1
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Xu W, Di Y, Chu S, Wang Z, Long H, Pu L, Ma R, Wang Y. Combination of Chlorambucil and Mercaptopurine Show Effective Anti-Cancer Effects in Mice Model. Int J Nanomedicine 2023; 18:8131-8141. [PMID: 38169995 PMCID: PMC10759911 DOI: 10.2147/ijn.s438742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Accepted: 12/16/2023] [Indexed: 01/05/2024] Open
Abstract
Background Combination therapy employing multiple drugs has been shown to enhance the efficacy of cancer treatment. Chlorambucil (Chl) and 6-mercaptopurine (6MP) are the first-line medicines for chronic lymphocytic leukemia and ovarian cancer. However, both were limited by their short half-life of disintegration, unsatisfactory water solubility, and adverse reactions. Methods In this work, the drug Chl and 6MP were introduced into the polymerized N-(2-hydroxypropyl) methacrylamide (polyHPMA) by pH and glutathione responsive linker to construct the polymer nanodrug delivery system for effective co-delivery. Results The drug load capacities, release, morphology, and cytotoxicity of the pro-drug were systematic. The two drugs showed satisfactory synergism with a combination index of 0.81, and a better ability to induce apoptosis. In and ex vivo fluorescence imaging showed a rapid systemic distribution of the conjugate within mice, majorly metabolized by liver and kidneys and eliminated after 24 hr. No significant pathological damage was observed in the major organs. This polymeric prodrug system holds promise for improved therapeutic efficiency and reduced side effects through the synergistic delivery of various chemotherapeutics. Conclusion The introduction of HPMA as a carrier not only enhanced the solubility and biocompatibilities of Chl and 6 MP but also improved their drug effect. This strategy might be a promising alternative for constructing multi-drug-release system.
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Affiliation(s)
- Weibing Xu
- College of Science, Gansu Agricultural University, Lanzhou, 730000, People’s Republic of China
| | - Yuxin Di
- College of Science, Gansu Agricultural University, Lanzhou, 730000, People’s Republic of China
| | - Shengjing Chu
- College of Science, Gansu Agricultural University, Lanzhou, 730000, People’s Republic of China
| | - Zixuan Wang
- College of Science, Gansu Agricultural University, Lanzhou, 730000, People’s Republic of China
| | - Haitao Long
- College of Science, Gansu Agricultural University, Lanzhou, 730000, People’s Republic of China
| | - Lumei Pu
- College of Science, Gansu Agricultural University, Lanzhou, 730000, People’s Republic of China
| | - Runtian Ma
- College of Science, Gansu Agricultural University, Lanzhou, 730000, People’s Republic of China
| | - Yanwei Wang
- Department of Chemical and Materials Engineering, School of Engineering and Digital Sciences, Nazarbayev University, Astana, 010000, Kazakhstan
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2
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Negut I, Bita B. Polymeric Micellar Systems-A Special Emphasis on "Smart" Drug Delivery. Pharmaceutics 2023; 15:pharmaceutics15030976. [PMID: 36986837 PMCID: PMC10056703 DOI: 10.3390/pharmaceutics15030976] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 03/13/2023] [Accepted: 03/15/2023] [Indexed: 03/30/2023] Open
Abstract
Concurrent developments in anticancer nanotechnological treatments have been observed as the burden of cancer increases every year. The 21st century has seen a transformation in the study of medicine thanks to the advancement in the field of material science and nanomedicine. Improved drug delivery systems with proven efficacy and fewer side effects have been made possible. Nanoformulations with varied functions are being created using lipids, polymers, and inorganic and peptide-based nanomedicines. Therefore, thorough knowledge of these intelligent nanomedicines is crucial for developing very promising drug delivery systems. Polymeric micelles are often simple to make and have high solubilization characteristics; as a result, they seem to be a promising alternative to other nanosystems. Even though recent studies have provided an overview of polymeric micelles, here we included a discussion on the "intelligent" drug delivery from these systems. We also summarized the state-of-the-art and the most recent developments of polymeric micellar systems with respect to cancer treatments. Additionally, we gave significant attention to the clinical translation potential of polymeric micellar systems in the treatment of various cancers.
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Affiliation(s)
- Irina Negut
- National Institute for Laser, Plasma and Radiation Physics, 409 Atomistilor Street, Magurele, 077125 Bucharest, Romania
| | - Bogdan Bita
- National Institute for Laser, Plasma and Radiation Physics, 409 Atomistilor Street, Magurele, 077125 Bucharest, Romania
- Faculty of Physics, University of Bucharest, 077125 Măgurele, Romania
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3
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Wang Q, Atluri K, Tiwari AK, Babu RJ. Exploring the Application of Micellar Drug Delivery Systems in Cancer Nanomedicine. Pharmaceuticals (Basel) 2023; 16:ph16030433. [PMID: 36986532 PMCID: PMC10052155 DOI: 10.3390/ph16030433] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 03/07/2023] [Accepted: 03/08/2023] [Indexed: 03/14/2023] Open
Abstract
Various formulations of polymeric micelles, tiny spherical structures made of polymeric materials, are currently being investigated in preclinical and clinical settings for their potential as nanomedicines. They target specific tissues and prolong circulation in the body, making them promising cancer treatment options. This review focuses on the different types of polymeric materials available to synthesize micelles, as well as the different ways that micelles can be tailored to be responsive to different stimuli. The selection of stimuli-sensitive polymers used in micelle preparation is based on the specific conditions found in the tumor microenvironment. Additionally, clinical trends in using micelles to treat cancer are presented, including what happens to micelles after they are administered. Finally, various cancer drug delivery applications involving micelles are discussed along with their regulatory aspects and future outlooks. As part of this discussion, we will examine current research and development in this field. The challenges and barriers they may have to overcome before they can be widely adopted in clinics will also be discussed.
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Affiliation(s)
- Qi Wang
- Department of Drug Discovery and Development, Auburn University, Auburn, AL 36849, USA
| | - Keerthi Atluri
- Product Development Department, Alcami Corporation, Morrisville, NC 27560, USA
| | - Amit K. Tiwari
- Department of Pharmacology and Experimental Therapeutics, University of Toledo, Toledo, OH 43614, USA
- Department of Cell and Cancer Biology, University of Toledo, Toledo, OH 43614, USA
| | - R. Jayachandra Babu
- Department of Drug Discovery and Development, Auburn University, Auburn, AL 36849, USA
- Correspondence:
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4
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Rybachuk O, Savytska N, Pinet É, Yaminsky Y, Medvediev V. Heterogeneous pHPMA hydrogel promotes neuronal differentiation of bone marrow derived stromal cells in vitroand in vivo. Biomed Mater 2023; 18. [PMID: 36542861 DOI: 10.1088/1748-605x/acadc3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Accepted: 12/21/2022] [Indexed: 12/24/2022]
Abstract
Synthetic hydrogels composed of polymer pore frames are commonly used in medicine, from pharmacologically targeted drug delivery to the creation of bioengineering constructions used in implantation surgery. Among various possible materials, the most common are poly-[N(2-hydroxypropyl)methacrylamide] (pHPMA) derivatives. One of the pHPMA derivatives is biocompatible hydrogel, NeuroGel. Upon contact with nervous tissue, the NeuroGel's structure can support the chemical and physiological conditions of the tissue necessary for the growth of native cells. Owing to the different pore diameters in the hydrogel, not only macromolecules, but also cells can migrate. This study evaluated the differentiation of bone marrow stromal cells (BMSCs) into neurons, as well as the effectiveness of using this biofabricated system in spinal cord injuryin vivo. The hydrogel was populated with BMSCs by injection or rehydration. After cultivation, these fragments (hydrogel + BMSCs) were implanted into the injured rat spinal cord. Fragments were immunostained before implantation and seven months after implantation. During cultivation with the hydrogel, both variants (injection/rehydration) of the BMSCs culture retained their viability and demonstrated a significant number of Ki-67-positive cells, indicating the preservation of their proliferative activity. In hydrogel fragments, BMSCs also maintained their viability during the period of cocultivation and were Ki-67-positive, but in significantly fewer numbers than in the cell culture. In addition, in fragments of hydrogel with grafted BMSCs, both by the injection or rehydration versions, we observed a significant number up to 57%-63.5% of NeuN-positive cells. These results suggest that the heterogeneous pHPMA hydrogel promotes neuronal differentiation of bone marrow-derived stromal cells. Furthermore, these data demonstrate the possible use of NeuroGel implants with grafted BMSCs for implantation into damaged areas of the spinal cord, with subsequent nerve fiber germination, nerve cell regeneration, and damaged segment restoration.
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Affiliation(s)
- Oksana Rybachuk
- Bogomoletz Institute of Physiology NAS of Ukraine, Kyiv, Ukraine.,Institute of Genetic and Regenerative Medicine, M. D. Strazhesko National Scientific Center of Cardiology, Clinical and Regenerative Medicine, NAMS of Ukraine, Kyiv, Ukraine
| | - Natalia Savytska
- Bogomoletz Institute of Physiology NAS of Ukraine, Kyiv, Ukraine.,German Center for Neurodegenerative Diseases, Tübingen, Germany
| | | | - Yurii Yaminsky
- State Institution 'Romodanov Neurosurgery Institute, NAMS of Ukraine', Kyiv, Ukraine
| | - Volodymyr Medvediev
- Bogomoletz Institute of Physiology NAS of Ukraine, Kyiv, Ukraine.,Bogomolets National Medical University, Kyiv, Ukraine
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5
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Hari SK, Gauba A, Shrivastava N, Tripathi RM, Jain SK, Pandey AK. Polymeric micelles and cancer therapy: an ingenious multimodal tumor-targeted drug delivery system. Drug Deliv Transl Res 2023; 13:135-163. [PMID: 35727533 DOI: 10.1007/s13346-022-01197-4] [Citation(s) in RCA: 45] [Impact Index Per Article: 45.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/13/2022] [Indexed: 12/13/2022]
Abstract
Since the beginning of pharmaceutical research, drug delivery methods have been an integral part of it. Polymeric micelles (PMs) have emerged as multifunctional nanoparticles in the current technological era of nanocarriers, and they have shown promise in a range of scientific fields. They can alter the release profile of integrated pharmacological substances and concentrate them in the target zone due to their improved permeability and retention, making them more suitable for poorly soluble medicines. With their ability to deliver poorly soluble chemotherapeutic drugs, PMs have garnered considerable interest in cancer. As a result of their remarkable biocompatibility, improved permeability, and minimal toxicity to healthy cells, while also their capacity to solubilize a wide range of drugs in their micellar core, PMs are expected to be a successful treatment option for cancer therapy in the future. Their nano-size enables them to accumulate in the tumor microenvironment (TME) via the enhanced permeability and retention (EPR) effect. In this review, our major aim is to focus primarily on the stellar applications of PMs in the field of cancer therapeutics along with its mechanism of action and its latest advancements in drug and gene delivery (DNA/siRNA) for cancer, using various therapeutic strategies such as crossing blood-brain barrier, gene therapy, photothermal therapy (PTT), and immunotherapy. Furthermore, PMs can be employed as "smart drug carriers," allowing them to target specific cancer sites using a variety of stimuli (endogenous and exogenous), which improve the specificity and efficacy of micelle-based targeted drug delivery. All the many types of stimulants, as well as how the complex of PM and various anticancer drugs react to it, and their pharmacodynamics are also reviewed here. In conclusion, commercializing engineered micelle nanoparticles (MNPs) for application in therapy and imaging can be considered as a potential approach to improve the therapeutic index of anticancer drugs. Furthermore, PM has stimulated intense interest in research and clinical practice, and in light of this, we have also highlighted a few PMs that have previously been approved for therapeutic use, while the majority are still being studied in clinical trials for various cancer therapies.
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Affiliation(s)
- Sharath Kumar Hari
- Amity Institute of Microbial Technology, Amity University Uttar Pradesh, Noida, Uttar Pradesh, 201303, India
| | - Ankita Gauba
- Amity Institute of Microbial Technology, Amity University Uttar Pradesh, Noida, Uttar Pradesh, 201303, India
| | - Neeraj Shrivastava
- Amity Institute of Microbial Technology, Amity University Uttar Pradesh, Noida, Uttar Pradesh, 201303, India
| | - Ravi Mani Tripathi
- Amity Institute of Nanotechnology, Amity University Uttar Pradesh, Noida, Uttar Pradesh, 201303, India.
| | - Sudhir Kumar Jain
- School of Studies in Microbiology, Vikram University, Ujjain, Madhya Pradesh, 456010, India
| | - Akhilesh Kumar Pandey
- Department of Biological Sciences, Rani Durgavati University, Jabalpur, M.P, 482001, India.,Vikram University, Ujjain, Madhya Pradesh, 456010, India
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6
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Sincari V, Petrova SL, Konefał R, Hruby M, Jäger E. Microwave-assisted RAFT polymerization of N-(2-hydroxypropyl) methacrylamide and its relevant copolymers. REACT FUNCT POLYM 2021. [DOI: 10.1016/j.reactfunctpolym.2021.104875] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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7
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Chytil P, Kostka L, Etrych T. HPMA Copolymer-Based Nanomedicines in Controlled Drug Delivery. J Pers Med 2021; 11:115. [PMID: 33578756 PMCID: PMC7916469 DOI: 10.3390/jpm11020115] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Revised: 02/05/2021] [Accepted: 02/08/2021] [Indexed: 12/12/2022] Open
Abstract
Recently, numerous polymer materials have been employed as drug carrier systems in medicinal research, and their detailed properties have been thoroughly evaluated. Water-soluble polymer carriers play a significant role between these studied polymer systems as they are advantageously applied as carriers of low-molecular-weight drugs and compounds, e.g., cytostatic agents, anti-inflammatory drugs, antimicrobial molecules, or multidrug resistance inhibitors. Covalent attachment of carried molecules using a biodegradable spacer is strongly preferred, as such design ensures the controlled release of the drug in the place of a desired pharmacological effect in a reasonable time-dependent manner. Importantly, the synthetic polymer biomaterials based on N-(2-hydroxypropyl) methacrylamide (HPMA) copolymers are recognized drug carriers with unique properties that nominate them among the most serious nanomedicines candidates for human clinical trials. This review focuses on advances in the development of HPMA copolymer-based nanomedicines within the passive and active targeting into the place of desired pharmacological effect, tumors, inflammation or bacterial infection sites. Specifically, this review highlights the safety issues of HPMA polymer-based drug carriers concerning the structure of nanomedicines. The main impact consists of the improvement of targeting ability, especially concerning the enhanced and permeability retention (EPR) effect.
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Affiliation(s)
| | | | - Tomáš Etrych
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovsky Sq. 2, 162 06 Prague, Czech Republic; (P.C.); (L.K.)
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8
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Li G, Zhao M, Zhang J, Li H, Xu W, Pu L, Shi X. Poly(HPMA)–chlorambucil conjugate nanoparticles: facile fabrication and in vitro anti-cancer activity. NEW J CHEM 2021. [DOI: 10.1039/d1nj03134a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An acid-sensitive poly(HPMA)–Chl conjugate was developed and its antitumor effect towards HepG2 and MCF-7 cells was evaluated.
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Affiliation(s)
- Guichen Li
- College of Science, Gansu Agricultural University, Lanzhou 730000, China
| | - Minzhi Zhao
- College of Science, Gansu Agricultural University, Lanzhou 730000, China
| | - Jia Zhang
- College of Science, Gansu Agricultural University, Lanzhou 730000, China
| | - Haining Li
- Gansu Provincial Cancer Hospital, Lanzhou, 730050, P. R. China
| | - Weibing Xu
- College of Science, Gansu Agricultural University, Lanzhou 730000, China
| | - Lumei Pu
- College of Science, Gansu Agricultural University, Lanzhou 730000, China
| | - Xinhe Shi
- Laboratory Animal Centre, The Second Hospital of Lanzhou University, Lanzhou 730000, China
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9
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Deaton TA, Aydin F, Li NK, Chu X, Dutt M, Yingling YG. Dissipative Particle Dynamics Approaches to Modeling the Self-Assembly and Morphology of Neutral and Ionic Block Copolymers in Solution. FOUNDATIONS OF MOLECULAR MODELING AND SIMULATION 2021. [DOI: 10.1007/978-981-33-6639-8_4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/09/2022]
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10
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Nelemans LC, Gurevich L. Drug Delivery with Polymeric Nanocarriers-Cellular Uptake Mechanisms. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E366. [PMID: 31941006 PMCID: PMC7013754 DOI: 10.3390/ma13020366] [Citation(s) in RCA: 65] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 01/06/2020] [Accepted: 01/09/2020] [Indexed: 12/17/2022]
Abstract
Nanocarrier-based systems hold a promise to become "Dr. Ehrlich's Magic Bullet" capable of delivering drugs, proteins and genetic materials intact to a specific location in an organism down to subcellular level. The key question, however, how a nanocarrier is internalized by cells and how its intracellular trafficking and the fate in the cell can be controlled remains yet to be answered. In this review we survey drug delivery systems based on various polymeric nanocarriers, their uptake mechanisms, as well as the experimental techniques and common pathway inhibitors applied for internalization studies. While energy-dependent endocytosis is observed as the main uptake pathway, the integrity of a drug-loaded nanocarrier upon its internalization appears to be a seldomly addressed problem that can drastically affect the uptake kinetics and toxicity of the system in vitro and in vivo.
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Affiliation(s)
| | - Leonid Gurevich
- Department of Materials and Production, Aalborg University, 9220 Aalborg, Denmark;
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11
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Kubo T, Scheutz GM, Latty TS, Sumerlin BS. Synthesis of functional and boronic acid-containing aliphatic polyesters via Suzuki coupling. Chem Commun (Camb) 2019; 55:5655-5658. [PMID: 31025997 DOI: 10.1039/c9cc01975h] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Imparting additional functionalities along the side chains of polyesters remains a challenge due to the laborious nature of monomer synthesis and limited polymer functionalization methods for polyesters. To address this challenge, a carbon-carbon bond forming reaction was studied to introduce pendent functional groups in polylactides. This functionalization approach was applied for preparing boronic acid-containing polylactides, an unexplored class of polymers.
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Affiliation(s)
- Tomohiro Kubo
- George & Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science & Engineering, Department of Chemistry, University of Florida, PO Box 117200, Gainesville, Florida 32611, USA.
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12
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Sun H, Yang L, Thompson MP, Schara S, Cao W, Choi W, Hu Z, Zang N, Tan W, Gianneschi NC. Recent Advances in Amphiphilic Polymer-Oligonucleotide Nanomaterials via Living/Controlled Polymerization Technologies. Bioconjug Chem 2019; 30:1889-1904. [PMID: 30969752 DOI: 10.1021/acs.bioconjchem.9b00166] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Over the past decade, the field of polymer-oligonucleotide nanomaterials has flourished because of the development of synthetic techniques, particularly living polymerization technologies, which provide access to polymers with well-defined architectures, precise molecular weights, and terminal or side-chain functionalities. Various "living" polymerization methods have empowered chemists with the ability to prepare functional polymer-oligonucleotide conjugates yielding a library of architectures, including linear diblock, comb, star, hyperbranched star, and gel morphologies. Since oligonucleotides are hydrophilic and synthetic polymers can be tailored with hydrophobicity, these amphiphilic polymer-oligonucleotide conjugates are capable of self-assembling into nanostructures with different shapes, leading to many high-value-added biomedical applications, such as drug delivery systems, gene regulation, and 3D-bioprinting. This review aims to highlight the main living polymerization approaches to polymer-oligonucleotide conjugates, including ring-opening metathesis polymerization, atom transfer radical polymerization (ATRP), reversible addition-fragmentation transfer polymerization (RAFT), and ring-opening polymerization of cyclic esters and N-carboxyanhydride. The self-assembly properties and resulting applications of polymer-DNA hybrid materials are highlighted as well.
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Affiliation(s)
- Hao Sun
- Departments of Chemistry, Materials Science & Engineering, and Biomedical Engineering, International Institute for Nanotechnology, and Simpson Querrey Institute , Northwestern University , 2145 Sheridan Road , Evanston , Illinois 60208-3113 , United States
| | - Lu Yang
- Department of Chemistry , University of Florida , P.O. Box 117200, Gainesville , Florida 32611-7200 , United States
| | - Matthew P Thompson
- Departments of Chemistry, Materials Science & Engineering, and Biomedical Engineering, International Institute for Nanotechnology, and Simpson Querrey Institute , Northwestern University , 2145 Sheridan Road , Evanston , Illinois 60208-3113 , United States
| | - Steve Schara
- Departments of Chemistry, Materials Science & Engineering, and Biomedical Engineering, International Institute for Nanotechnology, and Simpson Querrey Institute , Northwestern University , 2145 Sheridan Road , Evanston , Illinois 60208-3113 , United States
| | - Wei Cao
- Departments of Chemistry, Materials Science & Engineering, and Biomedical Engineering, International Institute for Nanotechnology, and Simpson Querrey Institute , Northwestern University , 2145 Sheridan Road , Evanston , Illinois 60208-3113 , United States
| | - Wonmin Choi
- Departments of Chemistry, Materials Science & Engineering, and Biomedical Engineering, International Institute for Nanotechnology, and Simpson Querrey Institute , Northwestern University , 2145 Sheridan Road , Evanston , Illinois 60208-3113 , United States
| | - Ziying Hu
- Departments of Chemistry, Materials Science & Engineering, and Biomedical Engineering, International Institute for Nanotechnology, and Simpson Querrey Institute , Northwestern University , 2145 Sheridan Road , Evanston , Illinois 60208-3113 , United States
| | - Nanzhi Zang
- Departments of Chemistry, Materials Science & Engineering, and Biomedical Engineering, International Institute for Nanotechnology, and Simpson Querrey Institute , Northwestern University , 2145 Sheridan Road , Evanston , Illinois 60208-3113 , United States
| | - Weihong Tan
- Department of Chemistry , University of Florida , P.O. Box 117200, Gainesville , Florida 32611-7200 , United States
| | - Nathan C Gianneschi
- Departments of Chemistry, Materials Science & Engineering, and Biomedical Engineering, International Institute for Nanotechnology, and Simpson Querrey Institute , Northwestern University , 2145 Sheridan Road , Evanston , Illinois 60208-3113 , United States
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13
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Peng J, Xu Q, Ni Y, Zhang L, Cheng Z, Zhu X. Visible light controlled aqueous RAFT continuous flow polymerization with oxygen tolerance. Polym Chem 2019. [DOI: 10.1039/c9py00069k] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
A fast visible light controlled RAFT polymerization system without the prior removal of oxygen was successfully carried out in a continuous tubular reactor with water as a green solvent.
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Affiliation(s)
- Jinying Peng
- Suzhou key Laboratory of Macromolecular Design and Precision Synthesis
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- College of Chemistry
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials
- Chemical Engineering and Materials Science
| | - Qinghua Xu
- Suzhou key Laboratory of Macromolecular Design and Precision Synthesis
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- College of Chemistry
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials
- Chemical Engineering and Materials Science
| | - Yuanyuan Ni
- Suzhou key Laboratory of Macromolecular Design and Precision Synthesis
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- College of Chemistry
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials
- Chemical Engineering and Materials Science
| | - Lifen Zhang
- Suzhou key Laboratory of Macromolecular Design and Precision Synthesis
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- College of Chemistry
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials
- Chemical Engineering and Materials Science
| | - Zhenping Cheng
- Suzhou key Laboratory of Macromolecular Design and Precision Synthesis
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- College of Chemistry
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials
- Chemical Engineering and Materials Science
| | - Xiulin Zhu
- Suzhou key Laboratory of Macromolecular Design and Precision Synthesis
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- College of Chemistry
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials
- Chemical Engineering and Materials Science
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14
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Xu W, Li G, Long H, Fu G, Pu L. Glutathione responsive poly(HPMA) conjugate nanoparticles for efficient 6-MP delivery. NEW J CHEM 2019. [DOI: 10.1039/c9nj02582k] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
GSH-sensitive poly(HPMA)–PTA was developed and its antitumor effect on HepG2 cells was evaluated.
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Affiliation(s)
- Weibing Xu
- College of Science
- Gansu Agriculture University
- Lanzhou 730000
- P. R. China
| | - Guichen Li
- Gansu Provincial Key Laboratory of Aridland Crop Science
- Gansu Agricultural University
- Lanzhou 730070
- China
| | - Haitao Long
- College of Science
- Gansu Agriculture University
- Lanzhou 730000
- P. R. China
| | - Guorui Fu
- College of Science
- Gansu Agriculture University
- Lanzhou 730000
- P. R. China
| | - Lumei Pu
- College of Science
- Gansu Agriculture University
- Lanzhou 730000
- P. R. China
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15
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Tang H, Zhao W, Yu J, Li Y, Zhao C. Recent Development of pH-Responsive Polymers for Cancer Nanomedicine. Molecules 2018; 24:E4. [PMID: 30577475 PMCID: PMC6337262 DOI: 10.3390/molecules24010004] [Citation(s) in RCA: 116] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Revised: 12/14/2018] [Accepted: 12/17/2018] [Indexed: 02/06/2023] Open
Abstract
Cancer remains a leading cause of death worldwide with more than 10 million new cases every year. Tumor-targeted nanomedicines have shown substantial improvements of the therapeutic index of anticancer agents, addressing the deficiencies of conventional chemotherapy, and have had a tremendous growth over past several decades. Due to the pathophysiological characteristics that almost all tumor tissues have lower pH in comparison to normal healthy tissues, among various tumor-targeted nanomaterials, pH-responsive polymeric materials have been one of the most prevalent approaches for cancer diagnosis and treatment. In this review, we summarized the types of pH-responsive polymers, describing their chemical structures and pH-response mechanisms; we illustrated the structure-property relationships of pH-responsive polymers and introduced the approaches to regulating their pH-responsive behaviors; we also highlighted the most representative applications of pH-responsive polymers in cancer imaging and therapy. This review article aims to provide general guidelines for the rational design of more effective pH-responsive nanomaterials for cancer diagnosis and treatment.
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Affiliation(s)
- Houliang Tang
- Department of Chemistry, Southern Methodist University, 3215 Daniel Avenue, Dallas, TX 75275, USA.
| | - Weilong Zhao
- Global Research IT, Merck & Co., Inc., Boston, MA 02210, USA.
| | - Jinming Yu
- Department of Chemical and Biological Engineering, the University of Alabama, Tuscaloosa, AL 35487, USA.
| | - Yang Li
- Boston Children's Hospital, Harvard Medical School, 300 Longwood Avenue, Boston, MA 02115, USA.
| | - Chao Zhao
- Department of Chemical and Biological Engineering, the University of Alabama, Tuscaloosa, AL 35487, USA.
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Tang H, Luan Y, Yang L, Sun H. A Perspective on Reversibility in Controlled Polymerization Systems: Recent Progress and New Opportunities. Molecules 2018; 23:E2870. [PMID: 30400317 PMCID: PMC6278570 DOI: 10.3390/molecules23112870] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Revised: 11/01/2018] [Accepted: 11/02/2018] [Indexed: 12/19/2022] Open
Abstract
The field of controlled polymerization is growing and evolving at unprecedented rates, facilitating polymer scientists to engineer the structure and property of polymer materials for a variety of applications. However, the lack of degradability, particularly in vinyl polymers, is a general concern not only for environmental sustainability, but also for biomedical applications. In recent years, there has been a significant effort to develop reversible polymerization approaches in those well-established controlled polymerization systems. Reversible polymerization typically involves two steps, including (i) forward polymerization, which converts small monomers into macromolecule; and (ii) depolymerization, which is capable of regenerating original monomers. Furthermore, recycled monomers can be repolymerized into new polymers. In this perspective, we highlight recent developments of reversible polymerization in those controlled polymerization systems and offer insight into the promise and utility of reversible polymerization systems. More importantly, the current challenges and future directions to solve those problems are discussed. We hope this perspective can serve as an "initiator" to promote continuing innovations in this fairly new area.
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Affiliation(s)
- Houliang Tang
- School of Materials Science and Engineering, University of Science and Technology Beijing, 30 Xueyuan Road, Haidian District, Beijing 100083, China.
- Department of Chemistry, Southern Methodist University, 3215 Daniel Avenue, Dallas, TX 75275, USA.
| | - Yi Luan
- School of Materials Science and Engineering, University of Science and Technology Beijing, 30 Xueyuan Road, Haidian District, Beijing 100083, China.
| | - Lu Yang
- Department of Chemistry, University of Florida, PO Box 117200, Gainesville, FL 32611-7200, USA.
| | - Hao Sun
- Department of Chemistry, University of Florida, PO Box 117200, Gainesville, FL 32611-7200, USA.
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17
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Fan H, Li P, Li W, Li H, Huang X. Ultrasensitive (Co)polymers Based on Poly(methacrylamide) Structure with Fining-Tunable pH Responsive Value. Molecules 2018; 23:E1870. [PMID: 30060442 PMCID: PMC6222650 DOI: 10.3390/molecules23081870] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Revised: 07/12/2018] [Accepted: 07/15/2018] [Indexed: 11/16/2022] Open
Abstract
Novel pH responsive copolymers with tertiary amine groups were prepared by free radical polymerization with 2-(dialkylamino)ethyl methacrylate monomers. These polymers were pH sensitive with the ability to be responsively fine-tuned in aqueous solution, which was proven through titration, transmittance measurements, and proton nuclear magnetic resonance spectroscopy. The polymers were soluble in water at low pH values, induced by electrostatic repulsion between amine groups, and aggregated above their pKa value due to the hydrophobic effect of the alkyls. The pH responsive values were precisely tuned from 7.4 to 4.8 by increasing the hydrophobic monomer ratio. Our work provides a novel approach for the development of ultrasensitive pH-responsive polymers for application in biomedical materials.
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Affiliation(s)
- Haiming Fan
- Shandong Provincial Key Laboratory of Oilfield Chemistry, School of Petroleum Engineering, China University of Petroleum (East China), Qingdao 266580, China.
| | - Po Li
- Department of Chemistry, Capital Normal University, 105 West 3rd Ring North Rd, Beijing 100048, China.
| | - Wei Li
- Department of Chemistry, Capital Normal University, 105 West 3rd Ring North Rd, Beijing 100048, China.
| | - Hui Li
- Shandong Provincial Key Laboratory of Oilfield Chemistry, School of Petroleum Engineering, China University of Petroleum (East China), Qingdao 266580, China.
| | - Xiaonan Huang
- Department of Chemistry, Capital Normal University, 105 West 3rd Ring North Rd, Beijing 100048, China.
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18
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Yang L, Tang H, Sun H. Progress in Photo-Responsive Polypeptide Derived Nano-Assemblies. MICROMACHINES 2018; 9:E296. [PMID: 30424229 PMCID: PMC6187351 DOI: 10.3390/mi9060296] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Revised: 06/06/2018] [Accepted: 06/11/2018] [Indexed: 12/03/2022]
Abstract
Stimuli-responsive polymeric materials have attracted significant attention in a variety of high-value-added and industrial applications during the past decade. Among various stimuli, light is of particular interest as a stimulus because of its unique advantages, such as precisely spatiotemporal control, mild conditions, ease of use, and tunability. In recent years, a lot of effort towards the synthesis of a biocompatible and biodegradable polypeptide has resulted in many examples of photo-responsive nanoparticles. Depending on the specific photochemistry, those polypeptide derived nano-assemblies are capable of crosslinking, disassembling, or morphing into other shapes upon light irradiation. In this mini-review, we aim to assess the current state of photo-responsive polypeptide based nanomaterials. Firstly, those 'smart' nanomaterials will be categorized by their photo-triggered events (i.e., crosslinking, degradation, and isomerization), which are inherently governed by photo-sensitive functionalities, including O-nitrobenzyl, coumarin, azobenzene, cinnamyl, and spiropyran. In addition, the properties and applications of those polypeptide nanomaterials will be highlighted as well. Finally, the current challenges and future directions of this subject will be evaluated.
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Affiliation(s)
- Lu Yang
- Department of Chemistry, University of Florida, Gainesville, FL 32611, USA.
| | - Houliang Tang
- Department of Chemistry, Southern Methodist University, Dallas, TX 75275, USA.
| | - Hao Sun
- Department of Chemistry, University of Florida, Gainesville, FL 32611, USA.
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19
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Schönemann E, Laschewsky A, Rosenhahn A. Exploring the Long-Term Hydrolytic Behavior of Zwitterionic Polymethacrylates and Polymethacrylamides. Polymers (Basel) 2018; 10:E639. [PMID: 30966673 PMCID: PMC6403559 DOI: 10.3390/polym10060639] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2018] [Revised: 06/04/2018] [Accepted: 06/06/2018] [Indexed: 12/16/2022] Open
Abstract
The hydrolytic stability of polymers to be used for coatings in aqueous environments, for example, to confer anti-fouling properties, is crucial. However, long-term exposure studies on such polymers are virtually missing. In this context, we synthesized a set of nine polymers that are typically used for low-fouling coatings, comprising the well-established poly(oligoethylene glycol methylether methacrylate), poly(3-(N-2-methacryloylethyl-N,N-dimethyl) ammoniopropanesulfonate) ("sulfobetaine methacrylate"), and poly(3-(N-3-methacryamidopropyl-N,N-dimethyl)ammoniopropanesulfonate) ("sulfobetaine methacrylamide") as well as a series of hitherto rarely studied polysulfabetaines, which had been suggested to be particularly hydrolysis-stable. Hydrolysis resistance upon extended storage in aqueous solution is followed by ¹H NMR at ambient temperature in various pH regimes. Whereas the monomers suffered slow (in PBS) to very fast hydrolysis (in 1 M NaOH), the polymers, including the polymethacrylates, proved to be highly stable. No degradation of the carboxyl ester or amide was observed after one year in PBS, 1 M HCl, or in sodium carbonate buffer of pH 10. This demonstrates their basic suitability for anti-fouling applications. Poly(sulfobetaine methacrylamide) proved even to be stable for one year in 1 M NaOH without any signs of degradation. The stability is ascribed to a steric shielding effect. The hemisulfate group in the polysulfabetaines, however, was found to be partially labile.
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Affiliation(s)
- Eric Schönemann
- Institute of Chemistry, University of Potsdam, Karl-Liebknecht-Str. 24-25, D-14476 Potsdam-Golm, Germany.
| | - André Laschewsky
- Institute of Chemistry, University of Potsdam, Karl-Liebknecht-Str. 24-25, D-14476 Potsdam-Golm, Germany.
- Fraunhofer Institute of Applied Polymer Research IAP, Geiselberg-Str. 69, D-14476 Potsdam-Golm, Germany.
| | - Axel Rosenhahn
- Institute of Analytical Chemistry-Biogrenzflächen, Ruhr-Universität Bochum, Universitätsstr. 150, D-44801 Bochum, Germany.
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Kularatne RN, Washington KE, Bulumulla C, Calubaquib EL, Biewer MC, Oupicky D, Stefan MC. Histone Deacetylase Inhibitor (HDACi) Conjugated Polycaprolactone for Combination Cancer Therapy. Biomacromolecules 2018; 19:1082-1089. [PMID: 29485283 PMCID: PMC6176919 DOI: 10.1021/acs.biomac.8b00221] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The short chain fatty acid, 4-phenylbutyric acid (PBA), is used for the treatment of urea cycle disorders and sickle cell disease as an endoplasmic reticulum stress inhibitor. PBA is also known as a histone deacetylase inhibitor (HDACi). We report here the effect of combination therapy on HeLa cancer cells using PBA as the HDACi together with the anticancer drug, doxorubicin (DOX). We synthesized γ-4-phenylbutyrate-ε-caprolactone monomer which was polymerized to form poly(γ-4-phenylbutyrate-ε-caprolactone) (PPBCL) homopolymer using NdCl3·3TEP/TIBA (TEP = triethyl phosphate, TIBA = triisobutylaluminum) catalytic system. DOX-loaded nanoparticles were prepared from the PPBCL homopolymer using poly(ethylene glycol) as a surfactant. An encapsulation efficiency as high as 88% was obtained for these nanoparticles. The DOX-loaded nanoparticles showed a cumulative release of >95% of DOX at pH 5 and 37 °C within 12 h, and PBA release was monitored by 1H NMR spectroscopy. The efficiency of the combination therapy can notably be seen in the cytotoxicity study carried out on HeLa cells, where only ∼20% of cell viability was observed after treatment with the DOX-loaded nanoparticles. This drastic cytotoxic effect on HeLa cells is the result of the dual action of DOX and PBA on the DNA strands and the HDAC enzymes, respectively. Overall, this study shows the potential of combination treatment with HDACi and DOX anticancer drug as compared to the treatment with an anticancer drug alone.
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Affiliation(s)
- Ruvanthi N. Kularatne
- Department of Chemistry and Biochemistry, University of Texas at Dallas, Richardson, Texas 75080, United States
| | - Katherine E. Washington
- Department of Chemistry and Biochemistry, University of Texas at Dallas, Richardson, Texas 75080, United States
| | - Chandima Bulumulla
- 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
| | - Michael C. Biewer
- Department of Chemistry and Biochemistry, University of Texas at Dallas, Richardson, Texas 75080, United States
| | - David Oupicky
- Center for Drug Delivery and Nanomedicine, Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, Nebraska 68198, United States
| | - Mihaela C. Stefan
- Department of Chemistry and Biochemistry, University of Texas at Dallas, Richardson, Texas 75080, United States
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Mucoadhesive Interpolyelectrolyte Complexes for the Buccal Delivery of Clobetasol. Polymers (Basel) 2018; 10:polym10010085. [PMID: 30966120 PMCID: PMC6414932 DOI: 10.3390/polym10010085] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2017] [Revised: 01/08/2018] [Accepted: 01/08/2018] [Indexed: 11/17/2022] Open
Abstract
This work aimed to investigate the feasibility to design: (a) a mucoadhesive interpolyelectrolyte complex (IPEC) loaded with clobetasol propionate (CP) intended to treat oral lichen planus and (b) individuate an orodispersible dosage form suitable for its administration. IPECs were synthesized by mixing Eudragit® E PO (EPO) and different grades of cross-linked polyacrylate derivatives, in different molar ratios, namely 1:1, 1:2, and 2:1. All IPECs resulted at nanoscale independently of their composition (120⁻200 nm). Both zeta-potentials (ζ) and mucoadhesive performances were influenced by the ratio between polymers. On the bases of the preliminary data, IPECs made of Polycarbophil and EPO in the 1:2 ratio were loaded with CP. The encapsulation efficiency was up 88% independently of the CP-IPEC ratio. The drug encapsulation caused IPEC destabilization in water, as it was noticed by the increase of ζ values and the formation of aggregates. Oral lyophilisates were prepared by freeze-drying slurries made of placebo or CP loaded IPECs, maltodextrin with a dextrose equivalent 38 and Span®80. The optimized formulation permitted to obtain a fast disintegration upon contact with water reducing the tendency of IPECs to aggregate. Moreover, oral lyophilisates allowed improving the apparent solubility of CP throughout the in vitro release experiment.
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Tian F, Wang Y, Zhao J, Shi Q, Zhang D, Sun J, Zhang C. Design and fabrication of poly(HPMA)–6-mercaptopurine conjugates and their in vitro anticancer effect. NEW J CHEM 2018. [DOI: 10.1039/c8nj04039g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A polymeric prodrug of poly(HPMA)–6MP was synthesized by grafting 6MP on poly(HPMA) and it exhibited an enhanced therapeutic effect.
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Affiliation(s)
- Fang Tian
- Gansu Provincial Maternity and Child-care Hospital
- Lanzhou 730000
- P. R. China
| | - Yueyuan Wang
- Gansu Provincial Maternity and Child-care Hospital
- Lanzhou 730000
- P. R. China
| | - Jie Zhao
- Gansu Provincial Maternity and Child-care Hospital
- Lanzhou 730000
- P. R. China
| | - Qingfang Shi
- Gansu Provincial Maternity and Child-care Hospital
- Lanzhou 730000
- P. R. China
| | - Dengcai Zhang
- Gansu Provincial Maternity and Child-care Hospital
- Lanzhou 730000
- P. R. China
| | - Jianping Sun
- Gansu Provincial Maternity and Child-care Hospital
- Lanzhou 730000
- P. R. China
| | - Chong Zhang
- Gansu Provincial Maternity and Child-care Hospital
- Lanzhou 730000
- P. R. China
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