Dr. Aleksandra Majchrzak-Celińska works at the Department of Pharmaceutical Biochemistry, Poznan University of Medical Sciences (PUMS), Poland. She completed her Ph.D. studies at PUMS in 2009. The aim of her Ph.D. thesis was the evaluation of the DNA methylation profile of genes selected on the basis of their diagnostic and/or prognostic potential in central nervous system tumors. Her habilitation focused on the canonical Wnt pathway as a therapeutic target and as a source of biomarkers for the diagnosis of brain tumors. Currently, she works as an associate professor and co-supervises Ph.D. theses regarding the use of selected nanoformulations in the treatment of glioblastoma.