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PEGylation Prolongs the Half-Life of Equine Anti-SARS-CoV-2 Specific F(ab') 2. Int J Mol Sci 2023; 24:ijms24043387. [PMID: 36834803 PMCID: PMC9963672 DOI: 10.3390/ijms24043387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 01/13/2023] [Accepted: 02/03/2023] [Indexed: 02/11/2023] Open
Abstract
Therapeutic antibodies-F(ab')2 obtained from hyperimmune equine plasma could treat emerging infectious diseases rapidly because of their high neutralization activity and high output. However, the small-sized F(ab')2 is rapidly eliminated by blood circulation. This study explored PEGylation strategies to maximize the half-life of equine anti-SARS-CoV-2 specific F(ab')2. Equine anti-SARS-CoV-2 specific F(ab')2 were combined with 10 KDa MAL-PEG-MAL in optimum conditions. Specifically, there were two strategies: Fab-PEG and Fab-PEG-Fab, F(ab')2 bind to a PEG or two PEG, respectively. A single ion exchange chromatography step accomplished the purification of the products. Finally, the affinity and neutralizing activity was evaluated by ELISA and pseudovirus neutralization assay, and ELISA detected the pharmacokinetic parameters. The results displayed that equine anti-SARS-CoV-2 specific F(ab')2 has high specificity. Furthermore, PEGylation F(ab')2-Fab-PEG-Fab had a longer half-life than specific F(ab')2. The serum half-life of Fab-PEG-Fab, Fab-PEG, and specific F(ab')2 were 71.41 h, 26.73 h, and 38.32 h, respectively. The half-life of Fab-PEG-Fab was approximately two times as long as the specific F(ab')2. Thus far, PEGylated F(ab')2 has been prepared with high safety, high specificity, and a longer half-life, which could be used as a potential treatment for COVID-19.
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Abbasi S, Farahani H, Lanjanian H, Taheri M, Firoozpour L, Davoodi J, Pirkalkhoran S, Riazi G, Pooyan S. Site Directed Disulfide PEGylation of Interferon-β-1b with Fork Peptide Linker. Bioconjug Chem 2020; 31:708-720. [PMID: 31951391 DOI: 10.1021/acs.bioconjchem.9b00839] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The attachment of PEG to biopharmaceuticals has been applied for enhancement of bioavailability and improved stability. The PEG polymer is highly hydrated; thus effective attachment to inaccessible sites could be hindered. We have devised a scheme to address this issue by introducing a considerable distance between PEG and protein by addition of a linear peptide, appended to long chained reactive linkers. Second, the position of PEG conjugation directly affects biological activity. Accordingly, a disulfide bond could be considered as an ideal choice for site directed PEGylation; but reactivity of both thiol moieties to bridging reagent is critical for maintenance of protein structure. In our design, a forked structure with two arms provides essential flexibility to account for dissociation of reduced cysteines. An efficient yield for disulfide PEGylation of IFN-β1b was attained and specificity, biophysical characterization, biological activity, and pharmacokinetics were surveyed.
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Affiliation(s)
- Shayan Abbasi
- Institute of Biochemistry and Biophysics, University of Tehran, PO Code 1417614335, Tehran, Iran.,Rooyan Darou Pharmaceutical Company, PO Code 15996-89111, Tehran, Iran
| | - Homa Farahani
- Department of Microbiology, School of Biology, Faculty of Science, University of Tehran, PO Code 1417466191, Tehran, Iran
| | - Hossein Lanjanian
- Institute of Biochemistry and Biophysics, University of Tehran, PO Code 1417614335, Tehran, Iran
| | - Mohammad Taheri
- Rooyan Darou Pharmaceutical Company, PO Code 15996-89111, Tehran, Iran
| | - Loghman Firoozpour
- Department of Medicinal Chemistry, Faculty of Pharmacy and Pharmaceutical Sciences Research Center, Tehran University of Medical Sciences, PO Code 14174, Tehran, Iran
| | - Jamshid Davoodi
- Institute of Biochemistry and Biophysics, University of Tehran, PO Code 1417614335, Tehran, Iran
| | - Sama Pirkalkhoran
- Department of Biology, Faculty of Basic Science, Islamic Azad University of Central Tehran Branch, PO Code 1477893855, Tehran, Iran
| | - GholamHossein Riazi
- Institute of Biochemistry and Biophysics, University of Tehran, PO Code 1417614335, Tehran, Iran
| | - Shahriar Pooyan
- Institute of Biochemistry and Biophysics, University of Tehran, PO Code 1417614335, Tehran, Iran.,Rooyan Darou Pharmaceutical Company, PO Code 15996-89111, Tehran, Iran
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Scomparin A, Florindo HF, Tiram G, Ferguson EL, Satchi-Fainaro R. Two-step polymer- and liposome-enzyme prodrug therapies for cancer: PDEPT and PELT concepts and future perspectives. Adv Drug Deliv Rev 2017; 118:52-64. [PMID: 28916497 DOI: 10.1016/j.addr.2017.09.011] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Revised: 08/17/2017] [Accepted: 09/07/2017] [Indexed: 12/14/2022]
Abstract
Polymer-directed enzyme prodrug therapy (PDEPT) and polymer enzyme liposome therapy (PELT) are two-step therapies developed to provide anticancer drugs site-selective intratumoral accumulation and release. Nanomedicines, such as polymer-drug conjugates and liposomal drugs, accumulate in the tumor site due to extravasation-dependent mechanism (enhanced permeability and retention - EPR - effect), and further need to cross the cellular membrane and release their payload in the intracellular compartment. The subsequent administration of a polymer-enzyme conjugate able to accumulate in the tumor tissue and to trigger the extracellular release of the active drug showed promising preclinical results. The development of polymer-enzyme, polymer-drug conjugates and liposomal drugs had undergone a vast advancement over the past decades. Several examples of enzyme mimics for in vivo therapy can be found in the literature. Moreover, polymer therapeutics often present an enzyme-sensitive mechanism of drug release. These nanomedicines can thus be optimal substrates for PDEPT and this review aims to provide new insights and stimuli toward the future perspectives of this promising combination.
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Affiliation(s)
- Anna Scomparin
- Department of Physiology and Pharmacology, Sackler School of Medicine, Room 607, Tel Aviv University, Tel Aviv 69978, Israel
| | - Helena F Florindo
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Lisbon, Portugal
| | - Galia Tiram
- Department of Physiology and Pharmacology, Sackler School of Medicine, Room 607, Tel Aviv University, Tel Aviv 69978, Israel
| | - Elaine L Ferguson
- Advanced Therapies Group, Oral and Biomedical Sciences, School of Dentistry, College of Biomedical and Life Sciences, Cardiff University, Heath Park, Cardiff CF14 4XY, UK
| | - Ronit Satchi-Fainaro
- Department of Physiology and Pharmacology, Sackler School of Medicine, Room 607, Tel Aviv University, Tel Aviv 69978, Israel; Sagol School of Neuroscience, Tel Aviv University, Tel Aviv, Israel.
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Zhao J, Lin JD, Chen JC, Chen G, Li XL, Wang XQ, Chen MX. α-chymotrypsin activated and stabilized by self-assembled polypseudorotaxane fabricated with bis-thiolated poly(ethylene glycol) and α-cyclodextrin: Spectroscopic and mechanistic analysis. Int J Biol Macromol 2017; 102:1266-1273. [PMID: 28495630 DOI: 10.1016/j.ijbiomac.2017.05.024] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2017] [Revised: 05/04/2017] [Accepted: 05/05/2017] [Indexed: 10/19/2022]
Abstract
The self-assembled polypseudorotaxane (PPRX) fabricated with bis-thiolated poly(ethylene glycol) (PEG) and α-cyclodextrin (α-CyD) acted as an activator for α-chymotrypsin (CT) and retained the activity of CT for a long time up to 7days. The stabilization mechanism was studied, and the interaction between CT and PPRX was analyzed by using circular dichroism, fluorescence spectra and X-ray powder diffraction (XRD). The bis-thiolated PEG and its assembled PPRX with α-CyD exhibited the interaction with the C-terminal region of the CT's B-chain probably through PEGylation of the surface disulfide bridge of CT. It caused the aromatic chromophores more exposed to the hydrophilic microenvironment, leading to conformational variation of CT that was revealed by spectroscopic analysis. It rendered the peptide chains in a more flexible and active state. As a comparison, the non-thiolated components could not decorate the surface of CT and performed almost no effect on its stability, which demonstrated that the decoration of the surface disulfide bridge was a key factor in retaining the activity of CT. Due to the activation and stabilization effect, bis-thiolated PEG/α-CyD PPRX was an excellent soft-immobilized carrier for CT, and provided an intriguing method for enzyme's stabilization.
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Affiliation(s)
- Jun Zhao
- Department of Bioengineering and Biotechnology, College of Chemical Engineering, Huaqiao University, 668 Jimei Avenue, Amoy, 361021, China; Key Laboratory of Chemical Biology and Molecular Engineering (Huaqiao University), Fujian Province University, 668 Jimei Avenue, Amoy, 361021, China; Institute of Oil and Natural Products, Huaqiao University, 668 Jimei Avenue, Amoy, 361021, China.
| | - Ji-Duan Lin
- Department of Bioengineering and Biotechnology, College of Chemical Engineering, Huaqiao University, 668 Jimei Avenue, Amoy, 361021, China; Key Laboratory of Chemical Biology and Molecular Engineering (Huaqiao University), Fujian Province University, 668 Jimei Avenue, Amoy, 361021, China
| | - Jia-Chen Chen
- Department of Bioengineering and Biotechnology, College of Chemical Engineering, Huaqiao University, 668 Jimei Avenue, Amoy, 361021, China
| | - Guo Chen
- Department of Bioengineering and Biotechnology, College of Chemical Engineering, Huaqiao University, 668 Jimei Avenue, Amoy, 361021, China; Key Laboratory of Chemical Biology and Molecular Engineering (Huaqiao University), Fujian Province University, 668 Jimei Avenue, Amoy, 361021, China
| | - Xia-Lan Li
- Department of Bioengineering and Biotechnology, College of Chemical Engineering, Huaqiao University, 668 Jimei Avenue, Amoy, 361021, China; Key Laboratory of Chemical Biology and Molecular Engineering (Huaqiao University), Fujian Province University, 668 Jimei Avenue, Amoy, 361021, China
| | - Xiao-Qin Wang
- Department of Bioengineering and Biotechnology, College of Chemical Engineering, Huaqiao University, 668 Jimei Avenue, Amoy, 361021, China; Key Laboratory of Chemical Biology and Molecular Engineering (Huaqiao University), Fujian Province University, 668 Jimei Avenue, Amoy, 361021, China; Institute of Oil and Natural Products, Huaqiao University, 668 Jimei Avenue, Amoy, 361021, China
| | - Ming-Xia Chen
- Department of Bioengineering and Biotechnology, College of Chemical Engineering, Huaqiao University, 668 Jimei Avenue, Amoy, 361021, China; Key Laboratory of Chemical Biology and Molecular Engineering (Huaqiao University), Fujian Province University, 668 Jimei Avenue, Amoy, 361021, China
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