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Learning on the Fly: The Interplay between Caspases and Cancer
Derek Cui Xu1,2, Lewis Arthurton1, Luis Alberto Baena-Lopez1
1Sir William Dunn School of Pathology, University of Oxford, Oxford OX13RE, UK.
Abstract:
The ease of genetic manipulation, as well as the evolutionary conservation of gene function, has placed Drosophila melanogaster as one of the leading model organisms used to understand the implication of many proteins with disease development, including caspases and their relation to cancer. The family of proteases referred to as caspases have been studied over the years as the major regulators of apoptosis: the most common cellular mechanism involved in eliminating unwanted or defective cells, such as cancerous cells. Indeed, the evasion of the apoptotic programme resulting from caspase downregulation is considered one of the hallmarks of cancer. Recent investigations have also shown an instrumental role for caspases in non-lethal biological processes, such as cell proliferation, cell differentiation, intercellular communication, and cell migration. Importantly, malfunction of these essential biological tasks can deeply impact the initiation and progression of cancer. Here, we provide an extensive review of the literature surrounding caspase biology and its interplay with many aspects of cancer, emphasising some of the key findings obtained from Drosophila studies. We also briefly describe the therapeutic potential of caspase modulation in relation to cancer, highlighting shortcomings and hopeful promises.
Insights
Caspases, crucial for apoptosis, are implicated in cancer development and progression. Drosophila studies reveal their roles in non-lethal processes, offering therapeutic potential for cancer treatment.
Area of Science:
- Molecular Biology
- Genetics
- Cell Biology
Background:
- Caspases are key regulators of apoptosis, a process vital for eliminating defective cells like cancer cells.
- Caspase downregulation is a hallmark of cancer, enabling tumor cells to evade programmed cell death.
- Beyond apoptosis, caspases influence critical cellular functions including proliferation, differentiation, and migration, all relevant to cancer.
Purpose of the Study:
- To review the multifaceted roles of caspases in cancer biology.
- To highlight key findings from Drosophila melanogaster studies on caspase function in cancer.
- To explore the therapeutic potential of modulating caspase activity in cancer treatment.
Main Methods:
- Extensive literature review focusing on caspase biology and cancer.
- Analysis of Drosophila melanogaster as a model organism for studying caspase-related cancer mechanisms.
- Synthesis of current knowledge on caspase involvement in both lethal and non-lethal cellular processes relevant to cancer.
Main Results:
- Caspase dysfunction is linked to cancer initiation and progression through altered apoptosis and other cellular functions.
- Drosophila studies have provided significant insights into conserved caspase functions relevant to human diseases, including cancer.
- Caspase modulation presents a promising, yet challenging, therapeutic avenue for cancer intervention.
Conclusions:
- Caspases play complex roles in cancer, extending beyond apoptosis regulation.
- Drosophila melanogaster serves as a valuable model for dissecting caspase functions in cancer.
- Targeting caspases offers potential therapeutic strategies for cancer, requiring further research and development.
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