Received: 4 March 2021
Accepted: 4 November 2021
First Online: 19 November 2021
: Primary human glioblastoma cell cultures (GMBs) were derived from tumours obtained from patients who had given written consent at the time. All procedures were approved by the local Ethics Committee at the Centre for Health Sciences at the Federal University of Rio de Janeiro (Protocol N<sup>o</sup>. DAHEICB 015) and by the Brazilian Ministry of Health Ethics Committee (CONEP Protocol N<sup>o</sup>. 2340) and were performed in accordance with the 1964 Helsinki declaration and its later amendments.
: Not applicable.
: The authors declare no conflict of interest.