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Updated: May 30, 2026

Use of LysoTracker to Detect Programmed Cell Death in Embryos and Differentiating Embryonic Stem Cells
Published on: October 11, 2012
Deciphering the rules of programmed cell death to improve therapy of cancer and other diseases
Andreas Strasser1, Suzanne Cory, Jerry M Adams
1The Walter and Eliza Hall Institute of Medical Research, Melbourne, Australia. strasser@wehi.edu.au
Abstract:
Apoptosis, the major form of programmed cell death in metazoan organisms, plays critical roles in normal development, tissue homeostasis and immunity, and its disturbed regulation contributes to many pathological states, including cancer, autoimmunity, infection and degenerative disorders. In vertebrates, it can be triggered either by engagement of 'death receptors' of the tumour necrosis factor receptor family on the cell surface or by diverse intracellular signals that act upon the Bcl-2 protein family, which controls the integrity of the mitochondrial outer membrane through the complex interactions of family members. Both pathways lead to cellular demolition by dedicated proteases termed caspases. This review discusses the groundbreaking experiments from many laboratories that have clarified cell death regulation and galvanised efforts to translate this knowledge into novel therapeutic strategies for the treatment of malignant and perhaps certain autoimmune and infectious diseases.
Insights
Apoptosis, or programmed cell death, is vital for development and immunity. Dysregulation of apoptosis contributes to diseases like cancer, and understanding its mechanisms offers therapeutic potential.
Area of Science:
- Cell Biology
- Molecular Biology
- Biochemistry
Background:
- Apoptosis is a fundamental process of programmed cell death in metazoans, crucial for development, tissue homeostasis, and immunity.
- Aberrant apoptosis regulation is implicated in various pathologies, including cancer, autoimmune diseases, infections, and degenerative disorders.
- Two primary apoptotic pathways exist in vertebrates: death receptor-mediated and mitochondrial-mediated, both converging on caspase activation.
Purpose of the Study:
- To review the groundbreaking experimental findings that have elucidated the mechanisms of cell death regulation.
- To highlight the translation of this knowledge into potential novel therapeutic strategies.
- To discuss the application of apoptosis research in treating malignant, autoimmune, and infectious diseases.
Main Methods:
- This review synthesizes findings from numerous laboratories worldwide.
- It focuses on experimental data clarifying cell death regulation pathways.
- The review examines the complex interactions within the Bcl-2 protein family and death receptor signaling.
Main Results:
- Significant progress has been made in understanding the molecular intricacies of apoptosis.
- The roles of death receptors, the Bcl-2 family, and caspases in cell death have been clarified.
- Translational research is actively exploring therapeutic applications based on these findings.
Conclusions:
- Understanding apoptosis mechanisms is critical for addressing numerous human diseases.
- Targeting apoptotic pathways holds promise for developing novel treatments for cancer and other disorders.
- Continued research is essential for translating fundamental discoveries into effective clinical interventions.
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