Related Experiment Video
Updated: May 7, 2026

Implementation of In Vitro Drug Resistance Assays: Maximizing the Potential for Uncovering Clinically Relevant Resistance Mechanisms
Published on: December 9, 2015
Somatic alterations as the basis for resistance to targeted therapies
Brian G Blair1, Alberto Bardelli, Ben Ho Park
1Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Baltimore, MD, USA.
Abstract:
Recent advances in genetics and genomics have revealed new genes and pathways that are somatically altered in human malignancies. This wealth of knowledge has translated into molecularly defined targets for therapy over the past two decades, serving as key examples that translation of laboratory findings can have great impact on the ability to treat patients with cancer. However, given the genetic instability and heterogeneity that are characteristic of all human cancers, drug resistance to virtually all therapies has emerged, posing further and future challenges for clinical oncology. Here we review the history of targeted therapies, including examples of genetically defined cancer targets and their approved therapies. We also discuss resistance mechanisms that have been uncovered, with an emphasis on somatic genetic alterations that lead to these phenotypes.
Insights
Targeted cancer therapies, driven by genetic discoveries, have advanced treatment. However, cancer
Area of Science:
- Oncology
- Genetics
- Genomics
Background:
- Recent advances in genetics and genomics have identified novel somatically altered genes and pathways in human cancers.
- This knowledge has led to the development of molecularly defined therapeutic targets over the past two decades.
- The translation of laboratory findings into targeted therapies has significantly impacted cancer treatment.
Purpose of the Study:
- To review the history and evolution of targeted therapies in cancer treatment.
- To highlight examples of genetically defined cancer targets and their approved therapies.
- To discuss the mechanisms of drug resistance, focusing on somatic genetic alterations.
Main Methods:
- Literature review of targeted therapies in oncology.
- Analysis of historical data on the development of cancer therapies.
- Examination of resistance mechanisms, particularly somatic genetic alterations.
Main Results:
- Targeted therapies have emerged as a significant advancement in cancer treatment.
- Numerous genetically defined targets and corresponding therapies have been approved.
- Drug resistance, driven by genetic instability and heterogeneity, remains a major challenge.
Conclusions:
- Targeted therapies represent a successful translation of genetic research into clinical practice.
- Understanding and overcoming drug resistance mechanisms is crucial for future cancer treatment strategies.
- Somatic genetic alterations are key drivers of resistance to targeted cancer therapies.
More Related Videos
08:59Looking for Driver Pathways of Acquired Resistance to Targeted Therapy: Drug Resistant Subclone Generation and Sensitivity Restoring by Gene Knock-down
Published on: December 11, 2017
08:52Profiling Sensitivity to Targeted Therapies in EGFR-Mutant NSCLC Patient-Derived Organoids
Published on: November 22, 2021
Related Concept Videos
Treatment Resistant Cancers
Targeted Cancer Therapies
There are several types of targeted therapies against...
Cancers Originate from Somatic Mutations in a Single Cell
Cancers Originate from Somatic Mutations in a Single Cell
Adaptive Mechanisms in Cancer Cells
Some of the advantages that cancer cells have on normal cells include - enhanced ability to divide without terminally differentiating, induce new blood vessel formation,...
Adaptive Mechanisms in Cancer Cells