Joana Martins-Macedo, Bruna Araújo, Sandra I Anjo, Tiago Silveira-Rosa, Patrícia Patrício, Nuno Dinis Alves, Joana M Silva, Fábio G Teixeira, Bruno Manadas, Ana J Rodrigues, Angelo C Lepore, António J Salgado, Eduardo D Gomes, Luísa Pinto
Adult cytogenesis, the continuous generation of newly-born neurons (neurogenesis) and glial cells (gliogenesis) throughout life, is highly impaired in several neuropsychiatric disorders, such as Major Depressive Disorder (MDD), impacting negatively on cognitive and emotional domains. Despite playing a critical role in brain homeostasis, the importance of gliogenesis has been overlooked, both in healthy and diseased states. To examine the role of newly formed glia, we transplanted Glial Restricted Precursors (GRPs) into the adult hippocampal dentate gyrus (DG), or injected their secreted factors (secretome), into a previously validated transgenic GFAP-tk rat line, in which cytogenesis is transiently compromised...
March 7, 2024: Molecular Psychiatry