% fat), HF diet (25% fat), or HF diet with 0.5% BC (HF-BC). After 80 days, the HF-BC diet was found to have decreased epididymal and mesenteric white adipose tissue weights compared to HFD. The inhibition of visceral fat accumulation by BC intake was partly due to enhanced fecal fatty acid excretion induced by its bile acid-binding and pancreatic lipase inhibition. Contrarily, the gut microbiota, known to influence systemic energy metabolism, did not change significantly between the HF and HF-BC groups. These results indicate that dietary BC inhibits visceral fat accumulation, which could reduce obesity development.
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Affiliation(s)
- Koki Sugimoto
- Faculty of Chemistry, Materials, and Bioengineering, Kansai University, Osaka 564-8680, Japan
- Faculty of Food and Nutritional Sciences, Toyo University, Gunma 374-0193, Japan
| | - Taiki Shinagawa
- Faculty of Chemistry, Materials, and Bioengineering, Kansai University, Osaka 564-8680, Japan
| | - Katsuo Kuroki
- Unused Resources R&D, Kandagiko Co., Ltd., Tottori 683-0852, Japan
| | - Saki Toma
- Unused Resources R&D, Kandagiko Co., Ltd., Tottori 683-0852, Japan
| | - Ryota Hosomi
- Faculty of Chemistry, Materials, and Bioengineering, Kansai University, Osaka 564-8680, Japan
| | - Munehiro Yoshida
- Faculty of Chemistry, Materials, and Bioengineering, Kansai University, Osaka 564-8680, Japan
| | - Kenji Fukunaga
- Faculty of Chemistry, Materials, and Bioengineering, Kansai University, Osaka 564-8680, Japan
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23
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Shukla R, Peoples AJ, Ludwig KC, Maity S, Derks MGN, De Benedetti S, Krueger AM, Vermeulen BJA, Harbig T, Lavore F, Kumar R, Honorato RV, Grein F, Nieselt K, Liu Y, Bonvin AMJJ, Baldus M, Kubitscheck U, Breukink E, Achorn C, Nitti A, Schwalen CJ, Spoering AL, Ling LL, Hughes D, Lelli M, Roos WH, Lewis K, Schneider T, Weingarth M. An antibiotic from an uncultured bacterium binds to an immutable target. Cell 2023; 186:4059-4073.e27. [PMID: 37611581 DOI: 10.1016/j.cell.2023.07.038] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Revised: 06/01/2023] [Accepted: 07/28/2023] [Indexed: 08/25/2023]
Abstract
Antimicrobial resistance is a leading mortality factor worldwide. Here, we report the discovery of clovibactin, an antibiotic isolated from uncultured soil bacteria. Clovibactin efficiently kills drug-resistant Gram-positive bacterial pathogens without detectable resistance. Using biochemical assays, solid-state nuclear magnetic resonance, and atomic force microscopy, we dissect its mode of action. Clovibactin blocks cell wall synthesis by targeting pyrophosphate of multiple essential peptidoglycan precursors (C55PP, lipid II, and lipid IIIWTA). Clovibactin uses an unusual hydrophobic interface to tightly wrap around pyrophosphate but bypasses the variable structural elements of precursors, accounting for the lack of resistance. Selective and efficient target binding is achieved by the sequestration of precursors into supramolecular fibrils that only form on bacterial membranes that contain lipid-anchored pyrophosphate groups. This potent antibiotic holds the promise of enabling the design of improved therapeutics that kill bacterial pathogens without resistance development.
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Affiliation(s)
- Rhythm Shukla
- NMR Spectroscopy, Department of Chemistry, Utrecht University, Padualaan 8, 3584 CH Utrecht, the Netherlands; Membrane Biochemistry and Biophysics, Department of Chemistry, Utrecht University, Padualaan 8, 3584 CH Utrecht, the Netherlands
| | | | - Kevin C Ludwig
- Institute for Pharmaceutical Microbiology, University Hospital Bonn, University of Bonn, Bonn, Germany
| | - Sourav Maity
- Moleculaire Biofysica, Zernike Instituut, Rijksuniversiteit Groningen, Nijenborgh 4, 9747 AG Groningen, the Netherlands
| | - Maik G N Derks
- NMR Spectroscopy, Department of Chemistry, Utrecht University, Padualaan 8, 3584 CH Utrecht, the Netherlands; Membrane Biochemistry and Biophysics, Department of Chemistry, Utrecht University, Padualaan 8, 3584 CH Utrecht, the Netherlands
| | - Stefania De Benedetti
- Institute for Pharmaceutical Microbiology, University Hospital Bonn, University of Bonn, Bonn, Germany
| | - Annika M Krueger
- Moleculaire Biofysica, Zernike Instituut, Rijksuniversiteit Groningen, Nijenborgh 4, 9747 AG Groningen, the Netherlands
| | - Bram J A Vermeulen
- NMR Spectroscopy, Department of Chemistry, Utrecht University, Padualaan 8, 3584 CH Utrecht, the Netherlands
| | - Theresa Harbig
- Integrative Transcriptomics, Center for Bioinformatics, University of Tübingen, 72070 Tübingen, Germany
| | - Francesca Lavore
- NMR Spectroscopy, Department of Chemistry, Utrecht University, Padualaan 8, 3584 CH Utrecht, the Netherlands
| | - Raj Kumar
- NMR Spectroscopy, Department of Chemistry, Utrecht University, Padualaan 8, 3584 CH Utrecht, the Netherlands
| | - Rodrigo V Honorato
- NMR Spectroscopy, Department of Chemistry, Utrecht University, Padualaan 8, 3584 CH Utrecht, the Netherlands
| | - Fabian Grein
- Institute for Pharmaceutical Microbiology, University Hospital Bonn, University of Bonn, Bonn, Germany; German Center for Infection Research (DZIF), partner site Bonn-Cologne, Bonn, Germany
| | - Kay Nieselt
- Integrative Transcriptomics, Center for Bioinformatics, University of Tübingen, 72070 Tübingen, Germany
| | - Yangping Liu
- The Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics, School of Pharmacy, Tianjin Medical University, Tianjin 300070, China
| | - Alexandre M J J Bonvin
- NMR Spectroscopy, Department of Chemistry, Utrecht University, Padualaan 8, 3584 CH Utrecht, the Netherlands
| | - Marc Baldus
- NMR Spectroscopy, Department of Chemistry, Utrecht University, Padualaan 8, 3584 CH Utrecht, the Netherlands
| | - Ulrich Kubitscheck
- Clausius-Institute for Physical and Theoretical Chemistry, University of Bonn, Bonn, Germany
| | - Eefjan Breukink
- Membrane Biochemistry and Biophysics, Department of Chemistry, Utrecht University, Padualaan 8, 3584 CH Utrecht, the Netherlands
| | | | - Anthony Nitti
- NovoBiotic Pharmaceuticals, Cambridge, MA 02138, USA
| | | | | | | | - Dallas Hughes
- NovoBiotic Pharmaceuticals, Cambridge, MA 02138, USA
| | - Moreno Lelli
- Magnetic Resonance Center (CERM) and Department of Chemistry "Ugo Schiff", University of Florence, via della Lastruccia 3, Sesto Fiorentino 50019, Italy; Consorzio Interuniversitario Risonanze Magnetiche MetalloProteine (CIRMMP), via Sacconi 6, Sesto Fiorentino 50019, Italy
| | - Wouter H Roos
- Moleculaire Biofysica, Zernike Instituut, Rijksuniversiteit Groningen, Nijenborgh 4, 9747 AG Groningen, the Netherlands
| | - Kim Lewis
- Antimicrobial Discovery Center, Northeastern University, Department of Biology, Boston, MA 02115, USA
| | - Tanja Schneider
- Institute for Pharmaceutical Microbiology, University Hospital Bonn, University of Bonn, Bonn, Germany; German Center for Infection Research (DZIF), partner site Bonn-Cologne, Bonn, Germany.
| | - Markus Weingarth
- NMR Spectroscopy, Department of Chemistry, Utrecht University, Padualaan 8, 3584 CH Utrecht, the Netherlands.
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24
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Shukla R, Peoples AJ, Ludwig KC, Maity S, Derks MG, de Benedetti S, Krueger AM, Vermeulen BJ, Lavore F, Honorato RV, Grein F, Bonvin A, Kubitscheck U, Breukink E, Achorn C, Nitti A, Schwalen CJ, Spoering AL, Ling LL, Hughes D, Lelli M, Roos WH, Lewis K, Schneider T, Weingarth M. A new antibiotic from an uncultured bacterium binds to an immutable target. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.05.15.540765. [PMID: 37292624 PMCID: PMC10245560 DOI: 10.1101/2023.05.15.540765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Antimicrobial resistance is a leading mortality factor worldwide. Here we report the discovery of clovibactin, a new antibiotic, isolated from uncultured soil bacteria. Clovibactin efficiently kills drug-resistant bacterial pathogens without detectable resistance. Using biochemical assays, solid-state NMR, and atomic force microscopy, we dissect its mode of action. Clovibactin blocks cell wall synthesis by targeting pyrophosphate of multiple essential peptidoglycan precursors (C 55 PP, Lipid II, Lipid WTA ). Clovibactin uses an unusual hydrophobic interface to tightly wrap around pyrophosphate, but bypasses the variable structural elements of precursors, accounting for the lack of resistance. Selective and efficient target binding is achieved by the irreversible sequestration of precursors into supramolecular fibrils that only form on bacterial membranes that contain lipid-anchored pyrophosphate groups. Uncultured bacteria offer a rich reservoir of antibiotics with new mechanisms of action that could replenish the antimicrobial discovery pipeline.
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Affiliation(s)
- Rhythm Shukla
- NMR Spectroscopy, Department of Chemistry, Utrecht University, Padualaan 8, 3584 CH Utrecht, The Netherlands
- Membrane Biochemistry and Biophysics, Department of Chemistry, Utrecht University, Padualaan 8, 3584 CH, Utrecht, The Netherlands
| | | | - Kevin C. Ludwig
- Institute for Pharmaceutical Microbiology, University Hospital Bonn, University of Bonn, Bonn, Germany
| | - Sourav Maity
- Moleculaire Biofysica, Zernike Instituut, Rijksuniversiteit Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - Maik G.N. Derks
- NMR Spectroscopy, Department of Chemistry, Utrecht University, Padualaan 8, 3584 CH Utrecht, The Netherlands
- Membrane Biochemistry and Biophysics, Department of Chemistry, Utrecht University, Padualaan 8, 3584 CH, Utrecht, The Netherlands
| | - Stefania de Benedetti
- Institute for Pharmaceutical Microbiology, University Hospital Bonn, University of Bonn, Bonn, Germany
| | - Annika M Krueger
- Institute for Physical and Theoretical Chemistry, University of Bonn, Bonn, Germany
| | - Bram J.A. Vermeulen
- NMR Spectroscopy, Department of Chemistry, Utrecht University, Padualaan 8, 3584 CH Utrecht, The Netherlands
| | - Francesca Lavore
- NMR Spectroscopy, Department of Chemistry, Utrecht University, Padualaan 8, 3584 CH Utrecht, The Netherlands
| | - Rodrigo V. Honorato
- NMR Spectroscopy, Department of Chemistry, Utrecht University, Padualaan 8, 3584 CH Utrecht, The Netherlands
| | - Fabian Grein
- Institute for Pharmaceutical Microbiology, University Hospital Bonn, University of Bonn, Bonn, Germany
- German Center for Infection Research (DZIF), partner site Bonn-Cologne, Bonn, Germany
| | - Alexandre Bonvin
- NMR Spectroscopy, Department of Chemistry, Utrecht University, Padualaan 8, 3584 CH Utrecht, The Netherlands
| | - Ulrich Kubitscheck
- Institute for Physical and Theoretical Chemistry, University of Bonn, Bonn, Germany
| | - Eefjan Breukink
- Membrane Biochemistry and Biophysics, Department of Chemistry, Utrecht University, Padualaan 8, 3584 CH, Utrecht, The Netherlands
| | | | - Anthony Nitti
- NovoBiotic Pharmaceuticals, Cambridge, Massachusetts 02138, USA
| | | | - Amy L. Spoering
- NovoBiotic Pharmaceuticals, Cambridge, Massachusetts 02138, USA
| | - Losee Lucy Ling
- NovoBiotic Pharmaceuticals, Cambridge, Massachusetts 02138, USA
| | - Dallas Hughes
- NovoBiotic Pharmaceuticals, Cambridge, Massachusetts 02138, USA
| | - Moreno Lelli
- Magnetic Resonance Center (CERM) and Department of Chemistry “Ugo Schiff”, University of Florence, via Sacconi 6, Sesto Fiorentino, 50019 Italy
- Consorzio Interuniversitario Risonanze Magnetiche MetalloProteine (CIRMMP), via Sacconi 6, Sesto Fiorentino, 50019 Italy
| | - Wouter H. Roos
- Moleculaire Biofysica, Zernike Instituut, Rijksuniversiteit Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - Kim Lewis
- Antimicrobial Discovery Center, Northeastern University, Department of Biology, Boston, Massachusetts 02115, USA
| | - Tanja Schneider
- Institute for Pharmaceutical Microbiology, University Hospital Bonn, University of Bonn, Bonn, Germany
| | - Markus Weingarth
- NMR Spectroscopy, Department of Chemistry, Utrecht University, Padualaan 8, 3584 CH Utrecht, The Netherlands
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25
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Feo-Lucas L, Godio C, Minguito de la Escalera M, Alvarez-Ladrón N, Villarrubia LH, Vega-Pérez A, González-Cintado L, Domínguez-Andrés J, García-Fojeda B, Montero-Fernández C, Casals C, Autilio C, Pérez-Gil J, Crainiciuc G, Hidalgo A, López-Bravo M, Ardavín C. Airway allergy causes alveolar macrophage death, profound alveolar disorganization and surfactant dysfunction. Front Immunol 2023; 14:1125984. [PMID: 37234176 PMCID: PMC10206250 DOI: 10.3389/fimmu.2023.1125984] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Accepted: 04/20/2023] [Indexed: 05/27/2023] Open
Abstract
Respiratory disorders caused by allergy have been associated to bronchiolar inflammation leading to life-threatening airway narrowing. However, whether airway allergy causes alveolar dysfunction contributing to the pathology of allergic asthma remains unaddressed. To explore whether airway allergy causes alveolar dysfunction that might contribute to the pathology of allergic asthma, alveolar structural and functional alterations were analyzed during house dust mite (HDM)-induced airway allergy in mice, by flow cytometry, light and electron microscopy, monocyte transfer experiments, assessment of intra-alveolarly-located cells, analysis of alveolar macrophage regeneration in Cx3cr1 cre:R26-yfp chimeras, analysis of surfactant-associated proteins, and study of lung surfactant biophysical properties by captive bubble surfactometry. Our results demonstrate that HDM-induced airway allergic reactions caused severe alveolar dysfunction, leading to alveolar macrophage death, pneumocyte hypertrophy and surfactant dysfunction. SP-B/C proteins were reduced in allergic lung surfactant, that displayed a reduced efficiency to form surface-active films, increasing the risk of atelectasis. Original alveolar macrophages were replaced by monocyte-derived alveolar macrophages, that persisted at least two months after the resolution of allergy. Monocyte to alveolar macrophage transition occurred through an intermediate stage of pre-alveolar macrophage and was paralleled with translocation into the alveolar space, Siglec-F upregulation, and downregulation of CX3CR1. These data support that the severe respiratory disorders caused by asthmatic reactions not only result from bronchiolar inflammation, but additionally from alveolar dysfunction compromising an efficient gas exchange.
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Affiliation(s)
- Lidia Feo-Lucas
- Departamento de Inmunología y Oncología, Centro Nacional de Biotecnología/ Consejo Superior de Investigaciones Científicas (CSIC), Madrid, Spain
| | - Cristina Godio
- Departamento de Inmunología y Oncología, Centro Nacional de Biotecnología/ Consejo Superior de Investigaciones Científicas (CSIC), Madrid, Spain
| | - María Minguito de la Escalera
- Departamento de Inmunología y Oncología, Centro Nacional de Biotecnología/ Consejo Superior de Investigaciones Científicas (CSIC), Madrid, Spain
| | - Natalia Alvarez-Ladrón
- Departamento de Inmunología y Oncología, Centro Nacional de Biotecnología/ Consejo Superior de Investigaciones Científicas (CSIC), Madrid, Spain
| | - Laura H. Villarrubia
- Departamento de Inmunología y Oncología, Centro Nacional de Biotecnología/ Consejo Superior de Investigaciones Científicas (CSIC), Madrid, Spain
| | - Adrián Vega-Pérez
- Departamento de Inmunología y Oncología, Centro Nacional de Biotecnología/ Consejo Superior de Investigaciones Científicas (CSIC), Madrid, Spain
| | - Leticia González-Cintado
- Departamento de Inmunología y Oncología, Centro Nacional de Biotecnología/ Consejo Superior de Investigaciones Científicas (CSIC), Madrid, Spain
| | - Jorge Domínguez-Andrés
- Departamento de Inmunología y Oncología, Centro Nacional de Biotecnología/ Consejo Superior de Investigaciones Científicas (CSIC), Madrid, Spain
| | - Belén García-Fojeda
- Departamento de Bioquímica y Biología Molecular, Facultad de Biología, Universidad Complutense, Madrid, Spain
| | - Carlos Montero-Fernández
- Departamento de Bioquímica y Biología Molecular, Facultad de Biología, Universidad Complutense, Madrid, Spain
| | - Cristina Casals
- Departamento de Bioquímica y Biología Molecular, Facultad de Biología, Universidad Complutense, Madrid, Spain
| | - Chiara Autilio
- Departamento de Bioquímica y Biología Molecular, Facultad de Biología, Universidad Complutense, Madrid, Spain
- Instituto de Investigación Sanitaria Hospital 12 de Octubre i+12, Madrid, Spain
| | - Jesús Pérez-Gil
- Departamento de Bioquímica y Biología Molecular, Facultad de Biología, Universidad Complutense, Madrid, Spain
- Instituto de Investigación Sanitaria Hospital 12 de Octubre i+12, Madrid, Spain
| | | | - Andrés Hidalgo
- Centro Nacional de Investigaciones Cardiovaculares Carlos III, Madrid, Spain
| | - María López-Bravo
- Departamento de Inmunología y Oncología, Centro Nacional de Biotecnología/ Consejo Superior de Investigaciones Científicas (CSIC), Madrid, Spain
| | - Carlos Ardavín
- Departamento de Inmunología y Oncología, Centro Nacional de Biotecnología/ Consejo Superior de Investigaciones Científicas (CSIC), Madrid, Spain
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26
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Pinho JO, Matias M, Godinho-Santos A, Amaral JD, Mendes E, Jesus Perry M, Paula Francisco A, Rodrigues CMP, Manuela Gaspar M. A step forward on the in vitro and in vivo assessment of a novel nanomedicine against melanoma. Int J Pharm 2023; 640:123011. [PMID: 37146952 DOI: 10.1016/j.ijpharm.2023.123011] [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: 12/27/2022] [Revised: 04/11/2023] [Accepted: 04/27/2023] [Indexed: 05/07/2023]
Abstract
Melanoma is the most aggressive form of skin cancer, with increasing incidence and mortality rates. To overcome current treatment limitations, a hybrid molecule (HM) combining a triazene and a ʟ-tyrosine analogue, was recently synthesized, incorporated in long blood circulating liposomes (LIP HM) and validated in an immunocompetent melanoma model. The present work constitutes a step forward in the therapeutic assessment of HM formulations. Here, human melanoma cells, A375 and MNT-1, were used and dacarbazine (DTIC), a triazene drug clinically available as first-line treatment for melanoma, constituted the positive control. In cell cycle analysis, A375 cells, after 24-h incubation with HM (60 μM) and DTIC (70 μM), resulted in a 1.2 fold increase (related to control) in the percentage of cells in G0/G1 phase. The therapeutic activity was evaluated in a human murine melanoma model (subcutaneously injected with A375 cells) to most closely resemble the human pathology. Animals treated with LIP HM exhibited the highest antimelanoma effect resulting in a 6-, 5- and 4-fold reduction on tumor volume compared to negative control, Free HM and DTIC groups, respectively. No toxic side effects were detected. Overall, these results constitute another step forward in the validation of the antimelanoma activity of LIP HM, using a murine model that more accurately simulates the pathology that occurs in human patients.
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Affiliation(s)
- Jacinta O Pinho
- Research Institute for Medicines, iMed.ULisboa, Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal.
| | - Mariana Matias
- CICS-UBI-Health Sciences Research Centre, University of Beira Interior, 6200-506 Covilhã, Portugal.
| | - Ana Godinho-Santos
- Research Institute for Medicines, iMed.ULisboa, Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal.
| | - Joana D Amaral
- Research Institute for Medicines, iMed.ULisboa, Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal.
| | - Eduarda Mendes
- Research Institute for Medicines, iMed.ULisboa, Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal.
| | - Maria Jesus Perry
- Research Institute for Medicines, iMed.ULisboa, Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal.
| | - Ana Paula Francisco
- Research Institute for Medicines, iMed.ULisboa, Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal.
| | - Cecília M P Rodrigues
- Research Institute for Medicines, iMed.ULisboa, Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal.
| | - M Manuela Gaspar
- Research Institute for Medicines, iMed.ULisboa, Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal.
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27
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Zhen C, Chen XK, Ge XF, Liu WZ. Streptomonospora mangrovi sp. nov., isolated from mangrove soil showing similar metabolic capabilities, but distinct secondary metabolites profiles. Arch Microbiol 2023; 205:148. [PMID: 36991151 DOI: 10.1007/s00203-023-03501-3] [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: 01/04/2023] [Revised: 03/20/2023] [Accepted: 03/22/2023] [Indexed: 03/31/2023]
Abstract
A novel actinomycete, designated strain S1-112 T, was isolated from a mangrove soil sample from Hainan, China, and characterized using a polyphasic approach. Strain S1-112 T showed the highest similarity of the 16S rRNA gene to Streptomonospora nanhaiensis 12A09T (99.24%). Their close relationship was further supported by phylogenetic analyses, which placed these two strains within a stable clade. The highest values of digital DNA-DNA hybridization (dDDH, 41.4%) and average nucleotide identity (ANI, 90.55%) were detected between strain S1-112 T and Streptomonospora halotolerans NEAU-Jh2-17 T. Genotypic and phenotypic characteristics demonstrated that strain S1-112 T could be distinguished from its closely related relatives. We also profiled the pan-genome and metabolic features of genomic assemblies of strains belonging to the genus Streptomonospora, indicating similar functional capacities and metabolic activities. However, all of these strains showed promising potential for producing diverse types of secondary metabolites. In conclusion, strain S1-112 T represents a novel species of the genus Streptomonospora, for which the name Streptomonospora mangrovi sp. nov. was proposed. The type strain is S1-112 T (= JCM 34292 T).
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Affiliation(s)
- Cheng Zhen
- School of Food and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, People's Republic of China
| | - Xin-Kai Chen
- School of Food and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, People's Republic of China
| | - Xian-Feng Ge
- School of Food and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, People's Republic of China
| | - Wen-Zheng Liu
- School of Food and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, People's Republic of China.
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28
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Guillot AJ, Martínez-Navarrete M, Garrigues TM, Melero A. Skin drug delivery using lipid vesicles: A starting guideline for their development. J Control Release 2023; 355:624-654. [PMID: 36775245 DOI: 10.1016/j.jconrel.2023.02.006] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 02/02/2023] [Accepted: 02/02/2023] [Indexed: 02/14/2023]
Abstract
Lipid vesicles can provide a cost-effective enhancement of skin drug absorption when vesicle production process is optimised. It is an important challenge to design the ideal vesicle, since their properties and features are related, as changes in one affect the others. Here, we review the main components, preparation and characterization methods commonly used, and the key properties that lead to highly efficient vesicles for transdermal drug delivery purposes. We stand by size, deformability degree and drug loading, as the most important vesicle features that determine the further transdermal drug absorption. The interest in this technology is increasing, as demonstrated by the exponential growth of publications on the topic. Although long-term preservation and scalability issues have limited the commercialization of lipid vesicle products, freeze-drying and modern escalation methods overcome these difficulties, thus predicting a higher use of these technologies in the market and clinical practice.
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Affiliation(s)
- Antonio José Guillot
- Department of Pharmacy and Pharmaceutical Technology and Parasitology, University of Valencia, Avda. Vicente A. Estelles SN, Burjassot (Valencia), Spain
| | - Miquel Martínez-Navarrete
- Department of Pharmacy and Pharmaceutical Technology and Parasitology, University of Valencia, Avda. Vicente A. Estelles SN, Burjassot (Valencia), Spain
| | - Teresa M Garrigues
- Department of Pharmacy and Pharmaceutical Technology and Parasitology, University of Valencia, Avda. Vicente A. Estelles SN, Burjassot (Valencia), Spain
| | - Ana Melero
- Department of Pharmacy and Pharmaceutical Technology and Parasitology, University of Valencia, Avda. Vicente A. Estelles SN, Burjassot (Valencia), Spain.
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29
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van Kerkhof P, Kralj T, Spanevello F, van Bloois L, Jordens I, van der Vaart J, Jamieson C, Merenda A, Mastrobattista E, Maurice MM. RSPO3 Furin domain-conjugated liposomes for selective drug delivery to LGR5-high cells. J Control Release 2023; 356:72-83. [PMID: 36813038 DOI: 10.1016/j.jconrel.2023.02.025] [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: 09/02/2022] [Revised: 02/15/2023] [Accepted: 02/17/2023] [Indexed: 02/24/2023]
Abstract
The transmembrane receptor LGR5 potentiates Wnt/β-catenin signaling by binding both secreted R-spondin (RSPOs) and the Wnt tumor suppressors RNF43/ZNRF3, directing clearance of RNF43/ZNRF3 from the cell surface. Besides being widely used as a stem cell marker in various tissues, LGR5 is overexpressed in many types of malignancies, including colorectal cancer. Its expression characterizes a subpopulation of cancer cells that play a crucial role in tumor initiation, progression and cancer relapse, known as cancer stem cells (CSCs). For this reason, ongoing efforts are aimed at eradicating LGR5-positive CSCs. Here, we engineered liposomes decorated with different RSPO proteins to specifically detect and target LGR5-positive cells. Using fluorescence-loaded liposomes, we show that conjugation of full-length RSPO1 to the liposomal surface mediates aspecific, LGR5-independent cellular uptake, largely mediated by heparan sulfate proteoglycan binding. By contrast, liposomes decorated only with the Furin (FuFu) domains of RSPO3 are taken up by cells in a highly specific, LGR5-dependent manner. Moreover, encapsulating doxorubicin in FuFuRSPO3 liposomes allowed us to selectively inhibit the growth of LGR5-high cells. Thus, FuFuRSPO3-coated liposomes allow for the selective detection and ablation of LGR5-high cells, providing a potential drug delivery system for LGR5-targeted anti-cancer strategies.
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Affiliation(s)
- Peter van Kerkhof
- Oncode Institute and Centre for Molecular Medicine, University Medical Centre Utrecht, Utrecht, the Netherlands
| | - Tomica Kralj
- Oncode Institute and Centre for Molecular Medicine, University Medical Centre Utrecht, Utrecht, the Netherlands
| | - Francesca Spanevello
- Oncode Institute and Centre for Molecular Medicine, University Medical Centre Utrecht, Utrecht, the Netherlands
| | - Louis van Bloois
- Utrecht Institute for Pharmaceutical Sciences (UIPS), Utrecht University, Utrecht, the Netherlands
| | - Ingrid Jordens
- Oncode Institute and Centre for Molecular Medicine, University Medical Centre Utrecht, Utrecht, the Netherlands
| | - Jelte van der Vaart
- Oncode Institute and Centre for Molecular Medicine, University Medical Centre Utrecht, Utrecht, the Netherlands
| | - Cara Jamieson
- Oncode Institute and Centre for Molecular Medicine, University Medical Centre Utrecht, Utrecht, the Netherlands
| | - Alessandra Merenda
- Oncode Institute and Centre for Molecular Medicine, University Medical Centre Utrecht, Utrecht, the Netherlands
| | - Enrico Mastrobattista
- Utrecht Institute for Pharmaceutical Sciences (UIPS), Utrecht University, Utrecht, the Netherlands.
| | - Madelon M Maurice
- Oncode Institute and Centre for Molecular Medicine, University Medical Centre Utrecht, Utrecht, the Netherlands.
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30
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Spanedda MV, De Giorgi M, Heurtault B, Kichler A, Bourel-Bonnet L, Frisch B. Click Chemistry for Liposome Surface Modification. Methods Mol Biol 2023; 2622:173-189. [PMID: 36781760 DOI: 10.1007/978-1-0716-2954-3_15] [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: 02/15/2023]
Abstract
Click chemistry, and particularly azide-alkyne cycloaddition, represents one of the principal bioconjugation strategies that can be used to conveniently attach various ligands to the surface of preformed liposomes. This efficient and chemoselective reaction involves a Cu(I)-catalyzed azide-alkyne cycloaddition which can be performed under mild experimental conditions in aqueous media. Here we describe the application of a model click reaction to the conjugation, in a single step, of unprotected α-1-thiomannosyl ligands, functionalized with an azide group, to liposomes containing a terminal alkyne-functionalized lipid anchor. Excellent coupling yields were obtained in the presence of bathophenanthrolinedisulphonate, a water-soluble copper-ion chelator, acting as catalyst. No vesicle leakage was triggered by this conjugation reaction, and the coupled mannose ligands were exposed at the surface of the liposomes. The major limitation of Cu(I)-catalyzed click reactions is that this type of conjugation is restricted to liposomes made of saturated (phospho)lipids. To circumvent this constraint, an example of alternate copper-free azide-alkyne click reaction has been developed, and it was applied to the anchoring of a biotin moiety that was fully functional and could be therefore quantified. Molecular tools and results are presented here.
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Affiliation(s)
- Maria Vittoria Spanedda
- Laboratoire de Conception et Applications des Molécules Bioactives, UMR 7199 CNRS/Université de Strasbourg, équipe 3BIO, Faculté de Pharmacie, Illkirch, France
| | - Marcella De Giorgi
- Laboratoire de Conception et Applications des Molécules Bioactives, UMR 7199 CNRS/Université de Strasbourg, équipe 3BIO, Faculté de Pharmacie, Illkirch, France
| | - Béatrice Heurtault
- Laboratoire de Conception et Applications des Molécules Bioactives, UMR 7199 CNRS/Université de Strasbourg, équipe 3BIO, Faculté de Pharmacie, Illkirch, France
| | - Antoine Kichler
- Laboratoire de Conception et Applications des Molécules Bioactives, UMR 7199 CNRS/Université de Strasbourg, équipe 3BIO, Faculté de Pharmacie, Illkirch, France
| | - Line Bourel-Bonnet
- Laboratoire de Conception et Applications des Molécules Bioactives, UMR 7199 CNRS/Université de Strasbourg, équipe 3BIO, Faculté de Pharmacie, Illkirch, France
| | - Benoît Frisch
- Laboratoire de Conception et Applications des Molécules Bioactives, UMR 7199 CNRS/Université de Strasbourg, équipe 3BIO, Faculté de Pharmacie, Illkirch, France.
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31
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Bernasqué A, Cario M, Krisa S, Lecomte S, Faure C. Transport of hydrocortisone in targeted layers of the skin by multi-lamellar liposomes. J Liposome Res 2023:1-14. [PMID: 36779686 DOI: 10.1080/08982104.2023.2177309] [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: 02/14/2023]
Abstract
Hydrocortisone (HyC), a hydrophobic pharmaceutical active, was encapsulated in multi-lamellar liposomes (MLLs) composed of P100, a mixture of phospholipids, and Tween®80. Three different HyC-loaded formulations were designed to target the stratum corneum, the living epidermis and the hypodermis. The impact of encapsulation on their size, elasticity and zeta potential, the three key factors controlling MLLs skin penetration, was studied. Raman mapping of phospholipids and HyC allowed the localisation of both components inside an artificial skin, Strat-M®, demonstrating the efficiency of the targeting. Percutaneous permeation profiles through excised human skin were performed over 48 h, supporting results on artificial skin. Their modelling revealed that HyC encapsulated in MLLs, designed to target the stratum corneum and living epidermis, exhibited a non-Fickian diffusion process. In contrast, a Fickian diffusion was found for HyC administered in solution, in a pharmaceutical cream and in transdermal MLLs. These results allowed us to propose a mechanism of interaction between HyC-containing MLLs and the skin.
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Affiliation(s)
- Antoine Bernasqué
- CBMN, Université de Bordeaux, CNRS, Bordeaux INP, Pessac, France.,U1312-BRIC, Inserm, Université de Bordeaux, National Reference Center for Rare Skin Diseases, Bordeaux, France
| | - Muriel Cario
- U1312-BRIC, Inserm, Université de Bordeaux, National Reference Center for Rare Skin Diseases, Bordeaux, France
| | - Stéphanie Krisa
- INRAE, Bordeaux INP, UR oenologie, Université de Bordeaux, Villenave d'Ornon, France
| | - Sophie Lecomte
- CBMN, Université de Bordeaux, CNRS, Bordeaux INP, Pessac, France
| | - Chrystel Faure
- CBMN, Université de Bordeaux, CNRS, Bordeaux INP, Pessac, France
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32
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Elenbaas BO, Kremsreiter SM, Khemtemourian L, Killian JA, Sinnige T. Fibril elongation by human islet amyloid polypeptide is the main event linking aggregation to membrane damage. BBA ADVANCES 2023; 3:100083. [PMID: 37082256 PMCID: PMC10074975 DOI: 10.1016/j.bbadva.2023.100083] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023] Open
Abstract
The aggregation of human islet amyloid polypeptide (hIAPP) is linked to the death of pancreatic β-cells in type II diabetes. The process of fibril formation by hIAPP is thought to cause membrane damage, but the precise mechanisms are still unclear. Previously, we showed that the aggregation of hIAPP in the presence of membranes containing anionic lipids is dominated by secondary nucleation events, which occur at the interface between existing fibrils and the membrane surface. Here, we used vesicles with different lipid composition to explore the connection between hIAPP aggregation and vesicle leakage. We found that different anionic lipids promote hIAPP aggregation to the same extent, whereas remarkably stochastic behaviour is observed on purely zwitterionic membranes. Vesicle leakage induced by hIAPP consists of two distinct phases for any of the used membrane compositions: (i) an initial phase in which hIAPP binding causes a certain level of leakage that is strongly dependent on osmotic conditions, membrane composition and the used dye, and (ii) a main leakage event that we attribute to elongation of hIAPP fibrils, based on seeded experiments. Altogether, our results shed more light on the relationship between hIAPP fibril formation and membrane damage, and strongly suggest that oligomeric intermediates do not considerably contribute to vesicle leakage.
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Affiliation(s)
- Barend O.W. Elenbaas
- Membrane Biochemistry and Biophysics, Bijvoet Centre for Biomolecular Research, Utrecht University, Padualaan 8, 3584 CH, Utrecht, the Netherlands
| | - Stefanie M. Kremsreiter
- Membrane Biochemistry and Biophysics, Bijvoet Centre for Biomolecular Research, Utrecht University, Padualaan 8, 3584 CH, Utrecht, the Netherlands
| | - Lucie Khemtemourian
- Institute of Chemistry & Biology of Membranes & Nanoobjects (CBMN), CNRS UMR5248, University of Bordeaux, Bordeaux INP, allée Geoffroy St-Hilaire, 33600, Pessac, France
| | - J. Antoinette Killian
- Membrane Biochemistry and Biophysics, Bijvoet Centre for Biomolecular Research, Utrecht University, Padualaan 8, 3584 CH, Utrecht, the Netherlands
| | - Tessa Sinnige
- Membrane Biochemistry and Biophysics, Bijvoet Centre for Biomolecular Research, Utrecht University, Padualaan 8, 3584 CH, Utrecht, the Netherlands
- Corresponding author.
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Pedrera L, Ros U, Fanani ML, Lanio ME, Epand RM, García-Sáez AJ, Álvarez C. The Important Role of Membrane Fluidity on the Lytic Mechanism of the α-Pore-Forming Toxin Sticholysin I. Toxins (Basel) 2023; 15:80. [PMID: 36668899 PMCID: PMC9865829 DOI: 10.3390/toxins15010080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 01/05/2023] [Accepted: 01/07/2023] [Indexed: 01/19/2023] Open
Abstract
Actinoporins have emerged as archetypal α-pore-forming toxins (PFTs) that promote the formation of pores in membranes upon oligomerization and insertion of an α-helix pore-forming domain in the bilayer. These proteins have been used as active components of immunotoxins, therefore, understanding their lytic mechanism is crucial for developing this and other applications. However, the mechanism of how the biophysical properties of the membrane modulate the properties of pores generated by actinoporins remains unclear. Here we studied the effect of membrane fluidity on the permeabilizing activity of sticholysin I (St I), a toxin that belongs to the actinoporins family of α-PFTs. To modulate membrane fluidity we used vesicles made of an equimolar mixture of phosphatidylcholine (PC) and egg sphingomyelin (eggSM), in which PC contained fatty acids of different acyl chain lengths and degrees of unsaturation. Our detailed single-vesicle analysis revealed that when membrane fluidity is high, most of the vesicles are partially permeabilized in a graded manner. In contrast, more rigid membranes can be either completely permeabilized or not, indicating an all-or-none mechanism. Altogether, our results reveal that St I pores can be heterogeneous in size and stability, and that these properties depend on the fluid state of the lipid bilayer. We propose that membrane fluidity at different regions of cellular membranes is a key factor to modulate the activity of the actinoporins, which has implications for the design of different therapeutic strategies based on their lytic action.
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Affiliation(s)
- Lohans Pedrera
- Centro de Estudio de Proteínas, Facultad de Biología, Universidad de La Habana, La Habana CP 10400, Cuba
- Institute for Genetics and CECAD Cluster of Excellence, University of Cologne, Joseph-Stelzmann-Straße 26, 50931 Cologne, Germany
| | - Uris Ros
- Centro de Estudio de Proteínas, Facultad de Biología, Universidad de La Habana, La Habana CP 10400, Cuba
- Institute for Genetics and CECAD Cluster of Excellence, University of Cologne, Joseph-Stelzmann-Straße 26, 50931 Cologne, Germany
| | - Maria Laura Fanani
- Departamento de Química Biológica Ranwel Caputto, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba X5000HUA, Argentina
- Centro de Investigaciones en Química Biológica de Córdoba (CIQUIBIC), Facultad de Ciencias Químicas-CONICET, Córdoba X5000HUA, Argentina
| | - María E. Lanio
- Centro de Estudio de Proteínas, Facultad de Biología, Universidad de La Habana, La Habana CP 10400, Cuba
| | - Richard M. Epand
- Department of Biochemistry and Biomedical Sciences, Faculty of Health Sciences, McMaster University, Hamilton, ON L8S 4K1, Canada
| | - Ana J. García-Sáez
- Institute for Genetics and CECAD Cluster of Excellence, University of Cologne, Joseph-Stelzmann-Straße 26, 50931 Cologne, Germany
| | - Carlos Álvarez
- Centro de Estudio de Proteínas, Facultad de Biología, Universidad de La Habana, La Habana CP 10400, Cuba
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Hervis YP, Valle A, Canet L, Rodríguez A, Lanio ME, Alvarez C, Steinhoff HJ, Pazos IF. Cys mutants as tools to study the oligomerization of the pore-forming toxin sticholysin I. Toxicon 2023; 222:106994. [PMID: 36529153 DOI: 10.1016/j.toxicon.2022.106994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 12/08/2022] [Accepted: 12/09/2022] [Indexed: 12/23/2022]
Abstract
Sticholysin I (StI) is a water-soluble protein with the ability to bind membranes where it oligomerizes and forms pores leading to cell death. Understanding the assembly property of this protein may be valuable for designing potential biotechnological tools, such as stable or structurally defined nanopores. In order to get insights into the stabilization of StI oligomers by disulfide bonds, we designed and characterized single and double cysteine mutants at the oligomerization interface. The oligomer formation was induced in the presence of lipid membranes and visualized by SDS-PAGE. The contribution of the oligomeric structures to the membrane binding and pore-forming capacities of StI was assessed. Single and double cysteine introduction at the protein-protein oligomerization interface does not considerably affect the conformation and function of the monomeric protein. In the presence of membranes, a cysteine double mutation at positions 15 and 59 favored formation of different size oligomers stabilized by disulfide bonds. The results of this work highlight the relevance of these positions (15 and 59) to be considered for developing biosensors based on nanopores from StI.
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Affiliation(s)
- Yadira P Hervis
- Center for Protein Studies/Department of Biochemistry, Faculty of Biology, University of Havana, Havana, ZIP 10400, Cuba.
| | - Aisel Valle
- Center for Protein Studies/Department of Biochemistry, Faculty of Biology, University of Havana, Havana, ZIP 10400, Cuba.
| | - Liem Canet
- Center for Protein Studies/Department of Biochemistry, Faculty of Biology, University of Havana, Havana, ZIP 10400, Cuba.
| | | | - Maria E Lanio
- Center for Protein Studies/Department of Biochemistry, Faculty of Biology, University of Havana, Havana, ZIP 10400, Cuba.
| | - Carlos Alvarez
- Center for Protein Studies/Department of Biochemistry, Faculty of Biology, University of Havana, Havana, ZIP 10400, Cuba.
| | - Heinz J Steinhoff
- Department of Physics, University of Osnabrueck, Osnabrueck, 49069, Germany.
| | - Isabel F Pazos
- Center for Protein Studies/Department of Biochemistry, Faculty of Biology, University of Havana, Havana, ZIP 10400, Cuba.
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Panina IS, Balandin SV, Tsarev AV, Chugunov AO, Tagaev AA, Finkina EI, Antoshina DV, Sheremeteva EV, Paramonov AS, Rickmeyer J, Bierbaum G, Efremov RG, Shenkarev ZO, Ovchinnikova TV. Specific Binding of the α-Component of the Lantibiotic Lichenicidin to the Peptidoglycan Precursor Lipid II Predetermines Its Antimicrobial Activity. Int J Mol Sci 2023; 24:ijms24021332. [PMID: 36674846 PMCID: PMC9863751 DOI: 10.3390/ijms24021332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Revised: 12/21/2022] [Accepted: 01/06/2023] [Indexed: 01/12/2023] Open
Abstract
To date, a number of lantibiotics have been shown to use lipid II-a highly conserved peptidoglycan precursor in the cytoplasmic membrane of bacteria-as their molecular target. The α-component (Lchα) of the two-component lantibiotic lichenicidin, previously isolated from the Bacillus licheniformis VK21 strain, seems to contain two putative lipid II binding sites in its N-terminal and C-terminal domains. Using NMR spectroscopy in DPC micelles, we obtained convincing evidence that the C-terminal mersacidin-like site is involved in the interaction with lipid II. These data were confirmed by the MD simulations. The contact area of lipid II includes pyrophosphate and disaccharide residues along with the first isoprene units of bactoprenol. MD also showed the potential for the formation of a stable N-terminal nisin-like complex; however, the conditions necessary for its implementation in vitro remain unknown. Overall, our results clarify the picture of two component lantibiotics mechanism of antimicrobial action.
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Affiliation(s)
- Irina S. Panina
- M.M. Shemyakin and Yu.A. Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 117997 Moscow, Russia
| | - Sergey V. Balandin
- M.M. Shemyakin and Yu.A. Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 117997 Moscow, Russia
- Correspondence: ; Tel.: +7-495-335-0900
| | - Andrey V. Tsarev
- M.M. Shemyakin and Yu.A. Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 117997 Moscow, Russia
- Moscow Institute of Physics and Technology, 141700 Dolgoprudny, Russia
| | - Anton O. Chugunov
- M.M. Shemyakin and Yu.A. Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 117997 Moscow, Russia
- Moscow Institute of Physics and Technology, 141700 Dolgoprudny, Russia
| | - Andrey A. Tagaev
- M.M. Shemyakin and Yu.A. Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 117997 Moscow, Russia
| | - Ekaterina I. Finkina
- M.M. Shemyakin and Yu.A. Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 117997 Moscow, Russia
| | - Daria V. Antoshina
- M.M. Shemyakin and Yu.A. Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 117997 Moscow, Russia
| | - Elvira V. Sheremeteva
- M.M. Shemyakin and Yu.A. Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 117997 Moscow, Russia
| | - Alexander S. Paramonov
- M.M. Shemyakin and Yu.A. Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 117997 Moscow, Russia
| | - Jasmin Rickmeyer
- Institute of Medical Microbiology, Immunology and Parasitology, Medical Faculty, University of Bonn, 53117 Bonn, Germany
| | - Gabriele Bierbaum
- Institute of Medical Microbiology, Immunology and Parasitology, Medical Faculty, University of Bonn, 53117 Bonn, Germany
| | - Roman G. Efremov
- M.M. Shemyakin and Yu.A. Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 117997 Moscow, Russia
- Moscow Institute of Physics and Technology, 141700 Dolgoprudny, Russia
- Department of Applied Mathematics, National Research University Higher School of Economics, 101000 Moscow, Russia
| | - Zakhar O. Shenkarev
- M.M. Shemyakin and Yu.A. Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 117997 Moscow, Russia
- Moscow Institute of Physics and Technology, 141700 Dolgoprudny, Russia
| | - Tatiana V. Ovchinnikova
- M.M. Shemyakin and Yu.A. Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 117997 Moscow, Russia
- Moscow Institute of Physics and Technology, 141700 Dolgoprudny, Russia
- Department of Bioorganic Chemistry, Faculty of Biology, Lomonosov Moscow State University, 119234 Moscow, Russia
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Starosta R, Santos TC, Dinis de Sousa AF, Santos MS, Corvo ML, Tomaz AI, de Almeida RFM. Assessing the role of membrane lipids in the action of ruthenium(III) anticancer compounds. Front Mol Biosci 2023; 9:1059116. [PMID: 36660430 PMCID: PMC9845782 DOI: 10.3389/fmolb.2022.1059116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Accepted: 12/12/2022] [Indexed: 01/05/2023] Open
Abstract
This work addresses the possible role of the cell membrane in the molecular mechanism of action of two salan-type ruthenium complexes that were previously shown to be active against human tumor cells, namely [Ru(III)(L1)(PPh3)Cl] and [Ru(III)(L2)(PPh3)Cl] (where L1 is 6,6'-(1R,2R)-cyclohexane-1,2-diylbis(azanediyl)bis(methylene)bis(3-methoxyphenol); and L2 is 2,2'-(1R,2R)-cyclohexane-1,2-diylbis(azanediyl)bis(methylene)bis(4-methoxyphenol)). One-component membrane models were first used, a disordered fluid bilayer of dioleoylphosphatodylcholine (DOPC), and an ordered rigid gel bilayer of dipalmitoylphosphatidylcholine. In addition, two quaternary mixtures of phosphatidylcholine, phosphatidylethanolamine, sphingomyelin and cholesterol were used to mimic the lipid composition either of mammalian plasma membrane (1:1:1:1 mol ratio) or of a cancer cell line membrane (36.2:23.6:6.8:33.4 mol ratio). The results show that both salan ligands L1 and L2 bind relatively strongly to DOPC bilayers, but without significantly affecting their structure. The ruthenium complexes have moderate affinity for DOPC. However, their impact on the membranes was notable, leading to a significant increase in the permeability of the lipid vesicles. None of the compounds compromised liposome integrity, as revealed by dynamic light scattering. Fluorescence spectroscopy studies revealed changes in the biophysical properties of all membrane models analyzed in the presence of the two complexes, which promoted an increased fluidity and water penetration into the lipid bilayer in the one-component systems. In the quaternary mixtures, one of the complexes had an analogous effect (increasing water penetration), whereas the other complex reorganized the liquid ordered and liquid disordered domains. Thus, small structural differences in the metal ligands may lead to different outcomes. To better understand the effect of these complexes in cancer cells, the membrane dipole potential was also measured. For both Ru complexes, an increase in the dipole potential was observed for the cancer cell membrane model, while no alteration was detected on the non-cancer plasma membrane model. Our results show that the action of the Ru(III) complexes tested involves changes in the biophysical properties of the plasma membrane, and that it also depends on membrane lipid composition, which is frequently altered in cancer cells when compared to their normal counterparts.
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Affiliation(s)
- Radoslaw Starosta
- Faculty of Chemistry, University of Wroclaw, Wroclaw, Poland,Centro de Química Estrutural, Institute of Molecular Sciences, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Lisbon, Portugal
| | - Telma C. Santos
- Centro de Química Estrutural, Institute of Molecular Sciences, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Lisbon, Portugal
| | - Andreia F. Dinis de Sousa
- Centro de Química Estrutural, Institute of Molecular Sciences, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Lisbon, Portugal
| | - Maria Soledade Santos
- Centro de Química Estrutural, Institute of Molecular Sciences, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Lisbon, Portugal
| | - M. Luisa Corvo
- Research Institute for Medicines (iMed.ULisboa), Faculdade de Farmácia, Universidade de Lisboa, Lisbon, Portugal
| | - Ana Isabel Tomaz
- Centro de Química Estrutural, Institute of Molecular Sciences, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Lisbon, Portugal,*Correspondence: Rodrigo F. M. de Almeida, ; Ana Isabel Tomaz,
| | - Rodrigo F. M. de Almeida
- Centro de Química Estrutural, Institute of Molecular Sciences, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Lisbon, Portugal,*Correspondence: Rodrigo F. M. de Almeida, ; Ana Isabel Tomaz,
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37
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Yasuda T, Slotte JP, Murata M, Hanashima S. Molecular Dynamics of Glycolipids in Liposomes. Methods Mol Biol 2023; 2613:257-270. [PMID: 36587084 DOI: 10.1007/978-1-0716-2910-9_19] [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: 01/02/2023]
Abstract
Glycosphingolipids (GSLs) in the mammalian plasma membrane are essential for various biological events as they form glycolipid-rich membrane domains, such as lipid rafts. GSLs consist of a certain oligosaccharide head group and a ceramide tail with various lengths of acyl chains. The structure of the head group as well as the carbon number and degree of the unsaturation of the acyl chain are known to regulate the membrane distributions and interleaflet couplings of GSLs by altering physicochemical properties, such as dynamics, interactions, and cluster sizes. This chapter provides the detailed use of time-resolved fluorescence measurement for investigating the membrane properties of lactosylceramide (LacCer)-enriched domains in bilayer membranes. LacCer belongs to the neutral GSLs and is believed in forming a highly ordered phase in model membranes and biological membranes, while the details of the domain remain unclear. Here, we suggest using trans-parinaric acid (tPA) and tPA-LacCer fluorescent probes to reveal the dynamics and size of the GSL domains since they prefer to be distributed in the GSL-rich ordered phase. The fluorescence lifetime in the nanosecond timescale reveals the difference in the surrounding membrane environments, which relates to hydrocarbon chain ordering, membrane hydration, and submicrometer domain size. The fluorescence lifetime of these probes can thus provide important information on submicron- to nano-scale small GSL domains not only in model membranes but also in biological membranes.
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Affiliation(s)
- Tomokazu Yasuda
- Graduate School of Science, Osaka University, Toyonaka, Osaka, Japan
| | - J Peter Slotte
- Biochemistry, Faculty of Science and Engineering, Åbo Akademi University, Turku, Finland
| | - Michio Murata
- Graduate School of Science, Osaka University, Toyonaka, Osaka, Japan
| | - Shinya Hanashima
- Graduate School of Science, Osaka University, Toyonaka, Osaka, Japan.
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38
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Pinho JO, Matias M, Marques V, Eleutério C, Fernandes C, Gano L, Amaral JD, Mendes E, Perry MJ, Moreira JN, Storm G, Francisco AP, Rodrigues CMP, Gaspar MM. Preclinical validation of a new hybrid molecule loaded in liposomes for melanoma management. Biomed Pharmacother 2023; 157:114021. [PMID: 36399831 DOI: 10.1016/j.biopha.2022.114021] [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: 08/17/2022] [Revised: 11/11/2022] [Accepted: 11/14/2022] [Indexed: 11/17/2022] Open
Abstract
The aggressiveness of melanoma and lack of effective therapies incite the discovery of novel strategies. Recently, a new dual acting hybrid molecule (HM), combining a triazene and a ʟ-tyrosine analogue, was synthesized. HM was designed to specifically be activated by tyrosinase, the enzyme involved in melanin biosynthesis and overexpressed in melanoma. HM displayed remarkable superior antiproliferative activity towards various cancer cell lines compared with temozolomide (TMZ), a triazene drug in clinical use, that acts through DNA alkylation. In B16-F10 cells, HM induced a cell cycle arrest at phase G0/G1 with a 2.8-fold decrease in cell proliferation index. Also, compared to control cells, HM led to a concentration-dependent reduction in tyrosinase activity and increase in caspase 3/7 activity. To maximize the therapeutic performance of HM in vivo, its incorporation in long blood circulating liposomes, containing poly(ethylene glycol) (PEG) at their surface, was performed for passively targeting tumour sites. HM liposomes (LIP HM) exhibited high stability in biological fluids. Preclinical studies demonstrated its safety for systemic administration and in a subcutaneous murine melanoma model, significantly reduced tumour progression. In a metastatic murine melanoma model, a superior antitumour effect was also observed for mice receiving LIP HM, with markedly reduction of lung metastases compared to positive control group (TMZ). Biodistribution studies using 111In-labelled LIP HM demonstrated its ability for passively targeting tumour sites, thus correlating with the high therapeutic effect observed in the two experimental murine melanoma models. Overall, our proposed nanotherapeutic strategy was validated as an effective and safe alternative against melanoma.
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Affiliation(s)
- Jacinta O Pinho
- Research Institute for Medicines, iMed.ULisboa, Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal
| | - Mariana Matias
- Research Institute for Medicines, iMed.ULisboa, Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal
| | - Vanda Marques
- Research Institute for Medicines, iMed.ULisboa, Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal
| | - Carla Eleutério
- Research Institute for Medicines, iMed.ULisboa, Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal
| | - Célia Fernandes
- Centro de Ciências e Tecnologias Nucleares and Departamento de Engenharia e Ciências Nucleares, Instituto Superior Técnico, Universidade de Lisboa, Bobadela LRS, Portugal
| | - Lurdes Gano
- Centro de Ciências e Tecnologias Nucleares and Departamento de Engenharia e Ciências Nucleares, Instituto Superior Técnico, Universidade de Lisboa, Bobadela LRS, Portugal
| | - Joana D Amaral
- Research Institute for Medicines, iMed.ULisboa, Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal
| | - Eduarda Mendes
- Research Institute for Medicines, iMed.ULisboa, Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal
| | - Maria Jesus Perry
- Research Institute for Medicines, iMed.ULisboa, Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal
| | - João Nuno Moreira
- Center for Neurosciences and Cell Biology (CNC), Center for Innovative Biomedicine and Biotechnology (CIBB), University of Coimbra, Faculty of Medicine (Polo 1), Rua Larga, 3004-504 Coimbra, Portugal; University of Coimbra (Univ Coimbra), CIBB, Faculty of Pharmacy, Pólo das Ciências da Saúde, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal
| | - Gert Storm
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, the Netherlands; Department of Biomaterial Science and Technology, University of Twente, Enschede, the Netherlands; Department of Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228, Singapore
| | - Ana Paula Francisco
- Research Institute for Medicines, iMed.ULisboa, Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal
| | - Cecília M P Rodrigues
- Research Institute for Medicines, iMed.ULisboa, Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal
| | - M Manuela Gaspar
- Research Institute for Medicines, iMed.ULisboa, Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal.
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Park S, Kim HK. Development of skin-permeable flexible liposome using ergosterol esters containing unsaturated fatty acids. Chem Phys Lipids 2023; 250:105270. [PMID: 36493880 DOI: 10.1016/j.chemphyslip.2022.105270] [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: 09/27/2022] [Revised: 11/21/2022] [Accepted: 12/04/2022] [Indexed: 12/12/2022]
Abstract
Ergosterol (Ergo) and cholesterol contribute to performances of liposomes by increasing membrane packing density and physical stability. However, as these sterols can reduce membrane flexibility, they can lower skin permeability of liposomes. We synthesized ergosterol ester (Ergo-Est) containing unsaturated fatty acid different from Ergo in size and physical properties. In this work, we investigated effects of Ergo-Est and Ergo on physical properties of liposomes. We incorporated Ergo, Ergo-oleate (EO18:1), Ergo-linoleate (EL18:2), and Ergo-linolenate (ELn18:3) into the liposomal membrane of egg phosphatidylcholine and soybean lecithin. Ergo-Est did not reduce membrane fluidity as much as Ergo. Nevertheless, Ergo-Est increased membrane packing density and physical stability of liposomes. EL18:2 and ELn18:3 almost maintained membrane flexibility and skin permeability of liposomes, while Ergo significantly reduced them. Skin permeation test demonstrated that EL18:2 and ELn18:3 liposomes permeated to the dermis, whereas Ergo liposome mostly remained in the stratum corneum. This is the first report to show that EL18:2 and ELn18:3 can be efficient sterol compounds for flexible liposome formulation.
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Affiliation(s)
- Sehyeon Park
- Division of Biotechnology, The Catholic University of Korea, Bucheon 420-743, Republic of Korea
| | - Hyung Kwoun Kim
- Division of Biotechnology, The Catholic University of Korea, Bucheon 420-743, Republic of Korea.
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The Role of Membrane Affinity and Binding Modes in Alpha-Synuclein Regulation of Vesicle Release and Trafficking. Biomolecules 2022; 12:biom12121816. [PMID: 36551244 PMCID: PMC9775087 DOI: 10.3390/biom12121816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 11/02/2022] [Accepted: 11/27/2022] [Indexed: 12/12/2022] Open
Abstract
Alpha-synuclein is a presynaptic protein linked to Parkinson's disease with a poorly characterized physiological role in regulating the synaptic vesicle cycle. Using RBL-2H3 cells as a model system, we earlier reported that wild-type alpha-synuclein can act as both an inhibitor and a potentiator of stimulated exocytosis in a concentration-dependent manner. The inhibitory function is constitutive and depends on membrane binding by the helix-2 region of the lipid-binding domain, while potentiation becomes apparent only at high concentrations. Using structural and functional characterization of conformationally selective mutants via a combination of spectroscopic and cellular assays, we show here that binding affinity for isolated vesicles similar in size to synaptic vesicles is a primary determinant of alpha-synuclein-mediated potentiation of vesicle release. Inhibition of release is sensitive to changes in the region linking the helix-1 and helix-2 regions of the N-terminal lipid-binding domain and may require some degree of coupling between these regions. Potentiation of release likely occurs as a result of alpha-synuclein interactions with undocked vesicles isolated away from the active zone in internal pools. Consistent with this, we observe that alpha-synuclein can disperse vesicles from in vitro clusters organized by condensates of the presynaptic protein synapsin-1.
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41
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Mesquita BS, Fens MHAM, Di Maggio A, Bosman EDC, Hennink WE, Heger M, Oliveira S. The Impact of Nanobody Density on the Targeting Efficiency of PEGylated Liposomes. Int J Mol Sci 2022; 23:ijms232314974. [PMID: 36499301 PMCID: PMC9741042 DOI: 10.3390/ijms232314974] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 11/20/2022] [Accepted: 11/22/2022] [Indexed: 12/05/2022] Open
Abstract
Nanoparticles (NPs) are commonly modified with tumor-targeting moieties that recognize proteins overexpressed on the extracellular membrane to increase their specific interaction with target cells. Nanobodies (Nbs), the variable domain of heavy chain-only antibodies, are a robust targeting ligand due to their small size, superior stability, and strong binding affinity. For the clinical translation of targeted Nb-NPs, it is essential to understand how the number of Nbs per NP impacts the receptor recognition on cells. To study this, Nbs targeting the hepatocyte growth factor receptor (MET-Nbs) were conjugated to PEGylated liposomes at a density from 20 to 800 per liposome and their targeting efficiency was evaluated in vitro. MET-targeted liposomes (MET-TLs) associated more profoundly with MET-expressing cells than non-targeted liposomes (NTLs). MET-TLs with approximately 150-300 Nbs per liposome exhibited the highest association and specificity towards MET-expressing cells and retained their targeting capacity when pre-incubated with proteins from different sources. Furthermore, a MET-Nb density above 300 Nbs per liposome increased the interaction of MET-TLs with phagocytic cells by 2-fold in ex vivo human blood compared to NTLs. Overall, this study demonstrates that adjusting the MET-Nb density can increase the specificity of NPs towards their intended cellular target and reduce NP interaction with phagocytic cells.
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Affiliation(s)
- Bárbara S. Mesquita
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, 3584 CG Utrecht, The Netherlands
| | - Marcel H. A. M. Fens
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, 3584 CG Utrecht, The Netherlands
| | - Alessia Di Maggio
- Cell Biology, Neurobiology and Biophysics, Department of Biology, Science Faculty, Utrecht University, 3584 CG Utrecht, The Netherlands
| | - Esmeralda D. C. Bosman
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, 3584 CG Utrecht, The Netherlands
| | - Wim E. Hennink
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, 3584 CG Utrecht, The Netherlands
| | - Michal Heger
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, 3584 CG Utrecht, The Netherlands
- Jiaxing Key Laboratory for Photonanomedicine and Experimental Therapeutics, Department of Pharmaceutics, College of Medicine, Jiaxing University, Jiaxing 314041, China
- Membrane Biochemistry and Biophysics, Bijvoet Center for Biomolecular Research, Department of Chemistry, Utrecht University, 3584 CG Utrecht, The Netherlands
- Correspondence: (M.H.); (S.O.)
| | - Sabrina Oliveira
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, 3584 CG Utrecht, The Netherlands
- Cell Biology, Neurobiology and Biophysics, Department of Biology, Science Faculty, Utrecht University, 3584 CG Utrecht, The Netherlands
- Correspondence: (M.H.); (S.O.)
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Bogusławska DM, Skulski M, Bartoszewski R, Machnicka B, Heger E, Kuliczkowski K, Sikorski AF. A rare mutation (p.F149del) of the NT5C3A gene is associated with pyrimidine 5'-nucleotidase deficiency. Cell Mol Biol Lett 2022; 27:104. [PMID: 36434495 PMCID: PMC9700897 DOI: 10.1186/s11658-022-00405-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Accepted: 11/04/2022] [Indexed: 11/27/2022] Open
Abstract
Pyrimidine 5'-nucleotidase deficiency is a rare erythrocyte enzymopathy. Here we report two cases of hemolytic anemia in brothers of Polish origin that are associated with a very rare mutation. Heterozygous deletion in the NT5C3A gene (c.444_446delGTT), inherited most likely from their asymptomatic mother, resulted in a single amino acid residue deletion (p.F149del) in cytosolic pyrimidine 5'-nucleotidase. However, only the mutated transcript was present in the reticulocyte transcriptome of both patients. Only residual activity of pyrimidine 5'-nucleotidase in the brothers' erythrocytes could be observed when compared with the controls, including their asymptomatic father and sister. Western blot showed no sign of the presence of 5'-nucleotidase protein in the erythrocytes of both studied patients. The 2.5-fold reduction of the purine/pyrimidine ratio observed only in the brothers' erythrocytes confirms the correlation of the results of molecular analysis, including whole-exome sequencing, with the phenotype of the pyrimidine 5'-nucleotidase deficiency. Altogether, our results may substantiate the hypothesis of the heterogeneity of the molecular basis of the defect involving both the mutation presented here and negative regulation of expression of the "normal" allele.
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Affiliation(s)
- Dżamila M. Bogusławska
- grid.28048.360000 0001 0711 4236Department of Biotechnology, Institute of Biological Sciences, University of Zielona Góra, Prof. Z. Szafrana 1 St., 65-516 Zielona Góra, Poland
| | - Michał Skulski
- grid.8505.80000 0001 1010 5103Department of Cytobiochemistry, Faculty of Biotechnology, University of Wrocław, F. Joliot-Curie 14a St., 50-383 Wrocław, Poland
| | - Rafał Bartoszewski
- grid.8505.80000 0001 1010 5103Department of Biophysics, Faculty of Biotechnology, University of Wrocław, F. Joliot-Curie 14a St., 50-383 Wrocław, Poland
| | - Beata Machnicka
- grid.28048.360000 0001 0711 4236Department of Biotechnology, Institute of Biological Sciences, University of Zielona Góra, Prof. Z. Szafrana 1 St., 65-516 Zielona Góra, Poland
| | - Elżbieta Heger
- grid.28048.360000 0001 0711 4236Department of Biotechnology, Institute of Biological Sciences, University of Zielona Góra, Prof. Z. Szafrana 1 St., 65-516 Zielona Góra, Poland
| | - Kazimierz Kuliczkowski
- grid.498904.8Silesian Park of Medical Technology Kardio-Med Silesia, M. Curie-Skłodowskiej 10C St., 41-800 Zabrze, Poland
| | - Aleksander F. Sikorski
- Research and Development Centre, Regional Specialist Hospital, Kamieńskiego 73a St., 51-154 Wrocław, Poland
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43
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Clop EM, Fraceto LF, Miguel V, Gastaldi S, de Paula E, Perillo MA. Combined in-silico and in-vitro experiments support acid-base equilibrium as a tool to estimate the localization depth of 4-nitrophenol within a phospholipid bilayer. BIOCHIMICA ET BIOPHYSICA ACTA. BIOMEMBRANES 2022; 1864:184009. [PMID: 35896126 DOI: 10.1016/j.bbamem.2022.184009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 07/09/2022] [Accepted: 07/14/2022] [Indexed: 06/15/2023]
Abstract
The interaction and location of 4-nitrophenol (PNP) in biomembranes are relevant in the bioaccumulation and potentiation of the intensive toxic effects of this persistent organic pollutant. In this work, in-silico analyses predicted that, in a fluid phospholipid bilayer, the minimum energy of the protonated (PNPH) and deprotonated (PNP-) species is located within the glycerol and choline region, respectively. This was experimentally confirmed by acid-base equilibrium experiments and theory, allowing the estimation of the mean location of PNP within a bilayer region with a dielectric constant D = 50.6 compatible with the phosphate/choline moiety of egg-yolk phosphatidylcholine unilamellar (EPC) vesicles. The comparison with the D = 43.2 value obtained in Triton X-100 micelles allow predicting a mean surface potential of ψ = 25.37 mV for the EPC-water interface. Changes in the chemical shifts and longitudinal relaxation times of EPC hydrogens by 1H NMR confirm the deeper location of the PNPH within the glycerol region and at the choline region (PNP-) at higher pH. Intermolecular PNP-EPC dipolar interactions within the choline region was also demonstrated at pH 10.2 using ROESY experiments. Additional information was obtained trough 31P NMR, that detected an increase in the anisotropy at the membrane interface after insertion of PNP which probably act as a bridge between choline moieties rigidizing the crystalline structure at that spot. Concluding, here we provide experimental support to the "pH-piston hypothesis" proposed some decades ago in the pharmaceutical field, and that reinforce the importance of the environmental conditions (e.g. pH) to modulate the bioavailability of this highly toxic pollutant.
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Affiliation(s)
- Eduardo M Clop
- Universidad Nacional de Córdoba, Facultad de Ciencias Exactas, Físicas y Naturales, ICTA and Departamento de Química, Cátedra de Química Biológica, Av. Vélez Sársfield 1611, 5016 Córdoba, Argentina; CONICET-Universidad Nacional de Córdoba, Instituto de Investigaciones Biológicas y Tecnológicas (IIByT), Córdoba, Argentina
| | - Leonardo F Fraceto
- Depto de Engenharia Ambiental, Universidade Estadual Paulista Julio de Mesquita Filho, Sorocaba, SP, Brazil
| | - Virginia Miguel
- Universidad Nacional de Córdoba, Facultad de Ciencias Exactas, Físicas y Naturales, ICTA and Departamento de Química, Cátedra de Química Biológica, Av. Vélez Sársfield 1611, 5016 Córdoba, Argentina; CONICET-Universidad Nacional de Córdoba, Instituto de Investigaciones Biológicas y Tecnológicas (IIByT), Córdoba, Argentina
| | - Salomé Gastaldi
- Universidad Nacional de Córdoba, Facultad de Ciencias Exactas, Físicas y Naturales, ICTA and Departamento de Química, Cátedra de Química Biológica, Av. Vélez Sársfield 1611, 5016 Córdoba, Argentina; CONICET-Universidad Nacional de Córdoba, Instituto de Investigaciones Biológicas y Tecnológicas (IIByT), Córdoba, Argentina
| | - Eneida de Paula
- Depto de Bioquímica e Biologia Tecidual, Inst. Biologia, Universidade Estadual de Campinas, SP, Brazil
| | - María Angélica Perillo
- Universidad Nacional de Córdoba, Facultad de Ciencias Exactas, Físicas y Naturales, ICTA and Departamento de Química, Cátedra de Química Biológica, Av. Vélez Sársfield 1611, 5016 Córdoba, Argentina; CONICET-Universidad Nacional de Córdoba, Instituto de Investigaciones Biológicas y Tecnológicas (IIByT), Córdoba, Argentina.
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Morais CM, Cardoso AM, Araújo ARD, Reis A, Domingues P, Domingues MRM, de Lima MCP, Jurado AS. Stearoyl CoA Desaturase-1 Silencing in Glioblastoma Cells: Phospholipid Remodeling and Cytotoxicity Enhanced upon Autophagy Inhibition. Int J Mol Sci 2022; 23:13014. [PMID: 36361811 PMCID: PMC9654881 DOI: 10.3390/ijms232113014] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 10/18/2022] [Accepted: 10/21/2022] [Indexed: 09/29/2023] Open
Abstract
Modulation of lipid metabolism is a well-established cancer hallmark, and SCD1 has been recognized as a key enzyme in promoting cancer cell growth, including in glioblastoma (GBM), the deadliest brain tumor and a paradigm of cancer resistance. The central goal of this work was to identify, by MS, the phospholipidome alterations resulting from the silencing of SCD1 in human GBM cells, in order to implement an innovative therapy to fight GBM cell resistance. With this purpose, RNAi technology was employed, and low serum-containing medium was used to mimic nutrient deficiency conditions, at which SCD1 is overexpressed. Besides the expected increase in the saturated to unsaturated fatty acid ratio in SCD1 silenced-GBM cells, a striking increase in polyunsaturated chains, particularly in phosphatidylethanolamine and cardiolipin species, was noticed and tentatively correlated with an increase in autophagy (evidenced by the increase in LC3BII/I ratio). The contribution of autophagy to mitigate the impact of SCD1 silencing on GBM cell viability and growth, whose modest inhibition could be correlated with the maintenance of energetically associated mitochondria, was evidenced by using autophagy inhibitors. In conclusion, SCD1 silencing could constitute an important tool to halt GBM resistance to the available treatments, especially when coupled with a mitochondria disrupter chemotherapeutic.
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Affiliation(s)
- Catarina M. Morais
- Department of Life Sciences, University of Coimbra, Calçada Martim de Freitas, 3000-456 Coimbra, Portugal
- CNC—Centre for Neuroscience and Cell Biology, CIIB—Centre for Innovative Biomedicine and Biotechnology, IIIUC—Institute for Interdisciplinary Research, University of Coimbra, 3004-504 Coimbra, Portugal
| | - Ana M. Cardoso
- CNC—Centre for Neuroscience and Cell Biology, CIIB—Centre for Innovative Biomedicine and Biotechnology, IIIUC—Institute for Interdisciplinary Research, University of Coimbra, 3004-504 Coimbra, Portugal
| | - Ana Rita D. Araújo
- Mass Spectrometry Centre, LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, Santiago University Campus, 3810-193 Aveiro, Portugal
| | - Ana Reis
- Mass Spectrometry Centre, LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, Santiago University Campus, 3810-193 Aveiro, Portugal
| | - Pedro Domingues
- Mass Spectrometry Centre, LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, Santiago University Campus, 3810-193 Aveiro, Portugal
| | - Maria Rosário M. Domingues
- Mass Spectrometry Centre, LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, Santiago University Campus, 3810-193 Aveiro, Portugal
- CESAM—Centre for Environmental and Marine Studies, Department of Chemistry, University of Aveiro, Santiago University Campus, 3810-193 Aveiro, Portugal
| | - Maria C. Pedroso de Lima
- CNC—Centre for Neuroscience and Cell Biology, CIIB—Centre for Innovative Biomedicine and Biotechnology, IIIUC—Institute for Interdisciplinary Research, University of Coimbra, 3004-504 Coimbra, Portugal
| | - Amália S. Jurado
- Department of Life Sciences, University of Coimbra, Calçada Martim de Freitas, 3000-456 Coimbra, Portugal
- CNC—Centre for Neuroscience and Cell Biology, CIIB—Centre for Innovative Biomedicine and Biotechnology, IIIUC—Institute for Interdisciplinary Research, University of Coimbra, 3004-504 Coimbra, Portugal
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Kramer K, Sari M, Schulze K, Flegel H, Stehr M, Mey I, Janshoff A, Steinem C. From LUVs to GUVs─How to Cover Micrometer-Sized Pores with Membranes. J Phys Chem B 2022; 126:8233-8244. [PMID: 36210780 DOI: 10.1021/acs.jpcb.2c05685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Pore-spanning membranes (PSMs) are a versatile tool to investigate membrane-confined processes in a bottom-up approach. Pore sizes in the micrometer range are most suited to visualize PSMs using fluorescence microscopy. However, the preparation of these PSMs relies on the spreading of giant unilamellar vesicles (GUVs). GUV production faces several limitations. Thus, alternative ways to generate PSMs starting from large or small unilamellar vesicles that are more reproducibly prepared are highly desirable. Here we describe a method to produce PSMs obtained from large unilamellar vesicles, making use of droplet-stabilized GUVs generated in a microfluidic device. We analyzed the lipid diffusion in the free-standing and supported parts of the PSMs using z-scan fluorescence correlation spectroscopy and fluorescence recovery after photobleaching experiments in combination with finite element simulations. Employing atomic force indentation experiments, we also investigated the mechanical properties of the PSMs. Both lipid diffusion constants and lateral membrane tension were compared to those obtained on PSMs derived from electroformed GUVs, which are known to be solvent- and detergent-free, under otherwise identical conditions. Our results demonstrate that the lipid diffusion, as well as the mechanical properties of the resulting PSMs, is almost unaffected by the GUV formation procedure but depends on the chosen substrate functionalization. With the new method in hand, we were able to reconstitute the syntaxin-1A transmembrane domain in microfluidic GUVs and PSMs, which was visualized by fluorescence microscopy.
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Affiliation(s)
- Kristina Kramer
- Institute of Organic and Biomolecular Chemistry, University of Göttingen, Tammannstrasse 2, 37077Göttingen, Germany
| | - Merve Sari
- Institute of Organic and Biomolecular Chemistry, University of Göttingen, Tammannstrasse 2, 37077Göttingen, Germany
| | - Kathrin Schulze
- Institute of Organic and Biomolecular Chemistry, University of Göttingen, Tammannstrasse 2, 37077Göttingen, Germany
| | - Hendrik Flegel
- Institute of Organic and Biomolecular Chemistry, University of Göttingen, Tammannstrasse 2, 37077Göttingen, Germany
| | - Miriam Stehr
- Institute of Organic and Biomolecular Chemistry, University of Göttingen, Tammannstrasse 2, 37077Göttingen, Germany
| | - Ingo Mey
- Institute of Organic and Biomolecular Chemistry, University of Göttingen, Tammannstrasse 2, 37077Göttingen, Germany
| | - Andreas Janshoff
- Institute of Physical Chemistry, University of Göttingen, Tammannstrasse 6, 37077Göttingen, Germany
| | - Claudia Steinem
- Institute of Organic and Biomolecular Chemistry, University of Göttingen, Tammannstrasse 2, 37077Göttingen, Germany.,Max Planck Institute for Dynamics and Self-Organization, Am Fassberg 17, 37077Göttingen, Germany
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Guo Y, Li J, Li L, Liu C. Sphaerisporangium fuscum sp. nov., Isolated from Sediment of Anmucuo Lake in Tibet Autonomous Region of China. Curr Microbiol 2022; 79:362. [PMID: 36253621 DOI: 10.1007/s00284-022-03067-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Accepted: 09/28/2022] [Indexed: 11/28/2022]
Abstract
A novel actinomycete strain, designated H8589T, was isolated from a lake sediment sample, and a polyphasic approach was employed to determine its taxonomic position. Phylogenetic analysis based on 16S rRNA gene indicated that strain H8589T formed a monophyletic clade within the genus Sphaerisporangium and was most closely related to Sphaerisporangium siamense DSM 45784 T (97.9% similarity) and Sphaerisporangium rufum DSM 46862 T (97.7% similarity). The draft genome had a length of 10,134,050 bp with a G + C content of 71.2%. The average nucleotide identity, average amino acid identity and digital DNA-DNA hybridization values between strain H8589T and its closely related Sphaerisporangium species were 80.6 ~ 83.2%, 73.9 ~ 78.4% and 24.5 ~ 29.0%, respectively, which were significantly lower than the widely accepted species-defined threshold. The diagnostic diamino acid of the peptidoglycan was meso-diaminopimelic acid. Whole-cell sugars were glucose, ribose and madurose. The menaquinones were MK-9(H4), MK-9(H2), MK-9(H6) and MK-9. The phospholipid profile consisted of diphosphatidylglycerol, phosphatidylglycerol, phosphatidylethanolamine, hydroxy-phosphatidylethanolamine, unidentified phospholipids and unidentified aminophospholipids. The major fatty acids were identified as iso-C16:0, 10-methyl-C17:0 and C17:0. The results of phenotypic properties, genotypic distinctiveness and chemotaxonomic features indicated that strain H8589T should represent a novel species within the genus Sphaerisporangium, Sphaerisporangium fuscum sp.nov. The type strain is H8589T (= JCM 34848 T = CICC 25115 T).
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Affiliation(s)
- Yidong Guo
- Antibiotics Research and Re-Evaluation Key Laboratory of Sichuan Province, School of Pharmacy, Chengdu University, Chengdu, 610106, People's Republic of China
| | - Jianghua Li
- Antibiotics Research and Re-Evaluation Key Laboratory of Sichuan Province, School of Pharmacy, Chengdu University, Chengdu, 610106, People's Republic of China.,Irradiation Preservation Technology Key Laboratory of Sichuan Province, Sichuan Institute of Atomic Energy, Chengdu, 610101, People's Republic of China
| | - Li Li
- College of Biotechnology Engineering, Sichuan University of Science & Engineering, Zigong, 643000, People's Republic of China
| | - Chaolan Liu
- Antibiotics Research and Re-Evaluation Key Laboratory of Sichuan Province, School of Pharmacy, Chengdu University, Chengdu, 610106, People's Republic of China.
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Palacios-Ortega J, Amigot-Sánchez R, García-Montoya C, Gorše A, Heras-Márquez D, García-Linares S, Martínez-del-Pozo Á, Slotte JP. Determination of the boundary lipids of sticholysins using tryptophan quenching. Sci Rep 2022; 12:17328. [PMID: 36243747 PMCID: PMC9569322 DOI: 10.1038/s41598-022-21750-y] [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: 06/28/2022] [Accepted: 09/30/2022] [Indexed: 01/10/2023] Open
Abstract
Sticholysins are α-pore-forming toxins produced by the sea-anemone Stichodactyla helianthus. These toxins exert their activity by forming pores on sphingomyelin-containing membranes. Recognition of sphingomyelin by sticholysins is required to start the process of pore formation. Sphingomyelin recognition is coupled with membrane binding and followed by membrane penetration and oligomerization. Many features of these processes are known. However, the extent of contact with each of the different kinds of lipids present in the membrane has received little attention. To delve into this question, we have used a phosphatidylcholine analogue labeled at one of its acyl chains with a doxyl moiety, a known quencher of tryptophan emission. Here we present evidence for the contact of sticholysins with phosphatidylcholine lipids in the sticholysin oligomer, and for how each sticholysin isotoxin is affected differently by the inclusion of cholesterol in the membrane. Furthermore, using phosphatidylcholine analogs that were labeled at different positions of their structure (acyl chains and headgroup) in combination with a variety of sticholysin mutants, we also investigated the depth of the tryptophan residues of sticholysins in the bilayer. Our results indicate that the position of the tryptophan residues relative to the membrane normal is deeper when cholesterol is absent from the membrane.
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Affiliation(s)
- Juan Palacios-Ortega
- grid.13797.3b0000 0001 2235 8415Biochemistry Department, Faculty of Science and Engineering, Åbo Akademi University, Turku, Finland ,grid.4795.f0000 0001 2157 7667Departamento de Bioquímica y Biología Molecular, Universidad Complutense, Madrid, Spain
| | - Rafael Amigot-Sánchez
- grid.4795.f0000 0001 2157 7667Departamento de Bioquímica y Biología Molecular, Universidad Complutense, Madrid, Spain
| | - Carmen García-Montoya
- grid.4795.f0000 0001 2157 7667Departamento de Bioquímica y Biología Molecular, Universidad Complutense, Madrid, Spain
| | - Ana Gorše
- grid.4795.f0000 0001 2157 7667Departamento de Bioquímica y Biología Molecular, Universidad Complutense, Madrid, Spain
| | - Diego Heras-Márquez
- grid.4795.f0000 0001 2157 7667Departamento de Bioquímica y Biología Molecular, Universidad Complutense, Madrid, Spain
| | - Sara García-Linares
- grid.4795.f0000 0001 2157 7667Departamento de Bioquímica y Biología Molecular, Universidad Complutense, Madrid, Spain
| | - Álvaro Martínez-del-Pozo
- grid.4795.f0000 0001 2157 7667Departamento de Bioquímica y Biología Molecular, Universidad Complutense, Madrid, Spain
| | - J. Peter Slotte
- grid.13797.3b0000 0001 2235 8415Biochemistry Department, Faculty of Science and Engineering, Åbo Akademi University, Turku, Finland
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Transdermal diffusion of resveratrol by multilamellar liposomes: Effect of encapsulation on its stability. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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49
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Dias LM, de Keijzer MJ, Ernst D, Sharifi F, de Klerk DJ, Kleijn TG, Desclos E, Kochan JA, de Haan LR, Franchi LP, van Wijk AC, Scutigliani EM, Fens MH, Barendrecht AD, Cavaco JEB, Huang X, Xu Y, Pan W, den Broeder MJ, Bogerd J, Schulz RW, Castricum KC, Thijssen VL, Cheng S, Ding B, Krawczyk PM, Heger M. Metallated phthalocyanines and their hydrophilic derivatives for multi-targeted oncological photodynamic therapy. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY. B, BIOLOGY 2022; 234:112500. [PMID: 35816857 DOI: 10.1016/j.jphotobiol.2022.112500] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 04/27/2022] [Accepted: 06/11/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND AND AIM A photosensitizer (PS) delivery and comprehensive tumor targeting platform was developed that is centered on the photosensitization of key pharmacological targets in solid tumors (cancer cells, tumor vascular endothelium, and cellular and non-cellular components of the tumor microenvironment) before photodynamic therapy (PDT). Interstitially targeted liposomes (ITLs) encapsulating zinc phthalocyanine (ZnPC) and aluminum phthalocyanine (AlPC) were formulated for passive targeting of the tumor microenvironment. In previous work it was established that the PEGylated ITLs were taken up by cultured cholangiocarcinoma cells. The aim of this study was to verify previous results in cancer cells and to determine whether the ITLs can also be used to photosensitize cells in the tumor microenvironment and vasculature. Following positive results, rudimentary in vitro and in vivo experiments were performed with ZnPC-ITLs and AlPC-ITLs as well as their water-soluble tetrasulfonated derivatives (ZnPCS4 and AlPCS4) to assemble a research dossier and bring this platform closer to clinical transition. METHODS Flow cytometry and confocal microscopy were employed to determine ITL uptake and PS distribution in cholangiocarcinoma (SK-ChA-1) cells, endothelial cells (HUVECs), fibroblasts (NIH-3T3), and macrophages (RAW 264.7). Uptake of ITLs by endothelial cells was verified under flow conditions in a flow chamber. Dark toxicity and PDT efficacy were determined by cell viability assays, while the mode of cell death and cell cycle arrest were assayed by flow cytometry. In vivo systemic toxicity was assessed in zebrafish and chicken embryos, whereas skin phototoxicity was determined in BALB/c nude mice. A PDT efficacy pilot was conducted in BALB/c nude mice bearing human triple-negative breast cancer (MDA-MB-231) xenografts. RESULTS The key findings were that (1) photodynamically active PSs (i.e., all except ZnPCS4) were able to effectively photosensitize cancer cells and non-cancerous cells; (2) following PDT, photodynamically active PSs were highly toxic-to-potent as per anti-cancer compound classification; (3) the photodynamically active PSs did not elicit notable systemic toxicity in zebrafish and chicken embryos; (4) ITL-delivered ZnPC and ZnPCS4 were associated with skin phototoxicity, while the aluminum-containing PSs did not exert detectable skin phototoxicity; and (5) ITL-delivered ZnPC and AlPC were equally effective in their tumor-killing capacity in human tumor breast cancer xenografts and superior to other non-phthalocyanine PSs when appraised on a per mole administered dose basis. CONCLUSIONS AlPC(S4) are the safest and most effective PSs to integrate into the comprehensive tumor targeting and PS delivery platform. Pending further in vivo validation, these third-generation PSs may be used for multi-compartmental tumor photosensitization.
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Affiliation(s)
- Lionel Mendes Dias
- Jiaxing Key Laboratory for Photonanomedicine and Experimental Therapeutics, Department of Pharmaceutics, College of Medicine, Jiaxing University, Jiaxing, Zhejiang, PR China; CICS-UBI, Health Sciences Research Center, University of Beira Interior, Covilhã, Portugal; Department of Medical Biology, Cancer Center Amsterdam, Amsterdam UMC Location Academic Medical Center, Amsterdam, the Netherlands; Laboratory of Experimental Oncology, Department of Pathology, Erasmus MC, Rotterdam, the Netherlands
| | - Mark J de Keijzer
- Jiaxing Key Laboratory for Photonanomedicine and Experimental Therapeutics, Department of Pharmaceutics, College of Medicine, Jiaxing University, Jiaxing, Zhejiang, PR China; Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, the Netherlands; Membrane Biochemistry and Biophysics, Department of Chemistry, Faculty of Science, Utrecht University, Utrecht, the Netherlands
| | - Daniël Ernst
- Jiaxing Key Laboratory for Photonanomedicine and Experimental Therapeutics, Department of Pharmaceutics, College of Medicine, Jiaxing University, Jiaxing, Zhejiang, PR China; Laboratory of Experimental Oncology, Department of Pathology, Erasmus MC, Rotterdam, the Netherlands
| | - Farangis Sharifi
- Department of Medical Biology, Cancer Center Amsterdam, Amsterdam UMC Location Academic Medical Center, Amsterdam, the Netherlands; Laboratory of Experimental Oncology and Radiobiology (LEXOR), Cancer Center Amsterdam, Amsterdam UMC Location Academic Medical Center, Amsterdam, the Netherlands
| | - Daniel J de Klerk
- Jiaxing Key Laboratory for Photonanomedicine and Experimental Therapeutics, Department of Pharmaceutics, College of Medicine, Jiaxing University, Jiaxing, Zhejiang, PR China; Laboratory of Experimental Oncology, Department of Pathology, Erasmus MC, Rotterdam, the Netherlands
| | - Tony G Kleijn
- Jiaxing Key Laboratory for Photonanomedicine and Experimental Therapeutics, Department of Pharmaceutics, College of Medicine, Jiaxing University, Jiaxing, Zhejiang, PR China; Laboratory of Experimental Oncology, Department of Pathology, Erasmus MC, Rotterdam, the Netherlands; Department of Pathology and Medical Biology, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - Emilie Desclos
- Department of Medical Biology, Cancer Center Amsterdam, Amsterdam UMC Location Academic Medical Center, Amsterdam, the Netherlands; Laboratory of Experimental Oncology and Radiobiology (LEXOR), Cancer Center Amsterdam, Amsterdam UMC Location Academic Medical Center, Amsterdam, the Netherlands
| | - Jakub A Kochan
- Department of Medical Biology, Cancer Center Amsterdam, Amsterdam UMC Location Academic Medical Center, Amsterdam, the Netherlands; Laboratory of Experimental Oncology and Radiobiology (LEXOR), Cancer Center Amsterdam, Amsterdam UMC Location Academic Medical Center, Amsterdam, the Netherlands
| | - Lianne R de Haan
- Jiaxing Key Laboratory for Photonanomedicine and Experimental Therapeutics, Department of Pharmaceutics, College of Medicine, Jiaxing University, Jiaxing, Zhejiang, PR China; Laboratory of Experimental Oncology, Department of Pathology, Erasmus MC, Rotterdam, the Netherlands
| | - Leonardo P Franchi
- Department of Biochemistry and Molecular Biology, Institute of Biological Sciences (ICB 2), Federal University of Goiás (UFG), Goiânia, Goiás, Brazil
| | - Albert C van Wijk
- Department of Surgery, Amsterdam UMC location VUmc, Amsterdam, the Netherlands
| | - Enzo M Scutigliani
- Department of Medical Biology, Cancer Center Amsterdam, Amsterdam UMC Location Academic Medical Center, Amsterdam, the Netherlands; Laboratory of Experimental Oncology and Radiobiology (LEXOR), Cancer Center Amsterdam, Amsterdam UMC Location Academic Medical Center, Amsterdam, the Netherlands
| | - Marcel H Fens
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, the Netherlands
| | | | - José E B Cavaco
- CICS-UBI, Health Sciences Research Center, University of Beira Interior, Covilhã, Portugal
| | - Xuan Huang
- Jiaxing Key Laboratory for Photonanomedicine and Experimental Therapeutics, Department of Pharmaceutics, College of Medicine, Jiaxing University, Jiaxing, Zhejiang, PR China
| | - Ying Xu
- Department of Cell Biology, College of Medicine, Jiaxing University, Jiaxing, PR China
| | - Weiwei Pan
- Department of Cell Biology, College of Medicine, Jiaxing University, Jiaxing, PR China
| | - Marjo J den Broeder
- Reproductive Biology Group, Division Developmental Biology, Institute of Biodynamics and Biocomplexity, Department of Biology, Faculty of Science, Utrecht University, the Netherlands
| | - Jan Bogerd
- Reproductive Biology Group, Division Developmental Biology, Institute of Biodynamics and Biocomplexity, Department of Biology, Faculty of Science, Utrecht University, the Netherlands
| | - Rüdiger W Schulz
- Reproductive Biology Group, Division Developmental Biology, Institute of Biodynamics and Biocomplexity, Department of Biology, Faculty of Science, Utrecht University, the Netherlands
| | - Kitty C Castricum
- Department of Radiation Oncology, Cancer Center Amsterdam, Amsterdam UMC Location VUmc, Amsterdam, the Netherlands
| | - Victor L Thijssen
- Department of Radiation Oncology, Cancer Center Amsterdam, Amsterdam UMC Location VUmc, Amsterdam, the Netherlands
| | - Shuqun Cheng
- Department of Hepatic Surgery VI, The Eastern Hepatobiliary Surgery Hospital, The Second Military Medical University, Shanghai, PR China
| | - Baoyue Ding
- Jiaxing Key Laboratory for Photonanomedicine and Experimental Therapeutics, Department of Pharmaceutics, College of Medicine, Jiaxing University, Jiaxing, Zhejiang, PR China.
| | - Przemek M Krawczyk
- Department of Medical Biology, Cancer Center Amsterdam, Amsterdam UMC Location Academic Medical Center, Amsterdam, the Netherlands; Laboratory of Experimental Oncology and Radiobiology (LEXOR), Cancer Center Amsterdam, Amsterdam UMC Location Academic Medical Center, Amsterdam, the Netherlands
| | - Michal Heger
- Jiaxing Key Laboratory for Photonanomedicine and Experimental Therapeutics, Department of Pharmaceutics, College of Medicine, Jiaxing University, Jiaxing, Zhejiang, PR China; Laboratory of Experimental Oncology, Department of Pathology, Erasmus MC, Rotterdam, the Netherlands; Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, the Netherlands; Membrane Biochemistry and Biophysics, Department of Chemistry, Faculty of Science, Utrecht University, Utrecht, the Netherlands.
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50
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Mendes SS, Marques J, Mesterházy E, Straetener J, Arts M, Pissarro T, Reginold J, Berscheid A, Bornikoel J, Kluj RM, Mayer C, Oesterhelt F, Friães S, Royo B, Schneider T, Brötz-Oesterhelt H, Romão CC, Saraiva LM. Synergetic Antimicrobial Activity and Mechanism of Clotrimazole-Linked CO-Releasing Molecules. ACS BIO & MED CHEM AU 2022; 2:419-436. [PMID: 35996473 PMCID: PMC9389576 DOI: 10.1021/acsbiomedchemau.2c00007] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
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Several metal-based
carbon monoxide-releasing molecules (CORMs)
are active CO donors with established antibacterial activity. Among
them, CORM conjugates with azole antibiotics of type [Mn(CO)3(2,2′-bipyridyl)(azole)]+ display important synergies
against several microbes. We carried out a structure–activity
relationship study based upon the lead structure of [Mn(CO)3(Bpy)(Ctz)]+ by producing clotrimazole (Ctz) conjugates
with varying metal and ligands. We concluded that the nature of the
bidentate ligand strongly influences the bactericidal activity, with
the substitution of bipyridyl by small bicyclic ligands leading to
highly active clotrimazole conjugates. On the contrary, the metal
did not influence the activity. We found that conjugate [Re(CO)3(Bpy)(Ctz)]+ is more than the sum of its parts:
while precursor [Re(CO)3(Bpy)Br] has no antibacterial activity
and clotrimazole shows only moderate minimal inhibitory concentrations,
the potency of [Re(CO)3(Bpy)(Ctz)]+ is one order
of magnitude higher than that of clotrimazole, and the spectrum of
bacterial target species includes Gram-positive and Gram-negative
bacteria. The addition of [Re(CO)3(Bpy)(Ctz)]+ to Staphylococcus aureus causes a
general impact on the membrane topology, has inhibitory effects on
peptidoglycan biosynthesis, and affects energy functions. The mechanism
of action of this kind of CORM conjugates involves a sequence of events
initiated by membrane insertion, followed by membrane disorganization,
inhibition of peptidoglycan synthesis, CO release, and break down
of the membrane potential. These results suggest that conjugation
of CORMs to known antibiotics may produce useful structures with synergistic
effects that increase the conjugate’s activity relative to
that of the antibiotic alone.
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Affiliation(s)
- Sofia S Mendes
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Avenida da República (EAN), 2780-157 Oeiras, Portugal
| | - Joana Marques
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Avenida da República (EAN), 2780-157 Oeiras, Portugal
| | - Edit Mesterházy
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Avenida da República (EAN), 2780-157 Oeiras, Portugal
| | - Jan Straetener
- Interfaculty Institute of Microbiology and Infection Medicine, Dept. of Microbial Bioactive Compounds, Cluster of Excellence Controlling Microbes to Fight Infection. University of Tuebingen, Auf der Morgenstelle 28, 72070 Tuebingen, Germany
| | - Melina Arts
- Institute for Pharmaceutical Microbiology, University of Bonn, University Clinic Bonn, Meckenheimer Allee 168, 53115 Bonn, Germany
| | - Teresa Pissarro
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Avenida da República (EAN), 2780-157 Oeiras, Portugal
| | - Jorgina Reginold
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Avenida da República (EAN), 2780-157 Oeiras, Portugal
| | - Anne Berscheid
- Interfaculty Institute of Microbiology and Infection Medicine, Dept. of Microbial Bioactive Compounds, Cluster of Excellence Controlling Microbes to Fight Infection. University of Tuebingen, Auf der Morgenstelle 28, 72070 Tuebingen, Germany
| | - Jan Bornikoel
- Interfaculty Institute of Microbiology and Infection Medicine, Dept. of Microbial Bioactive Compounds, Cluster of Excellence Controlling Microbes to Fight Infection. University of Tuebingen, Auf der Morgenstelle 28, 72070 Tuebingen, Germany
| | - Robert M Kluj
- Institute of Microbiology and Infection Medicine, Dept. of Organismic Interactions, University of Tuebingen, Auf der Morgenstelle 28, 72070 Tuebingen, Germany
| | - Christoph Mayer
- Institute of Microbiology and Infection Medicine, Dept. of Organismic Interactions, University of Tuebingen, Auf der Morgenstelle 28, 72070 Tuebingen, Germany
| | - Filipp Oesterhelt
- Interfaculty Institute of Microbiology and Infection Medicine, Dept. of Microbial Bioactive Compounds, Cluster of Excellence Controlling Microbes to Fight Infection. University of Tuebingen, Auf der Morgenstelle 28, 72070 Tuebingen, Germany
| | - Sofia Friães
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Avenida da República (EAN), 2780-157 Oeiras, Portugal
| | - Beatriz Royo
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Avenida da República (EAN), 2780-157 Oeiras, Portugal
| | - Tanja Schneider
- Institute for Pharmaceutical Microbiology, University of Bonn, University Clinic Bonn, Meckenheimer Allee 168, 53115 Bonn, Germany
| | - Heike Brötz-Oesterhelt
- Interfaculty Institute of Microbiology and Infection Medicine, Dept. of Microbial Bioactive Compounds, Cluster of Excellence Controlling Microbes to Fight Infection. University of Tuebingen, Auf der Morgenstelle 28, 72070 Tuebingen, Germany
| | - Carlos C Romão
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Avenida da República (EAN), 2780-157 Oeiras, Portugal
| | - Lígia M Saraiva
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Avenida da República (EAN), 2780-157 Oeiras, Portugal
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