RT Conference Proceedings T1 Unveiling the Synergistic Interplay of Neuropeptides for Novel Therapeutic Approaches in Neurodegenerative and Depressive Disorders. A1 Díaz-Sánchez, Estela A1 López-Salas, Alexander A1 Álvarez-Contino, José Erik A1 Barbancho-Fernández, Miguel Ángel A1 Sánchez-Pérez, José Andrés A1 Blanco-Reina, Encarnación A1 Brito Rodríguez, Ismel A1 Serrano-Castro, Pedro Jesús A1 Fuxe, Kjell A1 Borroto Escuela, Dasiel Óscar A1 García-Casares, Natalia A1 Narváez-Peláez, Manuel K1 Cerebro - Enfermedades K1 Neuronas - Crecimiento AB The intricate relationship between hippocampal neurogenesis dysregulation and neurodegenerative diseases such as Alzheimer's, as well as depression, has sparked an urgent call for innovative therapeutic strategies. Our groundbreaking study delves into the interaction of Neuropeptide Y (NPY) and galanin (GAL) agonists, two neuromodulatory systems with a substantial presence in the limbic system, and their potential neurogenic impact on both the dorsal and ventral hippocampus.Through meticulous examination of the subchronic e"ects of NPY Y1 (Y1R) and GAL2 (GALR2) agonists on hippocampal cell proliferation, survival, and neuroprotective factor expression, we reveal a fascinating cascade of cellular responses. These include increased cell proliferation (PCNA), enhanced hippocampal cell survival (BrdU), and induction of neuroprotective factors (BDNF).Our functional assessment showcases the resulting improvements in spatial memory performance in the object-in-place task and antidepressant-like e"ects in the forced swimming test. These outcomes are attributed to the synergistic interaction between Y1R and GALR2 receptors, which promote neuronal survival and neurite outgrowth in hippocampal cells.This pioneering research paves the way for the development of heterobivalent agonist pharmacophores that target Y1R-GALR2 heterocomplexes. By acting on neuronal precursor cells in the dentate gyrus of the dorsal hippocampus, these novel compounds hold immense promise as transformative therapies for cognitive and a"ective impairments in neurodegenerative and depressive diseases. YR 2023 FD 2023 LK https://hdl.handle.net/10630/27677 UL https://hdl.handle.net/10630/27677 LA eng NO Supported by the Proy_Excel_2021_0613 (Junta de Andalucía) and Proyecto Puente (B4-2021) (UMA), Spain to MN. Swedish Medical Research Council, Sweden (62X-00715-50-3), to KF, by Stiftelsen Olle Engkvist Byggmästare to KF, and by Hjärnfonden, Sweden (F02018-0286), Hjärnfonden, Sweden (F02019-0296) and EMERGIA2020 (Junta de Andalucía), to DOBE.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech. DS RIUMA. Repositorio Institucional de la Universidad de Málaga RD 20 ene 2026