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Koeppe H, Horn D, Scholz J, Quaas E, Schötz S, Reisbeck F, Achazi K, Mohammadifar E, Dernedde J, Haag R. Shell-Sheddable Dendritic Polyglycerol Sulfates Loaded with Sunitinib for Inhibition of Tumor Angiogenesis. Int J Pharm 2023:123158. [PMID: 37336299 DOI: 10.1016/j.ijpharm.2023.123158] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 06/05/2023] [Accepted: 06/16/2023] [Indexed: 06/21/2023]
Abstract
Induced angiogenesis, a specific hallmark of cancer, plays a vital role in tumor progression and can be targeted by inhibitors like sunitinib. Sunitinib is a small hydrophobic molecule suffering from low bioavailability and a short half-life in the bloodstream. To overcome these drawbacks, suitable drug delivery systems need to be developed. In this work dendritic polyglycerol (dPG), a well-known polymer, was functionalized with a sheddable shell. Therefore, aliphatic chains of different lengths (C5, C9, C11) were coupled to dPG through a cleavable ester bond. To restore water solubility and improve tumor targeting, the surface was decorated with sulfate groups. The resulting shell-sheddable dPG sulfates were characterized and evaluated regarding their loading capacity and biocompatibility in cell culture. The nine-carbon chain derivative (dPG-TNS) was selected as the best candidate for further experiments due to its high drug loading capacity (20wt%), and a sustained release in vitro. The cellular biocompatibility of the blank carrier up to 1mg/mL was confirmed after 24h incubation on HeLa cells. Furthermore, the shell-cleavability of dPG-TNS under different physiological conditions was shown in a degradation study over four weeks. The activity of sunitinib-loaded dPG-TNS was demonstrated in a tube formation assay on Human umbilical vein endothelial cells (HUVECs). Our results suggest that the drug-loaded nanocarrier is a promising candidate to be further investigated in tumor treatments, as it shows similar efficacy to free sunitinib while overcoming its limitations.
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Affiliation(s)
- Hanna Koeppe
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, 14195 Berlin, Germany
| | - Daniel Horn
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, 14195 Berlin, Germany
| | - Johanna Scholz
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, 14195 Berlin, Germany
| | - Elisa Quaas
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, 14195 Berlin, Germany
| | - Sebastian Schötz
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, 14195 Berlin, Germany
| | - Felix Reisbeck
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, 14195 Berlin, Germany
| | - Katharina Achazi
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, 14195 Berlin, Germany
| | - Ehsan Mohammadifar
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, 14195 Berlin, Germany.
| | - Jens Dernedde
- Institute for Laboratory Medicine, Clinical Chemistry and Pathobiochemistry, Charité-Universitätsmedizin Berlin, 13353 Berlin, Germany.
| | - Rainer Haag
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, 14195 Berlin, Germany.
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2
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Witt M, Cherri M, Ferraro M, Yapto C, Vogel K, Schmidt L, Haag R, Danker K, Dommisch H. Anti-inflammatory IL-8 Regulation via an Advanced Drug Delivery System at the Oral Mucosa. ACS APPLIED BIO MATERIALS 2023. [PMID: 37216981 DOI: 10.1021/acsabm.3c00024] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Oral inflammatory diseases are highly prevalent in the worldwide population. Topical treatment of inflammation is challenging due to dilution effects of saliva and crevicular fluid. Thus, there is a great medical need to develop smart anti-inflammatory drug delivery systems for mucosa treatment. We compared two promising anti-inflammatory dendritic poly(glycerol-caprolactone) sulfate (dPGS-PCL) polymers for their applicability to the oral mucosa. Using an ex vivo porcine tissue model, cell monolayers, and full-thickness 3D oral mucosal organoids, the polymers were evaluated for muco-adhesion, penetration, and anti-inflammatory properties. The biodegradable dPGS-PCL97 polymers adhered to and penetrated the masticatory mucosa within seconds. No effects on metabolic activity and cell proliferation were found. dPGS-PCL97 revealed a significant downregulation of pro-inflammatory cytokines with a clear preference for IL-8 in cell monolayers and mucosal organoids. Thus, dPGS-PCL97 exhibits excellent properties for topical anti-inflammatory therapy, suggesting new therapeutic avenues in the treatment of oral inflammatory diseases.
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Affiliation(s)
- Maren Witt
- Department of Periodontology, Oral Medicine and Oral Surgery, Corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Charité - Universitätsmedizin Berlin, Berlin 14197 , Germany
| | - Mariam Cherri
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Takustr. 3, Berlin 14195, Germany
| | - Magda Ferraro
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Takustr. 3, Berlin 14195, Germany
| | - Cynthia Yapto
- Institute of Biochemistry, Corporate Member of Freie Universität Berlin, Humboldt Universität zu Berlin, and Berlin Institute of Health, Charité-Universitätsmedizin Berlin, Berlin 10117, Germany
| | - Katrin Vogel
- Department of Periodontology, Oral Medicine and Oral Surgery, Corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Charité - Universitätsmedizin Berlin, Berlin 14197 , Germany
| | - Lena Schmidt
- Institute of Biochemistry, Corporate Member of Freie Universität Berlin, Humboldt Universität zu Berlin, and Berlin Institute of Health, Charité-Universitätsmedizin Berlin, Berlin 10117, Germany
| | - Rainer Haag
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Takustr. 3, Berlin 14195, Germany
| | - Kerstin Danker
- Institute of Biochemistry, Corporate Member of Freie Universität Berlin, Humboldt Universität zu Berlin, and Berlin Institute of Health, Charité-Universitätsmedizin Berlin, Berlin 10117, Germany
| | - Henrik Dommisch
- Department of Periodontology, Oral Medicine and Oral Surgery, Corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Charité - Universitätsmedizin Berlin, Berlin 14197 , Germany
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3
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Moreira DA, Santos SD, Leiro V, Pêgo AP. Dendrimers and Derivatives as Multifunctional Nanotherapeutics for Alzheimer's Disease. Pharmaceutics 2023; 15:pharmaceutics15041054. [PMID: 37111540 PMCID: PMC10140951 DOI: 10.3390/pharmaceutics15041054] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 03/15/2023] [Accepted: 03/18/2023] [Indexed: 04/29/2023] Open
Abstract
Alzheimer's disease (AD) is the most prevalent form of dementia. It affects more than 30 million people worldwide and costs over US$ 1.3 trillion annually. AD is characterized by the brain accumulation of amyloid β peptide in fibrillar structures and the accumulation of hyperphosphorylated tau aggregates in neurons, both leading to toxicity and neuronal death. At present, there are only seven drugs approved for the treatment of AD, of which only two can slow down cognitive decline. Moreover, their use is only recommended for the early stages of AD, meaning that the major portion of AD patients still have no disease-modifying treatment options. Therefore, there is an urgent need to develop efficient therapies for AD. In this context, nanobiomaterials, and dendrimers in particular, offer the possibility of developing multifunctional and multitargeted therapies. Due to their intrinsic characteristics, dendrimers are first-in-class macromolecules for drug delivery. They have a globular, well-defined, and hyperbranched structure, controllable nanosize and multivalency, which allows them to act as efficient and versatile nanocarriers of different therapeutic molecules. In addition, different types of dendrimers display antioxidant, anti-inflammatory, anti-bacterial, anti-viral, anti-prion, and most importantly for the AD field, anti-amyloidogenic properties. Therefore, dendrimers can not only be excellent nanocarriers, but also be used as drugs per se. Here, the outstanding properties of dendrimers and derivatives that make them excellent AD nanotherapeutics are reviewed and critically discussed. The biological properties of several dendritic structures (dendrimers, derivatives, and dendrimer-like polymers) that enable them to be used as drugs for AD treatment will be pointed out and the chemical and structural characteristics behind those properties will be analysed. The reported use of these nanomaterials as nanocarriers in AD preclinical research is also presented. Finally, future perspectives and challenges that need to be overcome to make their use in the clinic a reality are discussed.
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Affiliation(s)
- Débora A Moreira
- i3S-Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal
- INEB-Instituto de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal
- FEUP-Faculdade de Engenharia, Universidade do Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
| | - Sofia D Santos
- i3S-Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal
- INEB-Instituto de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal
| | - Victoria Leiro
- i3S-Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal
- INEB-Instituto de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal
| | - Ana P Pêgo
- i3S-Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal
- INEB-Instituto de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal
- ICBAS-Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Rua Jorge de Viterbo Ferreira 228, 4050-313 Porto, Portugal
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4
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Tu Z, Zhong Y, Hu H, Shao D, Haag R, Schirner M, Lee J, Sullenger B, Leong KW. Design of therapeutic biomaterials to control inflammation. NATURE REVIEWS. MATERIALS 2022; 7:557-574. [PMID: 35251702 PMCID: PMC8884103 DOI: 10.1038/s41578-022-00426-z] [Citation(s) in RCA: 175] [Impact Index Per Article: 87.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 01/12/2022] [Indexed: 05/03/2023]
Abstract
Inflammation plays an important role in the response to danger signals arising from damage to our body and in restoring homeostasis. Dysregulated inflammatory responses occur in many diseases, including cancer, sepsis and autoimmunity. The efficacy of anti-inflammatory drugs, developed for the treatment of dysregulated inflammation, can be potentiated using biomaterials, by improving the bioavailability of drugs and by reducing side effects. In this Review, we first outline key elements and stages of the inflammatory environment and then discuss the design of biomaterials for different anti-inflammatory therapeutic strategies. Biomaterials can be engineered to scavenge danger signals, such as reactive oxygen and nitrogen species and cell-free DNA, in the early stages of inflammation. Materials can also be designed to prevent adhesive interactions of leukocytes and endothelial cells that initiate inflammatory responses. Furthermore, nanoscale platforms can deliver anti-inflammatory agents to inflammation sites. We conclude by discussing the challenges and opportunities for biomaterial innovations in addressing inflammation.
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Affiliation(s)
- Zhaoxu Tu
- School of Biomedical Sciences and Engineering, South China University of Technology, Guangzhou International Campus, Guangzhou, China
- Department of Biomedical Engineering, Columbia University, New York, NY USA
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, China
| | - Yiling Zhong
- Department of Biomedical Engineering, Columbia University, New York, NY USA
- School of Chemistry, University of New South Wales, Sydney, New South Wales Australia
| | - Hanze Hu
- Department of Biomedical Engineering, Columbia University, New York, NY USA
| | - Dan Shao
- School of Biomedical Sciences and Engineering, South China University of Technology, Guangzhou International Campus, Guangzhou, China
- Institutes for Life Sciences, School of Medicine, South China University of Technology, Guangzhou, China
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, China
| | - Rainer Haag
- Institut für Chemie und Biochemie, Freie Universität Berlin, Berlin, Germany
| | - Michael Schirner
- Institut für Chemie und Biochemie, Freie Universität Berlin, Berlin, Germany
| | - Jaewoo Lee
- School of Medicine, Duke University, Durham, NC USA
| | | | - Kam W. Leong
- Department of Biomedical Engineering, Columbia University, New York, NY USA
- Department of Systems Biology, Columbia University, New York, NY USA
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5
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Braatz D, Dimde M, Ma G, Zhong Y, Tully M, Grötzinger C, Zhang Y, Mavroskoufis A, Schirner M, Zhong Z, Ballauff M, Haag R. Toolbox of Biodegradable Dendritic (Poly glycerol sulfate)-SS-poly(ester) Micelles for Cancer Treatment: Stability, Drug Release, and Tumor Targeting. Biomacromolecules 2021; 22:2625-2640. [PMID: 34076415 DOI: 10.1021/acs.biomac.1c00333] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
In this paper, we present well-defined dPGS-SS-PCL/PLGA/PLA micellar systems demonstrating excellent capabilities as a drug delivery platform in light of high stability and precise in vitro and in vivo drug release combined with active targetability to tumors. These six amphiphilic block copolymers were each targeted in two different molecular weights (8 or 16 kDa) and characterized using 1H NMR, gel permeation chromatography (GPC), and elemental analysis. The block copolymer micelles showed monodispersed size distributions of 81-187 nm, strong negative charges between -52 and -41 mV, and low critical micelle concentrations (CMCs) of up to 1.13-3.58 mg/L (134-527 nM). The serum stability was determined as 94% after 24 h. The drug-loading efficiency for Sunitinib ranges from 38 to 83% (8-17 wt %). The release was selectively triggered by glutathione (GSH) and lipase, reaching 85% after 5 days, while only 20% leaching was observed under physiological conditions. Both the in vitro and in vivo studies showed sustained release of Sunitinib over 1 week. CCK-8 assays on HeLa lines demonstrated the high cell compatibility (1 mg/mL, 94% cell viability, 48 h) and the high cancer cell toxicity of Sunitinib-loaded micelles (IC50 2.5 μg/mL). By in vivo fluorescence imaging studies on HT-29 tumor-bearing mice, the targetability of dPGS7.8-SS-PCL7.8 enabled substantial accumulation in tumor tissue compared to nonsulfated dPG3.9-SS-PCL7.8. As a proof of concept, Sunitinib-loaded dPGS-SS-poly(ester) micelles improved the antitumor efficacy of the chemotherapeutic. A tenfold lower dosage of loaded Sunitinib led to an even higher tumor growth inhibition compared to the free drug, as demonstrated in a HeLa human cervical tumor-bearing mice model. No toxicity for the organism was observed, confirming the good biocompatibility of the system.
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Affiliation(s)
- Daniel Braatz
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustr. 3, 14195 Berlin, Germany
| | - Mathias Dimde
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustr. 3, 14195 Berlin, Germany
| | - Guoxin Ma
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustr. 3, 14195 Berlin, Germany
| | - Yinan Zhong
- Department of Pharmaceutical Engineering, China Pharmaceutical University, Nanjing 211198, P. R. China
| | - Michael Tully
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustr. 3, 14195 Berlin, Germany
| | - Carsten Grötzinger
- Department of Hepatology and Gastroenterology, Charité Universitätsmedizin Berlin, Augustenburger Platz 1, 13353 Berlin, Germany.,German Cancer Consortium (DKTK), Partner Site Berlin, 13353 Berlin, Germany
| | - Yuanyuan Zhang
- Department of Pharmaceutical Engineering, China Pharmaceutical University, Nanjing 211198, P. R. China
| | - Alexandros Mavroskoufis
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustr. 3, 14195 Berlin, Germany
| | - Michael Schirner
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustr. 3, 14195 Berlin, Germany
| | - Zhiyuan Zhong
- Biomedical Polymers Laboratory, College of Chemistry, Chemical Engineering and Materials Science, and State Key Laboratory of Radiation Medicine and Protection, Soochow University, Suzhou 215123, P. R. China
| | - Matthias Ballauff
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustr. 3, 14195 Berlin, Germany
| | - Rainer Haag
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustr. 3, 14195 Berlin, Germany
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6
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Cherri M, Ferraro M, Mohammadifar E, Quaas E, Achazi K, Ludwig K, Grötzinger C, Schirner M, Haag R. Biodegradable Dendritic Polyglycerol Sulfate for the Delivery and Tumor Accumulation of Cytostatic Anticancer Drugs. ACS Biomater Sci Eng 2021; 7:2569-2579. [PMID: 34061498 DOI: 10.1021/acsbiomaterials.1c00439] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Targeted delivery and extended blood circulation of anticancer drugs have been the challenges for decreasing the adverse side effects and improving the therapeutic efficiency in cancer chemotherapy. Herein, we present a drug delivery system (DDS) based on biodegradable dendritic polyglycerol sulfate-bearing poly(caprolactone) (dPGS-PCL) chains, which has been synthesized on 20 g scale using a straightforward two-step protocol. In vivo fluorescence imaging demonstrated a significant accumulation of the DDS in the tumor environment. Sunitinib, an anticancer drug, was loaded into the DDS and the drug-induced toxicity was investigated in vitro and in vivo. The drug encapsulated in dPGS-PCL and the free drug showed similar toxicities in A431 and HT-29 cells, and the cellular uptake was comparable. The straightforward and large-scale synthesis, the organic solvent-free drug-loading approach, together with the tumor targetability of the biodegradable dendritic polyglycerols, render this copolymer a promising candidate for targeted cancer nanomedicine drug delivery systems.
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Affiliation(s)
- Mariam Cherri
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Takustr. 3, 14195 Berlin, Germany
| | - Magda Ferraro
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Takustr. 3, 14195 Berlin, Germany
| | - Ehsan Mohammadifar
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Takustr. 3, 14195 Berlin, Germany
| | - Elisa Quaas
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Takustr. 3, 14195 Berlin, Germany
| | - Katharina Achazi
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Takustr. 3, 14195 Berlin, Germany
| | - Kai Ludwig
- Research Center for Electron Microscopy and Core Facility BioSupraMol, Institute of Chemistry and Biochemistry, Freie Universität Berlin, Fabeckstr. 36a, 14195 Berlin, Germany
| | - Carsten Grötzinger
- Department of Hepatology and Gastroenterology, and Molecular Cancer Research Center (MKFZ), Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, CVK Augustenburger Platz 1, 13353 Berlin, Germany.,German Cancer Consortium (DKTK), Partner Site Berlin, 13353 Berlin, Germany
| | - Michael Schirner
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Takustr. 3, 14195 Berlin, Germany
| | - Rainer Haag
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Takustr. 3, 14195 Berlin, Germany
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7
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Mohammadifar E, Ahmadi V, Gholami MF, Oehrl A, Kolyvushko O, Nie C, Donskyi IS, Herziger S, Radnik J, Ludwig K, Böttcher C, Rabe JP, Osterrieder K, Azab W, Haag R, Adeli M. Graphene-Assisted Synthesis of 2D Polyglycerols as Innovative Platforms for Multivalent Virus Interactions. ADVANCED FUNCTIONAL MATERIALS 2021; 31:2009003. [PMID: 34230823 PMCID: PMC8250216 DOI: 10.1002/adfm.202009003] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Revised: 02/08/2021] [Indexed: 05/12/2023]
Abstract
2D nanomaterials have garnered widespread attention in biomedicine and bioengineering due to their unique physicochemical properties. However, poor functionality, low solubility, intrinsic toxicity, and nonspecific interactions at biointerfaces have hampered their application in vivo. Here, biocompatible polyglycerol units are crosslinked in two dimensions using a graphene-assisted strategy leading to highly functional and water-soluble polyglycerols nanosheets with 263 ± 53 nm and 2.7 ± 0.2 nm average lateral size and thickness, respectively. A single-layer hyperbranched polyglycerol containing azide functional groups is covalently conjugated to the surface of a functional graphene template through pH-sensitive linkers. Then, lateral crosslinking of polyglycerol units is carried out by loading tripropargylamine on the surface of graphene followed by lifting off this reagent for an on-face click reaction. Subsequently, the polyglycerol nanosheets are detached from the surface of graphene by slight acidification and centrifugation and is sulfated to mimic heparin sulfate proteoglycans. To highlight the impact of the two-dimensionality of the synthesized polyglycerol sulfate nanosheets at nanobiointerfaces, their efficiency with respect to herpes simplex virus type 1 and severe acute respiratory syndrome corona virus 2 inhibition is compared to their 3D nanogel analogs. Four times stronger in virus inhibition suggests that 2D polyglycerols are superior to their current 3D counterparts.
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Affiliation(s)
- Ehsan Mohammadifar
- Institut für Chemie und BiochemieFreie Universität BerlinTakustrasse 314195BerlinGermany
| | - Vahid Ahmadi
- Institut für Chemie und BiochemieFreie Universität BerlinTakustrasse 314195BerlinGermany
| | - Mohammad Fardin Gholami
- Department of Physics and Integrative Research Institute for the Sciences IRIS AdlershofHumboldt‐Universität zu BerlinNewtonstrasse 15 and Zum Großen Windkanal 212489BerlinGermany
| | - Alexander Oehrl
- Institut für Chemie und BiochemieFreie Universität BerlinTakustrasse 314195BerlinGermany
| | - Oleksandr Kolyvushko
- Institut für VirologieRobert von Ostertag‐HausZentrum für InfektionsmedizinFreie Universität BerlinRobert‐von‐Ostertag‐Str. 7‐1314163BerlinGermany
| | - Chuanxiong Nie
- Institut für Chemie und BiochemieFreie Universität BerlinTakustrasse 314195BerlinGermany
| | - Ievgen S. Donskyi
- Institut für Chemie und BiochemieFreie Universität BerlinTakustrasse 314195BerlinGermany
- BAM – Federal Institute for Material Science and Testing Division of Surface Analysis, and Interfacial ChemistryUnter den Eichen 44‐4612205BerlinGermany
| | - Svenja Herziger
- Forschungszentrum für Elektronenmikroskopie and Core Facility BioSupraMolInstitut für Chemie und Biochemie Freie Universität BerlinFabeckstrasse 36a14195BerlinGermany
| | - Jörg Radnik
- BAM – Federal Institute for Material Science and Testing Division of Surface Analysis, and Interfacial ChemistryUnter den Eichen 44‐4612205BerlinGermany
| | - Kai Ludwig
- Forschungszentrum für Elektronenmikroskopie and Core Facility BioSupraMolInstitut für Chemie und Biochemie Freie Universität BerlinFabeckstrasse 36a14195BerlinGermany
| | - Christoph Böttcher
- Forschungszentrum für Elektronenmikroskopie and Core Facility BioSupraMolInstitut für Chemie und Biochemie Freie Universität BerlinFabeckstrasse 36a14195BerlinGermany
| | - Jürgen P. Rabe
- Department of Physics and Integrative Research Institute for the Sciences IRIS AdlershofHumboldt‐Universität zu BerlinNewtonstrasse 15 and Zum Großen Windkanal 212489BerlinGermany
| | - Klaus Osterrieder
- Institut für VirologieRobert von Ostertag‐HausZentrum für InfektionsmedizinFreie Universität BerlinRobert‐von‐Ostertag‐Str. 7‐1314163BerlinGermany
- Department of Infectious Diseases and Public HealthJockey Club College of Veterinary Medicine and Life SciencesCity University of Hong KongKowloon TongHong Kong
| | - Walid Azab
- Institut für VirologieRobert von Ostertag‐HausZentrum für InfektionsmedizinFreie Universität BerlinRobert‐von‐Ostertag‐Str. 7‐1314163BerlinGermany
| | - Rainer Haag
- Institut für Chemie und BiochemieFreie Universität BerlinTakustrasse 314195BerlinGermany
| | - Mohsen Adeli
- Department of ChemistryFaculty of ScienceLorestan UniversityKhorramabadIran
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8
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Reisbeck F, Ozimkovski A, Cherri M, Dimde M, Quaas E, Mohammadifar E, Achazi K, Haag R. Gram Scale Synthesis of Dual-Responsive Dendritic Polyglycerol Sulfate as Drug Delivery System. Polymers (Basel) 2021; 13:982. [PMID: 33806866 PMCID: PMC8004855 DOI: 10.3390/polym13060982] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 03/15/2021] [Accepted: 03/17/2021] [Indexed: 11/18/2022] Open
Abstract
Biocompatible polymers with the ability to load and release a cargo at the site of action in a smart response to stimuli have attracted great attention in the field of drug delivery and cancer therapy. In this work, we synthesize a dual-responsive dendritic polyglycerol sulfate (DR-dPGS) drug delivery system by copolymerization of glycidol, ε-caprolactone and an epoxide monomer bearing a disulfide bond (SSG), followed by sulfation of terminal hydroxyl groups of the copolymer. The effect of different catalysts, including Lewis acids and organic bases, on the molecular weight, monomer content and polymer structure was investigated. The degradation of the polymer backbone was proven in presence of reducing agents and candida antarctica Lipase B (CALB) enzyme, which results in the cleavage of the disulfides and ester bonds, respectively. The hydrophobic anticancer drug Doxorubicin (DOX) was loaded in the polymer and the kinetic assessment showed an enhanced drug release with glutathione (GSH) or CALB as compared to controls and a synergistic effect of a combination of both stimuli. Cell uptake was studied by using confocal laser scanning microscopy with HeLa cells and showed the uptake of the Dox-loaded carriers and the release of the drug into the nucleus. Cytotoxicity tests with three different cancer cell lines showed good tolerability of the polymers of as high concentrations as 1 mg mL-1, while cancer cell growth was efficiently inhibited by DR-dPGS@Dox.
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Affiliation(s)
| | | | | | | | | | - Ehsan Mohammadifar
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Takustr. 3, 14195 Berlin, Germany; (F.R.); (A.O.); (M.C.); (M.D.); (E.Q.)
| | - Katharina Achazi
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Takustr. 3, 14195 Berlin, Germany; (F.R.); (A.O.); (M.C.); (M.D.); (E.Q.)
| | - Rainer Haag
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Takustr. 3, 14195 Berlin, Germany; (F.R.); (A.O.); (M.C.); (M.D.); (E.Q.)
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9
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Pouyan P, Nie C, Bhatia S, Wedepohl S, Achazi K, Osterrieder N, Haag R. Inhibition of Herpes Simplex Virus Type 1 Attachment and Infection by Sulfated Polyglycerols with Different Architectures. Biomacromolecules 2021; 22:1545-1554. [PMID: 33706509 DOI: 10.1021/acs.biomac.0c01789] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Inhibition of herpes simplex virus type 1 (HSV-1) binding to the host cell surface by highly sulfated architectures is among the promising strategies to prevent virus entry and infection. However, the structural flexibility of multivalent inhibitors plays a major role in effective blockage and inhibition of virus receptors. In this study, we demonstrate the inhibitory effect of a polymer scaffold on the HSV-1 infection by using highly sulfated polyglycerols with different architectures (linear, dendronized, and hyperbranched). IC50 values for all synthesized sulfated polyglycerols and the natural sulfated polymer heparin were determined using plaque reduction infection assays. Interestingly, an increase in the IC50 value from 0.03 to 374 nM from highly flexible linear polyglycerol sulfate (LPGS) to less flexible scaffolds, namely, dendronized polyglycerol sulfate and hyperbranched polyglycerol sulfate was observed. The most potent LPGS inhibits HSV-1 infection 295 times more efficiently than heparin, and we show that LPGS has a much reduced anticoagulant capacity when compared to heparin as evidenced by measuring the activated partial thromboplastin time. Furthermore, prevention of infection by LPGS and the commercially available drug acyclovir were compared. All tested sulfated polymers do not show any cytotoxicity at concentrations of up to 1 mg/mL in different cell lines. We conclude from our results that more flexible polyglycerol sulfates are superior to less flexible sulfated polymers with respect to inhibition of HSV-1 infection and may constitute an alternative to the current antiviral treatments of this ubiquitous pathogen.
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Affiliation(s)
- Paria Pouyan
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Takustr. 3, Berlin 14195, Germany
| | - Chuanxiong Nie
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Takustr. 3, Berlin 14195, Germany.,Institut für Virologie, Robert von Ostertag-Haus, Zentrum für Infektionsmedizin, Freie Universität Berlin, Robert-von-Ostertag-Street 7-13, Berlin 14163, Germany
| | - Sumati Bhatia
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Takustr. 3, Berlin 14195, Germany
| | - Stefanie Wedepohl
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Arnimallee. 22, Berlin 14195, Germany
| | - Katharina Achazi
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Arnimallee. 22, Berlin 14195, Germany
| | - Nikolaus Osterrieder
- Institut für Virologie, Robert von Ostertag-Haus, Zentrum für Infektionsmedizin, Freie Universität Berlin, Robert-von-Ostertag-Street 7-13, Berlin 14163, Germany.,Department of Infectious Diseases and Public Health, Jockey Club College of Veterinary Medicine and Life Sciences, City University of Hong Kong, Kowloon Tong TYB-1B-507, Hong Kong
| | - Rainer Haag
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Takustr. 3, Berlin 14195, Germany
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10
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Achazi K, Haag R, Ballauff M, Dernedde J, Kizhakkedathu JN, Maysinger D, Multhaup G. Understanding the Interaction of Polyelectrolyte Architectures with Proteins and Biosystems. Angew Chem Int Ed Engl 2021; 60:3882-3904. [PMID: 32589355 PMCID: PMC7894192 DOI: 10.1002/anie.202006457] [Citation(s) in RCA: 53] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Indexed: 02/06/2023]
Abstract
The counterions neutralizing the charges on polyelectrolytes such as DNA or heparin may dissociate in water and greatly influence the interaction of such polyelectrolytes with biomolecules, particularly proteins. In this Review we give an overview of studies on the interaction of proteins with polyelectrolytes and how this knowledge can be used for medical applications. Counterion release was identified as the main driving force for the binding of proteins to polyelectrolytes: Patches of positive charge become multivalent counterions of the polyelectrolyte and lead to the release of counterions from the polyelectrolyte and a concomitant increase in entropy. This is shown from investigations on the interaction of proteins with natural and synthetic polyelectrolytes. Special emphasis is paid to sulfated dendritic polyglycerols (dPGS). The Review demonstrates that we are moving to a better understanding of charge-charge interactions in systems of biological relevance. Research along these lines will aid and promote the design of synthetic polyelectrolytes for medical applications.
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Affiliation(s)
- Katharina Achazi
- Institut für Chemie und BiochemieFreie Universität BerlinTakustrasse 314195BerlinGermany
| | - Rainer Haag
- Institut für Chemie und BiochemieFreie Universität BerlinTakustrasse 314195BerlinGermany
| | - Matthias Ballauff
- Institut für Chemie und BiochemieFreie Universität BerlinTakustrasse 314195BerlinGermany
- IRIS AdlershofHumboldt Universität zu BerlinZum Grossen Windkanal 612489BerlinGermany
| | - Jens Dernedde
- Charité-Universitätsmedizin BerlinInstitute of Laboratory MedicineClinical Chemistry, and PathobiochemistryCVK Augustenburger Platz 113353BerlinGermany
| | - Jayachandran N. Kizhakkedathu
- Centre for Blood ResearchDepartment of Pathology and Laboratory MedicineLife Science InstituteDepartment of ChemistrySchool of Biomedical EngineeringUniversity of British ColumbiaVancouverV6T 1Z3Canada
| | - Dusica Maysinger
- Department of Pharmacology and TherapeuticsMcGill UniversityMontrealH3G 1Y6Canada
| | - Gerd Multhaup
- Department of Pharmacology and TherapeuticsMcGill UniversityMontrealH3G 1Y6Canada
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11
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Hu Y, Wang D, Wang H, Zhao R, Wang Y, Shi Y, Zhu J, Xie Y, Song YQ, Lu H. An urchin-like helical polypeptide-asparaginase conjugate with mitigated immunogenicity. Biomaterials 2020; 268:120606. [PMID: 33360506 DOI: 10.1016/j.biomaterials.2020.120606] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2020] [Revised: 12/09/2020] [Accepted: 12/12/2020] [Indexed: 12/13/2022]
Abstract
The use of asparaginase (ASNase), a first line drug for lymphoma treatment, is impaired by short circulation and notoriously high immunogenicity. Although PEGylation can prolong the circulating half-life of ASNase, however, it also induces anti-PEG antibodies that lead to accelerated blood clearance (ABC) and hypersensitivity reactions. Here, we create an urchin-like polypeptide-ASNase conjugate P(CB-EG3Glu)-ASNase, in which the surface of ASNase is sufficiently shielded by an array of zwitterionic helical polypeptides through the labeling of the ε-amine of lysine. The conjugate is fully characterized with size exclusion chromatography, SDS-PAGE, dynamic light scattering, and circular dichroism. In vitro, P(CB-EG3Glu)-ASNase retains full activity based on the enzymatic assay using the Nessler's reagent and cell viability assay. In vivo, examination of the enzyme activity in serum indicates that P(CB-EG3Glu)-ASNase prolongs the circulating half-life of ASNase for ~20 fold. Moreover, P(CB-EG3Glu)-ASNase significantly inhibits tumor growth in a xenografted mouse model using human NKYS cells. Importantly, P(CB-EG3Glu)-ASNase elicits almost no antidrug or antipolymer antibodies without inducing ABC effect, which is in sharp contrast with a similarly produced PEG-ASNase conjugate that develops both antidrug/antipolymer antibodies and profound ABC phenomenon. Our results demonstrate that urchin-like conjugates are outstanding candidates for reducing immunogenicity of therapeutic proteins, and P(CB-EG3Glu)-ASNase holds great promises for the treatment of various lymphoma diseases.
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Affiliation(s)
- Yali Hu
- Beijing National Laboratory for Molecular Sciences, Center for Soft Matter Science and Engineering, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, People's Republic of China; Peking-Tsinghua Center for Life Sciences, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, 100871, People's Republic of China
| | - Dedao Wang
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Lymphoma, Peking University Cancer Hospital & Institute, 52 Fucheng Road, Haidian District, Beijing, 100142, People's Republic of China
| | - Hao Wang
- Beijing National Laboratory for Molecular Sciences, Center for Soft Matter Science and Engineering, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, People's Republic of China
| | - Ruichi Zhao
- Beijing National Laboratory for Molecular Sciences, Center for Soft Matter Science and Engineering, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, People's Republic of China
| | - Yaoyi Wang
- Beijing National Laboratory for Molecular Sciences, Center for Soft Matter Science and Engineering, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, People's Republic of China
| | - Yunfei Shi
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Pathology, Peking University Cancer Hospital & Institute, 52 Fucheng Road, Haidian District, Beijing, 100142, People's Republic of China
| | - Jun Zhu
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Lymphoma, Peking University Cancer Hospital & Institute, 52 Fucheng Road, Haidian District, Beijing, 100142, People's Republic of China
| | - Yan Xie
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Lymphoma, Peking University Cancer Hospital & Institute, 52 Fucheng Road, Haidian District, Beijing, 100142, People's Republic of China.
| | - Yu-Qin Song
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Lymphoma, Peking University Cancer Hospital & Institute, 52 Fucheng Road, Haidian District, Beijing, 100142, People's Republic of China.
| | - Hua Lu
- Beijing National Laboratory for Molecular Sciences, Center for Soft Matter Science and Engineering, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, People's Republic of China.
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12
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Bhardwaj M, T K P, Mani S, R M, Sali VK, Vasanthi HR. Sulfated polysaccharide from Turbinaria ornata suppress lipopolysaccharide-induced inflammatory response in RAW 264.7 macrophages. Int J Biol Macromol 2020; 164:4299-4305. [PMID: 32918958 DOI: 10.1016/j.ijbiomac.2020.09.036] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 08/27/2020] [Accepted: 09/07/2020] [Indexed: 12/21/2022]
Abstract
BACKGROUND Marine macroalgae known for its polysaccharides exhibit potent biomedical properties and its potential as an anti-inflammatory agent has increased in the recent past as inflammation is a major pathology noted in many chronic diseases. PURPOSE The present study investigates the anti-inflammatory potential of a sulfated polysaccharide (PS) isolated from the marine algae Turbinaria ornata collected from the Indian waters on LPS induced inflammation in RAW 264.7 macrophages. STUDY DESIGN AND METHODS PS isolated from the macroalgae was characterized using ESI(MS) and was screened for its antioxidant and anti-inflammatory potential in RAW 264.7 cells by assessing markers of oxidative stress, and inflammation. RESULTS LPS significantly increased the levels of LPO and LDH in RAW 264.7 cells which were significantly reduced in PS pre-treatment groups. Pretreatment significantly increased the antioxidants GSH and SOD and significantly reduced mRNA levels of IL6 and TNFα in vitro confirming its anti-inflammatory potential. NFκB and iNOS were significantly modulated by PS confirming the probable mode of action. CONCLUSION Altogether, it can be concluded that PS isolated from Turbinaria ornata collected from the Southeast Coast of India exhibits antioxidant and anti-inflammatory potential probably mediated by the sulfated polysaccharide containing glucopyranose and fucopyranose moieties.
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Affiliation(s)
- Meenakshi Bhardwaj
- Natural Products Research Laboratory, Department of Biotechnology, School of Life Sciences, Pondicherry University, Puducherry 605014, India
| | - Padmavathy T K
- Natural Products Research Laboratory, Department of Biotechnology, School of Life Sciences, Pondicherry University, Puducherry 605014, India
| | - Sugumar Mani
- Natural Products Research Laboratory, Department of Biotechnology, School of Life Sciences, Pondicherry University, Puducherry 605014, India
| | - Malarvizhi R
- Natural Products Research Laboratory, Department of Biotechnology, School of Life Sciences, Pondicherry University, Puducherry 605014, India
| | - Veeresh Kumar Sali
- Natural Products Research Laboratory, Department of Biotechnology, School of Life Sciences, Pondicherry University, Puducherry 605014, India
| | - Hannah R Vasanthi
- Natural Products Research Laboratory, Department of Biotechnology, School of Life Sciences, Pondicherry University, Puducherry 605014, India.
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13
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Rütter M, Milošević N, David A. Say no to drugs: Bioactive macromolecular therapeutics without conventional drugs. J Control Release 2020; 330:1191-1207. [PMID: 33207257 DOI: 10.1016/j.jconrel.2020.11.026] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2020] [Revised: 11/12/2020] [Accepted: 11/13/2020] [Indexed: 12/17/2022]
Abstract
The vast majority of nanomedicines (NM) investigated today consists of a macromolecular carrier and a drug payload (conjugated or encapsulated), with a purpose of preferential delivery of the drug to the desired site of action, either through passive accumulation, or by active targeting via ligand-receptor interaction. Several drug delivery systems (DDS) have already been approved for clinical use. However, recent reports are corroborating the notion that NM do not necessarily need to include a drug payload, but can exert biological effects through specific binding/blocking of important target proteins at the site of action. The seminal work of Kopeček et al. on N-(2-hydroxypropyl)methacrylamide (HPMA) copolymers containing biorecognition motifs (peptides or oligonucleotides) for crosslinking cell surface non-internalizing receptors of malignant cells and inducing their apoptosis, without containing any low molecular weight drug, led to the definition of a special group of NM, termed Drug-Free Macromolecular Therapeutics (DFMT). Systems utilizing this approach are typically designed to employ pendant targeting-ligands on the same macromolecule to facilitate multivalent interactions with receptors. The lack of conventional small molecule drugs reduces toxicity and adverse effects at off-target sites. In this review, we describe different types of DFMT that possess biological activity without attached low molecular weight drugs. We classified the relevant research into several groups by their mechanisms of action, and compare the advantages and disadvantages of these different approaches. We show that identification of target sites, specificity of attached targeting ligands, binding affinity and the synthesis of carriers of defined size and ligand spacing are crucial aspects of DFMT development. We further discuss how knowledge in the field of NM accumulated in the past few decades can help in the design of a successful DFMT to speed up the translation into clinical practice.
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Affiliation(s)
- Marie Rütter
- Department of Clinical Biochemistry and Pharmacology, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, 84105, Israel
| | - Nenad Milošević
- Department of Clinical Biochemistry and Pharmacology, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, 84105, Israel
| | - Ayelet David
- Department of Clinical Biochemistry and Pharmacology, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, 84105, Israel.
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14
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Achazi K, Haag R, Ballauff M, Dernedde J, Kizhakkedathu JN, Maysinger D, Multhaup G. Wechselwirkung von Polyelektrolyt‐Architekturen mit Proteinen und Biosystemen. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202006457] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Katharina Achazi
- Institut für Chemie und Biochemie Freie Universität Berlin Takustraße 3 14195 Berlin Deutschland
| | - Rainer Haag
- Institut für Chemie und Biochemie Freie Universität Berlin Takustraße 3 14195 Berlin Deutschland
| | - Matthias Ballauff
- Institut für Chemie und Biochemie Freie Universität Berlin Takustraße 3 14195 Berlin Deutschland
- IRIS Adlershof Humboldt-Universität zu Berlin Zum Großen Windkanal 6 12489 Berlin Deutschland
| | - Jens Dernedde
- Charité-Universitätsmedizin Berlin Institut für Laboratoriumsmedizin Klinische Chemie und Pathobiochemie CVK Augustenburger Platz 1 13353 Berlin Deutschland
| | - Jayachandran N. Kizhakkedathu
- Centre for Blood Research Department of Pathology and Laboratory Medicine Life Science Institute Department of Chemistry School of Biomedical Engineering University of British Columbia Vancouver V6T 1Z3 Kanada
| | - Dusica Maysinger
- Department of Pharmacology and Therapeutics McGill University Montreal H3G 1Y6 Kanada
| | - Gerd Multhaup
- Department of Pharmacology and Therapeutics McGill University Montreal H3G 1Y6 Kanada
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15
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Sun W, Jin S, Zhang A, Huang J, Li Y, Liu X, Chen H. Vascular cell responses to silicone surfaces grafted with heparin-like polymers: surface chemical composition vs. topographic patterning. J Mater Chem B 2020; 8:9151-9161. [PMID: 32945818 DOI: 10.1039/d0tb01000f] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2024]
Abstract
Heparin-like polymers are promising synthetic materials with biological functionalities, such as anticoagulant ability, growth factor binding to regulate cellular functions, and inflammation mediation, similar to heparin. The biocompatibility of heparin-like polymers with well-defined chemical structures has inspired many researchers to design heparin-like surfaces to explore their biological applications. The concept of the recombination of functional heparin structural units (sulfonate- and glyco-containing units) was proven to be successful in designing heparin-mimicking surfaces. However, besides surface structural units, topographic patterning is also an important contributor to the biological activity of the surfaces modified with heparin-like polymers. In this work, both surface structural units and topographic patterning were taken into account to investigate the vascular cell behaviors on the silicone surfaces. A facile method for the production of patterned bromine-containing polydimethylsiloxane surface (PDMS-Br) was developed from a one-step multicomponent thermocuring procedure and replica molding using a nanohole-arrayed silicon template. Different structural units of heparin-like polymers, i.e. homopolymer of sulfonate-containing sodium 4-vinylbenzenesulfonate (pSS), homopolymer of glyco-containing 2-(methacrylamido)glucopyranose (pMAG), and copolymers of MAG and SS (pSG), were then introduced on the flat and patterned PDMS-Br surface using visible light-induced graft polymerization. For the flat surfaces, compared with the PDMS-Br surface, pSS-grafted and pSG-grafted surfaces significantly increased cell densities of both human umbilical vein endothelial cells (HUVECs) and human umbilical vein smooth muscle cells (HUVSMCs), indicating that they are "vascular cell-friendly". In contrast, the pMAG-grafted surface showed decreased cell attachment of both HUVECs and HUVSMCs, indicating that the pMAG-grafted surface is "vascular cell-resistant". Moreover, surface topographic patterning enhanced the cell responses to the corresponding flat surfaces. That is to say, surface patterning can make the "vascular cell-friendly" surface still friendly, and the "vascular cell-resistant" surface much more resistant. The combination of surface structural units and topographic patterning shows promise in the preparation of new heparin-like surfaces with improved cell compatibility that is suitable for blood-compatible biomaterials.
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Affiliation(s)
- Wei Sun
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Ren-Ai Road, Suzhou 215123, P. R. China.
| | - Sheng Jin
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Ren-Ai Road, Suzhou 215123, P. R. China.
| | - Aiyang Zhang
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Ren-Ai Road, Suzhou 215123, P. R. China.
| | - Jialei Huang
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Ren-Ai Road, Suzhou 215123, P. R. China.
| | - Yuepeng Li
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Ren-Ai Road, Suzhou 215123, P. R. China.
| | - Xiaoli Liu
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Ren-Ai Road, Suzhou 215123, P. R. China.
| | - Hong Chen
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Ren-Ai Road, Suzhou 215123, P. R. China.
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16
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La CC, Takeuchi LE, Abbina S, Vappala S, Abbasi U, Kizhakkedathu JN. Targeting Biological Polyanions in Blood: Strategies toward the Design of Therapeutics. Biomacromolecules 2020; 21:2595-2621. [DOI: 10.1021/acs.biomac.0c00654] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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17
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Bochenek M, Oleszko-Torbus N, Wałach W, Lipowska-Kur D, Dworak A, Utrata-Wesołek A. Polyglycidol of Linear or Branched Architecture Immobilized on a Solid Support for Biomedical Applications. POLYM REV 2020. [DOI: 10.1080/15583724.2020.1720233] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Marcelina Bochenek
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, Zabrze, Poland
| | | | - Wojciech Wałach
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, Zabrze, Poland
| | - Daria Lipowska-Kur
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, Zabrze, Poland
| | - Andrzej Dworak
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, Zabrze, Poland
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18
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Zamboulis A, Nakiou EA, Christodoulou E, Bikiaris DN, Kontonasaki E, Liverani L, Boccaccini AR. Polyglycerol Hyperbranched Polyesters: Synthesis, Properties and Pharmaceutical and Biomedical Applications. Int J Mol Sci 2019; 20:E6210. [PMID: 31835372 PMCID: PMC6940955 DOI: 10.3390/ijms20246210] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Revised: 12/02/2019] [Accepted: 12/04/2019] [Indexed: 12/13/2022] Open
Abstract
In a century when environmental pollution is a major issue, polymers issued from bio-based monomers have gained important interest, as they are expected to be environment-friendly, and biocompatible, with non-toxic degradation products. In parallel, hyperbranched polymers have emerged as an easily accessible alternative to dendrimers with numerous potential applications. Glycerol (Gly) is a natural, low-cost, trifunctional monomer, with a production expected to grow significantly, and thus an excellent candidate for the synthesis of hyperbranched polyesters for pharmaceutical and biomedical applications. In the present article, we review the synthesis, properties, and applications of glycerol polyesters of aliphatic dicarboxylic acids (from succinic to sebacic acids) as well as the copolymers of glycerol or hyperbranched polyglycerol with poly(lactic acid) and poly(ε-caprolactone). Emphasis was given to summarize the synthetic procedures (monomer molar ratio, used catalysts, temperatures, etc.,) and their effect on the molecular weight, solubility, and thermal and mechanical properties of the prepared hyperbranched polymers. Their applications in pharmaceutical technology as drug carries and in biomedical applications focusing on regenerative medicine are highlighted.
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Affiliation(s)
- Alexandra Zamboulis
- Laboratory of Polymer Chemistry & Technology, Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (A.Z.); (E.A.N.); (E.C.)
| | - Eirini A. Nakiou
- Laboratory of Polymer Chemistry & Technology, Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (A.Z.); (E.A.N.); (E.C.)
| | - Evi Christodoulou
- Laboratory of Polymer Chemistry & Technology, Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (A.Z.); (E.A.N.); (E.C.)
| | - Dimitrios N. Bikiaris
- Laboratory of Polymer Chemistry & Technology, Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (A.Z.); (E.A.N.); (E.C.)
| | - Eleana Kontonasaki
- Department of Dentistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece;
| | - Liliana Liverani
- Institute of Biomaterials, Department of Material Science and Engineering, University of Erlangen-Nuremberg, Cauerstr. 6, 91058 Erlangen, Germany;
| | - Aldo R. Boccaccini
- Institute of Biomaterials, Department of Material Science and Engineering, University of Erlangen-Nuremberg, Cauerstr. 6, 91058 Erlangen, Germany;
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