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Updated: Aug 8, 2026

Defining Gene Functions in Tumorigenesis by Ex vivo Ablation of Floxed Alleles in Malignant Peripheral Nerve Sheath Tumor Cells
Published on: August 25, 2021
Death receptor signaling in cancer therapy
Simone Fulda1, Klaus-Michael Debatin
1University Children's Hospital, Prittwitzstr. 43, 89075 Ulm, Germany.
Abstract:
Apoptosis, the cell's intrinsic death program, is a key regulator of tissue homeostasis. An imbalance between cell death and proliferation may result in tumor formation. Also, killing of cancer cells by cytotoxic therapies, such as chemotherapy, gamma-irradiation or ligation of death receptors is predominantly mediated by triggering apoptosis in target cells. Death receptor signaling pathways have been implied to contribute to the efficacy of cancer therapy. Failure to undergo apoptosis in response to anticancer therapy may lead to resistance. Understanding the molecular events that regulate apoptosis induced by anticancer therapy and how cancer cells evade apoptosis may provide new opportunities for drug development. Thus, novel strategies targeting tumor cell resistance will be based on insights into the molecular mechanisms of cell death.
Insights
Apoptosis, or programmed cell death, is crucial for tissue balance and cancer therapy. Understanding how cancer cells evade apoptosis is key to developing new cancer treatments.
Area of Science:
- Cell biology
- Cancer research
- Immunology
Background:
- Apoptosis, the programmed cell death pathway, is vital for maintaining tissue homeostasis.
- Dysregulation of apoptosis contributes to tumor formation and resistance to cancer therapies.
- Cytotoxic therapies, including chemotherapy and radiation, primarily eliminate cancer cells by inducing apoptosis.
Purpose of the Study:
- To explore the molecular mechanisms regulating apoptosis in response to anticancer therapies.
- To investigate how cancer cells evade apoptosis and develop resistance.
- To identify new therapeutic strategies targeting tumor cell resistance by understanding cell death pathways.
Main Methods:
- Analysis of death receptor signaling pathways.
- Investigation of molecular events controlling apoptosis induction.
- Study of cancer cell evasion mechanisms.
Main Results:
- Death receptor signaling pathways are implicated in the efficacy of cancer therapy.
- Failure of cancer cells to undergo apoptosis leads to therapeutic resistance.
- Insights into molecular mechanisms of cell death are crucial for drug development.
Conclusions:
- Targeting apoptosis evasion in cancer cells offers a promising avenue for novel drug development.
- A deeper understanding of the molecular basis of apoptosis and resistance is essential for improving cancer treatment outcomes.
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