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Ramirez-Garcia PD, Veldhuis NA, Bunnett NW, Davis TP. Targeting endosomal receptors, a new direction for polymers in nanomedicine. J Mater Chem B 2023; 11:5390-5399. [PMID: 37219363 PMCID: PMC10641892 DOI: 10.1039/d3tb00156c] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
In this perspective, we outline a new opportunity for exploiting nanoparticle delivery of antagonists to target G-protein coupled receptors localized in intracellular compartments. We discuss the specific example of antagonizing endosomal receptors involved in pain to develop long-lasting analgesics but also outline the broader application potential of this delivery approach. We discuss the materials used to target endosomal receptors and indicate the design requirements for future successful applications.
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Affiliation(s)
- Paulina D Ramirez-Garcia
- Dentistry Translational Research Center, New York University College of Dentistry, New York, 10010, USA.
- Department of Molecular Pathobiology, New York University College of Dentistry, New York, NY 10010, USA
| | - Nicholas A Veldhuis
- Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC, 3052, Australia
| | - Nigel W Bunnett
- Department of Molecular Pathobiology, New York University College of Dentistry, New York, NY 10010, USA
- Department of Neuroscience and Physiology, Neuroscience Institute, New York University Langone School of Medicine, New York, NY 10010, USA
| | - Thomas P Davis
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, QLD, 4072, Australia.
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2
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Impact of nanoparticles on amyloid β-induced Alzheimer's disease, tuberculosis, leprosy and cancer: a systematic review. Biosci Rep 2023; 43:232435. [PMID: 36630532 PMCID: PMC9905792 DOI: 10.1042/bsr20220324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Revised: 01/10/2023] [Accepted: 01/11/2023] [Indexed: 01/13/2023] Open
Abstract
Nanotechnology is an interdisciplinary domain of science, technology and engineering that deals with nano-sized materials/particles. Usually, the size of nanoparticles lies between 1 and 100 nm. Due to their small size and large surface area-to-volume ratio, nanoparticles exhibit high reactivity, greater stability and adsorption capacity. These important physicochemical properties attract scientific community to utilize them in biomedical field. Various types of nanoparticles (inorganic and organic) have broad applications in medical field ranging from imaging to gene therapy. These are also effective drug carriers. In recent times, nanoparticles are utilized to circumvent different treatment limitations. For example, the ability of nanoparticles to cross the blood-brain barrier and having a certain degree of specificity towards amyloid deposits makes themselves important candidates for the treatment of Alzheimer's disease. Furthermore, nanotechnology has been used extensively to overcome several pertinent issues like drug-resistance phenomenon, side effects of conventional drugs and targeted drug delivery issue in leprosy, tuberculosis and cancer. Thus, in this review, the application of different nanoparticles for the treatment of these four important diseases (Alzheimer's disease, tuberculosis, leprosy and cancer) as well as for the effective delivery of drugs used in these diseases has been presented systematically. Although nanoformulations have many advantages over traditional therapeutics for treating these diseases, nanotoxicity is a major concern that has been discussed subsequently. Lastly, we have presented the promising future prospective of nanoparticles as alternative therapeutics. In that section, we have discussed about the futuristic approach(es) that could provide promising candidate(s) for the treatment of these four diseases.
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Cuevas F, Saavedra CJ, Romero‐Estudillo I, Boto A, Ordóñez M, Vergara I. Structural Diversity using Hyp
“Customizable Units”
:
Proof‐of‐Concept
Synthesis of Sansalvamide‐Related Antitumoral Peptides. European J Org Chem 2021. [DOI: 10.1002/ejoc.202001427] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Fernando Cuevas
- Centro de Investigaciones Químicas-IICBA Universidad Autónoma del Estado de Morelos Av. Universidad 1001 Cuernavaca Morelos 62209 México
| | - Carlos J. Saavedra
- Instituto de Productos Naturales y Agrobiología del CSIC Avda. Astrofísico Francisco Sánchez 3 38206- La Laguna Tenerife Spain
- BIOSIGMA SL c/Antonio Dominguez Afonso 16 38003- S/C Tenerife Spain
| | - Ivan Romero‐Estudillo
- Centro de Investigaciones Químicas-IICBA Universidad Autónoma del Estado de Morelos Av. Universidad 1001 Cuernavaca Morelos 62209 México
- Catedrático CONACYT-CIQ-UAEM México
| | - Alicia Boto
- Instituto de Productos Naturales y Agrobiología del CSIC Avda. Astrofísico Francisco Sánchez 3 38206- La Laguna Tenerife Spain
| | - Mario Ordóñez
- Centro de Investigaciones Químicas-IICBA Universidad Autónoma del Estado de Morelos Av. Universidad 1001 Cuernavaca Morelos 62209 México
| | - Irene Vergara
- Departamento de Ciencias Químico-Biológicas Universidad de las Américas Puebla, ExHda Sta. Catarina Mártir s/n San Andrés Cholula Puebla 72820 México
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Zhong S, Chen C, Yang G, Zhu Y, Cao H, Xu B, Luo Y, Gao Y, Zhang W. Acid-Triggered Nanoexpansion Polymeric Micelles for Enhanced Photodynamic Therapy. ACS APPLIED MATERIALS & INTERFACES 2019; 11:33697-33705. [PMID: 31487149 DOI: 10.1021/acsami.9b12620] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Photodynamic therapy (PDT) as a noninvasive and selective treatment technology has presented great potential in cancer prevention and precision medicine, but its therapeutic efficacy is still greatly inhibited by the limitations of photosensitizers (PSs) in the microenvironment such as the aggregation caused quenching (ACQ) of PSs. Herein, we proposed an "acid-triggered nanoexpansion" method to further reduce the aggregation of photosensitizers by constructing acetal-based polymeric micelles. A pH-responsive amphiphilic block copolymer, POEGMA-b-[PTTMA-co-PTPPC6MA] was synthesized by reversible addition-fragmentation chain transfer (RAFT) polymerization and self-assembled into spherical micelles. In the normal physiological environment, the micelles were stable and had good biocompatibility. Upon entry into the acidic microenvironment of the tumor, the acid-responsive hydrophobic 2, 4, 6-trimethoxybenzaldehyde in the micelles hydrolyzed and generated a hydrophilic diol moiety. Although the hydrophility of the micellar core was increased, the assembled structure of block copolymers was not dissociated but expanded. The responsive expansion of the micelles could allow the photosensitizers to well-disperse in the core, whereas more tumor-dissolved oxygen entered the micelles. This phenomenon could provide a better nanoenvironment for photosensitizers to reduce the ACQ of the photosensitizers, leading to more singlet oxygen (1O2) produced under the laser irradiation (650 nm). Both in vitro and in vivo studies have demonstrated that the remarkable photodynamic therapeutic efficacy of acid-responsive micelles could be realized. Thus, the acid-triggered nanoexpansion method might provide more possibilities to develop efficient platforms for treating cancers.
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Shao LD, Su J, Ye B, Liu JX, Zuo ZL, Li Y, Wang YY, Xia C, Zhao QS. Design, Synthesis, and Biological Activities of Vibsanin B Derivatives: A New Class of HSP90 C-Terminal Inhibitors. J Med Chem 2017; 60:9053-9066. [PMID: 29019670 DOI: 10.1021/acs.jmedchem.7b01395] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Previously, vibsanin B (ViB) was found to preferentially target HSP90β compared to HSP90α. In this study, multiple experiments, including pull-down assays of biotin-ViB with recombinant HSP90β-NTD, MD, CTD, and full-length HSP90β, molecular docking of ViB and its derivatives to the HSP90 CTD, and a inhibition assay of interaction of the HSP90β CTD with GST-tagged cyclophilin 40 (Cyp40) by ViB derivatives, suggest that ViB can directly bind to the HSP90 C-terminus. On the basis of the docking predictions and primary structure-activity relationships (SARs), a series of ViB analogues devised with focus on the C18 position, along with compounds derivatized at the C4, C7, and C8 positions, were designed and chemically synthesized. Compound 12f (IC50 = 1.12 μM against SK-BR-3) exhibits great potency with drug-like properties. Overall, our findings demonstrate that compounds with the vibsanin B scaffold are a new class of HSP90 C-terminal inhibitors with considerable potential as anticancer agents.
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Affiliation(s)
- Li-Dong Shao
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201, China
| | - Jia Su
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201, China
| | - Baixin Ye
- State Key Laboratory of Medical Genomics and Shanghai Institute of Hematology, RuiJin Hospital, Shanghai Jiao Tong University School of Medicine , Shanghai 200025, China
| | - Jiang-Xin Liu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201, China
| | - Zhi-Li Zuo
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201, China
| | - Yan Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201, China
| | - Yue-Ying Wang
- State Key Laboratory of Medical Genomics and Shanghai Institute of Hematology, RuiJin Hospital, Shanghai Jiao Tong University School of Medicine , Shanghai 200025, China
| | - Chengfeng Xia
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201, China
| | - Qin-Shi Zhao
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201, China.,University of Chinese Academy of Science , Beijing 100049, China
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Sauvage F, Messaoudi S, Fattal E, Barratt G, Vergnaud-Gauduchon J. Heat shock proteins and cancer: How can nanomedicine be harnessed? J Control Release 2017; 248:133-143. [PMID: 28088573 DOI: 10.1016/j.jconrel.2017.01.013] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2016] [Accepted: 01/08/2017] [Indexed: 12/18/2022]
Abstract
Heat shock protein (hsp90) is an interesting target for cancer therapy because it is involved in the folding and stabilization of numerous proteins, including many that contribute to the development of cancer. It is part of the chaperone machinery that includes other heat shock proteins (hsp70, hsp27, hsp40) and is mainly localized in the cytosol, although many analogues or isoforms can be found in mitochondrion, endoplasmic reticulum and the cell membrane. Many potential inhibitors of hsp90 have been tested for cancer therapy but their usefulness is limited by their poor solubility in water and their ability to reach the target cells and the correct intracellular compartment. Nanomedicine, the incorporation of active molecules into an appropriate delivery system, could provide a solution to these drawbacks. In this review, we explain the rationale for using nanomedicine for this sort of cancer therapy, considering the properties of the chaperone machinery and of the different hsp90 analogues. We present some results that have already been obtained and put forward some strategies for delivery of hsp90 analogues to specific organelles.
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Affiliation(s)
- Félix Sauvage
- Institut Galien Paris-Sud, CNRS, UMR 8612, LabEx LERMIT, Univ. Paris-Sud/Univ. Paris-Saclay, 5 rue J.-B. Clément, Châtenay-Malabry, 92296, France
| | - Samir Messaoudi
- BioCIS-UMR 8076, Univ. Paris-Sud, CNRS, University Paris-Saclay, Châtenay-Malabry, 92296, France
| | - Elias Fattal
- Institut Galien Paris-Sud, CNRS, UMR 8612, LabEx LERMIT, Univ. Paris-Sud/Univ. Paris-Saclay, 5 rue J.-B. Clément, Châtenay-Malabry, 92296, France
| | - Gillian Barratt
- Institut Galien Paris-Sud, CNRS, UMR 8612, LabEx LERMIT, Univ. Paris-Sud/Univ. Paris-Saclay, 5 rue J.-B. Clément, Châtenay-Malabry, 92296, France
| | - Juliette Vergnaud-Gauduchon
- Institut Galien Paris-Sud, CNRS, UMR 8612, LabEx LERMIT, Univ. Paris-Sud/Univ. Paris-Saclay, 5 rue J.-B. Clément, Châtenay-Malabry, 92296, France.
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8
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Abstract
Stimuli-responsive polymers respond to a variety of external stimuli, which include optical, electrical, thermal, mechanical, redox, pH, chemical, environmental and biological signals. This paper is concerned with the process of forming such polymers by RAFT polymerization.
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Hu J, Qiao R, Whittaker MR, Quinn JF, Davis TP. Synthesis of Star Polymers by RAFT Polymerization as Versatile Nanoparticles for Biomedical Applications. Aust J Chem 2017. [DOI: 10.1071/ch17391] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The precise control of polymer chain architecture has been made possible by developments in polymer synthesis and conjugation chemistry. In particular, the synthesis of polymers in which at least three linear polymeric chains (or arms) are tethered to a central core has yielded a useful category of branched architecture, so-called star polymers. Fabrication of star polymers has traditionally been achieved using either a core-first technique or an arm-first approach. Recently, the ability to couple polymeric chain precursors onto a functionalized core via highly efficient coupling chemistry has provided a powerful new methodology for star synthesis. Star syntheses can be implemented using any of the living polymerization techniques using ionic or living radical intermediates. Consequently, there are innumerable routes to fabricate star polymers with varying chemical composition and arm numbers. In comparison with their linear counterparts, star polymers have unique characteristics such as low viscosity in solution, prolonged blood circulation, and high accumulation in tumour regions. These advantages mean that, far beyond their traditional application as rheology control agents, star polymers may also be useful in the medical and pharmaceutical sciences. In this account, we discuss recent advances made in our laboratory focused on star polymer research ranging from improvements in synthesis through to novel applications of the product materials. Specifically, we examine the core-first and arm-first preparation of stars using reversible addition–fragmentation chain transfer (RAFT) polymerization. Further, we also discuss several biomedical applications of the resulting star polymers, particularly those made by the arm-first protocol. Emphasis is given to applications in the emerging area of nanomedicine, in particular to the use of star polymers for controlled delivery of chemotherapeutic agents, protein inhibitors, signalling molecules, and siRNA. Finally, we examine possible future developments for the technology and suggest the further work required to enable clinical applications of these interesting materials.
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10
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Chen QJ, An ZS. Synthesis of star polymeric ionic liquids and use as the stabilizers for high internal phase emulsions. CHINESE JOURNAL OF POLYMER SCIENCE 2016. [DOI: 10.1007/s10118-016-1858-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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11
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Teo J, McCarroll JA, Boyer C, Youkhana J, Sagnella SM, Duong HTT, Liu J, Sharbeen G, Goldstein D, Davis TP, Kavallaris M, Phillips PA. A Rationally Optimized Nanoparticle System for the Delivery of RNA Interference Therapeutics into Pancreatic Tumors in Vivo. Biomacromolecules 2016; 17:2337-51. [DOI: 10.1021/acs.biomac.6b00185] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Joann Teo
- Tumour
Biology and Targeting Program, Children’s Cancer Institute,
Lowy Cancer Research Centre, UNSW Australia, Sydney, New South Wales 2052, Australia
- Australian
Centre for NanoMedicine, UNSW Australia, Sydney, New South Wales 2052, Australia
| | - Joshua A. McCarroll
- Tumour
Biology and Targeting Program, Children’s Cancer Institute,
Lowy Cancer Research Centre, UNSW Australia, Sydney, New South Wales 2052, Australia
- Australian
Centre for NanoMedicine, UNSW Australia, Sydney, New South Wales 2052, Australia
| | - Cyrille Boyer
- Australian
Centre for NanoMedicine, UNSW Australia, Sydney, New South Wales 2052, Australia
- Centre
for Advanced Macromolecular Design, School of Chemical Engineering, UNSW Australia, Sydney, New South Wales 2052, Australia
| | - Janet Youkhana
- Pancreatic
Cancer Translational Research Group, Lowy Cancer Research Centre,
Prince of Wales Clinical School, UNSW Australia, Sydney, New South Wales 2052, Australia
| | - Sharon M. Sagnella
- Tumour
Biology and Targeting Program, Children’s Cancer Institute,
Lowy Cancer Research Centre, UNSW Australia, Sydney, New South Wales 2052, Australia
- Australian
Centre for NanoMedicine, UNSW Australia, Sydney, New South Wales 2052, Australia
| | - Hien T. T. Duong
- Australian
Centre for NanoMedicine, UNSW Australia, Sydney, New South Wales 2052, Australia
- Centre
for Advanced Macromolecular Design, School of Chemical Engineering, UNSW Australia, Sydney, New South Wales 2052, Australia
| | - Jie Liu
- Pancreatic
Cancer Translational Research Group, Lowy Cancer Research Centre,
Prince of Wales Clinical School, UNSW Australia, Sydney, New South Wales 2052, Australia
| | - George Sharbeen
- Pancreatic
Cancer Translational Research Group, Lowy Cancer Research Centre,
Prince of Wales Clinical School, UNSW Australia, Sydney, New South Wales 2052, Australia
| | - David Goldstein
- Pancreatic
Cancer Translational Research Group, Lowy Cancer Research Centre,
Prince of Wales Clinical School, UNSW Australia, Sydney, New South Wales 2052, Australia
- Prince
of Wales Hospital, Prince of Wales Clinical School, Sydney, New South Wales 2052, Australia
| | - Thomas P. Davis
- ARC
Centre of Excellence in Convergent Bio-Nano Science and Technology
Monash Institute of Pharmaceutical Sciences, Monash University, Clayton, Victoria 3800, Australia
- Department
of Chemistry, University of Warwick, Coventry CV4 7AL, United Kingdom
| | - Maria Kavallaris
- Tumour
Biology and Targeting Program, Children’s Cancer Institute,
Lowy Cancer Research Centre, UNSW Australia, Sydney, New South Wales 2052, Australia
- Australian
Centre for NanoMedicine, UNSW Australia, Sydney, New South Wales 2052, Australia
- ARC Centre
of Excellence in Convergent Bio-Nano Science and Technology UNSW Australia, Sydney, New South Wales 2052, Australia
| | - Phoebe A. Phillips
- Australian
Centre for NanoMedicine, UNSW Australia, Sydney, New South Wales 2052, Australia
- Pancreatic
Cancer Translational Research Group, Lowy Cancer Research Centre,
Prince of Wales Clinical School, UNSW Australia, Sydney, New South Wales 2052, Australia
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Abbaszad Rafi A, Fakheri F, Mahkam M. Synthesis and preparation of new pH-sensitive nanocomposite and nanocapsule based on “MCM-41/poly methacrylic acid” as drug carriers. Polym Bull (Berl) 2016. [DOI: 10.1007/s00289-016-1627-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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13
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Khor SY, Hu J, McLeod VM, Quinn JF, Porter CJ, Whittaker MR, Kaminskas LM, Davis TP. The Pharmacokinetics and Biodistribution of a 64 kDa PolyPEG Star Polymer After Subcutaneous and Pulmonary Administration to Rats. J Pharm Sci 2016; 105:293-300. [DOI: 10.1016/j.xphs.2015.11.038] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2015] [Revised: 11/16/2015] [Accepted: 11/17/2015] [Indexed: 11/30/2022]
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Khor SY, Hu J, McLeod VM, Quinn JF, Williamson M, Porter CJ, Whittaker MR, Kaminskas LM, Davis TP. Molecular weight (hydrodynamic volume) dictates the systemic pharmacokinetics and tumour disposition of PolyPEG star polymers. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2015; 11:2099-108. [DOI: 10.1016/j.nano.2015.08.001] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2015] [Revised: 07/28/2015] [Accepted: 08/17/2015] [Indexed: 10/23/2022]
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15
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Wang L, Liu G, Wang X, Hu J, Zhang G, Liu S. Acid-Disintegratable Polymersomes of pH-Responsive Amphiphilic Diblock Copolymers for Intracellular Drug Delivery. Macromolecules 2015. [DOI: 10.1021/acs.macromol.5b01709] [Citation(s) in RCA: 92] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Lei Wang
- CAS Key Laboratory of Soft
Matter Chemistry, Hefei National Laboratory for Physical Sciences
at the Microscale, iChem (Collaborative Innovation Center of Chemistry
for Energy Materials), Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Guhuan Liu
- CAS Key Laboratory of Soft
Matter Chemistry, Hefei National Laboratory for Physical Sciences
at the Microscale, iChem (Collaborative Innovation Center of Chemistry
for Energy Materials), Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Xiaorui Wang
- CAS Key Laboratory of Soft
Matter Chemistry, Hefei National Laboratory for Physical Sciences
at the Microscale, iChem (Collaborative Innovation Center of Chemistry
for Energy Materials), Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Jinming Hu
- CAS Key Laboratory of Soft
Matter Chemistry, Hefei National Laboratory for Physical Sciences
at the Microscale, iChem (Collaborative Innovation Center of Chemistry
for Energy Materials), Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Guoying Zhang
- CAS Key Laboratory of Soft
Matter Chemistry, Hefei National Laboratory for Physical Sciences
at the Microscale, iChem (Collaborative Innovation Center of Chemistry
for Energy Materials), Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Shiyong Liu
- CAS Key Laboratory of Soft
Matter Chemistry, Hefei National Laboratory for Physical Sciences
at the Microscale, iChem (Collaborative Innovation Center of Chemistry
for Energy Materials), Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026, China
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Fairbanks BD, Gunatillake PA, Meagher L. Biomedical applications of polymers derived by reversible addition - fragmentation chain-transfer (RAFT). Adv Drug Deliv Rev 2015; 91:141-52. [PMID: 26050529 DOI: 10.1016/j.addr.2015.05.016] [Citation(s) in RCA: 98] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2015] [Revised: 05/25/2015] [Accepted: 05/27/2015] [Indexed: 11/19/2022]
Abstract
RAFT- mediated polymerization, providing control over polymer length and architecture as well as facilitating post polymerization modification of end groups, has been applied to virtually every facet of biomedical materials research. RAFT polymers have seen particularly extensive use in drug delivery research. Facile generation of functional and telechelic polymers permits straightforward conjugation to many therapeutic compounds while synthesis of amphiphilic block copolymers via RAFT allows for the generation of self-assembled structures capable of carrying therapeutic payloads. With the large and growing body of literature employing RAFT polymers as drug delivery aids and vehicles, concern over the potential toxicity of RAFT derived polymers has been raised. While literature exploring this complication is relatively limited, the emerging consensus may be summed up in three parts: toxicity of polymers generated with dithiobenzoate RAFT agents is observed at high concentrations but not with polymers generated with trithiocarbonate RAFT agents; even for polymers generated with dithiobenzoate RAFT agents, most reported applications call for concentrations well below the toxicity threshold; and RAFT end-groups may be easily removed via any of a variety of techniques that leave the polymer with no intrinsic toxicity attributable to the mechanism of polymerization. The low toxicity of RAFT-derived polymers and the ability to remove end groups via straightforward and scalable processes make RAFT technology a valuable tool for practically any application in which a polymer of defined molecular weight and architecture is desired.
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Affiliation(s)
- Benjamin D Fairbanks
- CSIRO Manufacturing Flagship, Ian Wark Laboratories, Clayton, VIC 3168, Australia; Chemical and Biological Engineering, University of Colorado, Boulder, CO, USA 80309-0596.
| | | | - Laurence Meagher
- CSIRO Manufacturing Flagship, Ian Wark Laboratories, Clayton, VIC 3168, Australia; Monash Institute for Medical Engineering and Department of Materials Science and Engineering, Monash University, PO Box 69M, VIC, 3800, Australia.
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18
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Xue Y, Zhang SS, Cui K, Huang J, Zhao QL, Lan P, Cao SK, Ma Z. New polymethylene-based AB2 star copolymers synthesized via a combination of polyhomologation of ylides and atom transfer radical polymerization. RSC Adv 2015. [DOI: 10.1039/c4ra14504f] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Polymethylene-based AB2 star copolymers were synthesized. PM-b-(PS)2 porous films and particles were fabricated via static breath-figure process and electrospraying, respectively.
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Affiliation(s)
- Yang Xue
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai
- P. R. China
| | - Shuang-Shuang Zhang
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai
- P. R. China
| | - Kun Cui
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai
- P. R. China
| | - Jin Huang
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai
- P. R. China
| | - Qiao-Ling Zhao
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai
- P. R. China
| | - Ping Lan
- Jiaxing University
- Jiaxing
- P. R. China
| | - Shao-Kui Cao
- School of Materials and Engineering
- Zhengzhou University
- Zhengzhou
- P. R. China
| | - Zhi Ma
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai
- P. R. China
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19
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Crucho CIC. Stimuli-responsive polymeric nanoparticles for nanomedicine. ChemMedChem 2014; 10:24-38. [PMID: 25319803 DOI: 10.1002/cmdc.201402290] [Citation(s) in RCA: 95] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2014] [Revised: 09/17/2014] [Indexed: 12/28/2022]
Abstract
Nature continues to be the ultimate in nanotechnology, where polymeric nanometer-scale architectures play a central role in biological systems. Inspired by the way nature forms functional supramolecular assemblies, researchers are trying to make nanostructures and to incorporate these into macrostructures as nature does. Recent advances and progress in nanoscience have demonstrated the great potential that nanomaterials have for applications in healthcare. In the realm of drug delivery, nanomaterials have been used in vivo to protect the drug entity in the systemic circulation, ensuring reproducible absorption of bioactive molecules that do not naturally penetrate biological barriers, restricting drug access to specific target sites. Several building blocks have been used in the formulation of nanoparticles. Thus, stability, drug release, and targeting can be tailored by surface modification. Herein the state of the art of stimuli-responsive polymeric nanoparticles are reviewed. Such systems are able to control drug release by reacting to naturally occurring or external applied stimuli. Special attention is paid to the design and nanoparticle formulation of these so-called smart drug-delivery systems. Future strategies for further developments of a promising controlled drug delivery responsive system are also outlined.
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Affiliation(s)
- Carina I C Crucho
- Department of Chemistry REQUIMTE/CQFB, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica (Portugal).
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Koay YC, McConnell JR, Wang Y, Kim SJ, Buckton LK, Mansour F, McAlpine SR. Chemically accessible hsp90 inhibitor that does not induce a heat shock response. ACS Med Chem Lett 2014; 5:771-6. [PMID: 25050163 DOI: 10.1021/ml500114p] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2014] [Accepted: 05/13/2014] [Indexed: 02/01/2023] Open
Abstract
Recent cancer therapies have focused on targeting biology networks through a single regulatory protein. Heat shock protein 90 (hsp90) is an ideal oncogenic target as it regulates over 400 client proteins and cochaperones. However, clinical inhibitors of hsp90 have had limited success; the primary reason being that they induce a heat shock response. We describe the synthesis and biological evaluation of a new hsp90 inhibitor, SM253. The previous generation on which SM253 is based (SM145) has poor overall synthetic yields, low solubility, and micromolar cytotoxicity. By comparison SM253 has relatively high overall yields, good aqueous solubility, and is more cytotoxic than its parent compound. Verification that hsp90 is SM253's target was accomplished using pull-down and protein folding assays. SM253 is superior to both SM145 and the clinical candidate 17-AAG as it decreases proteins related to the heat shock response by 2-fold, versus a 2-4-fold increase observed when cells are treated with 17-AAG.
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Affiliation(s)
- Yen Chin Koay
- The University of New South Wales, Sydney, NSW 2052, Australia
| | | | - Yao Wang
- The University of New South Wales, Sydney, NSW 2052, Australia
| | - Seong Jong Kim
- The University of New South Wales, Sydney, NSW 2052, Australia
| | | | - Flora Mansour
- The University of New South Wales, Sydney, NSW 2052, Australia
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Wei X, Moad G, Muir BW, Rizzardo E, Rosselgong J, Yang W, Thang SH. An Arm-First Approach to Cleavable Mikto-Arm Star Polymers by RAFT Polymerization. Macromol Rapid Commun 2014; 35:840-5. [DOI: 10.1002/marc.201300879] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2013] [Revised: 12/18/2013] [Indexed: 12/19/2022]
Affiliation(s)
- Xiaohu Wei
- State Key Laboratory of Chemical Resource Engineering, College of Materials Science and Engineering, Beijing University of Chemical Technology; Beijing 100029 China
- CSIRO Materials Science and Engineering, Bayview Avenue; Clayton Victoria 3168 Australia
| | - Graeme Moad
- CSIRO Materials Science and Engineering, Bayview Avenue; Clayton Victoria 3168 Australia
| | - Benjamin W. Muir
- CSIRO Materials Science and Engineering, Bayview Avenue; Clayton Victoria 3168 Australia
| | - Ezio Rizzardo
- CSIRO Materials Science and Engineering, Bayview Avenue; Clayton Victoria 3168 Australia
| | - Julien Rosselgong
- CSIRO Materials Science and Engineering, Bayview Avenue; Clayton Victoria 3168 Australia
| | - Wantai Yang
- State Key Laboratory of Chemical Resource Engineering, College of Materials Science and Engineering, Beijing University of Chemical Technology; Beijing 100029 China
| | - San H. Thang
- CSIRO Materials Science and Engineering, Bayview Avenue; Clayton Victoria 3168 Australia
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