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Dubey RK, Vats R, Brzoska T, Kaminski TW, Katoch O, Tejero J, Njikang G, Paderi J, Sundd P. Subcutaneous injection of IHP-102 prevents lung vaso-occlusion in sickle cell disease mice. Haematologica 2024; 109:1259-1263. [PMID: 37855052 PMCID: PMC10985437 DOI: 10.3324/haematol.2023.283716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Accepted: 10/12/2023] [Indexed: 10/20/2023] Open
Abstract
Not available.
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Affiliation(s)
- Rikesh K. Dubey
- Thrombosis and Hemostasis Program, VERSITI Blood Research Institute, Milwaukee, WI
- Vascular Medicine Institute, University of Pittsburgh School of Medicine, Pittsburgh, PA
| | - Ravi Vats
- Vascular Medicine Institute, University of Pittsburgh School of Medicine, Pittsburgh, PA
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA
| | - Tomasz Brzoska
- Vascular Medicine Institute, University of Pittsburgh School of Medicine, Pittsburgh, PA
- Division of Hematology and Oncology, University of Pittsburgh, Pittsburgh, PA
| | - Tomasz W. Kaminski
- Thrombosis and Hemostasis Program, VERSITI Blood Research Institute, Milwaukee, WI
- Vascular Medicine Institute, University of Pittsburgh School of Medicine, Pittsburgh, PA
| | - Omika Katoch
- Thrombosis and Hemostasis Program, VERSITI Blood Research Institute, Milwaukee, WI
- Vascular Medicine Institute, University of Pittsburgh School of Medicine, Pittsburgh, PA
| | - Jesus Tejero
- Vascular Medicine Institute, University of Pittsburgh School of Medicine, Pittsburgh, PA
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA
- Pulmonary Allergy and Critical Care Medicine, University of Pittsburgh, Pittsburgh, PA
| | | | | | - Prithu Sundd
- Thrombosis and Hemostasis Program, VERSITI Blood Research Institute, Milwaukee, WI
- Vascular Medicine Institute, University of Pittsburgh School of Medicine, Pittsburgh, PA
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA
- Pulmonary Allergy and Critical Care Medicine, University of Pittsburgh, Pittsburgh, PA
- Sickle Cell Center of Excellence, University of Pittsburgh, Pittsburgh, PA, USA RKD and RV contributed equally as first authors
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Abstract
This Article reports the molecular imprinting of polymer single-chain particles that have a radius ∼3.7 nm. For this, the template L-phenylalanine anilide or L-ΦAA and a diblock copolymer PtBA-b-P(CEMA-r-CA) were used. Here, PtBA denotes poly(tert-butyl acrylate), and P(CEMA-r-CA) denotes a random block consisting of cinnamoyloxyethyl methacrylate (CEMA) and carboxyl-bearing (CA) units. In CHCl(3)/cyclohexane (CHX) with 64 vol % of CHX or at f(CHX) = 64%, a block-selective solvent for PtBA, PtBA-b-P(CEMA-r-CA) formed spherical micelles. The core consisted of the insoluble P(CEMA-r-CA) block and L-ΦAA, which complexed with the CA groups. Pumping slowly this micellar solution into stirred CHCl(3)/(CHX) at f(CHX) = 64% triggered micelle dissociation into single-chain micelles, which comprised presumably a solubilized PtBA tail and a collapsed P(CEMA-r-CA)/L-ΦAA head. Because the solvent reservoir was under constant UV irradiation, the photo-cross-linkable units in the P(CEMA-r-CA) head cross-linked, and the single-chain micelles were converted into cross-linked single-chain micelles or tadpoles. Synchronizing the micelle addition and photoreaction rates allowed the preparation, from this protocol, of essentially pure tadpoles at high final polymer concentrations. Imprinted tadpoles were procured after L-ΦAA was extracted from the tadpole heads. Under optimized conditions, the produced imprinted tadpoles had exceptionally high binding capacity and high selectivity for L-ΦAA. In addition, the rates of L-ΦAA release from and rebinding by the particles were high.
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Affiliation(s)
- Gabriel Njikang
- Department of Chemistry, Queen's University, 90 Bader Lane, Kingston, Ontario K7L 3N6, Canada
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Affiliation(s)
- Gabriel Njikang
- Department of Chemistry, Queen’s University, 90 Bader Lane, Kingston, Ontario, Canada K7L 3N6
| | - Dehui Han
- Department of Chemistry, Queen’s University, 90 Bader Lane, Kingston, Ontario, Canada K7L 3N6
| | - Jian Wang
- Department of Chemistry, Queen’s University, 90 Bader Lane, Kingston, Ontario, Canada K7L 3N6
| | - Guojun Liu
- Department of Chemistry, Queen’s University, 90 Bader Lane, Kingston, Ontario, Canada K7L 3N6
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Affiliation(s)
- Jiwen Hu
- Department of Chemistry, Queen’s University, 90 Bader Lane, Kingston, Ontario, Canada K7L 3N
| | - Gabriel Njikang
- Department of Chemistry, Queen’s University, 90 Bader Lane, Kingston, Ontario, Canada K7L 3N
| | - Guojun Liu
- Department of Chemistry, Queen’s University, 90 Bader Lane, Kingston, Ontario, Canada K7L 3N
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Affiliation(s)
- Gabriel Njikang
- Department of Chemistry, Queen’s University, 90 Bader Lane, Kingston, Ontario, Canada K7L 3N6
| | - Guojun Liu
- Department of Chemistry, Queen’s University, 90 Bader Lane, Kingston, Ontario, Canada K7L 3N6
| | - Scott A. Curda
- Department of Chemistry, Queen’s University, 90 Bader Lane, Kingston, Ontario, Canada K7L 3N6
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Njikang G, Gauthier M, Li J. Arborescent polystyrene-graft-poly(2-vinylpyridine) copolymers as unimolecular micelles: Solubilization studies. POLYMER 2008. [DOI: 10.1016/j.polymer.2008.01.016] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Affiliation(s)
- Gabriel Njikang
- Department of Chemistry, Queen's University, 90 Bader Lane, Kingston, Ontario, Canada K7L 3N6, and Department of Physics, Queen's University, Kingston, Ontario, Canada K7L 3N6
| | - Guojun Liu
- Department of Chemistry, Queen's University, 90 Bader Lane, Kingston, Ontario, Canada K7L 3N6, and Department of Physics, Queen's University, Kingston, Ontario, Canada K7L 3N6
| | - Jun Gao
- Department of Chemistry, Queen's University, 90 Bader Lane, Kingston, Ontario, Canada K7L 3N6, and Department of Physics, Queen's University, Kingston, Ontario, Canada K7L 3N6
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