RT Journal Article T1 The synthetic molecule stauprimide impairs cell growth and migration in triple-negative breast cancer A1 Carrillo Fernández, Paloma A1 Bernal Muñoz, Manuel A1 Téllez Quijorna, Clara A1 Marrero Capitán, Ana Dácil A1 Vidal-Valenzuela, Isabel A1 Castilla, Laura A1 Caro Salazar, Carlos A1 Domínguez Moreno, Alejandro A1 García-Martín, María Luisa A1 Rodríguez-Quesada, Ana María A1 Medina-Torres, Miguel Ángel A1 Martínez-Póveda, Beatriz Amparo K1 Mamas -- Cáncer K1 Células madre AB Stauprimide, a semi-synthetic derivative of staurosporine, is known mainly for its potent differentiation-enhancing properties in embryonic stem cells. Here, we studied the effects of stauprimide in cell growth and migration of triple-negative breast cancer cells in vitro, evaluating its potential antitumoral activity in an orthotopic mouse model of breast cancer in vivo. Our results from survival curves, EdU incorporation, cell cycle analysis and annexin-V detection in MDA-MB-231 cells indicated that stauprimide inhibited cell proliferation, arresting cell cycle in G2/M without induction of apoptosis. A decrease in the migratory capability of MDA-MB-231 was also assessed in response to stauprimide. In this work we pointed to a mechanism of action of stauprimide involving the modulation of ERK1/2, Akt and p38 MAPK signalling pathways, and the downregulation of MYC in MDA-MB-231 cells. In addition, orthotopic MDA-MB-231 xenograft and 4T1 syngeneic models suggested an effect of stauprimide in vivo, increasing the necrotic core of tumors and reducing metastasis in lung and liver of mice. Together, our results point to the promising role of stauprimide as a putative therapeutic agent in triple-negative breast cancer. PB Elsevier YR 2022 FD 2022-12-14 LK https://hdl.handle.net/10630/26491 UL https://hdl.handle.net/10630/26491 LA eng NO Carrillo, P., Bernal, M., Téllez-Quijorna, C., Marrero, A. D., Vidal, I., Castilla, L., ... & Martínez-Poveda, B. (2023). The synthetic molecule stauprimide impairs cell growth and migration in triple-negative breast cancer. Biomedicine & Pharmacotherapy, 158, 114070. NO MRI experiments were performed in the ICTS “NANBIOSIS”, more specifically in the U28 Unit at the Andalusian Centre for Nanomedicine & Biotechnology (BIONAND). Cell cultures were performed in the Cell Culture Service at the Central Support Services of Research (SCAI) of the University of Málaga. // Partial funding for open access charge: Universidad de Málaga / CBUA. DS RIUMA. Repositorio Institucional de la Universidad de Málaga RD 20 ene 2026