1
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Mandelbaum N, Zhang L, Carasso S, Ziv T, Lifshiz-Simon S, Davidovich I, Luz I, Berinstein E, Gefen T, Cooks T, Talmon Y, Balskus EP, Geva-Zatorsky N. Extracellular vesicles of the Gram-positive gut symbiont Bifidobacterium longum induce immune-modulatory, anti-inflammatory effects. NPJ Biofilms Microbiomes 2023; 9:30. [PMID: 37270554 DOI: 10.1038/s41522-023-00400-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Accepted: 05/18/2023] [Indexed: 06/05/2023] Open
Abstract
The gut microbiota is now well known to affect the host's immune system. One way of bacterial communication with host cells is via the secretion of vesicles, small membrane structures containing various cargo. Research on vesicles secreted by Gram-positive gut bacteria, their mechanisms of interaction with the host and their immune-modulatory effects are still relatively scarce. Here we characterized the size, protein content, and immune-modulatory effects of extracellular vesicles (EVs) secreted by a newly sequenced Gram-positive human gut symbiont strain - Bifidobacterium longum AO44. We found that B. longum EVs exert anti-inflammatory effects, inducing IL-10 secretion from both splenocytes and dendritic cells (DC)-CD4+ T cells co-cultures. Furthermore, the EVs protein content showed enrichment in ABC transporters, quorum sensing proteins, and extracellular solute-binding proteins, which were previously shown to have a prominent function in the anti-inflammatory effect of other strains of B. longum. This study underlines the importance of bacterial vesicles in facilitating the gut bacterial immune-modulatory effects on the host and sheds light on bacterial vesicles as future therapeutics.
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Affiliation(s)
- Noa Mandelbaum
- Department of Cell Biology and Cancer Science, Rappaport Faculty of Medicine and Research Institute, Rappaport Technion Integrated Cancer Center (RTICC), Technion-Israel Institute of Technology, Haifa, 31096, Israel
| | - Lihan Zhang
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA, USA
| | - Shaqed Carasso
- Department of Cell Biology and Cancer Science, Rappaport Faculty of Medicine and Research Institute, Rappaport Technion Integrated Cancer Center (RTICC), Technion-Israel Institute of Technology, Haifa, 31096, Israel
| | - Tamar Ziv
- Smoler Proteomics Center, Lokey Interdisciplinary Center for Life Sciences & Engineering, Technion-Israel Institute of Technology, Haifa, 3200003, Israel
| | - Sapir Lifshiz-Simon
- Department of Chemical Engineering and the Russell Berrie Nanotechnology Institute (RBNI), Technion-Israel Institute of Technology, Haifa, 3200003, Israel
| | - Irina Davidovich
- Department of Chemical Engineering and the Russell Berrie Nanotechnology Institute (RBNI), Technion-Israel Institute of Technology, Haifa, 3200003, Israel
| | - Ishai Luz
- The Shraga Segal Department of Microbiology, Immunology and Genetics, Faculty of Health Sciences, Ben-Gurion University, Beer-Sheva, 84105, Israel
| | - Elliot Berinstein
- Department of Cell Biology and Cancer Science, Rappaport Faculty of Medicine and Research Institute, Rappaport Technion Integrated Cancer Center (RTICC), Technion-Israel Institute of Technology, Haifa, 31096, Israel
| | - Tal Gefen
- Department of Cell Biology and Cancer Science, Rappaport Faculty of Medicine and Research Institute, Rappaport Technion Integrated Cancer Center (RTICC), Technion-Israel Institute of Technology, Haifa, 31096, Israel
| | - Tomer Cooks
- The Shraga Segal Department of Microbiology, Immunology and Genetics, Faculty of Health Sciences, Ben-Gurion University, Beer-Sheva, 84105, Israel
| | - Yeshayahu Talmon
- Department of Chemical Engineering and the Russell Berrie Nanotechnology Institute (RBNI), Technion-Israel Institute of Technology, Haifa, 3200003, Israel
| | - Emily P Balskus
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA, USA
- Howard Hughes Medical Institute, Harvard University, Cambridge, MA, USA
| | - Naama Geva-Zatorsky
- Department of Cell Biology and Cancer Science, Rappaport Faculty of Medicine and Research Institute, Rappaport Technion Integrated Cancer Center (RTICC), Technion-Israel Institute of Technology, Haifa, 31096, Israel.
- Humans and the Microbiome, CIFAR, Toronto, Canada.
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2
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Pendiuk Goncalves J, Walker SA, Aguilar Díaz de León JS, Yang Y, Davidovich I, Busatto S, Sarkaria J, Talmon Y, Borges CR, Wolfram J. Glycan Node Analysis Detects Varying Glycosaminoglycan Levels in Melanoma-Derived Extracellular Vesicles. Int J Mol Sci 2023; 24:ijms24108506. [PMID: 37239852 DOI: 10.3390/ijms24108506] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 05/07/2023] [Accepted: 05/08/2023] [Indexed: 05/28/2023] Open
Abstract
Extracellular vesicles (EVs) play important roles in (patho)physiological processes by mediating cell communication. Although EVs contain glycans and glycosaminoglycans (GAGs), these biomolecules have been overlooked due to technical challenges in comprehensive glycome analysis coupled with EV isolation. Conventional mass spectrometry (MS)-based methods are restricted to the assessment of N-linked glycans. Therefore, methods to comprehensively analyze all glyco-polymer classes on EVs are urgently needed. In this study, tangential flow filtration-based EV isolation was coupled with glycan node analysis (GNA) as an innovative and robust approach to characterize most major glyco-polymer features of EVs. GNA is a molecularly bottom-up gas chromatography-MS technique that provides unique information that is unobtainable with conventional methods. The results indicate that GNA can identify EV-associated glyco-polymers that would remain undetected with conventional MS methods. Specifically, predictions based on GNA identified a GAG (hyaluronan) with varying abundance on EVs from two different melanoma cell lines. Enzyme-linked immunosorbent assays and enzymatic stripping protocols confirmed the differential abundance of EV-associated hyaluronan. These results lay the framework to explore GNA as a tool to assess major glycan classes on EVs, unveiling the EV glycocode and its biological functions.
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Affiliation(s)
- Jenifer Pendiuk Goncalves
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Sierra A Walker
- Department of Biochemistry and Molecular Biology, Department of Physiology and Biomedical Engineering, Department of Transplantation, Mayo Clinic, Jacksonville, FL 32224, USA
| | - Jesús S Aguilar Díaz de León
- School of Molecular Sciences and Virginia G. Piper Center for Personalized Diagnostics, The Biodesign Institute at Arizona State University, Tempe, AZ 85287, USA
| | - Yubo Yang
- Department of Biochemistry and Molecular Biology, Department of Physiology and Biomedical Engineering, Department of Transplantation, Mayo Clinic, Jacksonville, FL 32224, USA
| | - Irina Davidovich
- Department of Chemical Engineering and the Russell Berrie Nanotechnology Institute (RBNI), Technion-Israel Institute of Technology, Haifa 3200003, Israel
| | - Sara Busatto
- Vascular Biology Program, Boston Children's Hospital, Boston, MA 02115, USA
- Department of Surgery, Harvard Medical School, Boston, MA 02115, USA
| | - Jann Sarkaria
- Department of Radiation Oncology, Mayo Clinic, Rochester, MN 55902, USA
| | - Yeshayahu Talmon
- Department of Chemical Engineering and the Russell Berrie Nanotechnology Institute (RBNI), Technion-Israel Institute of Technology, Haifa 3200003, Israel
| | - Chad R Borges
- School of Molecular Sciences and Virginia G. Piper Center for Personalized Diagnostics, The Biodesign Institute at Arizona State University, Tempe, AZ 85287, USA
| | - Joy Wolfram
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, QLD 4072, Australia
- School of Chemical Engineering, The University of Queensland, Brisbane, QLD 4072, Australia
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3
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Broad K, Walker SA, Davidovich I, Witwer K, Talmon Y, Wolfram J. Unraveling multilayered extracellular vesicles: Speculation on cause. J Extracell Vesicles 2023; 12:e12309. [PMID: 36732941 PMCID: PMC9895808 DOI: 10.1002/jev2.12309] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 01/17/2023] [Accepted: 01/23/2023] [Indexed: 02/04/2023] Open
Abstract
Extracellular vesicles (EVs) are cell-released, heterogenous nanoparticles that play important roles in (patho)physiological processes through intercellular communication. EVs are often depicted as having a single lipid bilayer, but many studies have demonstrated the existence of multilayered EVs. There has been minimal inquiry into differences between unilamellar and multilamellar EVs in terms of biogenesis mechanisms and functional effects. This commentary speculates on potential causes and roles of multilamellar EVs and serves as a call to action for the research community to unravel the complex layers of EVs.
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Affiliation(s)
- Kelly Broad
- Department of Biochemistry and Molecular BiologyDepartment of Physiology and Biomedical EngineeringDepartment of TransplantationMayo ClinicJacksonvilleFloridaUSA,Skaggs Graduate School of Chemical and Biological SciencesUniversity of Florida Scripps Biomedical ResearchJupiterFloridaUSA
| | - Sierra A. Walker
- Department of Biochemistry and Molecular BiologyDepartment of Physiology and Biomedical EngineeringDepartment of TransplantationMayo ClinicJacksonvilleFloridaUSA
| | - Irina Davidovich
- Department of Chemical Engineering and the Russell Berrie Nanotechnology Institute (RBNI)Technion‐Israel Institute of TechnologyHaifaIsrael
| | - Kenneth Witwer
- Department of Molecular and Comparative PathobiologyThe Johns Hopkins University School of MedicineBaltimoreMarylandUSA,Department of NeurologyThe Johns Hopkins University School of MedicineBaltimoreMarylandUSA
| | - Yeshayahu Talmon
- Department of Chemical Engineering and the Russell Berrie Nanotechnology Institute (RBNI)Technion‐Israel Institute of TechnologyHaifaIsrael
| | - Joy Wolfram
- School of Chemical EngineeringThe University of QueenslandBrisbaneQueenslandAustralia,Australian Institute for Bioengineering and NanotechnologyThe University of QueenslandBrisbaneQueenslandAustralia,Department of NanomedicineHouston Methodist Research InstituteHoustonTexasUSA
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4
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Walker SA, Davidovich I, Yang Y, Lai A, Goncalves JP, Deliwala V, Busatto S, Shapiro S, Koifman N, Salomon C, Talmon Y, Wolfram J. Sucrose-based cryoprotective storage of extracellular vesicles. Extracell Vesicle 2022; 1:100016. [PMID: 38665624 PMCID: PMC11044822 DOI: 10.1016/j.vesic.2022.100016] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/28/2024]
Abstract
Advancements in extracellular vesicle (EV) studies necessitate the development of optimized storage conditions to ensure preservation of physical and biochemical characteristics. In this study, the most common buffer for EV storage (phosphate-buffered saline/PBS) was compared to a cryoprotective 5% sucrose solution. The size distribution and concentration of EVs from two different sources changed to a greater extent after -80 °C storage in PBS compared to the sucrose solution. Additionally, molecular surface protrusions and transmembrane proteins were more prevalent in EVs stored in the sucrose solution compared to those stored in PBS. This study demonstrates, for the first time, that distinct ring-like molecular complexes and cristae-like folded membranous structures are visible upon EV degradation. Taken together, the size, concentration, molecular surface extensions, and transmembrane proteins of EVs varied substantially based on the buffer used for -80 °C storage, suggesting that biocompatible cryoprotectants, such as sucrose, should be considered for EV studies.
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Affiliation(s)
- Sierra A. Walker
- Department of Biochemistry and Molecular Biology, Department of Physiology and Biomedical Engineering, Department of Transplantation, Mayo Clinic, Jacksonville, FL 32224, USA
| | - Irina Davidovich
- Department of Chemical Engineering and the Russell Berrie Nanotechnology Institute (RBNI), Technion-Israel Institute of Technology, Haifa 3200003, Israel
| | - Yubo Yang
- Department of Biochemistry and Molecular Biology, Department of Physiology and Biomedical Engineering, Department of Transplantation, Mayo Clinic, Jacksonville, FL 32224, USA
| | - Andrew Lai
- Exosome Biology Laboratory, Centre for Clinical Diagnostics, University of Queensland Centre for Clinical Research, Royal Brisbane and Women’s Hospital, Faculty of Medicine, The University of Queensland, Brisbane, QLD 4006, Australia
| | - Jenifer Pendiuk Goncalves
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, QLD 4072, Australia
- School of Chemical Engineering, The University of Queensland, Brisbane, QLD, Australia
| | - Vatsal Deliwala
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, QLD 4072, Australia
- School of Chemical Engineering, The University of Queensland, Brisbane, QLD, Australia
| | - Sara Busatto
- Vascular Biology Program, Boston Children’s Hospital, Boston, MA 02115, United States
- Department of Surgery, Harvard Medical School, Boston, MA 02115, United States
| | - Shane Shapiro
- Department of Orthopedic Surgery, Mayo Clinic, Jacksonville, FL 32224, USA
| | - Na’ama Koifman
- Center of Microscopy and Microanalysis, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Carlos Salomon
- Exosome Biology Laboratory, Centre for Clinical Diagnostics, University of Queensland Centre for Clinical Research, Royal Brisbane and Women’s Hospital, Faculty of Medicine, The University of Queensland, Brisbane, QLD 4006, Australia
- Departamento de Investigación, Postgrado y Educación Continua (DIPEC), Facultad de Ciencias de la Salud, Universidad del Alba, Santiago 8320000, Chile
| | - Yeshayahu Talmon
- Department of Chemical Engineering and the Russell Berrie Nanotechnology Institute (RBNI), Technion-Israel Institute of Technology, Haifa 3200003, Israel
| | - Joy Wolfram
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, QLD 4072, Australia
- School of Chemical Engineering, The University of Queensland, Brisbane, QLD, Australia
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5
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Yang M, Walker SA, Aguilar Díaz de León JS, Davidovich I, Broad K, Talmon Y, Borges CR, Wolfram J. Extracellular vesicle glucose transporter-1 and glycan features in monocyte-endothelial inflammatory interactions. Nanomedicine 2022; 42:102515. [PMID: 35074500 DOI: 10.1016/j.nano.2022.102515] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 11/10/2021] [Accepted: 01/02/2022] [Indexed: 02/06/2023]
Abstract
Monocyte-induced endothelial cell inflammation is associated with multiple pathological conditions, and extracellular vesicles (EVs) are essential nanosized components of intercellular communication. EVs derived from endotoxin-stimulated monocytes were previously shown to carry pro-inflammatory proteins and RNAs. The role of glucose transporter-1 (GLUT-1) and glycan features in monocyte-derived EV-induced endothelial cell inflammation remains largely unexplored. This study demonstrates that EVs derived from endotoxin-stimulated monocytes activate inflammatory pathways in endothelial cells, which are partially attributed to GLUT-1. Alterations in glycan features and increased levels of GLUT-1 were observed in EVs derived from endotoxin-stimulated monocytes. Notably, inhibition of EV-associated GLUT-1, through the use of fasentin, suppressed EV-induced inflammatory cytokines in recipient endothelial cells.
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Affiliation(s)
- Man Yang
- Department of Biochemistry and Molecular Biology, Department of Physiology and Biomedical Engineering, Department of Transplantation, Mayo Clinic, Jacksonville, FL, USA; School of Public Health and Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, China
| | - Sierra A Walker
- Department of Biochemistry and Molecular Biology, Department of Physiology and Biomedical Engineering, Department of Transplantation, Mayo Clinic, Jacksonville, FL, USA
| | - Jesús S Aguilar Díaz de León
- School of Molecular Sciences and Virginia G. Piper Center for Personalized Diagnostics, The Biodesign Institute at Arizona State University, Tempe, AZ, USA
| | - Irina Davidovich
- Department of Chemical Engineering and the Russell Berrie Nanotechnology Institute (RBNI), Technion-Israel Institute of Technology, Haifa, Israel
| | - Kelly Broad
- Department of Biochemistry and Molecular Biology, Department of Physiology and Biomedical Engineering, Department of Transplantation, Mayo Clinic, Jacksonville, FL, USA
| | - Yeshayahu Talmon
- Department of Chemical Engineering and the Russell Berrie Nanotechnology Institute (RBNI), Technion-Israel Institute of Technology, Haifa, Israel.
| | - Chad R Borges
- School of Molecular Sciences and Virginia G. Piper Center for Personalized Diagnostics, The Biodesign Institute at Arizona State University, Tempe, AZ, USA.
| | - Joy Wolfram
- Department of Biochemistry and Molecular Biology, Department of Physiology and Biomedical Engineering, Department of Transplantation, Mayo Clinic, Jacksonville, FL, USA; Department of Nanomedicine, Houston Methodist Research Institute, Houston, TX, USA; Australian Institute for Bioengineering and Nanotechnology, University of Queensland, Brisbane, QLD, Australia (present affiliation); School of Chemical Engineering, University of Queensland, Brisbane, QLD, Australia (present affiliation).
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6
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Busatto S, Yang Y, Iannotta D, Davidovich I, Talmon Y, Wolfram J. Considerations for extracellular vesicle and lipoprotein interactions in cell culture assays. J Extracell Vesicles 2022; 11:e12202. [PMID: 35362268 PMCID: PMC8971175 DOI: 10.1002/jev2.12202] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Accepted: 02/25/2022] [Indexed: 12/11/2022] Open
Abstract
With an exponential increase in extracellular vesicle (EV) studies in the past decade, focus has been placed on standardization of experimental design to ensure inter‐study comparisons and validity of conclusions. In the case of in vitro assays, the composition of cell culture media is important to consider for EV studies. In particular, levels of lipoproteins, which are critical components of the interstitial fluid, should be taken into consideration. Results from this study reveal that lipoprotein levels in cell culture medium impact the effects that EVs have on recipient cells. Additionally, evidence of EV binding and fusion to lipoprotein‐like structures in plasma is provided. However, it is unclear whether the impact of lipoproteins in cell culture is due to direct interactions with EVs, indirect effects, or a combination of both mechanisms. Taken together, cell culture studies performed in the absence of physiological levels of lipoproteins are unlikely to reflect interactions that occur between EVs and recipient cells in an in vivo environment.
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Affiliation(s)
- Sara Busatto
- Vascular Biology Program, Boston Children's Hospital, Boston, Massachusetts, USA.,Department of Surgery, Harvard Medical School, Boston, Massachusetts, USA
| | - Yubo Yang
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Jacksonville, Florida, USA
| | - Dalila Iannotta
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Jacksonville, Florida, USA.,Department of Pharmacy, University of Chieti-Pescara "G. d'Annunzio", Chieti, Italy
| | - Irina Davidovich
- Department of Chemical Engineering and the Russell Berrie Nanotechnology Institute, Technion-Israel Institute of Technology, Haifa, Israel
| | - Yeshayahu Talmon
- Department of Chemical Engineering and the Russell Berrie Nanotechnology Institute, Technion-Israel Institute of Technology, Haifa, Israel
| | - Joy Wolfram
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Jacksonville, Florida, USA.,Australian Institute for Bioengineering and Nanotechnology, University of Queensland, Brisbane, QLD, Australia.,School of Chemical Engineering, University of Queensland, Brisbane, QLD, Australia
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7
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Wang X, Pham A, Kang L, Walker SA, Davidovich I, Iannotta D, TerKonda SP, Shapiro S, Talmon Y, Pham S, Wolfram J. Effects of Adipose-Derived Biogenic Nanoparticle-Associated microRNA-451a on Toll-like Receptor 4-Induced Cytokines. Pharmaceutics 2021; 14:16. [PMID: 35056912 PMCID: PMC8780819 DOI: 10.3390/pharmaceutics14010016] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Revised: 12/16/2021] [Accepted: 12/20/2021] [Indexed: 12/13/2022] Open
Abstract
Extracellular vesicles (EVs) are cell-released nanoparticles that transfer biomolecular content between cells. Among EV-associated biomolecules, microRNAs (miRNAs/miRs) represent one of the most important modulators of signaling pathways in recipient cells. Previous studies have shown that EVs from adipose-derived mesenchymal stromal cells (MSCs) and adipose tissue modulate inflammatory pathways in macrophages. In this study, the effects of miRNAs that are abundant in adipose tissue EVs and other biogenic nanoparticles (BiNPs) were assessed in terms of altering Toll-like receptor 4 (TLR4)-induced cytokines. TLR-4 signaling in macrophages is often triggered by pathogen or damage-induced inflammation and is associated with several diseases. This study demonstrates that miR-451a, which is abundant in adipose tissue BiNPs, suppresses pro-inflammatory cytokines and increases anti-inflammatory cytokines associated with the TLR4 pathway. Therefore, miR-451a may be partially responsible for immunomodulatory effects of adipose tissue-derived BiNPs.
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Affiliation(s)
- Xinghua Wang
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Jacksonville, FL 32224, USA; (X.W.); (A.P.); (S.A.W.); (D.I.)
| | - Anthony Pham
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Jacksonville, FL 32224, USA; (X.W.); (A.P.); (S.A.W.); (D.I.)
| | - Lu Kang
- Department of Cardiothoracic Surgery, Mayo Clinic, Jacksonville, FL 32224, USA;
| | - Sierra A. Walker
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Jacksonville, FL 32224, USA; (X.W.); (A.P.); (S.A.W.); (D.I.)
| | - Irina Davidovich
- Department of Chemical Engineering and the Russell Berrie Nanotechnology Institute (RBNI), Technion-Israel Institute of Technology, Haifa 3200003, Israel; (I.D.); (Y.T.)
| | - Dalila Iannotta
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Jacksonville, FL 32224, USA; (X.W.); (A.P.); (S.A.W.); (D.I.)
| | - Sarvam P. TerKonda
- Department of Plastic Surgery, Mayo Clinic, Jacksonville, FL 32224, USA;
| | - Shane Shapiro
- Center for Regenerative Medicine, Mayo Clinic, Jacksonville, FL 32224, USA;
- Department of Orthopedic Surgery, Mayo Clinic, Jacksonville, FL 32224, USA
| | - Yeshayahu Talmon
- Department of Chemical Engineering and the Russell Berrie Nanotechnology Institute (RBNI), Technion-Israel Institute of Technology, Haifa 3200003, Israel; (I.D.); (Y.T.)
| | - Si Pham
- Department of Cardiothoracic Surgery, Mayo Clinic, Jacksonville, FL 32224, USA;
| | - Joy Wolfram
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Jacksonville, FL 32224, USA; (X.W.); (A.P.); (S.A.W.); (D.I.)
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, TX 77030, USA
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8
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Albuquerque LJC, Sincari V, Jäger A, Kucka J, Humajova J, Pankrac J, Paral P, Heizer T, Janouškova O, Davidovich I, Talmon Y, Pouckova P, Štěpánek P, Sefc L, Hruby M, Giacomelli FC, Jäger E. pH-responsive polymersome-mediated delivery of doxorubicin into tumor sites enhances the therapeutic efficacy and reduces cardiotoxic effects. J Control Release 2021; 332:529-538. [PMID: 33716094 DOI: 10.1016/j.jconrel.2021.03.013] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Revised: 02/11/2021] [Accepted: 03/09/2021] [Indexed: 12/14/2022]
Abstract
The delivery of therapeutics into sites of action by using cargo-delivery platforms potentially minimizes their premature degradation and fast clearance from the bloodstream. Additionally, drug-loaded stimuli-responsive supramolecular assemblies can be produced to respond to the inherent features of tumor microenvironments, such as extracellular acidosis. We report in this framework the use of pH-responsive polymersomes (PSs) manufactured using poly([N-(2-hydroxypropyl)] methacrylamide)35-b-poly[2-(diisopropylamino)ethyl methacrylate]75 as the building unit (PHPMA35-b-PDPA75). The self-assemblies were produced with desired size towards long circulation time and tumor accumulation (hydrodynamic diameter - DH ~ 100 nm), and they could be successfully loaded with 10% w/w DOX (doxorubicin), while maintaining colloidal stability. The DOX loaded amount is presumably mainly burst-released at the acidic microenvironment of tumors thanks to the pH-switchable property of PDPA (pKa ~ 6.8), while reduced drug leakage has been monitored in pH 7.4. Compared to the administration of free DOX, the drug-loaded supramolecular structures greatly enhanced the therapeutic efficacy with effective growth inhibition of EL4 lymphoma tumor model and 100% survival rate in female C57BL/6 black mice over 40 days. The approach also led to reduced cardiotoxic effect. These features highlight the potential application of such nanotechnology-based treatment in a variety of cancer therapies where low local pH is commonly found, and emphasize PHPMA-based nanomedicines as an alternative to PEGylated formulations.
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Affiliation(s)
- Lindomar J C Albuquerque
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Heyrovského nám. 2, 162 06 Prague 6, Czech Republic; Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Avenida dos Estados 5001, Santo André 09210-580, Brazil.
| | - Vladimir Sincari
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Heyrovského nám. 2, 162 06 Prague 6, Czech Republic
| | - Alessandro Jäger
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Heyrovského nám. 2, 162 06 Prague 6, Czech Republic
| | - Jan Kucka
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Heyrovského nám. 2, 162 06 Prague 6, Czech Republic
| | - Jana Humajova
- Institute of Biophysics and Informatics, First Faculty of Medicine, Charles University, Salmovska, 1, 120 00 Prague, Czech Republic
| | - Jan Pankrac
- Center for Advanced Preclinical Imaging (CAPI), First Faculty of Medicine, Charles University, Salmovská 3, Prague 2, 120 00, Czech Republic
| | - Petr Paral
- Center for Advanced Preclinical Imaging (CAPI), First Faculty of Medicine, Charles University, Salmovská 3, Prague 2, 120 00, Czech Republic
| | - Tomas Heizer
- Center for Advanced Preclinical Imaging (CAPI), First Faculty of Medicine, Charles University, Salmovská 3, Prague 2, 120 00, Czech Republic
| | - Olga Janouškova
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Heyrovského nám. 2, 162 06 Prague 6, Czech Republic
| | - Irina Davidovich
- Department of Chemical Engineering and the Russell Berrie Nanotechnology Institute (RBNI), Technion-Israel Institute of Technology, Haifa 3200003, Israel
| | - Yeshayahu Talmon
- Department of Chemical Engineering and the Russell Berrie Nanotechnology Institute (RBNI), Technion-Israel Institute of Technology, Haifa 3200003, Israel
| | - Pavla Pouckova
- Institute of Biophysics and Informatics, First Faculty of Medicine, Charles University, Salmovska, 1, 120 00 Prague, Czech Republic
| | - Petr Štěpánek
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Heyrovského nám. 2, 162 06 Prague 6, Czech Republic
| | - Ludek Sefc
- Center for Advanced Preclinical Imaging (CAPI), First Faculty of Medicine, Charles University, Salmovská 3, Prague 2, 120 00, Czech Republic
| | - Martin Hruby
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Heyrovského nám. 2, 162 06 Prague 6, Czech Republic
| | - Fernando C Giacomelli
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Avenida dos Estados 5001, Santo André 09210-580, Brazil
| | - Eliézer Jäger
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Heyrovského nám. 2, 162 06 Prague 6, Czech Republic.
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9
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Liberman L, Schmidt PW, Coughlin ML, Ya’akobi AM, Davidovich I, Edmund J, Ertem SP, Morozova S, Talmon Y, Bates FS, Lodge TP. Salt-Dependent Structure in Methylcellulose Fibrillar Gels. Macromolecules 2021. [DOI: 10.1021/acs.macromol.0c02429] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Lucy Liberman
- Department of Chemical Engineering & Materials Science, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Peter W. Schmidt
- Department of Chemical Engineering & Materials Science, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - McKenzie L. Coughlin
- Department of Chemical Engineering & Materials Science, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Asia Matatyaho Ya’akobi
- Department of Chemical Engineering, and the Russell Berrie Nanotechnology Institute, Technion–Israel Institute of Technology, Haifa 3200003, Israel
| | - Irina Davidovich
- Department of Chemical Engineering, and the Russell Berrie Nanotechnology Institute, Technion–Israel Institute of Technology, Haifa 3200003, Israel
| | - Jerrick Edmund
- Department of Chemical Engineering & Materials Science, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - S. Piril Ertem
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Svetlana Morozova
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
- Department of Macomolecular Science and Engineering, Case Western Reserve University, Cleveland, Ohio 44106, United States
| | - Yeshayahu Talmon
- Department of Chemical Engineering, and the Russell Berrie Nanotechnology Institute, Technion–Israel Institute of Technology, Haifa 3200003, Israel
| | - Frank S. Bates
- Department of Chemical Engineering & Materials Science, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Timothy P. Lodge
- Department of Chemical Engineering & Materials Science, University of Minnesota, Minneapolis, Minnesota 55455, United States
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
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10
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Tatini D, Raudino M, Ambrosi M, Carretti E, Davidovich I, Talmon Y, Ninham BW, Lo Nostro P. Physicochemical characterization of green sodium oleate-based formulations. Part 1. Structure and rheology. J Colloid Interface Sci 2021; 590:238-248. [PMID: 33548607 DOI: 10.1016/j.jcis.2021.01.040] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 01/14/2021] [Accepted: 01/15/2021] [Indexed: 11/29/2022]
Abstract
HYPOTHESIS The structure, rheology and other physicochemical properties of dilute aqueous dispersions of sodium oleate (NaOL) are well known. This paper is the first report in which a moderately concentrated (13% w/w) dispersion of NaOL in water is investigated. In fact, at this concentration the phase and rheology behavior of the surfactant remarkably deviates from those of its dilute solutions in water and a significant effect is imparted by the addition of potassium chloride. EXPERIMENTAL The structural, thermal and rheological properties of a 13% w/w dispersion of NaOL in water were investigated by cryo-TEM, rheology, and DSC experiments with and without the addition of potassium chloride. The system is comprised of elongated wormlike micelles that turn into a gel-like more disordered viscous material upon addition of small amounts of KCl (4% w/w). FINDINGS This paper illustrates the multifaceted behavior of sodium oleate dispersions at intermediate concentrations that depends on the presence of other cosolutes (such as KCl). The results show that viscoelastic aqueous dispersions of NaOL are excellent candidates for the preparation of stimuli-responsive green materials to be used in a number of different applications. We also discuss the genesis of wormlike micelles (WLMs) in terms of the general theory of self-assembly.
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Affiliation(s)
- Duccio Tatini
- Department of Chemistry "Ugo Schiff" and CSGI, University of Florence, 50019 Sesto Fiorentino (Firenze), Italy
| | - Martina Raudino
- Department of Chemistry "Ugo Schiff" and CSGI, University of Florence, 50019 Sesto Fiorentino (Firenze), Italy
| | - Moira Ambrosi
- Department of Chemistry "Ugo Schiff" and CSGI, University of Florence, 50019 Sesto Fiorentino (Firenze), Italy
| | - Emiliano Carretti
- Department of Chemistry "Ugo Schiff" and CSGI, University of Florence, 50019 Sesto Fiorentino (Firenze), Italy
| | - Irina Davidovich
- Department of Chemical Engineering and the Russell Berrie Nanotechnology Institute (RBNI), Technion - Israel Institute of Technology, Haifa 3200003, Israel
| | - Yeshayahu Talmon
- Department of Chemical Engineering and the Russell Berrie Nanotechnology Institute (RBNI), Technion - Israel Institute of Technology, Haifa 3200003, Israel
| | - Barry W Ninham
- Department of Applied Mathematics, Research School of Physical Sciences and Engineering, Australian National University, Canberra ACT 0200, Australia
| | - Pierandrea Lo Nostro
- Department of Chemistry "Ugo Schiff" and CSGI, University of Florence, 50019 Sesto Fiorentino (Firenze), Italy.
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11
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Alves L, Medronho B, Filipe A, Romano A, Rasteiro MG, Lindman B, Topgaard D, Davidovich I, Talmon Y. Revisiting the dissolution of cellulose in H 3PO 4(aq) through cryo-TEM, PTssNMR and DWS. Carbohydr Polym 2020; 252:117122. [PMID: 33183588 DOI: 10.1016/j.carbpol.2020.117122] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 07/06/2020] [Accepted: 09/15/2020] [Indexed: 10/23/2022]
Abstract
Cellulose can be dissolved in concentrated acidic aqueous solvents forming extremely viscous solutions, and, in some cases, liquid crystalline phases. In this work, the concentrated phosphoric acid aqueous solvent is revisited implementing a set of advanced techniques, such as cryo-transmission electronic microscopy (cryo-TEM), polarization transfer solid-state nuclear magnetic resonance (PTssNMR), and diffusing wave spectroscopy (DWS). Cryo-TEM images confirm that this solvent system is capable to efficiently dissolve cellulose. No cellulose particles, fibrils, or aggregates are visible. Conversely, PTssNMR revealed a dominant CP signal at 25 °C, characteristic of C-H bond reorientation with correlation time longer than 100 ns and/or order parameter above 0.5, which was ascribed to a transient gel-like network or an anisotropic liquid crystalline phase. Increasing the temperature leads to a gradual transition from CP to INEPT-dominant signal and a loss of birefringence in optical microscopy, suggesting an anisotropic-to-isotropic phase transition. Finally, an excellent agreement between optical microrheology and conventional mechanical rheometry was also obtained.
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Affiliation(s)
- Luís Alves
- CIEPQPF, Department of Chemical Engineering, University of Coimbra, Pólo II - R. Silvio Lima, 3030-790 Coimbra, Portugal.
| | - Bruno Medronho
- MED - Mediterranean Institute for Agriculture, Environment and Development, University of Algarve, Faculty of Sciences and Technology, Campus de Gambelas, Ed. 8, 8005-139 Faro, Portugal; FSCN, Surface and Colloid Engineering, Mid Sweden University, SE-851 70 Sundsvall, Sweden
| | - Alexandra Filipe
- CIEPQPF, Department of Chemical Engineering, University of Coimbra, Pólo II - R. Silvio Lima, 3030-790 Coimbra, Portugal
| | - Anabela Romano
- MED - Mediterranean Institute for Agriculture, Environment and Development, University of Algarve, Faculty of Sciences and Technology, Campus de Gambelas, Ed. 8, 8005-139 Faro, Portugal
| | - Maria G Rasteiro
- CIEPQPF, Department of Chemical Engineering, University of Coimbra, Pólo II - R. Silvio Lima, 3030-790 Coimbra, Portugal
| | - Björn Lindman
- FSCN, Surface and Colloid Engineering, Mid Sweden University, SE-851 70 Sundsvall, Sweden; Division of Physical Chemistry, Department of Chemistry, Center for Chemistry and Chemical Engineering, Lund University, SE-221 00 Lund, Sweden
| | - Daniel Topgaard
- Division of Physical Chemistry, Department of Chemistry, Center for Chemistry and Chemical Engineering, Lund University, SE-221 00 Lund, Sweden
| | - Irina Davidovich
- Chemical Engineering, Technion-Israel Institute of Technology, Haifa 3200003, Israel
| | - Yeshayahu Talmon
- Chemical Engineering, Technion-Israel Institute of Technology, Haifa 3200003, Israel
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12
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Liberman L, Kleinerman O, Davidovich I, Talmon Y. Micrograph contrast in low-voltage SEM and cryo-SEM. Ultramicroscopy 2020; 218:113085. [PMID: 32771863 DOI: 10.1016/j.ultramic.2020.113085] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Revised: 04/20/2020] [Accepted: 07/27/2020] [Indexed: 10/23/2022]
Abstract
Modern high-resolution scanning electron microscopes (SEM), equipped with field emission guns (FEGs), designed to operate at low acceleration voltage, have opened new opportunities to study conductive or insulating systems, without conductive coating. Better electron sources, optics, vacuum, and detectors allow high-resolution SEM to serve as a powerful characterization and analytical tool, and provide invaluable information about structure-property relations of nanomaterials and related applications. Slight specimen charging can be exploited to enhance contrast between different materials and phases, with minimum imaging artifacts. Optimization of charging effects and improved micrograph contrast are essential for the study of different-scale features in ceramics, polymers, organic materials, and thermally fixed liquids, including in biological research. The operating SEM parameters can be adjusted to a specific specimen based on prior knowledge of interaction of the electron beam with similar specimens, and the type of information one wishes to acquire. In this work we examined the effect of the acceleration voltage and the use of different detectors on the contrast formation in several types of specimens, focusing on materials formed mainly of carbon and oxygen, with low inherent contrast in the SEM. That includes cryogenic SEM (cryo-SEM) to study emulsions in their native state. We also studied by cryo-SEM carbon nanotubes (CNTs) dispersed in water and dissolved in superacid. HR-SEM at room temperature was performed on CNT films, deposited on glass. We show how micrograph contrast changes with different detectors, at different acceleration voltages. Judicious selection of the SEM operation parameters leads to optimal picture contrast between domains of different composition.
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Affiliation(s)
- Lucy Liberman
- Department of Chemical Engineering and the Russell Berrie Nanotechnology Institute (RBNI), Technion-Israel Institute of Technology, Haifa 3200003, Israel
| | - Olga Kleinerman
- Department of Materials Science & Engineering, Technion-Israel Institute of Technology, Haifa 3200003, Israel
| | - Irina Davidovich
- Department of Chemical Engineering and the Russell Berrie Nanotechnology Institute (RBNI), Technion-Israel Institute of Technology, Haifa 3200003, Israel
| | - Yeshayahu Talmon
- Department of Chemical Engineering and the Russell Berrie Nanotechnology Institute (RBNI), Technion-Israel Institute of Technology, Haifa 3200003, Israel.
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13
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Simon M, Schneck E, Noirez L, Rahn S, Davidovich I, Talmon Y, Gradzielski M. Effect of Polymer Architecture on the Phase Behavior and Structure of Polyelectrolyte/Microemulsion Complexes (PEMECs). Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c00236] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Miriam Simon
- Stranski-Laboratorium für Physikalische und Theoretische Chemie, Institut für Chemie, Technische Universität Berlin, 10623 Berlin, Germany
| | - Emanuel Schneck
- Physics Department, Technische Universität Darmstadt, 64289 Darmstadt, Germany
| | - Laurence Noirez
- Laboratoire Léon Brillouin (CEA-CNRS), University of Paris-Saclay, CEA-Saclay, 91191 Gif-sur-Yvette, France
| | - Sofia Rahn
- Stranski-Laboratorium für Physikalische und Theoretische Chemie, Institut für Chemie, Technische Universität Berlin, 10623 Berlin, Germany
| | - Irina Davidovich
- Department of Chemical Engineering and the Russell Berrie Nanotechnology Institute (RBNI), Technion—Israel Institute of Technology, Haifa 3200003, Israel
| | - Yeshayahu Talmon
- Department of Chemical Engineering and the Russell Berrie Nanotechnology Institute (RBNI), Technion—Israel Institute of Technology, Haifa 3200003, Israel
| | - Michael Gradzielski
- Stranski-Laboratorium für Physikalische und Theoretische Chemie, Institut für Chemie, Technische Universität Berlin, 10623 Berlin, Germany
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14
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Tian M, Ticer T, Wang Q, Walker S, Pham A, Suh A, Busatto S, Davidovich I, Al-Kharboosh R, Lewis-Tuffin L, Ji B, Quinones-Hinojosa A, Talmon Y, Shapiro S, Rückert F, Wolfram J. Adipose-Derived Biogenic Nanoparticles for Suppression of Inflammation. Small 2020; 16:e1904064. [PMID: 32067382 DOI: 10.1002/smll.201904064] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Revised: 10/30/2019] [Indexed: 06/10/2023]
Abstract
Extracellular vesicles secreted from adipose-derived mesenchymal stem cells (ADSCs) have therapeutic effects in inflammatory diseases. However, production of extracellular vesicles (EVs) from ADSCs is costly, inefficient, and time consuming. The anti-inflammatory properties of adipose tissue-derived EVs and other biogenic nanoparticles have not been explored. In this study, biogenic nanoparticles are obtained directly from lipoaspirate, an easily accessible and abundant source of biological material. Compared to ADSC-EVs, lipoaspirate nanoparticles (Lipo-NPs) take less time to process (hours compared to months) and cost less to produce (clinical-grade cell culture facilities are not required). The physicochemical characteristics and anti-inflammatory properties of Lipo-NPs are evaluated and compared to those of patient-matched ADSC-EVs. Moreover, guanabenz loading in Lipo-NPs is evaluated for enhanced anti-inflammatory effects. Apolipoprotein E and glycerolipids are enriched in Lipo-NPs compared to ADSC-EVs. Additionally, the uptake of Lipo-NPs in hepatocytes and macrophages is higher. Lipo-NPs and ADSC-EVs have comparable protective and anti-inflammatory effects. Specifically, Lipo-NPs reduce toll-like receptor 4-induced secretion of inflammatory cytokines in macrophages. Guanabenz-loaded Lipo-NPs further suppress inflammatory pathways, suggesting that this combination therapy can have promising applications for inflammatory diseases.
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Affiliation(s)
- Ming Tian
- Department of Biochemistry and Molecular Biology, Department of Physiology and Biomedical Engineering, Mayo Clinic, Jacksonville, FL, 32224, USA
- Department of Surgery, Surgical Lab, University Medical Center Mannheim, Medical Faculty Mannheim, Heidelberg University, Mannheim, 68167, Germany
| | - Taylor Ticer
- Department of Biochemistry and Molecular Biology, Department of Physiology and Biomedical Engineering, Mayo Clinic, Jacksonville, FL, 32224, USA
| | - Qikun Wang
- Department of Biochemistry and Molecular Biology, Department of Physiology and Biomedical Engineering, Mayo Clinic, Jacksonville, FL, 32224, USA
- Department of Surgery, Surgical Lab, University Medical Center Mannheim, Medical Faculty Mannheim, Heidelberg University, Mannheim, 68167, Germany
| | - Sierra Walker
- Department of Biochemistry and Molecular Biology, Department of Physiology and Biomedical Engineering, Mayo Clinic, Jacksonville, FL, 32224, USA
| | - Anthony Pham
- Department of Biochemistry and Molecular Biology, Department of Physiology and Biomedical Engineering, Mayo Clinic, Jacksonville, FL, 32224, USA
| | - Annie Suh
- Department of Biochemistry and Molecular Biology, Department of Physiology and Biomedical Engineering, Mayo Clinic, Jacksonville, FL, 32224, USA
| | - Sara Busatto
- Department of Biochemistry and Molecular Biology, Department of Physiology and Biomedical Engineering, Mayo Clinic, Jacksonville, FL, 32224, USA
| | - Irina Davidovich
- Department of Chemical Engineering and the Russell Berrie Nanotechnology Institute (RBNI), Technion-Israel Institute of Technology, Haifa, 3200003, Israel
| | - Rawan Al-Kharboosh
- Department of Neurosurgery, Mayo Clinic Florida, Jacksonville, FL, 32224, USA
| | | | - Baoan Ji
- Department of Cancer Biology, Mayo Clinic, Jacksonville, FL, 32224, USA
| | | | - Yeshayahu Talmon
- Department of Chemical Engineering and the Russell Berrie Nanotechnology Institute (RBNI), Technion-Israel Institute of Technology, Haifa, 3200003, Israel
| | - Shane Shapiro
- Department of Orthopedic Surgery, Mayo Clinic, Jacksonville, FL, 32224, USA
| | - Felix Rückert
- Department of Surgery, Surgical Lab, University Medical Center Mannheim, Medical Faculty Mannheim, Heidelberg University, Mannheim, 68167, Germany
| | - Joy Wolfram
- Department of Biochemistry and Molecular Biology, Department of Physiology and Biomedical Engineering, Mayo Clinic, Jacksonville, FL, 32224, USA
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15
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Schmidt PW, Morozova S, Ertem SP, Coughlin ML, Davidovich I, Talmon Y, Reineke TM, Bates FS, Lodge TP. Internal Structure of Methylcellulose Fibrils. Macromolecules 2020. [DOI: 10.1021/acs.macromol.9b01773] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
| | | | | | | | - Irina Davidovich
- Department of Chemical Engineering, and the Russell Berrie Nanotechnology Institute, Technion—Israel Institute of Technology, Haifa 3200003, Israel
| | - Yeshayahu Talmon
- Department of Chemical Engineering, and the Russell Berrie Nanotechnology Institute, Technion—Israel Institute of Technology, Haifa 3200003, Israel
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16
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Reis da Cunha F, Davidovich I, Talmon Y, Ameduri B. Emulsion copolymerization of vinylidene fluoride (VDF) with perfluoromethyl vinyl ether (PMVE). Polym Chem 2020. [DOI: 10.1039/d0py00059k] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
The radical emulsion copolymerization of vinylidene fluoride (VDF) with perfluoromethyl vinyl ether (PMVE), initiated by potassium persulfate in the presence or absence of a surfactant is presented.
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Affiliation(s)
| | - Irina Davidovich
- Department of Chemical Engineering and the Russell Berrie Nanotechnology Institute (RBNI)
- Technion-Israel Institute of Technology
- Haifa 3200003
- Israel
| | - Yeshayahu Talmon
- Department of Chemical Engineering and the Russell Berrie Nanotechnology Institute (RBNI)
- Technion-Israel Institute of Technology
- Haifa 3200003
- Israel
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17
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Duan L, Motchoulski N, Danzer B, Davidovich I, Shariat-Madar Z, Levenson VV. Prolylcarboxypeptidase regulates proliferation, autophagy, and resistance to 4-hydroxytamoxifen-induced cytotoxicity in estrogen receptor-positive breast cancer cells. J Biol Chem 2010; 286:2864-76. [PMID: 21087932 DOI: 10.1074/jbc.m110.143271] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Endocrine therapy with tamoxifen (TAM) significantly improves outcomes for patients with estrogen receptor-positive breast cancer. However, intrinsic (de novo) or acquired resistance to TAM occurs in a significant proportion of treated patients. To identify genes involved in resistance to TAM, we introduced full-length cDNA expression library into estrogen receptor-positive MCF7 cells and exposed them to a cytotoxic dose of 4-hydroxytamoxifen (4OHTAM). Four different library inserts were isolated from surviving clones. Re-introduction of the genes individually into naive MCF7 cells made them resistant to 4OHTAM. Cells overexpressing these genes had an increase in acidic autophagic vacuoles induced by 4OHTAM, suggesting their role in autophagy. One of them, prolylcarboxypeptidase (PRCP), was investigated further. Overexpression of PRCP increased cell proliferation, boosted several established markers of autophagy, including expression of LC3-2, sequestration of monodansylcadaverine, and proteolysis of BSA in an ER-α dependent manner, and increased resistance to 4OHTAM. Conversely, knockdown of endogenous PRCP in MCF7 cells increased cell sensitivity to 4OHTAM and at the same time decreased cell proliferation and expression of LC3-2, sequestration of monodansylcadaverine, and proteolysis of BSA. Inhibition of enzymatic activity of PRCP enhanced 4OHTAM-induced cytotoxicity in MCF7 cells. Cells with acquired resistance to 4OHTAM exhibited increased PRCP activity, although inhibition of PRCP prevented development of 4OHTAM resistance in parental MCF7 cells and restored response to 4OHTAM in MCF7 cells with acquired resistance to 4OHTAM. Thus, we have for the first time identified PRCP as a resistance factor for 4OHTAM resistance in estrogen receptor-positive breast cancer cells.
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Affiliation(s)
- Lei Duan
- Department of Radiation Oncology, Rush University Medical Center, Chicago, Illinois 60612, USA
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