Related Experiment Video
Updated: Nov 11, 2025

Testing Targeted Therapies in Cancer using Structural DNA Alteration Analysis and Patient-Derived Xenografts
Published on: July 25, 2020
Molecularly Targeted Clinical Trials
Matthew A Smith-Cohn1, Orieta Celiku2, Mark R Gilbert3
1Neuro-Oncology Branch, National Cancer Institute, National Institutes of Health, 37 Convent Drive, Building 37, Room 1016, Bethesda, MD 20892, USA; Department of Neurology, The Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA.
Abstract:
Glioblastoma remains incurable despite advances in surgery, radiation, and chemotherapy, underscoring the need for new therapies. The genetic heterogenicity, presence of redundant molecular pathways, and the blood-brain barrier have limited the applicability of molecularly targeted agents. The therapeutic benefit seen with a small subset of patients suggests, however, that patient selection is critical. Recent investigations show that molecularly targeted synthetic lethality is a promising complementary approach. The article provides an overview of the challenges of molecularly targeted therapy in adults with glioblastoma, including current trials and future therapeutic directions.
Insights
Glioblastoma treatment faces challenges due to genetic diversity and the blood-brain barrier. Targeted synthetic lethality offers a promising new therapeutic avenue for glioblastoma patients.
Area of Science:
- Neuro-oncology
- Cancer Therapeutics
- Molecular Biology
Background:
- Glioblastoma (GBM) remains a highly lethal brain cancer with limited treatment options.
- Current therapies (surgery, radiation, chemotherapy) have shown minimal impact on overall survival.
- Intrinsic tumor complexities like genetic heterogeneity and redundant pathways hinder treatment efficacy.
Purpose of the Study:
- To review the challenges associated with molecularly targeted therapy in adult glioblastoma.
- To explore the potential of synthetic lethality as a complementary therapeutic strategy.
- To discuss current clinical trials and future directions for glioblastoma treatment.
Main Methods:
- Literature review of glioblastoma molecularly targeted therapies.
- Analysis of challenges including the blood-brain barrier and tumor heterogeneity.
- Examination of synthetic lethality principles and their application to glioblastoma.
Main Results:
- Molecularly targeted agents face significant hurdles in glioblastoma treatment.
- Patient selection is crucial for therapeutic benefit, as indicated by subset responses.
- Synthetic lethality presents a promising approach to overcome resistance mechanisms.
Conclusions:
- Novel therapeutic strategies are urgently needed for glioblastoma.
- Targeted synthetic lethality holds significant promise for improving glioblastoma outcomes.
- Future research should focus on patient stratification and innovative therapeutic combinations.
More Related Videos
06:54MR Molecular Imaging of Prostate Cancer with a Small Molecular CLT1 Peptide Targeted Contrast Agent
Published on: September 3, 2013
13:24Integration of Wet and Dry Bench Processes Optimizes Targeted Next-generation Sequencing of Low-quality and Low-quantity Tumor Biopsies
Published on: April 11, 2016
Related Concept Videos
Targeted Cancer Therapies
There are several types of targeted therapies against...
Clinical Trials
There are four phases in a clinical trial. A phase one...
Clinical Trials: Overview
Combination Therapies and Personalized Medicine
The combination of the drug acetazolamide and sulforaphane is a good example of combination therapy to treat cancer. The cells in the interior of a large tumor often die due to the hypoxic and...
Targets for Drug Action: Overview
Receptors are either membrane-spanning or intracellular proteins, which upon binding a ligand, get activated and transmit the signal downstream to elicit a response. Drugs bind receptors, either mimicking the action of endogenous ligands or blocking the receptor activity to bring about a modified response. Nearly 35% of approved drugs target the G...