1
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Cao Z, Zuo X, Liu X, Xu G, Yong KT. Recent progress in stimuli-responsive polymeric micelles for targeted delivery of functional nanoparticles. Adv Colloid Interface Sci 2024; 330:103206. [PMID: 38823215 DOI: 10.1016/j.cis.2024.103206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Revised: 05/20/2024] [Accepted: 05/27/2024] [Indexed: 06/03/2024]
Abstract
Stimuli-responsive polymeric micelles have emerged as a revolutionary approach for enhancing the in vivo stability, biocompatibility, and targeted delivery of functional nanoparticles (FNPs) in biomedicine. This article comprehensively reviews the preparation methods of these polymer micelles, detailing the innovative strategies employed to introduce stimulus responsiveness and surface modifications essential for precise targeting. We delve into the breakthroughs in utilizing these micelles to selectively deliver various FNPs including magnetic nanoparticles, upconversion nanoparticles, gold nanoparticles, and quantum dots, highlighting their transformative impact in the biomedical realm. Concluding, we present an insight into the current research landscape, addressing the challenges at hand, and envisioning the future trajectory in this burgeoning domain. Join us as we navigate the exciting confluence of polymer science and nanotechnology in reshaping biomedical solutions.
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Affiliation(s)
- Zhonglin Cao
- College of Materials Science and Engineering, Guizhou Minzu University, Guiyang 550025, China
| | - Xiaoling Zuo
- College of Materials Science and Engineering, Guizhou Minzu University, Guiyang 550025, China
| | - Xiaochen Liu
- School of Biomedical Engineering, The University of Sydney, Sydney, New South Wales 2006, Australia; The Biophotonics and Mechano-Bioengineering Lab, The University of Sydney, Sydney, New South Wales 2006, Australia
| | - Gaixia Xu
- Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, School of Biomedical Engineering, Shenzhen University, Shenzhen 518060, China.
| | - Ken-Tye Yong
- School of Biomedical Engineering, The University of Sydney, Sydney, New South Wales 2006, Australia; The Biophotonics and Mechano-Bioengineering Lab, The University of Sydney, Sydney, New South Wales 2006, Australia.
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2
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Dey S, Mondal A, Aash A, Mukherjee R, Kolay S, Murmu N, Murmu N, Giri B, Molla MR. Poly-β-thioester-Based Cross-Linked Nanocarrier for Cancer Cell Selectivity over Normal Cells and Cellular Apoptosis by Triggered Release of Parthenolide, an Anticancer Drug. ACS APPLIED BIO MATERIALS 2024; 7:1214-1228. [PMID: 38326023 DOI: 10.1021/acsabm.3c01121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2024]
Abstract
Breast cancer is the most prevalent and aggressive type of cancer, causing high mortality rates in women globally. Many drawbacks and side effects of the current chemotherapy force us to develop a robust chemotherapeutic system that can deal with off-target hazards and selectively combat cancer growth, invasiveness, and cancer-initiating cells. Here, a pH-responsive cross-linked nanocarrier (140-160 nm) endowed with poly-β-thioester functionality (CBAPTL) has been sketched and fabricated for noncovalent firm encapsulation of anticancer drug, parthenolide (PTL) at physiological pH (7.4), which enables sustain release of PTL at relevant endosomal pH (∼5.0-5.3). For this, a bolaamphiphilic molecule integrated with β-thioester and acrylate functionality was synthesized to fabricate the pH-responsive poly-β-thioester-based cross-linked nanocarrier via Michael addition click reactions in water. The poly-β-thioester functionality of CBAPTL hydrolyzes at endosomal acidic conditions, thus leading to the selective release of PTL inside the cancer cell. Cross-linked nanocarriers exhibit high serum stability, dilution insensitivity, and targeted cellular uptake at tumor microenvironment (TME), contrasting normal cells. In vitro study using human MCF-7 breast cancer cells demonstrated that CBAPTL exhibited selective cytotoxicity, reduced clonogenic potential, increased reactive oxygen species (ROS) generation, and arrested the progression of the cell cycle at the G0/G1 phase efficiently. CBAPTL induced apoptosis via downregulating pro-proliferative protein Bcl-2 and upregulating proapoptotic proteins p53, BAD, p21, and cleaved PARP-1. CBAPTL inhibited proliferating signaling by suppressing AKT phosphorylation and p38 expression. CBAPTL also blocked the invasion and migration of MCF-7 cells. CBAPTL effectively inhibits primary and secondary mammosphere formation, thereby preventing cancer-initiating cells' growth. Conversely, CBAPTL has negligible effect on human red blood cells (RBCs) and peripheral blood mononuclear cells (PBMCs). These findings highlight the superior efficacy of CBAPTL compared to PTL alone in suppressing cancer cell growth, inducing apoptosis, and preventing invasiveness of MCF-7 cells. Thus, CBAPTL could be considered a possible selective chemotherapeutic cargo against breast cancer without affecting normal cells.
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Affiliation(s)
- Sananda Dey
- Department of Physiology, University of Gour Banga, Malda 732103, West Bengal, India
| | - Arun Mondal
- Department of Chemistry, University of Calcutta, Kolkata 700009, West Bengal, India
| | - Asmita Aash
- Department of Chemistry, University of Calcutta, Kolkata 700009, West Bengal, India
| | - Rimi Mukherjee
- Signal Transduction and Biogenic Amines, Chittaranjan National Cancer Institute, Kolkata 700026, West Bengal, India
| | - Soumya Kolay
- Department of Chemistry, University of Calcutta, Kolkata 700009, West Bengal, India
| | - Nensina Murmu
- Department of Physiology, University of Gour Banga, Malda 732103, West Bengal, India
| | - Nabendu Murmu
- Signal Transduction and Biogenic Amines, Chittaranjan National Cancer Institute, Kolkata 700026, West Bengal, India
| | - Biplab Giri
- Department of Physiology, University of Gour Banga, Malda 732103, West Bengal, India
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3
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Bhadran A, Polara H, Calubaquib EL, Wang H, Babanyinah GK, Shah T, Anderson PA, Saleh M, Biewer MC, Stefan MC. Reversible Cross-linked Thermoresponsive Polycaprolactone Micelles for Enhanced Stability and Controlled Release. Biomacromolecules 2023; 24:5823-5835. [PMID: 37963215 DOI: 10.1021/acs.biomac.3c00832] [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: 11/16/2023]
Abstract
Thermoresponsive amphiphilic poly(ε-caprolactone)s (PCL)s are excellent candidates for drug delivery due to their biodegradability, biocompatibility, and controlled release. However, the thermoresponsivity of modified PCL can often lead to premature drug release because their lower critical solution temperature (LCST) is close to physiological temperature conditions. To address this issue, we developed a novel approach that involves functionalizing redox-responsive lipoic acid to the hydrophobic block of PCL. Lipoic acid has disulfide bonds that undergo reversible cross-linking after encapsulating the drug. Herein, we synthesized an ether-linked propargyl-substituted PCL as the hydrophobic block of an amphiphilic copolymer along with unsubstituted PCL. The propargyl group was used to attach lipoic acid through a postpolymerization modification reaction. The hydrophilic block is composed of an ether-linked, thermoresponsive tri(ethylene glycol)-substituted PCL. Anticancer drug doxorubicin (DOX) was encapsulated within the core of the micelles and induced cross-linking in the presence of a reducing agent, dithiothreitol. The developed micelles are thermodynamically stable and demonstrated thermoresponsivity with an LCST value of 37.5 °C but shifted to 40.5 °C after cross-linking. The stability and release of both uncross-linked (LA-PCL) and cross-linked (CLA-PCL) micelles were studied at physiological temperatures. The results indicated that CLA-PCL was stable, and only 35% release was observed after 46 h at 37 °C while LA-PCL released more than 70% drug at the same condition. Furthermore, CLA-PCL was able to release a higher amount of DOX in the presence of glutathione and above the LCST condition (42 °C). Cytotoxicity experiments revealed that CLA-PCL micelles are more toxic toward MDA-MB-231 breast cancer cells at 42 °C than at 37 °C, which supported the thermoresponsive release of the drug. These results indicate that the use of reversible cross-linking is a great approach toward synthesizing stable thermoresponsive micelles with reduced premature drug leakage.
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Affiliation(s)
- Abhi Bhadran
- Department of Chemistry and Biochemistry, University of Texas at Dallas, Richardson, Texas 75080, United States
| | - Himanshu Polara
- Department of Chemistry and Biochemistry, University of Texas at Dallas, Richardson, Texas 75080, United States
| | - Erika L Calubaquib
- Department of Chemistry and Biochemistry, University of Texas at Dallas, Richardson, Texas 75080, United States
| | - Hanghang Wang
- Department of Chemistry and Biochemistry, University of Texas at Dallas, Richardson, Texas 75080, United States
| | - Godwin K Babanyinah
- Department of Chemistry and Biochemistry, University of Texas at Dallas, Richardson, Texas 75080, United States
| | - Tejas Shah
- Department of Chemistry and Biochemistry, University of Texas at Dallas, Richardson, Texas 75080, United States
| | - Paul Alexander Anderson
- Department of Chemistry and Biochemistry, University of Texas at Dallas, Richardson, Texas 75080, United States
| | - Mohammad Saleh
- Department of Chemistry and Biochemistry, University of Texas at Dallas, Richardson, Texas 75080, United States
| | - Michael C Biewer
- Department of Chemistry and Biochemistry, University of Texas at Dallas, Richardson, Texas 75080, United States
| | - Mihaela C Stefan
- Department of Chemistry and Biochemistry, University of Texas at Dallas, Richardson, Texas 75080, United States
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4
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Han Z, Li Z, Raveendran R, Farazi S, Cao C, Chapman R, Stenzel MH. Peptide-Conjugated Micelles Make Effective Mimics of the TRAIL Protein for Driving Apoptosis in Colon Cancer. Biomacromolecules 2023; 24:5046-5057. [PMID: 37812059 DOI: 10.1021/acs.biomac.3c00668] [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: 10/10/2023]
Abstract
Tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) drives apoptosis selectively in cancer cells by clustering death receptors (DR4 and DR5). While it has excellent in vitro selectivity and toxicity, the TRAIL protein has a very low circulation half-life in vivo, which has hampered clinical development. Here, we developed core-cross-linked micelles that present multiple copies of a TRAIL-mimicking peptide at its surface. These micelles successfully induce apoptosis in a colon cancer cell line (COLO205) via DR4/5 clustering. Micelles with a peptide density of 15% (roughly 1 peptide/45 nm2) displayed the strongest activity with an IC50 value of 0.8 μM (relative to peptide), demonstrating that the precise spatial arrangement of ligands imparted by a protein such as a TRAIL may not be necessary for DR4/5/signaling and that a statistical network of monomeric ligands may suffice. As micelles have long circulation half-lives, we propose that this could provide a potential alternative drug to TRAIL and stimulate the use of micelles in other membrane receptor clustering networks.
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Affiliation(s)
- Zifei Han
- Centre for Advanced Macromolecular Design, School of Chemistry, UNSW Sydney, Kensington, NSW 2052, Australia
| | - Zihao Li
- Centre for Advanced Macromolecular Design, School of Chemistry, UNSW Sydney, Kensington, NSW 2052, Australia
| | - Radhika Raveendran
- Centre for Advanced Macromolecular Design, School of Chemistry, UNSW Sydney, Kensington, NSW 2052, Australia
| | - Shegufta Farazi
- Centre for Advanced Macromolecular Design, School of Chemistry, UNSW Sydney, Kensington, NSW 2052, Australia
| | - Cheng Cao
- Centre for Advanced Macromolecular Design, School of Chemistry, UNSW Sydney, Kensington, NSW 2052, Australia
| | - Robert Chapman
- School of Environmental and Life Sciences, University of Newcastle, Callaghan, NSW 2308, Australia
| | - Martina H Stenzel
- Centre for Advanced Macromolecular Design, School of Chemistry, UNSW Sydney, Kensington, NSW 2052, Australia
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5
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WIBOWO AA, BÜTÜN V. pH-responsive intermediary layer cross-linked micelles from zwitterionic triblock copolymers and investigation of their drug-release behaviors. Turk J Chem 2023; 47:1103-1115. [PMID: 38173758 PMCID: PMC10760816 DOI: 10.55730/1300-0527.3597] [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: 04/07/2023] [Revised: 10/31/2023] [Accepted: 09/30/2023] [Indexed: 01/05/2024] Open
Abstract
ABC-type triblock copolymers, namely poly[(ethylene glycol)methyl ether]-block-poly(tert-butyl methacrylate)-block-poly[2-N-(diisopropylamino)ethyl methacrylate] (MPEG-b-PBuMA-b-PDPA), were first synthesized and then the middle blocks were successfully converted into poly(methacrylic acid) to obtain MPEG-b-PMAA-b-PDPA zwitterionic triblock copolymers. These block copolymers were soluble in water and formed micellar aggregates with complex cores via hydrogen bonding interactions between MPEG and PMAA blocks below pH 4.0. When the pH was between 5.0 and 7.0, due to charge compensation between partially protonated PDPA and partially ionized PMAA blocks, micelles with polyion complex cores were observed. If the solution pH was above 8.0, deprotonation of tertiary amine groups provided a hydrophobic character to the PDPA block, which resulted in the formation of PDPA-core micelles while MPEG/anionic PMAA hybrid blocks formed hydrated coronas. Intermediary layer cross-linked (ILCL) micelles from PDPA-core micelles were also prepared by cross-linking the inner PMAA shell. The hydrophobic drug dipyridamole (DIP) was used to investigate the release profile of ILCL micelles. DIP can be loaded to the PDPA cores of the micelles in basic aqueous media. An increase in the degree of cross-linking causes slower release for the model drug. It was concluded that the more complex matrix formation in the intermediary layer of the micelles via cross-linking retards the drug release from the core.
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Affiliation(s)
- Agung Ari WIBOWO
- Department of Polymer Science and Technology, Institute of Science, Eskişehir Osmangazi University, Meşelik Campus, Eskişehir,
Turkiye
| | - Vural BÜTÜN
- Department of Polymer Science and Technology, Institute of Science, Eskişehir Osmangazi University, Meşelik Campus, Eskişehir,
Turkiye
- Department of Chemistry, Faculty of Science, Eskişehir Osmangazi University, Eskişehir,
Turkiye
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6
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Santra S, Das S, Sengupta A, Molla MR. Tumor acidity-induced surface charge modulation in covalent nanonetworks for activated cellular uptake: targeted delivery of anticancer drugs and selective cancer cell death. Biomater Sci 2023; 11:5549-5559. [PMID: 37401615 DOI: 10.1039/d3bm00491k] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/05/2023]
Abstract
A β-thioester and tertiary amine based covalently cross-linked nanoassembly coined as a nanonetwork (NN) endowed with dual pH responsive features (tumor acidity induced surface charge modulation and endosomal pH triggered controlled degradation) has been designed and synthesized for stable sequestration and sustained release of drug molecules in response to endosomal pH. An amphiphile integrated with tertiary amine and acrylate (ATA) functionalities was synthesized to fabricate the nanonetwork. This amphiphile showed entropically driven self-assembly and micellar nanostructures (nanoassemblies), which can sequester hydrophobic drug molecules at neutral pH. To further stabilize the nanoassemblies and the sequestered drug molecules even below its critical aggregation concentration (CAC), the micellar core was cross-linked via the thiol-acrylate Michael addition click reaction to generate multiple copies of acid labile β-thioester functionalities in the core, which undergo slow hydrolysis at endosomal pH (∼5.0), thus enabling sustained release of the anti-cancer drug doxorubicin at endosomal pH. The nanonetworks showed a significant decrease in drug leakage compared to the nanoassemblies (NAs), which was also justified by a low leakage coefficient calculated from the fluorescence resonance energy transfer experiment. The NN also exhibited dilution insensitivity and high serum stability, whereas the NA disassembled upon dilution and during serum treatment. The biological evaluation revealed tumor extracellular matrix pH (∼6.4-6.8) induced surface charge modulation and cancer cell (HeLa) selective activated cellular uptake of the doxorubicin loaded nanonetwork (NN-DOX). In contrast, the benign nature of NN-DOX towards normal cells (H9c2) suggests excellent cell specificity. Thus, we believe that the ease of synthesis, nanonetwork fabrication reproducibility, robust stability, smart nature of tumor microenvironment sensitive surface charge modulation, boosted tumoral-cell uptake, and triggered drug release will make this system a potential nanomedicine for chemotherapeutic treatments.
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Affiliation(s)
- Subrata Santra
- Department of Chemistry, University of Calcutta, 92 A. P. C. Road, Kolkata-700009, India.
| | - Shreya Das
- Department of Life Science & Biotechnology, Jadavpur University, Kolkata-700032, India
| | - Arunima Sengupta
- Department of Life Science & Biotechnology, Jadavpur University, Kolkata-700032, India
| | - Mijanur Rahaman Molla
- Department of Chemistry, University of Calcutta, 92 A. P. C. Road, Kolkata-700009, India.
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7
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Jazani AM, Schild DJ, Sobieski J, Hu X, Matyjaszewski K. Visible Light-ATRP Driven by Tris(2-Pyridylmethyl)Amine (TPMA) Impurities in the Open Air. Macromol Rapid Commun 2023; 44:e2200855. [PMID: 36471106 DOI: 10.1002/marc.202200855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Revised: 11/29/2022] [Indexed: 12/12/2022]
Abstract
Atom transfer radical polymerization (ATRP) of oligo(ethylene oxide) monomethyl ether methacrylate (OEOMA500 ) in water is enabled using CuBr2 with tris(2-pyridylmethyl)amine (TPMA) as a ligand under blue or green-light irradiation without requiring any additional reagent, such as a photo-reductant, or the need for prior deoxygenation. Polymers with low dispersity (Đ = 1.18-1.25) are synthesized at high conversion (>95%) using TPMA from three different suppliers, while no polymerization occurred with TPMA is synthesized and purified in the laboratory. Based on spectroscopic studies, it is proposed that TPMA impurities (i.e., imine and nitrone dipyridine), which absorb blue and green light, can act as photosensitive co-catalyst(s) in a light region where neither pure TPMA nor [(TPMA)CuBr]+ absorbs light.
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Affiliation(s)
- Arman Moini Jazani
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, PA, 15213, USA
| | - Dirk J Schild
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, PA, 15213, USA
| | - Julian Sobieski
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, PA, 15213, USA
| | - Xiaolei Hu
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, PA, 15213, USA
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8
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Poellmann MJ, Javius-Jones K, Hopkins C, Lee JW, Hong S. Dendritic-Linear Copolymer and Dendron Lipid Nanoparticles for Drug and Gene Delivery. Bioconjug Chem 2022; 33:2008-2017. [PMID: 35512322 DOI: 10.1021/acs.bioconjchem.2c00128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Polymers constitute a diverse class of macromolecules that have demonstrated their unique advantages to be utilized for drug or gene delivery applications. In particular, polymers with a highly ordered, hyperbranched structure─"dendrons"─offer significant benefits to the design of such nanomedicines. The incorporation of dendrons into block copolymer micelles can endow various unique properties that are not typically observed from linear polymer counterparts. Specifically, the dendritic structure induces the conical shape of unimers that form micelles, thereby improving the thermodynamic stability and achieving a low critical micelle concentration (CMC). Furthermore, through a high density of highly ordered functional groups, dendrons can enhance gene complexation, drug loading, and stimuli-responsive behavior. In addition, outward-branching dendrons can support a high density of nonfouling polymers, such as poly(ethylene glycol), for serum stability and variable densities of multifunctional groups for multivalent cellular targeting and interactions. In this paper, we review the design considerations for dendron-lipid nanoparticles and dendron micelles formed from amphiphilic block copolymers intended for gene transfection and cancer drug delivery applications. These technologies are early in preclinical development and, as with other nanomedicines, face many obstacles on the way to clinical adoption. Nevertheless, the utility of dendron micelles for drug delivery remains relatively underexplored, and we believe there are significant and dramatic advancements to be made in tumor targeting with these platforms.
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Affiliation(s)
- Michael J Poellmann
- Pharmaceutical Sciences Division, School of Pharmacy, University of Wisconsin, Madison, Wisconsin 53705, United States
| | - Kaila Javius-Jones
- Pharmaceutical Sciences Division, School of Pharmacy, University of Wisconsin, Madison, Wisconsin 53705, United States
| | - Caroline Hopkins
- Pharmaceutical Sciences Division, School of Pharmacy, University of Wisconsin, Madison, Wisconsin 53705, United States
| | - Jin Woong Lee
- Pharmaceutical Sciences Division, School of Pharmacy, University of Wisconsin, Madison, Wisconsin 53705, United States
| | - Seungpyo Hong
- Pharmaceutical Sciences Division, School of Pharmacy, University of Wisconsin, Madison, Wisconsin 53705, United States.,Wisconsin Center for NanoBioSystems, University of Wisconsin, Madison, Wisconsin 53705, United States.,Yonsei Frontier Lab and Department of Pharmacy, Yonsei University, Seoul 03722, Republic of Korea
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9
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Lu YC, Hsu YT, Yang TY, Liou IC, Wang SW, Huang PC, Lee JJ, Lai LL, Hsu HF. Converting non-Mesogenic to Mesogenic Stacking of Amino- s-Triazine-Based Dendrons with p-CN Phenyl Unit by Eliminating Peripheral Dipole. NANOMATERIALS 2022; 12:nano12020185. [PMID: 35055204 PMCID: PMC8782037 DOI: 10.3390/nano12020185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 12/20/2021] [Accepted: 12/31/2021] [Indexed: 12/04/2022]
Abstract
Three new amino-s-triazine-based dendrons, 1a, 1b, and 1c, containing an aryl-CN moiety in the dendritic skeleton were prepared in 72–81% yields (1a: R1 = − N(n-C8H17)2, R2 = n-OC8H17, 1b: R1 = R2 = − N(n-C8H17)2, 1c: R1 = − N(n-C8H17)2, R2 = − N(n-C4H9)2). Dendrons 1a with N(n-C8H17)2 and n-OC8H17 peripheral substituents, surprisingly, did not show any mesogenic phase during the thermal process. However, non-mesogenic 1a can be converted to mesogenic 1b or 1c by eliminating the peripheral dipole arising from the alkoxy substituent; dendron 1b only comprising the same N(n-C8H17)2 peripheral groups showed a ~25 °C mesogenic range on heating and ~108 °C mesogenic range on cooling. In contrast, dendron 1c possessing different N(n-CmH2m+1)2 (m = 8 versus m = 4) peripheral units, having similar stacking as 1b, exhibited a columnar phase on thermal treatment, but its mesogenic range (~9 and ~66 °C on heating and cooling, respectively) was much narrower than that of 1b, attributed to 1c’s less flexible alkyl chains in the peripheral part of dendron. Dendron 1a with the alkoxy substituent in the peripheral skeleton, creating additional dipole correspondingly, thus, leads to the dendritic molecules having a non-mesogenic stacking. Without the peripheral dipole for intermolecular side-by-side interaction, dendrons 1b and 1c exhibit a columnar phase on thermal treatment because of the vibration from the peripheral alkyl chain.
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Affiliation(s)
- Yao-Chih Lu
- Department of Applied Chemistry, National Chi Nan University, No. 1 University Rd., Puli, Nantou 545, Taiwan; (Y.-C.L.); (T.-Y.Y.); (I.-C.L.); (S.-W.W.)
| | - Yu-Tsz Hsu
- Department of Chemistry, Tamkang University, No. 151, Yingzhuan Rd., New Taipei City 251, Taiwan;
| | - Tsung-Yen Yang
- Department of Applied Chemistry, National Chi Nan University, No. 1 University Rd., Puli, Nantou 545, Taiwan; (Y.-C.L.); (T.-Y.Y.); (I.-C.L.); (S.-W.W.)
| | - I-Chun Liou
- Department of Applied Chemistry, National Chi Nan University, No. 1 University Rd., Puli, Nantou 545, Taiwan; (Y.-C.L.); (T.-Y.Y.); (I.-C.L.); (S.-W.W.)
| | - Sheng-Wei Wang
- Department of Applied Chemistry, National Chi Nan University, No. 1 University Rd., Puli, Nantou 545, Taiwan; (Y.-C.L.); (T.-Y.Y.); (I.-C.L.); (S.-W.W.)
| | - Po-Chia Huang
- National Synchrotron Radiation Research Center, No. 101, Hsin-Ann Rd., Hsinchu 300, Taiwan; (P.-C.H.); (J.-J.L.)
| | - Jey-Jau Lee
- National Synchrotron Radiation Research Center, No. 101, Hsin-Ann Rd., Hsinchu 300, Taiwan; (P.-C.H.); (J.-J.L.)
| | - Long-Li Lai
- Department of Applied Chemistry, National Chi Nan University, No. 1 University Rd., Puli, Nantou 545, Taiwan; (Y.-C.L.); (T.-Y.Y.); (I.-C.L.); (S.-W.W.)
- Correspondence: (L.-L.L.); (H.-F.H.)
| | - Hsiu-Fu Hsu
- Department of Chemistry, Tamkang University, No. 151, Yingzhuan Rd., New Taipei City 251, Taiwan;
- Correspondence: (L.-L.L.); (H.-F.H.)
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10
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Altinkok C, Acik G, Karabulut HRF, Ciftci M, Tasdelen MA, Dag A. Synthesis and characterization of bile
acid‐based
polymeric micelle as a drug carrier for doxorubicin. POLYM ADVAN TECHNOL 2021. [DOI: 10.1002/pat.5478] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Cagatay Altinkok
- Faculty of Science and Letters, Department of Chemistry Istanbul Technical University Istanbul Turkey
| | - Gokhan Acik
- Department of Chemistry, Faculty of Science and Letters Piri Reis University Istanbul Turkey
| | | | - Mustafa Ciftci
- Department of Chemistry, Faculty of Engineering and Natural Science Bursa Technical University Bursa Turkey
| | - Mehmet Atilla Tasdelen
- Department of Polymer Materials Engineering, Faculty of Engineering Yalova University Yalova Turkey
| | - Aydan Dag
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy Bezmialem Vakif University Istanbul Turkey
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11
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Boonpavanitchakul K, Bast LK, Bruns N, Magaraphan R. Silk Sericin-Polylactide Protein-Polymer Conjugates as Biodegradable Amphiphilic Materials and Their Application in Drug Release Systems. Bioconjug Chem 2020; 31:2312-2324. [PMID: 32927943 DOI: 10.1021/acs.bioconjchem.0c00399] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Silk sericin (SS) is a byproduct of silk production. In order to transform it into value-added products, sericin can be used as a biodegradable and pH-responsive building block in drug delivery materials. To this end, amphiphilic substances were synthesized via the conjugation of hydrophobic polylactide (PLA) to the hydrophilic sericin using a bis-aryl hydrazone linker. PLA was esterified with a terephthalaldehydic acid to obtain aromatic aldehyde terminated PLA (PLA-CHO). In addition, lysine groups of SS were modified with the linker succinimidyl-6-hydrazino-nicotinamide (S-HyNic). Then, both macromolecules were mixed to form the amphipilic protein-polymer conjugate in buffer-DMF solution. The formation of bis-aryl hydrazone linkages was confirmed and quantified by UV-vis spectroscopy. SS-PLA conjugates self-assembled in water into spherical multicompartment micelles with a diameter of around 100 nm. Doxorubicin (DOX) was selected as a model drug for studying the pH-dependent drug release from SS-PLA nanoparticles. The release rate of the encapsulated drug was slower than that of the free drug and dependent on pH, faster at pH 5.0, and it resulted in a larger cumulative amount of drug released than at physiological pH of 7.4. The SS-PLA conjugate of high PLA branches showed smaller particle size and lower loading capacity than the one with low PLA branches. Both SS-PLA conjugates had negligible cytotoxicity, whereas after loading with DOX, the SS-PLA micelles were highly toxic for the human liver carcinoma immortalized cell line HepG2. Therefore, the SS-based biodegradable amphiphilic material showed great potential as a drug carrier for cancer therapy.
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Affiliation(s)
| | - Livia K Bast
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, 1700, Fribourg, Switzerland.,Department of Pure and Applied Chemistry, University of Strathclyde, Thomas Graham Building, 295 Cathedral Street, Glasgow G1 1XL, United Kingdom
| | - Nico Bruns
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, 1700, Fribourg, Switzerland.,Department of Pure and Applied Chemistry, University of Strathclyde, Thomas Graham Building, 295 Cathedral Street, Glasgow G1 1XL, United Kingdom
| | - Rathanawan Magaraphan
- The Petroleum and Petrochemical College, Chulalongkorn University, Phayathai, Bangkok, 10330, Thailand.,Polymer Processing and Polymer Nanomaterials Research Unit, Chulalongkorn University, Phayathai, Bangkok, 10330. Thailand.,Green Materials for Industrial Application Research Unit, Faculty of Science, Chulalongkorn University, Phayathai, Bangkok, 10330, Thailand
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12
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Mejlsøe S, Kakkar A. Telodendrimers: Promising Architectural Polymers for Drug Delivery. Molecules 2020; 25:E3995. [PMID: 32887285 PMCID: PMC7504730 DOI: 10.3390/molecules25173995] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2020] [Revised: 08/27/2020] [Accepted: 08/28/2020] [Indexed: 02/06/2023] Open
Abstract
Architectural complexity has played a key role in enhancing the efficacy of nanocarriers for a variety of applications, including those in the biomedical field. With the continued evolution in designing macromolecules-based nanoparticles for drug delivery, the combination approach of using important features of linear polymers with dendrimers has offered an advantageous and viable platform. Such nanostructures, which are commonly referred to as telodendrimers, are hybrids of linear polymers covalently linked with different dendrimer generations and backbones. There is considerable variety in selection from widely studied linear polymers and dendrimers, which can help tune the overall composition of the resulting hybrid structures. This review highlights the advances in articulating syntheses of these macromolecules, and the contributions these are making in facilitating therapeutic administration. Limited progress has been made in the design and synthesis of these hybrid macromolecules, and it is through an understanding of their physicochemical properties and aqueous self-assembly that one can expect to fully exploit their potential in drug delivery.
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Affiliation(s)
| | - Ashok Kakkar
- Department of Chemistry, McGill University, 801 Sherbrooke St. West, Montreal, QC H3A 0B8, Canada;
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13
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Shetty C, Noronha A, Pontarelli A, Wilds CJ, Oh JK. Dual-Location Dual-Acid/Glutathione-Degradable Cationic Micelleplexes through Hydrophobic Modification for Enhanced Gene Silencing. Mol Pharm 2020; 17:3979-3989. [DOI: 10.1021/acs.molpharmaceut.0c00767] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Chaitra Shetty
- Department of Chemistry and Biochemistry, Concordia University, Montréal, Québec, Canada H4B 1R6
| | - Anne Noronha
- Department of Chemistry and Biochemistry, Concordia University, Montréal, Québec, Canada H4B 1R6
| | - Alexander Pontarelli
- Department of Chemistry and Biochemistry, Concordia University, Montréal, Québec, Canada H4B 1R6
| | - Christopher J. Wilds
- Department of Chemistry and Biochemistry, Concordia University, Montréal, Québec, Canada H4B 1R6
| | - Jung Kwon Oh
- Department of Chemistry and Biochemistry, Concordia University, Montréal, Québec, Canada H4B 1R6
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14
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Bej R, Achazi K, Haag R, Ghosh S. Polymersome Formation by Amphiphilic Polyglycerol-b-polydisulfide-b-polyglycerol and Glutathione-Triggered Intracellular Drug Delivery. Biomacromolecules 2020; 21:3353-3363. [DOI: 10.1021/acs.biomac.0c00775] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Raju Bej
- School of Applied and Interdisciplinary Sciences, Indian Association for the Cultivation of Science, 2A and 2B Raja S. C. Mullick Road, Kolkata 700032, India
| | - Katharina Achazi
- Institute for Chemistry and Biochemistry, Freie Universität Berlin, Arnimallee 22, 14195 Berlin, Germany
| | - Rainer Haag
- Institute for Chemistry and Biochemistry, Freie Universität Berlin, Takustraße 3, 14195 Berlin, Germany
| | - Suhrit Ghosh
- School of Applied and Interdisciplinary Sciences, Indian Association for the Cultivation of Science, 2A and 2B Raja S. C. Mullick Road, Kolkata 700032, India
- Technical Research Center, Indian Association for the Cultivation of Science, 2A and 2B Raja S. C. Mullick Road, Kolkata 700032, India
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15
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Arslan M, Bolu BS, Sanyal R, Sanyal A. A modular and orthogonally reactive platform for fabrication of polymer–drug conjugates for targeted delivery. Polym Chem 2020. [DOI: 10.1039/d0py01049a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Increasing interest in utilization of polymeric systems in targeted drug delivery has necessitated fabrication of polymers that undergo facile functionalization with targeting groups and therapeutic agents in a modular and orthogonal fashion.
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Affiliation(s)
- Mehmet Arslan
- Department of Chemistry
- Bogazici University
- Istanbul
- Turkey
| | - Burcu Sumer Bolu
- Department of Chemistry
- Bogazici University
- Istanbul
- Turkey
- Center for Life Sciences and Technologies
| | - Rana Sanyal
- Department of Chemistry
- Bogazici University
- Istanbul
- Turkey
- Center for Life Sciences and Technologies
| | - Amitav Sanyal
- Department of Chemistry
- Bogazici University
- Istanbul
- Turkey
- Center for Life Sciences and Technologies
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16
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Sumer Bolu B, Golba B, Sanyal A, Sanyal R. Trastuzumab targeted micellar delivery of docetaxel using dendron–polymer conjugates. Biomater Sci 2020; 8:2600-2610. [DOI: 10.1039/c9bm01764j] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Incorporation of a therapeutic antibody into nanosized drug delivery systems can improve their target specificity.
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Affiliation(s)
- Burcu Sumer Bolu
- Department of Chemistry
- Bogazici University
- Istanbul
- Turkey
- Center for Life Sciences and Technologies
| | - Bianka Golba
- Department of Chemistry
- Bogazici University
- Istanbul
- Turkey
| | - Amitav Sanyal
- Department of Chemistry
- Bogazici University
- Istanbul
- Turkey
- Center for Life Sciences and Technologies
| | - Rana Sanyal
- Department of Chemistry
- Bogazici University
- Istanbul
- Turkey
- Center for Life Sciences and Technologies
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