Related Experiment Video
Updated: May 22, 2026

Testing Targeted Therapies in Cancer using Structural DNA Alteration Analysis and Patient-Derived Xenografts
Published on: July 25, 2020
Dynamics of targeted cancer therapy
Ivana Bozic1, Benjamin Allen, Martin A Nowak
1Program for Evolutionary Dynamics, Harvard University, Cambridge, MA 02138, USA.
Mathematical models predict how tumors develop resistance to targeted cancer therapies. Understanding these evolutionary dynamics is crucial for designing combination treatments to overcome drug resistance and improve patient outcomes.
Area of Science:
- Oncology
- Mathematical Biology
- Cancer Evolution
Background:
- Targeted cancer therapies show promise for cures but are often limited by acquired drug resistance.
- Tumor cells can evolve resistance, leading to patient relapse within months of initial treatment.
- Understanding the mechanisms of resistance is critical for improving long-term treatment efficacy.
Purpose of the Study:
- To explore the application of mathematical models in understanding cancer drug resistance.
- To predict patterns in the success and failure of anticancer therapies.
- To inform the development of effective combination therapy strategies.
Main Methods:
- Utilizing mathematical models of somatic evolution to simulate tumor dynamics.
- Incorporating factors such as cell division/death rates, mutation rates, tumor size, and growth constraints.
- Analyzing how these factors influence the emergence of drug-resistant tumor cells.
Main Results:
- Mathematical models can accurately predict and explain the development of resistance in tumors.
- These models highlight the role of evolutionary dynamics in treatment failure.
- The findings underscore the complexity of tumor growth and resistance mechanisms.
Conclusions:
- Mathematical modeling is an essential tool for predicting and combating cancer drug resistance.
- Insights from these models can guide the design of combination therapies.
- Future strategies should focus on minimizing the evolution of resistance for durable cancer treatment.
Related Concept Videos
Targeted Cancer Therapies
There are several types of targeted therapies against specific...
Targeted Cancer Therapies
There are several types of targeted therapies against specific...
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...
Modified-Release Drug Delivery Systems: Site-Targeted
Cancer Therapies
However, cancer treatments can pose several challenges, as therapies used to kill cancer cells are generally also toxic to normal cells. Moreover, cancer cells mutate rapidly and can develop resistance to chemical agents or radiation therapy. Besides, all types of cancer cells may not respond to the same therapy. Some cancer cells respond to one...
Cancer Therapies
However, cancer treatments can pose several challenges, as therapies used to kill cancer cells are generally also toxic to normal cells. Moreover, cancer cells mutate rapidly and can develop resistance to chemical agents or radiation therapy. Besides, all types of cancer cells may not respond to the same therapy. Some cancer cells respond to one...
