LQB‑118 compound inhibits migration and induces cell death in glioblastoma cells

  • Authors:
    • Paula Sabbo Bernardo
    • Gustavo Henrique C. Guimarães
    • Fernanda Costas C. De Faria
    • Gabriel M. Da Cunha Longo
    • Giselle P. De Faria Lopes
    • Chaquip Daher Netto
    • Paulo R.R. Costa
    • Raquel C. Maia
  • View Affiliations

  • Published online on: November 6, 2019     https://doi.org/10.3892/or.2019.7402
  • Pages: 346-357
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Abstract

Glioblastoma (GBM) is the most frequent malignant brain tumor. It represents the most aggressive astrocytoma with an overall survival of 14 months. Despite improvements in surgery techniques, radio‑ and chemotherapy, most patients present treatment resistance, recurrence and disease progression. Therefore, development of effective alternative therapies is essential to overcome treatment failure. The purpose of the study was to evaluate the antitumoral activity of the synthetic compound LQB‑118, in vitro. Monolayer and three‑dimensional (3D) cell culture systems of human‑derived GBM cell lines were used to evaluate the effect of LQB‑118 on cell viability, cell death and migration. LQB‑118 reduced cell viability as determined by MTT and trypan blue exclusion assays and promoted apoptosis in monolayer cell lines with an intrinsic temozolomide (TMZ)‑resistance profile. In 3D culture models, LQB‑118 reduced cell viability as evaluated by APH assay and inhibited cell migration while the TMZ resistance profile was maintained. Moreover, LQB‑118 reduced p38 and AKT expression and phosphorylation, whereas it reduced only the phosphorylated ERK1/2 form. LQB‑118 reduced p38 and NRF2 expression, an axis that is associated with TMZ resistance, revealing a mechanism to overcome resistance. LQB‑118 also demonstrated an additional effect when combined with ionizing radiation and cisplatin. In conclusion, the present data demonstrated that LQB‑118 maintained its effectiveness in a 3D cell conformation, which shares more similarities with the tumor mass. LQB‑118 is a promising agent for GBM treatment as monotherapy and associated with radiotherapy or cisplatin. Its effect is associated with inhibition of GBM‑related survival signaling pathways.

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January 2020
Volume 43 Issue 1

Print ISSN: 1021-335X
Online ISSN:1791-2431

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APA
Bernardo, P.S., Guimarães, G.C., De Faria, F.C., Longo, G.M., Lopes, G.P., Netto, C.D. ... Maia, R.C. (2020). LQB‑118 compound inhibits migration and induces cell death in glioblastoma cells. Oncology Reports, 43, 346-357. https://doi.org/10.3892/or.2019.7402
MLA
Bernardo, P. S., Guimarães, G. C., De Faria, F. C., Longo, G. M., Lopes, G. P., Netto, C. D., Costa, P. R., Maia, R. C."LQB‑118 compound inhibits migration and induces cell death in glioblastoma cells". Oncology Reports 43.1 (2020): 346-357.
Chicago
Bernardo, P. S., Guimarães, G. C., De Faria, F. C., Longo, G. M., Lopes, G. P., Netto, C. D., Costa, P. R., Maia, R. C."LQB‑118 compound inhibits migration and induces cell death in glioblastoma cells". Oncology Reports 43, no. 1 (2020): 346-357. https://doi.org/10.3892/or.2019.7402