Lineage specification in glioblastoma is regulated by METTL7B

Autor: Myrianni Constantinou, James Nicholson, Xinyu Zhang, Eleni Maniati, Sara Lucchini, Gabriel Rosser, Claire Vinel, Jun Wang, Yau Mun Lim, Sebastian Brandner, Sven Nelander, Sara Badodi, Silvia Marino
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Cell Reports, Vol 43, Iss 6, Pp 114309- (2024)
Druh dokumentu: article
ISSN: 2211-1247
DOI: 10.1016/j.celrep.2024.114309
Popis: Summary: Glioblastomas are the most common malignant brain tumors in adults; they are highly aggressive and heterogeneous and show a high degree of plasticity. Here, we show that methyltransferase-like 7B (METTL7B) is an essential regulator of lineage specification in glioblastoma, with an impact on both tumor size and invasiveness. Single-cell transcriptomic analysis of these tumors and of cerebral organoids derived from expanded potential stem cells overexpressing METTL7B reveal a regulatory role for the gene in the neural stem cell-to-astrocyte differentiation trajectory. Mechanistically, METTL7B downregulates the expression of key neuronal differentiation players, including SALL2, via post-translational modifications of histone marks.
Databáze: Directory of Open Access Journals