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Kaur A, Kanwar R, Kaushik D, Sakala IG, Honda-Okubo Y, Petrovsky N, Salunke DB, Mehta SK. Combined delivery of TLR2 and TLR7 agonists by Nanostructured lipid carriers induces potent vaccine adjuvant activity in mice. Int J Pharm 2021; 613:121378. [PMID: 34915144 DOI: 10.1016/j.ijpharm.2021.121378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 11/12/2021] [Accepted: 12/09/2021] [Indexed: 10/19/2022]
Abstract
Toll-like receptor (TLR) agonists are promising adjuvants and the combination of TLR agonists enhance immune responses by providing synergistic immune activity via triggering different signalling pathways. However, systematic cytotoxicity due to the immediate release of such immune potentiators from the site of injection hampers its clinical performance. Nanostructured lipid carriers (NLCs) offer a possibility to incorporate multiple TLR agonists with high encapsulation efficiency and slow drug release. Herein, we synthesized NLCs from didodecyldimethylammonium bromide (D12DAB) and oleic acid and used these to co-encapsulate a Pam2CS derivative (T-2, TLR2 agonist) with an imidazoquinoline derivative (T-7, TLR7 agonist) as a combination vaccine adjuvant. Hydrodynamic diameter and zeta potential of the prepared NLCs were found to be in the range of 200-500 nm and 23-27 mV, respectively. Spherical shape and size of prepared NLCs were also assessed through Field Emission Scanning Electron Microscopy (FE-SEM) and Transmission Electron Microscopy (TEM) analysis. In-vitro release studies of T-7 demonstrated sustained release and the addition of lipopeptide T-2 augmented encapsulation efficiency (from 84 to 92.9%) with a slight trigger in the release percentage. All NLC formulations were screened in TLR2/1, TLR2/6, TLR7 and TLR8 reporter cell lines and loaded NLC formulation showed high TLR2 and TLR7 agonistic activity. Adjuvant potency was evaluated through intramuscular immunization of female C57BL/6 mice with recombinant hepatitis B surface antigen and influenza hemagglutinin protein. T-2 and T-7 loaded NLCs induced good protective efficacy in mice challenged with a lethal dose of influenza virus.
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Affiliation(s)
- Arshpreet Kaur
- Department of Chemistry and Centre for Advanced Studies, Panjab University, Chandigarh, India
| | - Rohini Kanwar
- Department of Chemistry and Centre for Advanced Studies, Panjab University, Chandigarh, India; Mehr Chand Mahajan DAV College for Women, Chandigarh, India
| | - Deepender Kaushik
- Department of Chemistry and Centre for Advanced Studies, Panjab University, Chandigarh, India
| | - Isaac G Sakala
- Vaxine Pty Ltd, Warradale, Australia; College of Medicine and Public Health, Flinders University, Adelaide, Australia
| | - Yoshikazu Honda-Okubo
- Vaxine Pty Ltd, Warradale, Australia; College of Medicine and Public Health, Flinders University, Adelaide, Australia
| | - Nikolai Petrovsky
- Vaxine Pty Ltd, Warradale, Australia; College of Medicine and Public Health, Flinders University, Adelaide, Australia.
| | - Deepak B Salunke
- Department of Chemistry and Centre for Advanced Studies, Panjab University, Chandigarh, India; National Interdisciplinary Centre of Vaccines, Immunotherapeutics and Antimicrobials, Panjab University, Chandigarh, India.
| | - Surinder K Mehta
- Department of Chemistry and Centre for Advanced Studies, Panjab University, Chandigarh, India.
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2
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Liao F, Wang H, Dao Y, Yuan K, Lu J, Shi J, Han Y, Dong S, Lu L. Synthesis and biological evaluation of a lipopeptide-based methamphetamine vaccine. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2020.10.038] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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3
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Cai Y, Ran W, Zhai Y, Wang J, Zheng C, Li Y, Zhang P. Recent progress in supramolecular peptide assemblies as virus mimics for cancer immunotherapy. Biomater Sci 2020; 8:1045-1057. [DOI: 10.1039/c9bm01380f] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Supramolecular peptide assemblies can mimic natural viruses and serve as well-defined, dynamic and multifunctional nanoplatforms for cancer immunotherapy, where the peptide segments act as antigens, adjuvants and carriers.
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Affiliation(s)
- Ying Cai
- State Key Laboratory of Drug Research & Center of Pharmaceutics
- Shanghai Institute of Materia Medica
- Chinese Academy of Sciences
- Shanghai 201203
- China
| | - Wei Ran
- State Key Laboratory of Drug Research & Center of Pharmaceutics
- Shanghai Institute of Materia Medica
- Chinese Academy of Sciences
- Shanghai 201203
- China
| | - Yihui Zhai
- State Key Laboratory of Drug Research & Center of Pharmaceutics
- Shanghai Institute of Materia Medica
- Chinese Academy of Sciences
- Shanghai 201203
- China
| | - Junyang Wang
- State Key Laboratory of Drug Research & Center of Pharmaceutics
- Shanghai Institute of Materia Medica
- Chinese Academy of Sciences
- Shanghai 201203
- China
| | - Chao Zheng
- State Key Laboratory of Drug Research & Center of Pharmaceutics
- Shanghai Institute of Materia Medica
- Chinese Academy of Sciences
- Shanghai 201203
- China
| | - Yaping Li
- State Key Laboratory of Drug Research & Center of Pharmaceutics
- Shanghai Institute of Materia Medica
- Chinese Academy of Sciences
- Shanghai 201203
- China
| | - Pengcheng Zhang
- State Key Laboratory of Drug Research & Center of Pharmaceutics
- Shanghai Institute of Materia Medica
- Chinese Academy of Sciences
- Shanghai 201203
- China
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4
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Chen XZ, Zhang RY, Wang XF, Yin XG, Wang J, Wang YC, Liu X, Du JJ, Liu Z, Guo J. Peptide-free Synthetic Nicotine Vaccine Candidates with α-Galactosylceramide as Adjuvant. Mol Pharm 2019; 16:1467-1476. [DOI: 10.1021/acs.molpharmaceut.8b01095] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Xiang-Zhao Chen
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Hubei International Scientific and Technological Cooperation Base of Pesticide and Green Synthesis, International Joint Research Center for Intelligent Biosensing Technology and Health, College of Chemistry, Central China Normal University, Wuhan, Hubei 430079, P. R. China
| | - Ru-Yan Zhang
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Hubei International Scientific and Technological Cooperation Base of Pesticide and Green Synthesis, International Joint Research Center for Intelligent Biosensing Technology and Health, College of Chemistry, Central China Normal University, Wuhan, Hubei 430079, P. R. China
| | - Xi-Feng Wang
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Hubei International Scientific and Technological Cooperation Base of Pesticide and Green Synthesis, International Joint Research Center for Intelligent Biosensing Technology and Health, College of Chemistry, Central China Normal University, Wuhan, Hubei 430079, P. R. China
| | - Xu-Guang Yin
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Hubei International Scientific and Technological Cooperation Base of Pesticide and Green Synthesis, International Joint Research Center for Intelligent Biosensing Technology and Health, College of Chemistry, Central China Normal University, Wuhan, Hubei 430079, P. R. China
| | - Jian Wang
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Hubei International Scientific and Technological Cooperation Base of Pesticide and Green Synthesis, International Joint Research Center for Intelligent Biosensing Technology and Health, College of Chemistry, Central China Normal University, Wuhan, Hubei 430079, P. R. China
| | - Ya-Cong Wang
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Hubei International Scientific and Technological Cooperation Base of Pesticide and Green Synthesis, International Joint Research Center for Intelligent Biosensing Technology and Health, College of Chemistry, Central China Normal University, Wuhan, Hubei 430079, P. R. China
| | - Xiu Liu
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Hubei International Scientific and Technological Cooperation Base of Pesticide and Green Synthesis, International Joint Research Center for Intelligent Biosensing Technology and Health, College of Chemistry, Central China Normal University, Wuhan, Hubei 430079, P. R. China
| | - Jing-Jing Du
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Hubei International Scientific and Technological Cooperation Base of Pesticide and Green Synthesis, International Joint Research Center for Intelligent Biosensing Technology and Health, College of Chemistry, Central China Normal University, Wuhan, Hubei 430079, P. R. China
| | - Zheng Liu
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Hubei International Scientific and Technological Cooperation Base of Pesticide and Green Synthesis, International Joint Research Center for Intelligent Biosensing Technology and Health, College of Chemistry, Central China Normal University, Wuhan, Hubei 430079, P. R. China
| | - Jun Guo
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Hubei International Scientific and Technological Cooperation Base of Pesticide and Green Synthesis, International Joint Research Center for Intelligent Biosensing Technology and Health, College of Chemistry, Central China Normal University, Wuhan, Hubei 430079, P. R. China
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5
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Lin LCW, Chattopadhyay S, Lin JC, Hu CMJ. Advances and Opportunities in Nanoparticle- and Nanomaterial-Based Vaccines against Bacterial Infections. Adv Healthc Mater 2018; 7:e1701395. [PMID: 29508547 DOI: 10.1002/adhm.201701395] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Revised: 01/22/2018] [Indexed: 02/06/2023]
Abstract
As the dawn of the postantibiotic era we approach, antibacterial vaccines are becoming increasingly important for managing bacterial infection and reducing the need for antibiotics. Despite the success of vaccination, vaccines remain unavailable for many pressing microbial diseases, including tuberculosis, chlamydia, and staphylococcus infections. Amid continuing research efforts in antibacterial vaccine development, the advancement of nanomaterial engineering has brought forth new opportunities in vaccine designs. With increasing knowledge in antibacterial immunity and immunologic adjuvants, innovative nanoparticles are designed to elicit the appropriate immune responses for effective antimicrobial defense. Rationally designed nanoparticles are demonstrated to overcome delivery barriers to shape the adaptive immunity. This article reviews the advances in nanoparticle- and nanomaterial-based antibacterial vaccines and summarizes the development of nanoparticulate adjuvants for immune potentiation against microbial pathogens. In addition, challenges and progress in ongoing antibacterial vaccine development are discussed to highlight the opportunities for future vaccine designs.
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Affiliation(s)
- Leon Chien-Wei Lin
- Institute of Biomedical Sciences; Academia Sinica; 128, Sec. 2, Academia Road Nangang District Taipei 11529 Taiwan
| | - Saborni Chattopadhyay
- Institute of Biomedical Sciences; Academia Sinica; 128, Sec. 2, Academia Road Nangang District Taipei 11529 Taiwan
| | - Jung-Chen Lin
- Institute of Biomedical Sciences; Academia Sinica; 128, Sec. 2, Academia Road Nangang District Taipei 11529 Taiwan
| | - Che-Ming Jack Hu
- Institute of Biomedical Sciences; Academia Sinica; 128, Sec. 2, Academia Road Nangang District Taipei 11529 Taiwan
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6
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Arai Y, Inuki S, Fujimoto Y. Site-specific effect of polar functional group-modification in lipids of TLR2 ligands for modulating the ligand immunostimulatory activity. Bioorg Med Chem Lett 2018; 28:1638-1641. [DOI: 10.1016/j.bmcl.2018.03.042] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2018] [Revised: 03/15/2018] [Accepted: 03/16/2018] [Indexed: 02/06/2023]
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7
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Fujita Y, Taguchi H. Nanoparticle-Based Peptide Vaccines. MICRO AND NANOTECHNOLOGY IN VACCINE DEVELOPMENT 2017. [PMCID: PMC7152328 DOI: 10.1016/b978-0-323-39981-4.00008-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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8
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Liu Y, Zhang W, He Q, Yu F, Song T, Liu T, Zhang Z, Zhou J, Wang PG, Zhao W. Fully synthetic self-adjuvanting MUC1-fibroblast stimulating lipopeptide 1 conjugates as potential cancer vaccines. Chem Commun (Camb) 2016; 52:10886-9. [DOI: 10.1039/c6cc04623a] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
We have designed and synthesized MUC1-fibroblast stimulating lipopeptide 1 conjugates as potential self-adjuvanting cancer vaccines using a linear solid phase peptide synthesis strategy.
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Affiliation(s)
- Yonghui Liu
- State Key Laboratory of Medicinal Chemical Biology
- College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research
- Nankai University
- Haihe Education Park
- Tianjin 300353
| | - Wenpeng Zhang
- State Key Laboratory of Toxicology and Medical Countermeasures
- Beijing Institute of Pharmacology and Toxicology
- Beijing 100850
- P. R. China
| | - Qianqian He
- College of Life Sciences
- Nankai University
- Tianjin 300071
- P. R. China
| | - Fan Yu
- College of Life Sciences
- Nankai University
- Tianjin 300071
- P. R. China
| | - Tianbang Song
- State Key Laboratory of Medicinal Chemical Biology
- College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research
- Nankai University
- Haihe Education Park
- Tianjin 300353
| | - Tingting Liu
- State Key Laboratory of Medicinal Chemical Biology
- College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research
- Nankai University
- Haihe Education Park
- Tianjin 300353
| | - Zhenqing Zhang
- State Key Laboratory of Toxicology and Medical Countermeasures
- Beijing Institute of Pharmacology and Toxicology
- Beijing 100850
- P. R. China
| | - Jun Zhou
- College of Life Sciences
- Nankai University
- Tianjin 300071
- P. R. China
| | - Peng George Wang
- State Key Laboratory of Medicinal Chemical Biology
- College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research
- Nankai University
- Haihe Education Park
- Tianjin 300353
| | - Wei Zhao
- State Key Laboratory of Medicinal Chemical Biology
- College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research
- Nankai University
- Haihe Education Park
- Tianjin 300353
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9
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Francis JN, Thaburet JF, Bonnet D, Sizer PJ, Brown CB, Georges B. Increasing cellular immunogenicity to peptide-based vaccine candidates using a fluorocarbon antigen delivery system. Vaccine 2015; 33:1071-6. [PMID: 25573036 DOI: 10.1016/j.vaccine.2014.12.061] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2014] [Revised: 12/11/2014] [Accepted: 12/22/2014] [Indexed: 12/24/2022]
Abstract
Traditionally, synthetic peptide vaccines for infectious diseases and cancer require adjuvants to achieve optimal immunogenicity. Here we describe a novel method of peptide modification using a fluorocarbon chain which can substantially increase peptide-specific cellular immune responses in the absence of adjuvant. We demonstrate that fluorocarbon-modified peptides (fluoropeptides) derived from HIV, influenza and hepatitis C virus can significantly increase interferon gamma ELISpot responses against cytotoxic and T-helper epitopes compared to unmodified peptides or lipopeptides in mice. Increases in both T-helper1 and T-helper2 cytokines are observed. Fluoropeptides show enhanced ability of the antigen to persist at the site of administration and persistence is associated with a prolonged and elevated immune response. Additionally we demonstrate that fluoropeptides have increased proteolytic resistance thereby potentially supporting their increased half-life in vivo. Fluorocarbon-modification of peptides provides a valuable tool for increasing cellular immunogenicity of vaccines for infectious diseases and cancer without requirement for traditional adjuvants.
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Affiliation(s)
- James N Francis
- Immune Targeting Systems, 2 Royal College Street, London, NW1 0NH, UK.
| | | | - Dominique Bonnet
- Laboratoire d'Innovation Thérapeutique, UMR7200 CNRS, Université de Strasbourg, LabexMedalis, Faculté de Pharmacie, 74 route du Rhin, 67412 Illkirch, France
| | - Philip J Sizer
- Immune Targeting Systems, 2 Royal College Street, London, NW1 0NH, UK
| | - Carlton B Brown
- Immune Targeting Systems, 2 Royal College Street, London, NW1 0NH, UK
| | - Bertrand Georges
- Immune Targeting Systems, 2 Royal College Street, London, NW1 0NH, UK
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10
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Barclay TG, Constantopoulos K, Matisons J. Nanotubes Self-Assembled from Amphiphilic Molecules via Helical Intermediates. Chem Rev 2014; 114:10217-91. [DOI: 10.1021/cr400085m] [Citation(s) in RCA: 185] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Thomas G. Barclay
- Flinders Centre for Nanoscale Science & Technology, School of Chemical and Physical Sciences, Flinders University, Adelaide, South Australia 5042, Australia
| | - Kristina Constantopoulos
- Flinders Centre for Nanoscale Science & Technology, School of Chemical and Physical Sciences, Flinders University, Adelaide, South Australia 5042, Australia
| | - Janis Matisons
- Flinders Centre for Nanoscale Science & Technology, School of Chemical and Physical Sciences, Flinders University, Adelaide, South Australia 5042, Australia
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11
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Huang ZH, Sun ZY, Gao Y, Chen PG, Liu YF, Chen YX, Li YM. Strategy for Designing a Synthetic Tumor Vaccine: Multi-Component, Multivalency and Antigen Modification. Vaccines (Basel) 2014; 2:549-62. [PMID: 26344745 PMCID: PMC4494217 DOI: 10.3390/vaccines2030549] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2014] [Revised: 05/30/2014] [Accepted: 06/04/2014] [Indexed: 12/29/2022] Open
Abstract
Synthetic tumor vaccines have been proven to be promising for cancer immunotherapy. However, the limitation of the specificity and efficiency of the synthetic tumor vaccines need further improvements. To overcome these difficulties, additional tumor-associated targets need to be identified, and optimized structural designs of vaccines need to be elaborated. In this review, we summarized the main strategies pursued in the design of synthetic tumor vaccines, such as multi-component, multivalency, antigen modification and other possible ways to improve the efficiency of synthetic tumor vaccines.
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Affiliation(s)
- Zhi-Hua Huang
- Department of Chemistry, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Tsinghua University, Beijing 100084, China.
| | - Zhan-Yi Sun
- Department of Chemistry, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Tsinghua University, Beijing 100084, China.
| | - Yue Gao
- Department of Chemistry, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Tsinghua University, Beijing 100084, China.
| | - Pu-Guang Chen
- Department of Chemistry, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Tsinghua University, Beijing 100084, China.
| | - Yan-Fang Liu
- Department of Chemistry, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Tsinghua University, Beijing 100084, China.
| | - Yong-Xiang Chen
- Department of Chemistry, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Tsinghua University, Beijing 100084, China.
| | - Yan-Mei Li
- Department of Chemistry, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Tsinghua University, Beijing 100084, China.
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12
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Uesaka A, Ueda M, Makino A, Imai T, Sugiyama J, Kimura S. Morphology control between twisted ribbon, helical ribbon, and nanotube self-assemblies with his-containing helical peptides in response to pH change. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:1022-8. [PMID: 24410257 DOI: 10.1021/la404784e] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
pH-Responsive molecular assemblies with a variation in morphology ranging from a twisted ribbon, a helical ribbon, to a nanotube were prepared from a novel A3B-type amphiphilic peptide having three hydrophilic poly(sarcosine) (A block) chains, a hydrophobic helical dodecapeptide (B block), and two histidine (His) residues between the A3 and B blocks. The A3B-type peptide adopted morphologies of the twisted ribbon at pH 3.0, the helical ribbon at pH 5.0, and the nanotube at pH 7.4, depending upon the protonation states of the two His residues. On the other hand, another A3B-type peptide having one His residue between the A3 and B blocks showed a morphology change only between the helical ribbon and the relatively planar sheets with pH variation in this range. The morphology change is thus induced by one- or two-charge generation at the linking site of the hydrophilic and hydrophobic blocks of the component amphiphiles but in different ways.
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Affiliation(s)
- Akihiro Uesaka
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University , Kyoto-Daigaku-Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
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13
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Geraci C, Consoli GML, Granata G, Galante E, Palmigiano A, Pappalardo M, Di Puma SD, Spadaro A. First Self-Adjuvant Multicomponent Potential Vaccine Candidates by Tethering of Four or Eight MUC1 Antigenic Immunodominant PDTRP Units on a Calixarene Platform: Synthesis and Biological Evaluation. Bioconjug Chem 2013; 24:1710-20. [DOI: 10.1021/bc400242y] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Corrada Geraci
- CNR Istituto di Chimica Biomolecolare, Via P. Gaifami 18, I-95126 Catania, Italy
| | - Grazia M. L. Consoli
- CNR Istituto di Chimica Biomolecolare, Via P. Gaifami 18, I-95126 Catania, Italy
| | - Giuseppe Granata
- CNR Istituto di Chimica Biomolecolare, Via P. Gaifami 18, I-95126 Catania, Italy
- Dipartimento
di Scienze del Farmaco, Università di Catania, Viale A.
Doria 6, I-95125 Catania, Italy
| | - Eva Galante
- CNR Istituto di Chimica Biomolecolare, Via P. Gaifami 18, I-95126 Catania, Italy
| | - Angelo Palmigiano
- CNR Istituto per la Chimica e la Tecnologia dei Polimeri, Via P. Gaifami 18, I-95126 Catania, Italy
| | - Maria Pappalardo
- Dipartimento
di Scienze del Farmaco, Università di Catania, Viale A.
Doria 6, I-95125 Catania, Italy
| | - Salvatore D. Di Puma
- Dipartimento
di Scienze del Farmaco, Università di Catania, Viale A.
Doria 6, I-95125 Catania, Italy
| | - Angelo Spadaro
- Dipartimento
di Scienze del Farmaco, Università di Catania, Viale A.
Doria 6, I-95125 Catania, Italy
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Huynh AS, Chung WJ, Cho HI, Moberg VE, Celis E, Morse DL, Vagner J. Novel toll-like receptor 2 ligands for targeted pancreatic cancer imaging and immunotherapy. J Med Chem 2012; 55:9751-62. [PMID: 23098072 DOI: 10.1021/jm301002f] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Toll-like receptor 2 (TLR2) is a target for immune system stimulation during cancer immunotherapy and a cell-surface marker for pancreatic cancer. To develop targeted agents for cancer imaging and therapy, we designed, synthesized, and characterized 13 novel, fully synthetic high affinity TLR2 agonists. Analogue 10 had the highest agonist activity (NF-κB functional assay, EC(50) = 20 nM) and binding affinity (competitive binding assay, K(i) = 25 nM). As an immune adjuvant, compound 10 stimulated the immune system in vivo by generation and persistence of antigen-specific CD8+ T cells indicating its potential use in cancer immunotherapy. After conjugation of near-infrared dye to 10, agonist activity (EC(50) = 34 nM) and binding affinity (K(i) = 11 nM) were retained in 13. Fluorescence signal was present in TLR2 expressing pancreatic tumor xenografts 24 h after injection of 13, while an excess of unlabeled ligand blocked 13 from binding to the tumor, resulting in significantly decreased signal (p < 0.001) demonstrating in vivo selectivity.
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Affiliation(s)
- Amanda Shanks Huynh
- Department of Cancer Imaging and Metabolism, H. Lee Moffitt Cancer Center and Research Institute, 12902 Magnolia Drive, Tampa, Florida 33612, USA
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15
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Wilkinson BL, Malins LR, Chun CKY, Payne RJ. Synthesis of MUC1–lipopeptide chimeras. Chem Commun (Camb) 2010; 46:6249-51. [DOI: 10.1039/c0cc01360a] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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16
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Khan S, Weterings JJ, Britten CM, de Jong AR, Graafland D, Melief CJM, van der Burg SH, van der Marel G, Overkleeft HS, Filippov DV, Ossendorp F. Chirality of TLR-2 ligand Pam3CysSK4 in fully synthetic peptide conjugates critically influences the induction of specific CD8+ T-cells. Mol Immunol 2008; 46:1084-91. [PMID: 19027958 DOI: 10.1016/j.molimm.2008.10.006] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2008] [Revised: 09/24/2008] [Accepted: 10/08/2008] [Indexed: 02/06/2023]
Abstract
Covalent conjugation of synthetic Toll-like receptor ligands (TLR-L) to synthetic antigenic peptides provides well-defined constructs that have significantly improved capacity to induce efficient priming of CD8(+) T lymphocytes in vivo. We have recently explored the cellular mechanisms underlying the efficient induction of a CD8(+) cytotoxic T lymphocyte response by such synthetic model vaccines [Khan, S., Bijker, M.S., Weterings, J.J., Tanke, H.J., Adema, G.J., van, H.T., Drijfhout, J.W., Melief, C.J., Overkleeft, H.S., van der Marel, G.A., Filippov, D.V., van der Burg, S.H., Ossendorp, F., 2007. Distinct uptake mechanisms but similar intracellular processing of two different toll-like receptor ligand-peptide conjugates in dendritic cells. J. Biol. Chem. 282, 21145-21159.]. In the current study we have investigated the behaviour of two diastereomers of the TLR-2 ligand Pam(3)CSK(4) (Pam) derivatives, namely the R- and S-epimers at C-2 of the glycerol moiety. Other studies have shown that the Pam(3)Cys based lipopeptides of R-configuration (Pam(R)) in the glycerol moiety enhanced macrophage and B-cell activation compared to those with S-configuration (Pam(S)). Here we report that Pam(R)-conjugates lead to better activation of dendritic cells than the Pam(S)-conjugates as judged by higher IL-12 secretion, upregulation of relevant markers for dendritic cell maturation. In contrast both epimers were internalized equally efficient in a clathrin-dependent manner indicating no qualitative difference in the uptake of the two stereoisomeric Pam-conjugates. We conclude that the enhanced DC activation is due to enhanced TLR-2 triggering by the Pam(R)-conjugate in contrast to the Pam(S)-conjugate. Importantly, induction of specific CD8(+) T-cells was significantly higher in mice injected with the Pam(R)-conjugates compared to mice injected with the Pam(S)-conjugate. In summary we show that the favourable effects of the Pam(R)-configuration of TLR-2 ligand can be attributed to direct effects on dendritic cells resulting in enhancement of CD8(+) T-cell responses.
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Affiliation(s)
- Selina Khan
- Department of Immunohematology and Blood Transfusion, Leiden University Medical Centre, PO Box 9600, 2300 RC Leiden, The Netherlands.
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17
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Voss S, Ulmer A, Jung G, Wiesmüller KH, Brock R. The activity of lipopeptide TLR2 agonists critically depends on the presence of solubilizers. Eur J Immunol 2007; 37:3489-98. [DOI: 10.1002/eji.200737537] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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18
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Seyberth T, Voss S, Brock R, Wiesmüller KH, Jung G. Lipolanthionine Peptides Act as Inhibitors of TLR2-Mediated IL-8 Secretion. Synthesis and Structure−Activity Relationships. J Med Chem 2006; 49:1754-65. [PMID: 16509590 DOI: 10.1021/jm050585d] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Lipoproteins from gram-positive and -negative bacteria, mycoplasma, and shorter synthetic lipopeptide analogues activate cells of the innate immune system via the Toll-like receptor TLR2/TLR1 or TLR2/TLR6 heterodimers. For this reason, these compounds constitute highly active adjuvants for vaccines either admixed or covalently linked. The lanthionine scaffold has structural similarity with the S-(2,3-dihydroxypropyl)cysteine core structure of the lipopeptides. Therefore, lanthionine-based lipopeptide amides were synthesized and probed for activity as potential TLR2 agonists or antagonists. A collection of analytically defined lipolanthionine peptide amides exhibited an inhibitory effect of the TLR2-mediated IL-8 secretion when applied in high molar excess to the agonistic synthetic lipopeptide Pam3Cys-Ser-(Lys)4-OH. Structure-activity relationships revealed the influence of the chirality of the two alpha-carbon atoms, the chain lengths of the attached fatty acids and fatty amines, and the oxidation level of the sulfur atom on the inhibitory activity of the lipolanthionine peptide amides.
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Affiliation(s)
- Tobias Seyberth
- Institute of Organic Chemistry, University of Tübingen, 72076 Tübingen, Germany
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19
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Buwitt-Beckmann U, Heine H, Wiesmüller KH, Jung G, Brock R, Akira S, Ulmer AJ. TLR1- and TLR6-independent recognition of bacterial lipopeptides. J Biol Chem 2006; 281:9049-57. [PMID: 16455646 DOI: 10.1074/jbc.m512525200] [Citation(s) in RCA: 196] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
Bacterial cell walls contain lipoproteins/peptides, which are strong modulators of the innate immune system. Triacylated lipopeptides are assumed to be recognized by TLR2/TLR1-, whereas diacylated lipopeptides use TLR2/TLR6 heteromers for signaling. Following our initial discovery of TLR6-independent diacylated lipopeptides, we could now characterize di- and triacylated lipopeptides (e.g. Pam(2)C-SK(4), Pam(3)C-GNNDESNISFKEK), which have stimulatory activity in TLR1- and in TLR6-deficient mice. Furthermore, for the first time, we present triacylated lipopeptides with short length ester-bound fatty acids (like PamOct(2)C-SSNASK(4)), which induce no response in TLR1-deficient cells. No differences in the phosphorylation of MAP kinases by lipopeptide analogs having different TLR2-coreceptor usage were observed. Blocking experiments indicated that different TLR2 heteromers recognize their specific lipopeptide ligands independently from each other. In summary, a triacylation pattern is necessary but not sufficient to render a lipopeptide TLR1-dependent, and a diacylation pattern is necessary but not sufficient to render a lipopeptide TLR6-dependent. Contrary to the current model, distinct lipopeptides are recognized by TLR2 in a TLR1- and TLR6-independent manner.
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Affiliation(s)
- Ute Buwitt-Beckmann
- Department of Immunology and Cell Biology, Research Center Borstel, 23845 Borstel, Germany
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20
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Buwitt-Beckmann U, Heine H, Wiesmüller KH, Jung G, Brock R, Ulmer AJ. Lipopeptide structure determines TLR2 dependent cell activation level. FEBS J 2006; 272:6354-64. [PMID: 16336272 DOI: 10.1111/j.1742-4658.2005.05029.x] [Citation(s) in RCA: 90] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Bacterial lipoproteins/peptides are composed of di-O-acylated-S-(2,3-dihydroxypropyl)-cysteinyl residues N-terminally coupled to distinct polypeptides, which can be N-acylated with a third fatty acid. Using a synthetic lipopeptide library we characterized the contribution of the lipid portion to the TLR2 dependent pattern recognition. We found that the two ester bound fatty acid length threshold is beyond eight C atoms because almost no response was elicited by cellular challenge with analogues carrying shorter acyl chains in HEK293 cells expressing recombinant human TLR2. In contrast, the amide bound fatty acid is of lesser importance. While two ester-bound palmitic acids mediate a high stimulatory activity of the respective analogue, a lipopeptide carrying one amide-bound and another ester-bound palmitic acid molecule was inactive. In addition, species specific LP recognition through murine and human TLR2 depended on the length of the two ester bound fatty acid chains. In conclusion, our results indicate the responsibility of both ester bound acyl chains but not of the amide bound fatty acid molecule for the TLR dependent cellular recognition of canonical triacylated LP, as well as a requirement for a minimal acyl chain length. Thus they might support the explanation of specific immuno-stimulatory potentials of different microorganisms and provide a basis for rational design of TLR2 specific adjuvants mediating immune activation to distinct levels.
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Affiliation(s)
- Ute Buwitt-Beckmann
- Department of Immunology and Cell Biology, Research Center Borstel, Borstel, Germany
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21
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Buwitt-Beckmann U, Heine H, Wiesmüller KH, Jung G, Brock R, Akira S, Ulmer AJ. Toll-like receptor 6-independent signaling by diacylated lipopeptides. Eur J Immunol 2005; 35:282-9. [PMID: 15580661 DOI: 10.1002/eji.200424955] [Citation(s) in RCA: 166] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Bacterial lipopeptides are strong immune modulators that activate early host responses after infection as well as initiating adjuvant effects on the adaptive immune system. These lipopeptides induce signaling in cells of the immune system through Toll-like receptor 2 (TLR2)-TLR1 or TLR2-TLR6 heteromers. So far it has been thought that triacylated lipopeptides, such as the synthetic N-palmitoyl-S-[2,3-bis(palmitoyloxy)-(2RS)-propyl]-(R)-cysteine (Pam3)-CSK4, signal through TLR2-TLR1 heteromers, whereas diacylated lipopeptides, like the macrophage-activating lipopeptide from Mycoplasma fermentans (MALP2) or S-[2,3-bis(palmitoyloxy)-(2RS)-propyl]-(R)-cysteine (Pam2)-CGNNDESNISFKEK, induce signaling through TLR2-TLR6 heteromers. Using new synthetic lipopeptide derivatives we addressed the contribution of the lipid and, in particular, the peptide moieties with respect to TLR2 heteromer usage. In contrast to the current model of receptor usage, not only triacylated lipopeptides, but also diacylated lipopeptides like Pam2CSK4 and the elongated MALP2 analog Pam2CGNNDESNISFKEK-SK4 (MALP2-SK4) induced B lymphocyte proliferation and TNF-alpha secretion in macrophages in a TLR6-independent manner as determined with cells from TLR6-deficient mice. Our results indicate that both the lipid and the N-terminal peptides of lipoproteins contribute to the specificity of recognition by TLR2 heteromers and are responsible for the ligand-receptor interaction on host cells.
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Affiliation(s)
- Ute Buwitt-Beckmann
- Department of Immunology and Cell Biology, Research Center Borstel, 23845 Borstel, Germany
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22
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Pinhal-Enfield G, Ramanathan M, Hasko G, Vogel SN, Salzman AL, Boons GJ, Leibovich SJ. An angiogenic switch in macrophages involving synergy between Toll-like receptors 2, 4, 7, and 9 and adenosine A(2A) receptors. THE AMERICAN JOURNAL OF PATHOLOGY 2003; 163:711-21. [PMID: 12875990 PMCID: PMC1868201 DOI: 10.1016/s0002-9440(10)63698-x] [Citation(s) in RCA: 200] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Adenosine A(2A) receptor (A(2A)R) agonists synergize with Escherichia coli (E. coli) LPS [toll-like receptor (TLR)4 agonist] to up-regulate vascular endothelial growth factor (VEGF) expression in murine macrophages. Here, we demonstrate that TLR2, TLR7, and TLR9, but not TLR3 and TLR5 agonists, also synergize with A(2A)R agonists and adenosine to up-regulate VEGF, while simultaneously strongly down-regulating TNFalpha expression. In the absence of adenosine or A(2A)R agonists, Porphyromonas gingivalis (P. gingivalis) LPS and PAM(3)CAG (TLR2 agonists), resiquimod (R848) (TLR7 agonist), and non-methylated CpG DNA (TLR9 agonist) strongly up-regulate TNFalpha expression, with no effect on VEGF. In the presence of adenosine or A(2A)R agonists, but not A(1)R agonists, TLR2, 4, 7, and 9 agonists strongly up-regulate VEGF expression, while simultaneously down-regulating TNFalpha. C57BL/10ScN (TLR4 deletion mutant) macrophages produce TNFalpha in response to TLR2, 3, 7, and 9 agonists, but not the TLR4 agonist E. coli LPS. With adenosine or A(2A)R agonists, TLR2, 7, and 9, but not TLR4 agonists, also synergistically up-regulate VEGF, while down-regulating TNFalpha expression. Polyinosinic-polycytidilic acid (poly(I:C)) (TLR3 agonist) stimulates TNFalpha expression in macrophages from both C57BL/10ScSn and C57BL/10ScN mice, but has little effect on VEGF expression in the presence of adenosine or A(2A)R agonists. R-flagellins from Serratia marcescens (S. marcescens) and Salmonella muenchen (S. muenchen) do not stimulate TNFalpha expression in either C57BL/10ScSn or C57BL10/ScN mice, and have no effect on VEGF production in the presence of adenosine or A(2A)R agonists. While adenosine and A(2A)R agonists strongly down-regulate TNFalpha protein expression induced by TLR2, 3, 4, 7, and 9 agonists, TNFalpha mRNA and NF-kappaB activation are not reduced. We propose a novel signaling pathway in murine macrophages involving synergy between TLRs 2, 4, 7, and 9 and A(2A)Rs, that up-regulates VEGF and down-regulates TNFalpha expression, thus acting as an angiogenic switch. This angiogenic switch may play an important role in ischemia when TLR agonists are present, providing an interface between innate immunity and wound healing.
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MESH Headings
- Adenine/analogs & derivatives
- Adenine/pharmacology
- Adenosine/pharmacology
- Adenosine-5'-(N-ethylcarboxamide)/pharmacology
- Angiogenesis Inhibitors/pharmacology
- Animals
- Cells, Cultured
- DNA-Binding Proteins/agonists
- DNA-Binding Proteins/metabolism
- Endothelial Growth Factors/metabolism
- Enzyme Inhibitors/pharmacology
- Humans
- Intercellular Signaling Peptides and Proteins/metabolism
- Lipopolysaccharides/pharmacology
- Lipoproteins/metabolism
- Lymphokines/metabolism
- Macrophages, Peritoneal/cytology
- Macrophages, Peritoneal/drug effects
- Macrophages, Peritoneal/metabolism
- Male
- Membrane Glycoproteins/agonists
- Membrane Glycoproteins/genetics
- Membrane Glycoproteins/metabolism
- Mice
- Mice, Inbred C57BL
- Mice, Knockout
- NF-kappa B/metabolism
- Neovascularization, Physiologic
- Paclitaxel/pharmacology
- Purinergic P1 Receptor Agonists
- Receptor, Adenosine A2A
- Receptors, Cell Surface/agonists
- Receptors, Cell Surface/genetics
- Receptors, Cell Surface/metabolism
- Receptors, Purinergic P1/metabolism
- Toll-Like Receptor 2
- Toll-Like Receptor 3
- Toll-Like Receptor 4
- Toll-Like Receptor 5
- Toll-Like Receptor 7
- Toll-Like Receptor 9
- Toll-Like Receptors
- Tumor Necrosis Factor-alpha/genetics
- Tumor Necrosis Factor-alpha/metabolism
- Up-Regulation/physiology
- Vascular Endothelial Growth Factor A
- Vascular Endothelial Growth Factors
- Vasodilator Agents/pharmacology
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Affiliation(s)
- Grace Pinhal-Enfield
- Department of Cell Biology and Molecular Medicine, New Jersey Medical School, UMDNJ, Newark, New Jersey 07013, USA
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23
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Hoff A, André T, Schäffer TE, Jung G, Wiesmüller KH, Brock R. Lipoconjugates for the noncovalent generation of microarrays in biochemical and cellular assays. Chembiochem 2002; 3:1183-91. [PMID: 12465026 DOI: 10.1002/1439-7633(20021202)3:12<1183::aid-cbic1183>3.0.co;2-q] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The generation of microarrays by functionalization of hydrophobic glass surfaces with conjugates of triacylated lipophilic end-groups and with a peptide or hapten as a test substance is presented. Immobilization on the hydrophobic surfaces through the triacylated anchor group is fully orthogonal to the reactivity of functional groups within the test substances. The technique is therefore free of risk that reactions of these functional groups may influence the biological activity of the test compounds in screening applications. In addition, no preactivation of either the surface or the compounds is required. Reagents and substrates may be stored at ambient conditions for long periods of time. The lipoconjugates are administered from aqueous solution enabling automated nanopipetting down to spot dimensions of 100 microm across. The microstructures are stable with respect to the conditions of biochemical assays and applications in cell biology. Due to the hydrophobicity of the nonfunctionalized surfaces, standard blocking protocols used in microtiter-plate testing can be employed, thereby inhibiting nonspecific binding of assay reagents. Generation of these microstructures on hydrophobic glass slides or coverslips enables highly sensitive multichannel read-outs with high-resolution fluorescence microscopy.
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Affiliation(s)
- Antje Hoff
- Group of Genomics and Proteomics, Center for Bioinformatics Tübingen, Institute for Cell Biology, University of Tübingen, Auf der Morgenstelle 15, 72076 Tübingen, Germany
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24
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Jung JH, Shimizu T. Direct Sol-Gel Replication of the Self-assembled Nanostructure Modified with H-bond Functionalities. CHEM LETT 2002. [DOI: 10.1246/cl.2002.1246] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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25
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Song J, Cheng Q, Stevens RC. Morphological manipulation of bolaamphiphilic polydiacetylene assemblies by controlled lipid doping. Chem Phys Lipids 2002; 114:203-14. [PMID: 11934401 DOI: 10.1016/s0009-3084(02)00007-5] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Morphological transformations of bolaamphiphilic polydiacetylene (L-Glu-Bis-3) lipid assemblies from helical ribbons to vesicles and flat sheets through controlled doping are described, and the role of specific lipid dopants in these processes is discussed. Upon doping with cell surface receptor G(M1) ganglioside, fluid vesicular structures start to emerge, coexisting with the micro-crystalline helical ribbons. The vesicle formation is further facilitated and stabilized by the introduction of cholesterol into the system, presumably through surface curvature variation induced by inhomogeneous distribution and dynamic clustering of G(M1) and cholesterol within the doped assemblies. Extended helical ribbons are "truncated" into patches of flat sheets when a sufficient amount of Bis-1, a structurally compatible symmetric bolaamphiphilic diacetylene lipid, is doped. The results reaffirm the important roles of packing geometry and headgroup chirality in the formation of extended helical ribbon structures. The doped assemblies of bolaamphiphiles allow for capture of intermediate structures of morphological transformation using transmission electron microscopy (TEM). A vesicle-to-ribbon transformation mechanism via lateral reorganization within relatively fluid vesicular microstructures has been suggested. Understanding of the doping-induced transformation process provides useful information for the design of advanced materials where the microscopic morphology of material is crucial to its function.
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Affiliation(s)
- Jie Song
- Materials Sciences Division, Lawrence Berkeley National Laboratory, University of California, Berkeley, CA 94720, USA
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26
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Song J, Cheng Q, Kopta S, Stevens RC. Modulating artificial membrane morphology: pH-induced chromatic transition and nanostructural transformation of a bolaamphiphilic conjugated polymer from blue helical ribbons to red nanofibers. J Am Chem Soc 2001; 123:3205-13. [PMID: 11457054 DOI: 10.1021/ja0035046] [Citation(s) in RCA: 116] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Design and characterization of helical ribbon assemblies of a bolaamphiphilic conjugated polymer and their color-coded transformation into nanofibers are described. An L-glutamic acid modified bolaamphiphilic diacetylene lipid was synthesized and self-assembled into right-handed helical ribbons with micron scale length and nano scale thickness under mild conditions. The ribbon structures were further stabilized by polymerizing well-aligned diacetylene units to form bisfunctional polydiacetylenes (PDAs). Transitions from flat sheets to helical ribbons and tubes were observed by transmission electron microscopy. The helical ribbons appear to originate from the rupture of flat sheets along domain edges and the peeling off between stacked lipid layers. These results point to the applicability of chiral packing theory in bolaamphiphilic supramolecular assemblies. Contact mode atomic force microscopy observations revealed that high order existed in the surface packing arrangement. Hexagonal and pseudorectangular packings were observed in flat and twisted regions of the ribbons, respectively, suggesting a correlation between microscopic morphologies and nanoscopic packing arrangements. The tricarboxylate functionalities of the bolaamphiphilic lipid provide a handle for the manipulation of the bisfunctional PDAs' morphology. Increasing solution pH caused the fraying of helical ribbons into nanofibers accompanied by a sharp blue-to-red chromatic transition. A dramatic change in circular dichroism spectra was observed during this process, suggesting the loss of chirality in packing. A model is proposed to account for the pH-induced morphological change and chromatic transition. The color-coded transition between two distinct microstructures would be useful in the design of sensors and other "smart" nanomaterials requiring defined molecular templates.
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Affiliation(s)
- J Song
- Materials Sciences Division, Lawrence Berkeley National Laboratory, University of California, Berkeley, California 94720, USA
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27
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Glunz PW, Hintermann S, Williams LJ, Schwarz JB, Kuduk SD, Kudryashov V, Lloyd KO, Danishefsky SJ. Design and Synthesis of Ley-Bearing Glycopeptides that Mimic Cell Surface Ley Mucin Glycoprotein Architecture. J Am Chem Soc 2000. [DOI: 10.1021/ja0011820] [Citation(s) in RCA: 55] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Peter W. Glunz
- Contribution from the Laboratories for Bioorganic Chemistry and Tumor Antigen Immunochemistry, Sloan-Kettering Institute for Cancer Research, 1275 York Avenue, New York, New York 10021, and the Department of Chemistry, Columbia University, Havemeyer Hall, New York, New York 10027
| | - Samuel Hintermann
- Contribution from the Laboratories for Bioorganic Chemistry and Tumor Antigen Immunochemistry, Sloan-Kettering Institute for Cancer Research, 1275 York Avenue, New York, New York 10021, and the Department of Chemistry, Columbia University, Havemeyer Hall, New York, New York 10027
| | - Lawrence J. Williams
- Contribution from the Laboratories for Bioorganic Chemistry and Tumor Antigen Immunochemistry, Sloan-Kettering Institute for Cancer Research, 1275 York Avenue, New York, New York 10021, and the Department of Chemistry, Columbia University, Havemeyer Hall, New York, New York 10027
| | - Jacob B. Schwarz
- Contribution from the Laboratories for Bioorganic Chemistry and Tumor Antigen Immunochemistry, Sloan-Kettering Institute for Cancer Research, 1275 York Avenue, New York, New York 10021, and the Department of Chemistry, Columbia University, Havemeyer Hall, New York, New York 10027
| | - Scott D. Kuduk
- Contribution from the Laboratories for Bioorganic Chemistry and Tumor Antigen Immunochemistry, Sloan-Kettering Institute for Cancer Research, 1275 York Avenue, New York, New York 10021, and the Department of Chemistry, Columbia University, Havemeyer Hall, New York, New York 10027
| | - Valery Kudryashov
- Contribution from the Laboratories for Bioorganic Chemistry and Tumor Antigen Immunochemistry, Sloan-Kettering Institute for Cancer Research, 1275 York Avenue, New York, New York 10021, and the Department of Chemistry, Columbia University, Havemeyer Hall, New York, New York 10027
| | - Kenneth O. Lloyd
- Contribution from the Laboratories for Bioorganic Chemistry and Tumor Antigen Immunochemistry, Sloan-Kettering Institute for Cancer Research, 1275 York Avenue, New York, New York 10021, and the Department of Chemistry, Columbia University, Havemeyer Hall, New York, New York 10027
| | - Samuel J. Danishefsky
- Contribution from the Laboratories for Bioorganic Chemistry and Tumor Antigen Immunochemistry, Sloan-Kettering Institute for Cancer Research, 1275 York Avenue, New York, New York 10021, and the Department of Chemistry, Columbia University, Havemeyer Hall, New York, New York 10027
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28
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Reichel F, Roelofsen AM, Geurts HP, van Der Gaast SJ, Feiters MC, Boons GJ. Synthesis and supramolecular characterization of a novel class of glycopyranosyl-containing amphiphiles. J Org Chem 2000; 65:3357-66. [PMID: 10843617 DOI: 10.1021/jo991685s] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A novel class of glycopeptidolipids is described, which potentially can be used as a novel antigen-delivery system. The compounds have been prepared by a combination of solid-supported and solution-based methods. The use of the orthogonally protected FmocLysDde derivative provided an opportunity to incorporate two different types lipids. It was found that the model compound 1 forms aggregates in aqueous media which can be described as rod or tubelike structures. The aggregates can be stabilized by topotactic photopolymerization. Studies on the structural analogues 2-5 revealed the effect of the carbohydrate, peptide, and lipid moiety on the aggregation properties. It is concluded that none of the structure elements can lay claim to be exclusively important for the formation of highly organized aggregates such as tubes, fibers, or helical ribbons from 1, but the presence of all of these structural elements afforded the most uniformly shaped extended structures.
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Affiliation(s)
- F Reichel
- School of Chemistry, The University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom
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29
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Glunz PW, Hintermann S, Schwarz JB, Kuduk SD, Chen XT, Williams LJ, Sames D, Danishefsky SJ, Kudryashov V, Lloyd KO. Probing Cell Surface “Glyco-Architecture” through Total Synthesis. Immunological Consequences of a Human Blood Group Determinant in a Clustered Mucin-like Context. J Am Chem Soc 1999. [DOI: 10.1021/ja992309s] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Peter W. Glunz
- Laboratories for Bioorganic Chemistry and Tumor Antigen Immunochemistry Sloan-Kettering Institute for Cancer Research 1275 York Ave., New York, New York 10021 Department of Chemistry, Columbia University New York, New York 10027
| | - Samuel Hintermann
- Laboratories for Bioorganic Chemistry and Tumor Antigen Immunochemistry Sloan-Kettering Institute for Cancer Research 1275 York Ave., New York, New York 10021 Department of Chemistry, Columbia University New York, New York 10027
| | - Jacob B. Schwarz
- Laboratories for Bioorganic Chemistry and Tumor Antigen Immunochemistry Sloan-Kettering Institute for Cancer Research 1275 York Ave., New York, New York 10021 Department of Chemistry, Columbia University New York, New York 10027
| | - Scott D. Kuduk
- Laboratories for Bioorganic Chemistry and Tumor Antigen Immunochemistry Sloan-Kettering Institute for Cancer Research 1275 York Ave., New York, New York 10021 Department of Chemistry, Columbia University New York, New York 10027
| | - Xiao-Tao Chen
- Laboratories for Bioorganic Chemistry and Tumor Antigen Immunochemistry Sloan-Kettering Institute for Cancer Research 1275 York Ave., New York, New York 10021 Department of Chemistry, Columbia University New York, New York 10027
| | - Lawrence J. Williams
- Laboratories for Bioorganic Chemistry and Tumor Antigen Immunochemistry Sloan-Kettering Institute for Cancer Research 1275 York Ave., New York, New York 10021 Department of Chemistry, Columbia University New York, New York 10027
| | - Dalibor Sames
- Laboratories for Bioorganic Chemistry and Tumor Antigen Immunochemistry Sloan-Kettering Institute for Cancer Research 1275 York Ave., New York, New York 10021 Department of Chemistry, Columbia University New York, New York 10027
| | - Samuel J. Danishefsky
- Laboratories for Bioorganic Chemistry and Tumor Antigen Immunochemistry Sloan-Kettering Institute for Cancer Research 1275 York Ave., New York, New York 10021 Department of Chemistry, Columbia University New York, New York 10027
| | - Valery Kudryashov
- Laboratories for Bioorganic Chemistry and Tumor Antigen Immunochemistry Sloan-Kettering Institute for Cancer Research 1275 York Ave., New York, New York 10021 Department of Chemistry, Columbia University New York, New York 10027
| | - Kenneth O. Lloyd
- Laboratories for Bioorganic Chemistry and Tumor Antigen Immunochemistry Sloan-Kettering Institute for Cancer Research 1275 York Ave., New York, New York 10021 Department of Chemistry, Columbia University New York, New York 10027
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