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Davis E, Caparco AA, Jones E, Steinmetz NF, Pokorski JK. Study of uricase-polynorbornene conjugates derived from grafting-from ring-opening metathesis polymerization. J Mater Chem B 2024; 12:2197-2206. [PMID: 38323642 DOI: 10.1039/d3tb02726k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2024]
Abstract
PEGylation has been the 'gold standard' in bioconjugation due to its ability to improve the pharmacokinetics and pharmacodynamics of native proteins. However, growing clinical evidence of hypersensitivity reactions to PEG due to pre-existing anti-PEG antibodies in healthy humans have raised concerns. Advancements in controlled polymerization techniques and conjugation chemistries have paved the way for the development of protein-polymer conjugates that can circumvent these adverse reactions while retaining the benefits of such modifications. Herein, we show the development of polynorbornene based bioconjugates of therapeutically relevant urate oxidase (UO) enzymes used in the treatment of gout synthesized by grafting-from ring-opening metathesis polymerization (ROMP). Notably, these conjugates exhibit comparable levels of bioactivity to PEGylated UO and demonstrate increased stability across varying temperatures and pH conditions. Immune recognition of conjugates by anti-UO antibodies reveal low protein immunogenicity following the conjugation process. Additionally, UO conjugates employing zwitterionic polynorbornene successfully avoid recognition by anti-PEG antibodies, further highlighting a potential replacement for PEG.
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Affiliation(s)
- Elizabathe Davis
- Department of NanoEngineering, University of California San Diego, La Jolla, CA 92093, USA.
| | - Adam A Caparco
- Center for Nano-ImmunoEngineering, University of California San Diego, La Jolla, CA 92093, USA
| | - Elizabeth Jones
- Department of NanoEngineering, University of California San Diego, La Jolla, CA 92093, USA.
| | - Nicole F Steinmetz
- Department of NanoEngineering, University of California San Diego, La Jolla, CA 92093, USA.
- Center for Nano-ImmunoEngineering, University of California San Diego, La Jolla, CA 92093, USA
- Institute for Materials Discovery and Design, University of California San Diego, La Jolla, CA 92093, USA
- Department of Bioengineering, University of California San Diego, La Jolla, CA 92093, USA
- Department of Radiology, University of California San Diego, La Jolla, CA 92093, USA
- Moores Cancer Center, University of California San Diego, La Jolla, CA 92093, USA
- Shu and K.C. Chien and Peter Farrell Collaboratory, University of California San Diego, La Jolla, CA 92093, USA
| | - Jonathan K Pokorski
- Department of NanoEngineering, University of California San Diego, La Jolla, CA 92093, USA.
- Center for Nano-ImmunoEngineering, University of California San Diego, La Jolla, CA 92093, USA
- Institute for Materials Discovery and Design, University of California San Diego, La Jolla, CA 92093, USA
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Chauhan P, V R, Kumar M, Molla R, Mishra SD, Basa S, Rai V. Chemical technology principles for selective bioconjugation of proteins and antibodies. Chem Soc Rev 2024; 53:380-449. [PMID: 38095227 DOI: 10.1039/d3cs00715d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2024]
Abstract
Proteins are multifunctional large organic compounds that constitute an essential component of a living system. Hence, control over their bioconjugation impacts science at the chemistry-biology-medicine interface. A chemical toolbox for their precision engineering can boost healthcare and open a gateway for directed or precision therapeutics. Such a chemical toolbox remained elusive for a long time due to the complexity presented by the large pool of functional groups. The precise single-site modification of a protein requires a method to address a combination of selectivity attributes. This review focuses on guiding principles that can segregate them to simplify the task for a chemical method. Such a disintegration systematically employs a multi-step chemical transformation to deconvolute the selectivity challenges. It constitutes a disintegrate (DIN) theory that offers additional control parameters for tuning precision in protein bioconjugation. This review outlines the selectivity hurdles faced by chemical methods. It elaborates on the developments in the perspective of DIN theory to demonstrate simultaneous regulation of reactivity, chemoselectivity, site-selectivity, modularity, residue specificity, and protein specificity. It discusses the progress of such methods to construct protein and antibody conjugates for biologics, including antibody-fluorophore and antibody-drug conjugates (AFCs and ADCs). It also briefs how this knowledge can assist in developing small molecule-based covalent inhibitors. In the process, it highlights an opportunity for hypothesis-driven routes to accelerate discoveries of selective methods and establish new targetome in the precision engineering of proteins and antibodies.
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Affiliation(s)
- Preeti Chauhan
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, 462 066, India.
| | - Ragendu V
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, 462 066, India.
| | - Mohan Kumar
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, 462 066, India.
| | - Rajib Molla
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, 462 066, India.
| | - Surya Dev Mishra
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, 462 066, India.
| | - Sneha Basa
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, 462 066, India.
| | - Vishal Rai
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, 462 066, India.
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