| Full text | |
| Author(s): Show less - |
Cruvinel-Carloni, Adriana
;
Silva-Oliveira, Renato
;
Torrieri, Raul
;
Bidinotto, Lucas Tadeu
;
Berardinelli, Gustavo Noriz
;
Oliveira-Silva, Viviane Aline
;
Clara, Carlos Afonso
;
de Almeida, Gisele Caravina
;
Martinho, Olga
;
Squire, Jeremy Andrew
;
Reis, Rui Manuel
Total Authors: 11
|
| Document type: | Journal article |
| Source: | TRANSLATIONAL CANCER RESEARCH; v. 6, n. 2, p. 332+, APR 2017. |
| Web of Science Citations: | 4 |
| Abstract | |
Background: Glioblastoma, the most frequent and malignant adult brain tumor, has been extensively studied. However, there is no effective treatment, and to overcome this challenging scenario, it is essential to improve preclinical biological models. This study aimed to molecularly characterize short-term glioblastoma primary cultures and to compare them with patient tumor profiles. Methods: Glioblastoma cell lines were established from Barretos Cancer Hospital patients diagnosed with glioblastoma. The cells were cultured with DMEM (+)10% FBS (+)1% PS and were molecularly characterized using array CGH (aCGH), next-generation and Sanger sequencing. Results: We established four short-term glioblastoma cultures and we found that the primary cells exhibited a diversity of chromosomal aberrations, with gain of chromosome 7 and loss of chromosomes 10, 13 and 17p being the most frequent alterations. Mutation profiling showed that hotspot TERT promoter mutations were present in 3/4 cases, followed by mutations in TP53 (2/4) and in the RB1, BRAF and PTEN (1/4) genes. A similar chromosomal and mutation pattern was observed in all short-term cultures and matched frozen tumors. Conclusions: Herein, short-term glioblastoma primary cultures were successfully characterized and had genetic make-ups that were similar to those of patient tumors, suggesting that short-term primary cultures are suitable in vitro models for studies of glioblastoma biology. (AU) | |
| FAPESP's process: | 11/08523-7 - Chromosomal alterations profiling in brain tumors (medulloblastomas and gliomas): the impact in the identification of new tumorigenic pathways |
| Grantee: | Lucas Tadeu Bidinotto |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |
| FAPESP's process: | 12/08287-4 - Chromosomal alterations profiling in gliomas |
| Grantee: | Lucas Tadeu Bidinotto |
| Support Opportunities: | Scholarships abroad - Research Internship - Post-doctor |
| FAPESP's process: | 12/19590-0 - Mutational profile of glioblastoma primary cultures |
| Grantee: | Rui Manuel Vieira Reis |
| Support Opportunities: | Regular Research Grants |