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Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/188632
Design and synthesis of a novel non peptide CN-NFATc signaling inhibitor for tumor suppression in triple negative breast cancer
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The Ca2+/calmodulin-mediated phosphatase activity of calcineurin (CN) integrates calcium-mediated signaling with gene expression programs involved in the control of essential cellular processes in health and disease, such as the immune response and the pathogenesis of cancer progression and metastasis. In addition, CN is the target of the immunosuppressive drugs cyclosporine A (CsA) and FK-506 which are the cornerstone of immunosuppressant therapy. Unfortunately, long-term administration of these drugs results in severe side effects. Herein, we describe the design, synthesis and evaluation of new synthetic compounds that are capable of inhibiting NFATc activity in a dose-dependent manner, without interfering on CN phosphatase activity. These compounds were designed using the structure-based pharmacophore model of a peptide-derived PxIxIT sequence binding to calcineurin A subunit. Moreover, these compounds inhibit NFATc-dependent cytokine gene expression, secretion and proliferation of human T CD4(+) cells. More importantly, compound 5a reduces tumor weight and shows a tendency to reduce tumor angiogenesis in an orthotopic immunocompetent mouse model of triple negative breast cancer, suggesting that 5a has tumor suppressor activity. These findings validate compound 5a as an agent with therapeutic activity against CN-NFATc and highlight its potential as a tool for drug development with therapeutic purposes.
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SÁNCHEZ MORALES, Adrià, BIÇER, Atilla, PANAGIOTOPOULOS, Vasilis, CRECENTE GARCIA, Selma, BENAIGES, Cristina, BAYOD, Sergi, HERNÁNDEZ, José luis, BUSQUÉ, Félix, MATSOUKAS, Minos timotheos, PÉREZ RIBA, Mercè, ALIBÉS, Ramon. Design and synthesis of a novel non peptide CN-NFATc signaling inhibitor for tumor suppression in triple negative breast cancer. _European Journal of Medicinal Chemistry_. 2022. Vol. 238, núm. 114514. [consulta: 20 de gener de 2026]. [Disponible a: https://hdl.handle.net/2445/188632]