Résumé
Low-grade, diffuse gliomas comprise a heterogeneous group of tumors that display different phenotypes, genetic alterations, and clinical features. Important advances made over the past decade have significantly contributed to clarifying the cellular origin of these tumors. The identification of new markers for cells derived from the neural lineage combined with the detailed characterization of stem cell and progenitor cell populations that reside in the adult brain has fueled the development of original approaches to identify the cell type from which these tumors are derived. In this chapter, we will summarize our current knowledge in this dynamic field of research.