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Mason M, Bisbal Lopez L, Bashiri F, Herrero A, Baron A, Bucci R, Pignataro L, Gennari C, Dal Corso A. Amine-Carbamate Self-Immolative Spacers Counterintuitively Release 3° Alcohol at Much Faster Rates than 1° Alcohol Payloads. Chembiochem 2024; 25:e202400174. [PMID: 38415320 DOI: 10.1002/cbic.202400174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Revised: 02/27/2024] [Accepted: 02/28/2024] [Indexed: 02/29/2024]
Abstract
Self-immolative (SI) spacers are degradable chemical connectors widely used in prodrugs and drug conjugates to release pharmaceutical ingredients in response to specific stimuli. Amine-carbamate SI spacers are particularly versatile, as they have been used to release different hydroxy cargos, ranging from 2° and 3° alcohols to phenols and oximes. In this work, we describe the ability of three amine-carbamate SI spacers to release three structurally similar imidazoquinoline payloads, bearing either a 1°, a 2° or a 3° alcohol as the leaving group. While the spacers showed comparable efficacy at releasing the 2° and 3° alcohols, the liberation of the 1° alcohol was much slower, unveiling a counterintuitive trend in nucleophilic acyl substitutions. The release of the 1° alcohol payload was only possible using a SI spacer bearing a pyrrolidine ring and a tertiary amine handle, which opens the way to future applications in drug delivery systems.
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Affiliation(s)
- Mattia Mason
- Dipartimento di Chimica, Università degli Studi di Milano, Via C. Golgi, 19, I, -20133, Milan, Italy
| | - Lydia Bisbal Lopez
- Dipartimento di Chimica, Università degli Studi di Milano, Via C. Golgi, 19, I, -20133, Milan, Italy
| | - Fazel Bashiri
- Dipartimento di Chimica, Università degli Studi di Milano, Via C. Golgi, 19, I, -20133, Milan, Italy
| | - Aurélie Herrero
- Dipartimento di Chimica, Università degli Studi di Milano, Via C. Golgi, 19, I, -20133, Milan, Italy
| | - Aurélien Baron
- Dipartimento di Chimica, Università degli Studi di Milano, Via C. Golgi, 19, I, -20133, Milan, Italy
| | - Raffaella Bucci
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Milano, via G. Venezian 21, 20133, Milan, Italy
| | - Luca Pignataro
- Dipartimento di Chimica, Università degli Studi di Milano, Via C. Golgi, 19, I, -20133, Milan, Italy
| | - Cesare Gennari
- Dipartimento di Chimica, Università degli Studi di Milano, Via C. Golgi, 19, I, -20133, Milan, Italy
| | - Alberto Dal Corso
- Dipartimento di Chimica, Università degli Studi di Milano, Via C. Golgi, 19, I, -20133, Milan, Italy
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Howe JM, Fang S, Watts KA, Xu F, Benjamin SR, Tumey LN. ValCitGlyPro-dexamethasone antibody conjugates selectively suppress the activation of human monocytes. RSC Med Chem 2023; 14:2348-2357. [PMID: 37974960 PMCID: PMC10650436 DOI: 10.1039/d3md00336a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2023] [Accepted: 09/18/2023] [Indexed: 11/19/2023] Open
Abstract
Glucocorticoids (GCs) are effective in treating autoimmune and inflammatory disorders but come with significant side effects, many of which are mediated by non-immunological cells. Therefore, there is rapidly growing interest in using antibody drug conjugate (ADC) technology to deliver GCs specifically to immune cells, thereby minimizing off-target side effects. Herein, we report the study of anti-CD11a, anti-CD38, and anti-TNFα ADCs to deliver dexamethasone to monocytes. We found that anti-CD11a and anti-CD38 were rapidly internalized by monocytes, while uptake of anti-TNFα depended on pre-activation with LPS. Using these antibodies were attached to a novel linker system, ValCitGlyPro-Dex (VCGP-Dex), that efficiently released dexamethasone upon lysosomal catabolism. This linker relies on lysosomal cathepsins to cleave after the ValCit sequence, thereby releasing a GlyPro-Dex species that undergoes rapid self-immolation to form dexamethasone. The resulting monocyte-targeting ADCs bearing this linker payload effectively suppressed LPS-induced NFκB activation and cytokine release in both a monocytic cell line (THP1) and in human PBMCs. Anti-TNFα_VCGP-Dex and anti-CD38_VCGP-Dex were particularly effective, suppressing ∼60-80% of LPS-induced IL-6 release from PBMCs at 3-10 μg mL-1 concentrations. In contrast, the corresponding isotype control ADC (anti-RSV) and the corresponding naked antibodies (anti-CD38 and anti-TNFα) resulted in only modest suppression (0-30%) of LPS-induced IL-6. Taken together, these results provide further evidence of the ability of glucocorticoid-ADCs to selectively suppress immune responses, and highlight the potential of two targets (CD38 and TNFα) for the development of novel immune-suppressing ADCs.
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Affiliation(s)
- Justin M Howe
- School of Pharmacy and Pharmaceutical Sciences, Binghamton University PO Box 6000 Binghamton NY 13902-6000 USA
| | - Siteng Fang
- School of Pharmacy and Pharmaceutical Sciences, Binghamton University PO Box 6000 Binghamton NY 13902-6000 USA
| | - Kelsey A Watts
- School of Pharmacy and Pharmaceutical Sciences, Binghamton University PO Box 6000 Binghamton NY 13902-6000 USA
| | - Fanny Xu
- School of Pharmacy and Pharmaceutical Sciences, Binghamton University PO Box 6000 Binghamton NY 13902-6000 USA
| | - Samantha R Benjamin
- School of Pharmacy and Pharmaceutical Sciences, Binghamton University PO Box 6000 Binghamton NY 13902-6000 USA
| | - L Nathan Tumey
- School of Pharmacy and Pharmaceutical Sciences, Binghamton University PO Box 6000 Binghamton NY 13902-6000 USA
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Pignataro L, Piarulli U. A Long Journey through Organic Chemistry – Celebrating Cesare Gennari's 70th Birthday. European J Org Chem 2022. [DOI: 10.1002/ejoc.202201160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Affiliation(s)
- Luca Pignataro
- Dipartimento di Chimica Università degli Studi di Milano Via C. Golgi, 19 20133 Milano Italy
| | - Umberto Piarulli
- Università degli Studi dell'Insubria Dipartimento di Scienza e Alta Tecnologia Via Valleggio, 11 I-22100 Como Italy
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Keppel P, Sohr B, Kuba W, Goldeck M, Skrinjar P, Carlson JCT, Mikula H. Tetrazine-Triggered Bioorthogonal Cleavage of trans-Cyclooctene-Caged Phenols Using a Minimal Self-Immolative Linker Strategy. Chembiochem 2022; 23:e202200363. [PMID: 35921044 PMCID: PMC9804162 DOI: 10.1002/cbic.202200363] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 08/02/2022] [Indexed: 01/05/2023]
Abstract
Bond-cleavage reactions triggered by bioorthogonal tetrazine ligation have emerged as strategies to chemically control the function of (bio)molecules and achieve activation of prodrugs in living systems. While most of these approaches make use of caged amines, current methods for the release of phenols are limited by unfavorable reaction kinetics or insufficient stability of the Tz-responsive reactants. To address this issue, we have implemented a self-immolative linker that enables the connection of cleavable trans-cyclooctenes (TCO) and phenols via carbamate linkages. Based on detailed investigation of the reaction mechanism with several Tz, revealing up to 96 % elimination after 2 hours, we have developed a TCO-caged prodrug with 750-fold reduced cytotoxicity compared to the parent drug and achieved in situ activation upon Tz/TCO click-to-release.
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Affiliation(s)
- Patrick Keppel
- Institute of Applied Synthetic ChemistryTU Wien1060ViennaAustria
| | - Barbara Sohr
- Institute of Applied Synthetic ChemistryTU Wien1060ViennaAustria
| | - Walter Kuba
- Institute of Applied Synthetic ChemistryTU Wien1060ViennaAustria
| | - Marion Goldeck
- Institute of Applied Synthetic ChemistryTU Wien1060ViennaAustria,Center for Anatomy and Cell BiologyMedical University of Vienna1090ViennaAustria
| | - Philipp Skrinjar
- Institute of Applied Synthetic ChemistryTU Wien1060ViennaAustria
| | - Jonathan C. T. Carlson
- Center for Systems Biology & Department of MedicineMassachusetts General HospitalHarvard Medical SchoolBoston, MA02114USA
| | - Hannes Mikula
- Institute of Applied Synthetic ChemistryTU Wien1060ViennaAustria
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Dal Corso A, Frigoli M, Prevosti M, Mason M, Bucci R, Belvisi L, Pignataro L, Gennari C. Advanced Pyrrolidine-Carbamate Self-Immolative Spacer with Tertiary Amine Handle Induces Superfast Cyclative Drug Release. ChemMedChem 2022; 17:e202200279. [PMID: 35620983 PMCID: PMC9544318 DOI: 10.1002/cmdc.202200279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Indexed: 11/07/2022]
Abstract
Amine-carbamate self-immolative (SI) spacers represent practical and versatile tools in targeted prodrugs, but their slow degradation mechanism limits drug activation at the site of disease. We engineered a pyrrolidine-carbamate SI spacer with a tertiary amine handle which strongly accelerates the spacer cyclization to give a bicyclic urea and the free hydroxy groups of either cytotoxic (Camptothecin) or immunostimulatory (Resiquimod) drugs. In silico conformational analysis and p K a calculations suggest a plausible mechanism for the superior efficacy of the advanced SI spacer compared to state-of-art analogues.
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Affiliation(s)
- Alberto Dal Corso
- Università degli Studi di Milano: Universita degli Studi di Milano, Chemistry, ITALY
| | - Margaux Frigoli
- Università degli Studi di Milano: Universita degli Studi di Milano, Chemistry, 20133, Milano, ITALY
| | - Martina Prevosti
- Università degli Studi di Milano: Universita degli Studi di Milano, Chemistry, 20133, Milano, ITALY
| | - Mattia Mason
- Università degli Studi di Milano: Universita degli Studi di Milano, Chemistry, 20133, Milano, ITALY
| | - Raffaella Bucci
- Università degli Studi di Milano: Universita degli Studi di Milano, Pharmaceutical Sciences, Via Venezian 21, 20133, Milano, ITALY
| | - Laura Belvisi
- Università degli Studi di Milano: Universita degli Studi di Milano, Chemistry, Via Golgi 19, 20133, Milano, ITALY
| | - Luca Pignataro
- Università degli Studi di Milano: Universita degli Studi di Milano, Chemistry, Via Golgi 19, 20133, Milano, ITALY
| | - Cesare Gennari
- Universita degli Studi di Milano, Chemistry Department, via C. Golgi 19, 20133, Milan, ITALY
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Šimon P, Tichotová M, García Gallardo M, Procházková E, Baszczyňski O. Phosphate-Based Self-Immolative Linkers for Tuneable Double Cargo Release. Chemistry 2021; 27:12763-12775. [PMID: 34058033 DOI: 10.1002/chem.202101805] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Indexed: 12/18/2022]
Abstract
Phosphorus-based self-immolative (SI) linkers offer a wide range of applications, such as smart materials and drug-delivery systems. Phosphorus SI linkers are ideal candidates for double-cargo delivery platforms because they have a higher valency than carbon. A series of substituted phosphate linkers was designed for releasing two phenolic cargos through SI followed by chemical hydrolysis. Suitable modifications of the lactate spacer increased the cargo release rate significantly, from 1 day to 2 hours or 5 minutes, as shown for linkers containing p-fluoro phenol. In turn, double cargo linkers bearing p-methyl phenol released their cargo more slowly (4 days, 4 hours, and 15 minutes) than their p-fluoro analogues. The α-hydroxyisobutyrate linker released both cargos in 25 minutes. Our study expands the current portfolio of SI constructs by providing a double cargo delivery option, which is crucial to develop universal SI platforms.
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Affiliation(s)
- Petr Šimon
- Faculty of Science, Charles University, Prague, 128 43, Czech Republic
| | - Markéta Tichotová
- Faculty of Science, Charles University, Prague, 128 43, Czech Republic.,Institute of Organic Chemistry and Biochemistry, The Czech Academy of Sciences, Prague, 166 10, Czech Republic
| | | | - Eliška Procházková
- Institute of Organic Chemistry and Biochemistry, The Czech Academy of Sciences, Prague, 166 10, Czech Republic
| | - Ondřej Baszczyňski
- Faculty of Science, Charles University, Prague, 128 43, Czech Republic.,Institute of Organic Chemistry and Biochemistry, The Czech Academy of Sciences, Prague, 166 10, Czech Republic
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Battistini L, Bugatti K, Sartori A, Curti C, Zanardi F. RGD Peptide‐Drug Conjugates as Effective Dual Targeting Platforms: Recent Advances. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100240] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Lucia Battistini
- Dipartimento di Scienze degli Alimenti e del Farmaco Università di Parma Parco Area delle Scienze 27 A 43124 Parma Italy
| | - Kelly Bugatti
- Dipartimento di Scienze degli Alimenti e del Farmaco Università di Parma Parco Area delle Scienze 27 A 43124 Parma Italy
| | - Andrea Sartori
- Dipartimento di Scienze degli Alimenti e del Farmaco Università di Parma Parco Area delle Scienze 27 A 43124 Parma Italy
| | - Claudio Curti
- Dipartimento di Scienze degli Alimenti e del Farmaco Università di Parma Parco Area delle Scienze 27 A 43124 Parma Italy
| | - Franca Zanardi
- Dipartimento di Scienze degli Alimenti e del Farmaco Università di Parma Parco Area delle Scienze 27 A 43124 Parma Italy
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8
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Dal Corso A. Targeted Small‐Molecule Conjugates: The Future is Now. Chembiochem 2020; 21:3321-3322. [DOI: 10.1002/cbic.202000507] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Revised: 08/12/2020] [Indexed: 12/16/2022]
Affiliation(s)
- Alberto Dal Corso
- Dipartimento di Chimica Università degli Studi di Milano via C. Golgi, 19 20133 Milan Italy
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