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Welsh JA, Goberdhan DCI, O'Driscoll L, Buzas EI, Blenkiron C, Bussolati B, Cai H, Di Vizio D, Driedonks TAP, Erdbrügger U, Falcon‐Perez JM, Fu Q, Hill AF, Lenassi M, Lim SK, Mahoney MG, Mohanty S, Möller A, Nieuwland R, Ochiya T, Sahoo S, Torrecilhas AC, Zheng L, Zijlstra A, Abuelreich S, Bagabas R, Bergese P, Bridges EM, Brucale M, Burger D, Carney RP, Cocucci E, Colombo F, Crescitelli R, Hanser E, Harris AL, Haughey NJ, Hendrix A, Ivanov AR, Jovanovic‐Talisman T, Kruh‐Garcia NA, Ku'ulei‐Lyn Faustino V, Kyburz D, Lässer C, Lennon KM, Lötvall J, Maddox AL, Martens‐Uzunova ES, Mizenko RR, Newman LA, Ridolfi A, Rohde E, Rojalin T, Rowland A, Saftics A, Sandau US, Saugstad JA, Shekari F, Swift S, Ter‐Ovanesyan D, Tosar JP, Useckaite Z, Valle F, Varga Z, van der Pol E, van Herwijnen MJC, Wauben MHM, Wehman AM, Williams S, Zendrini A, Zimmerman AJ, MISEV Consortium, Théry C, Witwer KW. Minimal information for studies of extracellular vesicles (MISEV2023): From basic to advanced approaches. J Extracell Vesicles 2024; 13:e12404. [PMID: 38326288 PMCID: PMC10850029 DOI: 10.1002/jev2.12404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Revised: 12/15/2023] [Accepted: 12/19/2023] [Indexed: 02/09/2024] Open
Abstract
Extracellular vesicles (EVs), through their complex cargo, can reflect the state of their cell of origin and change the functions and phenotypes of other cells. These features indicate strong biomarker and therapeutic potential and have generated broad interest, as evidenced by the steady year-on-year increase in the numbers of scientific publications about EVs. Important advances have been made in EV metrology and in understanding and applying EV biology. However, hurdles remain to realising the potential of EVs in domains ranging from basic biology to clinical applications due to challenges in EV nomenclature, separation from non-vesicular extracellular particles, characterisation and functional studies. To address the challenges and opportunities in this rapidly evolving field, the International Society for Extracellular Vesicles (ISEV) updates its 'Minimal Information for Studies of Extracellular Vesicles', which was first published in 2014 and then in 2018 as MISEV2014 and MISEV2018, respectively. The goal of the current document, MISEV2023, is to provide researchers with an updated snapshot of available approaches and their advantages and limitations for production, separation and characterisation of EVs from multiple sources, including cell culture, body fluids and solid tissues. In addition to presenting the latest state of the art in basic principles of EV research, this document also covers advanced techniques and approaches that are currently expanding the boundaries of the field. MISEV2023 also includes new sections on EV release and uptake and a brief discussion of in vivo approaches to study EVs. Compiling feedback from ISEV expert task forces and more than 1000 researchers, this document conveys the current state of EV research to facilitate robust scientific discoveries and move the field forward even more rapidly.
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Affiliation(s)
- Joshua A. Welsh
- Translational Nanobiology Section, Laboratory of PathologyNational Cancer Institute, National Institutes of HealthBethesdaMarylandUSA
| | - Deborah C. I. Goberdhan
- Nuffield Department of Women's and Reproductive HealthUniversity of Oxford, Women's Centre, John Radcliffe HospitalOxfordUK
| | - Lorraine O'Driscoll
- School of Pharmacy and Pharmaceutical SciencesTrinity College DublinDublinIreland
- Trinity Biomedical Sciences InstituteTrinity College DublinDublinIreland
- Trinity St. James's Cancer InstituteTrinity College DublinDublinIreland
| | - Edit I. Buzas
- Department of Genetics, Cell‐ and ImmunobiologySemmelweis UniversityBudapestHungary
- HCEMM‐SU Extracellular Vesicle Research GroupSemmelweis UniversityBudapestHungary
- HUN‐REN‐SU Translational Extracellular Vesicle Research GroupSemmelweis UniversityBudapestHungary
| | - Cherie Blenkiron
- Faculty of Medical and Health SciencesThe University of AucklandAucklandNew Zealand
| | - Benedetta Bussolati
- Department of Molecular Biotechnology and Health SciencesUniversity of TurinTurinItaly
| | | | - Dolores Di Vizio
- Department of Surgery, Division of Cancer Biology and TherapeuticsCedars‐Sinai Medical CenterLos AngelesCaliforniaUSA
| | - Tom A. P. Driedonks
- Department CDL ResearchUniversity Medical Center UtrechtUtrechtThe Netherlands
| | - Uta Erdbrügger
- University of Virginia Health SystemCharlottesvilleVirginiaUSA
| | - Juan M. Falcon‐Perez
- Exosomes Laboratory, Center for Cooperative Research in BiosciencesBasque Research and Technology AllianceDerioSpain
- Metabolomics Platform, Center for Cooperative Research in BiosciencesBasque Research and Technology AllianceDerioSpain
- IKERBASQUE, Basque Foundation for ScienceBilbaoSpain
| | - Qing‐Ling Fu
- Otorhinolaryngology Hospital, The First Affiliated HospitalSun Yat‐sen UniversityGuangzhouChina
- Extracellular Vesicle Research and Clinical Translational CenterThe First Affiliated Hospital, Sun Yat‐sen UniversityGuangzhouChina
| | - Andrew F. Hill
- Institute for Health and SportVictoria UniversityMelbourneAustralia
| | - Metka Lenassi
- Faculty of MedicineUniversity of LjubljanaLjubljanaSlovenia
| | - Sai Kiang Lim
- Institute of Molecular and Cell Biology (IMCB)Agency for Science, Technology and Research (A*STAR)SingaporeSingapore
- Paracrine Therapeutics Pte. Ltd.SingaporeSingapore
- Department of Surgery, YLL School of MedicineNational University SingaporeSingaporeSingapore
| | - Mỹ G. Mahoney
- Thomas Jefferson UniversityPhiladelphiaPennsylvaniaUSA
| | - Sujata Mohanty
- Stem Cell FacilityAll India Institute of Medical SciencesNew DelhiIndia
| | - Andreas Möller
- Chinese University of Hong KongHong KongHong Kong S.A.R.
- QIMR Berghofer Medical Research InstituteBrisbaneAustralia
| | - Rienk Nieuwland
- Laboratory of Experimental Clinical Chemistry, Amsterdam University Medical Centers, Location AMCUniversity of AmsterdamAmsterdamThe Netherlands
- Amsterdam Vesicle Center, Amsterdam University Medical Centers, Location AMCUniversity of AmsterdamAmsterdamThe Netherlands
| | | | - Susmita Sahoo
- Icahn School of Medicine at Mount SinaiNew YorkNew YorkUSA
| | - Ana C. Torrecilhas
- Laboratório de Imunologia Celular e Bioquímica de Fungos e Protozoários, Departamento de Ciências Farmacêuticas, Instituto de Ciências Ambientais, Químicas e FarmacêuticasUniversidade Federal de São Paulo (UNIFESP) Campus DiademaDiademaBrazil
| | - Lei Zheng
- Department of Laboratory Medicine, Nanfang HospitalSouthern Medical UniversityGuangzhouChina
| | - Andries Zijlstra
- Department of PathologyVanderbilt University Medical CenterNashvilleTennesseeUSA
- GenentechSouth San FranciscoCaliforniaUSA
| | - Sarah Abuelreich
- Department of Molecular Medicine, Beckman Research InstituteCity of Hope Comprehensive Cancer CenterDuarteCaliforniaUSA
| | - Reem Bagabas
- Department of Molecular Medicine, Beckman Research InstituteCity of Hope Comprehensive Cancer CenterDuarteCaliforniaUSA
| | - Paolo Bergese
- Department of Molecular and Translational MedicineUniversity of BresciaBresciaItaly
- Center for Colloid and Surface Science (CSGI)FlorenceItaly
- National Center for Gene Therapy and Drugs based on RNA TechnologyPaduaItaly
| | - Esther M. Bridges
- Weatherall Institute of Molecular MedicineUniversity of OxfordOxfordUK
| | - Marco Brucale
- Consiglio Nazionale delle Ricerche ‐ Istituto per lo Studio dei Materiali NanostrutturatiBolognaItaly
- Consorzio Interuniversitario per lo Sviluppo dei Sistemi a Grande InterfaseFlorenceItaly
| | - Dylan Burger
- Kidney Research CentreOttawa Hopsital Research InstituteOttawaCanada
- Department of Cellular and Molecular MedicineUniversity of OttawaOttawaCanada
- School of Pharmaceutical SciencesUniversity of OttawaOttawaCanada
| | - Randy P. Carney
- Department of Biomedical EngineeringUniversity of CaliforniaDavisCaliforniaUSA
| | - Emanuele Cocucci
- Division of Pharmaceutics and Pharmacology, College of PharmacyThe Ohio State UniversityColumbusOhioUSA
- Comprehensive Cancer CenterThe Ohio State UniversityColumbusOhioUSA
| | - Federico Colombo
- Division of Pharmaceutics and Pharmacology, College of PharmacyThe Ohio State UniversityColumbusOhioUSA
| | - Rossella Crescitelli
- Sahlgrenska Center for Cancer Research, Department of Surgery, Institute of Clinical SciencesSahlgrenska Academy, University of GothenburgGothenburgSweden
- Wallenberg Centre for Molecular and Translational Medicine, Institute of Clinical SciencesSahlgrenska Academy, University of GothenburgGothenburgSweden
| | - Edveena Hanser
- Department of BiomedicineUniversity Hospital BaselBaselSwitzerland
- Department of BiomedicineUniversity of BaselBaselSwitzerland
| | | | - Norman J. Haughey
- Departments of Neurology and PsychiatryJohns Hopkins University School of MedicineBaltimoreMarylandUSA
| | - An Hendrix
- Laboratory of Experimental Cancer Research, Department of Human Structure and RepairGhent UniversityGhentBelgium
- Cancer Research Institute GhentGhentBelgium
| | - Alexander R. Ivanov
- Barnett Institute of Chemical and Biological Analysis, Department of Chemistry and Chemical BiologyNortheastern UniversityBostonMassachusettsUSA
| | - Tijana Jovanovic‐Talisman
- Department of Cancer Biology and Molecular Medicine, Beckman Research InstituteCity of Hope Comprehensive Cancer CenterDuarteCaliforniaUSA
| | - Nicole A. Kruh‐Garcia
- Bio‐pharmaceutical Manufacturing and Academic Resource Center (BioMARC)Infectious Disease Research Center, Colorado State UniversityFort CollinsColoradoUSA
| | - Vroniqa Ku'ulei‐Lyn Faustino
- Department of Molecular Medicine, Beckman Research InstituteCity of Hope Comprehensive Cancer CenterDuarteCaliforniaUSA
| | - Diego Kyburz
- Department of BiomedicineUniversity of BaselBaselSwitzerland
- Department of RheumatologyUniversity Hospital BaselBaselSwitzerland
| | - Cecilia Lässer
- Krefting Research Centre, Department of Internal Medicine and Clinical NutritionInstitute of Medicine at Sahlgrenska Academy, University of GothenburgGothenburgSweden
| | - Kathleen M. Lennon
- Department of Molecular Medicine, Beckman Research InstituteCity of Hope Comprehensive Cancer CenterDuarteCaliforniaUSA
| | - Jan Lötvall
- Krefting Research Centre, Institute of Medicine at Sahlgrenska AcademyUniversity of GothenburgGothenburgSweden
| | - Adam L. Maddox
- Department of Molecular Medicine, Beckman Research InstituteCity of Hope Comprehensive Cancer CenterDuarteCaliforniaUSA
| | - Elena S. Martens‐Uzunova
- Erasmus MC Cancer InstituteUniversity Medical Center Rotterdam, Department of UrologyRotterdamThe Netherlands
| | - Rachel R. Mizenko
- Department of Biomedical EngineeringUniversity of CaliforniaDavisCaliforniaUSA
| | - Lauren A. Newman
- College of Medicine and Public HealthFlinders UniversityAdelaideAustralia
| | - Andrea Ridolfi
- Department of Physics and Astronomy, and LaserLaB AmsterdamVrije Universiteit AmsterdamAmsterdamThe Netherlands
| | - Eva Rohde
- Department of Transfusion Medicine, University HospitalSalzburger Landeskliniken GmbH of Paracelsus Medical UniversitySalzburgAustria
- GMP Unit, Paracelsus Medical UniversitySalzburgAustria
- Transfer Centre for Extracellular Vesicle Theralytic Technologies, EV‐TTSalzburgAustria
| | - Tatu Rojalin
- Department of Biomedical EngineeringUniversity of CaliforniaDavisCaliforniaUSA
- Expansion Therapeutics, Structural Biology and BiophysicsJupiterFloridaUSA
| | - Andrew Rowland
- College of Medicine and Public HealthFlinders UniversityAdelaideAustralia
| | - Andras Saftics
- Department of Molecular Medicine, Beckman Research InstituteCity of Hope Comprehensive Cancer CenterDuarteCaliforniaUSA
| | - Ursula S. Sandau
- Department of Anesthesiology & Perioperative MedicineOregon Health & Science UniversityPortlandOregonUSA
| | - Julie A. Saugstad
- Department of Anesthesiology & Perioperative MedicineOregon Health & Science UniversityPortlandOregonUSA
| | - Faezeh Shekari
- Department of Stem Cells and Developmental Biology, Cell Science Research CenterRoyan Institute for Stem Cell Biology and Technology, ACECRTehranIran
- Celer DiagnosticsTorontoCanada
| | - Simon Swift
- Waipapa Taumata Rau University of AucklandAucklandNew Zealand
| | - Dmitry Ter‐Ovanesyan
- Wyss Institute for Biologically Inspired EngineeringHarvard UniversityBostonMassachusettsUSA
| | - Juan P. Tosar
- Universidad de la RepúblicaMontevideoUruguay
- Institut Pasteur de MontevideoMontevideoUruguay
| | - Zivile Useckaite
- College of Medicine and Public HealthFlinders UniversityAdelaideAustralia
| | - Francesco Valle
- Consiglio Nazionale delle Ricerche ‐ Istituto per lo Studio dei Materiali NanostrutturatiBolognaItaly
- Consorzio Interuniversitario per lo Sviluppo dei Sistemi a Grande InterfaseFlorenceItaly
| | - Zoltan Varga
- Biological Nanochemistry Research GroupInstitute of Materials and Environmental Chemistry, Research Centre for Natural SciencesBudapestHungary
- Department of Biophysics and Radiation BiologySemmelweis UniversityBudapestHungary
| | - Edwin van der Pol
- Amsterdam Vesicle Center, Amsterdam University Medical Centers, Location AMCUniversity of AmsterdamAmsterdamThe Netherlands
- Biomedical Engineering and Physics, Amsterdam UMC, location AMCUniversity of AmsterdamAmsterdamThe Netherlands
- Laboratory of Experimental Clinical Chemistry, Amsterdam UMC, location AMCUniversity of AmsterdamAmsterdamThe Netherlands
| | - Martijn J. C. van Herwijnen
- Department of Biomolecular Health Sciences, Faculty of Veterinary MedicineUtrecht UniversityUtrechtThe Netherlands
| | - Marca H. M. Wauben
- Department of Biomolecular Health Sciences, Faculty of Veterinary MedicineUtrecht UniversityUtrechtThe Netherlands
| | | | | | - Andrea Zendrini
- Department of Molecular and Translational MedicineUniversity of BresciaBresciaItaly
- Center for Colloid and Surface Science (CSGI)FlorenceItaly
| | - Alan J. Zimmerman
- Barnett Institute of Chemical and Biological Analysis, Department of Chemistry and Chemical BiologyNortheastern UniversityBostonMassachusettsUSA
| | | | - Clotilde Théry
- Institut Curie, INSERM U932PSL UniversityParisFrance
- CurieCoreTech Extracellular Vesicles, Institut CurieParisFrance
| | - Kenneth W. Witwer
- Department of Molecular and Comparative PathobiologyJohns Hopkins University School of MedicineBaltimoreMarylandUSA
- EV Core Facility “EXCEL”, Institute for Basic Biomedical SciencesJohns Hopkins University School of MedicineBaltimoreMarylandUSA
- The Richman Family Precision Medicine Center of Excellence in Alzheimer's DiseaseJohns Hopkins University School of MedicineBaltimoreMarylandUSA
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Mukund K, Alva-Ornelas JA, Maddox AL, Murali D, Veraksa D, Saftics A, Tomsic J, Frankhouser D, Razo M, Jovanovic-Talisman T, Seewaldt VL, Subramaniam S. Molecular Atlas of HER2+ Breast Cancer Cells Treated with Endogenous Ligands: Temporal Insights into Mechanisms of Trastuzumab Resistance. Cancers (Basel) 2024; 16:553. [PMID: 38339304 PMCID: PMC10854992 DOI: 10.3390/cancers16030553] [Citation(s) in RCA: 0] [Impact Index Per Article: 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: 01/04/2024] [Revised: 01/22/2024] [Accepted: 01/25/2024] [Indexed: 02/12/2024] Open
Abstract
Trastuzumab therapy in HER2+ breast cancer patients has mixed success owing to acquired resistance to therapy. A detailed understanding of downstream molecular cascades resulting from trastuzumab resistance is yet to emerge. In this study, we investigate the cellular mechanisms underlying acquired resistance using trastuzumab-sensitive and -resistant cancer cells (BT474 and BT474R) treated with endogenous ligands EGF and HRG across time. We probe early receptor organization through microscopy and signaling events through multiomics measurements and assess the bioenergetic state through mitochondrial measurements. Integrative analyses of our measurements reveal significant alterations in EGF-treated BT474 HER2 membrane dynamics and robust downstream activation of PI3K/AKT/mTORC1 signaling. EGF-treated BT474R shows a sustained interferon-independent activation of the IRF1/STAT1 cascade, potentially contributing to trastuzumab resistance. Both cell lines exhibit temporally divergent metabolic demands and HIF1A-mediated stress responses. BT474R demonstrates inherently increased mitochondrial activity. HRG treatment in BT474R leads to a pronounced reduction in AR expression, affecting downstream lipid metabolism with implications for treatment response. Our results provide novel insights into mechanistic changes underlying ligand treatment in BT474 and BT474R and emphasize the pivotal role of endogenous ligands. These results can serve as a framework for furthering the understanding of trastuzumab resistance, with therapeutic implications for women with acquired resistance.
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Affiliation(s)
- Kavitha Mukund
- Department of Bioengineering, UC San Diego, Gilman Drive, La Jolla, CA 92093, USA; (K.M.); (D.M.); (D.V.)
| | - Jackelyn A. Alva-Ornelas
- City of Hope Comprehensive Cancer Center, 1500 East Duarte Road, Duarte, CA 91010, USA; (J.A.A.-O.); (J.T.); (D.F.); (M.R.)
| | - Adam L. Maddox
- Department of Cancer Biology and Molecular Medicine, Beckman Research Institute, City of Hope, 1500 East Duarte Road, Duarte, CA 91010, USA; (A.L.M.); (A.S.); (T.J.-T.)
| | - Divya Murali
- Department of Bioengineering, UC San Diego, Gilman Drive, La Jolla, CA 92093, USA; (K.M.); (D.M.); (D.V.)
| | - Darya Veraksa
- Department of Bioengineering, UC San Diego, Gilman Drive, La Jolla, CA 92093, USA; (K.M.); (D.M.); (D.V.)
| | - Andras Saftics
- Department of Cancer Biology and Molecular Medicine, Beckman Research Institute, City of Hope, 1500 East Duarte Road, Duarte, CA 91010, USA; (A.L.M.); (A.S.); (T.J.-T.)
| | - Jerneja Tomsic
- City of Hope Comprehensive Cancer Center, 1500 East Duarte Road, Duarte, CA 91010, USA; (J.A.A.-O.); (J.T.); (D.F.); (M.R.)
| | - David Frankhouser
- City of Hope Comprehensive Cancer Center, 1500 East Duarte Road, Duarte, CA 91010, USA; (J.A.A.-O.); (J.T.); (D.F.); (M.R.)
| | - Meagan Razo
- City of Hope Comprehensive Cancer Center, 1500 East Duarte Road, Duarte, CA 91010, USA; (J.A.A.-O.); (J.T.); (D.F.); (M.R.)
| | - Tijana Jovanovic-Talisman
- Department of Cancer Biology and Molecular Medicine, Beckman Research Institute, City of Hope, 1500 East Duarte Road, Duarte, CA 91010, USA; (A.L.M.); (A.S.); (T.J.-T.)
| | - Victoria L. Seewaldt
- City of Hope Comprehensive Cancer Center, 1500 East Duarte Road, Duarte, CA 91010, USA; (J.A.A.-O.); (J.T.); (D.F.); (M.R.)
| | - Shankar Subramaniam
- Department of Bioengineering, UC San Diego, Gilman Drive, La Jolla, CA 92093, USA; (K.M.); (D.M.); (D.V.)
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Saftics A, Abuelreich S, Romano E, Ghaeli I, Jiang N, Spanos M, Lennon KM, Singh G, Das S, Van Keuren‐Jensen K, Jovanovic‐Talisman T. Single Extracellular VEsicle Nanoscopy. J Extracell Vesicles 2023; 12:e12346. [PMID: 37422692 PMCID: PMC10329735 DOI: 10.1002/jev2.12346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 05/26/2023] [Accepted: 06/23/2023] [Indexed: 07/10/2023] Open
Abstract
Extracellular vesicles (EVs) and their cargo constitute novel biomarkers. EV subpopulations have been defined not only by abundant tetraspanins (e.g., CD9, CD63 and CD81) but also by specific markers derived from their source cells. However, it remains a challenge to robustly isolate and characterize EV subpopulations. Here, we combined affinity isolation with super-resolution imaging to comprehensively assess EV subpopulations from human plasma. Our Single Extracellular VEsicle Nanoscopy (SEVEN) assay successfully quantified the number of affinity-isolated EVs, their size, shape, molecular tetraspanin content, and heterogeneity. The number of detected tetraspanin-enriched EVs positively correlated with sample dilution in a 64-fold range (for SEC-enriched plasma) and a 50-fold range (for crude plasma). Importantly, SEVEN robustly detected EVs from as little as ∼0.1 μL of crude plasma. We further characterized the size, shape and molecular tetraspanin content (with corresponding heterogeneities) for CD9-, CD63- and CD81-enriched EV subpopulations. Finally, we assessed EVs from the plasma of four pancreatic ductal adenocarcinoma patients with resectable disease. Compared to healthy plasma, CD9-enriched EVs from patients were smaller while IGF1R-enriched EVs from patients were larger, rounder and contained more tetraspanin molecules, suggestive of a unique pancreatic cancer-enriched EV subpopulation. This study provides the method validation and demonstrates that SEVEN could be advanced into a platform for characterizing both disease-associated and organ-associated EV subpopulations.
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Affiliation(s)
- Andras Saftics
- Department of Cancer Biology and Molecular Medicine, Beckman Research InstituteCity of Hope Comprehensive Cancer CenterDuarteCaliforniaUSA
| | - Sarah Abuelreich
- Department of Cancer Biology and Molecular Medicine, Beckman Research InstituteCity of Hope Comprehensive Cancer CenterDuarteCaliforniaUSA
| | - Eugenia Romano
- Department of Cancer Biology and Molecular Medicine, Beckman Research InstituteCity of Hope Comprehensive Cancer CenterDuarteCaliforniaUSA
| | - Ima Ghaeli
- Department of Cancer Biology and Molecular Medicine, Beckman Research InstituteCity of Hope Comprehensive Cancer CenterDuarteCaliforniaUSA
| | - Nan Jiang
- Department of Cancer Biology and Molecular Medicine, Beckman Research InstituteCity of Hope Comprehensive Cancer CenterDuarteCaliforniaUSA
| | - Michail Spanos
- Cardiology Division and Corrigan Minehan Heart CenterMassachusetts General HospitalHarvard Medical SchoolBostonMassachusettsUSA
| | - Kathleen M. Lennon
- Department of Cancer Biology and Molecular Medicine, Beckman Research InstituteCity of Hope Comprehensive Cancer CenterDuarteCaliforniaUSA
| | - Gagandeep Singh
- Department of SurgeryCity of Hope Comprehensive Cancer CenterDuarteCaliforniaUSA
| | - Saumya Das
- Cardiology Division and Corrigan Minehan Heart CenterMassachusetts General HospitalHarvard Medical SchoolBostonMassachusettsUSA
| | | | - Tijana Jovanovic‐Talisman
- Department of Cancer Biology and Molecular Medicine, Beckman Research InstituteCity of Hope Comprehensive Cancer CenterDuarteCaliforniaUSA
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Fordjour FK, Abuelreich S, Hong X, Chatterjee E, Lallai V, Ng M, Saftics A, Deng F, Carnel-Amar N, Wakimoto H, Shimizu K, Bautista M, Phu TA, Vu NK, Geiger PC, Raffai RL, Fowler CD, Das S, Christenson LK, Jovanovic-Talisman T, Gould SJ. Exomap1 mouse: a transgenic model for in vivo studies of exosome biology. bioRxiv 2023:2023.05.29.542707. [PMID: 37398219 PMCID: PMC10312766 DOI: 10.1101/2023.05.29.542707] [Citation(s) in RCA: 0] [Impact Index Per Article: 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: 07/04/2023]
Abstract
Exosomes are small extracellular vesicles (sEVs) of ~30-150 nm in diameter that have the same topology as the cell, are enriched in selected exosome cargo proteins, and play important roles in health and disease. To address large unanswered questions regarding exosome biology in vivo, we created the exomap1 transgenic mouse model. In response to Cre recombinase, exomap1 mice express HsCD81mNG, a fusion protein between human CD81, the most highly enriched exosome protein yet described, and the bright green fluorescent protein mNeonGreen. As expected, cell type-specific expression of Cre induced the cell type-specific expression of HsCD81mNG in diverse cell types, correctly localized HsCD81mNG to the plasma membrane, and selectively loaded HsCD81mNG into secreted vesicles that have the size (~80 nm), topology (outside out), and content (presence of mouse exosome markers) of exosomes. Furthermore, mouse cells expressing HsCD81mNG released HsCD81mNG-marked exosomes into blood and other biofluids. Using high-resolution, single-exosome analysis by quantitative single molecule localization microscopy, we show here that that hepatocytes contribute ~15% of the blood exosome population whereas neurons contribute <1% of blood exosomes. These estimates of cell type-specific contributions to blood EV population are consistent with the porosity of liver sinusoidal endothelial cells to particles of ~50-300 nm in diameter, as well as with the impermeability of blood-brain and blood-neuron barriers to particles >5 nm in size. Taken together, these results establish the exomap1 mouse as a useful tool for in vivo studies of exosome biology, and for mapping cell type-specific contributions to biofluid exosome populations. In addition, our data confirm that CD81 is a highly-specific marker for exosomes and is not enriched in the larger microvesicle class of EVs.
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Affiliation(s)
- Francis K. Fordjour
- Department of Biological Chemistry, Johns Hopkins University, Baltimore, MD, 21205 USA
| | - Sarah Abuelreich
- Department of Cancer Biology and Molecular Medicine, Beckman Research Institute, City of Hope, Duarte, CA 91010 USA
| | - Xiaoman Hong
- Department of Cell Biology and Physiology, University of Kansas Medical Center, Kansas City, KS 66160 USA
| | - Emeli Chatterjee
- Cardiovascular Research Center, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114 USA
| | - Valeria Lallai
- Department of Neurobiology & Behavior, University of California Irvine, Irvine, CA 92697 USA
| | - Martin Ng
- Northern California Institute for Research and Education, San Francisco, CA 94121, USA
| | - Andras Saftics
- Department of Cancer Biology and Molecular Medicine, Beckman Research Institute, City of Hope, Duarte, CA 91010 USA
| | - Fengyan Deng
- Department of Cell Biology and Physiology, University of Kansas Medical Center, Kansas City, KS 66160 USA
| | - Natacha Carnel-Amar
- Cardiovascular Research Center, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114 USA
| | - Hiroaki Wakimoto
- Department of Neurosurgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
| | - Kazuhide Shimizu
- Department of Neurosurgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
| | - Malia Bautista
- Department of Neurobiology & Behavior, University of California Irvine, Irvine, CA 92697 USA
| | - Tuan Anh Phu
- Northern California Institute for Research and Education, San Francisco, CA 94121, USA
| | - Ngan K. Vu
- Northern California Institute for Research and Education, San Francisco, CA 94121, USA
| | - Paige C. Geiger
- Department of Cancer Biology and Molecular Medicine, Beckman Research Institute, City of Hope, Duarte, CA 91010 USA
| | - Robert L. Raffai
- Northern California Institute for Research and Education, San Francisco, CA 94121, USA
- Department of Veterans Affairs, Surgical Service (112G), San Francisco VA Medical Center, San Francisco, CA 94121, USA
- Department of Surgery, Division of Vascular and Endovascular Surgery, University of California, San Francisco, CA 94143, USA
| | - Christie D. Fowler
- Department of Neurobiology & Behavior, University of California Irvine, Irvine, CA 92697 USA
| | - Saumya Das
- Cardiovascular Research Center, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114 USA
| | - Lane K. Christenson
- Department of Cell Biology and Physiology, University of Kansas Medical Center, Kansas City, KS 66160 USA
| | - Tijana Jovanovic-Talisman
- Department of Cancer Biology and Molecular Medicine, Beckman Research Institute, City of Hope, Duarte, CA 91010 USA
| | - Stephen J. Gould
- Department of Biological Chemistry, Johns Hopkins University, Baltimore, MD, 21205 USA
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Ai Y, Guo C, Garcia-Contreras M, Sánchez B LS, Saftics A, Shodubi O, Raghunandan S, Xu J, Tsai SJ, Dong Y, Li R, Jovanovic-Talisman T, Gould SJ. Syntenin and CD63 Promote Exosome Biogenesis from the Plasma Membrane by Blocking Cargo Endocytosis. bioRxiv 2023:2023.05.26.542409. [PMID: 37292617 PMCID: PMC10245948 DOI: 10.1101/2023.05.26.542409] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Exosomes are small extracellular vesicles important in health and disease. Syntenin is thought to drive the endosomal biogenesis of CD63 exosomes by recruiting Alix and the ESCRT machinery to endosome-localized CD63. We find instead that syntenin blocks CD63 endocytosis, allowing CD63 to accumulate at the plasma membrane, thereby increasing its direct budding from the plasma membrane. Consistent with this model, we show that specific and general inhibitors of endocytosis induce the exosomal secretion of CD63 and that endocytosis signals inhibit the vesicular secretion of exosome cargo proteins. Furthermore, we show that CD63 is itself a competitive inhibitor of AP-2-mediated endocytosis, driving the plasma membrane accumulation and exosomal secretion of itself and other lysosome membrane proteins. Our results support the hypothesis that highly-enriched exosome cargo proteins bud primarily from the plasma membrane, that endocytosis inhibits their loading into exosomes, and that syntenin and CD63 regulate the loading of lysosomal proteins into exosomes by an Alix-independent modulation of endocytosis.
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Lennon KM, Saftics A, Abuelreich S, Sahu P, Lehmann HI, Maddox AL, Bagabas R, Januzzi JL, Van Keuren-Jensen K, Shah R, Das S, Jovanovic-Talisman T. Cardiac troponin T in extracellular vesicles as a novel biomarker in human cardiovascular disease. Clin Transl Med 2022; 12:e979. [PMID: 35988159 PMCID: PMC9393073 DOI: 10.1002/ctm2.979] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2022] [Revised: 06/23/2022] [Accepted: 06/30/2022] [Indexed: 11/08/2022] Open
Affiliation(s)
- Kathleen M Lennon
- Department of Molecular Medicine, Beckman Research Institute of the City of Hope Comprehensive Cancer Center, Duarte, CA, USA
| | - Andras Saftics
- Department of Molecular Medicine, Beckman Research Institute of the City of Hope Comprehensive Cancer Center, Duarte, CA, USA
| | - Sarah Abuelreich
- Department of Molecular Medicine, Beckman Research Institute of the City of Hope Comprehensive Cancer Center, Duarte, CA, USA
| | - Parul Sahu
- Cardiovascular Research Center, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - H Immo Lehmann
- Cardiovascular Research Center, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Adam L Maddox
- Department of Molecular Medicine, Beckman Research Institute of the City of Hope Comprehensive Cancer Center, Duarte, CA, USA
| | - Reem Bagabas
- Department of Molecular Medicine, Beckman Research Institute of the City of Hope Comprehensive Cancer Center, Duarte, CA, USA
| | - James L Januzzi
- Cardiovascular Research Center, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Kendall Van Keuren-Jensen
- Neurogenomics Division, Center for Noninvasive Diagnostics, Translational Genomics Research Institute, Phoenix, AZ, USA.,Department of Molecular and Cellular Biology, Beckman Research Institute of the City of Hope Comprehensive Cancer Center, Duarte, CA, USA
| | - Ravi Shah
- Cardiovascular Research Center, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Saumya Das
- Cardiovascular Research Center, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Tijana Jovanovic-Talisman
- Department of Molecular Medicine, Beckman Research Institute of the City of Hope Comprehensive Cancer Center, Duarte, CA, USA
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7
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Maddox AL, Brehove MS, Eliato KR, Saftics A, Romano E, Press MF, Mortimer J, Jones V, Schmolze D, Seewaldt VL, Jovanovic-Talisman T. Molecular Assessment of HER2 to Identify Signatures Associated with Therapy Response in HER2-Positive Breast Cancer. Cancers (Basel) 2022; 14:cancers14112795. [PMID: 35681773 PMCID: PMC9179327 DOI: 10.3390/cancers14112795] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [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: 04/28/2022] [Revised: 05/29/2022] [Accepted: 06/01/2022] [Indexed: 11/16/2022] Open
Abstract
Simple Summary The HER2 status of breast cancers is accurately determined by measuring HER2 protein overexpression and gene amplification. However, these clinical diagnostic tests cannot predict the response to therapy. Single molecule imaging approaches can quantify molecular features of HER2, such as receptor nano-organization, with exquisite spatial resolution and sensitivity. The aim of our study was to assess how the molecular features of HER2 varied with the therapy response. According to our results in cultured cell lines and six patient specimens, the therapy response was associated with high detected HER2 densities and clustering. This advanced imaging approach can thus provide key data to complement the current diagnostic standards. Abstract Trastuzumab, the prototype HER2-directed therapy, has markedly improved survival for women with HER2-positive breast cancers. However, only 40–60% of women with HER2-positive breast cancers achieve a complete pathological response to chemotherapy combined with HER2-directed therapy. The current diagnostic assays have poor positive-predictive accuracy in identifying therapy-responsive breast cancers. Here, we deployed quantitative single molecule localization microscopy to assess the molecular features of HER2 in a therapy-responsive setting. Using fluorescently labeled trastuzumab as a probe, we first compared the molecular features of HER2 in trastuzumab-sensitive (BT-474 and SK-BR-3) and trastuzumab-resistant (BT-474R and JIMT-1) cultured cell lines. Trastuzumab-sensitive cells had significantly higher detected HER2 densities and clustering. We then evaluated HER2 in pre-treatment core biopsies from women with breast cancer undergoing neoadjuvant therapy. A complete pathological response was associated with a high detected HER2 density and significant HER2 clustering. These results established the nano-organization of HER2 as a potential signature of therapy-responsive disease.
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Affiliation(s)
- Adam L. Maddox
- Department of Molecular Medicine, Beckman Research Institute, City of Hope Comprehensive Cancer Center, Duarte, CA 91010, USA; (A.L.M.); (M.S.B.); (K.R.E.); (A.S.); (E.R.)
| | - Matthew S. Brehove
- Department of Molecular Medicine, Beckman Research Institute, City of Hope Comprehensive Cancer Center, Duarte, CA 91010, USA; (A.L.M.); (M.S.B.); (K.R.E.); (A.S.); (E.R.)
| | - Kiarash R. Eliato
- Department of Molecular Medicine, Beckman Research Institute, City of Hope Comprehensive Cancer Center, Duarte, CA 91010, USA; (A.L.M.); (M.S.B.); (K.R.E.); (A.S.); (E.R.)
| | - Andras Saftics
- Department of Molecular Medicine, Beckman Research Institute, City of Hope Comprehensive Cancer Center, Duarte, CA 91010, USA; (A.L.M.); (M.S.B.); (K.R.E.); (A.S.); (E.R.)
| | - Eugenia Romano
- Department of Molecular Medicine, Beckman Research Institute, City of Hope Comprehensive Cancer Center, Duarte, CA 91010, USA; (A.L.M.); (M.S.B.); (K.R.E.); (A.S.); (E.R.)
| | - Michael F. Press
- Department of Pathology, Keck School of Medicine of the University of Southern California, Los Angeles, CA 90089, USA;
| | - Joanne Mortimer
- Department of Medical Oncology, City of Hope Comprehensive Cancer Center, Duarte, CA 91010, USA;
| | - Veronica Jones
- Department of Surgery, City of Hope Comprehensive Cancer Center, Duarte, CA 91010, USA;
| | - Daniel Schmolze
- Department of Pathology, City of Hope Comprehensive Cancer Center, Duarte, CA 91010, USA;
| | - Victoria L. Seewaldt
- Department of Population Sciences, Beckman Research Institute, City of Hope Comprehensive Cancer Center, Duarte, CA 91010, USA;
| | - Tijana Jovanovic-Talisman
- Department of Molecular Medicine, Beckman Research Institute, City of Hope Comprehensive Cancer Center, Duarte, CA 91010, USA; (A.L.M.); (M.S.B.); (K.R.E.); (A.S.); (E.R.)
- Correspondence:
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8
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Farkas E, Tarr R, Gerecsei T, Saftics A, Kovács KD, Stercz B, Domokos J, Peter B, Kurunczi S, Szekacs I, Bonyár A, Bányai A, Fürjes P, Ruszkai-Szaniszló S, Varga M, Szabó B, Ostorházi E, Szabó D, Horvath R. Development and In-Depth Characterization of Bacteria Repellent and Bacteria Adhesive Antibody-Coated Surfaces Using Optical Waveguide Biosensing. Biosensors (Basel) 2022; 12:bios12020056. [PMID: 35200317 PMCID: PMC8869200 DOI: 10.3390/bios12020056] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2021] [Revised: 01/07/2022] [Accepted: 01/13/2022] [Indexed: 05/10/2023]
Abstract
Bacteria repellent surfaces and antibody-based coatings for bacterial assays have shown a growing demand in the field of biosensors, and have crucial importance in the design of biomedical devices. However, in-depth investigations and comparisons of possible solutions are still missing. The optical waveguide lightmode spectroscopy (OWLS) technique offers label-free, non-invasive, in situ characterization of protein and bacterial adsorption. Moreover, it has excellent flexibility for testing various surface coatings. Here, we describe an OWLS-based method supporting the development of bacteria repellent surfaces and characterize the layer structures and affinities of different antibody-based coatings for bacterial assays. In order to test nonspecific binding blocking agents against bacteria, OWLS chips were coated with bovine serum albumin (BSA), I-block, PAcrAM-g-(PMOXA, NH2, Si), (PAcrAM-P) and PLL-g-PEG (PP) (with different coating temperatures), and subsequent Escherichia coli adhesion was monitored. We found that the best performing blocking agents could inhibit bacterial adhesion from samples with bacteria concentrations of up to 107 cells/mL. Various immobilization methods were applied to graft a wide range of selected antibodies onto the biosensor's surface. Simple physisorption, Mix&Go (AnteoBind) (MG) films, covalently immobilized protein A and avidin-biotin based surface chemistries were all fabricated and tested. The surface adsorbed mass densities of deposited antibodies were determined, and the biosensor;s kinetic data were evaluated to divine the possible orientations of the bacteria-capturing antibodies and determine the rate constants and footprints of the binding events. The development of affinity layers was supported by enzyme-linked immunosorbent assay (ELISA) measurements in order to test the bacteria binding capabilities of the antibodies. The best performance in the biosensor measurements was achieved by employing a polyclonal antibody in combination with protein A-based immobilization and PAcrAM-P blocking of nonspecific binding. Using this setting, a surface sensitivity of 70 cells/mm2 was demonstrated.
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Affiliation(s)
- Eniko Farkas
- Centre for Energy Research, Nanobiosensorics Laboratory, Institute of Technical Physics and Materials Science, 1121 Budapest, Hungary; (E.F.); (R.T.); (T.G.); (A.S.); (K.D.K.); (B.P.); (S.K.); (I.S.)
| | - Robert Tarr
- Centre for Energy Research, Nanobiosensorics Laboratory, Institute of Technical Physics and Materials Science, 1121 Budapest, Hungary; (E.F.); (R.T.); (T.G.); (A.S.); (K.D.K.); (B.P.); (S.K.); (I.S.)
- Department of Electronics Technology, Faculty of Electrical Engineering and Informatics, Budapest University of Technology and Economics, 1111 Budapest, Hungary;
| | - Tamás Gerecsei
- Centre for Energy Research, Nanobiosensorics Laboratory, Institute of Technical Physics and Materials Science, 1121 Budapest, Hungary; (E.F.); (R.T.); (T.G.); (A.S.); (K.D.K.); (B.P.); (S.K.); (I.S.)
- Department of Biological Physics, Eötvös Loránd University, 1117 Budapest, Hungary
| | - Andras Saftics
- Centre for Energy Research, Nanobiosensorics Laboratory, Institute of Technical Physics and Materials Science, 1121 Budapest, Hungary; (E.F.); (R.T.); (T.G.); (A.S.); (K.D.K.); (B.P.); (S.K.); (I.S.)
| | - Kinga Dóra Kovács
- Centre for Energy Research, Nanobiosensorics Laboratory, Institute of Technical Physics and Materials Science, 1121 Budapest, Hungary; (E.F.); (R.T.); (T.G.); (A.S.); (K.D.K.); (B.P.); (S.K.); (I.S.)
- Department of Biological Physics, Eötvös Loránd University, 1117 Budapest, Hungary
| | - Balazs Stercz
- Institute of Medical Microbiology, Semmelweis University, 1089 Budapest, Hungary; (B.S.); (J.D.); (E.O.); (D.S.)
| | - Judit Domokos
- Institute of Medical Microbiology, Semmelweis University, 1089 Budapest, Hungary; (B.S.); (J.D.); (E.O.); (D.S.)
| | - Beatrix Peter
- Centre for Energy Research, Nanobiosensorics Laboratory, Institute of Technical Physics and Materials Science, 1121 Budapest, Hungary; (E.F.); (R.T.); (T.G.); (A.S.); (K.D.K.); (B.P.); (S.K.); (I.S.)
| | - Sandor Kurunczi
- Centre for Energy Research, Nanobiosensorics Laboratory, Institute of Technical Physics and Materials Science, 1121 Budapest, Hungary; (E.F.); (R.T.); (T.G.); (A.S.); (K.D.K.); (B.P.); (S.K.); (I.S.)
| | - Inna Szekacs
- Centre for Energy Research, Nanobiosensorics Laboratory, Institute of Technical Physics and Materials Science, 1121 Budapest, Hungary; (E.F.); (R.T.); (T.G.); (A.S.); (K.D.K.); (B.P.); (S.K.); (I.S.)
| | - Attila Bonyár
- Department of Electronics Technology, Faculty of Electrical Engineering and Informatics, Budapest University of Technology and Economics, 1111 Budapest, Hungary;
| | - Anita Bányai
- Centre for Energy Research, Microsystems Lab, Institute of Technical Physics and Materials Science, 1121 Budapest, Hungary; (A.B.); (P.F.)
| | - Péter Fürjes
- Centre for Energy Research, Microsystems Lab, Institute of Technical Physics and Materials Science, 1121 Budapest, Hungary; (A.B.); (P.F.)
| | | | - Máté Varga
- 77 Elektronika Ltd., 1116 Budapest, Hungary; (S.R.-S.); (M.V.); (B.S.)
| | - Barnabás Szabó
- 77 Elektronika Ltd., 1116 Budapest, Hungary; (S.R.-S.); (M.V.); (B.S.)
| | - Eszter Ostorházi
- Institute of Medical Microbiology, Semmelweis University, 1089 Budapest, Hungary; (B.S.); (J.D.); (E.O.); (D.S.)
| | - Dóra Szabó
- Institute of Medical Microbiology, Semmelweis University, 1089 Budapest, Hungary; (B.S.); (J.D.); (E.O.); (D.S.)
| | - Robert Horvath
- Centre for Energy Research, Nanobiosensorics Laboratory, Institute of Technical Physics and Materials Science, 1121 Budapest, Hungary; (E.F.); (R.T.); (T.G.); (A.S.); (K.D.K.); (B.P.); (S.K.); (I.S.)
- Correspondence:
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9
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Saftics A, Kurunczi S, Peter B, Szekacs I, Ramsden JJ, Horvath R. Data evaluation for surface-sensitive label-free methods to obtain real-time kinetic and structural information of thin films: A practical review with related software packages. Adv Colloid Interface Sci 2021; 294:102431. [PMID: 34330074 DOI: 10.1016/j.cis.2021.102431] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2020] [Revised: 04/16/2021] [Accepted: 04/18/2021] [Indexed: 02/07/2023]
Abstract
Interfacial layers are important in a wide range of applications in biomedicine, biosensing, analytical chemistry and the maritime industries. Given the growing number of applications, analysis of such layers and understanding their behavior is becoming crucial. Label-free surface sensitive methods are excellent for monitoring the formation kinetics, structure and its evolution of thin layers, even at the nanoscale. In this paper, we review existing and commercially available label-free techniques and demonstrate how the experimentally obtained data can be utilized to extract kinetic and structural information during and after formation, and any subsequent adsorption/desorption processes. We outline techniques, some traditional and some novel, based on the principles of optical and mechanical transduction. Our special focus is the current possibilities of combining label-free methods, which is a powerful approach to extend the range of detected and deduced parameters. We summarize the most important theoretical considerations for obtaining reliable information from measurements taking place in liquid environments and, hence, with layers in a hydrated state. A thorough treamtmaent of the various kinetic and structural quantities obtained from evaluation of the raw label-free data are provided. Such quantities include layer thickness, refractive index, optical anisotropy (and molecular orientation derived therefrom), degree of hydration, viscoelasticity, as well as association and dissociation rate constants and occupied area of subsequently adsorbed species. To demonstrate the effect of variations in model conditions on the observed data, simulations of kinetic curves at various model settings are also included. Based on our own extensive experience with optical waveguide lightmode spectroscopy (OWLS) and the quartz crystal microbalance (QCM), we have developed dedicated software packages for data analysis, which are made available to the scientific community alongside this paper.
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10
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Kanyo N, Kovacs KD, Saftics A, Szekacs I, Peter B, Santa-Maria AR, Walter FR, Dér A, Deli MA, Horvath R. Glycocalyx regulates the strength and kinetics of cancer cell adhesion revealed by biophysical models based on high resolution label-free optical data. Sci Rep 2020; 10:22422. [PMID: 33380731 PMCID: PMC7773743 DOI: 10.1038/s41598-020-80033-6] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Accepted: 12/16/2020] [Indexed: 02/06/2023] Open
Abstract
The glycocalyx is thought to perform a potent, but not yet defined function in cellular adhesion and signaling. Since 95% of cancer cells have altered glycocalyx structure, this role can be especially important in cancer development and metastasis. The glycocalyx layer of cancer cells directly influences cancer progression, involving the complicated kinetic process of cellular adhesion at various levels. In the present work, we investigated the effect of enzymatic digestion of specific glycocalyx components on cancer cell adhesion to RGD (arginine-glycine-aspartic acid) peptide motif displaying surfaces. High resolution kinetic data of cell adhesion was recorded by the surface sensitive label-free resonant waveguide grating (RWG) biosensor, supported by fluorescent staining of the cells and cell surface charge measurements. We found that intense removal of chondroitin sulfate (CS) and dermatan sulfate chains by chondroitinase ABC reduced the speed and decreased the strength of adhesion of HeLa cells. In contrast, mild digestion of glycocalyx resulted in faster and stronger adhesion. Control experiments on a healthy and another cancer cell line were also conducted, and the discrepancies were analysed. We developed a biophysical model which was fitted to the kinetic data of HeLa cells. Our analysis suggests that the rate of integrin receptor transport to the adhesion zone and integrin-RGD binding is strongly influenced by the presence of glycocalyx components, but the integrin-RGD dissociation is not. Moreover, based on the kinetic data we calculated the dependence of the dissociation constant of integrin-RGD binding on the enzyme concentration. We also determined the dissociation constant using a 2D receptor binding model based on saturation level static data recorded at surfaces with tuned RGD densities. We analyzed the discrepancies of the kinetic and static dissociation constants, further illuminating the role of cancer cell glycocalyx during the adhesion process. Altogether, our experimental results and modelling demonstrated that the chondroitin sulfate and dermatan sulfate chains of glycocalyx have an important regulatory function during the cellular adhesion process, mainly controlling the kinetics of integrin transport and integrin assembly into mature adhesion sites. Our results potentially open the way for novel type of cancer treatments affecting these regulatory mechanisms of cellular glycocalyx.
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Affiliation(s)
- Nicolett Kanyo
- Nanobiosensorics Laboratory, Institute of Technical Physics and Materials Science, Centre for Energy Research, Konkoly-Thege M. út 29-33, 1120, Budapest, Hungary
| | - Kinga Dora Kovacs
- Nanobiosensorics Laboratory, Institute of Technical Physics and Materials Science, Centre for Energy Research, Konkoly-Thege M. út 29-33, 1120, Budapest, Hungary
| | - Andras Saftics
- Nanobiosensorics Laboratory, Institute of Technical Physics and Materials Science, Centre for Energy Research, Konkoly-Thege M. út 29-33, 1120, Budapest, Hungary
| | - Inna Szekacs
- Nanobiosensorics Laboratory, Institute of Technical Physics and Materials Science, Centre for Energy Research, Konkoly-Thege M. út 29-33, 1120, Budapest, Hungary
| | - Beatrix Peter
- Nanobiosensorics Laboratory, Institute of Technical Physics and Materials Science, Centre for Energy Research, Konkoly-Thege M. út 29-33, 1120, Budapest, Hungary
| | - Ana R Santa-Maria
- Institute of Biophysics, Biological Research Centre, Temesvári krt. 62., 6726, Szeged, Hungary.,Doctoral School of Biology, University of Szeged, Közép fasor 52., 6726, Szeged, Hungary.,Department of Biotechnology, University of Szeged, Közép fasor 52., 6726, Szeged, Hungary
| | - Fruzsina R Walter
- Institute of Biophysics, Biological Research Centre, Temesvári krt. 62., 6726, Szeged, Hungary.,Department of Biotechnology, University of Szeged, Közép fasor 52., 6726, Szeged, Hungary
| | - András Dér
- Institute of Biophysics, Biological Research Centre, Temesvári krt. 62., 6726, Szeged, Hungary
| | - Mária A Deli
- Institute of Biophysics, Biological Research Centre, Temesvári krt. 62., 6726, Szeged, Hungary
| | - Robert Horvath
- Nanobiosensorics Laboratory, Institute of Technical Physics and Materials Science, Centre for Energy Research, Konkoly-Thege M. út 29-33, 1120, Budapest, Hungary.
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11
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Jankovics H, Kovacs B, Saftics A, Gerecsei T, Tóth É, Szekacs I, Vonderviszt F, Horvath R. Grating-coupled interferometry reveals binding kinetics and affinities of Ni ions to genetically engineered protein layers. Sci Rep 2020; 10:22253. [PMID: 33335217 PMCID: PMC7746762 DOI: 10.1038/s41598-020-79226-w] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Accepted: 12/03/2020] [Indexed: 12/18/2022] Open
Abstract
Reliable measurement of the binding kinetics of low molecular weight analytes to their targets is still a challenging task. Often, the introduction of labels is simply impossible in such measurements, and the application of label-free methods is the only reliable choice. By measuring the binding kinetics of Ni(II) ions to genetically modified flagellin layers, we demonstrate that: (1) Grating-Coupled Interferometry (GCI) is well suited to resolve the binding of ions, even at very low protein immobilization levels; (2) it supplies high quality kinetic data from which the number and strength of available binding sites can be determined, and (3) the rate constants of the binding events can also be obtained with high accuracy. Experiments were performed using a flagellin variant incorporating the C-terminal domain of the nickel-responsive transcription factor NikR. GCI results were compared to affinity data from titration calorimetry. We found that besides the low-affinity binding sites characterized by a micromolar dissociation constant (Kd), tetrameric FliC-NikRC molecules possess high-affinity binding sites with Kd values in the nanomolar range. GCI enabled us to obtain real-time kinetic data for the specific binding of an analyte with molar mass as low as 59 Da, even at signals lower than 1 pg/mm2.
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Affiliation(s)
- Hajnalka Jankovics
- Bio-Nanosystems Laboratory, Research Institute of Biomolecular and Chemical Engineering, University of Pannonia, Egyetem u. 10, Veszprém, Hungary
| | - Boglarka Kovacs
- Nanobiosensorics Laboratory, Institute of Technical Physics and Materials Science, Centre for Energy Research, Konkoly-Thege Miklós út 29-33, Budapest, Hungary
| | - Andras Saftics
- Nanobiosensorics Laboratory, Institute of Technical Physics and Materials Science, Centre for Energy Research, Konkoly-Thege Miklós út 29-33, Budapest, Hungary
| | - Tamas Gerecsei
- Nanobiosensorics Laboratory, Institute of Technical Physics and Materials Science, Centre for Energy Research, Konkoly-Thege Miklós út 29-33, Budapest, Hungary
| | - Éva Tóth
- Bio-Nanosystems Laboratory, Research Institute of Biomolecular and Chemical Engineering, University of Pannonia, Egyetem u. 10, Veszprém, Hungary
| | - Inna Szekacs
- Nanobiosensorics Laboratory, Institute of Technical Physics and Materials Science, Centre for Energy Research, Konkoly-Thege Miklós út 29-33, Budapest, Hungary
| | - Ferenc Vonderviszt
- Bio-Nanosystems Laboratory, Research Institute of Biomolecular and Chemical Engineering, University of Pannonia, Egyetem u. 10, Veszprém, Hungary
- Nanobiosensorics Laboratory, Institute of Technical Physics and Materials Science, Centre for Energy Research, Konkoly-Thege Miklós út 29-33, Budapest, Hungary
| | - Robert Horvath
- Nanobiosensorics Laboratory, Institute of Technical Physics and Materials Science, Centre for Energy Research, Konkoly-Thege Miklós út 29-33, Budapest, Hungary.
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12
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Labadi Z, Kalas B, Saftics A, Illes L, Jankovics H, Bereczk-Tompa É, Sebestyén A, Tóth É, Kakasi B, Moldovan C, Firtat B, Gartner M, Gheorghe M, Vonderviszt F, Fried M, Petrik P. Sensing Layer for Ni Detection in Water Created by Immobilization of Bioengineered Flagellar Nanotubes on Gold Surfaces. ACS Biomater Sci Eng 2020; 6:3811-3820. [PMID: 33463317 DOI: 10.1021/acsbiomaterials.0c00280] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
The environmental monitoring of Ni is targeted at a threshold limit value of 0.34 μM, as set by the World Health Organization. This sensitivity target can usually only be met by time-consuming and expensive laboratory measurements. There is a need for inexpensive, field-applicable methods, even if they are only used for signaling the necessity of a more accurate laboratory investigation. In this work, bioengineered, protein-based sensing layers were developed for Ni detection in water. Two bacterial Ni-binding flagellin variants were fabricated using genetic engineering, and their applicability as Ni-sensitive biochip coatings was tested. Nanotubes of mutant flagellins were built by in vitro polymerization. A large surface density of the nanotubes on the sensor surface was achieved by covalent immobilization chemistry based on a dithiobis(succimidyl propionate) cross-linking method. The formation and density of the sensing layer was monitored and verified by spectroscopic ellipsometry and atomic force microscopy. Cyclic voltammetry (CV) measurements revealed a Ni sensitivity below 1 μM. It was also shown that, even after two months of storage, the used sensors can be regenerated and reused by rinsing in a 10 mM solution of ethylenediaminetetraacetic acid at room temperature.
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Affiliation(s)
- Zoltan Labadi
- Institute of Technical Physics and Materials Science, Centre for Energy Research, Budapest 1121, Hungary
| | - Benjamin Kalas
- Institute of Technical Physics and Materials Science, Centre for Energy Research, Budapest 1121, Hungary
| | - Andras Saftics
- Institute of Technical Physics and Materials Science, Centre for Energy Research, Budapest 1121, Hungary
| | - Levente Illes
- Institute of Technical Physics and Materials Science, Centre for Energy Research, Budapest 1121, Hungary
| | - Hajnalka Jankovics
- Research Institute of Biomolecular and Chemical Engineering, University of Pannonia, Veszprém 8200, Hungary
| | - Éva Bereczk-Tompa
- Research Institute of Biomolecular and Chemical Engineering, University of Pannonia, Veszprém 8200, Hungary
| | - Anett Sebestyén
- Research Institute of Biomolecular and Chemical Engineering, University of Pannonia, Veszprém 8200, Hungary
| | - Éva Tóth
- Research Institute of Biomolecular and Chemical Engineering, University of Pannonia, Veszprém 8200, Hungary
| | - Balázs Kakasi
- Research Institute of Biomolecular and Chemical Engineering, University of Pannonia, Veszprém 8200, Hungary
| | - Carmen Moldovan
- National Institute for Research & Development in Microtechnologies, Bucharest 077190, Romania
| | - Bogdan Firtat
- National Institute for Research & Development in Microtechnologies, Bucharest 077190, Romania
| | - Mariuca Gartner
- "Ilie Murgulescu" Institute of Physical Chemistry of the Romanian Academy, Bucharest 060021, Romania
| | | | - Ferenc Vonderviszt
- Institute of Technical Physics and Materials Science, Centre for Energy Research, Budapest 1121, Hungary.,Research Institute of Biomolecular and Chemical Engineering, University of Pannonia, Veszprém 8200, Hungary
| | - Miklos Fried
- Institute of Technical Physics and Materials Science, Centre for Energy Research, Budapest 1121, Hungary.,Institute of Microelectronics and Technology, Óbuda University, Budapest 1034, Hungary
| | - Peter Petrik
- Institute of Technical Physics and Materials Science, Centre for Energy Research, Budapest 1121, Hungary
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13
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Debreczeni ML, Szekacs I, Kovacs B, Saftics A, Kurunczi S, Gál P, Dobó J, Cervenak L, Horvath R. Human primary endothelial label-free biochip assay reveals unpredicted functions of plasma serine proteases. Sci Rep 2020; 10:3303. [PMID: 32094469 PMCID: PMC7039951 DOI: 10.1038/s41598-020-60158-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [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: 10/10/2019] [Accepted: 02/07/2020] [Indexed: 11/09/2022] Open
Abstract
Tissue-on-a-chip technologies are more and more important in the investigation of cellular function and in the development of novel drugs by allowing the direct screening of substances on human cells. Constituting the inner lining of vessel walls, endothelial cells are the key players in various physiological processes, moreover, they are the first to be exposed to most drugs currently used. However, to date, there is still no appropriate technology for the label-free, real-time and high-throughput monitoring of endothelial function. To this end, we developed an optical biosensor-based endothelial label-free biochip (EnLaB) assay that meets all the above requirements. Using our EnLaB platform, we screened a set of plasma serine proteases as possible endothelial cell activators, and first identified the endothelial cell activating function of three important serine proteases - namely kallikrein, C1r and mannan-binding lectin-associated serine-protease 2 (MASP-2) - and verified these results in well-established functional assays. EnLaB proved to be an effective tool for revealing novel cellular mechanisms as well as for the high-throughput screening of various compounds on endothelial cells.
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Affiliation(s)
| | - Inna Szekacs
- Nanobiosensorics Momentum Group, Institute of Technical Physics and Materials Science, Centre for Energy Research, Konkoly-Thege M. út 29-33, H-1120, Budapest, Hungary
| | - Boglarka Kovacs
- Nanobiosensorics Momentum Group, Institute of Technical Physics and Materials Science, Centre for Energy Research, Konkoly-Thege M. út 29-33, H-1120, Budapest, Hungary
| | - Andras Saftics
- Nanobiosensorics Momentum Group, Institute of Technical Physics and Materials Science, Centre for Energy Research, Konkoly-Thege M. út 29-33, H-1120, Budapest, Hungary
| | - Sándor Kurunczi
- Nanobiosensorics Momentum Group, Institute of Technical Physics and Materials Science, Centre for Energy Research, Konkoly-Thege M. út 29-33, H-1120, Budapest, Hungary
| | - Péter Gál
- Institute of Enzymology, Research Centre for Natural Sciences, H-1113, Budapest, Hungary
| | - József Dobó
- Institute of Enzymology, Research Centre for Natural Sciences, H-1113, Budapest, Hungary
| | - László Cervenak
- 3rd Department of Internal Medicine, Semmelweis University, Budapest, Hungary.
| | - Robert Horvath
- 3rd Department of Internal Medicine, Semmelweis University, Budapest, Hungary.
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14
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Sztilkovics M, Gerecsei T, Peter B, Saftics A, Kurunczi S, Szekacs I, Szabo B, Horvath R. Single-cell adhesion force kinetics of cell populations from combined label-free optical biosensor and robotic fluidic force microscopy. Sci Rep 2020; 10:61. [PMID: 31919421 PMCID: PMC6952389 DOI: 10.1038/s41598-019-56898-7] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [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: 08/27/2019] [Accepted: 12/18/2019] [Indexed: 01/03/2023] Open
Abstract
Single-cell adhesion force plays a crucial role in biological sciences, however its in-depth investigation is hindered by the extremely low throughput and the lack of temporal resolution of present techniques. While atomic force microcopy (AFM) based methods are capable of directly measuring the detachment force values between individual cells and a substrate, their throughput is limited to few cells per day, and cannot provide the kinetic evaluation of the adhesion force over the timescale of several hours. In this study a high spatial and temporal resolution resonant waveguide grating based label-free optical biosensor was combined with robotic fluidic force microscopy to monitor the adhesion of living cancer cells. In contrast to traditional fluidic force microscopy methods with a manipulation range in the order of 300–400 micrometers, the robotic device employed here can address single cells over mm-cm scale areas. This feature significantly increased measurement throughput, and opened the way to combine the technology with the employed microplate-based, large area biosensor. After calibrating the biosensor signals with the direct force measuring technology on 30 individual cells, the kinetic evaluation of the adhesion force and energy of large cell populations was performed for the first time. We concluded that the distribution of the single-cell adhesion force and energy can be fitted by log-normal functions as cells are spreading on the surface and revealed the dynamic changes in these distributions. The present methodology opens the way for the quantitative assessment of the kinetics of single-cell adhesion force and energy with an unprecedented throughput and time resolution, in a completely non-invasive manner.
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Affiliation(s)
- Milan Sztilkovics
- Nanobiosensorics Group, Institute of Technical Physics and Materials Science, Centre for Energy Research, Budapest, Hungary
| | - Tamas Gerecsei
- Nanobiosensorics Group, Institute of Technical Physics and Materials Science, Centre for Energy Research, Budapest, Hungary.,Department of Biological Physics, Eötvös University, Budapest, Hungary
| | - Beatrix Peter
- Nanobiosensorics Group, Institute of Technical Physics and Materials Science, Centre for Energy Research, Budapest, Hungary
| | - Andras Saftics
- Nanobiosensorics Group, Institute of Technical Physics and Materials Science, Centre for Energy Research, Budapest, Hungary
| | - Sandor Kurunczi
- Nanobiosensorics Group, Institute of Technical Physics and Materials Science, Centre for Energy Research, Budapest, Hungary
| | - Inna Szekacs
- Nanobiosensorics Group, Institute of Technical Physics and Materials Science, Centre for Energy Research, Budapest, Hungary
| | - Balint Szabo
- Department of Biological Physics, Eötvös University, Budapest, Hungary
| | - Robert Horvath
- Nanobiosensorics Group, Institute of Technical Physics and Materials Science, Centre for Energy Research, Budapest, Hungary.
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15
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Peter B, Saftics A, Kovacs B, Kurunczi S, Horvath R. Oxidization increases the binding of EGCG to serum albumin revealed by kinetic data from label-free optical biosensor with reference channel. Analyst 2020; 145:588-595. [DOI: 10.1039/c9an01779h] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Schematic illustration of the biosensor to measure the EGCG–BSA interaction and the concentration dependent bound amount of EGCG and oxidized EGCG.
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Affiliation(s)
- Beatrix Peter
- Nanobiosensorics Group
- Centre for Energy Research
- Institute of Technical Physics and Materials Science
- H-1121 Budapest
- Hungary
| | - Andras Saftics
- Nanobiosensorics Group
- Centre for Energy Research
- Institute of Technical Physics and Materials Science
- H-1121 Budapest
- Hungary
| | - Boglarka Kovacs
- Nanobiosensorics Group
- Centre for Energy Research
- Institute of Technical Physics and Materials Science
- H-1121 Budapest
- Hungary
| | - Sandor Kurunczi
- Nanobiosensorics Group
- Centre for Energy Research
- Institute of Technical Physics and Materials Science
- H-1121 Budapest
- Hungary
| | - Robert Horvath
- Nanobiosensorics Group
- Centre for Energy Research
- Institute of Technical Physics and Materials Science
- H-1121 Budapest
- Hungary
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16
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Saftics A, Türk B, Sulyok A, Nagy N, Gerecsei T, Szekacs I, Kurunczi S, Horvath R. Biomimetic Dextran-Based Hydrogel Layers for Cell Micropatterning over Large Areas Using the FluidFM BOT Technology. Langmuir 2019; 35:2412-2421. [PMID: 30653328 DOI: 10.1021/acs.langmuir.8b03249] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Micropatterning of living single cells and cell clusters over millimeter-centimeter scale areas is of high demand in the development of cell-based biosensors. Micropatterning methodologies require both a suitable biomimetic support and a printing technology. In this work, we present the micropatterning of living mammalian cells on carboxymethyl dextran (CMD) hydrogel layers using the FluidFM BOT technology. In contrast to the ultrathin (few nanometers thick in the dry state) CMD films generally used in label-free biosensor applications, we developed CMD layers with thicknesses of several tens of nanometers in order to provide support for the controlled adhesion of living cells. The fabrication method and detailed characterization of the CMD layers are also described. The antifouling ability of the CMD surfaces is demonstrated by in situ optical waveguide lightmode spectroscopy measurements using serum modeling proteins with different electrostatic properties and molecular weights. Cell micropatterning on the CMD surface was obtained by printing cell adhesion mediating cRGDfK peptide molecules (cyclo(Arg-Gly-Asp-d-Phe-Lys)) directly from aqueous solution using microchanneled cantilevers with subsequent incubation of the printed surfaces in the living cell culture. Uniquely, we present cell patterns with different geometries (spot, line, and grid arrays) covering both micrometer and millimeter-centimeter scale areas. The adhered patterns were analyzed by phase contrast microscopy and the adhesion process on the patterns was real-time monitored by digital holographic microscopy, enabling to quantify the survival and migration of cells on the printed cRGDfK arrays.
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Affiliation(s)
- Andras Saftics
- Faculty of Chemical Technology and Biotechnology , Budapest University of Technology and Economics , Műegyetem rkp. 3 , Budapest 1111 , Hungary
| | - Barbara Türk
- Faculty of Chemical Technology and Biotechnology , Budapest University of Technology and Economics , Műegyetem rkp. 3 , Budapest 1111 , Hungary
| | | | | | - Tamás Gerecsei
- Department of Biological Physics , Eötvös Loránd University , Pázmány Péter stny. 1A , Budapest 1117 , Hungary
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17
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Saftics A, Prósz GA, Türk B, Peter B, Kurunczi S, Horvath R. In situ viscoelastic properties and chain conformations of heavily hydrated carboxymethyl dextran layers: a comparative study using OWLS and QCM-I chips coated with waveguide material. Sci Rep 2018; 8:11840. [PMID: 30087383 PMCID: PMC6081421 DOI: 10.1038/s41598-018-30201-6] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [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: 10/06/2017] [Accepted: 06/05/2018] [Indexed: 01/30/2023] Open
Abstract
Hydration, viscoelastic properties and dominant structure of thin polymer layers on the surface of waveguide material were evaluated using optical waveguide lightmode spectroscopy (OWLS) and quartz crystal microbalance (QCM) methods. The fundamentally different principles of the two applied label-free biosensors enable to examine analyte layers from complementary aspects, e.g. to determine the amount of bound water in hydrated layers. In this study, a new QCM instrument with impedance measurement (QCM-I) is introduced. Its specially designed sensor chips, covered by thin film of waveguide material, supply identical surface as used in OWLS sensors, thus enabling to perform parallel measurements on the same type of surface. Viscoelastic analysis of the measured data was performed by our evaluation code developed in MATLAB environment, using the Voinova's Voigt-based model. In situ deposition experiments on the ultrathin films of poly(L-lysine)-graft-poly(ethylene glycol) (PLL-g-PEG) were conducted for instrumental and code validation. Additionally, a novel OWLS-QCM data evaluation methodology has been developed based on the concept of combining hydration and viscoelastic data with optical anisotropy results from OWLS measurements. This methodology provided insight into the time-dependent chain conformation of heavily hydrated nano-scaled layers, resulting in unprecedented structural, hydration and viscoelastic information on covalently grafted ultrathin carboxymethyl dextran (CMD) films. The measured mass values as well as hydration and viscoelastic properties were compared with the characteristics of PLL-g-PEG layers.
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Affiliation(s)
- Andras Saftics
- Nanobiosensorics Laboratory, Centre for Energy Research, Hungarian Academy of Sciences, Konkoly Thege Miklós út 29-33, Budapest, 1121, Hungary
- Faculty of Chemical Technology and Biotechnology, Budapest University of Technology and Economics, Műegyetem rkp. 3, Budapest, 1111, Hungary
| | - György Aurél Prósz
- Nanobiosensorics Laboratory, Centre for Energy Research, Hungarian Academy of Sciences, Konkoly Thege Miklós út 29-33, Budapest, 1121, Hungary
| | - Barbara Türk
- Nanobiosensorics Laboratory, Centre for Energy Research, Hungarian Academy of Sciences, Konkoly Thege Miklós út 29-33, Budapest, 1121, Hungary
- Faculty of Chemical Technology and Biotechnology, Budapest University of Technology and Economics, Műegyetem rkp. 3, Budapest, 1111, Hungary
| | - Beatrix Peter
- Nanobiosensorics Laboratory, Centre for Energy Research, Hungarian Academy of Sciences, Konkoly Thege Miklós út 29-33, Budapest, 1121, Hungary
| | - Sándor Kurunczi
- Nanobiosensorics Laboratory, Centre for Energy Research, Hungarian Academy of Sciences, Konkoly Thege Miklós út 29-33, Budapest, 1121, Hungary
| | - Robert Horvath
- Nanobiosensorics Laboratory, Centre for Energy Research, Hungarian Academy of Sciences, Konkoly Thege Miklós út 29-33, Budapest, 1121, Hungary.
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18
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Peter B, Farkas E, Forgacs E, Saftics A, Kovacs B, Kurunczi S, Szekacs I, Csampai A, Bosze S, Horvath R. Green tea polyphenol tailors cell adhesivity of RGD displaying surfaces: multicomponent models monitored optically. Sci Rep 2017; 7:42220. [PMID: 28186133 PMCID: PMC5301484 DOI: 10.1038/srep42220] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2016] [Accepted: 01/03/2017] [Indexed: 01/17/2023] Open
Abstract
The interaction of the anti-adhesive coating, poly(L-lysine)-graft-poly(ethylene glycol) (PLL-g-PEG) and its Arg-Gly-Asp (RGD) functionalized form, PLL-g-PEG-RGD, with the green tea polyphenol, epigallocatechin-gallate (EGCg) was in situ monitored. After, the kinetics of cellular adhesion on the EGCg exposed coatings were recorded in real-time. The employed plate-based waveguide biosensor is applicable to monitor small molecule binding and sensitive to sub-nanometer scale changes in cell membrane position and cell mass distribution; while detecting the signals of thousands of adhering cells. The combination of this remarkable sensitivity and throughput opens up new avenues in testing complicated models of cell-surface interactions. The systematic studies revealed that, despite the reported excellent antifouling properties of the coatings, EGCg strongly interacted with them, and affected their cell adhesivity in a concentration dependent manner. Moreover, the differences between the effects of the fresh and oxidized EGCg solutions were first demonstrated. Using a semiempirical quantumchemical method we showed that EGCg binds to the PEG chains of PLL-g-PEG-RGD and effectively blocks the RGD sites by hydrogen bonds. The calculations supported the experimental finding that the binding is stronger for the oxidative products. Our work lead to a new model of polyphenol action on cell adhesion ligand accessibility and matrix rigidity.
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Affiliation(s)
- Beatrix Peter
- Doctoral School of Molecular and Nanotechnologies, Faculty of Information Technology, University of Pannonia, H-8200 Egyetem u. 10, Veszprém, Hungary.,Nanobiosensorics Group, Hungarian Academy of Sciences, Research Centre for Natural Sciences, Institute for Technical Physics and Materials Science, Konkoly-Thege u, 29-33, H-1120 Budapest, Hungary
| | - Eniko Farkas
- Nanobiosensorics Group, Hungarian Academy of Sciences, Research Centre for Natural Sciences, Institute for Technical Physics and Materials Science, Konkoly-Thege u, 29-33, H-1120 Budapest, Hungary.,Chemical Engineering and Material Science Doctoral School, University of Pannonia, H-8200 Egyetem u, 10, Veszprém, Hungary
| | - Eniko Forgacs
- Nanobiosensorics Group, Hungarian Academy of Sciences, Research Centre for Natural Sciences, Institute for Technical Physics and Materials Science, Konkoly-Thege u, 29-33, H-1120 Budapest, Hungary
| | - Andras Saftics
- Nanobiosensorics Group, Hungarian Academy of Sciences, Research Centre for Natural Sciences, Institute for Technical Physics and Materials Science, Konkoly-Thege u, 29-33, H-1120 Budapest, Hungary.,George Olah Doctoral School, Faculty of Chemical Technology and Biotechnology, Budapest University of Technology and Economics, Műegyetem rkp. 3, Budapest 1111, Hungary
| | - Boglarka Kovacs
- Nanobiosensorics Group, Hungarian Academy of Sciences, Research Centre for Natural Sciences, Institute for Technical Physics and Materials Science, Konkoly-Thege u, 29-33, H-1120 Budapest, Hungary.,Chemical Engineering and Material Science Doctoral School, University of Pannonia, H-8200 Egyetem u, 10, Veszprém, Hungary
| | - Sandor Kurunczi
- Nanobiosensorics Group, Hungarian Academy of Sciences, Research Centre for Natural Sciences, Institute for Technical Physics and Materials Science, Konkoly-Thege u, 29-33, H-1120 Budapest, Hungary
| | - Inna Szekacs
- Nanobiosensorics Group, Hungarian Academy of Sciences, Research Centre for Natural Sciences, Institute for Technical Physics and Materials Science, Konkoly-Thege u, 29-33, H-1120 Budapest, Hungary
| | - Antal Csampai
- Institute of Chemistry, Eötvös Loránd University, Budapest 112, POB 32, H-1518, Hungary
| | - Szilvia Bosze
- MTA-ELTE Research Group of Peptide Chemistry, Hungarian Academy of Sciences, Eötvös Loránd University, Budapest 112, POB 32, H-1518, Hungary
| | - Robert Horvath
- Nanobiosensorics Group, Hungarian Academy of Sciences, Research Centre for Natural Sciences, Institute for Technical Physics and Materials Science, Konkoly-Thege u, 29-33, H-1120 Budapest, Hungary
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19
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Saftics A, Kurunczi S, Szekrényes Z, Kamarás K, Khánh NQ, Sulyok A, Bſsze S, Horvath R. Fabrication and characterization of ultrathin dextran layers: Time dependent nanostructure in aqueous environments revealed by OWLS. Colloids Surf B Biointerfaces 2016; 146:861-70. [DOI: 10.1016/j.colsurfb.2016.06.057] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2015] [Revised: 06/24/2016] [Accepted: 06/27/2016] [Indexed: 11/30/2022]
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20
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Nador J, Kalas B, Saftics A, Agocs E, Kozma P, Korosi L, Szekacs I, Fried M, Horvath R, Petrik P. Plasmon-enhanced two-channel in situ Kretschmann ellipsometry of protein adsorption, cellular adhesion and polyelectrolyte deposition on titania nanostructures. Opt Express 2016; 24:4812-4823. [PMID: 29092309 DOI: 10.1364/oe.24.004812] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Plasmon-enhanced in situ spectroscopic ellipsometry was realized using the Kretschmann geometry. A 10-μL flow cell was designed for multi-channel measurements using a semi-cylindrical lens. Dual-channel monitoring of the layer formation of different organic structures has been demonstrated on titania nanoparticle thin films supported by gold. Complex modeling capabilities as well as a sensitivity of ~40 pg/mm2 with a time resolution of 1 s was achieved. The surface adsorption was enhanced by the titania nanoparticles due to the larger specific surface and nanoroughness, which is consistent with our previous results on titanate nanotubes.
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