Related Experiment Video
Updated: May 22, 2025
07:40
A Data Integration Workflow to Identify Drug Combinations Targeting Synthetic Lethal Interactions
Published on: May 27, 2021
4.1K
Prospects for understanding and exploiting the consequences of hyperactivation lethality
Katharin Shaw1, René Bernards2, Kimberly Stegmaier3
1Broad Institute of MIT and Harvard, Cambridge, MA, USA; Harvard Medical School, Boston, MA, USA; Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA.
Trends in Cancer
|May 20, 2025
Summary
Cancer cells exploit oncogenic hyperactivation, a vulnerability to targeted therapies. This activation lethality strategy offers a new way to treat cancer by inducing lethal pathway activation, overcoming resistance to current treatments.
Area of Science:
- Oncology
- Molecular Biology
- Cancer Therapeutics
Background:
- Cancer cells maintain survival by optimizing oncogenic signaling within a specific range.
- Targeted therapies aim to suppress signaling below this optimal fitness zone.
- Cancers possess a vulnerability to oncogenic hyperactivation, a strategy currently underutilized in clinics.
Purpose of the Study:
- To explore oncogenic hyperactivation as a therapeutic strategy in cancer treatment.
- To investigate the potential of inducing lethal pathway activation in cancer cells.
- To address the limitations of current targeted therapies and overcome treatment resistance.
Main Methods:
- Deep characterization of cancer genomes.
- Unbiased screening approaches to identify targets.
- Investigating small-molecule activators and inhibitors of negative regulators.
Main Results:
- Cytotoxic hyperactivation is observed across diverse cancer types.
- Multiple targets vulnerable to hyperactivation have been identified.
- Inducing lethal pathway activation through small molecules shows promise.
Conclusions:
- Exploiting cancer's intrinsic vulnerability to oncogenic hyperactivation offers a novel therapeutic strategy.
- Activation lethality can expand the cancer treatment landscape and overcome resistance to targeted inhibition.
- Clinical translation requires defining signaling thresholds, discovering biomarkers, and developing appropriate trial designs.
Related Concept Videos
02:41Lethal Alleles
14.0K
Agouti: A Lethal Allele
Lucien Cuénot discovered lethal alleles in 1905 while studying the inheritance of coat color in mice. The agouti gene is responsible for the color of the coat in mice. This gene codes for an agouti-signaling protein, which is responsible for melanin distribution in mammals. The wild-type allele gives rise to gray-brown coat color in mice, while the mutant allele gives rise to yellow coat color. In addition to coat color, the agouti gene is associated with the yellow...
Lucien Cuénot discovered lethal alleles in 1905 while studying the inheritance of coat color in mice. The agouti gene is responsible for the color of the coat in mice. This gene codes for an agouti-signaling protein, which is responsible for melanin distribution in mammals. The wild-type allele gives rise to gray-brown coat color in mice, while the mutant allele gives rise to yellow coat color. In addition to coat color, the agouti gene is associated with the yellow...
14.0K
01:26Toxic Reactions: Overview
921
When toxic substances penetrate the human body, they disseminate to various tissues, undergoing metabolic changes. This process yields reactive metabolites that may covalently bind with specific target molecules, resulting in toxicity.
Toxicity falls into two primary categories: local and systemic.
Local toxicity appears at the exposure site, such as protein denaturation caused by caustic substances.
In contrast, systemic toxicity requires the toxic agent's absorption and distribution,...
Toxicity falls into two primary categories: local and systemic.
Local toxicity appears at the exposure site, such as protein denaturation caused by caustic substances.
In contrast, systemic toxicity requires the toxic agent's absorption and distribution,...
921
01:27Cytotoxic T Cells-mediated Immune Response
821
Cytotoxic T cells are a vital component of the immune system. They have the remarkable ability to identify and target antigens on infected or abnormal cells. These antigens often originate from intracellular pathogens such as viruses or abnormal proteins cancer cells produce.
Immunological surveillance is the ability of immune cells to monitor and eliminate infected cells with intracellular pathogens, neoplastically transformed cells, and cells with non-self antigens. Cytotoxic T cells and NK...
Immunological surveillance is the ability of immune cells to monitor and eliminate infected cells with intracellular pathogens, neoplastically transformed cells, and cells with non-self antigens. Cytotoxic T cells and NK...
821
01:20Desensitization and Tachyphylaxis
1.4K
Tachyphylaxis is described as a rapid decrease in response to a drug after repeated or continuous administration of the same drug dose. It is a phenomenon where the body becomes less responsive to a particular substance or intervention over time, requiring higher doses or stronger interventions to achieve the same effect. It results from adaptive changes in the body's receptors, signaling pathways, or physiological processes that occur in response to prolonged exposure to a stimulus.
1.4K