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Ahmed ZZ, Ahmadzadeh H, Zohuri GH. Microstructural, Thermal and Electrical Properties of Methyl Methacrylate and 1‐Hexene Copolymers Made by Dinuclear Ni‐Based Catalysts. ChemistrySelect 2021. [DOI: 10.1002/slct.202102047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Zainab Zahid Ahmed
- Department of Chemistry Faculty of Science Ferdowsi University of Mashhad Mashhad, PO Box 91775 Iran
| | - Hossein Ahmadzadeh
- Department of Chemistry Faculty of Science Ferdowsi University of Mashhad Mashhad, PO Box 91775 Iran
| | - Gholam Hossein Zohuri
- Department of Chemistry Faculty of Science Ferdowsi University of Mashhad Mashhad, PO Box 91775 Iran
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Newman MR, Russell SG, Schmitt CS, Marozas IA, Sheu TJ, Puzas JE, Benoit DSW. Multivalent Presentation of Peptide Targeting Groups Alters Polymer Biodistribution to Target Tissues. Biomacromolecules 2017; 19:71-84. [PMID: 29227674 DOI: 10.1021/acs.biomac.7b01193] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Drug delivery to bone is challenging, whereby drug distribution is commonly <1% of injected dose, despite development of several bone-targeted drug delivery systems specific to hydroxyapatite. These bone-targeted drug delivery systems still suffer from poor target cell localization within bone, as at any given time overall bone volume is far greater than acutely remodeling bone volume, which harbors relevant cell targets (osteoclasts or osteoblasts). Thus, there exists a need to target bone-acting drugs specifically to sites of bone remodeling. To address this need, this study synthesized oligo(ethylene glycol) copolymers based on a peptide with high affinity to tartrate-resistant acid phosphatase (TRAP), an enzyme deposited by osteoclasts during the bone resorption phase of bone remodeling, which provides greater specificity relevant for bone cell drugging. Gradient and random peptide orientations, as well as polymer molecular weights, were investigated. TRAP-targeted, high molecular weight (Mn) random copolymers exhibited superior accumulation in remodeling bone, where fracture accumulation was observed for at least 1 week and accounted for 14% of tissue distribution. Intermediate and low Mn random copolymer accumulation was lower, indicating residence time depends on Mn. High Mn gradient polymers were cleared, with only 2% persisting at fractures after 1 week, suggesting TRAP binding depends on peptide density. Peptide density and Mn are easily modified in this versatile targeting platform, which can be applied to a range of bone drug delivery applications.
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Affiliation(s)
- Maureen R Newman
- Biomedical Engineering and ‡Chemical Engineering, University of Rochester , Rochester, New York 14627, United States.,Center for Musculoskeletal Research, ∥Department of Orthopaedics, ¶Center for Oral Biology, and ⊥Department of Biomedical Genetics, University of Rochester Medical Center , Rochester, New York 14642, United States
| | - Steven G Russell
- Biomedical Engineering and ‡Chemical Engineering, University of Rochester , Rochester, New York 14627, United States.,Center for Musculoskeletal Research, ∥Department of Orthopaedics, ¶Center for Oral Biology, and ⊥Department of Biomedical Genetics, University of Rochester Medical Center , Rochester, New York 14642, United States
| | - Christopher S Schmitt
- Biomedical Engineering and ‡Chemical Engineering, University of Rochester , Rochester, New York 14627, United States.,Center for Musculoskeletal Research, ∥Department of Orthopaedics, ¶Center for Oral Biology, and ⊥Department of Biomedical Genetics, University of Rochester Medical Center , Rochester, New York 14642, United States
| | - Ian A Marozas
- Biomedical Engineering and ‡Chemical Engineering, University of Rochester , Rochester, New York 14627, United States.,Center for Musculoskeletal Research, ∥Department of Orthopaedics, ¶Center for Oral Biology, and ⊥Department of Biomedical Genetics, University of Rochester Medical Center , Rochester, New York 14642, United States
| | - Tzong-Jen Sheu
- Biomedical Engineering and ‡Chemical Engineering, University of Rochester , Rochester, New York 14627, United States.,Center for Musculoskeletal Research, ∥Department of Orthopaedics, ¶Center for Oral Biology, and ⊥Department of Biomedical Genetics, University of Rochester Medical Center , Rochester, New York 14642, United States
| | - J Edward Puzas
- Biomedical Engineering and ‡Chemical Engineering, University of Rochester , Rochester, New York 14627, United States.,Center for Musculoskeletal Research, ∥Department of Orthopaedics, ¶Center for Oral Biology, and ⊥Department of Biomedical Genetics, University of Rochester Medical Center , Rochester, New York 14642, United States
| | - Danielle S W Benoit
- Biomedical Engineering and ‡Chemical Engineering, University of Rochester , Rochester, New York 14627, United States.,Center for Musculoskeletal Research, ∥Department of Orthopaedics, ¶Center for Oral Biology, and ⊥Department of Biomedical Genetics, University of Rochester Medical Center , Rochester, New York 14642, United States
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