1
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Paulus J, Sewald N. Small molecule- and peptide-drug conjugates addressing integrins: A story of targeted cancer treatment. J Pept Sci 2024; 30:e3561. [PMID: 38382900 DOI: 10.1002/psc.3561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 11/15/2023] [Accepted: 11/16/2023] [Indexed: 02/23/2024]
Abstract
Targeted cancer treatment should avoid side effects and damage to healthy cells commonly encountered during traditional chemotherapy. By combining small molecule or peptidic ligands as homing devices with cytotoxic drugs connected by a cleavable or non-cleavable linker in peptide-drug conjugates (PDCs) or small molecule-drug conjugates (SMDCs), cancer cells and tumours can be selectively targeted. The development of highly affine, selective peptides and small molecules in recent years has allowed PDCs and SMDCs to increasingly compete with antibody-drug conjugates (ADCs). Integrins represent an excellent target for conjugates because they are overexpressed by most cancer cells and because of the broad knowledge about native binding partners as well as the multitude of small-molecule and peptidic ligands that have been developed over the last 30 years. In particular, integrin αVβ3 has been addressed using a variety of different PDCs and SMDCs over the last two decades, following various strategies. This review summarises and describes integrin-addressing PDCs and SMDCs while highlighting points of great interest.
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Affiliation(s)
- Jannik Paulus
- Organic and Bioorganic Chemistry, Faculty of Chemistry, Bielefeld University, Bielefeld, Germany
| | - Norbert Sewald
- Organic and Bioorganic Chemistry, Faculty of Chemistry, Bielefeld University, Bielefeld, Germany
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2
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Akar E, Kandemir D, Luleburgaz S, Kumbaraci V, Durmaz H. Efficient Post-Polymerization modification of pendant aldehyde functional polymer via reductive etherification reaction. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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3
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Brotherton EE, Jesson CP, Warren NJ, Smallridge MJ, Armes SP. New Aldehyde‐Functional Methacrylic Water‐Soluble Polymers. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202015298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Emma E. Brotherton
- Chemistry The University of Sheffield Dainton Building, Brook Hill Sheffield S3 7HF UK
| | - Craig P. Jesson
- Chemistry The University of Sheffield Dainton Building, Brook Hill Sheffield S3 7HF UK
| | - Nicholas J. Warren
- Chemistry The University of Sheffield Dainton Building, Brook Hill Sheffield S3 7HF UK
| | - Mark J. Smallridge
- GEO Specialty Chemicals Charleston Road, Hardley, Hythe Southampton SO45 3ZG UK
| | - Steven P. Armes
- Chemistry The University of Sheffield Dainton Building, Brook Hill Sheffield S3 7HF UK
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4
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Brotherton EE, Jesson CP, Warren NJ, Smallridge MJ, Armes SP. New Aldehyde-Functional Methacrylic Water-Soluble Polymers. Angew Chem Int Ed Engl 2021; 60:12032-12037. [PMID: 33617018 PMCID: PMC8252606 DOI: 10.1002/anie.202015298] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Revised: 02/15/2021] [Indexed: 12/18/2022]
Abstract
Aldehyde groups enable facile conjugation to proteins, enzymes, oligonucleotides or fluorescent dyes, yet there are no literature examples of water-soluble aldehyde-functional vinyl monomers. We report the synthesis of a new hydrophilic cis-diol-based methacrylic monomer (GEO5MA) by transesterification of isopropylideneglycerol penta(ethylene glycol) using methyl methacrylate followed by acetone deprotection via acid hydrolysis. The corresponding water-soluble aldehyde monomer, AGEO5MA, is prepared by aqueous periodate oxidation of GEO5MA at 22 °C. RAFT polymerization of GEO5MA yields the water-soluble homopolymer, PGEO5MA. Aqueous periodate oxidation of the terminal cis-diol units on PGEO5MA at 22 °C affords a water-soluble aldehyde-functional homopolymer (PAGEO5MA). Moreover, a library of hydrophilic statistical copolymers bearing cis-diol and aldehyde groups was prepared using sub-stoichiometric periodate/cis-diol molar ratios. The aldehyde groups on PAGEO5MA homopolymer were reacted in turn with three amino acids to demonstrate synthetic utility.
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Affiliation(s)
- Emma E Brotherton
- Chemistry, The University of Sheffield, Dainton Building, Brook Hill, Sheffield, S3 7HF, UK
| | - Craig P Jesson
- Chemistry, The University of Sheffield, Dainton Building, Brook Hill, Sheffield, S3 7HF, UK
| | - Nicholas J Warren
- Chemistry, The University of Sheffield, Dainton Building, Brook Hill, Sheffield, S3 7HF, UK
| | - Mark J Smallridge
- GEO Specialty Chemicals, Charleston Road, Hardley, Hythe, Southampton, SO45 3ZG, UK
| | - Steven P Armes
- Chemistry, The University of Sheffield, Dainton Building, Brook Hill, Sheffield, S3 7HF, UK
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5
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Kalia P, Jain A, Radha Krishnan R, Demuth DR, Steinbach-Rankins JM. Peptide-modified nanoparticles inhibit formation of Porphyromonas gingivalis biofilms with Streptococcus gordonii. Int J Nanomedicine 2017; 12:4553-4562. [PMID: 28790818 PMCID: PMC5488760 DOI: 10.2147/ijn.s139178] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
PURPOSE The interaction of Porphyromonas gingivalis with commensal streptococci promotes P. gingivalis colonization of the oral cavity. We previously showed that a synthetic peptide (BAR) derived from Streptococcus gordonii potently inhibited the formation of P. gingivalis/S. gordonii biofilms (IC50 =1.3 µM) and reduced P. gingivalis virulence in a mouse model of periodontitis. Thus, BAR represents a novel therapeutic to control periodontitis by limiting P. gingivalis colonization of the oral cavity. Here, we sought to develop drug-delivery vehicles for potential use in the oral cavity that comprise BAR-modified poly(lactic-co-glycolic)acid (PLGA) nanoparticles (NPs). METHODS PLGA-NPs were initially modified with palmitylated avidin and subsequently conjugated with biotinylated BAR. The extent of BAR modification was quantified using a fluorescent-labeled peptide. Inhibition of P. gingivalis adherence to S. gordonii by BAR-modified NPs was compared with free peptide using a two-species biofilm model. RESULTS BAR-modified NPs exhibited an average size of 99±29 nm and a more positive surface charge than unmodified NPs (zeta potentials of -7 mV and -25 mV, respectively). Binding saturation occurred when 37 nmol BAR/mg of avidin-NPs was used, which resulted in a payload of 7.42 nmol BAR/mg NPs. BAR-modified NPs bound to P. gingivalis in a dose-dependent manner and more potently inhibited P. gingivalis/S. gordonii adherence and biofilm formation relative to an equimolar amount of free peptide (IC50 of 0.2 µM versus 1.3 µM). BAR-modified NPs also disrupted the preformed P. gingivalis/S. gordonii biofilms more effectively than free peptide. Finally, we demonstrate that BAR-modified NPs promoted multivalent association with P. gingivalis, providing an explanation for the increased effectiveness of NPs. CONCLUSION These results indicate that BAR-modified NPs deliver a higher local dose of peptide and may represent a more effective therapeutic approach to limit P. gingivalis colonization of the oral cavity compared to treatment with formulations of free peptide.
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Affiliation(s)
- Paridhi Kalia
- Department of Oral Immunology and Infectious Diseases, University of Louisville School of Dentistry
| | - Ankita Jain
- Department of Oral Immunology and Infectious Diseases, University of Louisville School of Dentistry
| | - Ranjith Radha Krishnan
- Department of Oral Immunology and Infectious Diseases, University of Louisville School of Dentistry
| | - Donald R Demuth
- Department of Oral Immunology and Infectious Diseases, University of Louisville School of Dentistry.,Department of Microbiology and Immunology, University of Louisville School of Medicine
| | - Jill M Steinbach-Rankins
- Department of Microbiology and Immunology, University of Louisville School of Medicine.,Department of Bioengineering, University of Louisville Speed School of Engineering.,Department of Pharmacology and Toxicology, University of Louisville School of Medicine.,Center for Predictive Medicine, University of Louisville, Louisville, KY, USA
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6
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Rucinskaite G, Thompson SA, Paterson S, de la Rica R. Enzyme-coated Janus nanoparticles that selectively bind cell receptors as a function of the concentration of glucose. NANOSCALE 2017; 9:5404-5407. [PMID: 28426045 DOI: 10.1039/c7nr00298j] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
A method is proposed for controlling the number of nanoparticles bound to cell membranes via RGDS peptide-integrin interactions. It consists of propelling nanoparticles bearing the peptides with enzymes (glucose oxidase), which disrupts biomolecular interactions as a function of the concentration of enzyme substrate (glucose).
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Affiliation(s)
- Gabriele Rucinskaite
- Department of Pure and Applied Chemistry, WestCHEM, University of Strathclyde, Technology and Innovation Centre, 99 George Street, Glasgow, G1 1RD, Scotland, UK.
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7
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Gregori M, Taylor M, Salvati E, Re F, Mancini S, Balducci C, Forloni G, Zambelli V, Sesana S, Michael M, Michail C, Tinker-Mill C, Kolosov O, Sherer M, Harris S, Fullwood NJ, Masserini M, Allsop D. Retro-inverso peptide inhibitor nanoparticles as potent inhibitors of aggregation of the Alzheimer's Aβ peptide. NANOMEDICINE : NANOTECHNOLOGY, BIOLOGY, AND MEDICINE 2017; 13:723-732. [PMID: 27769888 DOI: 10.1016/j.nano.2016.10.006] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2016] [Revised: 09/21/2016] [Accepted: 10/10/2016] [Indexed: 11/21/2022]
Abstract
Aggregation of amyloid-β peptide (Aβ) is a key event in the pathogenesis of Alzheimer's disease (AD). We investigated the effects of nanoliposomes decorated with the retro-inverso peptide RI-OR2-TAT (Ac-rGffvlkGrrrrqrrkkrGy-NH2) on the aggregation and toxicity of Aβ. Remarkably low concentrations of these peptide inhibitor nanoparticles (PINPs) were required to inhibit the formation of Aβ oligomers and fibrils in vitro, with 50% inhibition occurring at a molar ratio of ~1:2000 of liposome-bound RI-OR2-TAT to Aβ. PINPs also bound to Aβ with high affinity (Kd=13.2-50 nM), rescued SHSY-5Y cells from the toxic effect of pre-aggregated Aβ, crossed an in vitro blood-brain barrier model (hCMEC/D3 cell monolayer), entered the brains of C57 BL/6 mice, and protected against memory loss in APPSWE transgenic mice in a novel object recognition test. As the most potent aggregation inhibitor that we have tested so far, we propose to develop PINPs as a potential disease-modifying treatment for AD.
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Affiliation(s)
- Maria Gregori
- University of Milano-Bicocca, Nanomedicine Center NANOMIB and School of Medicine and Surgery, Monza, (MB), Italy
| | - Mark Taylor
- University of Lancaster, Division of Biomedical and Life Sciences, Faculty of Health and Medicine, Lancaster, UK
| | - Elisa Salvati
- University of Milano-Bicocca, Nanomedicine Center NANOMIB and School of Medicine and Surgery, Monza, (MB), Italy
| | - Francesca Re
- University of Milano-Bicocca, Nanomedicine Center NANOMIB and School of Medicine and Surgery, Monza, (MB), Italy
| | - Simona Mancini
- University of Milano-Bicocca, Nanomedicine Center NANOMIB and School of Medicine and Surgery, Monza, (MB), Italy
| | - Claudia Balducci
- Department of Neuroscience, Istituto di Ricovero e Cura a Carattere Scientifico/Mario Negri Institute for Pharmacological Research, Milan, Italy
| | - Gianluigi Forloni
- Department of Neuroscience, Istituto di Ricovero e Cura a Carattere Scientifico/Mario Negri Institute for Pharmacological Research, Milan, Italy
| | - Vanessa Zambelli
- University of Milano-Bicocca, Nanomedicine Center NANOMIB and School of Medicine and Surgery, Monza, (MB), Italy
| | - Silvia Sesana
- University of Milano-Bicocca, Nanomedicine Center NANOMIB and School of Medicine and Surgery, Monza, (MB), Italy
| | - Maria Michael
- University of Lancaster, Division of Biomedical and Life Sciences, Faculty of Health and Medicine, Lancaster, UK
| | - Christos Michail
- University of Lancaster, Division of Biomedical and Life Sciences, Faculty of Health and Medicine, Lancaster, UK
| | - Claire Tinker-Mill
- University of Lancaster, Department of Physics, Faculty of Science and Technology, Lancaster, UK
| | - Oleg Kolosov
- University of Lancaster, Department of Physics, Faculty of Science and Technology, Lancaster, UK
| | - Michael Sherer
- University of Lancaster, Division of Biomedical and Life Sciences, Faculty of Health and Medicine, Lancaster, UK
| | - Stephen Harris
- Quotient Bioresearch (Rushden) Ltd, Rushden, Northamptonshire, UK
| | - Nigel J Fullwood
- University of Lancaster, Division of Biomedical and Life Sciences, Faculty of Health and Medicine, Lancaster, UK
| | - Massimo Masserini
- University of Milano-Bicocca, Nanomedicine Center NANOMIB and School of Medicine and Surgery, Monza, (MB), Italy
| | - David Allsop
- University of Lancaster, Division of Biomedical and Life Sciences, Faculty of Health and Medicine, Lancaster, UK.
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8
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Slegeris R, Ondrusek BA, Chung H. Catechol- and ketone-containing multifunctional bottlebrush polymers for oxime ligation and hydrogel formation. Polym Chem 2017. [DOI: 10.1039/c7py01112a] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
We report the synthesis of a highly-functional macromonomer, and subsequent crosslinkable poly(ethylene glycol) (PEG)-based bottlebrush polymers prepared via graft-through ring-opening metathesis polymerization (ROMP).
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Affiliation(s)
- Rimantas Slegeris
- Department of Chemical and Biomedical Engineering
- Florida State University
- Tallahassee
- USA
| | - Brian A. Ondrusek
- Department of Chemical and Biomedical Engineering
- Florida State University
- Tallahassee
- USA
| | - Hoyong Chung
- Department of Chemical and Biomedical Engineering
- Florida State University
- Tallahassee
- USA
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9
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Bhattacharya S, Ganivada MN, Dinda H, Das Sarma J, Shunmugam R. Biodegradable Copolymer for Stimuli-Responsive Sustained Release of Doxorubicin. ACS OMEGA 2016; 1:108-117. [PMID: 30023475 PMCID: PMC6044568 DOI: 10.1021/acsomega.6b00018] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Accepted: 06/23/2016] [Indexed: 06/02/2023]
Abstract
Pendent functionalization of biodegradable polymers provides unique importance in biological applications. In this work, we have synthesized a polymeric nanocarrier for the controlled release of the anticancer drug doxorubicin (DOXI). Inspired by the pH responsiveness of acylhydrazine bonds along with the interesting self-assembly behavior of amphiphilic copolymers, this report delineates the development of a PEG-SS-PCL-DOXI copolymer consisting of DOXI, PEG, and a caprolactone backbone. First, the inclusion of a PEG moiety in the copolymer helps to achieve biocompatibility and aqueous solubility as well as a prolonged circulation time of the nanocarrier. Second, an acid-sensitive acylhydrazine-based linkage is chosen to attach DOXI to trigger sustained drug release, whereas the inclusion of an enzymatically cleavable disulfide linkage in the backbone adds to the advantage of backbone biodegradability at the intracellular level.
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Affiliation(s)
- Sayantani Bhattacharya
- Polymer
Research Centre, Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, West Bengal 741246, India
| | - Mutyala Naidu Ganivada
- Polymer
Research Centre, Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, West Bengal 741246, India
| | - Himadri Dinda
- Polymer
Research Centre, Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, West Bengal 741246, India
| | - Jayasri Das Sarma
- Department
of Biological Sciences, Indian Institute
of Science Education and Research Kolkata, Mohanpur, West Bengal 741246, India
| | - Raja Shunmugam
- Polymer
Research Centre, Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, West Bengal 741246, India
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10
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Beezer DB, Harth E. Post-polymerization modification of branched polyglycidol withN-Hydroxy phthalimide to give ratio-controlled amino-oxy functionalized species. ACTA ACUST UNITED AC 2016. [DOI: 10.1002/pola.28168] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Dain B. Beezer
- Department of Chemistry; Vanderbilt University, 7665 Stevenson Center; Nashville Tennessee 37235
| | - Eva Harth
- Department of Chemistry; Vanderbilt University, 7665 Stevenson Center; Nashville Tennessee 37235
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11
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Jackson AW, Chandrasekharan P, Shi J, Rannard SP, Liu Q, Yang CT, He T. Synthesis and in vivo magnetic resonance imaging evaluation of biocompatible branched copolymer nanocontrast agents. Int J Nanomedicine 2015; 10:5895-907. [PMID: 26425088 PMCID: PMC4583124 DOI: 10.2147/ijn.s88764] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Branched copolymer nanoparticles (Dh =20–35 nm) possessing 1,4,7, 10-tetraazacyclododecane-N,N′,N″,N‴-tetraacetic acid macrocycles within their cores have been synthesized and applied as magnetic resonance imaging (MRI) nanosized contrast agents in vivo. These nanoparticles have been generated from novel functional monomers via reversible addition–fragmentation chain transfer polymerization. The process is very robust and synthetically straightforward. Chelation with gadolinium and preliminary in vivo experiments have demonstrated promising characteristics as MRI contrast agents with prolonged blood retention time, good biocompatibility, and an intravascular distribution. The ability of these nanoparticles to perfuse and passively target tumor cells through the enhanced permeability and retention effect is also demonstrated. These novel highly functional nanoparticle platforms have succinimidyl ester-activated benzoate functionalities within their corona, which make them suitable for future peptide conjugation and subsequent active cell-targeted MRI or the conjugation of fluorophores for bimodal imaging. We have also demonstrated that these branched copolymer nanoparticles are able to noncovalently encapsulate hydrophobic guest molecules, which could allow simultaneous bioimaging and drug delivery.
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Affiliation(s)
- Alexander W Jackson
- Institute of Chemical and Engineering Sciences (ICES), National University of Singapore, Singapore
| | - Prashant Chandrasekharan
- Laboratory of Molecular Imaging, Singapore Bioimaging Consortium, Agency for Science Technology and Research(A STAR), National University of Singapore, Singapore
| | - Jian Shi
- Department of Biological Science, National University of Singapore, Singapore
| | - Steven P Rannard
- Department of Chemistry, University of Liverpool, Liverpool, United Kingdom
| | - Quan Liu
- School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore
| | - Chang-Tong Yang
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore
| | - Tao He
- Institute of Chemical and Engineering Sciences (ICES), National University of Singapore, Singapore ; School of Chemistryand Chemical Engineering, HeFei University of Technology, Anhui, People's Republic of China
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12
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Nicolau SE, Davis LL, Duncan CC, Olsen TR, Alexis F, Whitehead DC, Van Horn BA. Oxime functionalization strategy for iodinated poly(epsilon-caprolactone) X-ray opaque materials. ACTA ACUST UNITED AC 2015. [DOI: 10.1002/pola.27706] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Samantha E. Nicolau
- Department of Chemistry and Biochemistry; College of Charleston; 66 George St. Charleston South Carolina 29424
| | - Lundy L. Davis
- Department of Chemistry and Biochemistry; College of Charleston; 66 George St. Charleston South Carolina 29424
| | - Caroline C. Duncan
- Department of Chemistry and Biochemistry; College of Charleston; 66 George St. Charleston South Carolina 29424
| | - Timothy R. Olsen
- Department of Bioengineering; Clemson University; 203 Rhodes Research Center Annex Clemson South Carolina 29634
| | - Frank Alexis
- Department of Bioengineering; Clemson University; 203 Rhodes Research Center Annex Clemson South Carolina 29634
- Institute of Biological Interfaces of Engineering; Department of Bioengineering; Clemson University; Clemson South Carolina 29634-0905
| | - Daniel C. Whitehead
- Department of Chemistry; Clemson University; 467 Hunter Laboratories Clemson South Carolina 29634
| | - Brooke A. Van Horn
- Department of Chemistry and Biochemistry; College of Charleston; 66 George St. Charleston South Carolina 29424
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13
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Jeon S, Ko H, Vijayakameswara Rao N, Yoon HY, You DG, Han HS, Um W, Saravanakumar G, Park JH. A versatile gold cross-linked nanoparticle based on triblock copolymer as the carrier of doxorubicin. RSC Adv 2015. [DOI: 10.1039/c5ra14044g] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Gold cross-linked nanoparticles based on PCL-b-PDMAEMA-b-PEG triblock copolymer has been developed as a carrier for anticancer drugs with enhanced biostability.
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Affiliation(s)
- Sangmin Jeon
- School of Chemical Engineering
- College of Engineering
- Sungkyunkwan University
- Suwon 440-746
- Republic of Korea
| | - Hyewon Ko
- Department of Health Sciences and Technology
- SAIHST
- Sungkyunkwan University
- Suwon 440-746
- Republic of Korea
| | - N. Vijayakameswara Rao
- School of Chemical Engineering
- College of Engineering
- Sungkyunkwan University
- Suwon 440-746
- Republic of Korea
| | - Hong Yeol Yoon
- School of Chemical Engineering
- College of Engineering
- Sungkyunkwan University
- Suwon 440-746
- Republic of Korea
| | - Dong Gil You
- School of Chemical Engineering
- College of Engineering
- Sungkyunkwan University
- Suwon 440-746
- Republic of Korea
| | - Hwa Seung Han
- School of Chemical Engineering
- College of Engineering
- Sungkyunkwan University
- Suwon 440-746
- Republic of Korea
| | - Wooram Um
- Department of Health Sciences and Technology
- SAIHST
- Sungkyunkwan University
- Suwon 440-746
- Republic of Korea
| | - Gurusamy Saravanakumar
- School of Chemical Engineering
- College of Engineering
- Sungkyunkwan University
- Suwon 440-746
- Republic of Korea
| | - Jae Hyung Park
- School of Chemical Engineering
- College of Engineering
- Sungkyunkwan University
- Suwon 440-746
- Republic of Korea
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14
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Rao N V, Dinda H, Venu P, Sarma JD, Shunmugam R. Smart nanocarrier from norbornene based triblock copolymers for the sustained release of multi-cancer drugs. RSC Adv 2014. [DOI: 10.1039/c4ra07549h] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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15
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Foster JC, Matson JB. Functionalization of Methacrylate Polymers with Thiooximes: A Robust Postpolymerization Modification Reaction and a Method for the Preparation of H2S-Releasing Polymers. Macromolecules 2014. [DOI: 10.1021/ma501044b] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Jeffrey C. Foster
- Department
of Chemistry and
Macromolecules and Interfaces Institute, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - John B. Matson
- Department
of Chemistry and
Macromolecules and Interfaces Institute, Virginia Tech, Blacksburg, Virginia 24061, United States
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16
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Ganivada MN, Rao N V, Dinda H, Kumar P, Das Sarma J, Shunmugam R. Biodegradable Magnetic Nanocarrier for Stimuli Responsive Drug Release. Macromolecules 2014. [DOI: 10.1021/ma500384m] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Mutyala Naidu Ganivada
- Polymer Research Centre,
Department of Chemical Sciences and ‡Department of
Biological Sciences, Indian Institute of Science Education and Research Kolkata, India
| | - Vijayakameswara Rao N
- Polymer Research Centre,
Department of Chemical Sciences and ‡Department of
Biological Sciences, Indian Institute of Science Education and Research Kolkata, India
| | - Himadri Dinda
- Polymer Research Centre,
Department of Chemical Sciences and ‡Department of
Biological Sciences, Indian Institute of Science Education and Research Kolkata, India
| | - Pawan Kumar
- Polymer Research Centre,
Department of Chemical Sciences and ‡Department of
Biological Sciences, Indian Institute of Science Education and Research Kolkata, India
| | - Jayasri Das Sarma
- Polymer Research Centre,
Department of Chemical Sciences and ‡Department of
Biological Sciences, Indian Institute of Science Education and Research Kolkata, India
| | - Raja Shunmugam
- Polymer Research Centre,
Department of Chemical Sciences and ‡Department of
Biological Sciences, Indian Institute of Science Education and Research Kolkata, India
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17
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McReynolds KD, Dimas D, Le H. Synthesis of Hydrophilic Aminooxy Linkers and Multivalent Cores for Chemoselective Aldehyde/Ketone Conjugation. Tetrahedron Lett 2014; 55:2270-2273. [PMID: 25382876 PMCID: PMC4220302 DOI: 10.1016/j.tetlet.2014.02.085] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
A series of three linear and two trivalent aminooxy-containing hydrophilic linkers and cores were synthesized. The five molecules contain from one to three aminooxy groups, and all but one contain an ether for enhanced aqueous solubility. These unique and versatile molecules can be utilized in the chemoselective conjugation of aldehyde/ketone-containing molecules, including reducing sugars, under mild aqueous conditions, and give rise to oxime-containing conjugates useful in a wide variety of applications and studies. The value of these aminooxy-based molecules and the ease and speed of preparation of both monovalent and multivalent oxime-linked molecules is demonstrated in two examples using the disaccharide cellobiose; one with a linear linker, and the second with a trivalent core.
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Affiliation(s)
- Katherine D. McReynolds
- Department of Chemistry, California State University, Sacramento, 6000 J Street Sacramento, CA 95819-6057
| | - Dustin Dimas
- Department of Chemistry, California State University, Sacramento, 6000 J Street Sacramento, CA 95819-6057
| | - Hoang Le
- Department of Chemistry, California State University, Sacramento, 6000 J Street Sacramento, CA 95819-6057
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18
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Tang X, Han J, Zhu Z, Lu X, Chen H, Cai Y. Facile synthesis, sequence-tuned thermoresponsive behaviours and reaction-induced reorganization of water-soluble keto-polymers. Polym Chem 2014. [DOI: 10.1039/c4py00146j] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Water-soluble keto-polymers: facile synthesis in methanol on irradiation with visible light at 25 °C, sequence-tuned thermoresponsive behaviours and reaction-induced reorganization.
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Affiliation(s)
- Xianghua Tang
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123, China
| | - Jie Han
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123, China
| | - Zhengguang Zhu
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123, China
| | - Xinhua Lu
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123, China
| | - Hong Chen
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123, China
| | - Yuanli Cai
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123, China
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19
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Polycarbonate Magnetic Microspheres Containing Tumor Necrosis Factor- α for Potential Targeted Hepatic Carcinoma Therapeutics. J Drug Deliv Sci Technol 2014. [DOI: 10.1016/s1773-2247(14)50008-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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20
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Ulrich S, Boturyn D, Marra A, Renaudet O, Dumy P. Oxime Ligation: A Chemoselective Click-Type Reaction for Accessing Multifunctional Biomolecular Constructs. Chemistry 2013; 20:34-41. [DOI: 10.1002/chem.201302426] [Citation(s) in RCA: 176] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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21
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Hu B, Du HJ, Yan GP, Zhuo RX, Wu Y, Fan CL. Magnetic polycarbonate microspheres for tumor-targeted delivery of tumor necrosis factor. Drug Deliv 2013; 21:204-12. [PMID: 24117028 DOI: 10.3109/10717544.2013.843609] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
OBJECTIVE The specific expression of transferrin receptor can represent a diagnostic tool or therapeutic target in solid tumors expressing this antigen. Herein, the human transferrin receptor monoclonal antibody (T9) was investigated as a tumor-targeting group for active targeted-drug delivery systems. MATERIALS AND METHODS A tumor-targeted conjugate T9-TNF was synthesized by the attachment of both human transferrin receptor monoclonal antibody (T9) as a tumor-targeting group and human tumor necrosis factor-α (TNF) as an anti-cancer drug to two terminated hydroxyl groups of poly(ethylene glycol). Subsequently, a solvent evaporation technique was adopted to produce anti-cancer magnetic polymer microspheres T9-TNF-PC-M containing T9-TNF and Fe3O4 magnetic ultrafine powders (M) using poly(trimethylene carbonate-co-5,5-dimethyl trimethylene carbonate) (PC, P(TMC-co-DTC)) as a polymeric carrier. RESULTS AND DISCUSSION These magnetic polycarbonate microspheres possessed a steady TNF release rate in phosphate buffer saline solution, strong magnetic responsiveness and high T9-TNF loading capacity. In vitro cytotoxicity assays demonstrated the microspheres T9-TNF-PC-M and conjugate T9-TNF were strongly inhibitory to the human hepatic carcinoma (Bel-7204) cells. In vivo site-specific therapy in nude mice with human hepatic carcinoma indicated that the microspheres T9-TNF-PC-M and conjugate T9-TNF possessed markedly higher anti-tumor activity against Bel-7204 in mice than that of TNF. CONCLUSIONS These results indicated that the magnetic polycarbonate microspheres were suitable as the potential-targeted treatment for hepatic carcinoma therapeutics.
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Affiliation(s)
- Bin Hu
- School of Material Science and Engineering, Wuhan Institute of Technology , Wuhan , People's Republic of China
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22
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Liu J, Li RC, Sand GJ, Bulmus V, Davis TP, Maynard HD. Keto-Functionalized Polymer Scaffolds As Versatile Precursors to Polymer Side Chain Conjugates. Macromolecules 2012; 46:8-14. [PMID: 24761032 DOI: 10.1021/ma302183g] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
A new methacrylate monomer with a reactive ketone side-chain, 2-(4-oxo-pentanoate) ethyl methacrylate (PAEMA), was synthesized and subsequently polymerized by reversible addition-fragmentation chain transfer (RAFT) polymerization to give a polymer with a narrow molecular weight distribution (PDI = 1.25). The polymer was chain extended with poly(ethylene glycol methyl ether acrylate) (PEGMA) to yield a block copolymer. Aminooxy containing small molecules and oligoethylene glycol were conjugated to the ketone functionality of the side chain in high yields. Cytotoxicity of the oxime-linked tetra(ethylene glycol) polymer to mouse fibroblast cells was investigated; the polymer was found to be non-cytotoxic up to 1 mg/mL. The ease with which this polymer is functionalized, suggests that it may be useful in forming tailored polymeric medicines.
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Affiliation(s)
- Jingquan Liu
- Department of Chemistry and Biochemistry & California Nanosystems Institute, University of California, Los Angeles, CA 90095-1569, USA ; Centre for Advanced Macromolecular Design, School of Chemical Sciences and Engineering, The University of New South Wales NSW 2052
| | - Ronald C Li
- Department of Chemistry and Biochemistry & California Nanosystems Institute, University of California, Los Angeles, CA 90095-1569, USA
| | - Gregory J Sand
- Department of Chemistry and Biochemistry & California Nanosystems Institute, University of California, Los Angeles, CA 90095-1569, USA
| | - Volga Bulmus
- Centre for Advanced Macromolecular Design, School of Chemical Sciences and Engineering, The University of New South Wales NSW 2052
| | - Thomas P Davis
- Centre for Advanced Macromolecular Design, School of Chemical Sciences and Engineering, The University of New South Wales NSW 2052
| | - Heather D Maynard
- Department of Chemistry and Biochemistry & California Nanosystems Institute, University of California, Los Angeles, CA 90095-1569, USA
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23
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Mane SR, Rao N V, Chaterjee K, Dinda H, Nag S, Kishore A, Das Sarma J, Shunmugam R. Amphiphilic Homopolymer Vesicles as Unique Nano-Carriers for Cancer Therapy. Macromolecules 2012. [DOI: 10.1021/ma301644m] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Shivshankar R. Mane
- Polymer Research Centre, Department
of Chemical Sciences, and ‡Department of Biological Sciences, Indian Institute of Science Education and Research Kolkata (IISER K), Kolkata, India
| | - Vijayakameswara Rao N
- Polymer Research Centre, Department
of Chemical Sciences, and ‡Department of Biological Sciences, Indian Institute of Science Education and Research Kolkata (IISER K), Kolkata, India
| | - Koushik Chaterjee
- Polymer Research Centre, Department
of Chemical Sciences, and ‡Department of Biological Sciences, Indian Institute of Science Education and Research Kolkata (IISER K), Kolkata, India
| | - Himadri Dinda
- Polymer Research Centre, Department
of Chemical Sciences, and ‡Department of Biological Sciences, Indian Institute of Science Education and Research Kolkata (IISER K), Kolkata, India
| | - Soma Nag
- Polymer Research Centre, Department
of Chemical Sciences, and ‡Department of Biological Sciences, Indian Institute of Science Education and Research Kolkata (IISER K), Kolkata, India
| | - Abhinoy Kishore
- Polymer Research Centre, Department
of Chemical Sciences, and ‡Department of Biological Sciences, Indian Institute of Science Education and Research Kolkata (IISER K), Kolkata, India
| | - Jayasri Das Sarma
- Polymer Research Centre, Department
of Chemical Sciences, and ‡Department of Biological Sciences, Indian Institute of Science Education and Research Kolkata (IISER K), Kolkata, India
| | - Raja Shunmugam
- Polymer Research Centre, Department
of Chemical Sciences, and ‡Department of Biological Sciences, Indian Institute of Science Education and Research Kolkata (IISER K), Kolkata, India
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24
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Jung B, Theato P. Chemical Strategies for the Synthesis of Protein–Polymer Conjugates. BIO-SYNTHETIC POLYMER CONJUGATES 2012. [DOI: 10.1007/12_2012_169] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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25
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De S, Stelzer C, Khan A. A general synthetic strategy to prepare poly(ethylene glycol)-based multifunctional copolymers. Polym Chem 2012. [DOI: 10.1039/c2py20289a] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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26
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Rao N V, Mane S, Kishore A, Das Sarma J, Shunmugam R. Norbornene Derived Doxorubicin Copolymers as Drug Carriers with pH Responsive Hydrazone Linker. Biomacromolecules 2011; 13:221-30. [DOI: 10.1021/bm201478k] [Citation(s) in RCA: 105] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Vijayakameswara Rao N
- Polymer
Research Centre, Department of Chemical Sciences and ‡Department of Biological Sciences, Indian Institute of Science Education and Research Kolkata (IISER K), India
| | - ShivshankarR. Mane
- Polymer
Research Centre, Department of Chemical Sciences and ‡Department of Biological Sciences, Indian Institute of Science Education and Research Kolkata (IISER K), India
| | - Abhinoy Kishore
- Polymer
Research Centre, Department of Chemical Sciences and ‡Department of Biological Sciences, Indian Institute of Science Education and Research Kolkata (IISER K), India
| | - Jayasri Das Sarma
- Polymer
Research Centre, Department of Chemical Sciences and ‡Department of Biological Sciences, Indian Institute of Science Education and Research Kolkata (IISER K), India
| | - Raja Shunmugam
- Polymer
Research Centre, Department of Chemical Sciences and ‡Department of Biological Sciences, Indian Institute of Science Education and Research Kolkata (IISER K), India
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27
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Obermeier B, Wurm F, Mangold C, Frey H. Multifunctional Poly(ethylene glycol)s. Angew Chem Int Ed Engl 2011; 50:7988-97. [DOI: 10.1002/anie.201100027] [Citation(s) in RCA: 158] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2011] [Indexed: 11/10/2022]
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28
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Obermeier B, Wurm F, Mangold C, Frey H. Multifunktionelle Poly(ethylenglycole). Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201100027] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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29
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Chittasupho C, Siahaan TJ, Vines CM, Berkland C. Autoimmune therapies targeting costimulation and emerging trends in multivalent therapeutics. Ther Deliv 2011; 2:873-89. [PMID: 21984960 PMCID: PMC3186944 DOI: 10.4155/tde.11.60] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Proteins participating in immunological signaling have emerged as important targets for controlling the immune response. A multitude of receptor-ligand pairs that regulate signaling pathways of the immune response have been identified. In the complex milieu of immune signaling, therapeutic agents targeting mediators of cellular signaling often either activate an inflammatory immune response or induce tolerance. This review is primarily focused on therapeutics that inhibit the inflammatory immune response by targeting membrane-bound proteins regulating costimulation or mediating immune-cell adhesion. Many of these signals participate in larger, organized structures such as the immunological synapse. Receptor clustering and arrangement into organized structures is also reviewed and emerging trends implicating a potential role for multivalent therapeutics is posited.
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Affiliation(s)
- Chuda Chittasupho
- Department of Pharmaceutical Chemistry, University of Kansas, KS, USA
- Department of Pharmaceutical Technology, Srinakharinwirot University, Nakhonnayok, Thailand
| | - Teruna J Siahaan
- Department of Pharmaceutical Chemistry, University of Kansas, KS, USA
| | - Charlotte M Vines
- Department of Microbiology, Molecular Genetics & Immunology, University of Kansas Medical Center, KS, USA
| | - Cory Berkland
- Department of Pharmaceutical Chemistry, University of Kansas, KS, USA
- Department of Pharmaceutical Chemistry, Department of Chemical & Petroleum Engineering, 2030 Becker Drive, Lawrence, KS 66047, USA
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30
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Hu B, Tu YY, Yan GP, Zhuo RX, Bottle SE, Wu Y, Fan CL, Duan YJ. Polycarbonate microspheres containing mitomycin C and magnetic powders as potential hepatic carcinoma therapeutics. Colloids Surf B Biointerfaces 2011; 84:550-5. [DOI: 10.1016/j.colsurfb.2011.02.016] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2010] [Revised: 01/28/2011] [Accepted: 02/04/2011] [Indexed: 01/27/2023]
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31
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Chittasupho C, Shannon L, Siahaan TJ, Vines CM, Berkland C. Nanoparticles targeting dendritic cell surface molecules effectively block T cell conjugation and shift response. ACS NANO 2011; 5:1693-1702. [PMID: 21375342 PMCID: PMC4207654 DOI: 10.1021/nn102159g] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Dendritic cells (DCs) are potent professional antigen presenting cells (APC) that activate naïve T cells. Interaction of ICAM-1 and LFA-1 molecules on each cell is required for T cell conjugation to DCs, which leads to naïve CD4+ T cell activation and proliferation. Nanoparticles capable of blocking LFA-1/ICAM-1 interaction were studied as inhibitors of T cell conjugation to DCs. Primary DCs were primed with ovalbumin, then treated with a peptide that binds ICAM-1 (LABL), a peptide that binds LFA-1 (cIBR), or the same peptides covalently linked to the surface of poly(dl-lactic-co-glycolic acid) nanoparticles (NPs). LABL-NPs and cIBR-NPs rapidly bound to DCs and inhibited T cell conjugation to DCs to a greater extent than the free peptides, unconjugated nanoparticles (NPs), anti-ICAM-1 antibodies, and anti-LFA-1 antibodies. In addition, DCs treated with NPs or with cIBR-NPs stimulated the proliferation of T cells, but DCs treated with LABL-NPs did not stimulate T cell proliferation. Nanoparticles targeting ICAM-1 or LFA-1 also altered cytokine production by DC cocultured with T cells when compared to free ligands, suggesting that these NPs may offer a unique tool for shaping T cell response.
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Affiliation(s)
- Chuda Chittasupho
- Department of Pharmaceutical Chemistry, University of Kansas, Lawrence, Kansas 66047, United States
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32
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Broyer RM, Grover GN, Maynard HD. Emerging synthetic approaches for protein-polymer conjugations. Chem Commun (Camb) 2011; 47:2212-26. [PMID: 21229146 PMCID: PMC3066092 DOI: 10.1039/c0cc04062b] [Citation(s) in RCA: 165] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Protein-polymer conjugates are important in diverse fields including drug delivery, biotechnology, and nanotechnology. This feature article highlights recent advances in the synthesis and application of protein-polymer conjugates by controlled radical polymerization techniques. Special emphasis on new applications of the materials, particularly in biomedicine, is provided.
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Affiliation(s)
| | | | - Heather D. Maynard
- Department of Chemistry & Biochemistry and the California NanoSystems Institute, University of California, 607 Charles E. Young Dr. East, Los Angeles, CA 90095, USA. ; Tel: +1 310 267 5162
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33
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Shokeen M, Pressly ED, Hagooly A, Zheleznyak A, Ramos N, Fiamengo AL, Welch MJ, Hawker CJ, Anderson CJ. Evaluation of multivalent, functional polymeric nanoparticles for imaging applications. ACS NANO 2011; 5:738-47. [PMID: 21275414 PMCID: PMC3043165 DOI: 10.1021/nn102278w] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
A series of multivalent, functional polymer nanoparticles with diagnostic/imaging units and targeting ligands for molecular targeting were synthesized with the loading of the chain-end-functionalized GRGDS peptide targeting sequence (model system based on integrin α(v)β(3)) ranging from 0 to 50%. Accurate structural and functional group control in these systems was achieved through a modular approach involving the use of multiple functionalized macromonomer/monomer units combined with living free radical polymerization. In cellulo results show an increase in uptake in α(v)β(3) integrin-positive U87MG glioblastoma cells with increasing RGD loading and a possible upper limit on the effectiveness of the number of RGD peptides for targeting α(v)β(3) integrin. Significantly, this increased targeting efficiency is coupled with in vivo biodistribution results, which show decreased blood circulation and increased liver uptake with increasing RGD loading. The results demonstrate the importance of controlling ligand loading in order to achieve optimal performance for therapeutic and imaging applications for multivalent nanoparticle-based systems.
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Affiliation(s)
- Monica Shokeen
- Mallinckrodt Institute of Radiology, Washington Univrsity
| | - Eric D. Pressly
- Materials Research Laboratory, University of California Santa Barbara
- Materials Department, University of California Santa Barbara
| | - Aviv Hagooly
- Mallinckrodt Institute of Radiology, Washington Univrsity
| | | | - Nicholas Ramos
- Mallinckrodt Institute of Radiology, Washington Univrsity
| | | | - Michael J. Welch
- Mallinckrodt Institute of Radiology, Washington Univrsity
- Department of Biochemistry and Molecular Biophysics, Washington Univrsity
| | - Craig J. Hawker
- Materials Research Laboratory, University of California Santa Barbara
- Materials Department, University of California Santa Barbara
- Department of Chemistry and Biochemistry, University of California Santa Barbara
| | - Carolyn J. Anderson
- Mallinckrodt Institute of Radiology, Washington Univrsity
- Department of Chemistry, Washington Univrsity
- Department of Biochemistry and Molecular Biophysics, Washington Univrsity
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34
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Coady DJ, Engler AC, Yang YY, Hedrick JL. Facile routes to star polymers via an organocatalytic approach. Polym Chem 2011. [DOI: 10.1039/c1py00272d] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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35
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Uptake and permeability studies of BBB-targeting immunoliposomes using the hCMEC/D3 cell line. Eur J Pharm Biopharm 2010; 77:265-74. [PMID: 21118722 DOI: 10.1016/j.ejpb.2010.11.015] [Citation(s) in RCA: 89] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2010] [Revised: 11/19/2010] [Accepted: 11/23/2010] [Indexed: 02/03/2023]
Abstract
The targeting potential of OX-26-decorated immunoliposomes was investigated, using the human brain endothelial cell line hCMEC/D3 as a model of the blood-brain barrier (BBB). Immuno-nanoliposomes were prepared by the biotin/streptavidin ligation strategy, and their uptake by hCMEC/D3 cells and permeability through cell monolayers was studied. In order to elucidate the mechanisms of uptake, pH-sensitive fluorescence signal of HPTS was used, while transport was measured using double labeled immunoliposomes (with aqueous and lipid membrane fluorescent tags). PEGylated and non-specific-IgG-decorated liposomes were studied under identical conditions, as controls. CHO-K1 cells (which do not overexpress the transferrin receptor) were studied in some cases for comparative purposes. Experimental results reveal that hCMEC/D3 cells are good models for in vitro screening of BBB-targeting nanoparticulate drug delivery systems. Uptake and transcytosis of immunoliposome-associated dyes by cell monolayers was substantially higher compared to those of control liposomes. HPTS-entrapping OX-26-immunoliposome uptake indicated lysosomal localization and receptor-mediated mechanism. The ratio of aqueous/lipid label transport is affected by pre-incubation with antibody, or use of high lipid doses, suggesting that vesicles are transported intact after lysosome saturation. Co-decoration with a second ligand slightly decreases OX-26-decorated vesicle uptake, but not transcytosis, proving that the biotin-streptavidin technique can be applied for the generation of dual-targeting nanoliposomes.
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Mesenchymal migration as a therapeutic target in glioblastoma. JOURNAL OF ONCOLOGY 2010; 2010:430142. [PMID: 20652056 PMCID: PMC2905941 DOI: 10.1155/2010/430142] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/16/2010] [Accepted: 04/28/2010] [Indexed: 12/29/2022]
Abstract
Extensive infiltration of the surrounding healthy brain tissue is a cardinal feature of glioblastomas, highly lethal brain tumors. Deep infiltration by the glioblastoma cells renders complete surgical excision difficult and contemporary adjuvant therapies have had little impact on long-term survival. Thus, deep infiltration and resistance to irradiation and chemotherapy remain a major cause of patient mortality. Modern therapies specifically targeted to this unique aspect of glioblastoma cell biology hold significant promise to substantially improve survival rates for glioblastoma patients. In the present paper, we focus on the role of adhesion signaling molecules and the actin cytoskeleton in the mesenchymal mode of motility that characterizes invading glioblastoma cells. We then review current approaches to targeting these elements of the glioblastoma cell migration machinery and discuss other aspects of cell migration that may improve the treatment of infiltrating glioblastoma.
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