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Fueyo-González F, Vilanova G, Ningoo M, Marjanovic N, González-Vera JA, Orte Á, Fribourg M. Small-molecule TIP60 inhibitors enhance regulatory T cell induction through TIP60-P300 acetylation crosstalk. iScience 2023; 26:108491. [PMID: 38094248 PMCID: PMC10716589 DOI: 10.1016/j.isci.2023.108491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 08/12/2023] [Accepted: 11/14/2023] [Indexed: 12/29/2023] Open
Abstract
Foxp3 acetylation is essential to regulatory T (Treg) cell stability and function, but pharmacologically increasing it remains an unmet challenge. Here, we report that small-molecule compounds that inhibit TIP60, an acetyltransferase known to acetylate Foxp3, unexpectedly increase Foxp3 acetylation and Treg induction. Utilizing a dual experimental/computational approach combined with a newly developed FRET-based methodology compatible with flow cytometry to measure Foxp3 acetylation, we unraveled the mechanism of action of these small-molecule compounds in murine and human Treg induction cell cultures. We demonstrate that at low-mid concentrations they activate TIP60 to acetylate P300, a different acetyltransferase, which in turn increases Foxp3 acetylation, thereby enhancing Treg cell induction. These results reveal a potential therapeutic target relevant to autoimmunity and transplant.
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Affiliation(s)
- Francisco Fueyo-González
- Translational Transplant Research Center, Division of Nephrology, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
- Immunology Institute Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Guillermo Vilanova
- LaCàN, Universitat Politècnica de Catalunya-BarcelonaTech, 08034 Barcelona Spain
| | - Mehek Ningoo
- Translational Transplant Research Center, Division of Nephrology, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
- Immunology Institute Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Nada Marjanovic
- Deparment of Neurology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Juan A. González-Vera
- Deparment of Neurology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
- Nanoscopy-UGR Laboratory, Departamento de Fisicoquímica, Unidad de Excelencia de Química Aplicada a Biomedicina y Medioambiente, Facultad de Farmacia, Universidad de Granada, Campus Cartuja, 18071 Granada, Spain
| | - Ángel Orte
- Deparment of Neurology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
- Nanoscopy-UGR Laboratory, Departamento de Fisicoquímica, Unidad de Excelencia de Química Aplicada a Biomedicina y Medioambiente, Facultad de Farmacia, Universidad de Granada, Campus Cartuja, 18071 Granada, Spain
| | - Miguel Fribourg
- Translational Transplant Research Center, Division of Nephrology, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
- Immunology Institute Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
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Reiné P, Justicia J, Morcillo SP, Abbate S, Vaz B, Ribagorda M, Orte Á, Álvarez de Cienfuegos L, Longhi G, Campaña AG, Miguel D, Cuerva JM. Pyrene-Containing ortho-Oligo(phenylene)ethynylene Foldamer as a Ratiometric Probe Based on Circularly Polarized Luminescence. J Org Chem 2018; 83:4455-4463. [PMID: 29577727 PMCID: PMC6145600 DOI: 10.1021/acs.joc.8b00162] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
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In
this manuscript, we report the first synthesis of an organic
monomolecular emitter, which behaves as a circularly polarized luminescence
(CPL)-based ratiometric probe. The enantiopure helical ortho-oligo(phenylene)ethynylene (o-OPE) core has been
prepared by a new and efficient macrocyclization reaction. The combination
of such o-OPE helical skeleton and a pyrene couple
leads to two different CPL emission features in a single structure
whose ratio linearly responds to silver(I) concentration.
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Affiliation(s)
- Pablo Reiné
- Department of Organic Chemistry , University of Granada , Avenida de la Fuente Nueva , 18071 Granada , Spain
| | - Jose Justicia
- Department of Organic Chemistry , University of Granada , Avenida de la Fuente Nueva , 18071 Granada , Spain
| | - Sara P Morcillo
- Department of Organic Chemistry , University of Granada , Avenida de la Fuente Nueva , 18071 Granada , Spain
| | - Sergio Abbate
- Dipartimento di Medicina Molecolare e Traslazionale , Universitá di Brescia , Viale Europa 11 , 25123 Brescia , Italy
| | - Belen Vaz
- Department of Organic Chemistry, Biomedical Research Center (CINBIO), and Southern Galicia Institute of Health Research (IISSG) , Universidade de Vigo , 36310 Vigo , Spain
| | - María Ribagorda
- Department of Organic Chemistry , Universidad Autónoma de Madrid , Ciudad Universitaria de Cantoblanco , 28049 Madrid , Spain
| | - Ángel Orte
- Department of Physical Chemistry , University of Granada , Avenida de la Fuente Nueva , 18071 Granada , Spain
| | - Luis Álvarez de Cienfuegos
- Department of Organic Chemistry , University of Granada , Avenida de la Fuente Nueva , 18071 Granada , Spain
| | - Giovanna Longhi
- Dipartimento di Medicina Molecolare e Traslazionale , Universitá di Brescia , Viale Europa 11 , 25123 Brescia , Italy
| | - Araceli G Campaña
- Department of Organic Chemistry , University of Granada , Avenida de la Fuente Nueva , 18071 Granada , Spain
| | - Delia Miguel
- Department of Physical Chemistry , University of Granada , Avenida de la Fuente Nueva , 18071 Granada , Spain
| | - Juan M Cuerva
- Department of Organic Chemistry , University of Granada , Avenida de la Fuente Nueva , 18071 Granada , Spain
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