Related Experiment Video

Updated: Feb 14, 2026

Assessment of Resistance to Tyrosine Kinase Inhibitors by an Interrogation of Signal Transduction Pathways by Antibody Arrays
07:42

Assessment of Resistance to Tyrosine Kinase Inhibitors by an Interrogation of Signal Transduction Pathways by Antibody Arrays

Published on: September 19, 2018

8.4K

Redundancy in Growth Factor Receptor Signaling in Adult Astrocytoma Resistance to Small-Molecule Tyrosine Kinase

Roxana Radu1, Anica Dricu2, Ligia Gabriela Tataranu1,3

  • 1Department of Neurosurgery, Faculty of Medicine, "Carol Davila" University of Medicine and Pharmacy, 020022 Bucharest, Romania.

International Journal of Molecular Sciences
|February 13, 2026
PubMed

Insights

Adult astrocytomas, especially IDH-wildtype gliomas, show poor outcomes despite advances. Tyrosine kinase inhibitors (TKIs) are ineffective due to complex drug resistance mechanisms in these heterogeneous tumors.

Area of Science:

  • Neuro-oncology
  • Molecular Biology
  • Cancer Therapeutics

Background:

  • Adult astrocytomas, particularly IDH-wildtype infiltrating astrocytic gliomas, present significant therapeutic challenges.
  • Despite advances in molecular biology and biomarkers, patient outcomes remain poor.
  • Targeted therapies like small-molecule tyrosine kinase inhibitors (TKIs) have limited efficacy in adult astrocytomas.

Purpose of the Study:

  • To review growth factor receptors (GFRs) and their signaling pathways in adult astrocytomas.
  • To discuss known mechanisms of resistance to small-molecule tyrosine kinase inhibitors (TKIs).

Main Methods:

  • Literature review of adult astrocytomas.
  • Analysis of growth factor receptor signaling pathways.
  • Examination of drug resistance mechanisms in astrocytoma.

Main Results:

  • Adult astrocytomas exhibit remarkable heterogeneity.
  • Tumors develop robust drug resistance mechanisms, contributing to therapeutic failure.
  • Molecular processes driving resistance to TKIs are complex and not fully elucidated.

Conclusions:

  • Understanding GFR signaling and resistance mechanisms is crucial for improving adult astrocytoma treatment.
  • Further research is needed to overcome TKI resistance and enhance patient survival.
Keywords:
EGFRadult astrocytomadrug resistanceglioblastomagrowth factor receptorssignaling pathwaystargeted therapytyrosine kinase inhibitors

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