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Controlled post-polymerization modification through modulation of repeating unit reactivity: Proof of concept discussed using linear polyethylenimine example. POLYMER 2021. [DOI: 10.1016/j.polymer.2021.123452] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Pethő L, Kasza G, Lajkó E, Láng O, Kőhidai L, Iván B, Mező G. Amphiphilic drug-peptide-polymer conjugates based on poly(ethylene glycol) and hyperbranched polyglycerol for epidermal growth factor receptor targeting: the effect of conjugate aggregation on in vitro activity. SOFT MATTER 2020; 16:5759-5769. [PMID: 32530018 DOI: 10.1039/d0sm00428f] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Numerous peptide-drug conjugates have been developed over the years to enhance the specificity and selectivity of chemotherapeutic agents for tumour cells. In our present work, epidermal growth factor receptor targeting drug-peptide conjugates were prepared using GE11 and D4 peptides. To ensure the drug release, the cathepsin B labile GFLG spacer was incorporated between the targeting peptide and the drug molecule (daunomycin), which significantly increased the hydrophobicity and thereby decreased the water solubility of the conjugates. To overcome the solubility problem, drug-peptide-polymer conjugates with systematic structural variations were prepared, by linking poly(ethylene glycol) (PEG) or a well-defined amino-monofunctional hyperbranched polyglycerol (HbPG) directly or via a pentaglycine spacer to the targeting peptides. All the drug-peptide-polymer conjugates were water-soluble as confirmed by turbidimetric measurements. The results of the in vitro cell viability and cellular uptake measurements on HT-29 human colon adenocarcinoma cells proved that the HbPG and the PEG highly influenced the biological activity. The conjugation of the hydrophilic polymer resulted in the amphiphilic character of the conjugates, which led to self-aggregation and nanoparticle formation that decreased the cellular uptake above a specific aggregation concentration. On the other hand, the hydrodynamic volume and the different polymer chain topology of the linear PEG and the compact hyperbranched HbPG also played an important role in the biological activity. Therefore, in similar systems, the investigation of the colloidal properties is inevitable for the better understanding of the biological activity, which can reveal the structure-activity relationship of amphiphilic drug-peptide-polymer conjugates for efficient tumour targeting.
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Affiliation(s)
- Lilla Pethő
- MTA-ELTE Research Group of Peptide Chemistry, Eötvös Loránd University, H-1117 Budapest, Pázmány Péter sétány 1/A, Hungary.
| | - György Kasza
- Polymer Chemistry Research Group, Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, H-1117 Budapest, Magyar tudósok körútja 2, Hungary.
| | - Eszter Lajkó
- Department of Genetics, Cell- and Immunobiology, Semmelweis University, H-1089 Budapest, Nagyvárad tér 4, Hungary
| | - Orsolya Láng
- Department of Genetics, Cell- and Immunobiology, Semmelweis University, H-1089 Budapest, Nagyvárad tér 4, Hungary
| | - László Kőhidai
- Department of Genetics, Cell- and Immunobiology, Semmelweis University, H-1089 Budapest, Nagyvárad tér 4, Hungary
| | - Béla Iván
- Polymer Chemistry Research Group, Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, H-1117 Budapest, Magyar tudósok körútja 2, Hungary.
| | - Gábor Mező
- MTA-ELTE Research Group of Peptide Chemistry, Eötvös Loránd University, H-1117 Budapest, Pázmány Péter sétány 1/A, Hungary. and Eötvös Loránd University, Faculty of Science, Institute of Chemistry, H-1117 Budapest, Pázmány Péter sétány 1/A, Hungary
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Kendrick-Williams LL, Harth E. Second-Generation Nanosponges: Nanonetworks in Controlled Dimensions via Backbone Ketoxime and Alkoxyamine Cross-Links for Controlled Release. Macromolecules 2018. [DOI: 10.1021/acs.macromol.8b02244] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Laken L. Kendrick-Williams
- Department of Chemistry, Center of Excellence in Polymer Chemistry (CEPC), University of Houston, 3585 Cullen Blvd., Houston, Texas 77030, United States
- Department of Chemistry, Vanderbilt University, 7665 Stevenson Center, Nashville, Tennessee 37235, United States
| | - Eva Harth
- Department of Chemistry, Center of Excellence in Polymer Chemistry (CEPC), University of Houston, 3585 Cullen Blvd., Houston, Texas 77030, United States
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Hyperbranched polyglycerols containing amine groups — Synthesis, characterization and carbon dioxide capture. J CO2 UTIL 2018. [DOI: 10.1016/j.jcou.2018.07.010] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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Wu H, Yin T, Li K, Wang R, Chen Y, Jing L. Encapsulation property of hyperbranched polyglycerols as prospective drug delivery systems. Polym Chem 2018. [DOI: 10.1039/c7py01419h] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Hyperbranched polyglycerols (hbPGs) were investigated as nanocarriers to encapsulate and deliver guest molecules.
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Affiliation(s)
- Haigang Wu
- School of Biomedical Engineering
- Shanghai Jiao Tong University
- Shanghai
- China
- School of Pharmacy
| | - Ting Yin
- School of Electronic Information and Electrical Engineering
- Shanghai Jiao Tong University
- Shanghai
- China
| | - Ke Li
- University of Michigan-Shanghai Jiao Tong University Joint Institute
- Shanghai Jiao Tong University
- Shanghai
- China
| | - Ruibin Wang
- Instrumental Analysis Center
- Shanghai Jiao Tong University
- Shanghai
- China
| | - Yantian Chen
- School of Pharmacy
- Shanghai Jiao Tong University
- Shanghai
- China
| | - Lili Jing
- School of Pharmacy
- Shanghai Jiao Tong University
- Shanghai
- China
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Lockhart JN, Hmelo AB, Harth E. Electron beam lithography of poly(glycidol) nanogels for immobilization of a three-enzyme cascade. Polym Chem 2018. [DOI: 10.1039/c7py01904a] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Nanogels devices with spatial confinement of multiple enzymes resulted in retention of bioactivity after 30 days with a 5 fold higher chromogenic output compared to free enzyme cascade devices.
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Affiliation(s)
- Jacob N. Lockhart
- Department of Chemistry
- Vanderbilt Institute of Nanoscale Science and Engineering
- Vanderbilt University
- 7665 Stevenson Center
- Nashville
| | - Anthony B. Hmelo
- Department of Chemistry
- Vanderbilt Institute of Nanoscale Science and Engineering
- Vanderbilt University
- 7665 Stevenson Center
- Nashville
| | - Eva Harth
- Department of Chemistry
- Center of Excellence in Polymer Research
- 406 STL Building
- University of Houston
- Houston
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Kasza G, Kali G, Domján A, Pethő L, Szarka G, Iván B. Synthesis of Well-Defined Phthalimide Monofunctional Hyperbranched Polyglycerols and Its Transformation to Various Conjugation Relevant Functionalities. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b00413] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
| | - Gergely Kali
- Organic
Macromolecular Chemistry, Saarland University, Campus C4.2, 166123 Saarbrücken, Germany
| | | | - Lilla Pethő
- MTA-ELTE
Research Group of Peptide Chemistry, Hungarian Academy of Sciences, Pázmány Péter sétány 1/A, H-1117 Budapest, Hungary
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