1
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Aguilar CJ, Sarwar M, Prabakar S, Zhang W, Harris PWR, Brimble MA, Kavianinia I. Harnessing the power of a photoinitiated thiol-ene "click" reaction for the efficient synthesis of S-lipidated collagen model peptide amphiphiles. Org Biomol Chem 2023; 21:9150-9158. [PMID: 37822146 DOI: 10.1039/d3ob01469j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/13/2023]
Abstract
A photoinitiated thiol-ene "click" reaction was used to synthesize S-lipidated collagen model peptide amphiphiles. Use of 2-iminothiolane provided an epimerization-free thiol handle required for thiol-ene based incorporation of lipid moieties onto collagen-based peptide sequences. This approach not only led to improvements in the triple helical characteristics of the resulting collagen model peptides but also increased the aqueous solubility of the peptide amphiphiles. As a result, this methodology holds significant potential for the design and advancement of functional peptide amphiphiles, offering enhanced capabilities across a wide range of applications.
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Affiliation(s)
- Clouie Justin Aguilar
- School of Biological Sciences, The University of Auckland, 3A Symonds Street, Auckland 1010, New Zealand.
- School of Chemical Sciences, The University of Auckland, 23 Symonds Street, Auckland 1010, New Zealand
| | - Makhdoom Sarwar
- Maurice Wilkins Centre for Molecular Biodiscovery, The University of Auckland, 3 Symonds Street, Auckland, New Zealand
- Department of Obstetrics and Gynaecology, University of Otago, Christchurch, 2 Riccarton Avenue, Christchurch 8011, New Zealand
| | - Sujay Prabakar
- Leather and Shoe Research Association of New Zealand, PO Box 8094, Hokowhitu, Palmerston North 4446, New Zealand
| | - Wenkai Zhang
- Leather and Shoe Research Association of New Zealand, PO Box 8094, Hokowhitu, Palmerston North 4446, New Zealand
| | - Paul W R Harris
- School of Biological Sciences, The University of Auckland, 3A Symonds Street, Auckland 1010, New Zealand.
- School of Chemical Sciences, The University of Auckland, 23 Symonds Street, Auckland 1010, New Zealand
- Maurice Wilkins Centre for Molecular Biodiscovery, The University of Auckland, 3 Symonds Street, Auckland, New Zealand
| | - Margaret A Brimble
- School of Biological Sciences, The University of Auckland, 3A Symonds Street, Auckland 1010, New Zealand.
- School of Chemical Sciences, The University of Auckland, 23 Symonds Street, Auckland 1010, New Zealand
- Maurice Wilkins Centre for Molecular Biodiscovery, The University of Auckland, 3 Symonds Street, Auckland, New Zealand
| | - Iman Kavianinia
- School of Biological Sciences, The University of Auckland, 3A Symonds Street, Auckland 1010, New Zealand.
- School of Chemical Sciences, The University of Auckland, 23 Symonds Street, Auckland 1010, New Zealand
- Maurice Wilkins Centre for Molecular Biodiscovery, The University of Auckland, 3 Symonds Street, Auckland, New Zealand
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2
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Qiu D, Huang Y, Chennamsetty N, Miller SA, Hay M. Characterizing and understanding the formation of cysteine conjugates and other by-products in a random, lysine-linked antibody drug conjugate. MAbs 2021; 13:1974150. [PMID: 34486490 PMCID: PMC8425761 DOI: 10.1080/19420862.2021.1974150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
This study describes the characterization of conjugation sites for a random, lysine conjugated 2-iminothiolane (2-IT) based antibody-drug-conjugate synthesized from an IgG1 antibody and a duocarmycin analog-based payload-linker. Of the 80 putative lysine sites, 78 were found to be conjugated via tryptic peptide mapping and LC-HRMS. Surprisingly, seven cysteine-linked conjugated peptides were also detected resulting from the conjugation of cysteine residues derived from the four inter-chain disulfide bonds during the reaction. This unexpected finding could be attributed to the free thiols of the 2-IT thiolated antibody intermediates and/or the 4-mercaptobutanamide by-product resulting from the hydrolysis of 2-IT. These free thiols could cause the four inter-chain disulfide bonds of the antibody to scramble via intra- or inter-molecular attack. The presence of only pair of non-reactive (unconjugated) lysine residues, along with the four intact intra-chain disulfide bonds, is attributed to their poor accessibility, which is consistent with solvent accessibility modeling analysis. We also discovered a major by-product derived from the hydrolysis of the amidine moiety of the N-terminus conjugate. In contrast, the amidine moiety in lysine-linked conjugates appeared stable. Based on our results, we propose plausible formation mechanisms of cysteine-linked conjugates and the hydrolysis of the N-terminus conjugate, which provide scientific insights that are beneficial to process development and drug quality control.
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Affiliation(s)
- Difei Qiu
- Chemical Process Development, Global Product Development and Supply, Bristol Myers Squibb Company, New Brunswick, NJ, USA
| | - Yande Huang
- Chemical Process Development, Global Product Development and Supply, Bristol Myers Squibb Company, New Brunswick, NJ, USA
| | - Naresh Chennamsetty
- Biologics Development, Global Product Development and Supply, Bristol Myers Squibb Company, New Brunswick, NJ, USA
| | - Scott A Miller
- Chemical Process Development, Global Product Development and Supply, Bristol Myers Squibb Company, New Brunswick, NJ, USA
| | - Michael Hay
- Chemical Process Development, Global Product Development and Supply, Bristol Myers Squibb Company, New Brunswick, NJ, USA
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3
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Yan S, Zhang J, Wang Y, Guo W, Zhang S, Liu Y, Cao J, Wang Y, Wang L, Ma F, Zhang P, Chen HY, Huang S. Single Molecule Ratcheting Motion of Peptides in a Mycobacterium smegmatis Porin A (MspA) Nanopore. NANO LETTERS 2021; 21:6703-6710. [PMID: 34319744 DOI: 10.1021/acs.nanolett.1c02371] [Citation(s) in RCA: 65] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Diverse functions of proteins, including synthesis, catalysis, and signaling, result from their highly variable amino acid sequences. The technology allowing for direct analysis of protein sequences, however, is still unsatisfactory. Recent developments of nanopore sequencing of DNA or RNA have motivated attempts to realize nanopore sequencing of peptides in a similar manner. The core challenge has been to achieve a controlled ratcheting motion of the target peptide, which is currently restricted to a limited choice of compatible enzymes. By constructing peptide-oligonucleotide conjugates (POCs) and measurements with nanopore-induced phase-shift sequencing (NIPSS), direct observation of the ratcheting motion of peptides has been successfully achieved. The generated events show a clear sequence dependence on the peptide that is being tested. The method is compatible with peptides with either a conjugated N- or C-terminus. The demonstrated results suggest a proof of concept of nanopore sequencing of peptide and can be useful for peptide fingerprinting.
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Affiliation(s)
- Shuanghong Yan
- State Key Laboratory of Analytical Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
- Chemistry and Biomedicine Innovation Center (ChemBIC), Nanjing University, Nanjing 210023, China
| | - Jinyue Zhang
- State Key Laboratory of Analytical Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
- Chemistry and Biomedicine Innovation Center (ChemBIC), Nanjing University, Nanjing 210023, China
| | - Yu Wang
- State Key Laboratory of Analytical Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
- Chemistry and Biomedicine Innovation Center (ChemBIC), Nanjing University, Nanjing 210023, China
| | - Weiming Guo
- State Key Laboratory of Analytical Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
- Chemistry and Biomedicine Innovation Center (ChemBIC), Nanjing University, Nanjing 210023, China
| | - Shanyu Zhang
- State Key Laboratory of Analytical Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
- Chemistry and Biomedicine Innovation Center (ChemBIC), Nanjing University, Nanjing 210023, China
| | - Yao Liu
- State Key Laboratory of Analytical Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
- Chemistry and Biomedicine Innovation Center (ChemBIC), Nanjing University, Nanjing 210023, China
| | - Jiao Cao
- State Key Laboratory of Analytical Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
- Chemistry and Biomedicine Innovation Center (ChemBIC), Nanjing University, Nanjing 210023, China
| | - Yuqin Wang
- State Key Laboratory of Analytical Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
- Chemistry and Biomedicine Innovation Center (ChemBIC), Nanjing University, Nanjing 210023, China
| | - Liying Wang
- State Key Laboratory of Analytical Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
- Chemistry and Biomedicine Innovation Center (ChemBIC), Nanjing University, Nanjing 210023, China
| | - Fubo Ma
- State Key Laboratory of Analytical Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
- Chemistry and Biomedicine Innovation Center (ChemBIC), Nanjing University, Nanjing 210023, China
| | - Panke Zhang
- State Key Laboratory of Analytical Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Hong-Yuan Chen
- State Key Laboratory of Analytical Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Shuo Huang
- State Key Laboratory of Analytical Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
- Chemistry and Biomedicine Innovation Center (ChemBIC), Nanjing University, Nanjing 210023, China
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4
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Optimisation of alendronate conjugation to polyethylene glycol for functionalisation of biopolymers and nanoparticles. Eur Polym J 2021. [DOI: 10.1016/j.eurpolymj.2021.110571] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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5
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Grosso R, de-Paz MV. Thiolated-Polymer-Based Nanoparticles as an Avant-Garde Approach for Anticancer Therapies-Reviewing Thiomers from Chitosan and Hyaluronic Acid. Pharmaceutics 2021; 13:854. [PMID: 34201403 PMCID: PMC8227107 DOI: 10.3390/pharmaceutics13060854] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 06/04/2021] [Accepted: 06/05/2021] [Indexed: 12/21/2022] Open
Abstract
Thiomers (or thiolated polymers) have broken through as avant-garde approaches in anticancer therapy. Their distinguished reactivity and properties, closely linked to their final applications, justify the extensive research conducted on their preparation and use as smart drug-delivery systems (DDSs). Multiple studies have demonstrated that thiomer-rich nanoformulations can overcome major drawbacks found when administering diverse active pharmaceutical ingredients (APIs), especially in cancer therapy. This work focuses on providing a complete and concise review of the synthetic tools available to thiolate cationic and anionic polymers, in particular chitosan (CTS) and hyaluronic acid (HA), respectively, drawing attention to the most successful procedures. Their chemical reactivity and most relevant properties regarding their use in anticancer formulations are also discussed. In addition, a variety of NP formation procedures are outlined, as well as their use in cancer therapy, particularly for taxanes and siRNA. It is expected that the current work could clarify the main synthetic strategies available, with their scope and drawbacks, as well as provide some insight into thiomer chemistry. Therefore, this review can inspire new research strategies in the development of efficient formulations for the treatment of cancer.
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Affiliation(s)
| | - M.-Violante de-Paz
- Departamento Química Orgánica y Farmacéutica, Facultad de Farmacia, Universidad de Sevilla, 41012 Sevilla, Spain;
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Massena CJ, Lathrop SK, Davison CJ, Schoener R, Bazin HG, Evans JT, Burkhart DJ. A tractable covalent linker strategy for the production of immunogenic antigen-TLR7/8L bioconjugates. Chem Commun (Camb) 2021; 57:4698-4701. [PMID: 33977971 PMCID: PMC9118693 DOI: 10.1039/d1cc00795e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
Despite the ease of production and improved safety profiles of recombinant vaccines, the inherently low immunogenicity of unadjuvanted proteins remains an impediment to their widespread adoption. The covalent tethering of TLR agonists to antigenic proteins offers a unique approach to co-deliver both constituents to the same cell-enhancing vaccine efficacy while minimizing reactogenicity. However, the paucity of simple and effective linker chemistries continues to hamper progress. Here, we present a modular, PEG-based linker system compatible with even extremely lipophilic and challenging TLR7/8 agonists. To advance the field and address previous obstacles, we offer the most straightforward and antigen-preserving linker system to date. These antigen-adjuvant conjugates enhance antigen-specific immune responses in mice, demonstrating the power of our approach within the context of modern vaccinology.
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Affiliation(s)
- C J Massena
- Dept. of Biomedical & Pharmaceutical Sciences, University of Montana, 32 Campus Dr, Missoula, MT 59812, USA.
| | - S K Lathrop
- Dept. of Biomedical & Pharmaceutical Sciences, University of Montana, 32 Campus Dr, Missoula, MT 59812, USA.
| | - C J Davison
- Dept. of Biomedical & Pharmaceutical Sciences, University of Montana, 32 Campus Dr, Missoula, MT 59812, USA.
| | - R Schoener
- Dept. of Biomedical & Pharmaceutical Sciences, University of Montana, 32 Campus Dr, Missoula, MT 59812, USA.
| | - H G Bazin
- Dept. of Biomedical & Pharmaceutical Sciences, University of Montana, 32 Campus Dr, Missoula, MT 59812, USA.
| | - J T Evans
- Dept. of Biomedical & Pharmaceutical Sciences, University of Montana, 32 Campus Dr, Missoula, MT 59812, USA.
| | - D J Burkhart
- Dept. of Biomedical & Pharmaceutical Sciences, University of Montana, 32 Campus Dr, Missoula, MT 59812, USA.
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7
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Sandeep D, AlSawaftah NM, Husseini GA. Immunoliposomes: Synthesis, Structure, and their Potential as Drug Delivery Carriers. CURRENT CANCER THERAPY REVIEWS 2020. [DOI: 10.2174/1573394716666200227095521] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Immunoliposomes have emerged as attractive drug targeting vehicles for cancer treatment.
This review presents the recent advances in the design of immunoliposomes encapsulating a
variety of chemotherapeutic agents. We provided an overview of different routes that can be used
to conjugate antibodies to the surfaces of liposomes, as well as several examples of stimuliresponsive
immunoliposome systems and their therapeutic potential for cancer treatment.
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Affiliation(s)
- Divya Sandeep
- Department of Chemical Engineering, American University of Sharjah, Sharjah, United Arab Emirates
| | - Nour M. AlSawaftah
- Department of Chemical Engineering, American University of Sharjah, Sharjah, United Arab Emirates
| | - Ghaleb A. Husseini
- Department of Chemical Engineering, American University of Sharjah, Sharjah, United Arab Emirates
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8
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Gahoual R, Bolbach G, Ould-Melha I, Clodic G, François YN, Scherman D, Mignet N, Houzé P. Kinetic and structural characterization of therapeutic albumin chemical functionalization using complementary mass spectrometry techniques. J Pharm Biomed Anal 2020; 185:113242. [DOI: 10.1016/j.jpba.2020.113242] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Revised: 03/03/2020] [Accepted: 03/05/2020] [Indexed: 01/06/2023]
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9
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Laomeephol C, Ferreira H, Yodmuang S, Reis RL, Damrongsakkul S, Neves NM. Exploring the Gelation Mechanisms and Cytocompatibility of Gold (III)-Mediated Regenerated and Thiolated Silk Fibroin Hydrogels. Biomolecules 2020; 10:E466. [PMID: 32197484 PMCID: PMC7175244 DOI: 10.3390/biom10030466] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2020] [Revised: 03/11/2020] [Accepted: 03/16/2020] [Indexed: 12/20/2022] Open
Abstract
Accelerating the gelation of silk fibroin (SF) solution from several days or weeks to minutes or few hours is critical for several applications (e.g., cell encapsulation, bio-ink for 3D printing, and injectable controlled release). In this study, the rapid gelation of SF induced by a gold salt (Au3+) as well as the cytocompatibility of Au3+-mediated SF hydrogels are reported. The gelation behaviors and mechanisms of regenerated SF and thiolated SF (tSF) were compared. Hydrogels can be obtained immediately after mixing or within three days depending on the types of silk proteins used and amount of Au3+. Au3+-mediated SF and tSF hydrogels showed different color appearances. The color of Au-SF hydrogels was purple-red, whereas the Au-tSF hydrogels maintained their initial solution color, indicating different gelation mechanisms. The reduction of Au3+ by amino groups and further reduction to Au by tyrosine present in SF, resulting in a dityrosine bonding and Au nanoparticles (NPs) production, are proposed as underlying mechanisms of Au-SF gel formation. Thiol groups of the tSF reduced Au3+ to Au+ and formed a disulfide bond, before a formation of Au+-S bonds. Protons generated during the reactions between Au3+ and SF or tSF led to a decrease of the local pH, which affected the chain aggregation of the SF, and induced the conformational transition of SF protein to beta sheet. The cytocompatibility of the Au-SF and tSF hydrogels was demonstrated by culturing with a L929 cell line, indicating that the developed hydrogels can be promising 3D matrices for different biomedical applications.
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Affiliation(s)
- Chavee Laomeephol
- Biomedical Engineering Research Center, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand; (C.L.); (S.Y.)
- Biomaterial Engineering for Medical and Health Research Unit, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand
| | - Helena Ferreira
- 3B’s Research Group, I3Bs-Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark-Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal; (H.F.); (R.L.R.)
- ICVS/3B’s-PT Government Associate Laboratory, 4806-909 Braga/Guimarães, Portugal
| | - Supansa Yodmuang
- Biomedical Engineering Research Center, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand; (C.L.); (S.Y.)
- Biomaterial Engineering for Medical and Health Research Unit, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand
- Research Affairs, Faculty of Medicine, Chulalongkorn University, Bangkok 10330, Thailand
| | - Rui L. Reis
- 3B’s Research Group, I3Bs-Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark-Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal; (H.F.); (R.L.R.)
- ICVS/3B’s-PT Government Associate Laboratory, 4806-909 Braga/Guimarães, Portugal
- The Discoveries Centre for Regenerative and Precision Medicine, Headquarters at University of Minho, Avepark, 4805-017 Barco, Guimarães, Portugal
| | - Siriporn Damrongsakkul
- Biomedical Engineering Research Center, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand; (C.L.); (S.Y.)
- Biomaterial Engineering for Medical and Health Research Unit, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand
- Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand
| | - Nuno M. Neves
- 3B’s Research Group, I3Bs-Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark-Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal; (H.F.); (R.L.R.)
- ICVS/3B’s-PT Government Associate Laboratory, 4806-909 Braga/Guimarães, Portugal
- The Discoveries Centre for Regenerative and Precision Medicine, Headquarters at University of Minho, Avepark, 4805-017 Barco, Guimarães, Portugal
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10
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Cao Y, Lee BH, Irvine SA, Wong YS, Bianco Peled H, Venkatraman S. Inclusion of Cross-Linked Elastin in Gelatin/PEG Hydrogels Favourably Influences Fibroblast Phenotype. Polymers (Basel) 2020; 12:polym12030670. [PMID: 32192137 PMCID: PMC7183321 DOI: 10.3390/polym12030670] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Revised: 03/11/2020] [Accepted: 03/13/2020] [Indexed: 12/16/2022] Open
Abstract
The capacity of a biomaterial to innately modulate cell behavior while meeting the mechanical property requirements of the implant is a much sought-after goal within bioengineering. Here we covalently incorporate soluble elastin into a gelatin–poly (ethylene glycol) (PEG) hydrogel for three-dimensional (3D) cell encapsulation to achieve these properties. The inclusion of elastin into a previously optimized gelatin–PEG hydrogel was then evaluated for effects on entrapped fibroblasts, with the aim to assess the hydrogel as an extracellular matrix (ECM)-mimicking 3D microenvironment for cellular guidance. Soluble elastin was incorporated both physically and covalently into novel gelatin/elastin hybrid PEG hydrogels with the aim to harness the cellular interactivity and mechanical tunability of both elastin and gelatin. This design allowed us to assess the benefits of elastin-containing hydrogels in guiding fibroblast activity for evaluation as a potential dermal replacement. It was found that a gelatin–PEG hydrogel with covalently conjugated elastin, supported neonatal fibroblast viability, promoted their proliferation from 7.3% to 13.5% and guided their behavior. The expression of collagen alpha-1(COL1A1) and elastin in gelatin/elastin hybrid gels increased 16-fold and 6-fold compared to control sample at day 9, respectively. Moreover, cells can be loaded into the hydrogel precursor solution, deposited, and the matrix cross-linked without affecting the incorporated cells adversely, thus enabling a potential injectable system for dermal wound healing.
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Affiliation(s)
- Ye Cao
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore; (Y.C.); (B.H.L.); (S.A.I.); (Y.S.W.)
- The Inter-Departmental Program for Biotechnology, Technion-Israel Institute of Technology, Haifa 32000, Israel
| | - Bae Hoon Lee
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore; (Y.C.); (B.H.L.); (S.A.I.); (Y.S.W.)
| | - Scott Alexander Irvine
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore; (Y.C.); (B.H.L.); (S.A.I.); (Y.S.W.)
| | - Yee Shan Wong
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore; (Y.C.); (B.H.L.); (S.A.I.); (Y.S.W.)
| | - Havazelet Bianco Peled
- Department of Chemical Engineering, Technion-Israel Institute of Technology, Haifa 32000, Israel
- Correspondence: (H.B.P.); (S.V.)
| | - Subramanian Venkatraman
- Subramanian Venkatraman, Materials Science and Engineering, National University of Singapore, Singapore 119077, Singapore
- Correspondence: (H.B.P.); (S.V.)
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11
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Rees K, Tran MV, Massey M, Kim H, Krause KD, Algar WR. Dextran-Functionalized Semiconductor Quantum Dot Bioconjugates for Bioanalysis and Imaging. Bioconjug Chem 2020; 31:861-874. [DOI: 10.1021/acs.bioconjchem.0c00019] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Kelly Rees
- University of British Columbia, Department of Chemistry, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
| | - Michael V. Tran
- University of British Columbia, Department of Chemistry, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
| | - Melissa Massey
- University of British Columbia, Department of Chemistry, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
| | - Hyungki Kim
- University of British Columbia, Department of Chemistry, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
| | - Katherine D. Krause
- University of British Columbia, Department of Chemistry, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
| | - W. Russ Algar
- University of British Columbia, Department of Chemistry, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
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12
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Lucío MI, Opri R, Pinto M, Scarsi A, Fierro JLG, Meneghetti M, Fracasso G, Prato M, Vázquez E, Herrero MA. Targeted killing of prostate cancer cells using antibody-drug conjugated carbon nanohorns. J Mater Chem B 2017; 5:8821-8832. [PMID: 32264275 DOI: 10.1039/c7tb02464a] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The ability of carbon nanohorns (CNHs) to cross biological barriers makes them potential carriers for delivery purposes. In this work, we report the design of a new selective antibody-drug nanosystem based on CNHs for the treatment of prostate cancer (PCa). In particular, cisplatin in a prodrug form and the monoclonal antibody (Ab) D2B, selective for PSMA+ cancer cells, have been attached to CNHs due to the current application of this antigen in PCa therapy. The hybrids Ab-CNHs, cisplatin-CNHs and functionalised-CNHs have also been synthesized to be used as control systems. The efficacy and specificity of the D2B-cisplatin-CNH conjugate to selectively target and kill PSMA+ prostate cancer cells have been demonstrated in comparison with other derivatives. The developed strategy to functionalise CNHs is fascinating because it can allow the fine tuning of both drug and Ab molecules attached to the nanostructure in order to modulate the activity of the nanosystem. Finally, the herein described methodology can be used for the incorporation of almost any drugs or Abs in the platforms in order to create new targeted drugs for the treatment of different diseases.
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Affiliation(s)
- María Isabel Lucío
- Departamento de Química Orgánica, Inorgánica y Bioquímica, Facultad de Ciencias y Tecnologías Químicas, Universidad de Castilla-La Mancha, Campus Universitario, 13071 Ciudad Real, Spain.
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13
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Ewe A, Panchal O, Pinnapireddy SR, Bakowsky U, Przybylski S, Temme A, Aigner A. Liposome-polyethylenimine complexes (DPPC-PEI lipopolyplexes) for therapeutic siRNA delivery in vivo. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2017; 13:209-218. [DOI: 10.1016/j.nano.2016.08.005] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2016] [Revised: 07/25/2016] [Accepted: 08/04/2016] [Indexed: 02/04/2023]
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14
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Cao Y, Lee BH, Peled HB, Venkatraman SS. Synthesis of stiffness-tunable and cell-responsive Gelatin-poly(ethylene glycol) hydrogel for three-dimensional cell encapsulation. J Biomed Mater Res A 2016; 104:2401-11. [DOI: 10.1002/jbm.a.35779] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2015] [Revised: 04/29/2016] [Accepted: 05/09/2016] [Indexed: 01/05/2023]
Affiliation(s)
- Ye Cao
- School of Materials Science and Engineering; Nanyang Technological University; Singapore Singapore
- The Inter-Departmental Program for Biotechnology; Department of Biotechnology and Food Engineering, Technion-Israel Institute of Technology; Haifa Israel
| | - Bae Hoon Lee
- School of Materials Science and Engineering; Nanyang Technological University; Singapore Singapore
| | - Havazelet Bianco Peled
- Department of Chemical Engineering; Technion- Israel Institute of Technology; Haifa Israel
| | - Subbu S. Venkatraman
- School of Materials Science and Engineering; Nanyang Technological University; Singapore Singapore
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15
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Hennig R, Pollinger K, Tessmar J, Goepferich A. Multivalent targeting of AT1 receptors with angiotensin II-functionalized nanoparticles. J Drug Target 2015; 23:681-9. [PMID: 25950599 DOI: 10.3109/1061186x.2015.1035276] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The angiotensin II receptor type 1 (AT1R) is a G protein-coupled receptor of paramount significance since it is overexpressed in a number of diseased tissues that are highly attractive for nanoparticle targeting. However, it is also expressed at physiological levels in healthy tissue. Multivalent interactions mediated by multiple AT1R-binding moieties per nanoparticle could promote a high binding avidity to AT1R overexpressing cells and concomitantly spare off-target tissue. To investigate the feasibility of this approach, angiotensin II was thiolated and conjugated to PEGylated quantum dots. Nanoparticle binding, uptake and affinity to several cell lines was investigated in detail. The colloids were rapidly taken up by clathrin-mediated endocytosis into AT1R-expressing cells and showed no interaction with receptor negative cells. The EC50 of the thiolated angiotensin II was determined to be 261 nM, whereas the ligand-conjugated Qdots activated the receptor with an EC50 of 8.9 nM. This 30-fold higher affinity of the nanoparticles compared to the unconjugated peptide clearly demonstrated the presence of multivalent effects when using agonist-targeted nanoparticles. Our study provides compelling evidence that, despite being immediately endocytosed, Ang II-coupled nanoparticles exert potent multivalent ligand-receptor interactions that can be used to establish high affinities to an AT1R overexpressing cell and tissue.
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Affiliation(s)
- Robert Hennig
- a Department of Pharmaceutical Technology , University of Regensburg , Regensburg , Germany and
| | - Klaus Pollinger
- a Department of Pharmaceutical Technology , University of Regensburg , Regensburg , Germany and
| | - Joerg Tessmar
- b Department for Functional Materials in Medicine and Dentistry , University Hospital of Wuerzburg , Wuerzburg , Germany
| | - Achim Goepferich
- a Department of Pharmaceutical Technology , University of Regensburg , Regensburg , Germany and
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16
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Talelli M, Barz M, Rijcken CJ, Kiessling F, Hennink WE, Lammers T. Core-Crosslinked Polymeric Micelles: Principles, Preparation, Biomedical Applications and Clinical Translation. NANO TODAY 2015; 10:93-117. [PMID: 25893004 PMCID: PMC4398985 DOI: 10.1016/j.nantod.2015.01.005] [Citation(s) in RCA: 340] [Impact Index Per Article: 37.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Polymeric micelles (PM) are extensively used to improve the delivery of hydrophobic drugs. Many different PM have been designed and evaluated over the years, and some of them have steadily progressed through clinical trials. Increasing evidence suggests, however, that for prolonged circulation times and for efficient EPR-mediated drug targeting to tumors and to sites of inflammation, PM need to be stabilized, to prevent premature disintegration. Core-crosslinking is among the most popular methods to improve the in vivo stability of PM, and a number of core-crosslinked polymeric micelles (CCPM) have demonstrated promising efficacy in animal models. The latter is particularly true for CCPM in which (pro-) drugs are covalently entrapped. This ensures proper drug retention in the micelles during systemic circulation, efficient drug delivery to pathological sites via EPR, and tailorable drug release kinetics at the target site. We here summarize recent advances in the CCPM field, addressing the chemistry involved in preparing them, their in vitro and in vivo performance, potential biomedical applications, and guidelines for efficient clinical translation.
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Affiliation(s)
- Marina Talelli
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, The Netherlands
- Department of Immunology and Oncology and NanoBiomedicine Initiative, Centro Nacional de Biotecnología (CNB)/CSIC, Darwin 3, Cantoblanco, 28049 Madrid, Spain
| | - Matthias Barz
- Institute of Organic Chemistry, Johannes Gutenberg-University Mainz, Duesbergweg 10-14, 55128 Mainz, Germany
| | | | - Fabian Kiessling
- Department of Nanomedicine and Theranostics, Institute for Experimental Molecular Imaging, University Clinic and Helmholtz Institute for Biomedical Engineering, RWTH Aachen University, Aachen, Germany
| | - Wim E. Hennink
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, The Netherlands
| | - Twan Lammers
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, The Netherlands
- Department of Nanomedicine and Theranostics, Institute for Experimental Molecular Imaging, University Clinic and Helmholtz Institute for Biomedical Engineering, RWTH Aachen University, Aachen, Germany
- Department of Controlled Drug Delivery, University of Twente and MIRA Institute for Biomedical Technology and Technical Medicine, Enschede, The Netherlands
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17
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Maeda H, Hirata K, Watanabe H, Ishima Y, Chuang VTG, Taguchi K, Inatsu A, Kinoshita M, Tanaka M, Sasaki Y, Otagiri M, Maruyama T. Polythiol-containing, recombinant mannosylated-albumin is a superior CD68+/CD206+ Kupffer cell-targeted nanoantioxidant for treatment of two acute hepatitis models. J Pharmacol Exp Ther 2014; 352:244-57. [PMID: 25398242 DOI: 10.1124/jpet.114.219493] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Since reactive oxygen species (ROS) derived from Kupffer cells (KC), especially CD68(+) KC, play a key role in the induction of hepatic oxidative stress and injuries, we developed a polythiolated- and mannosylated human serum albumin (SH-Man-HSA), which functions as a novel nanoantioxidant for delivering thiol to CD68(+) KC. In vitro electron paramagnetic resonance coupled with pharmacokinetics and immunohistochemical studies showed that SH-Man-HSA possessed powerful radical-scavenging activity and rapidly and selectively delivered thiols to the liver via mannose receptor (CD206) on CD68(+) cells. SH-Man-HSA significantly improved the survival rate of concanavalin-A (Con-A)-treated mice. Moreover, SH-Man-HSA exhibited excellent hepatoprotective functions, not by decreasing tumor necrosis factor or interferon-γ production that is closely associated with Con-A-induced hepatitis, but by suppressing ROS production. Interestingly, the protective effect of SH-Man-HSA was superior to N-acetyl cysteine (NAC). This could be attributed to the difference in the inhibition of hepatic oxidative stress between the two antioxidants depending on their potential for thiol delivery to the liver. Similar results were also observed for acetaminophen (APAP)-induced hepatopathy models. Flow cytometric data further confirmed that an increase in F4/80(+)/ROS(+) cells was dramatically decreased by SH-Man-HSA. The administration of SH-Man-HSA at 4 hours following a Con-A or APAP injection also exhibited a profound hepatoprotective action against these hepatitis models, whereas this was not observed for NAC. It can be concluded therefore that SH-Man-HSA has great potential for use in a rescue therapy for hepatopathy as a nanoantioxidant because of its ability to efficiently and rapidly deliver thiols to CD68(+)/CD206(+) KC.
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Affiliation(s)
- Hitoshi Maeda
- Department of Biopharmaceutics, Graduate School of Pharmaceutical Sciences (H.M., K.H., H.W., Y.I., V.T.G.C., T.M.), Center for Clinical Pharmaceutical Sciences, School of Pharmacy (H.W., Y.I., T.M.), and Department of Gastroenterology and Hepatology, Graduate School of Medical Sciences (M.T., Y.S.), Kumamoto University, Kumamoto, Japan; School of Pharmacy, Faculty of Health Sciences, Curtin Health Innovation Research Institute, Curtin University, Perth, Western Australia, Australia (V.T.G.C.); Faculty of Pharmaceutical Sciences (K.T., M.O.) and DDS Research Institute (M.O.), Sojo University, Kumamoto, Japan; and Department of Immunology and Microbiology, National Defense Medical College, Saitama, Japan (A.I., M.K.)
| | - Kenshiro Hirata
- Department of Biopharmaceutics, Graduate School of Pharmaceutical Sciences (H.M., K.H., H.W., Y.I., V.T.G.C., T.M.), Center for Clinical Pharmaceutical Sciences, School of Pharmacy (H.W., Y.I., T.M.), and Department of Gastroenterology and Hepatology, Graduate School of Medical Sciences (M.T., Y.S.), Kumamoto University, Kumamoto, Japan; School of Pharmacy, Faculty of Health Sciences, Curtin Health Innovation Research Institute, Curtin University, Perth, Western Australia, Australia (V.T.G.C.); Faculty of Pharmaceutical Sciences (K.T., M.O.) and DDS Research Institute (M.O.), Sojo University, Kumamoto, Japan; and Department of Immunology and Microbiology, National Defense Medical College, Saitama, Japan (A.I., M.K.)
| | - Hiroshi Watanabe
- Department of Biopharmaceutics, Graduate School of Pharmaceutical Sciences (H.M., K.H., H.W., Y.I., V.T.G.C., T.M.), Center for Clinical Pharmaceutical Sciences, School of Pharmacy (H.W., Y.I., T.M.), and Department of Gastroenterology and Hepatology, Graduate School of Medical Sciences (M.T., Y.S.), Kumamoto University, Kumamoto, Japan; School of Pharmacy, Faculty of Health Sciences, Curtin Health Innovation Research Institute, Curtin University, Perth, Western Australia, Australia (V.T.G.C.); Faculty of Pharmaceutical Sciences (K.T., M.O.) and DDS Research Institute (M.O.), Sojo University, Kumamoto, Japan; and Department of Immunology and Microbiology, National Defense Medical College, Saitama, Japan (A.I., M.K.)
| | - Yu Ishima
- Department of Biopharmaceutics, Graduate School of Pharmaceutical Sciences (H.M., K.H., H.W., Y.I., V.T.G.C., T.M.), Center for Clinical Pharmaceutical Sciences, School of Pharmacy (H.W., Y.I., T.M.), and Department of Gastroenterology and Hepatology, Graduate School of Medical Sciences (M.T., Y.S.), Kumamoto University, Kumamoto, Japan; School of Pharmacy, Faculty of Health Sciences, Curtin Health Innovation Research Institute, Curtin University, Perth, Western Australia, Australia (V.T.G.C.); Faculty of Pharmaceutical Sciences (K.T., M.O.) and DDS Research Institute (M.O.), Sojo University, Kumamoto, Japan; and Department of Immunology and Microbiology, National Defense Medical College, Saitama, Japan (A.I., M.K.)
| | - Victor Tuan Giam Chuang
- Department of Biopharmaceutics, Graduate School of Pharmaceutical Sciences (H.M., K.H., H.W., Y.I., V.T.G.C., T.M.), Center for Clinical Pharmaceutical Sciences, School of Pharmacy (H.W., Y.I., T.M.), and Department of Gastroenterology and Hepatology, Graduate School of Medical Sciences (M.T., Y.S.), Kumamoto University, Kumamoto, Japan; School of Pharmacy, Faculty of Health Sciences, Curtin Health Innovation Research Institute, Curtin University, Perth, Western Australia, Australia (V.T.G.C.); Faculty of Pharmaceutical Sciences (K.T., M.O.) and DDS Research Institute (M.O.), Sojo University, Kumamoto, Japan; and Department of Immunology and Microbiology, National Defense Medical College, Saitama, Japan (A.I., M.K.)
| | - Kazuaki Taguchi
- Department of Biopharmaceutics, Graduate School of Pharmaceutical Sciences (H.M., K.H., H.W., Y.I., V.T.G.C., T.M.), Center for Clinical Pharmaceutical Sciences, School of Pharmacy (H.W., Y.I., T.M.), and Department of Gastroenterology and Hepatology, Graduate School of Medical Sciences (M.T., Y.S.), Kumamoto University, Kumamoto, Japan; School of Pharmacy, Faculty of Health Sciences, Curtin Health Innovation Research Institute, Curtin University, Perth, Western Australia, Australia (V.T.G.C.); Faculty of Pharmaceutical Sciences (K.T., M.O.) and DDS Research Institute (M.O.), Sojo University, Kumamoto, Japan; and Department of Immunology and Microbiology, National Defense Medical College, Saitama, Japan (A.I., M.K.)
| | - Akihito Inatsu
- Department of Biopharmaceutics, Graduate School of Pharmaceutical Sciences (H.M., K.H., H.W., Y.I., V.T.G.C., T.M.), Center for Clinical Pharmaceutical Sciences, School of Pharmacy (H.W., Y.I., T.M.), and Department of Gastroenterology and Hepatology, Graduate School of Medical Sciences (M.T., Y.S.), Kumamoto University, Kumamoto, Japan; School of Pharmacy, Faculty of Health Sciences, Curtin Health Innovation Research Institute, Curtin University, Perth, Western Australia, Australia (V.T.G.C.); Faculty of Pharmaceutical Sciences (K.T., M.O.) and DDS Research Institute (M.O.), Sojo University, Kumamoto, Japan; and Department of Immunology and Microbiology, National Defense Medical College, Saitama, Japan (A.I., M.K.)
| | - Manabu Kinoshita
- Department of Biopharmaceutics, Graduate School of Pharmaceutical Sciences (H.M., K.H., H.W., Y.I., V.T.G.C., T.M.), Center for Clinical Pharmaceutical Sciences, School of Pharmacy (H.W., Y.I., T.M.), and Department of Gastroenterology and Hepatology, Graduate School of Medical Sciences (M.T., Y.S.), Kumamoto University, Kumamoto, Japan; School of Pharmacy, Faculty of Health Sciences, Curtin Health Innovation Research Institute, Curtin University, Perth, Western Australia, Australia (V.T.G.C.); Faculty of Pharmaceutical Sciences (K.T., M.O.) and DDS Research Institute (M.O.), Sojo University, Kumamoto, Japan; and Department of Immunology and Microbiology, National Defense Medical College, Saitama, Japan (A.I., M.K.)
| | - Motohiko Tanaka
- Department of Biopharmaceutics, Graduate School of Pharmaceutical Sciences (H.M., K.H., H.W., Y.I., V.T.G.C., T.M.), Center for Clinical Pharmaceutical Sciences, School of Pharmacy (H.W., Y.I., T.M.), and Department of Gastroenterology and Hepatology, Graduate School of Medical Sciences (M.T., Y.S.), Kumamoto University, Kumamoto, Japan; School of Pharmacy, Faculty of Health Sciences, Curtin Health Innovation Research Institute, Curtin University, Perth, Western Australia, Australia (V.T.G.C.); Faculty of Pharmaceutical Sciences (K.T., M.O.) and DDS Research Institute (M.O.), Sojo University, Kumamoto, Japan; and Department of Immunology and Microbiology, National Defense Medical College, Saitama, Japan (A.I., M.K.)
| | - Yutaka Sasaki
- Department of Biopharmaceutics, Graduate School of Pharmaceutical Sciences (H.M., K.H., H.W., Y.I., V.T.G.C., T.M.), Center for Clinical Pharmaceutical Sciences, School of Pharmacy (H.W., Y.I., T.M.), and Department of Gastroenterology and Hepatology, Graduate School of Medical Sciences (M.T., Y.S.), Kumamoto University, Kumamoto, Japan; School of Pharmacy, Faculty of Health Sciences, Curtin Health Innovation Research Institute, Curtin University, Perth, Western Australia, Australia (V.T.G.C.); Faculty of Pharmaceutical Sciences (K.T., M.O.) and DDS Research Institute (M.O.), Sojo University, Kumamoto, Japan; and Department of Immunology and Microbiology, National Defense Medical College, Saitama, Japan (A.I., M.K.)
| | - Masaki Otagiri
- Department of Biopharmaceutics, Graduate School of Pharmaceutical Sciences (H.M., K.H., H.W., Y.I., V.T.G.C., T.M.), Center for Clinical Pharmaceutical Sciences, School of Pharmacy (H.W., Y.I., T.M.), and Department of Gastroenterology and Hepatology, Graduate School of Medical Sciences (M.T., Y.S.), Kumamoto University, Kumamoto, Japan; School of Pharmacy, Faculty of Health Sciences, Curtin Health Innovation Research Institute, Curtin University, Perth, Western Australia, Australia (V.T.G.C.); Faculty of Pharmaceutical Sciences (K.T., M.O.) and DDS Research Institute (M.O.), Sojo University, Kumamoto, Japan; and Department of Immunology and Microbiology, National Defense Medical College, Saitama, Japan (A.I., M.K.)
| | - Toru Maruyama
- Department of Biopharmaceutics, Graduate School of Pharmaceutical Sciences (H.M., K.H., H.W., Y.I., V.T.G.C., T.M.), Center for Clinical Pharmaceutical Sciences, School of Pharmacy (H.W., Y.I., T.M.), and Department of Gastroenterology and Hepatology, Graduate School of Medical Sciences (M.T., Y.S.), Kumamoto University, Kumamoto, Japan; School of Pharmacy, Faculty of Health Sciences, Curtin Health Innovation Research Institute, Curtin University, Perth, Western Australia, Australia (V.T.G.C.); Faculty of Pharmaceutical Sciences (K.T., M.O.) and DDS Research Institute (M.O.), Sojo University, Kumamoto, Japan; and Department of Immunology and Microbiology, National Defense Medical College, Saitama, Japan (A.I., M.K.)
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18
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Raman and infrared spectra, crystal structure and DFT calculations of novel N-benzyl-4-(3-benzylcarbamoyl-propyldisulfanyl)-butyramide: [C6H5CH2NHC(O)(CH2)4S]2. RESEARCH ON CHEMICAL INTERMEDIATES 2014. [DOI: 10.1007/s11164-014-1566-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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19
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Li B, Zheng YB, Li DD, Zhen YS. Preparation and evaluation of a CD13/APN-targeting and hydrolase-resistant conjugate that comprises pingyangmycin and NGR motif-integrated apoprotein. J Pharm Sci 2014; 103:1204-13. [PMID: 24504597 DOI: 10.1002/jps.23893] [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: 09/30/2013] [Revised: 12/31/2013] [Accepted: 01/17/2014] [Indexed: 11/10/2022]
Abstract
We have chemically synthesized NGR-LDP-PYM, a novel CD13/aminopeptidase (APN)-targeting and hydrolase-resistant conjugate by cross-linking of the antitumor antibiotic pingyangmycin (bleomycin A5 , PYM) to an engineered NGR motif-integrated apoprotein (NGR-LDP) with a noncleavable linker. This protein-drug conjugate not only basically retains the original properties of PYM but also can specifically deliver PYM to the CD13/APN-expressing tumor cells. Furthermore, the resulting conjugate exhibits more resistance to hydrolysis of recombinant human bleomycin hydrolase than parental PYM. These results may be useful for improving the therapeutic efficacy of PYM and have implications in the treatment of PYM-refractory and CD13/APN-overexpressing tumors.
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Affiliation(s)
- Bin Li
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China
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20
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Bertrand N, Wu J, Xu X, Kamaly N, Farokhzad OC. Cancer nanotechnology: the impact of passive and active targeting in the era of modern cancer biology. Adv Drug Deliv Rev 2014; 66:2-25. [PMID: 24270007 PMCID: PMC4219254 DOI: 10.1016/j.addr.2013.11.009] [Citation(s) in RCA: 1842] [Impact Index Per Article: 184.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2013] [Revised: 10/23/2013] [Accepted: 11/13/2013] [Indexed: 12/17/2022]
Abstract
Cancer nanotherapeutics are progressing at a steady rate; research and development in the field has experienced an exponential growth since early 2000's. The path to the commercialization of oncology drugs is long and carries significant risk; however, there is considerable excitement that nanoparticle technologies may contribute to the success of cancer drug development. The pace at which pharmaceutical companies have formed partnerships to use proprietary nanoparticle technologies has considerably accelerated. It is now recognized that by enhancing the efficacy and/or tolerability of new drug candidates, nanotechnology can meaningfully contribute to create differentiated products and improve clinical outcome. This review describes the lessons learned since the commercialization of the first-generation nanomedicines including DOXIL® and Abraxane®. It explores our current understanding of targeted and non-targeted nanoparticles that are under various stages of development, including BIND-014 and MM-398. It highlights the opportunities and challenges faced by nanomedicines in contemporary oncology, where personalized medicine is increasingly the mainstay of cancer therapy. We revisit the fundamental concepts of enhanced permeability and retention effect (EPR) and explore the mechanisms proposed to enhance preferential "retention" in the tumor, whether using active targeting of nanoparticles, binding of drugs to their tumoral targets or the presence of tumor associated macrophages. The overall objective of this review is to enhance our understanding in the design and development of therapeutic nanoparticles for treatment of cancers.
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Affiliation(s)
- Nicolas Bertrand
- The David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Jun Wu
- Laboratory of Nanomedicine and Biomaterials, Department of Anesthesiology, Brigham and Women's Hospital, Harvard Medical School, 75 Francis St., Boston, MA 02115, USA
| | - Xiaoyang Xu
- The David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA; Laboratory of Nanomedicine and Biomaterials, Department of Anesthesiology, Brigham and Women's Hospital, Harvard Medical School, 75 Francis St., Boston, MA 02115, USA
| | - Nazila Kamaly
- Laboratory of Nanomedicine and Biomaterials, Department of Anesthesiology, Brigham and Women's Hospital, Harvard Medical School, 75 Francis St., Boston, MA 02115, USA
| | - Omid C Farokhzad
- Laboratory of Nanomedicine and Biomaterials, Department of Anesthesiology, Brigham and Women's Hospital, Harvard Medical School, 75 Francis St., Boston, MA 02115, USA.
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21
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Nguyen SN, Bobst CE, Kaltashov IA. Mass spectrometry-guided optimization and characterization of a biologically active transferrin-lysozyme model drug conjugate. Mol Pharm 2013; 10:1998-2007. [PMID: 23534953 DOI: 10.1021/mp400026y] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Transferrin is a promising drug carrier that has the potential to deliver metals, small organic molecules and therapeutic proteins to cancer cells and/or across physiological barriers (such as the blood-brain barrier). Despite this promise, very few transferrin-based therapeutics have been developed and reached clinical trials. This modest success record can be explained by the complexity and heterogeneity of protein conjugation products, which also pose great challenges to their analytical characterization. In this work, we use lysozyme conjugated to transferrin as a model therapeutic that targets the central nervous system (where its bacteriostatic properties may be exploited to control infection) and develop analytical protocols based on electrospray ionization mass spectrometry to characterize its structure and interactions with therapeutic targets and physiological partners critical for its successful delivery. Mass spectrometry has already become an indispensable tool facilitating all stages of the protein drug development process, and this work demonstrates the enormous potential of this technique in facilitating the development of a range of therapeutically effective protein-drug conjugates.
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Affiliation(s)
- Son N Nguyen
- Department of Chemistry, University of Massachusetts Amherst, Amherst, Massachusetts 01003, United States
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22
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Christie RJ, Matsumoto Y, Miyata K, Nomoto T, Fukushima S, Osada K, Halnaut J, Pittella F, Kim HJ, Nishiyama N, Kataoka K. Targeted polymeric micelles for siRNA treatment of experimental cancer by intravenous injection. ACS NANO 2012; 6:5174-5189. [PMID: 22575090 DOI: 10.1021/nn300942b] [Citation(s) in RCA: 137] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Small interfering ribonucleic acid (siRNA) cancer therapies administered by intravenous injection require a delivery system for transport from the bloodstream into the cytoplasm of diseased cells to perform the function of gene silencing. Here we describe nanosized polymeric micelles that deliver siRNA to solid tumors and elicit a therapeutic effect. Stable multifunctional micelle structures on the order of 45 nm in size formed by spontaneous self-assembly of block copolymers with siRNA. Block copolymers used for micelle formation were designed and synthesized to contain three main features: a siRNA binding segment containing thiols, a hydrophilic nonbinding segment, and a cell-surface binding peptide. Specifically, poly(ethylene glycol)-block-poly(L-lysine) (PEG-b-PLL) comprising lysine amines modified with 2-iminothiolane (2IT) and the cyclo-Arg-Gly-Asp (cRGD) peptide on the PEG terminus was used. Modification of PEG-b-PLL with 2IT led to improved control of micelle formation and also increased stability in the blood compartment, while installation of the cRGD peptide improved biological activity. Incorporation of siRNA into stable micelle structures containing the cRGD peptide resulted in increased gene silencing ability, improved cell uptake, and broader subcellular distribution in vitro and also improved accumulation in both the tumor mass and tumor-associated blood vessels following intravenous injection into mice. Furthermore, stable and targeted micelles inhibited the growth of subcutaneous HeLa tumor models and demonstrated gene silencing in the tumor mass following treatment with antiangiogenic siRNAs. This new micellar nanomedicine could potentially expand the utility of siRNA-based therapies for cancer treatments that require intravenous injection.
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Affiliation(s)
- R James Christie
- Division of Clinical Biotechnology, Center for Disease Biology and Integrative Medicine, Graduate School of Medicine, The University of Tokyo, Japan
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23
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Santos H, Bimbo L, Das Neves J, Sarmento B, INEB. Nanoparticulate targeted drug delivery using peptides and proteins. Nanomedicine (Lond) 2012. [DOI: 10.1533/9780857096449.2.236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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24
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Christie RJ, Miyata K, Matsumoto Y, Nomoto T, Menasco D, Lai TC, Pennisi M, Osada K, Fukushima S, Nishiyama N, Yamasaki Y, Kataoka K. Effect of Polymer Structure on Micelles Formed between siRNA and Cationic Block Copolymer Comprising Thiols and Amidines. Biomacromolecules 2011; 12:3174-85. [DOI: 10.1021/bm2006714] [Citation(s) in RCA: 80] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- R. James Christie
- Department of Materials Engineering, Graduate School of Engineering, The University of Tokyo, Japan
| | - Kanjiro Miyata
- Division of Clinical Biotechnology, Center for Disease Biology and Integrative Medicine, Graduate School of Medicine, The University of Tokyo, Japan
- Center for NanoBio Integration, The University of Tokyo, Japan
- Department of Bioengineering, Graduate School of Engineering, The University of Tokyo, Japan
| | - Yu Matsumoto
- Division of Clinical Biotechnology, Center for Disease Biology and Integrative Medicine, Graduate School of Medicine, The University of Tokyo, Japan
- Department of Otorhinolaryngology and Head and Neck Surgery, Graduate School of Medicine and Faculty of Medicine, The University of Tokyo, Japan
- Department of Otorhinolaryngology and Head and Neck Surgery, Mitsui Memorial Hospital, Japan
| | - Takahiro Nomoto
- Department of Bioengineering, Graduate School of Engineering, The University of Tokyo, Japan
| | - Daniel Menasco
- Center for Medical Systems Innovation Summer Internship Program, The University of Tokyo, Japan
| | - Tzai Chung Lai
- Center for Medical Systems Innovation Summer Internship Program, The University of Tokyo, Japan
| | - Matthew Pennisi
- Department of Materials Engineering, Graduate School of Engineering, The University of Tokyo, Japan
| | - Kensuke Osada
- Department of Materials Engineering, Graduate School of Engineering, The University of Tokyo, Japan
- Center for NanoBio Integration, The University of Tokyo, Japan
| | - Shigeto Fukushima
- Department of Materials Engineering, Graduate School of Engineering, The University of Tokyo, Japan
| | - Nobuhiro Nishiyama
- Division of Clinical Biotechnology, Center for Disease Biology and Integrative Medicine, Graduate School of Medicine, The University of Tokyo, Japan
| | - Yuichi Yamasaki
- Department of Materials Engineering, Graduate School of Engineering, The University of Tokyo, Japan
- Center for NanoBio Integration, The University of Tokyo, Japan
| | - Kazunori Kataoka
- Department of Materials Engineering, Graduate School of Engineering, The University of Tokyo, Japan
- Division of Clinical Biotechnology, Center for Disease Biology and Integrative Medicine, Graduate School of Medicine, The University of Tokyo, Japan
- Center for NanoBio Integration, The University of Tokyo, Japan
- Department of Bioengineering, Graduate School of Engineering, The University of Tokyo, Japan
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25
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Buell AK, White DA, Meier C, Welland ME, Knowles TPJ, Dobson CM. Surface Attachment of Protein Fibrils via Covalent Modification Strategies. J Phys Chem B 2010; 114:10925-38. [DOI: 10.1021/jp101579n] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Alexander K. Buell
- Nanoscience Centre, University of Cambridge, 11 JJ Thomson Avenue, CB3 0FF, U.K., and Department of Chemistry, University of Cambridge, Lensfield Road, CB2 1EW, U.K
| | - Duncan A. White
- Nanoscience Centre, University of Cambridge, 11 JJ Thomson Avenue, CB3 0FF, U.K., and Department of Chemistry, University of Cambridge, Lensfield Road, CB2 1EW, U.K
| | - Christoph Meier
- Nanoscience Centre, University of Cambridge, 11 JJ Thomson Avenue, CB3 0FF, U.K., and Department of Chemistry, University of Cambridge, Lensfield Road, CB2 1EW, U.K
| | - Mark E. Welland
- Nanoscience Centre, University of Cambridge, 11 JJ Thomson Avenue, CB3 0FF, U.K., and Department of Chemistry, University of Cambridge, Lensfield Road, CB2 1EW, U.K
| | - Tuomas P. J. Knowles
- Nanoscience Centre, University of Cambridge, 11 JJ Thomson Avenue, CB3 0FF, U.K., and Department of Chemistry, University of Cambridge, Lensfield Road, CB2 1EW, U.K
| | - Christopher M. Dobson
- Nanoscience Centre, University of Cambridge, 11 JJ Thomson Avenue, CB3 0FF, U.K., and Department of Chemistry, University of Cambridge, Lensfield Road, CB2 1EW, U.K
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Chaumet-Riffaud P, Martinez-Duncker I, Marty AL, Richard C, Prigent A, Moati F, Sarda-Mantel L, Scherman D, Bessodes M, Mignet N. Synthesis and Application of Lactosylated, 99mTc Chelating Albumin for Measurement of Liver Function. Bioconjug Chem 2010; 21:589-96. [DOI: 10.1021/bc900275f] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Philippe Chaumet-Riffaud
- Université Paris-Sud 11, EA4046, Kremlin-Bicêtre, F-94275, AP-HP, CHU de Bicêtre, Le Kremlin-Bicêtre, F-94275, Unité de Pharmacologie Chimique et Génétique, U640 INSERM, UMR8151 CNRS, Université Paris Descartes, Paris, France, F-75006, Université Paris 7, U733 INSERM, CRB3, Faculté Xavier Bichat, Paris, France, AP-HP, Hôpital Bichat, Paris, F-75018, and Faculty of Science, Morelos State Autonomous University, Cuernavaca, Mexico
| | - Ivan Martinez-Duncker
- Université Paris-Sud 11, EA4046, Kremlin-Bicêtre, F-94275, AP-HP, CHU de Bicêtre, Le Kremlin-Bicêtre, F-94275, Unité de Pharmacologie Chimique et Génétique, U640 INSERM, UMR8151 CNRS, Université Paris Descartes, Paris, France, F-75006, Université Paris 7, U733 INSERM, CRB3, Faculté Xavier Bichat, Paris, France, AP-HP, Hôpital Bichat, Paris, F-75018, and Faculty of Science, Morelos State Autonomous University, Cuernavaca, Mexico
| | - Anne-Laure Marty
- Université Paris-Sud 11, EA4046, Kremlin-Bicêtre, F-94275, AP-HP, CHU de Bicêtre, Le Kremlin-Bicêtre, F-94275, Unité de Pharmacologie Chimique et Génétique, U640 INSERM, UMR8151 CNRS, Université Paris Descartes, Paris, France, F-75006, Université Paris 7, U733 INSERM, CRB3, Faculté Xavier Bichat, Paris, France, AP-HP, Hôpital Bichat, Paris, F-75018, and Faculty of Science, Morelos State Autonomous University, Cuernavaca, Mexico
| | - Cyrille Richard
- Université Paris-Sud 11, EA4046, Kremlin-Bicêtre, F-94275, AP-HP, CHU de Bicêtre, Le Kremlin-Bicêtre, F-94275, Unité de Pharmacologie Chimique et Génétique, U640 INSERM, UMR8151 CNRS, Université Paris Descartes, Paris, France, F-75006, Université Paris 7, U733 INSERM, CRB3, Faculté Xavier Bichat, Paris, France, AP-HP, Hôpital Bichat, Paris, F-75018, and Faculty of Science, Morelos State Autonomous University, Cuernavaca, Mexico
| | - Alain Prigent
- Université Paris-Sud 11, EA4046, Kremlin-Bicêtre, F-94275, AP-HP, CHU de Bicêtre, Le Kremlin-Bicêtre, F-94275, Unité de Pharmacologie Chimique et Génétique, U640 INSERM, UMR8151 CNRS, Université Paris Descartes, Paris, France, F-75006, Université Paris 7, U733 INSERM, CRB3, Faculté Xavier Bichat, Paris, France, AP-HP, Hôpital Bichat, Paris, F-75018, and Faculty of Science, Morelos State Autonomous University, Cuernavaca, Mexico
| | - Frederic Moati
- Université Paris-Sud 11, EA4046, Kremlin-Bicêtre, F-94275, AP-HP, CHU de Bicêtre, Le Kremlin-Bicêtre, F-94275, Unité de Pharmacologie Chimique et Génétique, U640 INSERM, UMR8151 CNRS, Université Paris Descartes, Paris, France, F-75006, Université Paris 7, U733 INSERM, CRB3, Faculté Xavier Bichat, Paris, France, AP-HP, Hôpital Bichat, Paris, F-75018, and Faculty of Science, Morelos State Autonomous University, Cuernavaca, Mexico
| | - Laure Sarda-Mantel
- Université Paris-Sud 11, EA4046, Kremlin-Bicêtre, F-94275, AP-HP, CHU de Bicêtre, Le Kremlin-Bicêtre, F-94275, Unité de Pharmacologie Chimique et Génétique, U640 INSERM, UMR8151 CNRS, Université Paris Descartes, Paris, France, F-75006, Université Paris 7, U733 INSERM, CRB3, Faculté Xavier Bichat, Paris, France, AP-HP, Hôpital Bichat, Paris, F-75018, and Faculty of Science, Morelos State Autonomous University, Cuernavaca, Mexico
| | - Daniel Scherman
- Université Paris-Sud 11, EA4046, Kremlin-Bicêtre, F-94275, AP-HP, CHU de Bicêtre, Le Kremlin-Bicêtre, F-94275, Unité de Pharmacologie Chimique et Génétique, U640 INSERM, UMR8151 CNRS, Université Paris Descartes, Paris, France, F-75006, Université Paris 7, U733 INSERM, CRB3, Faculté Xavier Bichat, Paris, France, AP-HP, Hôpital Bichat, Paris, F-75018, and Faculty of Science, Morelos State Autonomous University, Cuernavaca, Mexico
| | - Michel Bessodes
- Université Paris-Sud 11, EA4046, Kremlin-Bicêtre, F-94275, AP-HP, CHU de Bicêtre, Le Kremlin-Bicêtre, F-94275, Unité de Pharmacologie Chimique et Génétique, U640 INSERM, UMR8151 CNRS, Université Paris Descartes, Paris, France, F-75006, Université Paris 7, U733 INSERM, CRB3, Faculté Xavier Bichat, Paris, France, AP-HP, Hôpital Bichat, Paris, F-75018, and Faculty of Science, Morelos State Autonomous University, Cuernavaca, Mexico
| | - Nathalie Mignet
- Université Paris-Sud 11, EA4046, Kremlin-Bicêtre, F-94275, AP-HP, CHU de Bicêtre, Le Kremlin-Bicêtre, F-94275, Unité de Pharmacologie Chimique et Génétique, U640 INSERM, UMR8151 CNRS, Université Paris Descartes, Paris, France, F-75006, Université Paris 7, U733 INSERM, CRB3, Faculté Xavier Bichat, Paris, France, AP-HP, Hôpital Bichat, Paris, F-75018, and Faculty of Science, Morelos State Autonomous University, Cuernavaca, Mexico
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27
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Fry AK, Schilke KF, McGuire J, Bird KE. Synthesis and anticoagulant activity of heparin immobilized “end-on” to polystyrene microspheres coated with end-group activated polyethylene oxide. J Biomed Mater Res B Appl Biomater 2010; 94:187-95. [PMID: 20524194 DOI: 10.1002/jbm.b.31640] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Allyson K Fry
- School of Chemical, Biological and Environmental Engineering, Oregon State University, Corvallis, Oregon 97331, USA
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28
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Santos AO, da Silva LCG, Bimbo LM, de Lima MCP, Simões S, Moreira JN. Design of peptide-targeted liposomes containing nucleic acids. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2009; 1798:433-41. [PMID: 20004174 DOI: 10.1016/j.bbamem.2009.12.001] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2009] [Revised: 11/08/2009] [Accepted: 12/01/2009] [Indexed: 11/15/2022]
Abstract
Anticancer systemic gene silencing therapy has been so far limited by the inexistence of adequate carrier systems that ultimately provide an efficient intracellular delivery into target tumor cells. In this respect, one promising strategy involves the covalent attachment of internalizing-targeting ligands at the extremity of PEG chains grafted onto liposomes. Therefore, the present work aims at designing targeted liposomes containing nucleic acids, with small size, high encapsulation efficiency and able to be actively internalized by SCLC cells, using a hexapeptide (antagonist G) as a targeting ligand. For this purpose, the effect of the liposomal preparation method, loading material (ODN versus siRNA) and peptide-coupling procedure (direct coupling versus post-insertion) on each of the above-mentioned parameters was assessed. Post-insertion of DSPE-PEG-antagonist G conjugates into preformed liposomes herein named as stabilized lipid particles, resulted in targeted vesicles with a mean size of about 130 nm, encapsulation efficiency close to 100%, and a loading capacity of approximately 5 nmol siRNA/mumol of total lipid. In addition, the developed targeted vesicles showed increased internalization in SCLC cells, as well as in other tumor cells and HMEC-1 microvascular endothelial cells. The improved cellular association, however, did not correlate with enhanced downregulation of the target protein (Bcl-2) in SCLC cells. These results indicate that additional improvements need to be performed in the future, namely by ameliorating the access of the nucleic acids to the cytoplasm of the tumor cells following receptor-mediated endocytosis.
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Affiliation(s)
- Adriana O Santos
- Laboratory of Pharmaceutical Technology, University of Coimbra, Portugal
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29
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30
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Ong SM, He L, Thuy Linh NT, Tee YH, Arooz T, Tang G, Tan CH, Yu H. Transient inter-cellular polymeric linker. Biomaterials 2007; 28:3656-67. [PMID: 17512584 DOI: 10.1016/j.biomaterials.2007.04.034] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2007] [Accepted: 04/27/2007] [Indexed: 11/26/2022]
Abstract
Three-dimensional (3D) tissue-engineered constructs with bio-mimicry cell-cell and cell-matrix interactions are useful in regenerative medicine. In cell-dense and matrix-poor tissues of the internal organs, cells support one another via cell-cell interactions, supplemented by small amount of the extra-cellular matrices (ECM) secreted by the cells. Here we connect HepG2 cells directly but transiently with inter-cellular polymeric linker to facilitate cell-cell interaction and aggregation. The linker consists of a non-toxic low molecular-weight polyethyleneimine (PEI) backbone conjugated with multiple hydrazide groups that can aggregate cells within 30 min by reacting with the aldehyde handles on the chemically modified cell-surface glycoproteins. The cells in the cellular aggregates proliferated; and maintained the cortical actin distribution of the 3D cell morphology while non-aggregated cells died over 7 days of suspension culture. The aggregates lost distinguishable cell-cell boundaries within 3 days; and the ECM fibers became visible around cells from day 3 onwards while the inter-cellular polymeric linker disappeared from the cell surfaces over time. The transient inter-cellular polymeric linker can be useful for forming 3D cellular and tissue constructs without bulk biomaterials or extensive network of engineered ECM for various applications.
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Affiliation(s)
- Siew-Min Ong
- Institute of Biotechnology and Nanotechnology, A*STAR, The Nanos, Singapore
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31
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Iafelice R, Cristoni S, Caccia D, Russo R, Rossi-Bernardi L, Lowe K, Perrella M. Identification of the sites of deoxyhaemoglobin PEGylation. Biochem J 2007; 403:189-96. [PMID: 17155933 PMCID: PMC1828880 DOI: 10.1042/bj20061556] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The 2-iminothiolane reaction with protein amino groups adds a spacer arm ending with a thiol group, which can be further treated with molecules carrying a maleimido ring. This approach is currently used for the preparation of a candidate 'blood substitute' in which human Hb (haemoglobin) is conjugated with long chains of PEG [poly(ethylene glycol)]. To identify the thiolation sites by MS, we have carried out the reaction using deoxyHb bound to inositol hexaphosphate to protect some of the residues crucial for function and NEM (N-ethylmaleimide) to block and stabilize the thiol groups prior to enzymatic digestion by trypsin and pepsin. Under the conditions for the attachment of 5-8 PEG chains per tetramer, the thiolated residues were Lys7, Lys11, Lys16, Lys56 and Lys139 and, with lower accessibility, Lys90, Lys99 and Lys60 of the a-chain and Lys8, Lys17, Lys59, Lys61 and Lys66 and, with lower accessibility, Lys65, Lys95 and Lys144 of the b-chain. The a-amino groups of a- and b-chains were not modified and the reaction of the Cysb93 residues with NEM was minor or absent. After the modification with thiolane and NEM of up to five to eight lysine residues per tetramer, the products retained a large proportion of the properties of native Hb, such as low oxygen affinity, co-operativity, effect of the modulators and stability to autoxidation. Under identical anaerobic conditions, the conjugation of the thiolated Hb tetramer with five or six chains of the maleimido derivative of 6 kDa PEG yielded products with diminished co-operativity, Hill coefficient h=1.3-1.5, still retaining a significant proportion of the effects of the modulators of oxygen affinity and stability to autoxidation. Co-operativity was apparently independent of the topological distribution of the PEGylated sites as obtained by treating partly the thiolated protein with NEM prior to PEGylation [poly(ethylene glycol)ation].
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Affiliation(s)
- Roberto Iafelice
- *Dipartimento di Scienze e Tecnologie Biomediche, Università degli Studi di Milano, LITA (Laboratorio Interdisciplinare di Tecnologie Avanzate), Via F.lli Cervi, 93, 20090 Segrate (MI), Italy
| | | | - Dario Caccia
- *Dipartimento di Scienze e Tecnologie Biomediche, Università degli Studi di Milano, LITA (Laboratorio Interdisciplinare di Tecnologie Avanzate), Via F.lli Cervi, 93, 20090 Segrate (MI), Italy
| | - Rosaria Russo
- *Dipartimento di Scienze e Tecnologie Biomediche, Università degli Studi di Milano, LITA (Laboratorio Interdisciplinare di Tecnologie Avanzate), Via F.lli Cervi, 93, 20090 Segrate (MI), Italy
| | - Luigi Rossi-Bernardi
- *Dipartimento di Scienze e Tecnologie Biomediche, Università degli Studi di Milano, LITA (Laboratorio Interdisciplinare di Tecnologie Avanzate), Via F.lli Cervi, 93, 20090 Segrate (MI), Italy
| | - Kenneth C. Lowe
- ‡School of Biology, University of Nottingham, Nottingham, NG7 2RD, U.K
| | - Michele Perrella
- *Dipartimento di Scienze e Tecnologie Biomediche, Università degli Studi di Milano, LITA (Laboratorio Interdisciplinare di Tecnologie Avanzate), Via F.lli Cervi, 93, 20090 Segrate (MI), Italy
- To whom correspondence should be addressed (email )
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Krauland AH, Hoffer MH, Bernkop-Schnürch A. Viscoelastic properties of a new in situ gelling thiolated chitosan conjugate. Drug Dev Ind Pharm 2006; 31:885-93. [PMID: 16306000 DOI: 10.1080/03639040500271985] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
The aim of this study was the synthesis of a new thiolated chitosan conjugate and the evaluation of its viscoelastic properties in vitro. The modification of chitosan was achieved by covalent attachment of isopropyl-S-acetylthioacetimidate to chitosan. The resulting conjugate (chitosan-TEA; chitosan-thioethylamidine) exhibited 300.7+/-27.4 micromol thiol groups per gram polymer and no disulfide bond. For rheological studies, the pH of 0.5% and 1% polymer solutions was adjusted to 6.5 in order to simulate a physiological pH-level. Both, 0.5% and 1% chitosan-TEA solutions showed the transition from sol to gel within 30 min. Within 6 h of incubation, the storage modulus of 0.5% and 1% chitosan-TEA increased 3354-fold and 6199-fold, whereas the loss modulus increased 11-fold and 38-fold, respectively. Frequency sweep measurements demonstrated an increase in crosslinking of the thiolated polymer as a function of time. The formation of inter- and/or intramolecular disulfide bonds was monitored indirectly via determining the decrease of thiol groups. Unmodified chitosan did not exhibit in situ gelling properties. The release of a fluorescent marker being incorporated in a 0.5% chitosan-TEA solution was significantly (p<0.001) slower, when the formulation was preincubated for one hour and consequently already highly crosslinked. The polymer generated within this study represents a promising novel tool for various drug delivery systems, where in situ gelling properties are advantageous.
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Affiliation(s)
- Alexander H Krauland
- Institute of Pharmaceutical Technology and Biopharmaceutics, Center of Pharmacy, University of Vienna, Vienna, Austria
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33
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Manjula BN, Tsai AG, Intaglietta M, Tsai CH, Ho C, Smith PK, Perumalsamy K, Kanika ND, Friedman JM, Acharya SA. Conjugation of Multiple Copies of Polyethylene Glycol to Hemoglobin Facilitated Through Thiolation: Influence on Hemoglobin Structure and Function. Protein J 2005; 24:133-46. [PMID: 16096719 DOI: 10.1007/s10930-005-7837-2] [Citation(s) in RCA: 66] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2005] [Indexed: 11/30/2022]
Abstract
PEGylation induced changes in molecular volume and solution properties of HbA have been implicated as potential modulators of its vasoconstrictive activity. However, our recent studies with PEGylated Hbs carrying two PEG chains/Hb, have demonstrated that the modulation of the vasoconstrictive activity of Hb is not a direct correlate of the molecular volume and solution properties of the PEGylated Hb and implicated a role for the surface charge and/or the pattern of surface decoration of Hb with PEG. HbA has now been modified by thiolation mediated maleimide chemistry based PEGylation that does not alter its surface charge and conjugates multiple copies of PEG5K chains. This protocol has been optimized to generate a PEGylated Hb, (SP-PEG5K)(6)-Hb, that carries approximately six PEG5K chains/Hb - HexaPEGylated Hb. PEGylation increased the O(2) affinity of Hb and desensitized the molecule for the influence of ionic strength, pH, and allosteric effectors, presumably a consequence of the hydrated PEG-shell generated around the protein. The total PEG mass in (SP-PEG5K)(6)-Hb, its molecular volume, O(2) affinity and solution properties are similar to that of another PEGylated Hb, (SP-PEG20K)(2)-Hb, that carries two PEG20K chains/Hb. However, (SP-PEG5K)(6)-Hb exhibited significantly reduced vasoconstriction mediated response than (SP-PEG20K)(2)-Hb. These results demonstrate that the enhanced molecular size and solution properties achieved through the conjugation of multiple copies of small PEG chains to Hb is more effective in decreasing its vasoconstrictive activity than that achieved through the conjugation of a comparable PEG mass using a small number of large PEG chains.
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Affiliation(s)
- Belur N Manjula
- Departments of Physiology and Biophysics, Albert Einstein College of Medicine, Bronx, NY 10461, USA
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Kafedjiiski K, Krauland AH, Hoffer MH, Bernkop-Schnürch A. Synthesis and in vitro evaluation of a novel thiolated chitosan. Biomaterials 2005; 26:819-26. [PMID: 15350788 DOI: 10.1016/j.biomaterials.2004.03.011] [Citation(s) in RCA: 107] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2003] [Accepted: 03/13/2004] [Indexed: 11/29/2022]
Abstract
In order to achieve the same properties as chitosan-4-thio-butyl-amidine and to overcome at the same time its insufficient stability, the aim of this study was to evaluate the imidoester reaction of isopropyl-S-acetylthioacetimidate for the chemical modification of chitosan and to study the properties of the resulting chitosan-thioethylamidine (TEA) derivative. The thioalkylamidine substitute was introduced without the formation of N-substituted non-thiol products. The resulting conjugates exhibited 1.05+/-0.17% or 139.68+/-17.13 micromol immobilized free thiol groups per gram polymer and a total amount of reduced and oxidized thiol groups of 1.81+/-0.65% or 179.46+/-67.95 micromol/g polymer. By the immobilization of thiol groups mucoadhesion was strongly improved due to the formation of disulfide bonds with mucus glycoproteins. Chitosan-TEA was investigated regarding to its mucoadhesive properties via tensile studies and the rotating cylinder method. In tensile studies the total work of adhesion of chitosan-TEA was increased 3.3-fold in comparison to unmodified chitosan. Results from the rotating cylinder method showed an improvement ratio of 8.9 for chitosan-TEA compared with unmodified chitosan. In spite of the immobilization of thiol groups onto chitosan its swelling behavior in aqueous solutions was not significantly altered. Cumulative release studies out of matrix tablets comprising the chitosan-TEA and the model compound fluorescence labeled dextrane (FD(4)) demonstrated a controlled release over 3h with a trend toward a pseudo-zero-order kinetic. Because of these features the new chitosan thioamidine conjugate might represent a promising new polymeric excipient for various drug delivery systems.
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Affiliation(s)
- Krum Kafedjiiski
- Department of Pharmaceutical Technology, Institute of Pharmacy, Leopold-Franzens-University Innsbruck, Innrain 52, Josef Möller Haus, A-6020 Innsbruck, Austria
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35
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Biechlin ML, d'Hardemare ADM, Fraysse M, Gilly FN, Bonmartin A. Improvement in radiolabelling proteins with the99mTc-tricarbonyl-core [99mTc(CO)3]+, by thiol-derivatization with iminothiolane: application to γ-globulins and annexin V. J Labelled Comp Radiopharm 2005. [DOI: 10.1002/jlcr.999] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Tacal O, Ozer I. A comparison between SDS-PAGE and size exclusion chromatography as analytical methods for determining product composition in protein conjugation reactions. JOURNAL OF BIOCHEMICAL AND BIOPHYSICAL METHODS 2002; 52:161-8. [PMID: 12376019 DOI: 10.1016/s0165-022x(02)00070-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Horseradish peroxidase (HRP) was conjugated with bovine serum albumin (BSA) or human alpha(1)-proteinase inhibitor (alpha(1)-PI). The enzyme was maleimidylated using N-succinimidyl 4-(N-maleimidomethyl)cyclohexane-1-carboxylate (SMCC) and then allowed to react with thiolated BSA or reduced alpha(1)-PI. The conjugation products were analysed both by SDS-PAGE and size exclusion chromatography (SEC) on Sephadex G200. The two methods of evaluating conjugative processes were compared with respect to information provided in relation to the behaviour of the products in solution. The results showed that neither SDS-PAGE nor SEC alone provides sufficient information about conjugate structure. The basic conjugate units observed in electrophoresis tend to form dimeric or higher-order aggregates under gel chromatographic conditions.
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Affiliation(s)
- Ozden Tacal
- Faculty of Pharmacy, Department of Biochemistry, Hacettepe University, 06100, Ankara, Turkey.
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Mokotoff M, Mocarski YM, Gentsch BL, Miller MR, Zhou JH, Chen J, Ball ED. Caution in the use of 2-iminothiolane (Traut's reagent) as a cross-linking agent for peptides. The formation of N
-peptidyl-2-iminothiolanes with bombesin (BN) antagonist (d
-Trp6
,Leu13
-ψ[CH2
NH]-Phe14
)BN6−14
and d
-Trp-Gln-Trp-NH2. ACTA ACUST UNITED AC 2002; 57:383-9. [PMID: 11350598 DOI: 10.1034/j.1399-3011.2001.00845.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
During a study aimed at generating a bispecific molecule between BN antagonist (D-Trp(6),Leu(13)-psi[CH(2)NH]-Phe(14))BN(6-14) (Antag1) and mAb22 (anti-FcgammaRI), we attempted to cross-link the two molecules by introducing a thiol group into Antag1 via 2-iminothiolane (2-IT, Traut's reagent). We found that reaction of Antag1 with 2-IT, when observed using HPLC, affords two products, but that the later eluting peptide is rapidly transformed into the earlier eluting peptide. To understand what was occurring we synthesized a model peptide, D-Trp-Gln-Trp-NH(2) (TP1), the N-terminal tripeptide of Antag1. Reaction of TP1 with 2-IT for 5 min gave products 1a and 3a; the concentration of 1a decreased with reaction time, whereas that of 3a increased. Thiol 1a, the expected Traut product, was identified by collecting it in a vial containing N-methylmaleimide and then isolating the resultant Michael addition product 2a, which was confirmed by mass spectrometry. Thiol 1a is stable at acidic pH, but is unstable at pH 7.8, cyclizes and loses NH3 to give N-TP1-2-iminothiolane (3a), ES-MS (m/z) [602.1 (M+H)(+)], as well as regenerating TP1. Repeat reaction with Antag1 and 2-IT allowed us to isolate N-Antag1-2-iminothiolane (3b), FAB-MS (m/z) [1212.8 (M+H)(+)] and trap the normal Traut product 1b as its N-methylmaleimide Michael addition product 2b, ES-MS (m/z) [1340.8 (M+H)(+)]. Thiol 1b is also stable at acidic pH, but when neutralized is unstable and cyclizes, forming 3b and Antag1.
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Affiliation(s)
- M Mokotoff
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, PA 15261, USA.
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Betley JR, Cesaro-Tadic S, Mekhalfia A, Rickard JH, Denham H, Partridge LJ, Plückthun A, Blackburn GM. Direkte Identifizierung von Proteinkatalysatoren mit Phosphatase-Aktivität durch kovalente Bindung an ein Suizid-Substrat. Angew Chem Int Ed Engl 2002. [DOI: 10.1002/1521-3757(20020301)114:5<801::aid-ange801>3.0.co;2-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Weber C, Reiss S, Langer K. Preparation of surface modified protein nanoparticles by introduction of sulfhydryl groups. Int J Pharm 2000; 211:67-78. [PMID: 11137340 DOI: 10.1016/s0378-5173(00)00590-1] [Citation(s) in RCA: 64] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
The objective of the present study was to establish several methods for the introduction of thiol groups onto the surface of human serum albumin (HSA) nanoparticles. Besides the epsilon-amino groups of lysine, the carboxyl groups of asparaginic and glutaminic acid, and the carbonyl groups of the cross-linker glutaraldehyde, sulfhydryl groups are possible targets for the covalent linkage of drugs to particle surfaces. In principle, the thiol groups were introduced by the reaction with dithiotreitol (DDT) or 2-iminothiolane, by quenching reactive aldehyde residues with cystaminiumdichloride or by coupling L-cysteine and cystaminiumdichloride by the aqueous carbodiimide reaction. The resulting nanoparticulate systems were characterised concerning the number of available sulfhydryl groups, particle size and particle density. It was shown, that by variation of the reaction conditions, e.g., the concentration of the coupling reagent or the sulfhydryl containing component as well as the reaction time, the proposed methods enabled the preparation of HSA nanoparticles with a well defined surface characteristic. Stability studies showed that the introduced thiol groups were relatively stable and lost their reactivity with a half-life of 28.2 days independently of the method used for the sulfhydryl group introduction. Besides the quantification of free sulfhydryl groups the covalent attachment of cystaminiumdichloride by the carbodiimide reaction was used to calculate the amount of free carboxyl groups on the surface of the nanoparticles. The toxicity of the modified nanoparticles was evaluated in cell culture experiments.
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Affiliation(s)
- C Weber
- Institut für Pharmazeutische Technologie, Biozentrum Niederursel, Johann Wolfgang Goethe-Universität, Marie-Curie-Strasse 9, D-60439, Frankfurt am Main, Germany
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