@misc{10481/90614, year = {2023}, month = {11}, url = {https://hdl.handle.net/10481/90614}, 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.}, organization = {NIH AI141710}, organization = {Grant PID2020-114256RB-I00 funded by MCIN/AEI/10.13039/501100011033}, organization = {Grants P21_00212 and A-FQM-386-UGR20 funded by FEDER/Junta de Andalucía-Consejería de Transformación Económica, Industria, Conocimiento y Universidades}, publisher = {Elsevier}, title = {Small-molecule TIP60 inhibitors enhance regulatory T cell induction through TIP60-P300 acetylation crosstalk}, doi = {10.1016/j.isci.2023.108491}, author = {Fueyo-González, Francisco and Vilanova, Guillermo and Ningoo, Mehek and Marjanovic, Nada and González Vera, Juan Antonio and Orte Gutiérrez, Ángel and Fribourg, Miguel}, }